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Plasmon Resonance Scattering Spectroscopy at the Single‐Nanoparticle Level: Real‐Time Monitoring of a Click Reaction
Author(s) -
Shi Lei,
Jing Chao,
Ma Wei,
Li DaWei,
Halls Jonathan E.,
Marken Frank,
Long YiTao
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201301930
Subject(s) - surface plasmon resonance , nanoparticle , plasmon , spectroscopy , materials science , colloidal gold , rayleigh scattering , light scattering , localized surface plasmon , dynamic light scattering , analytical chemistry (journal) , scattering , photochemistry , chemistry , nanotechnology , optoelectronics , optics , organic chemistry , physics , quantum mechanics
A method based on plasmon resonance Rayleigh scattering (PRRS) spectroscopy and dark‐field microscopy (DFM) was established for the real‐time monitoring of a click reaction at the single‐nanoparticle level. Click reactions on the surface of single gold nanoparticles (GNPs) result in interparticle coupling, which leads to a red‐shift of the λ max (Δ λ max =43 nm) in the PRRS spectra and a color change of the single gold nanoparticles in DFM (from green to orange).