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연구 발표

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by

HUICHEOL JEONG

on 25 July 2014

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Transcript of 연구 발표

Made by
Hui-Cheol Jeong

Photo Resist
Wafer
Photo lithography
UV
Glass
PDMS
few reagents necessary
easy temperature and pressure control
high surface area to volume ratio
easily portable
Advantage
1. Develop basic modules for microfluid
2. Technical development for biomas process
in microfluidic chip
3. Integrated biomass process chip
safety for researchers
fast heat and mass transfer
overcome weaknesses
a variety of applications
Weakness
Solvent resistance
High temperature & pressure resistance
Solvent resistance
1. PVSZ(polyvinylsilazane) Coating
2. PFPE(perfluoropolyether) Chip
3. PI(polyimide) chip
1.PVSZ(polyvinylsilazane) Coating
Before
2. PFPE(perfluoropolyether) Chip
A Variety of Applications
Droplets generation
Valve
Reactor
Mixer
Separator
...
Droplets generation
source from http://bme.sunysb.edu/people/faculty/e_brouzes.html
Valve chip
Hydrophilic polymer
Hydrophobic polymer
Hydrophilic polymer
Hydrophobic polymer
Water
Gas
Ideal counter flow
Gas-Liquid Microreactor
aerobic cultivation
fermentation
microchemical process
counter flow → high efficiency
Master
ON
OFF
AZ master
SU-8 master
Water
Hexadecane
Ideal counter flow
Air is compressible
Design of channel
Hexadecane
Air
Source from "Hydrophilic PDMS microchannels for high-throughput formation of oil-in-water microdroplets and water-in-oil-in-water double emulsions"
Aqueous-Gas reactor → LbL deposition
PMMA
(hydrophobic)
Hydrophilic PDMS
Gas phase
Aqueous phase
PMMA PDMS CHIP
After
Full transcript