Abstract
An integrated microfluidic chip to handle liquid plugs of the nL order was fabricated. The chip consisted of a T-junction, shape memory alloy (SMA) micro plumps, and an electrochemical sensor. The weight of the chip including all the components was only 1.5 g. The device was operated by a computer control system connected to the chip. Driving voltage was less than 5 V. In the detection of an analyte using this chip, the volume of a sample solution was precisely measured at the T-junction, which was then separated into a liquid plug. The plug was subsequently transported to the electrochemical sensor. As a demonstration, the concentration of hydrogen peroxide was measured by coulometry. The measured charge was clearly dependent on the concentration of hydrogen peroxide.
Original language | English |
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Title of host publication | 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 |
Pages | 2287-2290 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 2011 |
Externally published | Yes |
Event | 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 - Beijing, China Duration: Jun 5 2011 → Jun 9 2011 |
Other
Other | 2011 16th International Solid-State Sensors, Actuators and Microsystems Conference, TRANSDUCERS'11 |
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Country/Territory | China |
City | Beijing |
Period | 6/5/11 → 6/9/11 |
All Science Journal Classification (ASJC) codes
- Hardware and Architecture
- Electrical and Electronic Engineering