Bioenabled SERS substrates for food safety and drinking water monitoring

Jing Yang; Gregory L. Rorrer; Alan X. Wang

doi:10.1117/12.2178077

13 May 2015 Bioenabled SERS substrates for food safety and drinking water monitoring

Jing Yang, Gregory L. Rorrer, Alan X. Wang

Proceedings Volume 9488, Sensing for Agriculture and Food Quality and Safety VII; 948808 (2015) https://doi.org/10.1117/12.2178077
Event: SPIE Sensing Technology + Applications, 2015, Baltimore, MD, United States

Abstract

We present low-cost bioenabled surface-enhanced Raman scattering (SERS) substrates that can be massively produced in sustainable and eco-friendly methods with significant commercial potentials for the detection of food contamination and drinking water pollution. The sensors are based on diatom frustules with integrated plasmonic nanoparticles. The ultra-high sensitivity of the SERS substrates comes from the coupling between the diatom frustules and Ag nanoparticles to achieve dramatically increased local optical field to enhance the light-matter interactions for SERS sensing. We successfully applied the bioenabled SERS substrates to detect melamine in milk and aromatic compounds in water with sensitivity down to 1μg/L.

Citation Download Citation

Jing Yang, Gregory L. Rorrer, and Alan X. Wang "Bioenabled SERS substrates for food safety and drinking water monitoring", Proc. SPIE 9488, Sensing for Agriculture and Food Quality and Safety VII, 948808 (13 May 2015); https://doi.org/10.1117/12.2178077

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