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In Situ Formation of Ag Nanoparticles Capped by Photoactivable Ligands for Optical Sensing of Hypochlorite
Author(s) -
Tang Hong,
Wang Xu,
Huang Xiaohuan
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202002688
Subject(s) - hypochlorite , in situ , ligand (biochemistry) , nanoparticle , fluorescence , photochemistry , chemistry , pyrene , dual mode , materials science , nanotechnology , combinatorial chemistry , inorganic chemistry , organic chemistry , optics , biochemistry , receptor , physics , engineering , aerospace engineering
Photomediated ligands afford powerful tools to improve the spatial and temporal resolution in the clinical diagnosis and environmental monitoring. In this work, a photoactivable ligand was designed by attachment of a pyrene unit to the strained cyclic disulfide of lipoic acid. Co‐incubation of the ligand with AgNO 3 under sunlight induce the in situ formation of Ag nanoparticles with a remarkable fluorescence enhancement. By integration of fluorescent and plasmonic modalities into one structure, the obtained Ag nanoparticles exhibit a dual‐mode sensing to hypochlorite with fast response and high selectivity. This method could become an easy‐to‐obtain, ready‐to‐use, and eco‐friendly way to detect hypochlorite.