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dc.contributor.author
Reynoso, Eugenia
dc.contributor.author
Ferreyra, Darío David
dc.contributor.author
Durantini, Edgardo Néstor
dc.contributor.author
Spesia, Mariana Belen
dc.date.available
2021-01-22T13:38:11Z
dc.date.issued
2019-09
dc.identifier.citation
Reynoso, Eugenia; Ferreyra, Darío David; Durantini, Edgardo Néstor; Spesia, Mariana Belen; Photodynamic inactivation to prevent and disrupt Staphylococcus aureus biofilm under different media conditions; Wiley Blackwell Publishing, Inc; Photodermatology, Photoimmunology & Photomedicine; 35; 5; 9-2019; 322-331
dc.identifier.issn
0905-4383
dc.identifier.uri
http://hdl.handle.net/11336/123452
dc.description.abstract
Objective: The goal of this work was to investigate the photodynamic activity of 5,10,15,20-tetrakis[4-(3-N,N-dimethylaminopropoxy)phenyl]chlorin (TAPC) and zinc(II) 2,9,16,23-tetrakis[4-(N-methylpyridyloxy)]phthalocyanine iodide (ZnPPc4+) as photosensitizers to inactivate Staphylococcus aureus biofilms and prevent their formations in different culture media. Methods: We incubated S aureus biofilms in different culture media: tryptic soy (TS), nutrient (N), Müeller Hinton (MH) broth, TS with glucose 2 and 5% (w/v) with 5 μM ZnPPc4+ or TAPC and irradiated with visible light (350-800 nm). Photodynamic inactivation (PDI) was determined by count of colony forming units (CFU) and crystal violet method. Furthermore, we studied PDI effect on biofilm development in TS broth. Finally, we examined the effects of PDI on the structure of S aureus biofilm. Results: Greater inactivation was achieved, using TAPC or ZnPPc4+, when S aureus biofilm was grown in N or MH broths rather than in TS. Besides, glucose addition to the medium decreases the ability to develop biofilm and increase the photoinactivation capacity. Prevention of 3 log biofilm developments was obtained when S aureus cultures were treated with TAPC (10 μM) and 108 J/cm2 in TS broth and the number of CFU was counted after 24 hours. Moreover, microscopy studies demonstrated modifications in biofilm architecture. Conclusions: These results indicate that TAPC and ZnPPc4+ may be promising photosensitizers for photodynamic inactivation of S aureus biofilms or to prevent their formation.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ANTIMICROBIAL
dc.subject
BIOFILM
dc.subject
CHLORIN
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PHOTODYNAMIC INACTIVATION
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PHTHALOCYANINE
dc.subject
STAPHYLOCOCCUS AUREUS
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Otras Ciencias Químicas
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Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Photodynamic inactivation to prevent and disrupt Staphylococcus aureus biofilm under different media conditions
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-05T18:33:06Z
dc.journal.volume
35
dc.journal.number
5
dc.journal.pagination
322-331
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Reynoso, Eugenia. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
dc.description.fil
Fil: Ferreyra, Darío David. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
dc.description.fil
Fil: Durantini, Edgardo Néstor. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
dc.description.fil
Fil: Spesia, Mariana Belen. Universidad Nacional de Río Cuarto. Instituto para el Desarrollo Agroindustrial y de la Salud. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto para el Desarrollo Agroindustrial y de la Salud; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
dc.journal.title
Photodermatology, Photoimmunology & Photomedicine
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/phpp.12477
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1111/phpp.12477
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