Develop portable surface-enhanced Raman scattering sensors to detect harmful materials in aquatic products and other applications

Abstract

As food safety problems have emerged in recent years traditional mass spectrometer analysis for food safety detection is expensive and subject to many restrictions Therefore there is a market demand for rapid detection of food safety This study collaboration between industry and school to develop a test strip for food safety testing and it is a low-cost simple fast and mass-producible SERS sensor In this study we developed a paper-based bimetallic nanoparticles SERS substrate sensor: Au1Ag0 15 structure sensor which satisfies commercialization conditions of high sensitivity high fingerprint identification real-time detection repeatability and easy to store etc To test the effect of food safety detection we used two laser systems to detect the experimental malachite green extracted from tilapia tissue and calculate the concentration through the calibration curve Finally compare the results of the HPLC-MS (from testing agency) and this study In addition to the above-mentioned bimetallic Raman test strips we collaborated with other laboratories to develop an acid-resistant paper substrate through the carbon quantum dot materials produced and the current method of Raman test strips Detection of E coli and its metabolites

Date of Award	2020
Original language	English
Supervisor	Chih-Chia Huang (Supervisor)