MXene (Ti3C2) Based Pesticide Delivery System for Sustained Release and Enhanced Pest Control,ACS Applied Bio Materials

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MXene (Ti3C2) Based Pesticide Delivery System for Sustained Release and Enhanced Pest Control
ACS Applied Bio Materials ( IF 4.6 ) Pub Date : 2021-08-13 , DOI: 10.1021/acsabm.1c00607
Saijie Song ₁ , Xuefeng Jiang ₁ , He Shen ₂ , Wenneng Wu ₃ , Qiaoqiao Shi ₄ , Minghui Wan ₁ , Jun Zhang ₁ , Hong Mo ₁ , Jian Shen ₁

Affiliation

A multifunctional nanomaterials based pesticide delivery system provides a powerful strategy for the efficient utilization of pesticides. We present here the application of a 2D MXene (Ti₃C₂) nanomaterial for pesticide delivery and plant protection. Avermectin (AV), a hydrophobic and unstable insecticide, was chosen as the model pesticide. In our study, AV@Ti₃C₂ was formed by fast adsorption of AV on Ti₃C₂, with a maximum loading capacity of 81.44%. Compared with hydrophobic AV, AV@Ti₃C₂ exhibited significantly improved water solubility, which is beneficial for ensuring the bioactivity of pesticide. The AV@Ti₃C₂ nanoformulation showed pH responsive slow-release behavior, overcoming the burst-release of conventional AV formulations. Besides, AV@Ti₃C₂ possessed excellent photostability under UV irradiation, which prolonged the persistent period of AV. Therefore, AV@Ti₃C₂ performed sustaining and enhanced antipest activity, according to the bioactivity assay. Furthermore, AV@Ti₃C₂ showed satisfactory biosafety, with no negative effect to the germination and growth of maize. Our current research provides a potential candidate, AV@Ti₃C₂, for pest control, and also broadens the application of 2D MXene materials in plant protection and sustainable agriculture.

中文翻译：

用于持续释放和增强害虫控制的基于 MXene (Ti3C2) 的农药输送系统

基于多功能纳米材料的农药输送系统为农药的有效利用提供了强有力的策略。我们在这里展示了二维 MXene (Ti ₃ C ₂ ) 纳米材料在农药输送和植物保护中的应用。阿维菌素 (AV) 是一种疏水且不稳定的杀虫剂，被选为模型农药。在我们的研究中，AV@Ti ₃ C ₂是由 AV 快速吸附在 Ti ₃ C ₂上形成的，最大负载量为 81.44%。与疏水性AV相比，AV@Ti ₃ C ₂的水溶性显着提高，有利于保证农药的生物活性。AV@Ti ₃C ₂纳米制剂表现出对pH 敏感的缓释行为，克服了传统AV 制剂的突释。此外，AV@Ti ₃ C ₂在紫外光照射下具有优异的光稳定性，延长了AV的持续时间。因此，根据生物活性测定，AV@Ti ₃ C _{2具有持续和增强的抗虫活性。}此外，AV@Ti ₃ C ₂表现出令人满意的生物安全性，对玉米的发芽和生长没有负面影响。我们目前的研究提供了一个潜在的候选者，AV@Ti ₃ C ₂，用于害虫防治，还拓宽了 2D MXene 材料在植物保护和可持续农业中的应用。

更新日期：2021-09-20

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