|About this Abstract
||Materials Science & Technology 2017
||Processing and Performance of Materials Using Microwaves, Electric and Magnetic Fields, Ultrasound, Lasers, and Mechanical Work – Rustum Roy Symposium
||Effects of Elastic Waves at Several Frequencies on Biofilm Formation in Circulating Laboratory Biofilm Reactors
||Hideyuki Kanematsu, Shogo Maeda, Senshin Umeki, Kazuyuki Tohji , Nobumitsu Hirai, Akiko Ogawa, Takeshi Kougo
|On-Site Speaker (Planned)
Bacterial generally form biofilms on materials surfaces. They bring us various negative effects and therefore need to be suppressed. The final purpose of this study is to suppress the formation of biofilm, and we focused on the correlation between applied elastic waves (ultrasonic and audio ones) and biofilm formation in a circulation type laboratory biofilm reactor (LBR). Several metallic specimens were inserted into the LBR and the elastic waves were applied in a certain period. Then specimens were taken out of the system and the surfaces were observed by an optical microscope and staining. In both cases of ultrasonic and audio waves, biofilm could be suppressed. However, the ultrasonic case was more remarkable than the audio one. The mechanism to suppress biofilms was different and unique for each case.