Analytical Chemistry - Biointerfaces, Ruhr University Bochum, Bochum, Germany.
Center for Corrosion and Biofouling Control, Florida Institute of Technology, Melbourne, FL, USA.
Biofouling. 2022 Feb;38(2):119-130. doi: 10.1080/08927014.2022.2027923. Epub 2022 Mar 4.
The application of electric fields to conductive coatings is an environmentally friendly way to reduce biofilm formation. In particular alternating potentials (APs) have received increasing attention in recent studies. Here, an electrochemical rotating disk setup for dynamic field exposure experiments was developed to study how APs alter the attachment of fouling organisms in a multispecies ocean environment. A specific focus of the device design was proper integration of the potentiostat in the strongly corroding saltwater environment. The effect of APs on the accumulation of fouling organisms in short term field exposures was studied. Potentials on conductive gold surfaces were periodically switched between -0.3 V and 0.3 V or between -0.8 V and 0.6 V at a frequency of 0.5 Hz. APs were capable of significantly reducing the attachment of marine fouling organisms compared with the conductive samples immersed at open circuit potentials.
电场在导电涂层中的应用是一种环保的方法，可以减少生物膜的形成。特别是交流（APs）在最近的研究中受到越来越多的关注。在这里，开发了一种用于动态场暴露实验的电化学旋转圆盘装置，以研究交流如何改变多物种海洋环境中污垢生物的附着。该装置设计的一个特别重点是在腐蚀性很强的盐水环境中正确集成电势计。研究了交流对短期现场暴露中污垢生物积累的影响。在频率为 0.5 Hz 的情况下，导电金表面的电势在-0.3 V 和 0.3 V 或-0.8 V 和 0.6 V 之间周期性切换。与在开路电位下浸泡的导电样品相比，交流能够显著减少海洋污垢生物的附着。
