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Proton‐Fueled, Reversible Assembly of Gold Nanoparticles by Controlled Triplex Formation
Author(s) -
Jung Young Hwan,
Lee KyungBok,
Kim YangGyun,
Choi Insung S.
Publication year - 2006
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.200601089
Subject(s) - protonation , colloidal gold , conjugated system , nanoparticle , proton , dna , chemistry , nanotechnology , photochemistry , combinatorial chemistry , materials science , organic chemistry , ion , biochemistry , polymer , physics , quantum mechanics
Fueled up : The protonation of the imino group of cytosines in double‐stranded DNA, which is required for the formation of a triplex, can be used to guide the assembly/disassembly of DNA‐conjugated gold nanoparticles. The reversible switching of the nanoparticles is demonstrated by repeated cycling of pH between 5.0 and 6.5 with the proton as a fuel (see picture).