Abstract
We introduce an integrated microfluidic device consisting of a biomolecule concentrator, picoinjector and a micro droplet generator. We used this platform to detect ultra-low levels of matrix metalloproteinases (MMPs) from diluted cellular supernatant and showed that it significantly (∼10-fold) reduced the time required to complete the assay and the sample volume used. Biomolecule concentrator enhances the limited sensitivity of low-abundance enzyme assays by concentrating sample solutions, while droplet generator confines concentrated reactants into a pico-liter volume for sustained high sensitivity enzyme reaction as well as enabling multiplexed assays with a limited sample volume. We demonstrated to screen five different protease sensors simultaneously to indicate specific protease MMP-9 with high sensitivity.
Original language | English |
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Title of host publication | The15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011 |
Editors | James P. Landers, David Juncker, Joan Bienvenue, Amy Herr, Nicole Pamme |
Pages | 2080-2082 |
ISBN (Electronic) | 9780979806445 |
Publication status | Published - Oct 2011 |
Externally published | Yes |
Event | 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011 - Washington State Convention Center, Seattle, United States Duration: 2 Oct 2011 → 6 Oct 2011 https://microtasconferences.org/microtas2011/ https://archive.cbmsociety.org/utas/uTAS2011.zip |
Publication series
Name | International Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS |
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ISSN (Electronic) | 1556-5904 |
Conference
Conference | 15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011 |
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Country/Territory | United States |
City | Seattle |
Period | 2/10/11 → 6/10/11 |
Internet address |
Research Keywords
- Biomolecule concentrator
- Emulsions
- Multiplexed activity bioassay
- Protease