Fabrication and Characterization of a Novel Herbicide Delivery System with Magnetic Collectability and Its Phytotoxic Effect on Photosystem II of Aquatic Macrophyte
The use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed...
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| Veröffentlicht in: | Journal of agricultural and food chemistry 2020-10, Vol.68 (40), p.11105-11113 |
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| creator | Forini, Mariana M. L Antunes, Débora R Cavalcante, Luiz A. F Pontes, Montcharles S Biscalchim, Érica R Sanches, Alex O Santiago, Etenaldo F Fraceto, Leonardo F Grillo, Renato |
| description | The use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed a biodegradable release system for the herbicide atrazine with magnetic properties. Herein, we investigated the (a) physicochemical properties of the atrazine-loaded magnetic poly(ε-caprolactone) microparticles (MPs:ATZ), (b) in vitro release kinetic profile of the herbicide, and (c) phytotoxicity toward photosynthesis in the aquatic fern Azolla caroliniana. The encapsulation efficiency of the herbicide in the MPs:ATZ was ca. 69%, yielding spherical microparticles with a diameter of ca. 100 μm, a sustained-release profile, and easily manipulated with an external magnetic field. Also, phytotoxicity issues showed that the MPs:ATZ maintained their herbicidal activity via inhibition of PSII, showing lower toxicity compared with the nonencapsulated ATZ at 0.01 and 0.02 μmol·L–1. Therefore, this technology may conveniently promote a novel magnetic controlled release of the herbicide ATZ (with the potential to be collected from a watercourse) and act as a nutrient boost to the nontarget plant, with good herbicidal activity and reduced risk to the environment. |
| doi_str_mv | 10.1021/acs.jafc.0c03645 |
| format | Article |
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L ; Antunes, Débora R ; Cavalcante, Luiz A. F ; Pontes, Montcharles S ; Biscalchim, Érica R ; Sanches, Alex O ; Santiago, Etenaldo F ; Fraceto, Leonardo F ; Grillo, Renato</creator><creatorcontrib>Forini, Mariana M. L ; Antunes, Débora R ; Cavalcante, Luiz A. F ; Pontes, Montcharles S ; Biscalchim, Érica R ; Sanches, Alex O ; Santiago, Etenaldo F ; Fraceto, Leonardo F ; Grillo, Renato</creatorcontrib><description>The use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed a biodegradable release system for the herbicide atrazine with magnetic properties. Herein, we investigated the (a) physicochemical properties of the atrazine-loaded magnetic poly(ε-caprolactone) microparticles (MPs:ATZ), (b) in vitro release kinetic profile of the herbicide, and (c) phytotoxicity toward photosynthesis in the aquatic fern Azolla caroliniana. The encapsulation efficiency of the herbicide in the MPs:ATZ was ca. 69%, yielding spherical microparticles with a diameter of ca. 100 μm, a sustained-release profile, and easily manipulated with an external magnetic field. Also, phytotoxicity issues showed that the MPs:ATZ maintained their herbicidal activity via inhibition of PSII, showing lower toxicity compared with the nonencapsulated ATZ at 0.01 and 0.02 μmol·L–1. 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L</creatorcontrib><creatorcontrib>Antunes, Débora R</creatorcontrib><creatorcontrib>Cavalcante, Luiz A. F</creatorcontrib><creatorcontrib>Pontes, Montcharles S</creatorcontrib><creatorcontrib>Biscalchim, Érica R</creatorcontrib><creatorcontrib>Sanches, Alex O</creatorcontrib><creatorcontrib>Santiago, Etenaldo F</creatorcontrib><creatorcontrib>Fraceto, Leonardo F</creatorcontrib><creatorcontrib>Grillo, Renato</creatorcontrib><title>Fabrication and Characterization of a Novel Herbicide Delivery System with Magnetic Collectability and Its Phytotoxic Effect on Photosystem II of Aquatic Macrophyte</title><title>Journal of agricultural and food chemistry</title><addtitle>J AGR FOOD CHEM</addtitle><addtitle>J. Agric. Food Chem</addtitle><description>The use of nano- and microparticles as a release system for agrochemicals has been increasing in agricultural sector. 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L ; Antunes, Débora R ; Cavalcante, Luiz A. 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L</creatorcontrib><creatorcontrib>Antunes, Débora R</creatorcontrib><creatorcontrib>Cavalcante, Luiz A. 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However, the production of eco-friendly and smart carriers that can be easily handled in the environment is still a challenge for this technology. In this context, we have developed a biodegradable release system for the herbicide atrazine with magnetic properties. Herein, we investigated the (a) physicochemical properties of the atrazine-loaded magnetic poly(ε-caprolactone) microparticles (MPs:ATZ), (b) in vitro release kinetic profile of the herbicide, and (c) phytotoxicity toward photosynthesis in the aquatic fern Azolla caroliniana. The encapsulation efficiency of the herbicide in the MPs:ATZ was ca. 69%, yielding spherical microparticles with a diameter of ca. 100 μm, a sustained-release profile, and easily manipulated with an external magnetic field. Also, phytotoxicity issues showed that the MPs:ATZ maintained their herbicidal activity via inhibition of PSII, showing lower toxicity compared with the nonencapsulated ATZ at 0.01 and 0.02 μmol·L–1. 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| subjects | Agricultural and Environmental Chemistry Agriculture Agriculture, Multidisciplinary Atrazine - chemistry Chemistry Chemistry, Applied Drug Delivery Systems - instrumentation Drug Delivery Systems - methods Drug Liberation Ferns - drug effects Ferns - metabolism Food Science & Technology Herbicides - chemistry Herbicides - pharmacology Life Sciences & Biomedicine Magnetics - instrumentation Magnetics - methods Nanoparticles - chemistry Photosynthesis - drug effects Photosystem II Protein Complex - antagonists & inhibitors Photosystem II Protein Complex - metabolism Physical Sciences Polyesters - chemistry Polyesters - pharmacology Science & Technology |
| title | Fabrication and Characterization of a Novel Herbicide Delivery System with Magnetic Collectability and Its Phytotoxic Effect on Photosystem II of Aquatic Macrophyte |
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