Journal
IEEE ACCESS
Volume 8, Issue -, Pages 194925-194932Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2020.3032836
Keywords
Substrates; Gratings; Silver; Explosives; Raman scattering; Sensitivity; Couplings; Composite sinusoidal grating; continuous detection; gas phase trace explosives; gold nanoparticles colloids; surface enhanced Raman scattering
Categories
Funding
- National Defense Research Program of Science and Technology, China [2004053]
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The demand of continuous detection technology for gas phase trace explosives (GPTE) in explosion-proof stability maintenance, public security, explosive security storage and other occasions is summarized. By studying the development status and research trends of surface enhanced Raman scattering (SERS) detection technology to detect GPTE, an application of a double enhanced Raman scattering (DERS) substrate consisted of a novel 1D composite silver grating and gold nanospheres colloids in the GPTE detection was presented. The detection sensitivity of 2,4,6-trinitrotoluene (TNT) and cyclotrimethyltrinitroamine (RDX) was 10(-11) mol/L. Combining with microfluidic technology, it can realize in-situ and continuous GPTE detection. This DERS substrate has a significant reference for the application of SERS detection technology in food safety, health care and environmental monitoring, et al.
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