<img src="http://tctechcrunch.files.wordpress.com/2011/04/ioxus.png" class="shot2"></img>A New York-based clean tech startup, Ioxus, raised a $21 million investment from <a href="http://www.energytech
<img src="http://tctechcrunch.files.wordpress.com/2011/03/us-doe-logo-sq.jpg" class="shot2"></img> Today marked the last day of the U.S. Department of Energy's Advanced Research Projects Agency (ARPA-