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Photofunctional Polyurethane Nanofabrics Doped by Zinc Tetraphenylporphyrin and Zinc Phthalocyanine Photosensitizers

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Abstract

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(1Δg) with a lifetime of about 15 μs 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).

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Acknowledgment

This research was supported by the Czech Science Foundation (Nos. 203/08/0831, 203/07/1424, and 203/06/1244)

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Authors and Affiliations

  1. Faculty of Science, Charles University in Prague, Hlavova 2030, 128 40, Praha 2, Czech Republic

    Jiří Mosinger

  2. Institute of Inorganic Chemistry, v.v.i., Academy of Sciences of the Czech Republic, 250 68, Řež, Czech Republic

    Jiří Mosinger & Kamil Lang

  3. J. Heyrovský Institute of Physical Chemistry, v.v.i., Academy of Sciences of the Czech Republic, Dolejškova 3, 18223, Praha 8, Czech Republic

    Pavel Kubát, Jan Sýkora & Martin Hof

  4. Elmarco, s.r.o., V Horkách 76/18, 460 07, Liberec 9, Czech Republic

    Lukáš Plíštil

  5. Mount Sinai School of Medicine, 1425 Madison Avenue, New York, NY, 10029, USA

    Bedřich Mosinger Jr.

Authors
  1. Jiří Mosinger
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  2. Kamil Lang
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  3. Pavel Kubát
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  4. Jan Sýkora
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  5. Martin Hof
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  6. Lukáš Plíštil
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  7. Bedřich Mosinger Jr.
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Correspondence to Pavel Kubát.

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Mosinger, J., Lang, K., Kubát, P. et al. Photofunctional Polyurethane Nanofabrics Doped by Zinc Tetraphenylporphyrin and Zinc Phthalocyanine Photosensitizers. J Fluoresc 19, 705–713 (2009). https://doi.org/10.1007/s10895-009-0464-0

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  • DOI: https://doi.org/10.1007/s10895-009-0464-0

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