Fabrication of a sustained release delivery system for pesticides using interpenetrating polyacrylamide/alginate/montmorillonite nanocomposite hydrogels

He, Furui; Zhou, Qingfeng; Wang, Longzheng; Yu, Gaobo; Li, Jiacheng; Ye, Feng

doi:10.1016/j.clay.2019.105347

Cited by 81 publications

(39 citation statements)

References 52 publications

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“…In addition, carbaryl, a carbamate insecticide, has been banned in Europe ( Pesticide Action Network 2008 ). Controlled-release formulations can reduce their harmful effects ( He et al 2019 ). In addition to contact insecticides, controlled-release formulations have been used to deliver fertilizers to plants ( Sabadini et al 2015 ).…”

Section: Controlled Releasementioning

confidence: 99%

“…Hydrogels are defined as two- or multi-component systems consisting of a three-dimensional network structure with the ability to absorb a large volume of water and expand their volume without being dissolved ( Işıklan 2007 , Ahmed 2015 ). They can be made from natural or synthetic polymers, or combinations of the two ( He et al 2019 ). Synthetic hydrogels are usually acrylate- and polyacrylamide-based while natural hydrogels are made of alginates, carboxymethyl cellulose, chitosan, pectin, or other products ( Ahmed 2015 ).…”

Section: Hydrogelsmentioning

confidence: 99%

“…Due to the increasing attention of environmental issues, biodegradable hydrogels have become preferred over the synthetic ones in some situations. Renewability, biocompatibility, and nontoxicity of biodegradable hydrogels make them an attractive option for agricultural applications, such as retaining moisture ( Montesano et al 2015 ) and controlling insect pests ( Rudzinski et al 2002 , He et al 2019 ). However, Ahmed (2015) also argued that natural hydrogels have been gradually replaced by synthetic hydrogels due to the higher water absorption capacity and gel strength of the latter.…”

Section: Hydrogelsmentioning

confidence: 99%

“…There are many approaches of pest management that have been developed to target the needs of these different environments. For example, controlled-release formulations provide slow and controlled release of active ingredients (AIs) commonly used in agriculture for the past few decades, reducing pesticide levels in the environment unlike traditional pesticide formulations ( Roy et al 2014 , He et al 2019 ). Additionally, insecticides can be formulated as a spray or combined with a phagostimulant as a bait.…”

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confidence: 99%

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Hydrogels: From Controlled Release to a New Bait Delivery for Insect Pest Management

Tay

Choe

Mulchandani

et al. 2020

Journal of Economic Entomology

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Here, we review the literature on the development and application of hydrogel compounds for insect pest management. Researchers have used hydrogel compounds for the past few decades to achieve the controlled release of various contact insecticides, but in recent years, hydrogel compounds have also been used to absorb and deliver targeted concentrations of toxicants within a liquid bait to manage insect pests. The highly absorbent hydrogel acts as a controlled-release formulation that keeps the liquid bait available and palatable to the target pests. This review discusses the use of various types of hydrogel compounds in pest management based on different environmental settings (e.g., agricultural, urban, and natural areas), pest systems (e.g., different taxa), and modes of insecticide delivery (e.g., spray vs bait). Due to their unique physicochemical properties, hydrogel compounds have great potential to be developed into new and efficacious pest management strategies with minimal environmental impact. We will also discuss the future research and development of hydrogels in this review.

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Section: Controlled Releasementioning

confidence: 99%

Section: Hydrogelsmentioning

confidence: 99%

Section: Hydrogelsmentioning

confidence: 99%

mentioning

confidence: 99%

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Hydrogels: From Controlled Release to a New Bait Delivery for Insect Pest Management

Tay

Choe

Mulchandani

et al. 2020

Journal of Economic Entomology

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“…ethylcellulose-lignin, 62 polysaccharides-clay nanocomposites, [63][64] and macro to micro-sized spheres/beads obtained with various crosslinking agents [65][66] were primarily used as insecticide carrier. Though many reports were dealt with the macro-to micro-particles, 21,47 it has been shown that particle size reduction to nano-size exhibited pronounced E.E % and SPR % values due to more rooms (surface area) available for insecticide molecules to get entrapped.…”

mentioning

confidence: 99%

A Systematic Study to Unravel the Potential of using Polysaccharides based Organic Nanoparticles Versus Hybrid Nanoparticles for Pesticide Delivery

Mahajan¹,

Selim²,

Neethu³

et al. 2021

Preprint

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To daze conventional pesticide release limitations, nanotechnology-mediated pesticide delivery using natural polymers has been actively investigated. However, the lack of information on what are the beneficial/non-beneficial aspects of using hybrid-and organicnanoparticles (NP) and among the polysaccharides which are better suited concerning pesticide loading efficiency (PLE wt%), entrapment efficiency (E.E %), and sustained-pesticide-release (SPR %) has prompted us to investigate this study. In this report, we systematically investigated a series of polysaccharides such as starch (S), cellulose (C), aminocellulose (AC), and sodium carboxymethylcellulose (NaCMC) coated on magnetite NP (MNP, Fe3O4) and complete organic nanocarrier systems (starch and cellulose) that have no MNP part were compared for the PLE wt% and SPR % efficiencies for chlorpyrifos (ChP) insecticide. Overall, all nanocarriers (NCs) have shown good to excellent PLE wt% due to the smaller-sized NP obtained through optimal conditions. However, among the hybrid polysaccharides studied, starch MNP (S-MNP) has shown a maximum PLE of 111 wt% in comparison with other polysaccharides (80 -94 wt%) coated hybrid-NCs as well as with organic-NCs (81 -87 wt%).The use of inorganic support does improve the PLE wt% markedly for starch but not for 2 cellulose derivatives. Similarly, the SPR results of S-NP showed a remarkably better sustainedrelease profile for ChP of % in 14 days. In contrast, other unfunctionalized and functionalized celluloses exhibited poor release profiles of 60 -% for the same period. This study may help the researchers choose the right system for designing and achieving enhanced pesticide efficiency.

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Recent Strategies for Strengthening and Stiffening Tough Hydrogels

Kim

2021

Advanced NanoBiomed Research

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Hydrogels are major components of the human body. To replace a damaged hydrogel in the body or support/monitor its normal operation, artificial hydrogels similar to those found in nature are required. As the development of morphologically adaptable soft yet tough hydrogels such as double‐network (DN) and polyampholyte (PA) gels, they are applied to soft tissues such as the neural and epithelial tissues with elastic moduli ranging from a few pascals to several kilopascals. However, creating strong and stiff hydrogels emulating stiff load‐bearing connective tissues with elastic moduli in the MPa‐to‐GPa range remains challenging. Herein, recent strategies and potential methods for strengthening and stiffening tough DN and PA gels (such as the reinforcement addition, polymer chain alignment, and solvent exchange) as well as the reinforcing and fracture mechanisms of the resulting hydrogels are summarized. The objective is to provide some insights into the optimal strategy and method for fabricating hydrogels with a combination of strength, stiffness, and toughness, which can emulate natural load‐bearing tissues.

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Fabrication of a sustained release delivery system for pesticides using interpenetrating polyacrylamide/alginate/montmorillonite nanocomposite hydrogels

Cited by 81 publications

References 52 publications

Hydrogels: From Controlled Release to a New Bait Delivery for Insect Pest Management

Hydrogels: From Controlled Release to a New Bait Delivery for Insect Pest Management

A Systematic Study to Unravel the Potential of using Polysaccharides based Organic Nanoparticles Versus Hybrid Nanoparticles for Pesticide Delivery

Recent Strategies for Strengthening and Stiffening Tough Hydrogels

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