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Published on: October 21, 2013
Microvessel scaffold with circular microchannels by photoresist melting
Gou-Jen Wang1, Kuan-Hsuan Ho, Shan-hui Hsu
1Department of Mechanical Engineering, National Chung Hsing University, Taichung, 402, Taiwan. gjwang@dragon.nchu.edu.tw
Biomedical Microdevices
|May 31, 2007
Summary
This study introduces a novel method for creating microvessel scaffolds using photoresist melting and soft lithography. The developed scaffolds support bovine endothelial cell survival for up to four weeks.
Area of Science:
- Biomaterials Engineering
- Tissue Engineering
- Microfabrication
Background:
- Microvessel scaffolds are crucial for tissue engineering and regenerative medicine.
- Existing fabrication methods face challenges in creating complex microchannel structures.
Purpose of the Study:
- To develop a novel integrated process for fabricating microvessel scaffolds with circular microchannels.
- To optimize scaffold design using COMSOL Multiphysics.
- To evaluate the biocompatibility and cell survival within the fabricated scaffolds.
Main Methods:
- Integration of photoresist melting and soft lithography techniques.
- Photolithographic fabrication of a negative photoresist microstructure (THB-120N).
- Replication of PDMS (polydimethylsiloxane) to create scaffold plates, followed by ICP bonding.
- Culturing of bovine endothelial cells (BECs) within the scaffold.
Main Results:
- Successful fabrication of microvessel scaffolds with circular microchannels.
- Optimization of scaffold structure using COMSOL Multiphysics simulations.
- Demonstrated survival of bovine endothelial cells within the scaffold for up to 4 weeks under semi-dynamic seeding conditions.
Conclusions:
- The integrated photoresist melting and soft lithography process is effective for fabricating microvessel scaffolds.
- The developed scaffolds provide a suitable environment for endothelial cell culture and survival.
- This technique holds promise for applications in tissue engineering and vascularized construct development.
