十八烷基三氯氢硅
粘附
生物污染
生物膜
涂层
化学工程
表面改性
超亲水性
材料科学
聚苯乙烯
多孔性
微气泡
纳米技术
化学
复合材料
接触角
聚合物
膜
细菌
生物化学
物理
生物
超声波
声学
工程类
遗传学
作者
Khoa C. M. Le,Anh Thi Quynh Tran,Mai Vu,Phuong Vu Quynh Duong,Khoi Tan Nguyen
出处
期刊:Langmuir
[American Chemical Society]
日期:2024-01-10
卷期号:40 (3): 1698-1706
被引量:2
标识
DOI:10.1021/acs.langmuir.3c02773
摘要
Bacterial fouling and biofilm formation on surfaces have been ongoing problems in real life as well as in the medical field. Different approaches have been taken to tackle the issues, from costly surface modification to antibiotic-delivering strategies. In this study, we examined the potential of using stabilized microbubbles (MBs) to shield against bacterial adhesion. Three types of surfaces were tested: hydrophilic glass (hydrophilic surface), neutral hydrophobic polystyrene (PS)-coated surfaces, and negatively charged hydrophobic octadecyltrichlorosilane (OTS)-coated surfaces. By evaluating the colony-forming unit (CFU) values from each surface, MBs stabilized by 0.05 mM SDS were shown to only produce significant reduction of Staphylococcus aureus adhesion on PS surfaces, up to 60.29 and 82.32% compared to no-MB PS surfaces, and no-MB uncoated surfaces, correspondingly, due to the appropriate size, stability, and negative charges of the MB shielding layer. On the other hand, OTS coatings had an intrinsic antiadhesion effect (69.83% compared to uncoated surface), given that the negatively charged OTS-aqueous interface or surface porosity nature of the coating prohibited the attachment of MBs, leading to the elimination of the antifouling effect of MBs. Ultimately, MBs gave better shielding results than surface modification when compared to uncoated surfaces and hence can be applied more widely.
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