Polymeric microparticles for modified release of NPK in agricultural applications

The aim of this work was to synthesize polymeric microparticles as carriers for nitrogen, phosphorus, and potassium (NPK fertilizer) for agricultural applications, using polyglycerol (PG) to improve the synthesis procedure. Multivariate experimental designs were employed to obtain a satisfactory syn...

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Main Authors: Júnior Olair Chagas, José Messias Gomes, Isabela Cristina de Matos Cunha, Nathalie Ferreira Silva de Melo, Leonardo Fernandes Fraceto, Gilmare Antônia da Silva, Fabiana Aparecida Lobo
Format: Article
Language:English
Published: Elsevier 2020-01-01
Series:Arabian Journal of Chemistry
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535218300650
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author Júnior Olair Chagas
José Messias Gomes
Isabela Cristina de Matos Cunha
Nathalie Ferreira Silva de Melo
Leonardo Fernandes Fraceto
Gilmare Antônia da Silva
Fabiana Aparecida Lobo
author_facet Júnior Olair Chagas
José Messias Gomes
Isabela Cristina de Matos Cunha
Nathalie Ferreira Silva de Melo
Leonardo Fernandes Fraceto
Gilmare Antônia da Silva
Fabiana Aparecida Lobo
author_sort Júnior Olair Chagas
collection DOAJ
description The aim of this work was to synthesize polymeric microparticles as carriers for nitrogen, phosphorus, and potassium (NPK fertilizer) for agricultural applications, using polyglycerol (PG) to improve the synthesis procedure. Multivariate experimental designs were employed to obtain a satisfactory synthesis. The desirability function identified the best conditions for preparation of the microparticles as being 100.00 mg of poly(ε-caprolactone) (PCL), 825.00 mg of PG, 9.25 mL of chloroform, and 0.9% w/v of polyvinyl alcohol (PVA). This resulted in average encapsulation rates of 94.23% for N, 99.80% for P, and 65.00% for K. The profile of release from the microparticles was according to diffusion following Fick’s Law. These observations confirmed the capacity of the proposed microparticles to sustain a continuous and prolonged release of NPK for the purpose of plant fertilization. Keywords: Polymeric microparticles, Modified release, Fertilizers, Polyglycerol, Multivariate optimization
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spelling doaj.art-746c4fdac82e4c30b7ec459bc3c0e8e62022-12-21T22:38:56ZengElsevierArabian Journal of Chemistry1878-53522020-01-0113120842095Polymeric microparticles for modified release of NPK in agricultural applicationsJúnior Olair Chagas0José Messias Gomes1Isabela Cristina de Matos Cunha2Nathalie Ferreira Silva de Melo3Leonardo Fernandes Fraceto4Gilmare Antônia da Silva5Fabiana Aparecida Lobo6Department of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, MG 35400-000, BrazilDepartment of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, MG 35400-000, BrazilDepartment of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, MG 35400-000, BrazilDepartment of Immunology and Molecular Biology, Faculty of Dentistry and Center for Dental Research São Leopoldo Mandic, Campinas, SP 13045-755, BrazilDepartment of Environmental Engineering, State University of São Paulo Júlio de Mesquita Filho, Sorocaba, SP 18087-180, BrazilDepartment of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, MG 35400-000, BrazilDepartment of Chemistry, Institute of Exact and Biological Sciences, Federal University of Ouro Preto, Ouro Preto, MG 35400-000, Brazil; Corresponding author.The aim of this work was to synthesize polymeric microparticles as carriers for nitrogen, phosphorus, and potassium (NPK fertilizer) for agricultural applications, using polyglycerol (PG) to improve the synthesis procedure. Multivariate experimental designs were employed to obtain a satisfactory synthesis. The desirability function identified the best conditions for preparation of the microparticles as being 100.00 mg of poly(ε-caprolactone) (PCL), 825.00 mg of PG, 9.25 mL of chloroform, and 0.9% w/v of polyvinyl alcohol (PVA). This resulted in average encapsulation rates of 94.23% for N, 99.80% for P, and 65.00% for K. The profile of release from the microparticles was according to diffusion following Fick’s Law. These observations confirmed the capacity of the proposed microparticles to sustain a continuous and prolonged release of NPK for the purpose of plant fertilization. Keywords: Polymeric microparticles, Modified release, Fertilizers, Polyglycerol, Multivariate optimizationhttp://www.sciencedirect.com/science/article/pii/S1878535218300650
spellingShingle Júnior Olair Chagas
José Messias Gomes
Isabela Cristina de Matos Cunha
Nathalie Ferreira Silva de Melo
Leonardo Fernandes Fraceto
Gilmare Antônia da Silva
Fabiana Aparecida Lobo
Polymeric microparticles for modified release of NPK in agricultural applications
Arabian Journal of Chemistry
title Polymeric microparticles for modified release of NPK in agricultural applications
title_full Polymeric microparticles for modified release of NPK in agricultural applications
title_fullStr Polymeric microparticles for modified release of NPK in agricultural applications
title_full_unstemmed Polymeric microparticles for modified release of NPK in agricultural applications
title_short Polymeric microparticles for modified release of NPK in agricultural applications
title_sort polymeric microparticles for modified release of npk in agricultural applications
url http://www.sciencedirect.com/science/article/pii/S1878535218300650
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