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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
07/06/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, G. G. de; CHEE, B. S.; MORITZ, V. F.; CORTESE, Y. J.; MAGALHAES, W. L. E.; DEVINE, D. M.; NUGENT, M. J. D. |
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Afiliação: |
Gabriel Goetten de Lima, Materials Research Institute, Athlone Institute of Technology; Bor Shin Chee, Materials Research Institute, Athlone Institute of Technology; Vicente Froés Moritz, Materials Research Institute, Athlone Institute of Technology; Yvonne J Cortese, Materials Research Institute, Athlone Institute of Technology; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; Declan M Devine, Materials Research Institute, Athlone Institute of Technology; Michael J D Nugent, Materials Research Institute, Athlone Institute of Technology. |
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Título: |
The production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Biomedical Physics & Engineering Express, v. 5, n. 4, 045017, Jul. 2019. 13 p. |
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DOI: |
10.1088/2057-1976/ab2547 |
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Idioma: |
Inglês |
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Conteúdo: |
Although freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis. |
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Palavras-Chave: |
Álcool polivinílico; Immediate releas; Liberação de fármaco por via oral; Oral drug delivery; PH-sensitivity; Produto madeireiro. |
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Thesaurus Nal: |
Polyvinyl alcohol. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02387naa a2200289 a 4500
001 2109732
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1088/2057-1976/ab2547$2DOI
100 1 $aLIMA, G. G. de
245 $aThe production of a novel poly(vinyl alcohol) hydrogel cryogenic spheres for immediate release using a droplet system.$h[electronic resource]
260 $c2019
520 $aAlthough freeze-thaw mechanism for producing crosslinked hydrogels is relatively easy and simple, it lacks sufficient integrity and support leading to modifications on its three-dimensional polymeric network arrangement during water removal?drying. Therefore, a strengthening method for obtaining cryogenic spheres of polyvinyl alcohol hydrogels is purposed by dispensing it as liquid droplets into a low temperature solution followed by a modification on its freeze-thaw cycles to confer a good geometry without aggregation. Various materials were incorporated into this hydrogel structure, including poly(acrylic acid) to impart pH sensitivity; hydroxyapatite to improve biocompatibility; and ciprofloxacin as an antimicrobial agent relevant for the treatment of osteomyelitis. The overall network presented a porous structure with a fibrous-like pattern which varied in size and volume, with presence of Ca and P when hydroxyapatite is incorporated. These materials varied the crystalline melting point of the poly(vinyl alcohol) and a linear pHsensitivity function was obtained by the addition of the materials. These hydrogels were found to release ciprofloxacin within 60 min and were able to dissolve at the same time intervals. Therefore, the hydrogel synthesised in this work can be used as an immediate release drug delivery mechanism for the in situ delivery of active pharmaceutical such as ciprofloxacin for a treatment of osteomyelitis.
650 $aPolyvinyl alcohol
653 $aÁlcool polivinílico
653 $aImmediate releas
653 $aLiberação de fármaco por via oral
653 $aOral drug delivery
653 $aPH-sensitivity
653 $aProduto madeireiro
700 1 $aCHEE, B. S.
700 1 $aMORITZ, V. F.
700 1 $aCORTESE, Y. J.
700 1 $aMAGALHAES, W. L. E.
700 1 $aDEVINE, D. M.
700 1 $aNUGENT, M. J. D.
773 $tBiomedical Physics & Engineering Express$gv. 5, n. 4, 045017, Jul. 2019. 13 p.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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Origem |
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Cutter |
Registro |
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URL |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
10/03/2010 |
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Data da última atualização: |
12/09/2012 |
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Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
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Autoria: |
BALSALOBRE, T. W. A.; EVANGELISTA, D. E.; CRUZ, L. P. da; FERNANDES, L. G. V.; BARRETO, F. Z.; COSTA, J. G. C. da; CARNEIRO, M. S. |
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Afiliação: |
THIAGO WILLIAN ALMEIDA BALSALOBRE, UFSão Carlos; DANILO ELTON EVANGELISTA, UFSão Carlos; LARISSA PRADO DA CRUZ, UFSão Carlos; LUIS GUILHERME VIRGÍLIO FERNANDES, UFSão Carlos; FERNANDA ZATTI BARRETO, UFSão Carlos; JOAQUIM GERALDO CÁPRIO DA COSTA, CNPAF; MONALISA SAMPAIO CARNEIRO, UFSão Carlos. |
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Título: |
Mapeamento genético da resistência a murcha do fusario em feijoeiro comum. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
Este trabalho objetivou identificar marcadores microssatélites ligados a genes de resistência a Fusarium oxysporum f. sp. phaseoli em feijoeiro comum. |
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Thesagro: |
Feijão; Marcador molecular; Melhoramento genético vegetal; Phaseolus vulgaris. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/66087/1/2628.pdf
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Marc: |
LEADER 00961nam a2200241 a 4500
001 1660535
005 2012-09-12
008 2009 bl uuuu u00u1 u #d
100 1 $aBALSALOBRE, T. W. A.
245 $aMapeamento genético da resistência a murcha do fusario em feijoeiro comum.
260 $aIn: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper$c2009
300 $c1 CD-ROM.
520 $aEste trabalho objetivou identificar marcadores microssatélites ligados a genes de resistência a Fusarium oxysporum f. sp. phaseoli em feijoeiro comum.
650 $aFeijão
650 $aMarcador molecular
650 $aMelhoramento genético vegetal
650 $aPhaseolus vulgaris
700 1 $aEVANGELISTA, D. E.
700 1 $aCRUZ, L. P. da
700 1 $aFERNANDES, L. G. V.
700 1 $aBARRETO, F. Z.
700 1 $aCOSTA, J. G. C. da
700 1 $aCARNEIRO, M. S.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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