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. 2021 Jun 23;19:188. doi: 10.1186/s12951-021-00934-0

Fig. 2.

Fig. 2

Characterization of TPL/NPs. a Particle distribution by DLS and TEM image of TPL/NPs in response to different conditions. FTIR (b) and XRD (c) analysis of TPL/NPs. (a: Free TPL; b: TPL + polymer; c: TPL/NPs). d Hemolysis assay of TPL/NPs at different concentrations of HA-VE/PBAEss polymers; PBS and water were employed as negative and positive controls, respectively. e In vitro release profile of TPL from TPL/NPs in different mediums at 37 ℃