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Updated: Jun 23, 2026
Optical Trapping of Plasmonic Nanoparticles for In Situ Surface-Enhanced Raman Spectroscopy Characterizations
Published on: June 23, 2022
Selective detection of hexachromium ions by localized surface plasmon resonance measurements using gold
Keith J Fahnestock1, Mael Manesse, Holly A McIlwee
1Department of Materials Science and Engineering, Drexel University, 3141 Chestnut St., Philadelphia, PA 19104, USA.
Abstract:
Selective removal of hexavalent chromium ions from aqueous solutions using a chitosan/gold nanoparticles composite film was demonstrated. Localized surface plasmon resonance (LSPR) was used to measure the interface stability and detect the incorporation of chromium ions over time. The effects of pH, ethylenediaminetetraacetic acid (EDTA), and various foreign ions such as trivalent chromium, sodium, calcium, phosphate, sulfate and chloride on the adsorption of hexavalent chromium were investigated.
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