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. 2019 Sep 10;7:218. doi: 10.3389/fbioe.2019.00218

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Copyright © 2019 Zhang, Xiu, Gan, Shan, Ren, Yuwen, Weng, Teng and Wang.

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(s) 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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(A) The relative absorbance at 785 nm of MoS₂ NSs, MP NSs, MPP NSs, and MPPI NSs aqueous dispersions (MoS₂: 20 μg/mL) after stored in ambient environment at different times. (B) Photographs of MoS₂ NSs and MP NSs aqueous dispersions (MoS₂: 20 μg/mL) at 0 d and 30 d. (C) Photographs of MoS₂ NSs, MP NSs, MPP NSs, and MPPI NSs (MoS₂: 40 μg/mL) dispersed in H₂O, PBS (phosphate buffered saline), and MEM (Minimum Essential Medium) for 1 d, respectively. (D) Cell viabilities of human cervical carcinoma (HeLa) cells after incubation with MoS₂ NSs, MP NSs, MPP NSs, and MPPI NSs for 24 h.