Fig. 4 | Nature Communications

Fig. 4

From: Self-implantable double-layered micro-drug-reservoirs for efficient and controlled ocular drug delivery

Fig. 4

Biphasic release profile of double-layered microneedles. a Schematic release profile of DL-MNs in agarose hydrogel. b The merge of the optical and fluorescence image of DL-MNs with the supporting patch (before insertion), and visualization of real-time release of IgG(680) (red colour) and IgG(488) (green colour) from DL-MNs in agarose hydrogel (3 min–6 h). Scale bars = 200 µm

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