Copper Ion-Chelated and Polydopamine-Modified Hydroxypropyl Methylcellulose Nanoparticles with Multiple Responses for Intelligent Pesticide Release and Improved Foliar Deposition DOI

Yanjun Dong,

Sai‐Nan Guo,

Jun Lu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Intelligent controlled-release nanopesticides have been a crucial tactic in advanced precision agriculture during the past few years, which can improve pesticide utilization and reduce environmental pollution. Herein, novel hydroxypropyl methylcellulose-based nanopesticide carrier (PCH) with pH-/enzyme-/near-infrared multiple responses was constructed by initial cross-linking dimethyl diallyl ammonium chloride subsequent copper ion chelation polydopamine coating. Avermectin (Av) further loaded to create intelligent release system (APCH) antisolvent precipitation. The of APCH increases under near-infrared light (NIR) conditions, an accumulative that is 3.26 times higher than without NIR. contact angles on cabbage leaves are 33 29% lower those water technical Av (Av-tech), respectively, verifying has good wettability property. Simultaneously, displays better insecticidal activity formulations because its outstanding ultraviolet (UV) stability Av. degradation rate less 2% 50 h UV light, considerably Av-tech (∼60%). biosafety assessments manifest PCH remarkable biological safety growth nontarget organisms certain range. Overall, bio-friendly multiple-response behaviors, excellent stability, foliar deposition performance, offer new strategy for sustainable agricultural development.

Language: Английский

Copper Ion-Chelated and Polydopamine-Modified Hydroxypropyl Methylcellulose Nanoparticles with Multiple Responses for Intelligent Pesticide Release and Improved Foliar Deposition DOI

Yanjun Dong,

Sai‐Nan Guo,

Jun Lu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 8, 2024

Intelligent controlled-release nanopesticides have been a crucial tactic in advanced precision agriculture during the past few years, which can improve pesticide utilization and reduce environmental pollution. Herein, novel hydroxypropyl methylcellulose-based nanopesticide carrier (PCH) with pH-/enzyme-/near-infrared multiple responses was constructed by initial cross-linking dimethyl diallyl ammonium chloride subsequent copper ion chelation polydopamine coating. Avermectin (Av) further loaded to create intelligent release system (APCH) antisolvent precipitation. The of APCH increases under near-infrared light (NIR) conditions, an accumulative that is 3.26 times higher than without NIR. contact angles on cabbage leaves are 33 29% lower those water technical Av (Av-tech), respectively, verifying has good wettability property. Simultaneously, displays better insecticidal activity formulations because its outstanding ultraviolet (UV) stability Av. degradation rate less 2% 50 h UV light, considerably Av-tech (∼60%). biosafety assessments manifest PCH remarkable biological safety growth nontarget organisms certain range. Overall, bio-friendly multiple-response behaviors, excellent stability, foliar deposition performance, offer new strategy for sustainable agricultural development.

Language: Английский

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