Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility

Autores
Gonzalez, Ariel; Miñan, Alejandro Guillermo; Grillo, Claudia Alejandra; Schilardi, Patricia Laura; Fernandez Lorenzo, Monica Alicia
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Titanium (Ti) and its alloys are widely used in the construction of permanent orthopedic and cardiovascular implants. However, one of the most frequent causes of failures are bacterial infections by Staphylococcus aureus. This is aggravated by the abusive use of antibiotics that generate microbial resistance to conventional therapies. As a consequence, new antimicrobial nanotechnologies (AMN) emerge as promising alternatives to prevent prosthetic infections. The aim of this work was to evaluate the antimicrobial effect of an innovative AMN: thymol (TOH, phenolic phytocompound) nanofilms adsorbed on Ti (NPTOH-Ti) against S. aureus. The biocompatibility was also determined using preosteoblast cells (MC3T3-E1). To that end, 1 cm diameter grade 2 Ti discs were used and TOH was adsorbed onto their surface by 2 h immersion in 0.1 M TOH acid solution. NPTOH-Ti was detected by infrared spectroscopy (FTIR-ATR). The antibiofilm activity of NPTOH-Ti and Ti (control) was determined by immersing the metal discs in a suspension of S. aureus (108 bacteria/ml) for 3 h. Subsequently, the number of bacteria adhered on the discs was caunted after sonication by colony forming unit (CFU). In addition, Live/Dead (Invitrogen) staining was used to determine if the adhered bacteria were alive or dead. Finally, biocompatibility of NPTOH-Ti and Ti was assessed by staining the preosteoblast cells with acridine orange. The results showed that NPTOH-Ti has effective anti-biofilm properties. On the one hand, viable bacteria were not observed by the plating count method and Live/Dead staining exhibited only dead (red) bacteria on the surface. On the other hand, control Ti revealed 4 ± 0.5 x105 adhered bacteria that were mostly (95 %) alive (green). In addition, NPTOH-Ti and Ti showed similar cell adhesion and growth (107 ± 12 and 100 ± 16 % respectively; p>0.05). It was concluded that NPTOH-Ti are biocompatible and have anti-biofilm properties which make them promising to prevent prosthetic infections.
Fil: Gonzalez, Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Miñan, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Grillo, Claudia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
LXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio
Argentina
Sociedad Argentina de Investigación Clínica
Asociación Argentina de Farmacología Experimental
Sociedad Argentina de Biología
Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio
Sociedad Argentina de Protozoología
The Histochemical Society
Materia
TITANIUM
NANOFILM
ANTIMICROBIAL
THYMOL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/205643
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibilityGonzalez, ArielMiñan, Alejandro GuillermoGrillo, Claudia AlejandraSchilardi, Patricia LauraFernandez Lorenzo, Monica AliciaTITANIUMNANOFILMANTIMICROBIALTHYMOLhttps://purl.org/becyt/ford/3.4https://purl.org/becyt/ford/3Titanium (Ti) and its alloys are widely used in the construction of permanent orthopedic and cardiovascular implants. However, one of the most frequent causes of failures are bacterial infections by Staphylococcus aureus. This is aggravated by the abusive use of antibiotics that generate microbial resistance to conventional therapies. As a consequence, new antimicrobial nanotechnologies (AMN) emerge as promising alternatives to prevent prosthetic infections. The aim of this work was to evaluate the antimicrobial effect of an innovative AMN: thymol (TOH, phenolic phytocompound) nanofilms adsorbed on Ti (NPTOH-Ti) against S. aureus. The biocompatibility was also determined using preosteoblast cells (MC3T3-E1). To that end, 1 cm diameter grade 2 Ti discs were used and TOH was adsorbed onto their surface by 2 h immersion in 0.1 M TOH acid solution. NPTOH-Ti was detected by infrared spectroscopy (FTIR-ATR). The antibiofilm activity of NPTOH-Ti and Ti (control) was determined by immersing the metal discs in a suspension of S. aureus (108 bacteria/ml) for 3 h. Subsequently, the number of bacteria adhered on the discs was caunted after sonication by colony forming unit (CFU). In addition, Live/Dead (Invitrogen) staining was used to determine if the adhered bacteria were alive or dead. Finally, biocompatibility of NPTOH-Ti and Ti was assessed by staining the preosteoblast cells with acridine orange. The results showed that NPTOH-Ti has effective anti-biofilm properties. On the one hand, viable bacteria were not observed by the plating count method and Live/Dead staining exhibited only dead (red) bacteria on the surface. On the other hand, control Ti revealed 4 ± 0.5 x105 adhered bacteria that were mostly (95 %) alive (green). In addition, NPTOH-Ti and Ti showed similar cell adhesion and growth (107 ± 12 and 100 ± 16 % respectively; p>0.05). It was concluded that NPTOH-Ti are biocompatible and have anti-biofilm properties which make them promising to prevent prosthetic infections.Fil: Gonzalez, Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Miñan, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Grillo, Claudia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaFil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; ArgentinaLXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de LaboratorioArgentinaSociedad Argentina de Investigación ClínicaAsociación Argentina de Farmacología ExperimentalSociedad Argentina de BiologíaAsociación Argentina de Ciencia y Tecnología de Animales de LaboratorioSociedad Argentina de ProtozoologíaThe Histochemical SocietyFundación Revista Medicina2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/205643Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility; LXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio; Argentina; 2019; 51-521669-91060025-7680CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://medicinabuenosaires.com/revistas/vol79-19/s4/vol79_s4.pdfinfo:eu-repo/semantics/altIdentifier/url/https://nanobiotec.conicet.gov.ar/participacion-de-investigadores-de-nanobiotec-en-saic-safe-sab-sap-2019/Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:27Zoai:ri.conicet.gov.ar:11336/205643instacron: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 09:57:27.698CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
title Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
spellingShingle Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
Gonzalez, Ariel
TITANIUM
NANOFILM
ANTIMICROBIAL
THYMOL
title_short Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
title_full Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
title_fullStr Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
title_full_unstemmed Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
title_sort Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility
dc.creator.none.fl_str_mv Gonzalez, Ariel
Miñan, Alejandro Guillermo
Grillo, Claudia Alejandra
Schilardi, Patricia Laura
Fernandez Lorenzo, Monica Alicia
author Gonzalez, Ariel
author_facet Gonzalez, Ariel
Miñan, Alejandro Guillermo
Grillo, Claudia Alejandra
Schilardi, Patricia Laura
Fernandez Lorenzo, Monica Alicia
author_role author
author2 Miñan, Alejandro Guillermo
Grillo, Claudia Alejandra
Schilardi, Patricia Laura
Fernandez Lorenzo, Monica Alicia
author2_role author
author
author
author
dc.subject.none.fl_str_mv TITANIUM
NANOFILM
ANTIMICROBIAL
THYMOL
topic TITANIUM
NANOFILM
ANTIMICROBIAL
THYMOL
purl_subject.fl_str_mv https://purl.org/becyt/ford/3.4
https://purl.org/becyt/ford/3
dc.description.none.fl_txt_mv Titanium (Ti) and its alloys are widely used in the construction of permanent orthopedic and cardiovascular implants. However, one of the most frequent causes of failures are bacterial infections by Staphylococcus aureus. This is aggravated by the abusive use of antibiotics that generate microbial resistance to conventional therapies. As a consequence, new antimicrobial nanotechnologies (AMN) emerge as promising alternatives to prevent prosthetic infections. The aim of this work was to evaluate the antimicrobial effect of an innovative AMN: thymol (TOH, phenolic phytocompound) nanofilms adsorbed on Ti (NPTOH-Ti) against S. aureus. The biocompatibility was also determined using preosteoblast cells (MC3T3-E1). To that end, 1 cm diameter grade 2 Ti discs were used and TOH was adsorbed onto their surface by 2 h immersion in 0.1 M TOH acid solution. NPTOH-Ti was detected by infrared spectroscopy (FTIR-ATR). The antibiofilm activity of NPTOH-Ti and Ti (control) was determined by immersing the metal discs in a suspension of S. aureus (108 bacteria/ml) for 3 h. Subsequently, the number of bacteria adhered on the discs was caunted after sonication by colony forming unit (CFU). In addition, Live/Dead (Invitrogen) staining was used to determine if the adhered bacteria were alive or dead. Finally, biocompatibility of NPTOH-Ti and Ti was assessed by staining the preosteoblast cells with acridine orange. The results showed that NPTOH-Ti has effective anti-biofilm properties. On the one hand, viable bacteria were not observed by the plating count method and Live/Dead staining exhibited only dead (red) bacteria on the surface. On the other hand, control Ti revealed 4 ± 0.5 x105 adhered bacteria that were mostly (95 %) alive (green). In addition, NPTOH-Ti and Ti showed similar cell adhesion and growth (107 ± 12 and 100 ± 16 % respectively; p>0.05). It was concluded that NPTOH-Ti are biocompatible and have anti-biofilm properties which make them promising to prevent prosthetic infections.
Fil: Gonzalez, Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Miñan, Alejandro Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Grillo, Claudia Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Schilardi, Patricia Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
Fil: Fernandez Lorenzo, Monica Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas; Argentina
LXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio
Argentina
Sociedad Argentina de Investigación Clínica
Asociación Argentina de Farmacología Experimental
Sociedad Argentina de Biología
Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio
Sociedad Argentina de Protozoología
The Histochemical Society
description Titanium (Ti) and its alloys are widely used in the construction of permanent orthopedic and cardiovascular implants. However, one of the most frequent causes of failures are bacterial infections by Staphylococcus aureus. This is aggravated by the abusive use of antibiotics that generate microbial resistance to conventional therapies. As a consequence, new antimicrobial nanotechnologies (AMN) emerge as promising alternatives to prevent prosthetic infections. The aim of this work was to evaluate the antimicrobial effect of an innovative AMN: thymol (TOH, phenolic phytocompound) nanofilms adsorbed on Ti (NPTOH-Ti) against S. aureus. The biocompatibility was also determined using preosteoblast cells (MC3T3-E1). To that end, 1 cm diameter grade 2 Ti discs were used and TOH was adsorbed onto their surface by 2 h immersion in 0.1 M TOH acid solution. NPTOH-Ti was detected by infrared spectroscopy (FTIR-ATR). The antibiofilm activity of NPTOH-Ti and Ti (control) was determined by immersing the metal discs in a suspension of S. aureus (108 bacteria/ml) for 3 h. Subsequently, the number of bacteria adhered on the discs was caunted after sonication by colony forming unit (CFU). In addition, Live/Dead (Invitrogen) staining was used to determine if the adhered bacteria were alive or dead. Finally, biocompatibility of NPTOH-Ti and Ti was assessed by staining the preosteoblast cells with acridine orange. The results showed that NPTOH-Ti has effective anti-biofilm properties. On the one hand, viable bacteria were not observed by the plating count method and Live/Dead staining exhibited only dead (red) bacteria on the surface. On the other hand, control Ti revealed 4 ± 0.5 x105 adhered bacteria that were mostly (95 %) alive (green). In addition, NPTOH-Ti and Ti showed similar cell adhesion and growth (107 ± 12 and 100 ± 16 % respectively; p>0.05). It was concluded that NPTOH-Ti are biocompatible and have anti-biofilm properties which make them promising to prevent prosthetic infections.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
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status_str publishedVersion
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dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/205643
Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility; LXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio; Argentina; 2019; 51-52
1669-9106
0025-7680
CONICET Digital
CONICET
url http://hdl.handle.net/11336/205643
identifier_str_mv Nanofilms of adsorbed thymol formed on titanium surfaces for biomedical applications. Antimicrobial activity and biocompatibility; LXIV Reunión Anual de la Sociedad Argentina de Investigación Clínica; LI Reunión Anual de la Asociación Argentina de Farmacología Experimental; XXI Reunión Anual de la Sociedad Argentina de Biología; XXXI Reunión Anual de la Sociedad Argentina de Protozoología; IX Reunión Anual de la Asociación Argentina de Nanomedicinas y VI Reunión Científica Regional de la Asociación Argentina de Ciencia y Tecnología de Animales de Laboratorio; Argentina; 2019; 51-52
1669-9106
0025-7680
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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dc.publisher.none.fl_str_mv Fundación Revista Medicina
publisher.none.fl_str_mv Fundación Revista Medicina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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