Open AccessPreparation and Properties of Pesticide-loaded Carboxymethyl Chitosan Microsphere
Author(s) -
Qing Xu,
Daibo Wang,
Guohua Liu,
Changrui Yan,
Jian Yang,
Fude Nie
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1637/1/012056
Subject(s) - glutaraldehyde , microsphere , chitosan , pesticide , controlled release , environmental pollution , chemistry , materials science , chromatography , chemical engineering , nanotechnology , environmental science , organic chemistry , agronomy , environmental protection , engineering , biology
Controlled release system has been widely developed and used in agriculture to improve efficacy and minimize environmental pollution. Here, the pesticide-loaded carboxymethyl chitosan microspheres were constructed by suspension-crosslinking method. Carboxymethyl chitosan was used as a carrier to formulate microsphere to load neonicotinoids with a mixture of calcium chloride and glutaraldehyde as double-component cross-linking agent. The resulting microsphere processed high drug loading and encapsulation efficiency with a mean diameter of 1 mm. The UV detection method of pesticide was established, which was convenient and quick. The pesticides release properties of the microspheres were investigated, and the controlled release time was more than 6 days, which achieves the objective of improving the efficacy of the pesticides. This work would promote the development of controlled-release pesticide systems.