Issue Date: March 6, 2006
Quick cocaine detection
A new electronic, aptamerbased sensor that rapidly and cheaply detects cocaine illustrates the general power of such devices, say creators Kevin W. Plaxco, Alan J. Heeger, and colleagues at the University of California, Santa Barbara (J. Am. Chem. Soc. 2006, 128, 3138). The basic sensor consists of a nucleotide sequence designed by molecular evolution to . . .
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