Stimuli-responsive hydrogel as carrier for controlling the release and leaching behavior of hydrophilic pesticide

Xiang, Yuanjiang; Lu, Xingwen; Yue, Jiangtao; Zhang, Yan; Sun, Xiaoyue; Zhang, Guilong; Cai, Dongqing; Wu, Zhengyan

doi:10.1016/j.scitotenv.2020.137811

Cited by 54 publications

(17 citation statements)

References 34 publications

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“…The successful fabrication of biochar-based hydrogel microspheres was developed to prepare a pH and ion strength dual-stimuli responsive controlled-release system for hydrophilic pesticides (gentian violet). This work provided a simple and low-cost approach and preparation procedure that could regulate pesticide release behavior, reduce leaching losses, and enhance the utilization efficiency of pesticides [ 28 ]. Biochar prepared from rice husk (rBC) was used as a nanosorbent for the sustained delivery of 2,4-dichlorophenoxyacetic acid (2,4-D) and for its potential use as an eco-friendly nanoherbicide formulation (DrBC).…”

Section: Improving Crop Production Via Nanotechnology-enabled Innovationsmentioning

confidence: 99%

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

et al. 2021

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Intensive conventional agriculture and climate change have induced severe ecological damages and threatened global food security, claiming a reorientation of agricultural management and public policies towards a more sustainable development model. In this context, nanomaterials promise to support this transition by promoting mitigation, enhancing productivity, and reducing contamination. This review gathers recent research innovations on smart nanoformulations and delivery systems improving crop protection and plant nutrition, nanoremediation strategies for contaminated soils, nanosensors for plant health and food quality and safety monitoring, and nanomaterials as smart food-packaging. It also highlights the impact of engineered nanomaterials on soil microbial communities, and potential environmental risks, along with future research directions. Although large-scale production and in-field testing of nano-agrochemicals are still ongoing, the collected information indicates improvements in uptake, use efficiency, targeted delivery of the active ingredients, and reduction of leaching and pollution. Nanoremediation seems to have a low negative impact on microbial communities while promoting biodiversity. Nanosensors enable high-resolution crop monitoring and sustainable management of the resources, while nano-packaging confers catalytic, antimicrobial, and barrier properties, preserving food safety and preventing food waste. Though, the application of nanomaterials to the agri-food sector requires a specific risk assessment supporting proper regulations and public acceptance.

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Section: Improving Crop Production Via Nanotechnology-enabled Innovationsmentioning

confidence: 99%

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

et al. 2021

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“…Annually, 1–2.5 million tons of pesticides are applied, of which only 10% stay on the crops, and a significant amount is lost due to drift, which results in repeated pesticide spraying. Eventually causing nontarget accumulation leading to soil and groundwater pollution. , Engineered nanomaterials have shown huge potential in the agriculture sector by enhancing crop production, increasing pesticides efficiency, , and reducing environmental damage . In the conventional successful formulation like Bordeaux mixture, Cu plays an important role in crop disease control either as hydroxide, sulfate, or chloride salt. , The application of Cu salts cause the Cu accumulation in the field and leaching into freshwater bodies .…”

Section: Introductionmentioning

confidence: 99%

“…Hence, in the light of agro-pollution, a smart formulation that can hold the pesticide from leaching into the soil environment is desired along with leaf holding and targeted release function. Reference to the nanoformulation resistant to leaf holding and soil leaching, few excellent formulations were developed with biochar and attapulgite. , Few other formulations were limited to targeted release and reduced soil leaching property . Similarly, our earlier formulation were specific for the leaf holding and targeted release, thus ignored the soil perspective .…”

Section: Introductionmentioning

confidence: 99%

Triple-Smart Eco-Friendly Chili Anthracnose Control Agro-Nanocarrier

Sharma

Singh

Bindra

et al. 2021

ACS Appl. Mater. Interfaces

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Pesticide leaching and soil contamination are major issues in the present agriculture formulations. Hence, here 2D graphene oxide in combination with cationic, anionic, or nonionic polymers were tested for runoff resistance and targeted release behavior. Cationic polymer supplemented the binding of rGO on leaf surface by 30% more than control and reduced off-target leaching in soil by 45% more than control. Further, to enhance the fruit rot control caused by Colletotrichum capsici in chili crop, the rGO was decorated with Cu2–x Se nanocrystals, which provided combined disease control with captan. The chitosan coating in the nanocomposite added targeted pH-responsive fungal inhibition behavior and could reduce the C. capsici growth by ∼1/2 times compared to captan control.

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“…In the past several years, controlled-release pesticides (CRPs) have become a tremendous trend because of low loss, high UE, and low influence on the environment compared with traditional pesticides . Until now, plenty of CRPs responsive to pH, ion strength, light, and temperature have been developed using calcium alginate, chitosan, CuS, biochar, and so on. − However, these systems have several limitations in practical applications: (1) pH- and ion strength-responsive systems might influence nontarget organisms because of the addition of base, ion, or acid; (2) light- and temperature-responsive systems displayed high energy consumption and a complicated technique procedure. Consequently, developing a simple CRP with good environmental compatibility is necessary.…”

Section: Introductionmentioning

confidence: 99%

Alternating Magnetic Field-Responsive Nanoplatforms for Controlled Imidacloprid Release and Sustainable Pest Control

Zhou

Chen

Zhang

et al. 2021

ACS Sustainable Chem. Eng.

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In this study, an alternating magnetic field-responsive controlled-release imidacloprid (IM) nanoplatform (MRCIN) was fabricated by loading IM in yolk–shell Fe3O4@C. Fe3O4@C with a large BET surface area (312.62 m2/g) acted as a carrier for IM. Interestingly, the Fe3O4 nanoparticles in MRCIN could vibrate under varied electromagnetic fields (VEFs) to boost the release of IM. Therefore, MRCIN presented an excellent alternating magnetic field-responsive controlled-release performance via designing the frequency and voltage, which could be proved by the release curve and control efficacy experiment. After release, the existence of Fe3O4 nanoparticles was in favor of the collection of MRCIN from water. Importantly, MRCIN could be reutilized at least three times. From the viewpoint of biosafety, Fe3O4@C owned a fine biocompatibility, and MRCIN had little influence on fish and earthworm without VEF. Thus, the study provides a simple and potential way to achieve the controlled release of IM, improve utilization efficiency, and decline pollution to the environment. This system might have a good practical value in sustainable pest control and green agriculture.

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Stimuli-responsive hydrogel as carrier for controlling the release and leaching behavior of hydrophilic pesticide

Cited by 54 publications

References 34 publications

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

Triple-Smart Eco-Friendly Chili Anthracnose Control Agro-Nanocarrier

Alternating Magnetic Field-Responsive Nanoplatforms for Controlled Imidacloprid Release and Sustainable Pest Control

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