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Antibacterial nanofiber materials activated by light

SYSNO ASEP	0365985
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Antibacterial nanofiber materials activated by light
Tvůrce(i)	Jesenská, S. (CZ) Plištil, L. (CZ) Kubát, Pavel (UFCH-W)_{RID, ORCID, SAI} Lang, Kamil (UACH-T)_{SAI, RID, ORCID} Brožová, Libuše (UMCH-V)_{RID, ORCID} Popelka, Štěpán (UMCH-V)_RID Szatmáry, Lórant (UACH-T)_{RID, ORCID, SAI} Mosinger, Jiří (UACH-T)_{RID, ORCID, SAI}
Zdroj.dok.	Journal of Biomedical Materials Research. Part A. - : Wiley - ISSN 1549-3296 99A, č. 4 (2011), s. 676-683
Poč.str.	8 s.
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	antibacterial nanofiber materials ; photoactive ; singlet oxygen
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
CEP	GAP208/10/1678 GA ČR - Grantová agentura ČR
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z40320502 - UACH-T (2005-2011)
	AV0Z40500505 - UMCH-V (2005-2011)
UT WOS	000297019200018
DOI	10.1002/jbm.a.33218
Anotace	Electrospun polymeric nanofiber materials doped with 5,10,15,20-tetraphenylporphyrin (TPP) photosensitizer were prepared from four different polymers and were characterized with microscopic methods, steady-state, and time-resolved fluorescence and absorption spectroscopy. The polymers used included polyurethane Larithane™ (PUR), polystyrene (PS), polycaprolactone (PCL), and polyamide 6 (PA6). The antibacterial activity of all nanofiber materials against E. coli was activated by visible light and it was dependent on oxygen permeability/diffusion coefficients and the diameter of the polymeric nanofibers. This activity is based on oxidation ability of singlet oxygen O2(1Δg) that is generated upon irradiation. All tested nanofiber materials exhibited prolonged antibacterial properties, even in the dark after long-duration irradiation. The post-irradiation effect was explained by the photogeneration of H2O2, which provided the material with long-lasting antibacterial properties.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2012

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