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SELECTBIO Conferences Microfluidics and Lab on a Chip India

Chang-Hwan Choi's Biography



Chang-Hwan Choi, Associate Professor, Stevens Institute of Technology

Dr. Chang-Hwan Choi is currently working as an Associate Professor in the Department of Mechanical Engineering at the Stevens Institute of Technology. He acquired his BS (1995) and MS (1997) in Mechanical & Aerospace Engineering from Seoul National University in Korea. He also earned his MS in Fluids, Thermal, and Chemical Processes from Brown University in 2002. Dr. Choi received his PhD in Mechanical Engineering from the University of California at Los Angeles (UCLA) in 2006, specializing in MEMS/Nanotechnology and minoring in Fluid Mechanics and Biomedical Engineering. He has two-year (1996, 2000) work experience at Korea Aerospace Research Institute and three-year (1997-1999) teaching experience at Chandrakasem Rajabhat University in Thailand. His current research activities include large-area nanopatterning and 3D nanofabrication, fluid physics and heat transfer at micro/nano-scale interfaces, microfluidic self-assembly of nanomaterials, nanofluidic energy harvesting, and cell-material interactions, funded by various federal agencies in US (NSF, DARPA, ONR, ARMY, and DOE) and industries. He has recently been named as a recipient of the 2010 Young Investigator Program (YIP) award by the US Office of Naval Research (ONR) and highlighted in Nature (http://www.nature.com/naturejobs/2010/100520/pdf/nj7296-385a.pdf).

Chang-Hwan Choi Image

Superhydrophobic Surfaces for Microfluidics and Lab-on-a-Chip Applications

Thursday, 22 January 2015 at 09:00

Add to Calendar ▼2015-01-22 15:15:002015-01-22 16:15:00Europe/LondonUltra-Low-Voltage Manipulation of Microdroplets using Electrochemical Redox Process of Smart Polymers Microfluidics and Lab on a Chip India in MumbaiMumbaiSELECTBIOenquiries@selectbiosciences.com

In this talk, several applications of superhydrophobic surfaces in microfluidics and lab-on-a-chip systems will be presented, including 1) hydrodynamic friction reduction in droplet movement and continuous channel flows, and 2) evaporation of droplets and their dryout patterns on superhydrophobic surfaces. Design issues and fabrication methods for effective superhydrophobic surfaces for the applications will also be addressed.

Ultra-Low-Voltage Manipulation of Microdroplets using Electrochemical Redox Process of Smart Polymers

Thursday, 22 January 2015 at 15:15

Add to Calendar ▼2015-01-22 15:15:002015-01-22 16:15:00Europe/LondonUltra-Low-Voltage Manipulation of Microdroplets using Electrochemical Redox Process of Smart Polymers Microfluidics and Lab on a Chip India in MumbaiMumbaiSELECTBIOenquiries@selectbiosciences.com

In this talk, the tunable wetting and adhesion properties of the dodecylbenzenesulfonate-doped polypyrrole (PPy(DBS)) polymer will first be presented for ultra-low-voltage (<1V) microdroplet manipulation based on electrochemical redox process. Utilizing the tunable wetting property, a lateral transportation of an organic microdroplet from one PPy(DBS) electrode to another in aqueous solution will then be demonstrated. A vertical capture-release process of an organic microdroplet by utilizing the tunable adhesion of PPy(DBS) surface will also be described.


Add to Calendar ▼2015-01-22 00:00:002015-01-23 00:00:00Europe/LondonMicrofluidics and Lab on a Chip IndiaMicrofluidics and Lab on a Chip India in MumbaiMumbaiSELECTBIOenquiries@selectbiosciences.com