Pesticide carrier systems are highly desirable in achieving the effective utilization of pesticides and reduction of their loss. In order to increase utilization and enhance pesticide adhesion to harmful targets, adhesive and stimulus-responsive nanocomposites were prepared using graphene oxide (GO) and polydopamine (PDA). The results demonstrated that graphene oxide with a layer of PDA had a high hymexazol-loading capacity. The release curve of hymexazol from the nanocomposite showed that the release was NIR-laser-dependent and pH-dependent. The adhesion-performance investigation demonstrated that Hy-GO@PDA exhibited greater hymexazol persistence than a hymexazol solution after a simulated-rainwash experiment, and it also left more hymexazol residue than a hymexazol solution with a surfactant under high concentrations. Finally, the bioactivity of the prepared hymexazol-loaded nanocomposite was measured against Fusarium oxysporum f. sp. cucumebrium Owen, and it showed an inhibition activity similar to that of the hymexazol solution. All of these revealed that GO with a PDA layer could serve as pesticide carrier to solve low-utilization and wash-off problems, especially for water-soluble pesticides.

10.1021/acs.jafc.7b05500

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Polymer Degradation and Stability (2014)

Yanlong Liu Jun Shao Jingru Sun Xinchao Bian Lidong Feng

Plasticizer

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Elongation

10.1016/j.polymdegradstab.2014.01.023

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Polymer Testing (2019)

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10.1016/j.polymertesting.2019.106211

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Chinese Journal of Polymer Science (2018)

Sheng Xiang Dongdong Zhou Lidong Feng Xinchao Bian Gao Li

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10.1007/s10118-019-2202-7

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The morphology and spherulite growth of PLA stereocomplex in linear and branched PLLA/PDLA blends: effects of molecular weight and structure

CrystEngComm (2015)

Jun Shao Yanmei Guo Sheng Xiang Dongdong Zhou Xinchao Bian

In the linear and three armed PLLA/PDLA blends, theGvalue increased firstly, then decreased asM_n,PLAincreased, andGreduced as three armed PLAs added.

Spherulite (polymer physics)

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10.1039/c5ce02017d

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Citations (35)