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Microfluidic device-assisted etching of p-HEMA for cell or protein patterning
Frank H Kung1, David Sillitti2, David I Shreiber2,3
1Dept. of Cell Biology and Neuroscience, Rutgers University, 604 Allison Road, Piscataway, NJ, 08854.
Biotechnology Progress
|November 1, 2017
Summary
Researchers developed a simple method using poly (2-hydroxyethyl methacrylate) (p-HEMA) and microfluidic devices to create patterned surfaces. This technique controls protein and cell adhesion for advanced biomaterial applications.
Area of Science:
- Biomaterials Science
- Surface Chemistry
- Cell Biology
Background:
- Controlling protein adsorption and cell growth on biomaterials is crucial for biological studies.
- Existing methods for creating patterned surfaces can be complex and time-consuming.
Purpose of the Study:
- To develop a simple and versatile method for creating patterned poly (2-hydroxyethyl methacrylate) (p-HEMA) surfaces.
- To enable precise control over protein and cell adhesion for biological applications.
Main Methods:
- Coating surfaces with p-HEMA.
- Utilizing polydimethylsiloxane (PDMS) microfluidic devices for ethanol-based etching.
- Fabricating thin p-HEMA layers and channels for differential adhesion.
Main Results:
- Successfully created 0.3 µm thin p-HEMA layers patterned into 10 µm wide channels.
- Demonstrated differential protein adhesion using staining and fluorescent labeling.
- Showcased controlled C2C12 myoblast cell adhesion and growth on patterned surfaces.
Conclusions:
- The developed method offers a simple, versatile approach to fabricating patterned biomaterial surfaces.
- This technique facilitates the manipulation of cell culture adhesion and growth regions.
- Enables advancements in biomaterials for cell culture and bioengineering research.
