• Diffusion-based bioluminescence in microchannel

    Diffusive mixing of two fluids in a microchannel. Adenosine triphosphate (ATP) was used as a substrate of light producing enzyme, luciferase. It is recommended to inject the relatively lower molecular weight ATP solution in the middle with the two luciferase solutions on both sides for higher diffusive mixing in a long microchannel. 

    DOI: 10.1016/j.cej.2012.01.055

    Posted Jun 26, 2015, 2:05 PM by Woo-Jin Chang
Showing posts 1 - 1 of 6. View more »


Bionanotechnology, Biomedical Engineering, Biochemical Engineering, BioMEMS,  Biosensor, Bioseparations

  • BioMEMS devices and Biosensors development
  • Separation and identification of biomolecules including protein and human cancer and stem cells
  • Wearable diagnostic health monitoring device 
  • Rapid on-site environmental monitoring device


  • Jiang Yang, Tae-Joon Kwak, Xiaodong Zhang, Woo-Jin Chang (co-corresponding author), Sundaram Gunasekaran, Iridium oxide-reduced graphene oxide hybrid thin film modified screen-printed electrode as disposable electrochemical paper microfluidic pH sensor, Journal of Visualized Experiments, in Press, 2015.
  • In Soo Park, Jaewoo Lee, Gyudo Lee, Kiwhan Nam, Taewoo Lee, Woo-Jin Chang, Hansung Kim, Sei-Young Lee, Jongbum Seo, Dae Sung Yoon, Sang Woo Lee, Real-time analysis of biological properties in live cells within a microfluidic dielectrophoresis device, Anan. Chem., published online, 2015.

Recent News

  • Summer goes on with undergraduate students Maria, Madison, Wookkun, Bibek will participate research during summer.  Good luck. 
    Posted Jun 1, 2015, 9:03 PM by Woo-Jin Chang
  • Corral trap team won 3rd place graduate award Corral trap team won 3rd Place Graduate Award in IEEE Larry Hause Student Poster Competition during IEEE USA Annual Meeting 2015 & 36th Great Lakes Biomedical Conference, May 14-17, 2015 ...
    Posted May 20, 2015, 10:58 AM by Woo-Jin Chang
  • Dr. Chang moderated Special Session in 7th World Water Forum Dr. Chang moderated a special session entitled "High Level Conference on Global Water Industry Development through a New Innovative Private-Public-Partnership Cluster" on April 14th, as a part of ...
    Posted May 1, 2015, 7:51 PM by Woo-Jin Chang
  • Derek and Sam presented UWM research competition and CEAS poster competition Derek (title: Fabrication of a treated pH sensor for field testing) and Sam (title: Microfluidic mixing on microstructured leaf surfaces) presented results during UWM research competition on April 24, and ...
    Posted Apr 26, 2015, 12:09 PM by Woo-Jin Chang
  • Dr. Chang received Technology Licensing Award Dr. Chang Received Technology Licensing Award from UWM Research Foundation by licensing filed provisional patent on pH and heavy metal sensing on March 5, 2015.
    Posted Mar 14, 2015, 1:31 PM by Woo-Jin Chang
Showing posts 1 - 5 of 26. View more »