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3-D nanoporous optofluidic device for high sensitivity SERS detection

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2 Author(s)
Soroush H. Yazdi ; Fischell Dept. of Bioengineering, University of Maryland, College Park, United States ; Ian M. White

We report the demonstration of an optofluidic surface enhanced Raman spectroscopy (SERS) device that leverages nanoporous microfluidics to dramatically increase the SERS performance. In this work, we utilize packed silica microspheres in a microfluidic channel to create a 3D nanoporous concentration matrix to achieve a detection limit of 400 attomoles of Rhodamine 6G in 2 minutes in a simple to fabricate microfluidic chip. Integrated fiber optics further enables the device to be relevant for portable applications.

Published in:

Microsystems for Measurement and Instrumentation (MAMNA), 2012

Date of Conference:

27-27 March 2012