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首页> 外文期刊>Case Studies in Construction Materials >Suspensions of metal nanoparticles as a basis for protection of internal surfaces of building structures from biodegradation
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Suspensions of metal nanoparticles as a basis for protection of internal surfaces of building structures from biodegradation

机译：金属纳米颗粒的悬浮液作为保护从生物降解的建筑结构内表面的基础

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The study objects were nanoparticles of zinc oxide and titanium dioxide. The aim was to investigate the dependence of antimicrobial activity of solutions with nanosize powders of different particle sizes and concentrations. It has been established that nanoparticles of zinc oxide (size 2?4?nm and 5?7?nm) at a suspension concentration varying from 0.01% to 0.25% exhibit effective antifungal and antibacterial properties in relation to the eight types of microorganisms most commonly affecting internal surface of building structures (the concentration of microorganisms decreases by 2–3 orders of magnitude depending on their type). Nanoparticles of titanium (5?15?nm and 10?20?nm) demonstrated low antimicrobial activity.
机译：研究对象是氧化锌和二氧化钛的纳米颗粒。目的是探讨抗菌活性对不同颗粒尺寸和浓度的纳米型粉末的抗菌活性的依赖性。已经确定，氧化锌纳米颗粒（大小2？4？Nm和5？7？nm）不同于0.01％至0.25％的悬浮浓度，表现出有效的抗真菌和抗菌性质，而涉及八种类型的微生物影响建筑物结构的内表面（微生物浓度根据其类型减少2-3个级）。钛的钛（5？15？NM和10？20？NM）显示出低抗菌活性。

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