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Sensors 2014, 14(1), 944-956; doi:10.3390/s140100944

A Universal Spring-Probe System for Reliable Probing of Electrochemical Lab-on-a-Chip Devices

1
Center for Nanobio Integration & Convergence Engineering, National Nanofab Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-806, Korea
2
National Fisheries Research and Development Institute, 216 Haean-ro, Gijang-up, Gijang-gun, Busan 619-705, Korea
*
Author to whom correspondence should be addressed.
Received: 20 November 2013 / Revised: 19 December 2013 / Accepted: 2 January 2014 / Published: 8 January 2014
(This article belongs to the Section Biosensors)
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Abstract

For achieve sensitivity in lab-on-a-chip electrochemical detection, more reliable probing methods are required, especially for repeated measurements. Spring-probes are a promising candidate method which can replace needle-like probes and alligator clips that usually produce scratches on the surface of gold electrodes due to the strong physical contacts needed for electrochemical measurements. The superior reliability of amperometric measurements by a spring-probe system was compared with results by conventional probing methods. We demonstrated that a universal spring-probe system would be potentially suitable to achieve high performance in lab-on-a-chip devices using electrochemical detection.
Keywords: spring-probe; reliability; probing system; electrochemical measurement; lab-on-a-chip spring-probe; reliability; probing system; electrochemical measurement; lab-on-a-chip
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Lee, M.-K.; Lee, T.J.; Choi, H.W.; Shin, S.J.; Park, J.Y.; Lee, S.J. A Universal Spring-Probe System for Reliable Probing of Electrochemical Lab-on-a-Chip Devices. Sensors 2014, 14, 944-956.

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