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. 2016 Sep;13(3):349–359. doi: 10.20892/j.issn.2095-3941.2016.0048

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Copyright 2016 Cancer Biology & Medicine

This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/

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(A) A schematic illustration for SPIO@DSPE-PEG/ICG NPs preparation. (B) The SPIO@DSPE-PEG/ICG NPs had a uniform diameter of average size of 28 nm based on the TEM image. (C) UV-Vis-NIR extinction spectrum of SPIO@DSPE-PEG/ICG NPs free ICG and SPIO@DSPE-PEG NPs in water. (D) The diameter distribution of SPIO@DSPE-PEG/ICG NPs by DLS measurements. (E) Plot of the photoacoustic amplitude as a function of SPIO@DSPE-PEG/ICG NPs solution concentration and free ICG solution.