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. 2013 Jan 24;14(2):2303–2333. doi: 10.3390/ijms14022303

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© 2013 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Wavelength-selective shape changes in stratified assemblies of polymer-grafted gold nanoparticles and nanoshells. (a–c) Confocal laser scanning microscopy images of light-controlled shape changes in two-strata bNP₅₀₀-bNS₅₀₀ cubes upon irradiation using wavelengths at 546 nm (1.1 W/cm²) and 785 nm (2 W/cm²); (d–f) Similar experiments with three-strata bNS₃₀₀-bNP₄₀₀-bNS₃₀₀ cubes. Illumination time was 20 min. Reprinted with permission from [169]. Copyright 2012, American Chemical Society.