Nano Archive

Moving nanoparticles with Raman scattering

Ringler, Moritz and Klar, Thomas A. and Schwemer, A and Susha, A. S. and Stehr, J and Raschke, G and Funk, S and Borowski, M and Nichtl, A and Kuerzinger, K and Phillips, R. T. and Feldmann, Jochen (2007) Moving nanoparticles with Raman scattering. NANO LETTERS, 7 (9). pp. 2753-2757.

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We show how to change optically the distance between two protein-linked gold nanoparticles by Raman-induced motion of the linker protein. Rayleigh scattering spectroscopy of the coupled-particle plasmon allows us to compare the inter-nanoparticle distance of individual protein-linked gold nanoparticle dimers before and after surface-enhanced Raman scattering (SERS). We find that low-intensity (50 mu W/mu m(2)) laser light in resonance with the nanoparticle-dimer plasmon provokes a change of the inter-nanoparticle distance on the order of 0.5 nm whenever SERS from the proteins connecting the nanoparticles can be observed.

Item Type:Article
Subjects:Physical Science > Nanophysics
Analytical Science > Beam methods
ID Code:2630
Deposited By:Anuj Seth
Deposited On:09 Jan 2009 14:10
Last Modified:02 Mar 2009 10:30

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