Polymeric polyurethane nanofabrics doped by zinc tetraphenylporphyrin (ZnTPP) and/or zinc phthalocyanine (ZnPc) photosensitizers were prepared by the electrospinning method and characterized by microscopic methods, steady-state and time-resolved fluorescence, and absorption spectroscopy. Nanofabrics doped by both ZnTPP and ZnPc efficiently harvest visible light to generate triplet states and singlet oxygen O2(1Delta(g)) with a lifetime of about 15 micros in air atmosphere. The energy transfer between the excited singlet states of ZnTPP and ground states of ZnPc is described in details. All nanofabrics have bactericidal surfaces and photooxidize inorganic and organic substrates. ZnTPP and ZnPc in the polyurethane nanofabrics are less photostable than incorporated free-base tetraphenylporphyrin (TPP).
- MeSH
- časové faktory MeSH
- fluorescenční spektrometrie MeSH
- fotochemie MeSH
- fotosenzibilizující látky chemie MeSH
- indoly chemie MeSH
- isoindoly MeSH
- kyslík chemie MeSH
- metaloporfyriny chemie MeSH
- molekulární struktura MeSH
- nanostruktury chemie MeSH
- organokovové sloučeniny chemie MeSH
- oxidace-redukce MeSH
- polyurethany chemická syntéza chemie MeSH
- povrchové vlastnosti MeSH
- sloučeniny zinku MeSH
- spektrofotometrie ultrafialová MeSH
- velikost částic MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- fotosenzibilizující látky MeSH
- indoly MeSH
- isoindoly MeSH
- kyslík MeSH
- metaloporfyriny MeSH
- organokovové sloučeniny MeSH
- polyurethany MeSH
- sloučeniny zinku MeSH
- zinc tetraphenylporphyrin MeSH Prohlížeč
- Zn(II)-phthalocyanine MeSH Prohlížeč
