A comprehensive review on regulatory invention of nano pesticides in Agricultural nano formulation and food system

Raj, Shani; Anooj, ES; Rajendran, Karthikeyan; Vallinayagam, Sugumari

doi:10.1016/j.molstruc.2021.130517

Cited by 43 publications

(17 citation statements)

References 71 publications

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“…The same phenomenon can occur with active substances in nanomaterial form that do not include a carrier. Flocculation and eventually coalescence of NPs can cause a lack of effectiveness of the active substances, increase bioaccumulation, or incur general toxicity events [ 90 ].…”

Section: Stability Strategies For Polymer-based Nanopesticidesmentioning

confidence: 99%

Stability Phenomena Associated with the Development of Polymer-Based Nanopesticides

Prado-Audelo

Bernal-Chávez

Gutiérrez-Ruíz

et al. 2022

Oxidative Medicine and Cellular Longevity

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Pesticides have been used in agricultural activity for decades because they represent the first defense against pathogens, harmful insects, and parasitic weeds. Conventional pesticides are commonly employed at high dosages to prevent their loss and degradation, guaranteeing effectiveness; however, this results in a large waste of resources and significant environmental pollution. In this regard, the search for biocompatible, biodegradable, and responsive materials has received greater attention in the last years to achieve the obtention of an efficient and green pesticide formulation. Nanotechnology is a useful tool to design and develop “nanopesticides” that limit pest degradation and ensure a controlled release using a lower concentration than the conventional methods. Besides different types of nanoparticles, polymeric nanocarriers represent the most promising group of nanomaterials to improve the agrochemicals’ sustainability due to polymers’ intrinsic properties. Polymeric nanoparticles are biocompatible, biodegradable, and suitable for chemical surface modification, making them attractive for pesticide delivery. This review summarizes the current use of synthetic and natural polymer-based nanopesticides, discussing their characteristics and their most common design shapes. Furthermore, we approached the instability phenomena in polymer-based nanopesticides and strategies to avoid it. Finally, we discussed the environmental risks and future challenges of polymeric nanopesticides to present a comprehensive analysis of this type of nanosystem.

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Section: Stability Strategies For Polymer-based Nanopesticidesmentioning

confidence: 99%

Stability Phenomena Associated with the Development of Polymer-Based Nanopesticides

Prado-Audelo

Bernal-Chávez

Gutiérrez-Ruíz

et al. 2022

Oxidative Medicine and Cellular Longevity

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“…Various applications of layered hydroxides in agriculture are summarized in Figure 3; smart fertilizers, nanosensors, pesticides remediations, precision farming, nanopesticides, etc. LHs and LDHs can be used in various agriculture sectors either as their original synthetic compounds or their derivatives; after modification, intercalation, etc., [5,6,8,12,40]. One of the important applications of LHs and LDHs is the formation of a new generation of pesticides.…”

Section: Application Of Layered Hydroxides In Agriculturementioning

confidence: 99%

“…Among the notable manufacturers are Neufarm GmbH, Plant Vitality Ltd., Kanak Biotech, FRAmelco, Aqua-Yield Hub, Organic Fertilizing, Reed Mariculture Inc, Prodotti Arca S.r.l, Kimitec Group, Richfield Fertilisers Pvt, Blue Planet Environmental, Danaflex Nano, Bioteksa, AgriLife, NanoL and Baltic, Vive Crop Protection, DVS BioLife Ltd., Samarita, and Litho Plant [ 11 ]. Examples of nanofertilizer manufacturers are given elsewhere [ 8 ]. A list of commercially available nanoproducts and their economic viability can be found elsewhere [ 12 ].…”

Section: Commercially Available Nanoproducts For Agriculture Applicationsmentioning

confidence: 99%

“…For crop protection and management, nanomaterials can be used as efficient delivery agents for various pesticides; insecticides, herbicides, fungicides, defoliant, biocides, etc., and can help us move towards economically viable and ecofriendly agrochemicals [ 8 ]. With their controlled release and targeted delivery, this new generation of pesticides can improve the bioavailability of the active ingredients and therefore increase their efficacy compared with their counterparts [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

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A Review on Nanopesticides for Plant Protection Synthesized Using the Supramolecular Chemistry of Layered Hydroxide Hosts

Zobir

Ali

Adzmi

et al. 2021

Biology

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The rapid growth in the human population has triggered increased demand for food supply, and in turn has prompted a higher amount of agrochemical usage to meet the gaps between food production and consumption. The problem with conventional agro-nanochemicals is the reduced effectiveness of the active ingredient in reaching the target, along with leaching, evaporation, etc., which ultimately affect the environment and life, including humans. Fortunately, nanotechnology platforms offer a new life for conventional pesticides, which improves bioavailability through different kinetics, mechanisms and pathways on their target organisms, thus enabling them to suitably bypass biological and other unwanted resistances and therefore increase their efficacy. This review is intended to serve the scientific community for research, development and innovation (RDI) purposes, by providing an overview on the current status of the host–guest supramolecular chemistry of nanopesticides, focusing on only the two-dimensional (2D), brucite-like inorganic layered hydroxides, layered hydroxide salts and layered double hydroxides as the functional nanocarriers or as the hosts in smart nanodelivery systems of pesticides for plant protection. Zinc layered hydroxides and zinc/aluminum-layered double hydroxides were found to be the most popular choices of hosts, presumably due to their relative ease to prepare and cheap cost. Other hosts including Mg/Al-, Co/Cr-, Mg/Fe-, Mg/Al/Fe-, Zn/Cr- and Zn/Cu-LDHs were also used. This review also covers various pesticides which were used as the guest active agents using supramolecular host–guest chemistry to combat various pests for plant protection. This looks towards a new generation of agrochemicals, “agro-nanochemicals”, which are more effective, and friendly to life, humans and the environment.

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“…Global concern about the risks of pesticides (such as metribuzin) to humans and other nontarget organisms has encouraged research into the development of polymeric nanocarriers for pesticides, which could improve environment protection. − These nanocarrier systems are promising, as they demonstrate biodegradability, low toxicity, lower environmental impacts, and increased efficiency against target organisms compared to their conventional analogues. − In addition, nanoencapsulation modifies the fate of pesticides once released into the environment (such as mobility, sorption, and degradation) so that controlled changes in formulation properties are the key to achieving better targeting and reducing losses of active ingredients into the environment …”

Section: Introductionmentioning

confidence: 99%

Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms

et al. 2022

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Nanoparticles based on biodegradable polymers have been shown to be excellent herbicide carriers, improving weed control and protecting the active ingredient in the crop fields. Metribuzin is often found in natural waters, which raises environmental concerns. Nanoencapsulation of this herbicide could be an alternative to reduce its losses to the environment and improve gains in its efficiency. However, there is a paucity of information about the behavior of nanoformulations of herbicides in environmental matrices. In this study, the stability of nanoencapsulated metribuzin in polymeric nanoparticles (nanoMTZ) was verified over time, as well as its dissipation in different soils, followed by the effects on soil enzymatic activity. The physiological parameters and control effects of nanoMTZ on Ipomoea grandifolia plants were investigated. No differences were verified in the half-life of nanoencapsulated metribuzin compared to a commercial formulation of the herbicide. Moreover, no suppressive effects on soil enzymatic activities were observed. The retention of nanoMTZ in the tested soils was lower compared to its commercial analogue. However, the mobility of nanoencapsulated metribuzin was not greatly increased, reflecting a low risk of groundwater contamination. Weed control was effective even at the lowest dose of nanoMTZ (48 g a.i. ha–1), which was consistent with the higher efficiency of nanoMTZ compared to the conventional herbicide in inhibiting PSII activity and decreasing pigment levels. Overall, we verified that nanoMTZ presented a low environmental risk, with increased weed control.

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A comprehensive review on regulatory invention of nano pesticides in Agricultural nano formulation and food system

Cited by 43 publications

References 71 publications

Stability Phenomena Associated with the Development of Polymer-Based Nanopesticides

Stability Phenomena Associated with the Development of Polymer-Based Nanopesticides

A Review on Nanopesticides for Plant Protection Synthesized Using the Supramolecular Chemistry of Layered Hydroxide Hosts

Development of a Preemergent Nanoherbicide: From Efficiency Evaluation to the Assessment of Environmental Fate and Risks to Soil Microorganisms

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