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- W2808276162 abstract "Abstract Background and aims Wound healing requires appropriate oxygen and pH levels. Oxygen therapy and pH‐modulating treatments have shown positive effects on wound healing. Thus, a dressing, which combines high levels of dissolved oxygen (DO) with the pH of intact skin, may improve wound healing. Our aims were to (1) formulate an in situ gelling dressing with high levels of DO and with the pH level of intact skin, (2) evaluate physical and chemical properties of the dressing, and (3) elucidate basic effects of elevated levels of DO on human skin cells in vitro. Methods A dressing was formulated with 15 to 16 wt% poloxamer 407, acetate buffer, and oxygenated water. Stability of pH and DO, rheology, and shelf life were analysed. Furthermore, in vitro studies of the effect of increased levels of DO were performed. Results An in situ gelling wound dressing, with a DO concentration ranging between 25 and 35 mg/L and a pH of 5.5, was formulated. The DO concentration was stable above 22 mg/L for at least 30 hours when applied on a surface at 35°C and covered for directed diffusion into the intended wound area. At storage, the dressing had stable pH for 3 months and stable DO concentration over 30 mg/L for 7 weeks. Increasing DO significantly enhanced intracellular ATP in human skin cells, without changing reactive oxygen species production, proliferation rate, or viability. Conclusion The developed dressing may facilitate wound healing by delivering controlled and stable oxygen levels, providing adjustable pH for optimized healing, and increasing intracellular ATP availability." @default.
- W2808276162 created "2018-06-21" @default.
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- W2808276162 date "2018-06-13" @default.
- W2808276162 modified "2023-10-14" @default.
- W2808276162 title "Development of a novel in situ gelling skin dressing: Delivering high levels of dissolved oxygen at pH 5.5." @default.
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- W2808276162 doi "https://doi.org/10.1002/hsr2.57" @default.
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