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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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Structures and optical properties of 4-5 nm bimetallic AgAu nanoparticles

Li, Z. Y. and Wilcoxon, J. P. and Yin, F. and Chen, Y. and Palmer, R. E. and Johnston, R. L. and Chen, Yu (2008) Structures and optical properties of 4-5 nm bimetallic AgAu nanoparticles. Faraday Discussions, 138. pp. 363-373. ISSN 1359-6640

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Abstract

Three types of bimetallic AgAu nanoparticles, with mean size of 4-5 nm, AgcoreAushell, AucoreAgshell and alloyed AgAu, have been synthesized using an inverse micelle method. To image these small size nanoparticles, quantitative high angle annular dark field imaging using scanning transmission electron microscopy was successfully applied. Our results show that good control of nanoparticle size dispersion and composition modulation was achieved. Optical properties of the nanoparticles are correlated with direct internal structure analysis. The structural stability is discussed, based on thermodynamic considerations.