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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Official URL: http://dx.doi.org/10.1021/nl0712466
Abstract
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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