한국정밀공학회지. 2019  36(4): 425-429     http://doi.org/10.7736/KSPE.2019.36.4.425
ⓒ Journal of the Korean Society for Precision Engineering
빛의 자가집속 광중합을 이용한 고분해능, 고종횡비 마이크로 기둥 구조를 가진 연성 인공축삭돌기 3D 프린팅
1 매사추세츠 공과대학교 기계공학과
One-Step 3D Microfabrication of High-Resolution, High-Aspect-Ratio Micropillar Arrays for Soft Artificial Axons by Using Light-Induced Self-Focusing Photopolymerization
Seok Kim1
1 Department of Mechanical Engineering, Massachusetts Institute of Technology

Micro-/nano-scale biological ‘soft’ structures have attracted increasing interest in biomedical research, including the study of cell-material interactions. However, most materials of micro-/nano-fabrication are not suitable for biological applications, as they require extensive post-processing or exhibit high mechanical stiffness. On the other hand, soft materials exhibiting high cytocompatibility require long fabrication times with a decreased spatial resolution of features. Thus, a facile fabrication technique of micro-/nano-scale structures of biological soft materials using a cost-effective and high-throughput method is needed. To achieve this, this study proposed a one-step 3D microfabrication method for biological soft materials in cooperation with a light-induced self-focusing photo-polymerization, a controlled oxygen reaction-diffusion, and digital microprinting. For instance, it was anticipated that this microfabrication technique of soft material provides efficient simple 3D scaffold platform that can address the questions of neural mechanobiology studies on the interaction between biological artificial axons bundle and neurons.
Key words : 3D printing (3D 프린팅), Additive manufacturing (적층 가공), Self-propagated photopolymerization (자기전파 광중합), Artificial axons (인공축색돌기)
중심단어 : 
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