Glutathione-Responsive Pyraclostrobin-Loaded Polyurea Microcapsules for Their Intelligent Controlled Release

Wang, Jian; Wang, Rong; Shi, Zefeng; Zeng, Rong; Ren, Tianrui

doi:10.1021/acs.jafc.1c08182

Cited by 24 publications

(20 citation statements)

References 35 publications

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“…Stimuli-responsive systems for “on-demand” release cargos respond to trigger factors such as pH 10 , 11 , temperature, UV light 12 , redox 13 , and magnetic and electric mediators 14 , 15 . Glutathione (GSH) is a key antioxidant that extensively distributes in various organisms due to its high antioxidant properties 16 , 17 . The disulfide bond (–S–S–) is destroyed by the reductive hydrogen in the sulfhydryl group (–SH–) in GSH, and then reduced to the sulfhydryl group 18 , 19 .…”

Section: Introductionmentioning

confidence: 99%

A functional bimodal mesoporous silica nanoparticle with redox/cellulase dual-responsive gatekeepers for controlled release of fungicide

Huang

Pan

et al. 2023

Sci Rep

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Integrating toxic fungicide into a functional stimuli-responsive nanosystem can effectively improve the fungus control specificity and reduce the effect on non-target organisms. We report here a redox and cellulase dual-responsive multifunctional nanoparticle based on bimodal mesoporous silica (BMMs) to deliver prochloraz (Pro) for the smart management of wilt disease (Pro-AC-SS-BMMs, known as P-ASB). The surface of the nanocarrier was modified with an aminosilane coupling agent, and Pro was encapsulated by physical adsorption using 2,2′-dithiodiacetic acid as a smart bridge and disulfide (SS) cross-linked aminocellulose (AC) as gatekeepers. P-ASB nanoparticles (NPs) had a spherical structure, and the size was 531.2 ± 4.9 nm. The loading rate of Pro was 28.5%, and the NPs possessed excellent redox/cellulase dual-responsive release characteristics in the presence of glutathione (GSH) and cellulase. The nanocarrier could effectively protect Pro against photodegradation and had better foliar wettability than the Pro technical. Fluorescence tracer results showed that the nanocarriers were taken up and activated by the mycelium. P-ASB NPs had better control efficacy against Rhizoctonia solani and had no significant toxicity to cells and bacteria. This study provides a new strategy for enhancing the environmental protection and promoting the development of green agriculture.

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Section: Introductionmentioning

confidence: 99%

A functional bimodal mesoporous silica nanoparticle with redox/cellulase dual-responsive gatekeepers for controlled release of fungicide

Huang

Pan

et al. 2023

Sci Rep

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“…Hence the shell-encapsulated pesticides can effectively prevent leakage and photo-induced degradation. [8][9][10] The emulsion template method has shown potential in the preparation of microcapsules. 11 The conventional pesticide-loaded emulsions are generally prepared in the presence of surfactants by reducing interfacial tension 12 and consequently showed drawbacks caused by the widespread use of petrochemicals, including synthetic emulsifiers and organic phases.…”

Section: Introductionmentioning

confidence: 99%

A pesticide sustained‐release microcapsule from cellulose nanocrystal stabilized Pickering emulsion template

Yang

Zhang

et al. 2023

J of Applied Polymer Sci

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Efficient utilization of pesticides has presented various advantages in the ecological environment, food safety, and agricultural sustainability. Pesticide microcapsule could significantly improve the pesticide utilization ratio, and thus, we prepared a sustained-release microcapsule from cellulose nanocrystal (CNCs) stabilized Pickering emulsion template. The NaCl was added to overcome the strong electrostatic repulsion among CNCs for forming a stable oil-in-water (O/W) CNCs-based Pickering emulsion template, followed by crosslinking with hexamethylene diisocyanate on the interface. UV-vis and zeta-potential were used to characterize the as-prepared Pickering emulsion, and the stability and emulsion fraction were calculated. Results indicated that NaCl contributed to the stability of Pickering emulsion, even at a low concentration. The obtained CNCs-based microcapsule was characterized by FT-IR, XRD, SEM, TG-DTG, and three-phase contact angles. The microcapsule presented an encapsulation efficiency of 96.76% and sustained release of the imidacloprid for more than 82 h. Results indicated the potential for loading and sustained release of imidacloprid, which is beneficial to the environment, food, and agriculture.

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“…Stimuli responsive PDSs can effectively regulate pesticide release according to environmental stimuli, which is beneficial for controllable and accurate drug delivery. − Among them, pH is the most common environmental stimulus . Carboxymethyl cellulose (CMC) is a natural polymer with good biocompatibility.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Zr-Based MOF for Pesticide Delivery: Ultrahigh Loading Capacity, pH-Responsive Release, Improved Leaf Affinity, and Enhanced Antipest Activity

et al. 2022

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The stimuli responsive pesticide delivery system (PDS) has drawn increasing attention in recent years, a system which can effectively improve the utilization of pesticides. In the current research, we report a pH responsive PDS by using carboxymethyl cellulose (CMC) modified Zr-based metal organic frameworks (UiO-66-NH2) as the nanocarrier for acetamiprid (ATP). UiO-66-NH2-CMC possesses a large surface area and abundant pores, which can effectively load ATP, and the loading rate is as high as 90.79%. Compared with free ATP, the ATP@UiO-66-NH2-CMC nanopesticide exhibits pH responsive controlled release behavior, and the pesticide can sustained release to the medium. In addition, it also shows improved leaf affinity, which makes it easier to wet the leaf surface and improve the utilization of pesticide. Therefore, ATP@UiO-66-NH2-CMC displays better antipest activity against aphids than free ATP does. Meanwhile, ATP@UiO-66-NH2-CMC shows no negative effects on the germination and growth of maize, showing good biosafety. Moreover, the ATP@UiO-66-NH2-CMC nanopesticide does not contain any toxic organic solvents or additives. Therefore, we hope that it can be a suitable candidate for plant protection and sustainable agriculture.

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Glutathione-Responsive Pyraclostrobin-Loaded Polyurea Microcapsules for Their Intelligent Controlled Release

Cited by 24 publications

References 35 publications

A functional bimodal mesoporous silica nanoparticle with redox/cellulase dual-responsive gatekeepers for controlled release of fungicide

A functional bimodal mesoporous silica nanoparticle with redox/cellulase dual-responsive gatekeepers for controlled release of fungicide

A pesticide sustained‐release microcapsule from cellulose nanocrystal stabilized Pickering emulsion template

Environmentally Friendly Zr-Based MOF for Pesticide Delivery: Ultrahigh Loading Capacity, pH-Responsive Release, Improved Leaf Affinity, and Enhanced Antipest Activity

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