Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer
In our research group, controlled release systems for the sulfentrazone herbicide has been accomplished by encapsulating this bioactive compound into calcium alginate (Ca-ALG) biodegradable polymer fashion and the release mechanisms were verified by using Korsmeyer-Peppas model (KP). However, the KP...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2019-11-01
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| Series: | Materials Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500224&tlng=en |
| _version_ | 1818973714551668736 |
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| author | Gabriel Gouvêa Slade Sidney Macias Dourado Jr Ronaldo Junio de Oliveira Jéferson Aparecido Moreto |
| author_facet | Gabriel Gouvêa Slade Sidney Macias Dourado Jr Ronaldo Junio de Oliveira Jéferson Aparecido Moreto |
| author_sort | Gabriel Gouvêa Slade |
| collection | DOAJ |
| description | In our research group, controlled release systems for the sulfentrazone herbicide has been accomplished by encapsulating this bioactive compound into calcium alginate (Ca-ALG) biodegradable polymer fashion and the release mechanisms were verified by using Korsmeyer-Peppas model (KP). However, the KP model does not allow to evaluate all the phenomena involved in the (Mt/M∞ versus t) curves. Thus, the aim of this work is the development of a new mathematical model to interpret the distinct regions of the controlled release assays of the Sulfentrazone herbicide encapsulated in Ca-ALG microparticles and that can be used for other systems with a similar release profile. The proposed model is based on the herbicide diffusion, dissolution and polymer surface erosion. The results show that the proposed model is closest to the experimental curve when compared to the KP. The new mathematical model allows not just to describe the behavior of the system in terms of Fick’s law, but to know what type of mechanism act in the herbicide release process. |
| first_indexed | 2024-12-20T15:28:33Z |
| format | Article |
| id | doaj.art-df4004a9b11e49b7a9e57e1f2d83128a |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-12-20T15:28:33Z |
| publishDate | 2019-11-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-df4004a9b11e49b7a9e57e1f2d83128a2022-12-21T19:35:44ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392019-11-0122510.1590/1980-5373-mr-2019-0306Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable PolymerGabriel Gouvêa Sladehttps://orcid.org/0000-0001-7021-4432Sidney Macias Dourado Jrhttps://orcid.org/0000-0002-9722-8823Ronaldo Junio de Oliveirahttps://orcid.org/0000-0003-4860-309XJéferson Aparecido Moretohttps://orcid.org/0000-0001-9837-3216In our research group, controlled release systems for the sulfentrazone herbicide has been accomplished by encapsulating this bioactive compound into calcium alginate (Ca-ALG) biodegradable polymer fashion and the release mechanisms were verified by using Korsmeyer-Peppas model (KP). However, the KP model does not allow to evaluate all the phenomena involved in the (Mt/M∞ versus t) curves. Thus, the aim of this work is the development of a new mathematical model to interpret the distinct regions of the controlled release assays of the Sulfentrazone herbicide encapsulated in Ca-ALG microparticles and that can be used for other systems with a similar release profile. The proposed model is based on the herbicide diffusion, dissolution and polymer surface erosion. The results show that the proposed model is closest to the experimental curve when compared to the KP. The new mathematical model allows not just to describe the behavior of the system in terms of Fick’s law, but to know what type of mechanism act in the herbicide release process.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500224&tlng=enControlled-release formulationsweed controlmicroparticulate systemleachingSoil |
| spellingShingle | Gabriel Gouvêa Slade Sidney Macias Dourado Jr Ronaldo Junio de Oliveira Jéferson Aparecido Moreto Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer Materials Research Controlled-release formulations weed control microparticulate system leaching Soil |
| title | Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer |
| title_full | Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer |
| title_fullStr | Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer |
| title_full_unstemmed | Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer |
| title_short | Developing a Mathematical Model for the Controlled Release Over Time of Sulfentrazone Herbicide from Biodegradable Polymer |
| title_sort | developing a mathematical model for the controlled release over time of sulfentrazone herbicide from biodegradable polymer |
| topic | Controlled-release formulations weed control microparticulate system leaching Soil |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000500224&tlng=en |
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