Journal
MACROMOLECULAR CHEMISTRY AND PHYSICS
Volume 220, Issue 12, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/macp.201800498
Keywords
gelation; hydrogels; modulus; photopolymerization; processing
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Funding
- national project Center of Innovation (COI) from the Japan Science and Technology Agency (JST)
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) in Japan
- Regional Open Innovation Promotion Project from the Ministry of Economy in Japan
- Strategic Innovation Creation Project (SIP) from the New Energy and Industrial Technology Development Organization (NEDO) of Japan
- Program of Open Innovation Platform with Enterprises, Research Institute and Academia (OPERA) from the JST
- MEXT
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A gel forming method with sections with different elastic modulus is developed. Gels with hardness distribution are formed from one base gel material by adjusting the crosslinking density of the polymer network using a 3D gel printer. It is confirmed that hardness is arranged as designed by using mixing rules of composite materials. Furthermore, as a prototype of a practical gel application, a gel finger model having a soft-fleshy part and a hard-bony part is printed. 3D printing of an organ model that reproduces a realistic feel that takes not only the shape of the organ but also the distribution of hardness into consideration may become possible.
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