Preparation and characterization of enzyme-responsive emamectin benzoate microcapsules based on a copolymer matrix of silica–epichlorohydrin–carboxymethylcellulose

Guo, Minjie; Zhang, Wenbing; Ding, Guanglong; Guo, Dong; Zhu, Juanli; Wang, Baitao; Punyapitak, Darunee; Cao, Yongsong

doi:10.1039/c5ra17901g

Cited by 95 publications

(69 citation statements)

References 45 publications

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“…Emamectin benzoate, a macrocyclic lactone insecticide (Figure 1), is a semisynthetic derivative of the avermectins [16][17][18]. It shows a broad spectrum, high efficiency, and low toxicity, which is further improved with thermal stability than avermectin [19]. Because its water solubility is extremely low (24 mg/L −1 ), the dominant formulation of emamectin benzoate is still EC at present with low pesticide content and a large amount of organic solvent [20].…”

Section: Introductionmentioning

confidence: 99%

Preparation and Evaluation of Emamectin Benzoate Solid Microemulsion

Feng

Cui

Yang

et al. 2016

Journal of Nanomaterials

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The solid microemulsions of emamectin benzoate with the same content of surfactants were prepared by a self-emulsifying method. Emulsifier 600 # and emulsifier 700 # (3/2, w/w) screened from eleven kinds of commonly used surfactants displayed great emulsifying properties. The redispersed solution of the solid microemulsion presented aqueous microemulsion characteristic. The mean particle size and polydispersity index were 10.34 ± 0.10 nm and 0.283 ± 0.013, respectively. The solid microemulsion showed excellent storage stability and the bioassay compared with water dispersible granules against diamondback moths provided a proof of its improved biological activities. This formulation could significantly reduce surfactants and is perspective in plant protection for improving bioavailability and environmental friendliness.

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Section: Introductionmentioning

confidence: 99%

Preparation and Evaluation of Emamectin Benzoate Solid Microemulsion

Feng

Cui

Yang

et al. 2016

Journal of Nanomaterials

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“…Microcapsules, one of the controlled release techniques, have been used in many fields, such as food, medicine, pesticides, environmental engineering, biological Engineering, cosmetics, and coatings, among others. A controlled release formulation, microcapsules are small particles with sizes between 1 and 100 μm that contain an active agent encapsulated by a natural membrane or a polymeric membrane synthesized by physical methods, chemical methods, or a combination of these methods.…”

Section: Introductionmentioning

confidence: 99%

Study on the preparation, characterization, and release behavior of carbosulfan/polyurethane microcapsules

Wang

Tong

et al. 2016

J of Applied Polymer Sci

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Polyurethane, a controlled release material, has been widely applied in many fields due to its high thermal and mechanical stability, corrosion resistance, and low cost. In this article, we prepared carbosulfan/polyurethane microcapsules by an interfacial polymerization method using modified isocyanate as the precursor and triethanolamine as a curing agent. The microcapsules were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis, and their release kinetics, chemical stability, and the safety of wheat seeds coating were also detected. The microcapsules had an excellent encapsulation efficiency and loading ability for carbosulfan ∼96.23% and 50%, respectively. Furthermore, the microcapsules improved the chemical stability of the carbosulfan and exhibited an excellent sustained release property (above 30 days), which controlled the carbosulfan and carbofuran at an appropriate level for reducing the adverse effects on the environment and agricultural products. The coated wheat seeds germination rate test showed that compared with the emulsifiable concentrate, the microcapsules almost had no effect on the germination rate, plant height, and root length. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43844.

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“…The diversity in structure, activity, biodegradability and the eco-friendly properties make these proposed microbial derivatives, agricultural active agents of the future generation [32]. Also, emamectin benzoate is safe towards non target organisms, as well as it has low residue and environmental pollution [33][34][35][36]. The both components of emamectin have similar structure; thus, their physicochemical properties, fate, and toxicity pro iles are almost to be similar.…”

Section: Environmental Aspects Of Emamectin Benzoatementioning

confidence: 99%