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Synthesis of Highly Fluorescent Gold Nanoparticles for Sensing Mercury(II)
Author(s) -
Huang ChihChing,
Yang Zusing,
Lee KunHong,
Chang HuanTsung
Publication year - 2007
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.200700803
Subject(s) - mercury (programming language) , fluorescence , colloidal gold , nanoparticle , quenching (fluorescence) , chemistry , nanotechnology , selectivity , combinatorial chemistry , nuclear chemistry , materials science , computer science , organic chemistry , physics , optics , catalysis , programming language
Quenching upon aggregation : 11‐Mercaptoundecanoic acid (11‐MUA)‐protected Au nanoparticles (11‐MUA‐AuNPs) are much more stable and fluoresce much more strongly than the corresponding unmodified AuNPs. After addition of 2,6‐pyridinedicarboxylic acid, the 11‐MUA‐AuNPs bind to Hg II with both high sensitivity and selectivity.