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. 2017 Mar 6;7(5):1214–1224. doi: 10.7150/thno.17252

Figure 2.

Figure 2

Biocompatibility and cellular uptake of AuNPs. PDLPs were treated with AuNPs with the diameters of 5, 13 and 45 nm, respectively. (A) Light microscope images of PDLPs treated with AuNPs (10 μM) for 48 h. (B) Effects of AuNPs on the viability of PDLPs were measured using CCK-8 at 48 h. **p<0.01. (C) TEM images of PDLPs treated with AuNPs (10 μM) for 3 days. (V-VIII) were the high magnification images of the indicated portion in (I-IV), respectively. Arrows indicate internalized AuNPs, the labels “AP” indicate autophagosome, and the labels “AL” indicate autolysosome.