Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study

Autores
Vallejo Lozada, William Andrés; Navarro Gamarra, Karen Eugenia; Diaz Uribe, Carlos Enrique; Schott, Eduardo; Zarate, Ximena; Romero, Eduard
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this article, we studied the antimicrobial activity of TiO2 sensitized by the Zn(II)-tetracarboxy-phthalocyanine (TcPcZn) complex using TiO2-Degussa P25 as a semiconductor source. The TiO2 thin films were deposited by the doctor blade method and were sensitized by the chemisorption process. The obtained compounds were characterized using Fourier transform infrared spectroscopy, UV-vis spectrophotometry, Raman spectroscopy, diffuse reflectance spectroscopy, and scanning electron microscopy. Furthermore, we studied the stability of the adsorbed sensitizer on the semiconductor surface by using the density functional theory (DFT). Additionally, we determined the antimicrobial activity of TcPcZn-TiO2 against methicillin-resistant Staphylococcus aureus (MRSA). The Raman and optical results confirmed the sensitizing process. The TcPcZn-TiO2 thin films showed radiation absorption in the visible range of the electromagnetic spectrum (600-750 nm), and the dye anchored on the TiO2 surface had a band gap of 1.58 eV. The DFT study showed that TcPcZn supported on any phase of Degussa P25 is stable, making them suitable to act as catalysts in the proposed reactions. Finally, the TcPcZn-TiO2 thin films reached 76.5% of inhibition activity against MRSA.
Fil: Vallejo Lozada, William Andrés. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Navarro Gamarra, Karen Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Diaz Uribe, Carlos Enrique. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Schott, Eduardo. Pontificia Universidad Católica de Chile; Chile
Fil: Zarate, Ximena. Universidad Autónoma de Chile; Chile
Fil: Romero, Eduard. Universidad Nacional de Colombia; Colombia
Materia
TiO2 SENSITIZED
ANTIMICROBIAL ACTIVITY
MRSA
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/172974
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/172974
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental StudyVallejo Lozada, William AndrésNavarro Gamarra, Karen EugeniaDiaz Uribe, Carlos EnriqueSchott, EduardoZarate, XimenaRomero, EduardTiO2 SENSITIZEDANTIMICROBIAL ACTIVITYMRSAhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this article, we studied the antimicrobial activity of TiO2 sensitized by the Zn(II)-tetracarboxy-phthalocyanine (TcPcZn) complex using TiO2-Degussa P25 as a semiconductor source. The TiO2 thin films were deposited by the doctor blade method and were sensitized by the chemisorption process. The obtained compounds were characterized using Fourier transform infrared spectroscopy, UV-vis spectrophotometry, Raman spectroscopy, diffuse reflectance spectroscopy, and scanning electron microscopy. Furthermore, we studied the stability of the adsorbed sensitizer on the semiconductor surface by using the density functional theory (DFT). Additionally, we determined the antimicrobial activity of TcPcZn-TiO2 against methicillin-resistant Staphylococcus aureus (MRSA). The Raman and optical results confirmed the sensitizing process. The TcPcZn-TiO2 thin films showed radiation absorption in the visible range of the electromagnetic spectrum (600-750 nm), and the dye anchored on the TiO2 surface had a band gap of 1.58 eV. The DFT study showed that TcPcZn supported on any phase of Degussa P25 is stable, making them suitable to act as catalysts in the proposed reactions. Finally, the TcPcZn-TiO2 thin films reached 76.5% of inhibition activity against MRSA.Fil: Vallejo Lozada, William Andrés. Universidad del Atlantico. Facultad de Cs. Basicas; ColombiaFil: Navarro Gamarra, Karen Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad del Atlantico. Facultad de Cs. Basicas; ColombiaFil: Diaz Uribe, Carlos Enrique. Universidad del Atlantico. Facultad de Cs. Basicas; ColombiaFil: Schott, Eduardo. Pontificia Universidad Católica de Chile; ChileFil: Zarate, Ximena. Universidad Autónoma de Chile; ChileFil: Romero, Eduard. Universidad Nacional de Colombia; ColombiaAmerican Chemical Society2021-06info: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/11336/172974Vallejo Lozada, William Andrés; Navarro Gamarra, Karen Eugenia; Diaz Uribe, Carlos Enrique; Schott, Eduardo; Zarate, Ximena; et al.; Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study; American Chemical Society; ACS Omega; 6; 21; 6-2021; 13637-136462470-1343CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/10.1021/acsomega.1c00658#info:eu-repo/semantics/altIdentifier/doi/10.1021/acsomega.1c00658info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T14:33:32Zoai:ri.conicet.gov.ar:11336/172974instacron: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:34982025-12-23 14:33:32.44CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
title Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
spellingShingle Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
Vallejo Lozada, William Andrés
TiO2 SENSITIZED
ANTIMICROBIAL ACTIVITY
MRSA
title_short Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
title_full Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
title_fullStr Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
title_full_unstemmed Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
title_sort Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study
dc.creator.none.fl_str_mv Vallejo Lozada, William Andrés
Navarro Gamarra, Karen Eugenia
Diaz Uribe, Carlos Enrique
Schott, Eduardo
Zarate, Ximena
Romero, Eduard
author Vallejo Lozada, William Andrés
author_facet Vallejo Lozada, William Andrés
Navarro Gamarra, Karen Eugenia
Diaz Uribe, Carlos Enrique
Schott, Eduardo
Zarate, Ximena
Romero, Eduard
author_role author
author2 Navarro Gamarra, Karen Eugenia
Diaz Uribe, Carlos Enrique
Schott, Eduardo
Zarate, Ximena
Romero, Eduard
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv TiO2 SENSITIZED
ANTIMICROBIAL ACTIVITY
MRSA
topic TiO2 SENSITIZED
ANTIMICROBIAL ACTIVITY
MRSA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this article, we studied the antimicrobial activity of TiO2 sensitized by the Zn(II)-tetracarboxy-phthalocyanine (TcPcZn) complex using TiO2-Degussa P25 as a semiconductor source. The TiO2 thin films were deposited by the doctor blade method and were sensitized by the chemisorption process. The obtained compounds were characterized using Fourier transform infrared spectroscopy, UV-vis spectrophotometry, Raman spectroscopy, diffuse reflectance spectroscopy, and scanning electron microscopy. Furthermore, we studied the stability of the adsorbed sensitizer on the semiconductor surface by using the density functional theory (DFT). Additionally, we determined the antimicrobial activity of TcPcZn-TiO2 against methicillin-resistant Staphylococcus aureus (MRSA). The Raman and optical results confirmed the sensitizing process. The TcPcZn-TiO2 thin films showed radiation absorption in the visible range of the electromagnetic spectrum (600-750 nm), and the dye anchored on the TiO2 surface had a band gap of 1.58 eV. The DFT study showed that TcPcZn supported on any phase of Degussa P25 is stable, making them suitable to act as catalysts in the proposed reactions. Finally, the TcPcZn-TiO2 thin films reached 76.5% of inhibition activity against MRSA.
Fil: Vallejo Lozada, William Andrés. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Navarro Gamarra, Karen Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Diaz Uribe, Carlos Enrique. Universidad del Atlantico. Facultad de Cs. Basicas; Colombia
Fil: Schott, Eduardo. Pontificia Universidad Católica de Chile; Chile
Fil: Zarate, Ximena. Universidad Autónoma de Chile; Chile
Fil: Romero, Eduard. Universidad Nacional de Colombia; Colombia
description In this article, we studied the antimicrobial activity of TiO2 sensitized by the Zn(II)-tetracarboxy-phthalocyanine (TcPcZn) complex using TiO2-Degussa P25 as a semiconductor source. The TiO2 thin films were deposited by the doctor blade method and were sensitized by the chemisorption process. The obtained compounds were characterized using Fourier transform infrared spectroscopy, UV-vis spectrophotometry, Raman spectroscopy, diffuse reflectance spectroscopy, and scanning electron microscopy. Furthermore, we studied the stability of the adsorbed sensitizer on the semiconductor surface by using the density functional theory (DFT). Additionally, we determined the antimicrobial activity of TcPcZn-TiO2 against methicillin-resistant Staphylococcus aureus (MRSA). The Raman and optical results confirmed the sensitizing process. The TcPcZn-TiO2 thin films showed radiation absorption in the visible range of the electromagnetic spectrum (600-750 nm), and the dye anchored on the TiO2 surface had a band gap of 1.58 eV. The DFT study showed that TcPcZn supported on any phase of Degussa P25 is stable, making them suitable to act as catalysts in the proposed reactions. Finally, the TcPcZn-TiO2 thin films reached 76.5% of inhibition activity against MRSA.
publishDate 2021
dc.date.none.fl_str_mv 2021-06
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/11336/172974
Vallejo Lozada, William Andrés; Navarro Gamarra, Karen Eugenia; Diaz Uribe, Carlos Enrique; Schott, Eduardo; Zarate, Ximena; et al.; Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study; American Chemical Society; ACS Omega; 6; 21; 6-2021; 13637-13646
2470-1343
CONICET Digital
CONICET
url http://hdl.handle.net/11336/172974
identifier_str_mv Vallejo Lozada, William Andrés; Navarro Gamarra, Karen Eugenia; Diaz Uribe, Carlos Enrique; Schott, Eduardo; Zarate, Ximena; et al.; Zn(II)-tetracarboxy-phthalocyanine-Sensitized TiO 2 Thin Films as Antimicrobial Agents under Visible Irradiation: a Combined DFT and Experimental Study; American Chemical Society; ACS Omega; 6; 21; 6-2021; 13637-13646
2470-1343
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.acs.org/doi/10.1021/acsomega.1c00658#
info:eu-repo/semantics/altIdentifier/doi/10.1021/acsomega.1c00658
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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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score 12.441415

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