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Stepwise Thermal and Photothermal Dissociation of a Hierarchical Superaggregate of DNA‐Functionalized Gold Nanoparticles
Author(s) -
Buchkremer Anne,
Linn Malte J.,
Reismann Maximilian,
Eckert Thomas,
Witten Katrin G.,
Richtering Walter,
von Plessen Gero,
Simon Ulrich
Publication year - 2011
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201002324
Subject(s) - photothermal therapy , colloidal gold , nanoparticle , materials science , dissociation (chemistry) , nanotechnology , photothermal effect , dna , photothermal spectroscopy , chemistry , biochemistry
Hierarchical superaggregates consisting of DNA‐linked 14 nm AuNPs are synthesized and characterized by optical and scattering methods. Temperature changes, induced either thermally or photothermally, lead to a switching between specific sizes associated with superaggregates, primary networks, and individual nanoparticles. This could be of interest in the design of stimuli‐responsive materials.