Abstract
Insufficient deposition of pesticide droplets is a major factor contributing to ineffective control of agriculture. Improving the deposition of colloidal particle as agricultural delivery system is very important. Herein, supra-amphiphilic soft template was programmed by recognizing host–guest molecules on emulsion droplet surface. The supra-amphiphilic interfacial system possessed self-regulated amphiphilicity by modulating aggregation/disaggregation of supra-amphiphiles responding to redox-stimulus to control interface flexibility/functionalization characteristics of supramolecular colloids. This interface adjustability of hierarchical colloids greatly facilitated their prediction, control of corresponding targeting interfacial interaction responses of leaves. Then hierarchical particles exhibited a topology, pliability that allowed them to adapt to the micro/nanostructures of leaf surfaces, thus facilitating easier passage into the targeted pathogens. In vitro plot experiments, the supra-amphiphilic colloid with flexibility performed greatest antifungal capabilities against Botrytis Cinerea, reaching up to 88.65%, even after multiple rain erosions. Modulating the interfacial interactions towards hierarchical targets technically inspired a new green, sustainable agricultural application.
Published Version
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