title: Bioenabled SERS Substrates for Food Safety and Drinking Water Monitoring.
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.
authors.affiliation: School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331, USA.
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.affiliation: School of Chemical, Biological & Environmental Engineering, Oregon State University, Corvallis, OR, 97331, USA.
authors.forename: Gregory L
authors.initials: GL
authors.lastname: Rorrer
authors.affiliation: School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331, USA.
authors.forename: Alan X
authors.initials: AX
authors.lastname: Wang
keywords: Bioenabled Nanomaterials; Food Sensor; Photonic Crystals; SERS; Surface Plasmons