Multiresponsive Zein Nanospheres for Avermectin B2 Delivery: Enhancing Root-Knot Nematode Control and Safety to Nontarget Organisms

文献类型： 外文期刊

第一作者： Ding, Xiquan

作者： Ding, Xiquan;Du, Qian;Gao, Fei;Chen, Long;Wang, Tingyu;Chen, Fangyuan;Zeng, Zhanghua;Wang, Yan;Cui, Haixin;Cui, Bo

作者机构：

关键词： root-knot nematode; multiresponsive nanosphere; zein; efficacy; biosafety

期刊名称：ACS NANO （ 影响因子：16.0； 五年影响因子：16.4 ）

ISSN： 1936-0851

年卷期： 2025 年 19 卷 16 期

页码：

收录情况： SCI

摘要： Root-knot nematodes are globally prevalent plant-parasitic pests, distinguished by their widespread distribution, extensive host range, and challenging control measures. Avermectin B2, one of the few effective nematicides available, faces limitations in efficacy and poses environmental concerns due to its eco-unfriendly composition and poor utilization in traditional emulsifiable concentrate (EC) formulations. In this study, we developed core-shell structured Ave B2-BS@Zein@SC nanospheres, incorporating zein as the carrier, sodium caseinate as the stabilizer, and butyl stearate as the temperature "switch". These nanospheres demonstrated multiresponsive characteristics to temperature, pH, and enzymatic conditions, facilitating rapid pesticide release under elevated temperatures, mildly acidic or alkaline conditions, and in the presence of protease. These controlled-release properties effectively responded to both environmental factors during nematode outbreaks and the intestinal conditions of the nematodes, enhancing pesticide targeting and utilization efficiency. The engineered nanospheres improved the mobility and stability of avermectin B2 in soil, enabling more comprehensive control of nematodes across broader and deeper soil layers. Additionally, the penetration capability of Ave B2-BS@Zein@SC into plant roots effectively eliminated nematodes that had already invaded the root system, thereby strengthening crop protection. Crucially, Ave B2-BS@Zein@SC demonstrated enhanced safety for nontarget organisms. This environmentally conscious, and multiresponsive pesticide nanodelivery system presents a promising strategy for sustainable subterranean pest management.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序