Changmo Hwang

Hydrogel fabrication : Alginate, Agarose, Fibrin, PEG, HA-MA, Gelatin, Collagen

Fiber generation with microfluidic chip

Primary culture of neural cells : rat

Primary culture of cardiomyocytes

Microfluidic gradient generation & application to cell migration

PDMS work

Immunocytochemistry

SEM & Confocal microscope

Project Pages: (Help)

1) PEGDA based soft lithography

2) Ice patterning of cell-laden hydrogels

3) Cell printing : Liver tissue engineering with branched microvascular structure

4) Cardiac tissue regeneration with fiber template

5) Liver tissue engineering with cell laden porous gel

6) [Closed] Microengneered microvascular network for 3D tissue construction

7) [Finished] Grant : Microengineered 3D liver tissue engineering and drug screening

*** Lab ordering ***

changmo@gmail.com

Research Interests:

Microengineered tissue engineering

Tissue engineering in porous hydrogel

Cardiomyocyte based heart tissue regeneration

Experience & Skills:

Meeting Summary (Help)

Meeting Date: Jan. 06, 2009

Summary:

Liver TE: Finished controlling gelatin microbeads, microsphere size between 150-300 micron

3D microstructure of HA-IPN (Onur project): Synthesize HA, preparing materials

Cardiac cell fiber: tried with cardiomyocytes(CM) incorporation in alginate microfiber, cells did not spread in the gel

Culture CM and 3T3 in fibrin gel, CM do not spread, 3T3 spread : CM needs stiff gel matrix, ref 2005 Science 10kPa=> Gelatin crosslinking (Dr. Hojae)

Action Plan:

Liver TE : Ca++ ion incorporation in the microspheres to make alginate homogeneous gelation

Preliminary study with porous cell laden gel and albumin assay

3D Microfabrication(Onur) : Cell compatibility evaluation of cells \

Cardiac TE : Cell culture on different stiffness gelatin gels

Progress on issues from last meeting:

Meeting Date: October 28 2008

Summary: Changmo - staining cells for viability current method does not work well. Artifact of cell viability. Problems with diffusion of dyes ? Review literature.

Gelling alginate/agarose

Action Plan:Paper outline

Meeting Date - October 19 2009

Summary - Structure talk introduction, background etc.

Liver tissue engineering. Ice patterning. How does this differ from other work ? Advantages ? Disadvantages ? Practicality ?

Define issues, problems that people have not yet solved what is the impact ?