Chemical Sensing Based on Catalytic Nanomotors: Motion-Based Detection of Trace Silver
Journal of the American Chemical Society2009Vol. 131(34), pp. 12082–12083
Citations Over TimeTop 10% of 2009 papers
Daniel Kagan, Percy Calvo‐Marzal, Shankar Balasubramanian, Sirilak Sattayasamitsathit, Kalayil Manian Manesh, Gerd‐Uwe Flechsig, Joseph Wang
Abstract
A motion-based chemical sensing involving fuel-driven nanomotors is demonstrated. The new protocol relies on the use of an optical microscope for tracking changes in the speed of nanowire motors in the presence of the target analyte. Selective and sensitive measurements of trace silver ions are illustrated based on the dramatic and specific acceleration of bimetal nanowire motors in the presence of silver. Such nanomotor-based measurements would lead to a wide range of novel and powerful chemical and biological sensing protocols.
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