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. 2023 Jan 14;13(1):141. doi: 10.3390/bios13010141

Figure 7.

Figure 7

(A) Synthesis of glucose and lactate-sensing microdomains encapsulating glucose oxidase or lactic acid oxidase, catalase, and EC-PF68 NPs. The micro-reactors are coated with polyelectrolyte multilayer glucose diffusion control nanofilms by layer-by-layer sequential deposition method. Finally, the microreactors are dispersed in calcium alginate hydrogels to obtain the hydrogel glucose or lactate sensors. Confocal fluorescence composite image of (B) glucose sensors with GOx and EC-PF68 NPs in the core (yellow) and diffusion control nanofilms (red) (C) Lactate sensors with LOx and EC-PF68 NPs in the core (blue) with fluorescent labeled diffusion control nanofilms (red). Scale bar on panels B and C is 40 µm.