A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique

The dip coating process is one of the recognized techniques used to generate polymeric coatings on stents in an easy and low-cost way. However, there is a lack of information about the influence of the process parameters of this technique on complex geometries such as stents. This paper studies the...

ver descrição completa

Detalhes bibliográficos
Autores: Macías Naranjo, Mariana, Sánchez Domínguez, Margarita, Rubio Valle, José Fernando, Rodríguez, Ciro A., Martín Alfonso, José Enrique, García López, Erika, Vázquez Lepe, Elisa
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/23380
Acesso em linha:https://hdl.handle.net/10272/23380
Access Level:acceso abierto
Palavra-chave:Coronary artery stent
Dip coating
Polylactic acid
Thin film
Polymeric coating
3314 Tecnología Médica
id ES_08c38d3ad7bca90f79eaea4b037e82de
oai_identifier_str oai:ariasmontano.uhu.es:10272/23380
network_acronym_str ES
network_name_str España
repository_id_str
spelling A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating TechniqueMacías Naranjo, MarianaSánchez Domínguez, MargaritaRubio Valle, José FernandoRodríguez, Ciro A.Martín Alfonso, José EnriqueGarcía López, ErikaVázquez Lepe, ElisaCoronary artery stentDip coatingPolylactic acidThin filmPolymeric coating3314 Tecnología MédicaThe dip coating process is one of the recognized techniques used to generate polymeric coatings on stents in an easy and low-cost way. However, there is a lack of information about the influence of the process parameters of this technique on complex geometries such as stents. This paper studies the dip coating process parameters used to provide a uniform coating of PLA with a 4–10 µm thickness. A stainless-steel tube (AISI 316L) was laser-cut, electropolished, and dip-coated in a polylactic acid (PLA) solution whilst changing the process parameters. The samples were characterized to examine the coating’s uniformity, thickness, surface roughness, weight, and chemical composition. FTIR and Raman investigations indicated the presence of PLA on the stent’s surface, the chemical stability of PLA during the coating process, and the absence of residual chloroform in the coatings. Additionally, the water contact angle was measured to determine the hydrophilicity of the coating. Our results indicate that, when using entry and withdrawal speeds of 500 mm min−1 and a 15 s immersion time, a uniform coating thickness was achieved throughout the tube and in the stent with an average thickness of 7.8 µm.MDPI20242024-01-0120242024-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/23380reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/233802026-06-02T14:58:11Z
dc.title.none.fl_str_mv A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
title A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
spellingShingle A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
Macías Naranjo, Mariana
Coronary artery stent
Dip coating
Polylactic acid
Thin film
Polymeric coating
3314 Tecnología Médica
title_short A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
title_full A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
title_fullStr A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
title_full_unstemmed A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
title_sort A Study of PLA Thin Film on SS 316L Coronary Stents Using a Dip Coating Technique
dc.creator.none.fl_str_mv Macías Naranjo, Mariana
Sánchez Domínguez, Margarita
Rubio Valle, José Fernando
Rodríguez, Ciro A.
Martín Alfonso, José Enrique
García López, Erika
Vázquez Lepe, Elisa
author Macías Naranjo, Mariana
author_facet Macías Naranjo, Mariana
Sánchez Domínguez, Margarita
Rubio Valle, José Fernando
Rodríguez, Ciro A.
Martín Alfonso, José Enrique
García López, Erika
Vázquez Lepe, Elisa
author_role author
author2 Sánchez Domínguez, Margarita
Rubio Valle, José Fernando
Rodríguez, Ciro A.
Martín Alfonso, José Enrique
García López, Erika
Vázquez Lepe, Elisa
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Coronary artery stent
Dip coating
Polylactic acid
Thin film
Polymeric coating
3314 Tecnología Médica
topic Coronary artery stent
Dip coating
Polylactic acid
Thin film
Polymeric coating
3314 Tecnología Médica
description The dip coating process is one of the recognized techniques used to generate polymeric coatings on stents in an easy and low-cost way. However, there is a lack of information about the influence of the process parameters of this technique on complex geometries such as stents. This paper studies the dip coating process parameters used to provide a uniform coating of PLA with a 4–10 µm thickness. A stainless-steel tube (AISI 316L) was laser-cut, electropolished, and dip-coated in a polylactic acid (PLA) solution whilst changing the process parameters. The samples were characterized to examine the coating’s uniformity, thickness, surface roughness, weight, and chemical composition. FTIR and Raman investigations indicated the presence of PLA on the stent’s surface, the chemical stability of PLA during the coating process, and the absence of residual chloroform in the coatings. Additionally, the water contact angle was measured to determine the hydrophilicity of the coating. Our results indicate that, when using entry and withdrawal speeds of 500 mm min−1 and a 15 s immersion time, a uniform coating thickness was achieved throughout the tube and in the stent with an average thickness of 7.8 µm.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-01-01
2024
2024-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10272/23380
url https://hdl.handle.net/10272/23380
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403063242981376
score 15.812429

Registos relacionados