Paper-based optofluidic SERS using ink-jet-printed substrates

Wei W. Yu; Ian M. White

doi:10.1117/12.874555

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11 February 2011 Paper-based optofluidic SERS using ink-jet-printed substrates

Wei W. Yu, Ian M. White

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Proceedings Volume 7911, Plasmonics in Biology and Medicine VIII; 791105 (2011) https://doi.org/10.1117/12.874555
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

We report the development of a novel, low-cost surface enhanced Raman spectroscopy (SERS) substrate that is fabricated by ink-jet-printing silver nanostructures into cellulose paper. Analysis of a liquid sample is performed by spotting a 1 microliter droplet onto the printed SERS substrate. The droplet is contained within a small area of the SERS substrate by ink-jet-printing hydrophobic barriers to define microfluidic boundaries. Using Rhodamine 6G as the analyte, we are able to measure a strong SERS fingerprint signal when only 10 femtomoles of analyte are applied to the paper.

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Wei W. Yu and Ian M. White "Paper-based optofluidic SERS using ink-jet-printed substrates", Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 791105 (11 February 2011); https://doi.org/10.1117/12.874555

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