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. 2011 Jan 21;6(1):98. doi: 10.1186/1556-276X-6-98

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Copyright ©2011 Fratoddi et al; licensee Springer.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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DLS measurements.Left: A typical correlation function C(τ) as a function of the correlation time τ for Ag(DMPAHCl) in aqueous solution. The inset shows the correlation function in a log scale, evidencing deviations, at longer times, from a single relaxation process characterized by a single decay time. Right: The histograms of the distribution of the hydrodynamic radius of the nanoparticles in aqueous solutions. Upper panel: Ag@P(DMPAHCl) with an average hydrodynamic radius of 21 ± 2 nm; intermediate panel: Au@P(DMPAHCl), with an average hydrodynamic radius of 18 ± 2 nm; bottom panel: Pt@P(DMPAHCl), with an average hydrodynamic radius of 15.5 ± 0.5 nm.