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. 2014 Jan 5;4(2):163–174. doi: 10.7150/thno.7064

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© Ivyspring International Publisher. This is an open-access article distributed under the terms of the Creative Commons License (http://creativecommons.org/licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited.

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(A) Comparison of 24 h release kinetics of AuNC-HPPH in serum (diamonds) and PBS (squares). Inset depicts photograph of vials containing AuNC-HPPH in PBS (left) and serum (right) under UV light illumination. (B) UV-vis-NIR spectra of AuNC-HPPH in serum at different time periods, with PA wavelengths marked. Spectra are normalized to the AuNC LSPR peak. (C) Plot of normalized PA signal amplitude of AuNC-HPPH in serum as a function of time at λ = 665 nm (green square) and 685 nm (red diamond). (D) Blow-up view of the box region in (C).