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. Author manuscript; available in PMC: 2016 Jun 3.
Published in final edited form as: Adv Healthc Mater. 2015 Mar 11;4(8):1236–1245. doi: 10.1002/adhm.201500034

Figure 2.

Figure 2

Size, morphology and stability of IONP-PTX-FL and IONP-PTX-CTX-FL. (a) TEM micrographs of IONP-PTX-FL (left) and IONP-PTX-CTX-FL (right) with negative staining. Scale bars represent 50 nm. Insets are enlarged images of single particles. (b) Photographs of IONP-PTX-FL and IONP-PTX-CTX-FL in PBS (1 and 2) and complete DMEM cell culture medium at 0 day (3 and 4) and at 4 wks after incubation at 37°C (5 and 6). (c) Hydrodynamic sizes of NPs incubated in cell culture medium at 37°C as a function of incubation time over 4 wks. (d) DLS analysis of NPs in PBS before and 4 wks after incubation with cell culture medium at 37°C.