Utilization of environmental waste cyanobacteria as a pesticide carrier: Studies on controlled release and photostability of avermectin

Yan, Yongsheng; Hou, Hongwei; Ren, Tianrui; Xu, Yisheng; Wang, Quanxi; Xu, Wenping

doi:10.1016/j.colsurfb.2012.07.043

Cited by 42 publications

(18 citation statements)

References 51 publications

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“…However, numerous research studies have shown that avermectin is susceptible to oxidation and photolysis, resulting in instability under UV irradiation and a short half-life. 6 Zhiren Han et al prepared urea-formaldehyde resin microcapsules via an in situ polymerization method and demonstrated that avermectin microcapsules had sustainedrelease characteristics. 3 To solve these problems, intense research activity has recently been focused on the development of a controlled-release formulation with unique properties.…”

Section: Introductionmentioning

confidence: 99%

Study on the UV-shielding and controlled-release properties of a polydopamine coating for avermectin

Sheng

Zhang

et al. 2015

New J. Chem.

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Avermectin is susceptible to oxidation and photolysis, resulting in instability under UV irradiation and a short half-life. To solve this problem, many materials have been used to prevent the photodegradation of avermectin, but the complexity of the preparation process, the difficultly in biodegradation and the residual organic solvents, hinder their practical application. Fortunately, PDA emerged with negligible toxicity, environmental friendliness, extraordinary biocompatibility, and good adhesion, and it is widely used, especially as an UV-shielding material, which implies its huge potential in pesticides as a preferred candidate to melanin but this has never been reported. Herein, a gentle and flexible approach to the preparation of PDA coated avermectin was developed, to protect avermectin from photodegradation, through the oxidation self-polymerization of dopamine. The thickness of the polymer coating was controlled using a multistep deposition technique. The as-prepared products were used to study the effects of the coating thickness on the controlled-release and the UV-shielding property for avermectin. The results showed that the release rate of avermectin could be tailored using the thickness of the PDA layer. Most importantly, the PDA coating exhibited remarkable UV-shielding properties for avermectin, and the UV protection of the PDA layer for avermectin was improved with the coating getting thicker. Therefore, the system has a promising future in practical applications, so as to achieve sustained release and prevent the photodegradation of pesticides.

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Section: Introductionmentioning

confidence: 99%

Study on the UV-shielding and controlled-release properties of a polydopamine coating for avermectin

Sheng

Zhang

et al. 2015

New J. Chem.

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“…Pereira et al Torres 2007). In the middle of the last decade, research started being widespread focusing particularly on the controlled release of pesticides in both theoretical and experimental directions (Yan et al 2013). Encapsulation of pesticides by natural polymers (starch, for instance) has received much attention recently (El Bahri and Taverdet 2005;Chen et al 2008;Jerobin et al 2012).…”

Section: Controlled-or Slow-release Systems Applied To Pesticidesmentioning

confidence: 99%

Nanotechnologies in Food and Agriculture

Rai¹,

Ribeiro²,

Mattoso³

et al. 2015

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“…Yan et al . used environmental waste cyanobacteria powder as a carrier to control the release of AVM and effectively improve its photostability . Li et al .…”

Section: Introductionmentioning

confidence: 99%

“…12 Yan et al used environmental waste cyanobacteria powder as a carrier to control the release of AVM and effectively improve its photostability. 17 Li et al encapsulated AVM using anionic sodium lignosulfonate and cationic cetyltrimethylammonium bromide. 18 Isolated soy protein (ISP), usually extracted from defatted soy flour during soybean oil production is extensively employed as careers in different controlled-release formulations.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of pH‐responsive isolated soy protein/carboxymethyl chitosan microspheres for sustained pesticide release

Chen

Zhou

Lin

et al. 2019

J of Applied Polymer Sci

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In order to improve the utilization rate of avermectin (AVM), a complex was prepared by electrostatic self‐assembly using isolated soy protein (ISP) and carboxymethyl chitosan (CMCS) for loading AVM to obtain ISP/CMCS@AVM microspheres. The encapsulation efficiency (EE), sustained release property, ultraviolet (UV) protective ability, and toxicity of the microspheres were evaluated, and the release kinetics of AVM from the microsphere at different pHs were investigated. The results demonstrated that the average particle size of ISP/CMCS@AVM was 283.95 nm, and the EE reached 88.42% for AVM after denaturation. After 70 h of exposure to UV light, the residual rate of AVM in ISP/CMCS@AVM was 78.12%, which was significantly higher than 35.18% in the AVM emulsion. Moreover, the formulation imparted pH sensitivity and sustained‐release property to AVM and was consistent with the Korsmeyer–Peppas model, controlled by Fick diffusion. Finally, the insecticidal toxicity of ISP/CMCS@AVM did not differ significantly from that of unmodified AVM. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48358.

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Utilization of environmental waste cyanobacteria as a pesticide carrier: Studies on controlled release and photostability of avermectin

Cited by 42 publications

References 51 publications

Study on the UV-shielding and controlled-release properties of a polydopamine coating for avermectin

Study on the UV-shielding and controlled-release properties of a polydopamine coating for avermectin

Nanotechnologies in Food and Agriculture

Synthesis of pH‐responsive isolated soy protein/carboxymethyl chitosan microspheres for sustained pesticide release

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