Electrochemical prevention of biofouling

Microbial biofilms are implicated with industrial fouling, corrosion, and h ygiene problems. Here, we outline electrochemical control of microbial biof ilm accumulation on marine infrastructures preventing biofouling without ge nerating toxic substances. Marine bacteria were killed electrochemically by applying a potential of 1.2 V using conductive paint and TiN film electrod e. Most of the cells on the electrode were desorbed within 30 min by applyi ng 0.6 V vs. Ag/AgCl. Prevention of bacterial cell accumulation can be perf ormed by applying alternating potentials. Electrochemical control of bacter ial cell accumulation on the electrode was achieved by applying an alternat ing potential of 1.2 and - 0.6 V vs. Ag/AgCl. This method does not result i n generation of chlorine or change pH. Electrochemical control of bacterial cell accumulation on electrodes will be applicable not only for seawater a pplications but also for fresh water systems. This disinfection system may also be used in food and medical process.