BIO-OPTOELECTRONIC NOSE: A NOVEL PLATFORM FOR ORTHOGONAL CHEMICAL SENSING
Abstract
The main objective of the proposed research is to develop a multimodal electronic nose that exploits the unique optical and electronic properties of gold nanoparticles (AuNPs) and their assemblies. We propose to develop novel techniques for the controlled synthesis and the self-assembly of gold nanoparticles that enable a novel class of highly selective optical (localized surface plasmon resonance (LSPR)/surface enhanced Raman scattering (SERS)) and electrical (chemiresistor) chemical sensors. Properties such as size, morphology (spheres vs. cubes or linear chains vs. branched networks) and surface functionality will be systematically manipulated to generate a rich repertoire of sensing materials. We expect a multimodal sensor array with diverse AuNP-based sensing elements to create a novel paradigm in the field of noninvasive chemical sensing. This higher-order approach (dimensions of the system parameters: materials; operating method: bias-voltage modulation; readouts: SERS/ localized surface plasmon resonance (LSPR) spectra and d2I/dV2; time) will pose several significant signal-processing challenges that will also be systematically addressed in this work.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 26, 2018
- Source ID
- N000141613030
Entities
People
- Srikanth Singamaneni
Organizations
- Office of Naval Research
- United States Navy
- Washington University in St. Louis