Wetsus, European Centre of Excellence for Sustainable Water Technology, Leeuwarden, the Netherlands.
Department of Biomedical Engineering, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
Biofouling. 2023 Feb;39(2):121-134. doi: 10.1080/08927014.2023.2190023. Epub 2023 Mar 22.
Biofilm formation and detachment in drinking water distribution systems (DWDS) can lead to several operational issues. Here, an alternative biofilm control strategy of limiting bacterial adhesion by application of a poly(-isopropylmethacrylamide)-based nanogel coating on DWDS pipe walls was investigated. The nanogel coatings were successfully deposited on surfaces of four polymeric pipe materials commonly applied in DWDS construction. Nanogel-coated and non-coated pipe materials were characterized in terms of their surface hydrophilicity and roughness. Four DWDS relevant bacterial strains, representing and , were used to evaluate the anti-adhesive performance of the coating in 4 h adhesion and 24 h biofilm assays. The presence of the nanogel coating resulted in adhesion reduction up to 97%, and biofilm reduction up to 98%, compared to non-coated surfaces. These promising results motivate further investigation of nanogel coatings as a strategy for biofilm prevention in DWDS.
饮用水分配系统（DWDS）中的生物膜形成和脱落会导致一些运行问题。在这里，通过在 DWDS 管道壁上应用基于聚（异丙基甲基丙烯酰胺）的纳米凝胶涂层来限制细菌附着的替代生物膜控制策略进行了研究。纳米凝胶涂层成功地沉积在四种常用于 DWDS 构建的聚合材料的表面上。纳米凝胶涂层和非涂层管材材料的表面亲水性和粗糙度进行了表征。使用四种与 DWDS 相关的细菌菌株，代表 和 ，在 4 小时附着和 24 小时生物膜测定中评估了涂层的抗粘附性能。与非涂层表面相比，纳米凝胶涂层的存在使粘附减少了高达 97%，生物膜减少了高达 98%。这些有希望的结果促使进一步研究纳米凝胶涂层作为 DWDS 中生物膜预防的策略。
