<br>用于被动真菌增殖控制的功能表面：表面微米和纳米形貌、材料和润湿特性的影响,ACS Applied Bio Materials

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用于被动真菌增殖控制的功能表面：表面微米和纳米形貌、材料和润湿特性的影响
ACS Applied Bio Materials ( IF 4.6 ) Pub Date : 2024-07-01 , DOI: 10.1021/acsabm.4c00387
Vasiliki Tselepi ₁ , Panagiotis Sarkiris ₂ , Dimitrios Nioras ₂ , Erminta Tsouko _{3,

4} , Dimitrios Sarris ₃ , Evangelos Gogolides ₂ , Kosmas Ellinas ₁

Affiliation

由于产生致病性和过敏性毒素，以及在敏感表面（即医疗设备）上形成真菌生物膜，真菌增殖会对人类健康产生不利影响。最重要的是，真菌活动引起的食物腐败是一个主要问题，每年食物损失超过 30%。在本研究中，研究了表面微米和纳米形貌、材料（铝、Al 和聚甲基丙烯酸甲酯、PMMA）以及润湿性对泡盛曲霉的影响。通过将表面浸入含有真菌孢子的悬浮液中并测量真菌生物量的生长，使用动态条件来监测真菌活性，同时还通过将具有最佳抗真菌特性的表面放置在琼脂板上的泡盛曲霉孢子悬浮液附近来评估它们。基于 Al 和 PMMA 的超疏水表面表现出类似被动的抗真菌特性，并且真菌生长显着减少（生物量降低 1.6-2.2 倍）。另一方面，超亲水性 PMMA 表面可增强真菌增殖，导致真菌总干重增加 2.6 倍。此外，两种材料的超疏水表面均表现出防污和抗粘附特性，而在琼脂平板上进行测试时，两种超疏水表面还会形成针对泡盛曲霉生长的“抑制”区。

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Functional Surfaces for Passive Fungal Proliferation Control: Effect of Surface Micro- and Nanotopography, Material, and Wetting Properties

Fungal proliferation can lead to adverse effects for human health, due to the production of pathogenic and allergenic toxins and also through the creation of fungal biofilms on sensitive surfaces (i.e., medical equipment). On top of that, food spoilage from fungal activity is a major issue, with food losses exceeding 30% annually. In this study, the effect of the surface micro- and nanotopography, material (aluminum, Al, and poly(methyl methacrylate), PMMA), and wettability against Aspergillus awamori is investigated. The fungal activity is monitored using dynamic conditions by immersing the surfaces inside fungal spore-containing suspensions and measuring the fungal biomass growth, while the surfaces with the optimum antifungal properties are also evaluated by placing them near spore suspensions of A. awamori on agar plates. Al- and PMMA-based superhydrophobic surfaces demonstrate a passive-like antifungal profile, and the fungal growth is significantly reduced (1.6–2.2 times lower biomass). On the other hand, superhydrophilic PMMA surfaces enhance fungal proliferation, resulting in a 2.6 times higher fungal total dry weight. In addition, superhydrophobic surfaces of both materials exhibit antifouling and antiadhesive properties, whereas both superhydrophobic surfaces also create an “inhibition” zone against the growth of A. awamori when tested on agar plates.

更新日期：2024-07-01

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