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In vitro human skin decontamination efficacy of MOF-808 in decontamination lotion following exposure to the nerve agent VX
Toxicology Letters ( IF 3.5 ) Pub Date : 2021-03-01 , DOI: 10.1016/j.toxlet.2020.12.014
Andreas Larsson , Johanna Qvarnström , Sandra Lindberg , Elisabeth Wigenstam , Linda Öberg , Robin Afshin Sander , Susanne Johansson , Anders Bucht , Lina Thors

Metal-organic frameworks (MOFs) have shown promising properties for removal of chemical warfare agents, in particular for material decontamination and functionalized fabrics. The MOF-properties could also be beneficial for skin decontamination, especially when exposed to highly toxic and low volatile nerve agents. In such exposures, efficient decontamination is crucial for adequate medical management. In the present study, seven zirconium-based MOFs were evaluated for their ability to degrade VX and subsequently tested in vitro for decontamination of VX on human dermatomed skin. Of the MOFs evaluated, MOF-808 showed the greatest ability to degrade VX in an alkaline buffer with complete degradation of VX within 5 min. PCN-777, Zr-NDC and NU-1000 displayed degradation half-lives of approximately 10 min. When including MOF-808 in a skin friendly carrier with slightly acidic pH, a decreased agent degradation rate was observed, requiring over 24 h to reach complete degradation. In skin decontamination experiments, MOF-808 enhanced the efficacy compared to the carrier alone, essentially by improved agent absorption. Adding MOF-808 to Reactive Skin Decontamination Lotion (RSDL) did not improve the high effectiveness of RSDL alone. The present study showed that including MOF in skin decontamination lotions could be beneficial. Further studies should include optimizing the particulates and formulations.

中文翻译:

暴露于神经毒剂 VX 后,MOF-808 在去污乳液中的体外人体皮肤去污功效

金属有机框架 (MOF) 已显示出去除化学战剂的有希望的特性,特别是用于材料去污和功能化织物。MOF 特性也有利于皮肤净化,尤其是当暴露于剧毒和低挥发性神经毒剂时。在此类暴露中,有效的净化对于充分的医疗管理至关重要。在本研究中,评估了七种基于锆的 MOF 降解 VX 的能力,并随后在体外测试了 VX 在人体皮肤上的净化能力。在评估的 MOF 中,MOF-808 在碱性缓冲液中显示出最大的 VX 降解能力,VX 在 5 分钟内完全降解。PCN-777、Zr-NDC 和 NU-1000 的降解半衰期约为 10 分钟。当在具有微酸性 pH 值的亲肤载体中加入 MOF-808 时,观察到试剂降解率降低,需要超过 24 小时才能完全降解。在皮肤去污实验中,与单独使用载体相比,MOF-808 增强了功效,主要是通过改善药剂吸收。将 MOF-808 添加到反应性皮肤去污乳液 (RSDL) 中并不能提高单独使用 RSDL 的高效性。目前的研究表明,在皮肤去污乳液中加入 MOF 可能是有益的。进一步的研究应包括优化颗粒和配方。主要是通过改善药物吸收。将 MOF-808 添加到反应性皮肤去污乳液 (RSDL) 中并不能提高单独使用 RSDL 的高效性。目前的研究表明,在皮肤去污乳液中加入 MOF 可能是有益的。进一步的研究应包括优化颗粒和配方。主要是通过改善药物吸收。将 MOF-808 添加到反应性皮肤去污乳液 (RSDL) 中并不能提高单独使用 RSDL 的高效性。目前的研究表明,在皮肤去污乳液中加入 MOF 可能是有益的。进一步的研究应包括优化颗粒和配方。
更新日期:2021-03-01
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