Volume 87 Issue 11 | p. 49 | Concentrates
Issue Date: March 16, 2009

An Aptamer-Based Sensor For Small Molecules

Short strands of DNA enable a microfluidic sensor to detect cocaine in blood serum
Department: Science & Technology

Sensing small molecules in unprocessed aqueous solutions, such as blood and simple soil extracts, would be a boon for point-of-care medical diagnostics and environmental monitoring in the field. So far, however, such systems have been developed for only a few specialized targets. Now, scientists at the University of California, Santa Barbara, have developed a new microfluidic, electrochemical, aptamer-based sensor that has the potential to monitor many different targets (J. Am. Chem. Soc., DOI: . . .

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