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Smart Drug Delivery System; Gold Nanocage Covered With Polymer That Responds To Light, Washington University in St. Louis Study  
11/2/2009 6:58:44 AM

ScienceDaily (Nov. 1, 2009) — In campy old movies, Lucretia Borgia swans around emptying powder from her ring into wine glasses carelessly left unattended. The poison ring is usually a confection of gold filigree holding a cabochon or faceted gemstone that can be broken to empty the ring's contents. It is invariably enormous -- so large it is rather odd nobody seems to notice it.
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