Polymeric microparticles for modified release of NPK in agricultural applications
| Autor: | José Messias Gomes, Nathalie Ferreira Silva de Melo, Isabela Cristina de Matos Cunha, Gilmare Antônia da Silva, Leonardo Fernandes Fraceto, Júnior Olair Chagas, Fabiana Aparecida Lobo |
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| Přispěvatelé: | Univ Fed Ouro Preto, Fac Dent, Ctr Dent Res Sao Leopoldo Mandic, Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
General Chemical Engineering
Potassium Polyglycerol chemistry.chemical_element 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences Polyvinyl alcohol lcsh:Chemistry chemistry.chemical_compound Prolonged release Polymeric microparticles Multivariate optimization Fertilizers Chloroform General Chemistry 021001 nanoscience & nanotechnology Nitrogen 0104 chemical sciences Desirability function chemistry Modified release lcsh:QD1-999 engineering Fertilizer 0210 nano-technology Nuclear chemistry |
| Zdroj: | Arabian Journal of Chemistry, Vol 13, Iss 1, Pp 2084-2095 (2020) Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Repositório Institucional da UFOP Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
| ISSN: | 1878-5352 |
| Popis: | Made available in DSpace on 2020-12-10T19:45:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) Minas Chemical Network [Rede Mineira de Quimica (RQ-MG)] Vice-Chancellor's Office of Research and Graduate Studies [Pro-Reitoria de Pesquisa e Pos-Gradua cao (PROPP)] of the Federal University of Ouro Preto 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(E-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. (C) 2018 Production and hosting by Elsevier B.V. on behalf of King Saud University. Univ Fed Ouro Preto, Inst Exact & Biol Sci, Dept Chem, BR-35400000 Ouro Preto, MG, Brazil Fac Dent, Dept Immunol & Mol Biol, BR-13045755 Campinas, SP, Brazil Ctr Dent Res Sao Leopoldo Mandic, BR-13045755 Campinas, SP, Brazil State Univ Sao Paulo Julio de Mesquita Filho, Dept Environm Engn, BR-STATE UN Sorocaba, SP, Brazil State Univ Sao Paulo Julio de Mesquita Filho, Dept Environm Engn, BR-STATE UN Sorocaba, SP, Brazil CNPq: 479273/2013-8 Minas Chemical Network [Rede Mineira de Quimica (RQ-MG)]: FAPEMIG CEX RED-00010-14 |
| Databáze: | OpenAIRE |
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