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SRU Biosystems of Woburn, Mass., has received US Patent No. 7,935,520, "Optical detection of label-free biomolecular interactions using microreplicated plastic sensor elements." A biosensor is described that includes an optical grating with a first and a second surface. The optical grating includes an optically transparent material that conducts electricity. The grating is replicated from a master grating structure by causing a liquid to harden after dispensing the liquid between the master grating structure and a substrate layer.

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The US Food and Drug Administration has new guidelines that enable some gene and cell therapies to undergo expedited review, according to the New York Times.

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