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作者:

Pan, Hua (Pan, Hua.) | Huang, Weilan (Huang, Weilan.) | Wu, Litao (Wu, Litao.) | Hong, Qihao (Hong, Qihao.) | Hu, Zhongxuan (Hu, Zhongxuan.) | Wang, Meijing (Wang, Meijing.) | Zhang, Fang (Zhang, Fang.)

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Scopus SCIE

摘要:

Integrating pesticides and mineral elements into a multi-functional stimuli-responsive nanocarrier can have a synergistic effect on protecting plants from pesticides and the supply of nutrients. Herein, a pH dual-responsive multifunctional nanosystem regulated by coordination bonding using bimodal mesoporous silica (BMMs) as a carrier and coordination complexes of ferric ion and polymethacrylic acid (PMAA/Fe3+) as the gatekeeper was constructed to deliver prochloraz (Pro) for the smart treatment of wilt disease (Pro@BMMs-PMAA/Fe3+). The loading capacity of Pro@BMMs-PMAA/Fe3+ nanoparticles (Nps) was 24.0% and the "PMMA/Fe3+" complexes deposited on the BMMs surface could effectively protect Pro against photodegradation. The nanoparticles possessed an excellent pH dual-responsive release behavior and better inhibition efficacy against Rhizoctonia solani. Fluorescence tracking experiments showed that Nps could be taken up and transported in fungi and plants, implying that non-systemic pesticides could be successfully delivered into target organisms. Furthermore, BMMS-PMAA/Fe3+ nanocarriers could effectively promote the growth of crop seedlings and had no obvious toxicological influence on the cell viability and the growth of bacteria. This study provides a novel strategy for enhancing plant protection against diseases and reducing the risk to the environment.

关键词:

pH-responsive release prochloraz biosafety micronutrient mesoporous silica nanoparticles

作者机构:

  • [ 1 ] [Pan, Hua]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 2 ] [Huang, Weilan]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 3 ] [Wu, Litao]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 4 ] [Hong, Qihao]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 5 ] [Hu, Zhongxuan]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 6 ] [Wang, Meijing]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 7 ] [Zhang, Fang]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China

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来源 :

NANOMATERIALS

年份: 2022

期: 4

卷: 12

5 . 3

JCR@2022

5 . 3 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:66

JCR分区:1

中科院分区:3

被引次数:

WoS核心集被引频次: 19

SCOPUS被引频次: 23

ESI高被引论文在榜: 0 展开所有

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