Dual-Wavelength Photosensitizer Based on Phthalocyanine Nanodots for Multifunctional Composites with Enhanced Photodynamic Antibacterial, Photothermal Performance, and UV Protection
IF 8 2区 材料科学Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY
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引用次数: 0
Abstract
Designing efficient near-infrared photosensitive molecules and excellent photosensitive materials is a major challenge in the fields of photodynamic antibacterial and photothermal energy conversion. The Förster resonance energy transfer shows much promise for enhancing the photodynamic antibacterial property and photothermal performance. Herein, a novel water-soluble dual-band enhanced naphthylimide functionalized phthalocyanine photosensitizer is designed and synthesized. The designed dual-band enhanced photosensitizer, 2,9(10),16(17),23(24)-Tetrakis[N-Benzyl-N,N'-dimethyl-1-propanaminium-4-(N-hydroxyethyl)-1,8-naphthylimino] phthalocyanine Zinc(II) (NAPc-N), can self-assemble by the π–π stacking interactions to form nanodots with a size of ≈40–50 nm. Nanodot composites prepared using waterborne polyurethane (WPU), exhibit dual-wavelength photodynamic antibacterial at 440 and 680 nm irradiations, efficiently photothermal conversion, and excellent UV protection (UPF) performances. The produced singlet oxygen amount by NAPc-N shows tremendous enhancement in dual-wavelength irradiations. After 30 min under the blue and infrared lights, the antibacterial rate of NAPc-N against Staphylococcus aureus and Escherichia coli reaches 99.99%. The temperature of the NAPc-N composite can be heated up to 60 °C and the UPF value can be up to 128.23. These dual-wavelength enhanced photosensitizer nanodots hold significant potential for advanced photodynamic materials and biomaterials applications.
期刊介绍:
Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.