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Fabrication and evaluation of durable, optically clear, and self-disinfecting films

Polymer Journal volume 53, pages 1383–1391 (2021)Cite this article

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Abstract

Phenoxy-substituted phthalocyanine zinc (PPcZn) was synthesized and used as a photosensitizer to prepare a variety of self-disinfecting films by incorporating it into a cellulose acetate (CA) film at various concentrations. The generation of singlet oxygen (1O2) from the films containing PPcZn irradiated with visible light was detected by a film containing 1,3-diphenylisobenzofuran (DPBF). The rate of 1O2 generation followed a pseudofirst-order kinetic model. Antiviral activity was confirmed under visible light irradiation using Bacteriophage Qβ. The film exhibited superior water resistance, photostability, mechanical strength, and sustained 1O2 production over 6 months under continuous exposure to room light. These data show the promise of this film in real-life applications as self-disinfecting surfaces.

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Authors and Affiliations

  1. Nippon Shokubai Research Alliance Laboratories, Osaka University, Osaka, Japan

    Nobuyuki Harada

  2. Research Center, Nippon Shokubai Co. Ltd., Kawasaki, Kanagawa, Japan

    Kiyoshi Masuda

  3. Research Center, Nippon Shokubai Co. Ltd., Osaka, Japan

    Jun-ich Nakamura

  4. Department of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, Japan

    Hiroshi Uyama

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  1. Nobuyuki Harada
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  4. Hiroshi Uyama
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Correspondence to Nobuyuki Harada or Hiroshi Uyama.

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Harada, N., Masuda, K., Nakamura, Ji. et al. Fabrication and evaluation of durable, optically clear, and self-disinfecting films. Polym J 53, 1383–1391 (2021). https://doi.org/10.1038/s41428-021-00532-9

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  • DOI: https://doi.org/10.1038/s41428-021-00532-9

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