Chennoufi Ikhlas Hani, Zanane Chorouk, Ameslek Mehdi, Zahir Hafida, El Louali Mostafa, Latrache Hassan
Department of Biology, Laboratory of Industrial and Surface Engineering, Research Team of "Bioprocesses and Bio Interfaces", Faculty of Sciences and Techniques, Sultan Moulay Slimane University, Beni Mellal, Morocco.
Department of Material Science, Dispersive Solids Group, Faculty of Materials and Geosciences, Technical University, Darmstadt, Germany.
Iran J Microbiol. 2023 Apr;15(2):303-310. doi: 10.18502/ijm.v15i2.12482.
Adhesion of microorganisms on facemask surfaces is a major problem that produces contamination of the mask wearer either by inhalation or by direct contact. Generally, physicochemical properties of the material and the microorganism are responsible for this adhesion and are also reported to influence the filtration efficiency of facemasks. However, theses surface proprieties and their effect on particles attachment on facemask materials remain poorly documented. The purpose of this study was to investigate the physicochemical properties of seven facemasks and evaluate the influence of these characteristics on the adhesion of
Physicochemical properties is done by contact angle method and scanning electron microscopy while theoretical adhesion of is done according to XDLVO approach.
The obtained results showed that all masks have a hydrophobic character. The electron donor and electron acceptor parameters change depending on each mask. Chemical analysis demonstrates the presence of two chemical elements (carbon and oxygen). Predictive adhesion demonstrate that has an attractive behavior towards the masks used but the potential of adhesion is not the same.
Such information is valuable to understand attachment of biological particles and to contribute in the inhibition of this attachment.
微生物在口罩表面的黏附是一个主要问题，会通过吸入或直接接触对口罩佩戴者造成污染。一般来说，材料和微生物的物理化学性质导致了这种黏附，并且据报道这些性质也会影响口罩的过滤效率。然而，这些表面性质及其对面罩材料上颗粒附着的影响仍缺乏充分记录。本研究的目的是调查七种口罩的物理化学性质，并评估这些特性对[微生物名称未给出]黏附的影响。
通过接触角法和扫描电子显微镜测定物理化学性质，而[微生物名称未给出]的理论黏附则根据XDLVO方法进行测定。
所得结果表明，所有口罩都具有疏水性。电子供体和电子受体参数因每种口罩而异。化学分析表明存在两种化学元素（碳和氧）。预测黏附表明[微生物名称未给出]对所使用的口罩具有吸引行为，但黏附潜力并不相同。
此类信息对于理解生物颗粒的附着以及有助于抑制这种附着具有重要价值。
