Nano Archive

Optical transduction of chemical forces

Mack, Nathan H. and Wackerly, Jay Wm. and Malyarchuk, Viktor and Rogers, John A. and Moore, Jeffrey S. and Nuzzo, Ralph G. (2007) Optical transduction of chemical forces. NANO LETTERS, 7 (3). pp. 733-737.

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We describe a plasmonic crystal device possessing utility for optically transducing chemical forces. The device couples complex plasmonic fields to chemical changes via a chemoresponsive, surface-bound hydrogel. We find that this architecture significantly enhances the spectroscopic responses seen at visible wavelengths while enabling capacities for sensitive signal transduction, even in cases that involve essentially no change in refractive index, thus allowing analytical detection via colorimetric assays in both imaging and spectroscopic modes.

Item Type:Article
Subjects:Analytical Science > Nanotechnology for sensing and actuating
ID Code:6380
Deposited By:IoN
Deposited On:06 Aug 2009 16:31
Last Modified:06 Aug 2009 16:31

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