Biofilm formation controlled by quartz crystal nanobalance

Chemicals of systematically changed structure were synthesized in order to reduce the activity of aerobic and/or anaerobic bacteria, to inhibit the exopolymer, mainly exopolysaccharide secretion and the metal corrosion, at the same time. The efficiency was parallel monitored by different techniques as microbiological and gravimetric methods. As traditional measuring techniques can only characterize a relatively thick biofilm a new application of quartz crystal nanobalance became an extremely sensitive device to monitor the biofilm formation in the early period and the influence of different biocides on the film formation. Environmentally acceptable chemicals of two different efficiencies i.e. molecules with combined, anticorrosion and biofilm-formation-inhibiting activity were found.