Cellulose Nanocrystal-based Pesticide Slow/Controlled-release Microcapsules Prepared by Pickering Emulsion Template Method

Dao-bin Kang; Er-min Zhou; Yi-lin Tan; Yong-jiang Li; Jiang-peng Wang; Jiu-yi Lang; Gui-yuan Zhao; De-qiang Li; Jun Li

doi:10.11777/j.issn1000-3304.2026.26076

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Cellulose Nanocrystal-based Pesticide Slow/Controlled-release Microcapsules Prepared by Pickering Emulsion Template Method

Research Article | 更新时间：2026-11-03

- Cellulose Nanocrystal-based Pesticide Slow/Controlled-release Microcapsules Prepared by Pickering Emulsion Template Method
- Acta Polymerica Sinica Pages: 1-20(2026)
- 作者机构：
  
  新疆农业大学化学化工学院乌鲁木齐 830052
- 作者简介：
  
  E-mail: junli107@163.com
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.26076
  CLC：
- Received：08 April 2026，
  
  Accepted：24 August 2026，
  
  Online First：03 November 2026，
- 稿件说明：
移动端阅览
康道斌, 周二敏, 谭忆林, 李涌江, 王江鹏, 郎玖逸, 赵桂圆, 李德强, 李君. 基于Pickering乳液模板法的纤维素纳米晶农药缓/控释微胶囊. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26076.

Kang, D. B.; Zhou, E. M.; Tan, Y. L.; Li, Y. J.; Wang, J. P.; Lang, J. Y.; Zhao, G. Y.; Li, D. Q.; Li, J. Cellulose nanocrystal-based pesticide slow/controlled-release microcapsules prepared by pickering emulsion template method. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26076.
康道斌, 周二敏, 谭忆林, 李涌江, 王江鹏, 郎玖逸, 赵桂圆, 李德强, 李君. 基于Pickering乳液模板法的纤维素纳米晶农药缓/控释微胶囊. 高分子学报, doi: 10.11777/j.issn1000-3304.2026.26076. DOI： CSTR： 32057.14.GFZXB.2026.7710.

Kang, D. B.; Zhou, E. M.; Tan, Y. L.; Li, Y. J.; Wang, J. P.; Lang, J. Y.; Zhao, G. Y.; Li, D. Q.; Li, J. Cellulose nanocrystal-based pesticide slow/controlled-release microcapsules prepared by pickering emulsion template method. Acta Polymerica Sinica (in Chinese), doi: 10.11777/j.issn1000-3304.2026.26076. DOI： CSTR： 32057.14.GFZXB.2026.7710.

摘要

当前农药研究与开发领域强调采用智能、精准以及环境友好的策略，旨在增强害虫防治效果并减少环境污染. 本研究以Pickering乳液为模板，通过原位自由基聚合构建了纤维素纳米晶基微胶囊(IMI@pH-DMAEMA MC)用于农药递送，该微胶囊可作为疏水性药物载体，实现农药的缓释及刺激响应性释放. 该微胶囊对IMI的包封效率(EE)达到95.05%，载药效率(LE)达到61.80%，且具有紫外线屏蔽性能可防止农药分子的自降解，在酸性条件(pH=5)下表现出酸响应释放. 耐雨水冲刷实验表明，IMI@pH-DMAEMA MC在棉花、番茄和卷心菜叶片表面的润湿性和滞留量均优于传统市售IMI乳油(EC). 与EC (LC

：32.035 mg/L)和IMI (LC

：42.760 mg/L)相比，IMI@pH-DMAEMA MC (LC

：10.607 mg/L)在针对防治棉蚜的效果评价实验中也表现出显著优势. 值得注意的是，IMI@pH-DMAEMA MC在初级生态毒性评价中展现出降低急性毒性、提高非靶标生物安全性的潜力. 生命周期评价(LCA)表明，与EC相比，IMI@pH-DMAEMA MC对环境的影响显著降低. 本研究构建了一种环境友好、可缓/控释农药且易于制备的农药递送系统，为智能农药输送提供一种有前景的策略，对推动农药精准施用及农业可持续发展具有重要意义.

Abstract

Current pesticide research and development emphasizes intelligent

precise

and environmentally friendly strategies aimed at enhancing pest control efficacy and reducing environmental pollution. In this study

cellulose nanocrystal-based microcapsules (IMI@pH-DMAEMA MC) were fabricated

via in situ

free-radical polymerization using Pickering emulsion templates for pesticide delivery. The microcapsules can serve as hydrophobic carriers

enabling sustained and stimuli-responsive pesticide release. The microcapsules achieved an encapsulation efficiency (EE) of 95.05% and a loading efficiency (LE) of 61.80% for IMI. They also exhibited UV-shielding properties that prevent the photodegradation of pesticide molecules and showed acid-responsive release under acidic conditions (pH=5). Rainfastness tests demonstrated that the wettability and retention of IMI@pH-DMAEMA MC on cotton

tomato

and

cabbage leaf surfaces were superior to those of conventional commercial IMI emulsifiable concentrate (EC). Compared with EC (LC

: 32.035 mg/L) and IMI (LC

: 42.760 mg/L)

IMI@pH-DMAEMA MC (LC

: 10.607 mg/L) exhibited significant advantages in efficacy evaluation against cotton aphids. Notably

preliminary ecotoxicity assessments showed that IMI@pH-DMAEMA MC has the potential to reduce acute toxicity and improve safety toward non-target organisms. Life cycle assessment (LCA) indicated that IMI@pH-DMAEMA MC had significantly lower environmental impacts than EC. Overall

this study developed an environmentally friendly

easy-to-prepare pesticide delivery system capable of sustained/controlled release

providing a promising strategy for smart pesticide delivery and contributing significantly to precision pesticide application and sustainable agricultural development.

关键词

Keywords

references

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College of Chemistry, Chemical Engineering and Biotechnology, Donghua University

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