Antibacterial and antiviral activities of transparent PVA coating films prepared by using solutions containing eluted ions from rare earth iodates

IF 2.3 4区材料科学 Q2 CHEMISTRY, APPLIED Journal of Coatings Technology and Research Pub Date : 2024-08-28 DOI:10.1007/s11998-024-00979-4

Kazuya Abe, Kayano Sunada, Yasuhide Mochizuki, Toshihiro Isobe, Takeshi Nagai, Hitoshi Ishiguro, Akira Nakajima

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Abstract

After powders of three rare earth iodates (Ce(IO₃)₄, Ce(IO₃)₃, δ-La(IO₃)₃) were dispersed in water, the constituent ions were eluted. After filtration, polyvinyl alcohol was dissolved in the filtrated solution. Then the solution was flow-coated to form coating films on glass substrates. The obtained coating films exhibited high transmittance in the visible wavelength range. IO₃⁻ was confirmed from the IR spectra measured using the ATR method. Fine precipitates were observed in the coating. The amount was greater on the surface than inside. The coating films prepared from Ce(IO₃)₃ and δ-La(IO₃)₃ possessed high antibacterial and antiviral activities against Escherichia coli, Staphylococcus aureus, bacteriophage Qβ, and bacteriophage Φ6 in the dark. Moreover, they inactivated viruses adsorbed from the gas phase.

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使用含有稀土碘酸盐洗脱离子的溶液制备透明 PVA 涂层薄膜的抗菌和抗病毒活性

将三种稀土碘酸盐（Ce(IO3)4、Ce(IO3)3 和 δ-La(IO3)3）的粉末分散在水中后，洗脱其中的离子。过滤后，在滤液中溶解聚乙烯醇。然后在玻璃基板上进行流涂，形成涂膜。所获得的涂膜在可见光波长范围内具有很高的透射率。使用 ATR 方法测量的红外光谱证实了 IO3-。在涂层中观察到了细小的沉淀物。表面的析出量大于内部。用 Ce(IO3)3 和 δ-La(IO3)3 制备的涂膜在黑暗条件下对大肠杆菌、金黄色葡萄球菌、噬菌体 Qβ 和噬菌体Φ6 具有很高的抗菌和抗病毒活性。此外，它们还能灭活从气相中吸附的病毒。

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来源期刊

Journal of Coatings Technology and Research 工程技术-材料科学：膜

CiteScore

4.30

自引率

8.70%

发文量

130

审稿时长

2.5 months

期刊介绍： Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.