Highly selective SERS probe for Hg(II) detection using tryptophan-protected popcorn shaped gold nanoparticles |
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Authors: | Senapati Tapas Senapati Dulal Singh Anant Kumar Fan Zhen Kanchanapally Rajashekhar Ray Paresh Chandra |
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Affiliation: | Department of Chemistry, Jackson State University, Jackson, MS 39217, USA. |
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Abstract: | Contamination of the environment with toxic Hg(II) is becoming a huge concern throughout the world now. Driven by the need, this communication reports for the first time a tryptophan protected popcorn shaped gold nanomaterials based SERS probe for rapid, easy and highly selective recognition of Hg(II) ions in the 5 ppb level from aqueous solution, with high sensitivity and selectivity over competing analytes. We demonstrate that our SERS assay is capable of measuring the amount of Hg(II) in alkaline battery. |
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