http://www.treesandthings.com/story/2007/5/25/10733/6327 Back in 2004 <a href="http://www.plastic.com/article.html;sid=04/02/20/08221900">plastic.com had a brief discussion</a> about <a href="http://www.northfieldlabs.com/polyheme.html">PolyHeme</a>.  At that time, a study of the temporary blood substitute manufactured from hemoglobin was just beginning.  While many, even some on Plastic, had concerns about PolyHeme and the manner in which the study might be run, a green light was given for the study.  Well, now the study is complete and the <a hre en-us Thu, 31 May 2007 06:54:41 EST Fri, 1 Jun 2007 14:10:47 EST http://www.treesandthings.com/story/2007/5/25/10733/6327#3 Just how bad is the blood shortage that we need fake blood? Aside from rare blood types which this doesn't seem to be directly addressing, their isn't a real demand for more blood in our hospitals. It seems like nothing more than some people's attempt to d Fri, 1 Jun 2007 14:10:47 EST http://www.treesandthings.com/story/2007/5/25/10733/6327#2 In <a href="http://www.sdreader.com/php/cover.php?mode=article&showpg=1&id=20050728">San Diego</a>, the study was quietly targeted towards poorer neighborhoods, and when people started asking questions about how well the stuff worked, the people ru Fri, 1 Jun 2007 04:22:27 EST http://www.treesandthings.com/story/2007/5/25/10733/6327#1 It does seem that PolyHeme is a failure.  But  I hope that research into the manufacture of a usable form of artificial blood will continue.  The use of real human blood for transfusions carries with it endless complications, from the need f Thu, 31 May 2007 08:59:08 EST string http://www.treesandthings.com/search/