Emulsan, a tailorable biopolymer for controlled release
- Autores
- Castro, Guillermo Raúl; Panilaitis, Bruce; Kaplan, David L.
- Año de publicación
- 2008
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Microsphere hydrogels made with emulsan–alginate were used as carrier for the microencapsulation of blue dextran in order to study the effect of emulsan on the alginate bead stability. Blue dextran release studies indicated an increase of microsphere stability in presence of emulsan, as a coating agent. BSA adsorption by emulsan–alginate microspheres is also enhanced 40% compared to alginate alone. XPS studies confirm the presence of BSA adsorbed on emulsan microsphere surfaces. These results are in agreement with the equilibrium adsorption model of Freundlich. Studies of BSA adsorption using non-equilibrium Lagergren second-order and intraparticle models, are suggesting a complex mechanisms of protein adsorption by chemisorption and intraparticle diffusion. Also, enzymatic release of BSA from emulsan microspheres containing azo-BSA under physiological conditions is suggests the possibility of using microspheres as a depot for pre-proteins of medical interest.
Centro de Investigación y Desarrollo en Fermentaciones Industriales - Materia
-
Bioquímica
Emulsan
Bioemulsifier
Controlled release
Agriculture
Fermentation - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/152994
Ver los metadatos del registro completo
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Emulsan, a tailorable biopolymer for controlled releaseCastro, Guillermo RaúlPanilaitis, BruceKaplan, David L.BioquímicaEmulsanBioemulsifierControlled releaseAgricultureFermentationMicrosphere hydrogels made with emulsan–alginate were used as carrier for the microencapsulation of blue dextran in order to study the effect of emulsan on the alginate bead stability. Blue dextran release studies indicated an increase of microsphere stability in presence of emulsan, as a coating agent. BSA adsorption by emulsan–alginate microspheres is also enhanced 40% compared to alginate alone. XPS studies confirm the presence of BSA adsorbed on emulsan microsphere surfaces. These results are in agreement with the equilibrium adsorption model of Freundlich. Studies of BSA adsorption using non-equilibrium Lagergren second-order and intraparticle models, are suggesting a complex mechanisms of protein adsorption by chemisorption and intraparticle diffusion. Also, enzymatic release of BSA from emulsan microspheres containing azo-BSA under physiological conditions is suggests the possibility of using microspheres as a depot for pre-proteins of medical interest.Centro de Investigación y Desarrollo en Fermentaciones Industriales2008info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/152994enginfo:eu-repo/semantics/altIdentifier/issn/0960-8524info:eu-repo/semantics/altIdentifier/issn/1873-2976info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biortech.2007.06.059info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T11:11:34Zoai:sedici.unlp.edu.ar:10915/152994Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 11:11:35.094SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Emulsan, a tailorable biopolymer for controlled release |
title |
Emulsan, a tailorable biopolymer for controlled release |
spellingShingle |
Emulsan, a tailorable biopolymer for controlled release Castro, Guillermo Raúl Bioquímica Emulsan Bioemulsifier Controlled release Agriculture Fermentation |
title_short |
Emulsan, a tailorable biopolymer for controlled release |
title_full |
Emulsan, a tailorable biopolymer for controlled release |
title_fullStr |
Emulsan, a tailorable biopolymer for controlled release |
title_full_unstemmed |
Emulsan, a tailorable biopolymer for controlled release |
title_sort |
Emulsan, a tailorable biopolymer for controlled release |
dc.creator.none.fl_str_mv |
Castro, Guillermo Raúl Panilaitis, Bruce Kaplan, David L. |
author |
Castro, Guillermo Raúl |
author_facet |
Castro, Guillermo Raúl Panilaitis, Bruce Kaplan, David L. |
author_role |
author |
author2 |
Panilaitis, Bruce Kaplan, David L. |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Bioquímica Emulsan Bioemulsifier Controlled release Agriculture Fermentation |
topic |
Bioquímica Emulsan Bioemulsifier Controlled release Agriculture Fermentation |
dc.description.none.fl_txt_mv |
Microsphere hydrogels made with emulsan–alginate were used as carrier for the microencapsulation of blue dextran in order to study the effect of emulsan on the alginate bead stability. Blue dextran release studies indicated an increase of microsphere stability in presence of emulsan, as a coating agent. BSA adsorption by emulsan–alginate microspheres is also enhanced 40% compared to alginate alone. XPS studies confirm the presence of BSA adsorbed on emulsan microsphere surfaces. These results are in agreement with the equilibrium adsorption model of Freundlich. Studies of BSA adsorption using non-equilibrium Lagergren second-order and intraparticle models, are suggesting a complex mechanisms of protein adsorption by chemisorption and intraparticle diffusion. Also, enzymatic release of BSA from emulsan microspheres containing azo-BSA under physiological conditions is suggests the possibility of using microspheres as a depot for pre-proteins of medical interest. Centro de Investigación y Desarrollo en Fermentaciones Industriales |
description |
Microsphere hydrogels made with emulsan–alginate were used as carrier for the microencapsulation of blue dextran in order to study the effect of emulsan on the alginate bead stability. Blue dextran release studies indicated an increase of microsphere stability in presence of emulsan, as a coating agent. BSA adsorption by emulsan–alginate microspheres is also enhanced 40% compared to alginate alone. XPS studies confirm the presence of BSA adsorbed on emulsan microsphere surfaces. These results are in agreement with the equilibrium adsorption model of Freundlich. Studies of BSA adsorption using non-equilibrium Lagergren second-order and intraparticle models, are suggesting a complex mechanisms of protein adsorption by chemisorption and intraparticle diffusion. Also, enzymatic release of BSA from emulsan microspheres containing azo-BSA under physiological conditions is suggests the possibility of using microspheres as a depot for pre-proteins of medical interest. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/152994 |
url |
http://sedici.unlp.edu.ar/handle/10915/152994 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0960-8524 info:eu-repo/semantics/altIdentifier/issn/1873-2976 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.biortech.2007.06.059 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
dc.format.none.fl_str_mv |
application/pdf |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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alira@sedici.unlp.edu.ar |
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