Reversible Photothermal Melting of DNA in DNA-Gold-Nanoparticle Networks

Photothermal control and in situ monitoring of a reversible biomolecular reaction on nanoparticle surfaces is demonstrated. DNA‐linked gold nanoparticle networks are disassembled through laser irradiation. The laser‐induced temperature increase is quantified using interferometry and network melting...

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Published inSmall (Weinheim an der Bergstrasse, Germany) Vol. 4; no. 5; pp. 607 - 610
Main Authors Reismann, Maximilian, Bretschneider, Jan C., Plessen, Gero von, Simon, Ulrich
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.05.2008
WILEY‐VCH Verlag
Subjects
biomolecules
Crystallization - methods
DNA
DNA - chemistry
DNA - radiation effects
DNA - ultrastructure
Gold - chemistry
gold nanoparticles
Light
Macromolecular Substances - chemistry
Materials Testing
Molecular Conformation
nanostructures
Nanostructures - chemistry
Nanostructures - radiation effects
Nanostructures - ultrastructure
Nanotechnology - methods
Particle Size
Photochemistry - methods
photothermal processes
Surface Properties
Temperature
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Summary:Photothermal control and in situ monitoring of a reversible biomolecular reaction on nanoparticle surfaces is demonstrated. DNA‐linked gold nanoparticle networks are disassembled through laser irradiation. The laser‐induced temperature increase is quantified using interferometry and network melting analyses.
Bibliography:We would like to thank the Deutsche Forschungsgemeinschaft Graduate School "Biointerface" (Nr. 1035) for financial support.
istex:180F3EF9F8B5A9EA5B5028D778FFA5256123EF10
ark:/67375/WNG-P0X9TK5L-K
ArticleID:SMLL200701317
Deutsche Forschungsgemeinschaft Graduate School "Biointerface" - No. Nr. 1035
We would like to thank the Deutsche Forschungsgemeinschaft Graduate School “Biointerface” (Nr. 1035) for financial support.
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ISSN:1613-6810
1613-6829
DOI:10.1002/smll.200701317