ENHANCING/MULTIPLEXING PROTEASE ASSAY WITH DROPLET BASED MICROFLUIDICS USING BIOMOLECULE CONCENTRATOR

Chia Hung Chen, Aniruddh Sarkar, Yong-Ak Song, Miles A. Miller, Sung Jae Kim, Linda G. Griffith, Douglas A. Lauffenburger, Jongyoon Han*

*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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 languageEnglish
Title of host publicationThe15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011
EditorsJames P. Landers, David Juncker, Joan Bienvenue, Amy Herr, Nicole Pamme
Pages2080-2082
ISBN (Electronic)9780979806445
Publication statusPublished - Oct 2011
Externally publishedYes
Event15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011 - Washington State Convention Center, Seattle, United States
Duration: 2 Oct 20116 Oct 2011
https://microtasconferences.org/microtas2011/
https://archive.cbmsociety.org/utas/uTAS2011.zip

Publication series

NameInternational Conference on Miniaturized Systems for Chemistry and Life Sciences, MicroTAS
ISSN (Electronic)1556-5904

Conference

Conference15th International Conference on Miniaturized Systems for Chemistry and Life Sciences 2011, µTAS 2011
Country/TerritoryUnited States
CitySeattle
Period2/10/116/10/11
Internet address

Research Keywords

  • Biomolecule concentrator
  • Emulsions
  • Multiplexed activity bioassay
  • Protease

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