13 May 2015 Bioenabled SERS substrates for food safety and drinking water monitoring
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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.
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Jing Yang, Jing Yang, Gregory L. Rorrer, Gregory L. Rorrer, Alan X. Wang, 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); doi: 10.1117/12.2178077; https://doi.org/10.1117/12.2178077

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