Fig. 6.

Drug delivery from different surfaces. (a) DEX loading observation by FE-SEM. White scale bar = 200 nm, yellow scale bar = 50 nm. (b) ATR-FTIR spectrum of DEX loaded samples and (c, d) their DEX loading/release behaviors. *p < 0.05, **p < 0.01 (vs VMSTF@TNT). (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)