title: Highly selective SERS probe for Hg(II) detection using tryptophan-protected popcorn shaped gold nanoparticles.
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.
authors.affiliation: Department of Chemistry, Jackson State University, Jackson, MS 39217, USA.
authors.forename: Tapas
authors.initials: T
authors.lastname: Senapati
authors.forename: Dulal
authors.initials: D
authors.lastname: Senapati
authors.forename: Anant Kumar
authors.initials: AK
authors.lastname: Singh
authors.forename: Zhen
authors.initials: Z
authors.lastname: Fan
authors.forename: Rajashekhar
authors.initials: R
authors.lastname: Kanchanapally
authors.forename: Paresh Chandra
authors.initials: PC
authors.lastname: Ray
mesh_terms: D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D006046:Gold / Q000737:chemistry*; D008628:Mercury / Q000032:analysis* / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods*; D013499:Surface Properties; D014364:Tryptophan / Q000737:chemistry*
chemical_list: D004785:Environmental Pollutants; D006046:Gold; D014364:Tryptophan; D008628:Mercury