Nano Archive

Peptide-assembled optically responsive nanoparticle complexes

Slocik, Joseph M. and Tam, Felicia and Halas, Naomi J. and Naik, Rajesh R. (2007) Peptide-assembled optically responsive nanoparticle complexes. NANO LETTERS, 7 (4). pp. 1054-1058.

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Official URL: http://dx.doi.org/10.1021/nl070267x

Abstract

The design of active nanostructures whose form and properties can be modulated by remote means is an important challenge in nanoscience. Here we report two types of active nanoparticle complexes, with properties controlled by near-infrared illumination, resulting from the assembly of photothermally responsive plasmonic nanoparticles with thermally labile biomolecular linkers. Au nanoshells (NS) and quantum dots (QD) are assembled using coiled-coil peptides into NS-NS and NS-QD complexes. Illumination of the NS-NS complexes results in reversible disassembly reassembly, while illumination of NS-QD complexes results in a large, reproducible modulation of the quantum dot fluorescence without disassembly of the nanoparticle-peptide complex.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
ID Code:2647
Deposited By:Anuj Seth
Deposited On:09 Jan 2009 12:20
Last Modified:09 Jan 2009 12:20

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