Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices
- Autores
- Hassan, Natalia; Verdinelli, Valeria; Ruso, Juan M.; Messina, Paula Verónica
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- An enhanced knowledge of the interaction of proteins with the surfaces of implantable materials, particularly regarding fibrinogen (Fb), is fundamental for understanding cellular events and the overall host response. Thinking of future use of Si-nanofibers as three-dimensional (3D) scaffolds for construction of implantable artificial devices, the correlation among the material surface characteristics and the amount, structure and distribution of adsorbed Fb molecules are analyzed. The Fb adsorption process occurs in a stepwise fashion with an initial rapid adsorption, an intermediate reorganization and finally a second slower adsorption regime over a longer period of time. There is a partial desorption of the protein after the first adsorption process, which demonstrates that this step is reversible until 2 × 104 s. Nevertheless the whole process is irreversible, with a high distortion of the original material morphology. The limiting value for the adsorbed Fb surface concentration is about 270 ± 20 μg dm-2; more than three times the adsorption capacity of non fibrillar, 2D or 3D, scaffolds. The fibrous structure and the similitude in size between the substrate (d = 30-50 nm) and the Fb molecules (47-50 nm) are proposed to be the key to the enhanced adsorption process and the acquired final topography of the material.
Fil: Hassan, Natalia. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Verdinelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Ruso, Juan M.. Universidad de Santiago de Compostela. Facultad de Física; España
Fil: Messina, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina - Materia
-
Fibrinogen
Adsorption
Sio2 - 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:11336/63306
Ver los metadatos del registro completo
id |
CONICETDig_0080a890617ff653fe82e066995354c8 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/63306 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devicesHassan, NataliaVerdinelli, ValeriaRuso, Juan M.Messina, Paula VerónicaFibrinogenAdsorptionSio2https://purl.org/becyt/ford/2.10https://purl.org/becyt/ford/2An enhanced knowledge of the interaction of proteins with the surfaces of implantable materials, particularly regarding fibrinogen (Fb), is fundamental for understanding cellular events and the overall host response. Thinking of future use of Si-nanofibers as three-dimensional (3D) scaffolds for construction of implantable artificial devices, the correlation among the material surface characteristics and the amount, structure and distribution of adsorbed Fb molecules are analyzed. The Fb adsorption process occurs in a stepwise fashion with an initial rapid adsorption, an intermediate reorganization and finally a second slower adsorption regime over a longer period of time. There is a partial desorption of the protein after the first adsorption process, which demonstrates that this step is reversible until 2 × 104 s. Nevertheless the whole process is irreversible, with a high distortion of the original material morphology. The limiting value for the adsorbed Fb surface concentration is about 270 ± 20 μg dm-2; more than three times the adsorption capacity of non fibrillar, 2D or 3D, scaffolds. The fibrous structure and the similitude in size between the substrate (d = 30-50 nm) and the Fb molecules (47-50 nm) are proposed to be the key to the enhanced adsorption process and the acquired final topography of the material.Fil: Hassan, Natalia. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Verdinelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Ruso, Juan M.. Universidad de Santiago de Compostela. Facultad de Física; EspañaFil: Messina, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaRoyal Society of Chemistry2012-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63306Hassan, Natalia; Verdinelli, Valeria; Ruso, Juan M.; Messina, Paula Verónica; Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices; Royal Society of Chemistry; Soft Matter; 8; 24; 6-2012; 6582-65921744-683XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2012/sm/c2sm25489ainfo:eu-repo/semantics/altIdentifier/doi/10.1039/c2sm25489ainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:49:44Zoai:ri.conicet.gov.ar:11336/63306instacron: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 09:49:45.172CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
title |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
spellingShingle |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices Hassan, Natalia Fibrinogen Adsorption Sio2 |
title_short |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
title_full |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
title_fullStr |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
title_full_unstemmed |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
title_sort |
Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices |
dc.creator.none.fl_str_mv |
Hassan, Natalia Verdinelli, Valeria Ruso, Juan M. Messina, Paula Verónica |
author |
Hassan, Natalia |
author_facet |
Hassan, Natalia Verdinelli, Valeria Ruso, Juan M. Messina, Paula Verónica |
author_role |
author |
author2 |
Verdinelli, Valeria Ruso, Juan M. Messina, Paula Verónica |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Fibrinogen Adsorption Sio2 |
topic |
Fibrinogen Adsorption Sio2 |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.10 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
An enhanced knowledge of the interaction of proteins with the surfaces of implantable materials, particularly regarding fibrinogen (Fb), is fundamental for understanding cellular events and the overall host response. Thinking of future use of Si-nanofibers as three-dimensional (3D) scaffolds for construction of implantable artificial devices, the correlation among the material surface characteristics and the amount, structure and distribution of adsorbed Fb molecules are analyzed. The Fb adsorption process occurs in a stepwise fashion with an initial rapid adsorption, an intermediate reorganization and finally a second slower adsorption regime over a longer period of time. There is a partial desorption of the protein after the first adsorption process, which demonstrates that this step is reversible until 2 × 104 s. Nevertheless the whole process is irreversible, with a high distortion of the original material morphology. The limiting value for the adsorbed Fb surface concentration is about 270 ± 20 μg dm-2; more than three times the adsorption capacity of non fibrillar, 2D or 3D, scaffolds. The fibrous structure and the similitude in size between the substrate (d = 30-50 nm) and the Fb molecules (47-50 nm) are proposed to be the key to the enhanced adsorption process and the acquired final topography of the material. Fil: Hassan, Natalia. Universidad de Santiago de Compostela. Facultad de Física; España Fil: Verdinelli, Valeria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Ruso, Juan M.. Universidad de Santiago de Compostela. Facultad de Física; España Fil: Messina, Paula Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina |
description |
An enhanced knowledge of the interaction of proteins with the surfaces of implantable materials, particularly regarding fibrinogen (Fb), is fundamental for understanding cellular events and the overall host response. Thinking of future use of Si-nanofibers as three-dimensional (3D) scaffolds for construction of implantable artificial devices, the correlation among the material surface characteristics and the amount, structure and distribution of adsorbed Fb molecules are analyzed. The Fb adsorption process occurs in a stepwise fashion with an initial rapid adsorption, an intermediate reorganization and finally a second slower adsorption regime over a longer period of time. There is a partial desorption of the protein after the first adsorption process, which demonstrates that this step is reversible until 2 × 104 s. Nevertheless the whole process is irreversible, with a high distortion of the original material morphology. The limiting value for the adsorbed Fb surface concentration is about 270 ± 20 μg dm-2; more than three times the adsorption capacity of non fibrillar, 2D or 3D, scaffolds. The fibrous structure and the similitude in size between the substrate (d = 30-50 nm) and the Fb molecules (47-50 nm) are proposed to be the key to the enhanced adsorption process and the acquired final topography of the material. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06 |
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/11336/63306 Hassan, Natalia; Verdinelli, Valeria; Ruso, Juan M.; Messina, Paula Verónica; Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices; Royal Society of Chemistry; Soft Matter; 8; 24; 6-2012; 6582-6592 1744-683X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/63306 |
identifier_str_mv |
Hassan, Natalia; Verdinelli, Valeria; Ruso, Juan M.; Messina, Paula Verónica; Assessing structure and dynamics of fibrinogen films on silicon nanofibers: Towards hemocompatibility devices; Royal Society of Chemistry; Soft Matter; 8; 24; 6-2012; 6582-6592 1744-683X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2012/sm/c2sm25489a info:eu-repo/semantics/altIdentifier/doi/10.1039/c2sm25489a |
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 |
dc.publisher.none.fl_str_mv |
Royal Society of Chemistry |
publisher.none.fl_str_mv |
Royal Society of Chemistry |
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 |
_version_ |
1844613537439154176 |
score |
13.070432 |