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Figure 4
Electrically stimulated drug release curves for (a) F20S0P/PX and (b) F18S2P/PX hydrogels. The electrical stimulation frequency involves applying a −0.3 V voltage for 60 s every 2 h (marked as dashed lines). The inset in (b) represents the drug release curve of the blade-coatingF18S2P/PX hydrogel under a single −0.3 V voltage stimulus compared with that without electrical stimulation. |

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