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. 2017 Jul 20;18(1):528–540. doi: 10.1080/14686996.2017.1344929

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© 2017 The Author(s). Published by National Institute for Materials Science in partnership with Taylor & Francis

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 9. — UV-vis spectra of Ag/Au NPs at a series of concentrations. 2.5% is the concentration of Ag/Au NPs present in each sample. This peak is not observed during the release tests meaning NPs are not being released.