Preparation and investigation of poly(methylmethacrylate) nano-capsules containing haloxyfop-R-methyl and their release behavior

Date

2019-12-06

Author

Mahmoudian, Mehdi
Torbati, Samaneh
AliMirzayi, Neda
Nozad, Ehsan
Kochameshki, Mahmoud Ghasemi
Shokri, Aref

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In this study, the preparation and characterization of haloxyfop-R-methyl herbicide loaded in poly(methylmethacrylate) (PMMA) nano-capsules by emulsion polymerization and its release behavior were investigated. The chemical characterizations of PMMA/haloxyfop-R-methyl nano-capsules were confirmed by FT-IR spectroscopy method, and the surface morphology was studied by field emission scanning electron microscopy and transmission electron microscopy. Also, the herbicide loading and encapsulation efficiency were analyzed for the herbicide-loaded nano-capsules. The release rate of PMMA/haloxyfop-R-methyl nano-capsules was determined by UV-visible spectroscopy. The thermal properties and thermal stability of nano-capsules were explored by the thermal gravimetric analysis method. The diameter of the nano-capsules was in the range of 100-300 nm. Increasing the amount of herbicide in nano-formulations significantly affected the surface of the nano-capsules and reduced their surface smoothness. Triton-X100 was identified as the best surfactant for the preparation of nano-capsules, and the sample containing the lowest herbicide content showed the best performance in terms of encapsulation and loading efficiency. This sample showed a steady-state release rate during the six days.

Subject Keywords

Food Science, Pollution, General Medicine

URI

https://hdl.handle.net/11511/68368

Journal

JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES

DOI

https://doi.org/10.1080/03601234.2019.1692614

Collections

Department of Chemical Engineering, Article

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Citation Formats

M. Mahmoudian, S. Torbati, N. AliMirzayi, E. Nozad, M. G. Kochameshki, and A. Shokri, “Preparation and investigation of poly(methylmethacrylate) nano-capsules containing haloxyfop-R-methyl and their release behavior,” JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES, pp. 301–309, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/68368.