title: Sonochemical synthesis of Ag nanoclusters: electrogenerated chemiluminescence determination of dopamine.
abstract: We report a facile one-pot sonochemical approach to preparing highly water-soluble Ag nanoclusters (NCs) using bovine serum albumin as a stabilizing agent and reducing agent in aqueous solution. Intensive electrogenerated chemiluminescence (ECL) was observed from the as-prepared Ag (NCs) and successfully applied for the ECL detection of dopamine with high sensitivity and a wide detection range. A possible ECL mechanism is proposed for the preparation of Ag NCs. With this method, the dopamine concentration was determined in the range of 8.3 × 10(-9) to 8.3 × 10(-7) mol/L without the obvious interference of uric acid, ascorbic acid and some other neurotransmitters, such as serotonin, epinephrine and norepinephrine, and the detection limit was 9.2 × 10(-10) mol/L at a signal/noise ratio of 3.
authors: Key Lab of Green Chemistry & Technology of MOE, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.
authors: Tao
authors: T
authors: Liu
authors: Lichun
authors: L
authors: Zhang
authors: Hongjie
authors: H
authors: Song
authors: Zhonghui
authors: Z
authors: Wang
authors: Yi
authors: Y
authors: Lv
mesh_terms: D004298:Dopamine / Q000032:analysis*; D055664:Electrochemical Techniques; D049449:Luminescence; D008163:Luminescent Measurements; D053768:Metal Nanoparticles / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D012995:Solubility; D013010:Sonication; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water; D012834:Silver; D004298:Dopamine
keywords: Ag nanoclusters; dopamine; electrogenerated chemiluminescence; sonochemistry