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Journal of Sol-Gel Science and Technology

Erschienen in:

15.06.2018 | Original Paper: Sol-gel and hybrid materials for biological and health (medical) applications

Light-activated hybrid organic/inorganic antimicrobial coatings

verfasst von: Esin Akarsu, Ramazan Uslu

Erschienen in: Journal of Sol-Gel Science and Technology | Ausgabe 1/2018

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Abstract

Light-activated antimicrobial coatings were obtained by the covalently immobilizing photo-sensitizers in a hybrid organic/inorganic matrix. These coatings were deposited via sol-gel chemistry using epoxy and methyl functional silanes. The light-activated chromophores used in this study were Methylene Blue, Toluidine Blue O, and Rose Bengal. The immobilized photo-sensitizers did not leach from the coatings. The mechanically durable hybrid coatings comprising 2.5% by weight of Rose Bengal had a good adhesion to the glass surface. These coatings were tested for the photo-deactivation of Escherichia coli and Staphylococcus aureus using illumination by a commercial fluorescent lamp. Log reduction of E. coli and S. aureus were >4 when illuminated by the fluorescent lamp in 1 and 3 h, respectively. Due to its high mechanical durability and chemical resistance, such light-activated hybrid coatings are promising candidates for indoor applications in healthcare facilities.

Vorheriger Artikel Selective aerobic photocatalytic oxidation of benzyl alcohol over spherical structured WO3/TiO2 nanocomposite under visible light irradiation

Nächster Artikel Freeze-drying assisted sol–gel-derived silica-based particles embedding iron: synthesis and characterization

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Titel: Light-activated hybrid organic/inorganic antimicrobial coatings
verfasst von: Esin Akarsu
Ramazan Uslu
Publikationsdatum: 15.06.2018
Verlag: Springer US
Erschienen in: Journal of Sol-Gel Science and Technology / Ausgabe 1/2018
Print ISSN: 0928-0707
Elektronische ISSN: 1573-4846
DOI: https://doi.org/10.1007/s10971-018-4714-y

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