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. 2020 Dec 3;15:9717–9743. doi: 10.2147/IJN.S276001

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© 2020 Bai et al.

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Schematic diagram of hydrogel synthesis. (A) Scheme of poly-carboxybetaine (PCB) hydrogel dressing for the detection of pH value and glucose concentration in wound exudate. Reprinted with permission from Zhu YN, Zhang JM, Song JY, et al. A multifunctional pro-healingzwitterionic hydrogel for simultaneous optical monitoring of pH and glucose in diabetic wound treatment. Adv Funct Mater.2019:1905493. Copyright 2019, John Wiley and Sons.²³⁹ (B) The formation of OxOBand from PUAO-CPO cryogels with ADSC-exos. Reprinted with permission from Shiekh PA, Singh A, Kumar A. Exosome laden oxygen releasing antioxidant and antibacterial cryogel wound dressing OxOBandalleviate diabetic and infectious wound healing. Biomaterials.2020;249:120020. Copyright 2020, Elsevier.¹⁸¹

Abbreviations: HRP, horseradish peroxidase; DCF, dichlorofluorescein; GOx, glucose oxidase; H₂DCF, 2′,7′‐dichlorofluorescein‐diacetate.