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. 2015 Jun 22;112(27):8260–8265. doi: 10.1073/pnas.1505405112

Fig. 1.

Fig. 1.

Schematic of the glucose-responsive insulin delivery system using hypoxia-sensitive vesicle-loading MN-array patches. (A) Formation and mechanism of GRVs composed of HS-HA. (B) Schematic of the GRV-containing MN-array patch (smart insulin patch) for in vivo insulin delivery triggered by a hyperglycemic state to release more insulin.