caa a22 4500 463235274 CHVBK 20180405153254.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10404-006-0146-z doi (NATIONALLICENCE)springer-10.1007/s10404-006-0146-z Electrokinetically driven flow control using bare electrodes [Elektronische Daten] [Chien-Hsien Wu, Jia-Kun Chen, Ruey-Jen Yang] This paper presents a novel technique for manipulating fluid flows within microchannels using bare electrodes. The electrodes, with a width of 100μm, are fabricated using conventional photolithography techniques by etching the bulk flow channel into a glass substrate and then depositing Pt/Cr thin films within this channel. The application of an external voltage to these electrodes produces localized variations in the electrical potential distribution, which in turn induce changes in the velocity and direction of the flow within the microchannel. The effectiveness of the proposed control technique is investigated numerically using computational fluid dynamics simulations and experimentally using a fabricated microchip containing multiple bare electrode-pairs. The results demonstrate that the application of appropriate driving voltages to the bare electrode-pairs enables the microdevice to function as a nozzle, a diffuser, a mixer or a valveless valve. Springer-Verlag, 2007 Microfluidics nationallicence Zeta potential nationallicence Electroosmotic flow nationallicence Wu Chien-Hsien Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut Chen Jia-Kun Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut Yang Ruey-Jen Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut Microfluidics and Nanofluidics Springer-Verlag 3/4(2007-08-01), 485-494 1613-4982 3:4<485 2007 3 10404 https://doi.org/10.1007/s10404-006-0146-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10404-006-0146-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Chien-Hsien Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut NATIONALLICENCE 700 1- Chen Jia-Kun Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut NATIONALLICENCE 700 1- Yang Ruey-Jen Department of Engineering Science, National Cheng Kung University, 70101, Tainan, Taiwan aut NATIONALLICENCE 773 0- Microfluidics and Nanofluidics Springer-Verlag 3/4(2007-08-01), 485-494 1613-4982 3:4<485 2007 3 10404 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer