| Info. | Vol.9 - No.1 (2015.03.20) |
|---|---|
| Title | Microfabricated, Continuous-flow, Microbial Three-electrode Cell for Potential Toxicity Detection |
| Authors | Yoomin Ahn1,2,* & Uwe Schr�der1 |
| Institutions | 1Institute of Environmental and Sustainable Chemistry, Technische Universit�t Braunschweig, Hagenring 30, 38106 Braunschweig, Germany 2Dept. of Mechanical Engineering, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi-do 426-791, Korea |
| Abstract | Bioelectrochemical microfluidic devices are developed based on the continuous flow mode of membrane-less, microbial three-electrode cells (M3Cs). These novel devices are the miniaturized microfluidic- based three-electrode cells for the first time, and these are composed of an Ag/AgCl reference electrode, indium tin oxide anode and cathode electrodes. The basic performance of the devices is tested using biofilms grown from wastewater inoculum in an experiment that senses for toxic materials. The toxic materials used are: sodium cyanide, imidazole, and sodiumazide in concentrations of 0.02-0.8 mM, with lactate and sodium acetate functioning as substrates. While a constant potential of 0.2 V is applied to the working electrodes of the device, the bioelectrocatalytic oxidation current is monitored at 35C. When the biocides are introduced, the response current from the cell decreases. The sensor can detect imidazole at the range of 0.02-0.4 mM. The experimental results show the potential of using microfluidic-based microbial electrolysis cells not only as biocide sensors, but also as investigative tools for microbial electrochemical assays. |
| Keyword | Electroactive biofilms, Wastewater bacteria, Single-chamber microbial electrolysis cell, Microfluidic device, Biocide sensor |
| PDF File |
 # 2010년도 발행분 부터는 Springer 의 BioChip Journal 페이지에서 전문을 열람하실 수 있습니다.
# 학회회원 로그인 후 [ Springer BioChip Journal 열람하기 ] 버튼을 클릭하시면 새창으로 열립니다. |
