Modeled after the way plants cells expand and shrink in the sun, bioengineers at UC Berkeley have created a new gel that can be manipulated by light, which could be used for drug delivery and tissue ... more 
Modeled after the way plants cells expand and shrink in the sun, bioengineers at UC Berkeley have created a new gel that can be manipulated by light, which could be used for drug delivery and tissue engineering. (June 4) less 
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Tue, Jun 4, 2013 11:04 AM EDT