Fabrication of a pH-Responsively Controlled-Release Pesticide Using an Attapulgite-Based Hydrogel

Xiang, Yuanjiang; Zhang, Guilong; Chen, Chao-Wen; Liu, Bin; Cai, Dongqing; Wu, Zhengyan

doi:10.1021/acssuschemeng.7b03469

Cited by 143 publications

(95 citation statements)

References 52 publications

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“…15 Recently, the development of nano-pesticide formulations has been shown to improve pesticide performance by formulating nanoparticle-based delivery systems. [16][17][18][19][20][21][22][23][24][25] The pesticide nano-delivery systems with small size and large surface area improved the deposition on foliage and extended the release time. Moreover, in terms of the crop foliage microstructure, the nanoparticles surface can easily be modied by affinity groups to improve adhesion and decrease the loss from crop foliage.…”

Section: Introductionmentioning

confidence: 99%

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

Sun

Xue

et al. 2019

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

Sun

Xue

et al. 2019

RSC Adv.

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“…As shown in Figure 2e , the cumulative release rate of LNT highly increased from 33.7% to 99.5% following the increased Na + concentration from 0 to 0.8 M. The ion exchange between Na + and Ca 2+ strengthens the electrostatic repulsion between -COO -, which ultimately increases the swelling of the hydrogel to stimulate the release of LNT [32] .…”

Section: Sustainable Release Of Lnt and Calcium Ion Of Csl-gelmentioning

confidence: 91%

A lentinan-loaded hydrogel with core-shell structure induces broad-spectrum resistance against plant virus by activating the expression of CML30

Xiang

Xue

Wang

et al. 2020

Preprint

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Control of plant virus disease largely depends on the induced plant defense achieved by the external application of synthetic chemical inducers with the ability to modify defense-signaling pathways. However, most of the molecular mechanisms underlying these inducers remain unknown. Here, we developed a lentinan-loaded hydrogel with the core-shell structure and discovered how it protects plant from different virus infections. The hydrogel was synthesized by adding a chitosan shell on the surface of the sodium alginate-calcium ion-lentinan (LNT) hydrogel (SL-gel) to form CSL-gel. CSL-gel exhibits the capacity of prolonging the stable-release of lentinan and promoting calcium ions release. Application of CSL-gel on the root of plants significantly promotes plant growth and development and induces broad-spectrum resistance against TMV, TuMV, PVX and TRV. Furthermore, we found that the sustained release of calcium ions from the CSL-gel triggers the high expression of cal-modulin-like protein 30 (CML30), and silencing of CML30 enhances the susceptibility of tobacco to TMV. Our findings provide evidence that the novel and synthetic CSL-gel with the sustainable release of LNT and calcium ion strongly inhibits the plant virus infection. This study uncovers a novel mode of action by which CSL-gel with the stable release of calcium ion triggers CML30 expression.

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“…The loading rate (LR) was calculated according to the following Eqn () 38 :

LR (() %) = W_{pesticide} / W_{carrier} \times 100

…”

Section: Methodsmentioning

confidence: 99%

PDA@Ti₃C₂T_x as a novel carrier for pesticide delivery and its application in plant protection: NIR‐responsive controlled release and sustained antipest activity

Wan

Fei

et al. 2021

Pest Management Science

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BACKGROUND Stimuli‐responsive pesticide controlled release system provides a new strategy for the development of high‐efficiency pesticides formulation. RESULTS In this article, we report a novel polydopamine surface modified MXene‐Ti3C2Tx nanocarrier for pesticide delivery and plant protection. Polydopamine modified Ti3C2Tx (PDA@Ti3C2Tx) nanocarrier was prepared by biomimetic self‐polymerization of dopamine on the surface of Ti3C2Tx. A typical pesticide, emamectin benzoate (EB), was loaded on PDA@Ti3C2Tx through physisorption process, with a high pesticide loading rate of 45.37%. PDA@Ti3C2Tx exhibited excellent photothermal conversion effect (η = 34.5%). Under the irradiation of near‐infrared (NIR) laser, EB would sustained release from PDA@Ti3C2Tx nanocarrier to surrounding medium. Compared with free EB, EB@PDA@Ti3C2Tx exhibited prolonged persistence period, which can keep antipest activity at 14 days post spraying. In addition, PDA@Ti3C2Tx nanocarrier and EB@PDA@Ti3C2Tx nanoformulation are of good safety, showing no side effect to the seed germination and seedling growth. CONCLUSION This research developed a novel nanocarrier for water‐insoluble pesticide delivery, realizing NIR‐responsive controlled release and sustained antipest activity.

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Fabrication of a pH-Responsively Controlled-Release Pesticide Using an Attapulgite-Based Hydrogel

Cited by 143 publications

References 52 publications

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

A lentinan-loaded hydrogel with core-shell structure induces broad-spectrum resistance against plant virus by activating the expression of CML30

PDA@Ti₃C₂T_x as a novel carrier for pesticide delivery and its application in plant protection: NIR‐responsive controlled release and sustained antipest activity

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Fabrication of a pH-Responsively Controlled-Release Pesticide Using an Attapulgite-Based Hydrogel

Cited by 143 publications

References 52 publications

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

Tannic acid-based nanopesticides coating with highly improved foliage adhesion to enhance foliar retention

A lentinan-loaded hydrogel with core-shell structure induces broad-spectrum resistance against plant virus by activating the expression of CML30

PDA@Ti3C2Tx as a novel carrier for pesticide delivery and its application in plant protection: NIR‐responsive controlled release and sustained antipest activity

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Product

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About

PDA@Ti₃C₂T_x as a novel carrier for pesticide delivery and its application in plant protection: NIR‐responsive controlled release and sustained antipest activity