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. 2018 Feb 16;9:259. doi: 10.3389/fmicb.2018.00259

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Copyright © 2018 Lin, Li and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Characterization of CDs-LP. (A) TEM image and the corresponding size distribution histogram of CDs-LP (inset). (B) The high-resolution TEM image of CDs-LP. (C) UV–vis absorption spectra of CDs-LP in water. The insets are photographs of CDs-LP in water with and without irradiation under a 365 nm UV lamp. (D) Fluorescence spectra of CDs-LP dispersed in water. (E) FTIR spectra of dried CDs-LP. (F) XPS spectrum of dried CDs-LP and the high-resolution XPS peaks of C1s (G), N1s (H) and O1s (I).