Team:UANL Mty-Mexico/Contributions/Light Machine

From 2011.igem.org

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Line 1: Line 1:
 +
{{:Team:UANL_Mty-Mexico/Templates/BannerLightMachine}}
 +
{{:Team:UANL_Mty-Mexico/Templates/Menu-template}}
<html>
<html>
<head>
<head>
Line 19: Line 21:
/-->
/-->
-
        <!-- Include jQuery first. -->
+
 
-
<script type="text/javascript" src="http://www.genobiotec2011.org/iGEMwiki/jquery-1.3.2.min.js"></script>
+
-
 
+
-
        <!-- Include the below script, Copyright 2010, Brandon Aaron (http://brandonaaron.net/) for scrollwheel support. -->
+
-
<script type="text/javascript" src="http://www.genobiotec2011.org/iGEMwiki/jquery-mousewheel/jquery.mousewheel.min.js"></script>
+
-
 
+
-
+
-
<link rel="stylesheet" type="text/css" href="http://www.genobiotec2011.org/iGEMwiki/slidedeck.skin.css" media="screen" />
+
-
        <!-- Styles for the skin that only load for Internet Explorer -->
+
-
        <!--[if lte IE 8]>
+
-
        <link rel="stylesheet" type="text/css" href="http://www.genobiotec2011.org/iGEMwiki/slidedeck.skin.ie.css" media="screen,handheld" />
+
-
        <![endif]-->
+
-
+
-
        <!-- Include the SlideDeck jQuery script. -->
+
-
<script type="text/javascript" src="http://www.genobiotec2011.org/iGEMwiki/slidedeck.jquery.lite.pack.js"></script>
+
-
       
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-
        <style type="text/css">
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-
            #slidedeck_frame {
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-
width: 665px;
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-
height: 200px;
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-
            }       
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-
        </style>
+
-
 
+
-
<style>
+
-
 
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-
#botonera {
+
-
}
+
-
 
+
-
.lateral-button {
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-
font-family: Verdana, Geneva, sans-serif;
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-
font-size: 12px;
+
-
font-weight: bold;
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-
color: #036;
+
-
text-decoration: none;
+
-
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
-webkit-border-radius: 5px;
+
-
-moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
  cursor: pointer;
+
-
  text-align: center;
+
-
}
+
-
 
+
-
.lateral-button:hover {
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-
font-family: Verdana, Geneva, sans-serif;
+
-
font-size: 12px;
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-
font-weight: bolder;
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-
color: #036;
+
-
text-decoration:underline;
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-
background-color:#CCC;
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-
color:#000;
+
-
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
-webkit-border-radius: 5px;
+
-
-moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
  cursor: pointer;
+
-
  text-align: center;
+
-
}
+
-
 
+
-
.lateral-button a {
+
-
font-family: Verdana, Geneva, sans-serif;
+
-
font-size: 12px;
+
-
font-weight: bold;
+
-
color: #036;
+
-
text-decoration: none;
+
-
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
-webkit-border-radius: 5px;
+
-
-moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
  cursor: pointer;
+
-
  text-align: center;
+
-
}
+
-
 
+
-
.lateral-button:hover a {
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-
font-family: Verdana, Geneva, sans-serif;
+
-
font-size: 12px;
+
-
font-weight: bolder;
+
-
color: #036;
+
-
text-decoration:underline;
+
-
background-color:#CCC;
+
-
color:#000;
+
-
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
-webkit-border-radius: 5px;
+
-
-moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
  cursor: pointer;
+
-
  text-align: center;
+
-
}
+
-
 
+
-
.style5.top-menu {
+
-
  background: transparent;
+
-
  margin: auto;
+
-
  width: 950px;
+
-
  margin-top: -35px;
+
-
 
+
-
}
+
-
.style5 ul.top-menu-main {
+
-
  margin: auto;
+
-
  width: 950px;
+
-
  font-family: Georgia, Tahoma, Arial;
+
-
  font-size: 10px;
+
-
  line-height: 18px;
+
-
}
+
-
 
+
-
.style5 ul.top-menu-main > li {
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-
  background: #000;
+
-
  border-right: 1px solid #afafaf;
+
-
+
-
 
+
-
  color: #fff;
+
-
  margin: 0;
+
-
}
+
-
 
+
-
.style5 ul.top-menu-main > li.last {
+
-
  border-right: none;
+
-
}
+
-
.style5 ul.top-menu-main > li:hover .menu-item-text
+
-
{color: #cfcfcf; text-shadow: 0 1px 0 #0C131C;}
+
-
 
+
-
.style5 ul.top-menu-main > li:hover{
+
-
  background: #333 transparent;
+
-
  color: #fff;
+
-
  -moz-box-shadow: 0 0 8px #333;
+
-
  -webkit-box-shadow: 0 0 8px #333;
+
-
  box-shadow: 0 0 8px #333;
+
-
}
+
-
 
+
-
.style5 ul.top-menu-main > li > a {
+
-
  color: #fff;
+
-
  text-decoration: none;
+
-
}
+
-
.style5 ul.top-menu-main > li > a:hover {
+
-
  color: #fff;
+
-
}
+
-
 
+
-
.style5 ul.top-menu-main > li > a {
+
-
  padding: 10px 10px;
+
-
}
+
-
 
+
-
.style5 ul.top-submenu {
+
-
  -moz-box-shadow: 0 0 8px #333;
+
-
  -webkit-box-shadow: 0 0 8px #333;
+
-
  /*box-shadow: 0 0 8px #333;*/
+
-
  box-shadow: 0 0 8px #fff;
+
-
 
+
-
}
+
-
 
+
-
.style5 ul.top-submenu > li {
+
-
  margin: 0px;
+
-
  padding: 5px 10px;
+
-
  background: #fff transparent;
+
-
 
+
-
  color: #fff;
+
-
  white-space: nowrap;
+
-
 
+
-
}
+
-
 
+
-
.style5 ul.top-submenu > li a {
+
-
  margin: 0px;
+
-
  padding: 5px 10px;
+
-
  background: #fff transparent;
+
-
 
+
-
  color: #fff;
+
-
  white-space: nowrap;
+
-
 
+
-
}
+
-
 
+
-
.style5 ul.top-submenu > li.hover {
+
-
  background: #000 ;
+
-
  color: #fff;
+
-
 
+
-
}
+
-
 
+
-
.style5 ul.top-submenu > li a:hover {
+
-
  background: #000 ;
+
-
  color: #fff;
+
-
 
+
-
}
+
-
 
+
-
 
+
-
/* Wiki Hacks - START */
+
-
/* Author: Pieter van Boheemen */
+
-
/* Team: TU Delft */
+
-
 
+
-
#globalWrapper { background-color: transparent; border: none; margin: 0; padding: 0; width: 100%; height:100%;}
+
-
 
+
-
#content { background-color: transparent; border: none; padding: 0; margin: 0; width: 100%; overflow: hidden; height:100%;}
+
-
 
+
-
#bodyContent { border: none; padding:0; margin:0; width:100%; height:100%;}
+
-
 
+
-
#top-section { height: 0px; margin: 0px; margin-left: auto; margin-right: auto; margin-bottom: 0 !important;
+
-
padding:0; border: none; font-size: 10px}
+
-
 
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-
#p-logo { height:1px; overflow:hidden; display: none;}
+
-
 
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-
#search-controls { overflow:hidden; display:block; background: none; position: absolute; top: 100px; right: 40px;}
+
-
 
+
-
/*
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-
.left-menu { width: 500px !important; display:block; margin-top:-80px; border: none; text-align: right;}
+
-
.left-menu ul { border: none; }
+
-
#menubar.right-menu { width:300px; display:block; float:left; margin-top:-80px; border: none;}
+
-
.right-menu ul { border: none; width: 300px;}
+
-
*/
+
-
 
+
-
#footer-box { background-image: url(http://www.genobiotec2011.org/iGEMwiki/images/back.jpg); background-color: #000000; width: 100%; margin: -10px; padding: 20px 0; display: none;}
+
-
 
+
-
.visualClear { display: none; }
+
-
 
+
-
#search-controls { display:none; }
+
-
 
+
-
h3#siteSub { display: none;}
+
-
#contentSub {display: none;}
+
-
//p:first-child { display: none;}
+
-
 
+
-
 
+
-
#footer { border: none; width: 965px; margin: 0 auto; padding: 0;}
+
-
.firstHeading { display: none;}
+
-
#f-list a { color: #333; font-size: 10px;}
+
-
#f-list a:hover { color: #666; height: 100px;}
+
-
.printfooter { display: none; }
+
-
#footer ul { margin: 0; padding: 0;}
+
-
#footer ul li { margin-top: 0; margin-bottom: 0; margin-left: 10px; margin-right: 10px; padding: 0;}
+
-
/* Wiki Hacks - END */
+
-
 
+
-
 
+
-
body {
+
-
margin: 0;
+
-
padding: 0;
+
-
color: #333;
+
-
font-family: tahoma, arial;
+
-
font-size: 10px;
+
-
background-color: #333;
+
-
background-image: url(http://www.genobiotec2011.org/iGEMwiki/images/back.jpg);
+
-
}
+
-
 
+
-
a {
+
-
color: #fff;
+
-
text-decoration: none;
+
-
font-size: 10px;
+
-
}
+
-
 
+
-
/* float clearing for IE6 */
+
-
* html .clearfix{
+
-
  height: 1%;
+
-
  overflow: visible;
+
-
}
+
-
 
+
-
/* float clearing for IE7 */
+
-
*+html .clearfix{
+
-
  min-height: 1%;
+
-
}
+
-
 
+
-
/* float clearing for everyone else */
+
-
.clearfix:after{
+
-
clear: both;
+
-
content: ".";
+
-
display: block;
+
-
height: 0;
+
-
visibility: hidden;
+
-
font-size: 0;
+
-
color: #066;
+
-
}
+
-
 
+
-
ul.top-menu-main {
+
-
  margin: auto;
+
-
  width: 800px;
+
-
}
+
-
 
+
-
ul.top-menu-main > li {
+
-
  margin: 0 10px;
+
-
}
+
-
 
+
-
.top-menu {
+
-
  font-family: "Arial Narrow", Georgia, Tahoma, arial;
+
-
  text-transform: uppercase;
+
-
  font-size: 14px;
+
-
  font-weight: bold;
+
-
  background: #fff;
+
-
  height: 37px;
+
-
  border-bottom: 1px solid #333;
+
-
}
+
-
 
+
-
.header {
+
-
width: 964px;
+
-
height: 203px;
+
-
margin: auto;
+
-
-moz-box-shadow: 0 0 8px #777;
+
-
-webkit-box-shadow: 0 0 8px #777;
+
-
box-shadow: 0 -5px 10px #777;
+
-
z-index: 0;
+
-
}
+
-
 
+
-
.content {
+
-
width: 964px;
+
-
margin: auto;
+
-
background-color: #FFF;
+
-
font-size: 12px;
+
-
z-index: 10;
+
-
text-align: center;
+
-
padding-bottom: 10px;
+
-
}
+
-
 
+
-
 
+
-
.content3 {
+
-
width: 950px;
+
-
margin: auto;
+
-
font-size: 10px;
+
-
border-bottom-color: #0C0;
+
-
color: #FFF;
+
-
text-align: center;
+
-
padding-top: 5px;
+
-
padding-right: 0px;
+
-
padding-bottom: 0;
+
-
padding-left: 0px;
+
-
}
+
-
 
+
-
.content .main {
+
-
padding-top: 0px;
+
-
padding-right: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
}
+
-
 
+
-
.donate {
+
-
  padding: 5px;
+
-
  background: #cfcfcf;
+
-
  color: #333;
+
-
  -webkit-border-radius: 5px;
+
-
  -moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
 
+
-
}
+
-
.donate > div {
+
-
  padding: 10px;
+
-
  position: relative; float: left; width : 700px;
+
-
  font-style: italic;
+
-
}
+
-
 
+
-
.s-menu {
+
-
margin: 0;
+
-
padding: 0;
+
-
margin-top: 20px;
+
-
color: #036;
+
-
  text-decoration: none;
+
-
}
+
-
 
+
-
.s-menu li {
+
-
  text-decoration: none;
+
-
list-style-type: none;
+
-
width: 100px;
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
  -webkit-border-radius: 5px;
+
-
  -moz-border-radius: 5px;
+
-
  border-radius: 5px;
+
-
  cursor: pointer;
+
-
  text-align: center;
+
-
width: 180px;
+
-
}
+
-
 
+
-
.s-menu li.last {
+
-
background: #cfcfcf;
+
-
color: #000;
+
-
text-align: center;
+
-
list-style-type: none;
+
-
}
+
-
 
+
-
.s-menu li:hover {
+
-
background: #cfcfcf;
+
-
color: #000;
+
-
text-align: center;
+
-
list-style-type: none;
+
-
}
+
-
 
+
-
.s-menu li a {
+
-
list-style-type: none;
+
-
width: 100px;
+
-
padding-top: 10px;
+
-
padding-bottom: 10px;
+
-
padding-left: 10px;
+
-
padding-right: 10px;
+
-
margin: 2px;
+
-
-webkit-border-radius: 5px;
+
-
-moz-border-radius: 5px;
+
-
border-radius: 5px;
+
-
cursor: pointer;
+
-
text-align: center;
+
-
color: #036;
+
-
font-size: 12px;
+
-
 
+
-
 
+
-
}
+
-
.s-menu li:hover a {
+
-
background: #cfcfcf;
+
-
color: #000;
+
-
text-align: center;
+
-
font-size: 12px;
+
-
}
+
-
 
+
-
 
+
-
 
+
-
.col-1-3 {
+
-
width: 200;
+
-
/*margin-right: 2%;*/
+
-
position: relative;
+
-
float: right;
+
-
font-size: 12px;
+
-
color: #FFF;
+
-
font-weight: bold;
+
-
text-decoration: none;
+
-
 
+
-
 
+
-
+
-
}
+
-
 
+
-
 
+
-
 
+
-
 
+
-
.sidebar1 {
+
-
float: left;
+
-
width: 180px;
+
-
background: #EADCAE;
+
-
padding-bottom: 10px;
+
-
}
+
-
 
+
-
.sidebar2 {
+
-
float: right;
+
-
width: 180px;
+
-
background: #EADCAE;
+
-
padding-bottom: 10px;
+
-
}
+
-
.content .main .clearfix .content2 {
+
-
text-align: justify;
+
-
width: 750px;
+
-
font-size: 14px;
+
-
border-left-color: #000;
+
-
}
+
-
.content .main .clearfix .content2 title {
+
-
font-size: 20px;
+
-
}
+
-
 
+
-
 
+
-
#footer-leftColumn {
+
-
float:left;
+
-
width:317px;
+
-
padding-left: 0px;
+
-
text-align: left;
+
-
padding-top: 0;
+
-
padding-right: 0;
+
-
padding-bottom: 0;
+
-
}
+
-
 
+
-
#footer-middleColumn {
+
-
float:left;
+
-
width:330px;
+
-
padding-left: 0px;
+
-
text-align: center;
+
-
padding-top: 0;
+
-
padding-right: 0;
+
-
padding-bottom: 0;
+
-
}
+
-
 
+
-
#footer-rightColumn {
+
-
float:right;
+
-
width:260px;
+
-
padding-left: 0px;
+
-
text-align: right;
+
-
padding-top: 0;
+
-
padding-right: 0;
+
-
padding-bottom: 0;
+
-
font-family: tahoma, arial;
+
-
}
+
-
 
+
-
#twitter-box {
+
-
text-align:center;
+
-
width: 200px;
+
-
 
+
-
}
+
-
 
+
-
#clustrmaps-widget {
+
-
text-align:center;
+
-
width:200px;
+
-
padding-left: 50px;
+
-
}
+
-
 
+
-
#leftColumn {
+
-
float:left;
+
-
width:700px;
+
-
text-align: justify;
+
-
padding-top: 10px;
+
-
padding-right: 0px;
+
-
padding-bottom: 0px;
+
-
padding-left: 0px;
+
-
font-size: 15px;
+
-
font-family: Arial;
+
-
}
+
-
 
+
-
#rightColumn {
+
-
float:right;
+
-
width:200px;
+
-
text-align: center;
+
-
padding-top: 5px;
+
-
position: relative;
+
-
}
+
-
 
+
-
#social-div {
+
-
text-align: right;
+
-
float:right;
+
-
}
+
-
 
+
-
#twitter-top {
+
-
text-align: right;
+
-
+
-
}
+
-
 
+
-
#footer-middleColumn a {
+
-
color: #ffffff;
+
-
text-decoration:underline;
+
-
font-weight:bolder;
+
-
}
+
-
 
+
-
#youtube-frame {
+
-
text-align:center;
+
-
+
-
}
+
-
 
+
-
#leftColumn1 {
+
-
+
-
}
+
-
 
+
-
#ColorHeader {
+
-
background-color:#FFF;
+
-
color: #333;
+
-
padding-top: 5;
+
-
padding-right: 5;
+
-
padding-bottom: 5;
+
-
padding-left: 5;
+
-
font-family: "Arial Black";
+
-
font-size: 30px;
+
-
}
+
-
 
+
-
#project-column p {
+
-
background-color:#FFF;
+
-
color:#000;
+
-
font: Tahoma;
+
-
font-size: 14px;
+
-
}
+
-
 
+
-
#project-column {
+
-
width:340px;
+
-
padding-top: 15;
+
-
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
   <title>Team: UANL_Mty-Mexico</title>
   <title>Team: UANL_Mty-Mexico</title>
    
    
-
  <script type='text/javascript' src='http://www.genobiotec2011.org/iGEMwiki/jquery.easing.1.3.js'></script>
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<META NAME="keywords" CONTENT="UANL,iGEM,Universidad,Autonoma,Nuevo,Leon,Biphasic,switch,Lambda,Genetic,Regulation,Quorum,Sensing,pRM,OL,Green Light,Red Light">
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<META NAME="description" CONTENT="iGEM-UANL is the representative team from Universidad Autonoma de Nuevo León, at Monterrey, México. This team is composed of ten students who spent their summer in the lab, having fun with transformations, constructions and plasmidic DNA extractions. This">
 +
<META NAME="abstract" CONTENT="Information processing through living things remains a challenge to science. Genetic logic-gates and">
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<META NAME="author" CONTENT="iGEM-UANL">
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margin: auto;
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   <script type="text/javascript">  
   <script type="text/javascript">  
Line 934: Line 56:
   </script>  
   </script>  
 +
</head>
 +
<body>
-
</head>
 
 +
<div class="content">
 +
  <div class="main" style="width:930px">
 +
  <!--<div style="width:900px">-->
 +
         
 +
    <div id="leftColumn">
 +
    <div id="ColorHeader">
 +
            Contributions: Light Machine
 +
    </div>
 +
<div class="br"></div><div class="br"></div>
 +
<div class="br"></div><div class="br"></div>
 +
      <div id="header-project-column">
 +
      <div class="br2"></div>
 +
<div class="br2"></div>
 +
<div class="br2"></div>
 +
        <a name="Construction"></a>Construction
 +
        <div class="br2"></div>
 +
<div class="br2"></div>
 +
<div class="br2"></div>
 +
      </div>
 +
<p>This page explains extensively how to build a "Light Machine".</p>
 +
<div class="br"></div>
 +
<span class="subtitle"><a name="Overview"></a>Overview of the "Light Machine"</span>
 +
<p>We built a special machine that allows us to properly excite both photoreceptors (CcaS/CcaR and Cph8) independently/simultaneously using specific wavelengths of 535 and 650 nm, respectively. This "Light Machine" was based mainly on previous publications that work with light <a href="#References" class="references-link">[1][2][3]</a>.
 +
</p>
 +
<center>
 +
<div class = "img-holder" style="width:640px" align="center">
 +
<a href="https://static.igem.org/mediawiki/2011/2/26/OverviewPIC-small.jpg" rel="lightbox" title="
 +
<b>Light Machine Diagram. </b>">
 +
<img src="https://static.igem.org/mediawiki/2011/2/23/OverviewPIC.JPG"width="640" height="426" alt="Light Machine Figure 3" align="center"></a>
 +
<div class="br"></div>
 +
<span class="img-holder-text"><b>Light Machine overview.</b></span>
 +
</div>
 +
</center>
 +
<div class="br"></div>
 +
 +
<span class="subtitle"><a name="Materials"></a>Materials</span>
 +
<div class="br"></div>
 +
<ul>
 +
<li>
 +
Two 100 W halogen lamp (Philips)
 +
</li>
 +
<li>
 +
Green and Red bandpass interference filters
 +
</li> 
 +
<div class="br"></div>
-
<body>
+
<div class="notes">
 +
*We got ours from <a href="http://www.edmundoptics.com" title="Edmund Optics Web Page" target="_new">Edmunds Optics</a>.
 +
<div class="br"></div>
-
<div class="header"><span class="header1">
+
<div class="notes">
-
 
+
<b>Description:</b> Interference Bandpass Filter 535nm ±2, 25mm Catalog Number: <a href="http://www.edmundoptics.com/products/displayproduct.cfm?productid=3196&showall#products" title="Edmund Optics Catalog" target="_new">NT65-700</a>.  
-
  <img src="banners/LightMachine-2.jpg" alt="Light Machine banner" width="964" height="203" border="0" usemap="#map">
+
<div class="br"></div>
-
    <map name="map">
+
-
      <area shape="rect" coords="0,0,69,55" href="https://2011.igem.org/Main_Page" target="_new" alt="iGEM-logo" title="Go to the iGEM 2011 Wiki Main Page">  
+
-
      <area shape="rect" coords="767,1,958,142" href="https://2011.igem.org/Team:UANL_Mty-Mexico" title="Go to iGEM-UANL Main Page">
+
-
  </map>
+
-
       
+
-
</span>
+
</div>
</div>
 +
<div class="notes">
 +
And Interference Bandpass Filter 650nm ±2, 25mm Catalog Number: <a href="http://www.edmundoptics.com/products/displayproduct.cfm?productid=3196&showall#products" title="Edmund Optics Catalog" target="_new">NT65-715</a>
 +
</div>
 +
</div>
 +
<div class="br"></div>
-
  <div class="top-menu style4">
+
<li>
 +
37°C incubator with thermometer hole on top
 +
</li>
 +
<li>
 +
Adjustable shelves
 +
</li>
 +
<li>
 +
Two Support Stands/Clamps
 +
</li>
 +
<li>
 +
Two Emitter-Receptor Pieces
 +
</li>
 +
<li>
 +
T-45° Block
 +
</li>
 +
<li>
 +
Aluminum tubes (33 mm X 180 mm & 33 mm X 90 mm) mirror like finish inside
 +
</li>
 +
<li>
 +
Two mirrors 50 mm X 50 mm
 +
</li>
 +
<li>
 +
Two porcelain sockets T4 base
 +
</li>
 +
<li>
 +
2  Small Fans
 +
</li>
 +
</ul>
 +
<center>
 +
<div class = "img-holder" style="width:450px">
 +
<a href="https://static.igem.org/mediawiki/2011/4/46/Incubahole-small.jpg" rel="lightbox" title="
 +
<b>Picture from the inside of LightMachine</b>">
 +
<img src="https://static.igem.org/mediawiki/2011/0/05/Incubhole.JPG"width="450" height="256" alt="Photometer" align="center"></a>
 +
<div class="br"></div>  
-
    <ul class="top-menu-main">
+
<span class="img-holder-text"><b>Picture from the inside of LightMachine</b></span>
 +
</div>
 +
</center>
-
   
 
-
      <li class="first">
 
-
        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico" class="menu-item-text">Home</a>
 
-
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-
     
 
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-
          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/Applications">Applications</a></li>
 
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/Circuit">Circuit</a></li>
 
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/Mechanism">Mechanism</a></li>
 
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/The_Code">The Code</a></li>
 
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/Overview">Overview</a></li>
 
-
        </ul>
 
-
        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Project/Overview" class="menu-item-text">Project</a>
 
-
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+
<div class="br"></div>    
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<div id="header-project-column">
-
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<div class="br2"></div>  
-
          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Wet_lab/Parts">Parts</a></li>
+
<div class="br2"></div>  
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Wet_lab/Light_experiments">Light Experiments</a></li>
+
<div class="br2"></div>
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Wet_lab/Constructions">Constructions</a></li>
+
        <a name="EmitterReceptor"></a>
 +
        How to make Emitter–Receptor pieces and T-45° Block
 +
<div class="br2"></div>  
 +
<div class="br2"></div>
 +
<div class="br2"></div>  
 +
</div>
 +
<div class="br2"></div>
 +
<div class="br2"></div>
 +
<div class="br2"></div>
 +
<center>
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Wet_lab/Overview">Overview</a></li>
+
<div class = "img-holder" style="width:300px; float:left; text-align:center">
-
        </ul>    
+
<a href="https://static.igem.org/mediawiki/2011/8/89/Emisor.png" rel="lightbox" title="
-
        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Wet_lab/Overview" class="menu-item-text">Wet lab</a>
+
<b>Emitter.</b> 100% aluminium.">
-
      </li>
+
<img src="https://static.igem.org/mediawiki/2011/8/89/Emisor.png"width="279" height="251" alt="Emitter" align="center">
 +
</a>
 +
<div class="br"></div> 
 +
<span class="img-holder-text"><b>Emitter.</b> 100% aluminium</span>
 +
</div>
-
      <li class="">
+
<div class = "img-holder" style="width:300px; float:right; text-align:center">
-
        <ul class="top-submenu">
+
<a href="https://static.igem.org/mediawiki/2011/0/09/Foco.png" rel="lightbox" title="<b>Emitter with porcelain socket and halogen bulb.</b>">
-
          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Modelling/Parameters">Parameters</a></li>
+
<img src="https://static.igem.org/mediawiki/2011/0/09/Foco.png"width="278" height="251" alt="Emitter" align="center">
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Modelling/Simulations">Simulations</a></li>
+
</a>
 +
<div class="br"></div> 
 +
<span class="img-holder-text"><b>Emitter with porcelain socket and halogen bulb.</b></span>
 +
</div>
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Modelling/Background">Background</a></li>
 
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Modelling/Overview">Overview</a></li>
 
-
        </ul>
 
-
        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Modelling/Overview" class="menu-item-text">Modelling</a>
 
-
      </li>   
 
-
      <li class="">
+
<div class = "img-holder" style="width:300px; float:right; text-align:center">
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        <ul class="top-submenu">
+
<a href="https://static.igem.org/mediawiki/2011/1/18/T45-small.jpg" rel="lightbox" title="
-
          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Achievements/Parts">Parts</a></li>
+
<b>T 45 block.</b> In wood and aluminum."><img src="https://static.igem.org/mediawiki/2011/1/14/T45.png"width="294" height="126" alt="Emitter" align="center">
 +
</a>
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Achievements/UANLBricks">UANLBricks</a></li>
+
<div class="br"></div> 
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Achievements/Light_Machine">Light Machine</a></li>
+
<span class="img-holder-text" style="text-align:justify"><b>T 45 block.</b> In wood and aluminum</span>
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Achievements/Photochassis">Photochassis</a></li>
+
</div>
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        </ul>
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<div class="br"></div>
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        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Achievements/Overview" class="menu-item-text">Contributions</a>
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<div class = "img-holder" style="width:300px; float:left; text-align:center">
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      </li>
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  <a href="https://static.igem.org/mediawiki/2011/8/86/Receptor.png" rel="lightbox" title="<b>Receptor.</b> Aluminium 100%.">
-
     
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  <img src="https://static.igem.org/mediawiki/2011/8/86/Receptor.png"width="284" height="255" alt="Emitter" align="center">
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      <li class="">
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  </a>
 +
  <div class="br"></div>
 +
<span class="img-holder-text"><b>Receptor.</b> 100% Aluminium</span>
 +
</div>
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        <ul class="top-submenu">
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</center>
 +
<div class="br"></div>  
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          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Human_Practices/Safety">Safety</a></li>
+
<span class="subtitle">Distance overview of "Light Machine"</span>
-
          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Human_Practices/iGEM-Lighters">iGEM Lighters</a></li>
+
<div class="br"></div>
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          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Human_Practices/Collaboration">Collaboration</a></li>
+
-
          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Human_Practices/Bio_Blog">Bio! Blog</a></li>
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        </ul>
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        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Human_Practices" class="menu-item-text">Human Practices</a>
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<div class="br"></div> 
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<div class="br"></div>
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      </li>
 
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      <li class="">
 
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        <ul class="top-submenu">
 
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          <li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Team/Gallery">Gallery</a></li>
 
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          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Team/Hometown">Hometown</a>
 
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          <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Team/Logo">Logo</a></li>
 
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          <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Team/Members">Members</a></li>
+
<center>
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        </ul>
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<div class = "img-holder" style="width:650px">  
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        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Team" class="menu-item-text">Team</a>
+
<a href="https://static.igem.org/mediawiki/2011/7/75/Overview-small.jpg" rel="lightbox" title="
 +
<b>Light Machine Diagram. </b>">
 +
<img src="https://static.igem.org/mediawiki/2011/5/59/Overview.png"width="632" height="422" alt="Light Machine Figure 3" align="center"></a>
 +
<span class="img-holder-text"><b>Light Machine Diagram.</b></span>
 +
</div>
 +
</center>
-
      </li> 
 
-
      <li class="last">
 
-
        <ul class="top-submenu">
 
-
<li class="last"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Notebook/In_silico">In silico</a></li>
 
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            <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Notebook/Protocols">Protocols</a></li>
+
<span class="subtitle"><a name="Instructions"></a>Instructions</span>
-
            <li class=""><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Notebook/Blueprints">Blueprints</a></li>
+
<div class="br"></div> 
-
            <li class="first"><a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Notebook/Timeline">Timeline</a></li>
+
<ul> 
-
        </ul>
+
<li>
-
        <a href="https://2011.igem.org/Team:UANL_Mty-Mexico/Notebook/Overview" class="menu-item-text">Notebook</a>
+
First of all, collect or make all the materials shown above
-
      </li>
+
</li>
-
    </ul>
+
<li>
 +
Wallpaper completely the inside of the incubator with black paper.
 +
</li>
 +
<li>
 +
Clear the thermometer hole in the top of incubator such that light can pass through.
 +
</li>
 +
<li>
 +
Place the T-45° Block at the top of the incubator on the thermometer hole and fix it with a plastic ring.
 +
</li>
 +
<li>
 +
Place two mirrors on T-45°Block.
 +
</li>
 +
<li>
 +
Immobilize the bandpass filter inside a plastic 1' coupling with small plastic ring.
 +
</li>
 +
<li>
 +
Join the desired coupling to the small aluminum pipe of T-45° Block.
 +
</li>
 +
<li>
 +
Immobilize the emitter-receptor pieces at both sides of incubator, we use adjustable shelves.
 +
</li>
 +
<li>
 +
Join the aluminum tube to the Emitter-Receptor.
 +
</li>
 +
<li>
 +
Leave proper distance (two finger rule) between coupling and aluminum pipe.
 +
</li>
 +
<li>
 +
Immobilize aluminum tubes with support stands.
 +
</li>
 +
<li>
 +
Place the aluminum tube in Emitter-Receptor piece and place the pipes parallel to the T-45° Block.
 +
</li>
 +
<li>
 +
Turn on the lamps; adjust the positioning of mirrors such that a clear and homogeneous light pattern appears in the center of your incubator.
 +
</li>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<b>Notes:</b>
 +
<ul>
 +
<i>
 +
<div class="br"></div>
 +
<li>Have fans near Aluminum Pieces, they become very hot over time, prevents halogen lamp and filter fails.
 +
<div class="br"></div>
 +
<li>
 +
Our incubator has a 1 3/4' hole.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
When placing T-45° Block ensure to cover all light penetrable areas.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
Buy more than 2 halogen lamps; they break easily.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
Be careful when handling the halogen lamps, they heat in a very short time.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
We bought 4 BP filters 532, 575, 650, 710 nm respectively.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
Make experiments in dark room.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
Clean mirrors when possible.
 +
<div class="br"></div>
 +
</li>
 +
<li>
 +
Measure light intensity before starting test.
 +
</li>
 +
<div class="br"></div>
 +
</i>
 +
</ul>
 +
</ul>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
 +
<div class="br"></div>
-
</div>
 
-
 
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<div id="header-project-column">
-
 
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<div class="br2"></div>  
-
<div class="content">
+
<div class="br2"></div>  
-
  <div class="main" style="width:930px">
+
<div class="br2"></div>  
-
  <!--<div style="width:900px">-->
+
        <a name="Measurements"></a>Light Intensities Measurements
-
    <div class="br2"></div><div class="br2"></div><div class="br2"></div>           
+
        <div class="br2"></div>  
-
    <div id="leftColumn">
+
<div class="br2"></div>  
-
    <div id="ColorHeader">
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<div class="br2"></div>  
-
            Contributions: Light Machine
+
-
    </div>
+
-
 
+
-
<div class="br"></div><div class="br"></div>
+
-
<div class="br"></div><div class="br"></div>
+
-
      <div id="header-project-column">
+
-
<div class="br2"></div><div class="br2"></div><div class="br2"></div><div class="br2"></div> <div class="br2"></div>           
+
-
          <a name="Background"></a>Background
+
-
          <div class="br2"></div><div class="br2"></div><div class="br2"></div><div class="br2"></div> <div class="br2"></div>          
+
       </div>
       </div>
-
<p>
 
-
Photobiological processes have been relevant in nature because they are found in plants, algae, cyanobacteria among other organisms that use light as an energy source, protection against radiation damage, regulatory and signaling systems, these organisms possess single/multiple photoreceptors, allowing them to adapt to their environment depending on the light. <sup>1,4, 5</sup></p>
 
-
<p>Light is absorbed by specific chromophores, which are tuned, by their proteinaceous and external environment, to function optimally. All chromophores belong to three classes: tetrapyrroles, polyenes and aromatics. The chemical structure of photosensing pigment/protein complexes has been resolved for many of photobiological processes that have characteristic sensitivity in the visible and infrared part of the spectrum.<sup>5,7</sup></p>
 
-
<p>Under the tetrapyrroles class, are located the Phytochromes and Cyanobacteriochromes  (bacteria-specific relative of the Phytochromes), which are used by Escherichia coli JT2 strain, red and green light-sensitive transcription system based on a red/far-red chimeric cyanobacterial phytochrome Cph1 and the E. coli EnvZ/OmpR component signaling pathway, plus the green/red CcaS cyanobacteriochrome and its response regulator CcaR.<sup>1</sup></p>
+
<p>Before starting making measurements it is necessary to understand the following concepts:</p>
-
<p>Phytochromes are photoreceptors that typically perceive a specific wavelength in the visible/Infrared spectrum, regulate a wide range of physiological responses to light quality, quantity, duration, and direction. Cph8 and CcaS/CcaR exhibit reversible photoconversion two spectrally distinct forms, an active absorbing form and an inactive absorbing form respectively in their specific wavelengths. <sup>5,6</sup></p>  
+
<p><b>Radiometry:</b> is the measurement of optical radiation from a physical point of view, includes the regions commonly called the ultraviolet, the visible and the infrared. Two out of many typical units encountered are Watt and Joule.</p>
 +
<p> <b>Photometry:</b> is the measurement of visible light, which is detectable by the human eye. These measurements tend to be subjective.  Typical photometric units include lumens, lux and candelas.</p>
 +
<p>Photometry is almost the same as radiometry, except that radiometry includes the entire optical radiation spectrum, while photometry is limited to the visible spectrum as defined by the response of the eye<a href="#References" class="references-link">[4][6]</a>.</p>
 +
<p><b>Irradiance</b> (a.k.a. flux density) is a SI derived unit and is measured in W/m2. Irradiance is power per unit area incident from all directions in a hemisphere onto a surface that coincides with the base of that hemisphere.</p>
 +
<p><b>Illuminance</b> (a.k.a. luminous flux density) is another SI unit and is measured in lux. Illuminance is the total luminous flux incident on a surface per unit area. (Is the photometric equivalent of irradiance)<a href="#References" class="references-link">[5]</a>.</p>
 +
<p>**In a few words you need to measure in photometric units (lux) and convert them to radiometric units (W/m<sup>2</sup>) or measure directly in W/m<sup>2</sup></p>
 +
<p>There are two typical kinds of devices to measure light intensities once having assembled the "Light Machine":</p>
 +
<p><b>Photometer</b> - is an instrument for measuring Illuminance (Photometric units), then this value will be converted into Irradiance (W/m2). </p>
 +
<p>**Cheaper measurement device and works properly.</p>
-
<p>These two Phytochromes use the same phycocyanobilin chromophore (PCB) that binds at a conserved cysteine within an N-terminal GAF (cyclic GMP phosphodiesterase, adenylyl cyclase, FhlA) domain and imparts reversible photoactivation of signaling activity with maximal responses to 535 nm for green and 672 nm for red photoreceptor respectively.<sup>1</sup></p>
+
</center>
 +
<div class="br"></div>  
-
<div class="br"></div>
+
<center>
-
<div class="br"></div>
+
<div class = "img-holder" style="width:330px">  
-
     
+
<a href="https://static.igem.org/mediawiki/2011/8/8f/Photometer.jpg" rel="lightbox" title="
-
<div id="header-project-column">
+
<b>Spectrometer. </b>">
-
<div class="br2"></div><div class="br2"></div><div class="br2"></div><div class="br2"></div> <div class="br2"></div>          
+
<img src="https://static.igem.org/mediawiki/2011/8/8f/Photometer.jpg"width="329" height="275" alt="Photometer" align="center"></a>
-
        <a name="Construction"></a>Construction
+
<span class="img-holder-text"><b>Photometer.</b></span>
-
        <div class="br2"></div>  
+
</div>
-
    </div>
+
</center>
-
<div class="br2"></div>
+
<p><b>Spectrometer</b> – is an instrument for measuring Irradiance. </p>
-
 
+
<p>**Is the device that has everything but it costs much more</p>
-
<p>This section explains extensively how to build a Light Machine!</p>
+
-
<b>Overview of Light Machine</b>
+
<center>
<center>
-
<div class = "img-holder" style="width:686px; font-size: 18px;">  
+
<div class = "img-holder" style="width:330px">
-
<img src="http://www.genobiotec2011.org/iGEMwiki/images/LightMachine-1.jpg"width="686px" height="320px" alt="Light Machien Figure 1" align="center">
+
<a href="https://static.igem.org/mediawiki/2011/b/b3/Spectrometer.jpg" rel="lightbox" title="
 +
<b>Spectrometer. </b>">
 +
<img src="https://static.igem.org/mediawiki/2011/b/b3/Spectrometer.jpg"width="329" height="275" alt="Spectrometer" align="center"></a>
 +
<span class="img-holder-text"><b>Spectrometer.</b></span>
</div>
</div>
</center>
</center>
-
<p>We built a special machine that allows us to properly excite both photoreceptors (CcaS/CcaR and Cph8) independently/simultaneously using specific wavelength of 535 and 650 nm.</p>
 
-
<p>This "Light Machine" was based mainly on previous publications that work with light <sup>1,2,3</sup>
 
-
</p>
 
-
<b>Materials</b>
+
<span class="subtitle">Determining light Intensities</span>
-
<ul><li>Two 100 W halogen lamp (Philips)</li>
+
<p>The intensity of light was measured in lux units, lumens per square meter using an Easy View Light Meter (Model EA31) calibrated photometer, which later were converted to power units of Watts per square meter.</p>
-
<li>Green and Red bandpass interference filters</li>
+
<p>The light beam was divided into zones, which underwent an average of intensities in the X, Y-axis to determine the intensity of that area. Intensity averages were calculated before each test. Samples were placed in the zone that better fits the desired intensity.</p>
 +
<p>The Bandpass interference filters have a 10 nm transmission window with a peak at the emission wavelength.  Precise light wavelengths and intensities are very important to achieve the desired response of photoreceptors.</p>
-
<ul><b>**</b><i>We get ours from Edmunds Optics.
+
<span class="subtitle"><a name="Conversions"></a>How to convert to from lux to W/m2</span>
-
Description: Interference Bandpass Filter 535nm 25mm Catalog Number: NT65-700. </i>
+
<p>Radiometric and photometric units can be converted into each other<a href="#References" class="references-link">[6]</a>. Several factors, such as wavelength and mono/multicromatic light source must be take into account.</p>
-
<div class="br"></div>
+
<p>The conversion between photometric and radiometric units, for a monochromatic light source, is given by the following equation:</p>
-
<a href="http://www.edmundoptics.com/products/displayproduct.cfm?productid=3196&showall#products">http://www.edmundoptics.com/products/displayproduct.cfm?productid=3196&showall#products</a>
+
-
<div class="br"></div>
+
-
<i>And Interference Bandpass Filter 650nm 25mm Catalog Number: NT65-715</i>
+
-
<div class="br"></div>
+
-
<a href="http://www.edmundoptics.com/products/displayproduct.cfm?productid=3197&showall#products">http://www.edmundoptics.com/products/displayproduct.cfm?productid=3197&showall#products</a>
+
-
</ul>
+
-
<div class="br"></div>
+
-
<li>37°C incubator with thermometer hole on top</li>
+
-
<li>Adjustable shelves</li>
+
-
<li>Two Support Stands/Clamps</li>
+
-
<li>Two Emisor-Receptor Pieces</li>
+
-
<li>T-45° Block</li>
+
-
<li>Aluminum tubes (33 mm*180 mm & 33 mm*90 mm)< mirror like finish inside</li>
+
-
<li>Two mirrors 50 mm*50 mm</li>
+
-
<li>Two porcelain sockets T4 base</li>
+
-
<li>2  Small Fans</li>
+
-
</ul>
+
-
+
 +
<center><p><b>K(λ) = K<sub>m</sub>*V(λ)</b></p></center>
 +
<p>Where:</p>
 +
<p>K(λ) - Radiant flux (lm/W)</p>
 +
<p>V(λ) - Photo tropic spectra  luminous efficiency function. Corresponds to the sensitivity of the human eye and its function of the wavelength of light (Fig 2 Appendix B)<a href="#References" class="references-link">[6]</a></p>
 +
<p>K<sub>m</sub> – Scaling Factor: 683 lm/W</p>
 +
<i><p>**Remember that this formula is effective only for monochromatic light sources (Multicromatic light sources are a bit more complicated).</p>
 +
 +
<p>**Observe measurement device modality (Photopic or Scotopic)**</p>
 +
<p>&nbsp;</p></i>
 +
<p>Example of conversion from photometric to radiometric units for a 532 nm wavelength:</p>
 +
<p>K(λ) = K<sub>m</sub>* V(λ)</p>
 +
<p>K(532 nm) = 683 lm/W *V(532nm)</p>
 +
<p>K(532 nm) = 683 lm/W * 0.862</p>
 +
<p>K(532 nm) = 588.746 lm/W</p>
 +
<p>&nbsp;</p>
 +
<p>1 W = 588.76 lm @ 532 nm</p>
 +
 +
<p>1 W/m2 = 588.79 lm/m<sup>2</sup> ; 1 lux = 1 lm/m<sup>2</sup></p>
 +
<p>1 lux = 1/588.79 W/m<sup>2</sup> = 1.69 mW/m<sup>2</sup> @ 532 nm</p>
 +
<i><p>Now calculate your respective intensities for your experiment.</p></i>
-
<div class="br"></div>
 
-
<div class="br"></div>
 
-
<center>
+
<div class = "img-holder" style="width:250px; float:left; text-align:center">
-
<div class = "img-holder" style="width:686px; font-size: 18px;">  
+
<a href="https://static.igem.org/mediawiki/2011/e/e9/532.jpg" rel="lightbox" title="
-
<img src="http://www.genobiotec2011.org/iGEMwiki/images/LightMachine-2.jpg"width="686px" height="320px" alt="Light Machien Figure 2" align="center">
+
<b>Correlation W/m2 to Lux @532nm</b>">
 +
<img src="https://static.igem.org/mediawiki/2011/9/9f/532_copia.jpg"width="250" height="147" alt="Emitter" align="left">
 +
</a>
 +
<div class="br"></div> 
 +
<span class="img-holder-text"><b>Correlation W/m2 to Lux @532nm</b></span>
</div>
</div>
-
</center>
 
-
 
-
<div class="br"></div>
 
-
<div class="br"></div>
 
-
<div class="br"></div>
 
-
<div class="br"></div>
 
-
      <div id="header-project-column">
+
<div class = "img-holder" style="width:250px; float:right; text-align:center">
-
<div class="br2"></div><div class="br2"></div><div class="br2"></div><div class="br2"></div> <div class="br2"></div>           
+
<a href="https://static.igem.org/mediawiki/2011/4/4c/650.jpg" rel="lightbox" title="<b>Correlation W/m2 to Lux @650nm</b>">
-
        <a name="Emissor-Receptor"></a>How to make Emissor –Receptor pieces and T-45° Block
+
<img src="https://static.igem.org/mediawiki/2011/5/5c/650_copia.jpg"width="250" height="140" alt="Emitter" align="center">
-
       
+
</a>
-
<div class="br2"></div>            
+
<div class="br"></div>
-
      </div>
+
<span class="img-holder-text"><b>Correlation W/m2 to Lux @650nm</b></span>
-
<b>Distance overview of "Light Machine"</b>    
+
</div>
-
</ul>
+
<div class="br"></div>   
-
  <div class="br"></div>
+
-
  <div class="br"></div>   
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<center>
<center>
-
<div class = "img-holder" style="width:686px; font-size: 18px;">  
+
<div class = "img-holder" style="width:250px; text-align:center">
-
<img src="http://www.genobiotec2011.org/iGEMwiki/images/LightMachine-3.jpg"width="686px" height="320px" alt="Light Machien Figure 3" align="center">
+
<a href="https://static.igem.org/mediawiki/2011/e/e4/710.jpg" rel="lightbox" title="<b>Correlation W/m2 to Lux @710nm</b>">
 +
<img src="https://static.igem.org/mediawiki/2011/b/bd/710_copia.jpg"width="250" height="138" alt="Emitter" align="right">
 +
</a>
 +
<div class="br"></div> 
 +
<span class="img-holder-text"><b>Correlation W/m2 to Lux @710nm</b></span>
</div>
</div>
</center>
</center>
-
     
 
-
     
 
-
<b class="ins">Instructions</b>
 
-
<div class="br"></div>
 
-
  <div class="br"></div>
 
-
<ul><li>First of all, collect or make all the materials listed above.</li>
 
-
<li>Wallpaper completely the inside of the incubator with black paper.</li>
 
-
<li>Clear the thermometer hole in the top of incubator such that light can pass through.</li>
 
-
<li>Place the T-45° Block at the top of the incubator on the thermometer hole and fix it with a plastic ring.
 
-
Place two mirrors on T-45°Block.</li>
 
-
<li>Immobilize the bandpass filter inside a plastic 1' coupling with small plastic ring.
 
-
Join the desire coupling to the small aluminum pipe of T-45° Block.</li>
 
-
<li>Immobilize the emission-Receptor pieces at both sides of incubator, we use adjustable shelves.</li>
 
-
<li>Join aluminum tube to Emision-Receptor.</li>
 
-
<li>Leave proper distance <b>*</b> between coupling and aluminum pipe.</li>
 
-
<li>Immobilize aluminum tubes with support stands.</li>
 
-
<li>Place the aluminum tube in Emissor-Receptor piece and place the pipes parallel to the T-45° Block.</li>
 
-
</ul>
 
-
<p>Turn on the lamps; adjust the positioning of mirrors such that a clear and homogeneous light pattern appears in the center of your incubator.</p>
 
 +
<span class="subtitle">Intensity/Wavelength</span>
-
<div class="br"></div>
+
<p>The light intensity on the sample depends mainly on 3 factors:</p>
-
  <div class="br"></div>  
+
<ul>
 +
<li><b>Distance -</b> Is inversely proportional to the light output</li>
 +
<li><b>Lamp light output -</b> Depending on the type of lamp, it will produce different wavelength intensities.</li>
 +
<li>Specific Wavelength.</p>
 +
</ul>
 +
<i><p><b>Consider the light loss during the pathway.</b></p></i>
 +
<p>It is very important to have the correct intensity/wavelenght (W/m<sup>2</sup> for @ nm) for each photoreceptor, otherwise it may produce unwanted results.</p>
-
<i>
+
<center>
-
<b>*Notes</b>
+
<div class = "img-holder" style="width:612px">
-
  <div class="br"></div>  
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<a href="https://static.igem.org/mediawiki/2011/7/7a/Taborgraph.png" rel="lightbox" title="
-
      <div class="br"></div>  
+
<b>1)</b> Two-color optical control of gene expression in <i>E</i>. <i>coli</i>. Light intensity transfer functions of strains carrying each sensor alone or both sensors. Strains expressing the green sensor only CcaS/CcaR (green circles), red sensor only Cph8 (red squares), or both (gray circles) were exposed to varying intensities of 532 nm or 650 nm light. <b>2)</b> Spectral transfer functions. <i>E</i>. <i>coli</i> carrying the green or red sensor was exposed to saturating levels of a given light wavelength, and Miller assays were conducted. Figures taken from Tabor JJ <i>et al.</i> (2010) J. Mol. Biol. <b>405:</b> 315-324.
-
<b>****</b>Have fans near Aluminum Pieces they come very hot over time, prevents halogen lamp and filter fails.
+
">
-
Our incubator has a 1 3/4' hole
+
<img src="https://static.igem.org/mediawiki/2011/7/7a/Taborgraph.png"width="610" height="136" alt="Spectrometer" align="center"></a>
-
When placing T-45° Block ensure to cover all light penetrable areas.
+
-
<br/>
+
-
Buy more than 2 halogen lamps, they broke easily
+
-
Be careful handling the halogen lamps, they heat in a very short time.
+
-
<br/>
+
-
<b>*</b>Two finger rule<br/>
+
<div class="br"></div>  
<div class="br"></div>  
-
We buy 4 BP filters 532, 575, 650, 710 nm respectively
 
-
Make experiments in dark room.
 
-
Clean mirrors when possible.
 
-
Measure light intensity before starting test.
 
-
</i>
 
-
  <div class="br"></div>
 
-
      <div class="br"></div>
 
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      <div class="br"></div>
 
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<div class="br2"></div><div class="br2"></div><div class="br2"></div><div class="br2"></div> <div class="br2"></div>           
 
-
        <a name="Light-Measurements"></a>Light Intensities Measurements
 
-
       
 
-
<div class="br2"></div>       
 
-
      </div>
 
-
  <p>Before starting making measurements it is necessary to understand the following concepts:</p>
 
-
<p><b>Radiometry:</b> is the measurement of optical radiation from a physical point of view, includes the regions commonly called the ultraviolet, the visible and the infrared. Two out of many typical units encountered are Watt and Joule.</p>
 
-
<p><b>Photometry:</b> is the measurement of visible light, which is detectable by the human eye. These measurements tend to be subjective.  Typical photometric units include lumens, lux and candelas.</p>
 
-
<p>Photometry is almost the same as radiometry, except that radiometry includes the entire optical radiation spectrum, while photometry is limited to the visible spectrum as defined by the response of the eye.<sup>8,10</sup></p>
 
-
<p><b>Irradiance</b> (a.k.a. flux density) is a SI derived unit and is measured in W/m2. Irradiance is power per unit area incident from all directions in a hemisphere onto a surface that coincides with the base of that hemisphere.</p>
 
-
<p><b>Illuminance</b> (a.k.a. luminous flux density) is another SI unit and is measure in lux. Illuminance is the total luminous flux incident on a surface per unit area. (Is the photometric equivalent of irradiance).<sup>9</sup></p>
 
-
<p><b>**</b>In few words you need to measure in photometric units (lux) and convert them to radiometric units (W/m2) or measure directly in W/m2</p>
 
-
 
-
<p>To determine the light intensities once having assembled the "Light Machine", there are two types of devices to perform such tasks:</p>
 
-
<p><b>Photometer</b> - is an instrument for measuring Illuminance (Photometric units), then this value will be converted into Irradiance (W/m2).</p>
 
-
<p><b>**</b>Cheaper measurement device and works properly.</p>
 
-
 
-
<center>
 
-
<div class = "img-holder" style="width:150px; height:150px; font-size: 18px;">  
+
<span class="img-holder-text"><b>1)</b> Two-color optical control of gene expression in <i>E</i>. <i>coli</i>. Light intensity transfer functions of strains carrying each sensor alone or both sensors. Strains expressing the green sensor only CcaS/CcaR (green circles), red sensor only Cph8 (red squares), or both (gray circles) were exposed to varying intensities of 532 nm or 650 nm light. <b>2)</b> Spectral transfer functions. <i>E</i>. <i>coli</i> carrying the green or red sensor was exposed to saturating levels of a given light wavelength, and Miller assays were conducted. Figures taken from Tabor JJ <i>et al.</i> (2010) J. Mol. Biol. <b>405:</b> 315-324. </span>
-
<img src="http://www.genobiotec2011.org/iGEMwiki/images/LightMachine-fig1.jpg"width="150
+
-
" height="150" alt="blue1" align="center">
+
</div>
</div>
-
 
</center>
</center>
-
   
 
-
<p><b>Spectrometer</b> – is an instrument for measuring Irradiance. </p>
+
<div id="header-project-column">
-
<p><b>**</b> Is the device that has everything but it costs much more</p>
+
<div class="br2"></div>
-
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<div class="br2"></div>
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<center>
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<div class="br2"></div>
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        <a name="References"></a>References
-
<div class = "img-holder" style="width:200px; height:150px; font-size: 18px;">  
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        <div class="br2"></div>
-
<img src="http://www.genobiotec2011.org/iGEMwiki/images/LightMachine-fig2.jpg"width="200
+
<div class="br2"></div>
-
" height="150" alt="blue1" align="center">
+
<div class="br2"></div>
 +
      </div>
 +
<p>
 +
<ul>
 +
<li>Tabor JJ, Levskaya A, Voigt CA. (2010). Multichromatic Control of Gene Expression in <i>Escherichia coli</i>. <i>J. Mol. Biol.</i> <b>405</b>: 315-324.</li>
 +
<li>Levskaya A, <i>et al</i>. (2005). Synthetic 674 biology: engineering <i>Escherichia coli</i> to see light. <i>Nature</i>. <b>438:</b> 441–442.</li>
 +
<li><a href="http://openwetware.org/wiki/LightCannon" title="http://openwetware.org/wiki/LightCannon" target="_new">http://openwetware.org/wiki/LightCannon</a>. </li>
 +
<li><a href="http://www.optics.arizona.edu/Palmer/rpfaq/rpfaq.htm" title="www.optics.arizona.edu/Palmer/rpfaq/rpfaq.htm" target="_new">www.optics.arizona.edu/Palmer/rpfaq/rpfaq.htm</a>.</li>
 +
<li><a href="http://www.helios32.com/Measuring%20Light.pdf" title="www.helios32.com/Measuring%20Light.pdf" target="_new">www.helios32.com/Measuring%20Light.pdf</a></li>
 +
<li>Photonfocus AG, Application Note AN008. 12/2004 V1.1 "Photometry versus Radiometry". http://www.photonfocus.com/upload/application_notes/AN008_e_V1_1_PhotometryVersusRadiometry.pdf</li>
 +
</ul>
 +
</p>
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     <div class="lateral-button"><a href="#Light-Measurements">Light Measurements</a></div>
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banner-main iGEM-logo
Team: UANL_Mty-Mexico
Team: UANL_Mty-Mexico
Contributions: Light Machine
Construction

This page explains extensively how to build a "Light Machine".

Overview of the "Light Machine"

We built a special machine that allows us to properly excite both photoreceptors (CcaS/CcaR and Cph8) independently/simultaneously using specific wavelengths of 535 and 650 nm, respectively. This "Light Machine" was based mainly on previous publications that work with light [1][2][3].

Light Machine Figure 3
Light Machine overview.
Materials
  • Two 100 W halogen lamp (Philips)
  • Green and Red bandpass interference filters
    • *We got ours from Edmunds Optics.
    Description: Interference Bandpass Filter 535nm ±2, 25mm Catalog Number: NT65-700.
    And Interference Bandpass Filter 650nm ±2, 25mm Catalog Number: NT65-715
  • 37°C incubator with thermometer hole on top
  • Adjustable shelves
  • Two Support Stands/Clamps
  • Two Emitter-Receptor Pieces
  • T-45° Block
  • Aluminum tubes (33 mm X 180 mm & 33 mm X 90 mm) mirror like finish inside
  • Two mirrors 50 mm X 50 mm
  • Two porcelain sockets T4 base
  • 2 Small Fans
Photometer
Picture from the inside of LightMachine
How to make Emitter–Receptor pieces and T-45° Block
Emitter
Emitter. 100% aluminium
Emitter
Emitter with porcelain socket and halogen bulb.
Emitter
T 45 block. In wood and aluminum
Emitter
Receptor. 100% Aluminium
Distance overview of "Light Machine"
Light Machine Figure 3 Light Machine Diagram.
Instructions
  • First of all, collect or make all the materials shown above
  • Wallpaper completely the inside of the incubator with black paper.
  • Clear the thermometer hole in the top of incubator such that light can pass through.
  • Place the T-45° Block at the top of the incubator on the thermometer hole and fix it with a plastic ring.
  • Place two mirrors on T-45°Block.
  • Immobilize the bandpass filter inside a plastic 1' coupling with small plastic ring.
  • Join the desired coupling to the small aluminum pipe of T-45° Block.
  • Immobilize the emitter-receptor pieces at both sides of incubator, we use adjustable shelves.
  • Join the aluminum tube to the Emitter-Receptor.
  • Leave proper distance (two finger rule) between coupling and aluminum pipe.
  • Immobilize aluminum tubes with support stands.
  • Place the aluminum tube in Emitter-Receptor piece and place the pipes parallel to the T-45° Block.
  • Turn on the lamps; adjust the positioning of mirrors such that a clear and homogeneous light pattern appears in the center of your incubator.
    • Notes:
    • Have fans near Aluminum Pieces, they become very hot over time, prevents halogen lamp and filter fails.
    • Our incubator has a 1 3/4' hole.
    • When placing T-45° Block ensure to cover all light penetrable areas.
    • Buy more than 2 halogen lamps; they break easily.
    • Be careful when handling the halogen lamps, they heat in a very short time.
    • We bought 4 BP filters 532, 575, 650, 710 nm respectively.
    • Make experiments in dark room.
    • Clean mirrors when possible.
    • Measure light intensity before starting test.
Light Intensities Measurements

Before starting making measurements it is necessary to understand the following concepts:

Radiometry: is the measurement of optical radiation from a physical point of view, includes the regions commonly called the ultraviolet, the visible and the infrared. Two out of many typical units encountered are Watt and Joule.

Photometry: is the measurement of visible light, which is detectable by the human eye. These measurements tend to be subjective. Typical photometric units include lumens, lux and candelas.

Photometry is almost the same as radiometry, except that radiometry includes the entire optical radiation spectrum, while photometry is limited to the visible spectrum as defined by the response of the eye[4][6].

Irradiance (a.k.a. flux density) is a SI derived unit and is measured in W/m2. Irradiance is power per unit area incident from all directions in a hemisphere onto a surface that coincides with the base of that hemisphere.

Illuminance (a.k.a. luminous flux density) is another SI unit and is measured in lux. Illuminance is the total luminous flux incident on a surface per unit area. (Is the photometric equivalent of irradiance)[5].

**In a few words you need to measure in photometric units (lux) and convert them to radiometric units (W/m2) or measure directly in W/m2

There are two typical kinds of devices to measure light intensities once having assembled the "Light Machine":

Photometer - is an instrument for measuring Illuminance (Photometric units), then this value will be converted into Irradiance (W/m2).

**Cheaper measurement device and works properly.

Photometer Photometer.

Spectrometer – is an instrument for measuring Irradiance.

**Is the device that has everything but it costs much more

Spectrometer Spectrometer.
Determining light Intensities

The intensity of light was measured in lux units, lumens per square meter using an Easy View Light Meter (Model EA31) calibrated photometer, which later were converted to power units of Watts per square meter.

The light beam was divided into zones, which underwent an average of intensities in the X, Y-axis to determine the intensity of that area. Intensity averages were calculated before each test. Samples were placed in the zone that better fits the desired intensity.

The Bandpass interference filters have a 10 nm transmission window with a peak at the emission wavelength. Precise light wavelengths and intensities are very important to achieve the desired response of photoreceptors.

How to convert to from lux to W/m2

Radiometric and photometric units can be converted into each other[6]. Several factors, such as wavelength and mono/multicromatic light source must be take into account.

The conversion between photometric and radiometric units, for a monochromatic light source, is given by the following equation:

K(λ) = Km*V(λ)

Where:

K(λ) - Radiant flux (lm/W)

V(λ) - Photo tropic spectra luminous efficiency function. Corresponds to the sensitivity of the human eye and its function of the wavelength of light (Fig 2 Appendix B)[6]

Km – Scaling Factor: 683 lm/W

**Remember that this formula is effective only for monochromatic light sources (Multicromatic light sources are a bit more complicated).

**Observe measurement device modality (Photopic or Scotopic)**

 

Example of conversion from photometric to radiometric units for a 532 nm wavelength:

K(λ) = Km* V(λ)

K(532 nm) = 683 lm/W *V(532nm)

K(532 nm) = 683 lm/W * 0.862

K(532 nm) = 588.746 lm/W

 

1 W = 588.76 lm @ 532 nm

1 W/m2 = 588.79 lm/m2 ; 1 lux = 1 lm/m2

1 lux = 1/588.79 W/m2 = 1.69 mW/m2 @ 532 nm

Now calculate your respective intensities for your experiment.
Emitter
Correlation W/m2 to Lux @532nm
Emitter
Correlation W/m2 to Lux @650nm
Emitter
Correlation W/m2 to Lux @710nm
Intensity/Wavelength

The light intensity on the sample depends mainly on 3 factors:

  • Distance - Is inversely proportional to the light output
  • Lamp light output - Depending on the type of lamp, it will produce different wavelength intensities.
  • Specific Wavelength.

Consider the light loss during the pathway.

It is very important to have the correct intensity/wavelenght (W/m2 for @ nm) for each photoreceptor, otherwise it may produce unwanted results.

Spectrometer
1) Two-color optical control of gene expression in E. coli. Light intensity transfer functions of strains carrying each sensor alone or both sensors. Strains expressing the green sensor only CcaS/CcaR (green circles), red sensor only Cph8 (red squares), or both (gray circles) were exposed to varying intensities of 532 nm or 650 nm light. 2) Spectral transfer functions. E. coli carrying the green or red sensor was exposed to saturating levels of a given light wavelength, and Miller assays were conducted. Figures taken from Tabor JJ et al. (2010) J. Mol. Biol. 405: 315-324.
References

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Team: UANL_Mty-Mexico

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