Institute for Stem Cell Science and Regenerative Medicine (DBT-inStem), GKVK Post, Bellary Road, Bangalore, 560065, Karnataka, India.
Sepio Health Private Limited, Bangalore, 560065, Karnataka, India.
Nat Commun. 2024 Jun 6;15(1):4844. doi: 10.1038/s41467-024-49167-3.
Farmers from South Asian countries spray insecticides without protective gear, which leads to insecticide exposure through dermal and nasal routes. Acetylcholinesterase plays a crucial role in controlling neuromuscular function. Organophosphate and carbamate insecticides inhibit acetylcholinesterase, which leads to severe neuronal/cognitive dysfunction, breathing disorders, loss of endurance, and death. To address this issue, an Oxime-fabric is developed by covalently attaching silyl-pralidoxime to the cellulose of the fabric. The Oxime-fabric, when stitched as a bodysuit and facemask, efficiently deactivates insecticides (organophosphates and carbamates) upon contact, preventing exposure. The Oxime-fabric prevents insecticide-induced neuronal damage, neuro-muscular dysfunction, and loss of endurance. Furthermore, we observe a 100% survival rate in rats when repeatedly exposed to organophosphate-insecticide through the Oxime-fabric, while no survival is seen when organophosphate-insecticide applied directly or through normal fabric. The Oxime-fabric is washable and reusable for at least 50 cycles, providing an affordable solution to prevent insecticide-induced toxicity and lethality among farmers.
南亚国家的农民在喷洒杀虫剂时没有防护设备,这导致他们通过皮肤和鼻腔接触到杀虫剂。乙酰胆碱酯酶在控制神经肌肉功能方面起着至关重要的作用。有机磷和氨基甲酸酯类杀虫剂会抑制乙酰胆碱酯酶,导致严重的神经元/认知功能障碍、呼吸紊乱、耐力丧失和死亡。为了解决这个问题,我们开发了一种肟织物,通过将硅烷基羟肟酸共价连接到织物的纤维素上来实现。当这种肟织物被缝制成贴身衣和面膜时,它能在接触时有效地使杀虫剂(有机磷和氨基甲酸酯类)失活,防止暴露。这种肟织物可以防止杀虫剂引起的神经元损伤、神经肌肉功能障碍和耐力丧失。此外,我们观察到,当老鼠通过肟织物反复接触有机磷杀虫剂时,其存活率为 100%,而当有机磷杀虫剂直接或通过普通织物应用时,则没有老鼠存活。这种肟织物可以清洗并重复使用至少 50 次,为防止农民因杀虫剂而中毒和死亡提供了一种负担得起的解决方案。