Characterization of AC electrokinetic effects using pressure-driven flows: a contribution toward the development of lab-on-a-chip applications

2021 ◽  
Author(s):  
Jorge Jonathan Capurro
2019 ◽  
Vol 1 (5) ◽  
pp. 306-315 ◽  
Author(s):  
V. M. Sedelkin ◽  
L. N. Potehina ◽  
O. A. Lebedeva ◽  
M. G. Schneider ◽  
E. R. Ulyanova

2017 ◽  
Vol 80 (10) ◽  
pp. 1295-1308 ◽  
Author(s):  
Volha Matylitskaya ◽  
S Kasemann ◽  
G Urban ◽  
C Dincer ◽  
Stefan Partel

2006 ◽  
Vol 510-511 ◽  
pp. 1090-1093
Author(s):  
Kyung-Ah Yoo ◽  
Kwang Ho Na ◽  
Seung-Ryong Joung ◽  
D. Jeon ◽  
Y.J. Choi ◽  
...  

We propose an electrical detection method for detecting the various bio-molecules effectively with microcantilevers. The piezoresistive microcantilevers were fabricated employing surface micromachining technique that has attractive advantages in terms of cost efficiency, simplicity, and ability of fabricating in array. The fluid cell system for injection of bio-molecular solution is fabricated using polydimethylsiloxane (PDMS) and a fused silica glass. The microcantilever is deflected with respect to the difference of the surface stress caused by the formation of self-assembled bio-molecules on the gold coated side of the microcantilever. We confirmed that the deflections occurred by the bio-molecule adsorption and microcantilever can be widely used to a &-TAS and a lab-on-a-chip as a sensor for the potential detection of various biomolecules.


2013 ◽  
Vol 65 (11-12) ◽  
pp. 1403-1419 ◽  
Author(s):  
Nam-Trung Nguyen ◽  
Seyed Ali Mousavi Shaegh ◽  
Navid Kashaninejad ◽  
Dinh-Tuan Phan

Author(s):  
Pengfei Li ◽  
Nan Lei ◽  
Jie Xu ◽  
Wei Xue

Here we report the design, fabrication, and characterization of a lab-on-a-chip device using a nanotube-based sensor array. The microfluidic components are composed of an ultraviolet (UV) light-defined, cross-linked SU-8 microchannel and a polydimethylsiloxane (PDMS) top cover. The hybrid microfluidic structure provides a fully sealed microchannel, well-aligned features, and precisely positioned nanosensors. Well-organized single-walled carbon nanotube (SWNT) thin films are deposited and aligned across the electrodes on a silicon substrate with dielectrophoresis. The assembly of SWNTs is carried out in a sealed microchannel. The SWNT devices are configured as two-terminal resistor-type sensors with the metal electrodes as the probing pads and the dielectrophoretically captured SWNTs as the sensing elements. The SWNT devices are used as integrated flow sensors to monitor the flow rate in the microchannel. In addition, when exposed to aqueous solutions with various pH values, these sensors change their resistance accordingly and demonstrate high sensitivity towards pH solutions.


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