Silver Nanoparticle on Alumina Films Tailored for Surface-enhanced Raman Spectroscopy and Detection of Pesticides
Source abstract
Abstract
Silver nanoparticles (AgNPs) have been widely investigated for their ability to enable surface-enhanced Raman scattering for chemical sensing. Despite many advantages of silver over other plasmonic metals, the unwanted reactivity of silver makes long-term substrate stability and quantitative reproducibility in sensing challenging. AgNPs supported on alumina display robust stability against oxidation while remaining labile to photochemical shape control methods. These easily reproduced films can be tailored to absorb light across the visible spectrum depending on user needs and show long-term performance as SERS sensors. Optimization parameters are explored, and these films are showcased as promising chemical sensors for the pesticide thiram with a 96 ppb (m/v) detection limit.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Advanced Nanomaterials in Catalysis · Biosensors and Analytical Detection
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry, Queen’s University, 90 Bader Ln, Kingston K7L 3N6, Ontario, Canada
Department of Chemical Engineering, Queen’s University, 19 Division Street, Kingston K7L 3N6, Ontario, Canada
Funding
Canada Foundation for Innovation · Natural Sciences and Engineering Research Council of Canada
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