Fig. 4

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Release of dopamine from polydopamine loaded HMF-PDA NPs. (a) in pH 7.4 at 37 °C, (b) in pH 7.4 at 45 °C, (c) in pH 5 at 37 °C and (d) in pH 5 at 45 °C.
Release of dopamine from polydopamine loaded HMF-PDA NPs. (a) in pH 7.4 at 37 °C, (b) in pH 7.4 at 45 °C, (c) in pH 5 at 37 °C and (d) in pH 5 at 45 °C.