Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process
- Autores
- Fanovich, Maria Alejandra; Ivanovic, J.; Misic, D.; Alvarez, María Victoria; Jaeger, P.; Zizovic, I.; Eggers, Rudolf
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- The present study is aimed to develop a process for production of functionalized scaffolds impregnated with natural compounds extracted from Patagonian Usnea lichen. A setup for an integrated supercritical CO2 extraction of natural compounds with posterior impregnation on solid matrices (polycaprolactone, PCL) is developed and presented here. In order to establish optimized operating conditions, supercritical extraction of Usnea as well as sorption kinetics and resulting material properties have been studied separately first. Usnea extracts isolated by supercritical carbon dioxide at 30 MPa and 40 °C have shown strong antibacterial activity with values of the minimum inhibitory concentration (MIC) ranging from less than 1.25 μg/mL to 320 μg/mL against Listeria innocua and Methicillin-resistant Staphylococcus (MRS) strains. Useful scaffolds of PCL for tissue engineering containing a porous structure with pore diameters between 150 and 340 μm can be obtained when PCL is exposed to carbon dioxide at 35 °C and 15 MPa. The degree of crystallinity of functionalized PCL was shown to be influenced by the incorporated antibacterial agent. The presented results showed that the impregnated PCL samples are promising bactericidal compounds against L. innocua. Screening of antibacterial activity of functionalized PCL against a Methicillin-resistant Staphylococcus aureus (MRSA) strain showed a higher activity when a low bacterial inoculum level (2 × 104 Colony-forming Units/mL [CFU/mL]) was assayed.
Fil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; Argentina
Fil: Ivanovic, J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina
Fil: Misic, D.. University of Belgrade; Serbia
Fil: Alvarez, María Victoria. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; Argentina
Fil: Jaeger, P.. Universitat Hamburg; Alemania
Fil: Zizovic, I.. University of Belgrade; Serbia
Fil: Eggers, Rudolf. Universitat Hamburg; Alemania - Materia
-
ANTIBACTERIAL PROPERTIES
POLYCAPROLACTONE SCAFFOLD
SUPERCRITICAL EXTRACTION IMPREGNATION
USNEA EXTRACT - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/2440
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3498 |
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CONICET Digital (CONICET) |
spelling |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation processFanovich, Maria AlejandraIvanovic, J.Misic, D.Alvarez, María VictoriaJaeger, P.Zizovic, I.Eggers, RudolfANTIBACTERIAL PROPERTIESPOLYCAPROLACTONE SCAFFOLDSUPERCRITICAL EXTRACTION IMPREGNATIONUSNEA EXTRACThttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2https://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The present study is aimed to develop a process for production of functionalized scaffolds impregnated with natural compounds extracted from Patagonian Usnea lichen. A setup for an integrated supercritical CO2 extraction of natural compounds with posterior impregnation on solid matrices (polycaprolactone, PCL) is developed and presented here. In order to establish optimized operating conditions, supercritical extraction of Usnea as well as sorption kinetics and resulting material properties have been studied separately first. Usnea extracts isolated by supercritical carbon dioxide at 30 MPa and 40 °C have shown strong antibacterial activity with values of the minimum inhibitory concentration (MIC) ranging from less than 1.25 μg/mL to 320 μg/mL against Listeria innocua and Methicillin-resistant Staphylococcus (MRS) strains. Useful scaffolds of PCL for tissue engineering containing a porous structure with pore diameters between 150 and 340 μm can be obtained when PCL is exposed to carbon dioxide at 35 °C and 15 MPa. The degree of crystallinity of functionalized PCL was shown to be influenced by the incorporated antibacterial agent. The presented results showed that the impregnated PCL samples are promising bactericidal compounds against L. innocua. Screening of antibacterial activity of functionalized PCL against a Methicillin-resistant Staphylococcus aureus (MRSA) strain showed a higher activity when a low bacterial inoculum level (2 × 104 Colony-forming Units/mL [CFU/mL]) was assayed.Fil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; ArgentinaFil: Ivanovic, J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); ArgentinaFil: Misic, D.. University of Belgrade; SerbiaFil: Alvarez, María Victoria. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; ArgentinaFil: Jaeger, P.. Universitat Hamburg; AlemaniaFil: Zizovic, I.. University of Belgrade; SerbiaFil: Eggers, Rudolf. Universitat Hamburg; AlemaniaElsevier Science2013-03-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2440Fanovich, Maria Alejandra; Ivanovic, J.; Misic, D.; Alvarez, María Victoria; Jaeger, P.; et al.; Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process; Elsevier Science; Journal of Supercritical Fluids; 78; 23-3-2013; 42-530896-8446enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.supflu.2013.03.017info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0896844613001150info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:32Zoai:ri.conicet.gov.ar:11336/2440instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:30:32.463CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
title |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
spellingShingle |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process Fanovich, Maria Alejandra ANTIBACTERIAL PROPERTIES POLYCAPROLACTONE SCAFFOLD SUPERCRITICAL EXTRACTION IMPREGNATION USNEA EXTRACT |
title_short |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
title_full |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
title_fullStr |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
title_full_unstemmed |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
title_sort |
Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process |
dc.creator.none.fl_str_mv |
Fanovich, Maria Alejandra Ivanovic, J. Misic, D. Alvarez, María Victoria Jaeger, P. Zizovic, I. Eggers, Rudolf |
author |
Fanovich, Maria Alejandra |
author_facet |
Fanovich, Maria Alejandra Ivanovic, J. Misic, D. Alvarez, María Victoria Jaeger, P. Zizovic, I. Eggers, Rudolf |
author_role |
author |
author2 |
Ivanovic, J. Misic, D. Alvarez, María Victoria Jaeger, P. Zizovic, I. Eggers, Rudolf |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
ANTIBACTERIAL PROPERTIES POLYCAPROLACTONE SCAFFOLD SUPERCRITICAL EXTRACTION IMPREGNATION USNEA EXTRACT |
topic |
ANTIBACTERIAL PROPERTIES POLYCAPROLACTONE SCAFFOLD SUPERCRITICAL EXTRACTION IMPREGNATION USNEA EXTRACT |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.5 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
The present study is aimed to develop a process for production of functionalized scaffolds impregnated with natural compounds extracted from Patagonian Usnea lichen. A setup for an integrated supercritical CO2 extraction of natural compounds with posterior impregnation on solid matrices (polycaprolactone, PCL) is developed and presented here. In order to establish optimized operating conditions, supercritical extraction of Usnea as well as sorption kinetics and resulting material properties have been studied separately first. Usnea extracts isolated by supercritical carbon dioxide at 30 MPa and 40 °C have shown strong antibacterial activity with values of the minimum inhibitory concentration (MIC) ranging from less than 1.25 μg/mL to 320 μg/mL against Listeria innocua and Methicillin-resistant Staphylococcus (MRS) strains. Useful scaffolds of PCL for tissue engineering containing a porous structure with pore diameters between 150 and 340 μm can be obtained when PCL is exposed to carbon dioxide at 35 °C and 15 MPa. The degree of crystallinity of functionalized PCL was shown to be influenced by the incorporated antibacterial agent. The presented results showed that the impregnated PCL samples are promising bactericidal compounds against L. innocua. Screening of antibacterial activity of functionalized PCL against a Methicillin-resistant Staphylococcus aureus (MRSA) strain showed a higher activity when a low bacterial inoculum level (2 × 104 Colony-forming Units/mL [CFU/mL]) was assayed. Fil: Fanovich, Maria Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; Argentina Fil: Ivanovic, J.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación en Ciencia y Tecnología de Materiales (i); Argentina Fil: Misic, D.. University of Belgrade; Serbia Fil: Alvarez, María Victoria. Universidad Nacional de Mar del Plata. Facultad de Ingenieria; Argentina Fil: Jaeger, P.. Universitat Hamburg; Alemania Fil: Zizovic, I.. University of Belgrade; Serbia Fil: Eggers, Rudolf. Universitat Hamburg; Alemania |
description |
The present study is aimed to develop a process for production of functionalized scaffolds impregnated with natural compounds extracted from Patagonian Usnea lichen. A setup for an integrated supercritical CO2 extraction of natural compounds with posterior impregnation on solid matrices (polycaprolactone, PCL) is developed and presented here. In order to establish optimized operating conditions, supercritical extraction of Usnea as well as sorption kinetics and resulting material properties have been studied separately first. Usnea extracts isolated by supercritical carbon dioxide at 30 MPa and 40 °C have shown strong antibacterial activity with values of the minimum inhibitory concentration (MIC) ranging from less than 1.25 μg/mL to 320 μg/mL against Listeria innocua and Methicillin-resistant Staphylococcus (MRS) strains. Useful scaffolds of PCL for tissue engineering containing a porous structure with pore diameters between 150 and 340 μm can be obtained when PCL is exposed to carbon dioxide at 35 °C and 15 MPa. The degree of crystallinity of functionalized PCL was shown to be influenced by the incorporated antibacterial agent. The presented results showed that the impregnated PCL samples are promising bactericidal compounds against L. innocua. Screening of antibacterial activity of functionalized PCL against a Methicillin-resistant Staphylococcus aureus (MRSA) strain showed a higher activity when a low bacterial inoculum level (2 × 104 Colony-forming Units/mL [CFU/mL]) was assayed. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-23 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 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://hdl.handle.net/11336/2440 Fanovich, Maria Alejandra; Ivanovic, J.; Misic, D.; Alvarez, María Victoria; Jaeger, P.; et al.; Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process; Elsevier Science; Journal of Supercritical Fluids; 78; 23-3-2013; 42-53 0896-8446 |
url |
http://hdl.handle.net/11336/2440 |
identifier_str_mv |
Fanovich, Maria Alejandra; Ivanovic, J.; Misic, D.; Alvarez, María Victoria; Jaeger, P.; et al.; Development of polycaprolactone scaffold with antibacterial activity by an integrated supercritical extraction and impregnation process; Elsevier Science; Journal of Supercritical Fluids; 78; 23-3-2013; 42-53 0896-8446 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.supflu.2013.03.017 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0896844613001150 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614313848864768 |
score |
13.070432 |