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2019 Fiscal Year Final Research Report

Development and application of novel bio-inks able to use for 3D-molding of biomacromolecules

Research Project

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Project/Area Number 17K05932
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Bio-related chemistry
Research InstitutionNagoya Institute of Technology

Principal Investigator

Mizuno Toshihisa  名古屋工業大学, 工学(系)研究科(研究院), 准教授 (90345950)

Project Period (FY) 2017-04-01 – 2020-03-31
Keywordsバイオインキ / 細胞培養足場 / 増殖因子 / 架橋性高分子 / 細胞接着
Outline of Final Research Achievements

In this research, we focused on the development and novel bio-inks that can include various biomacromolecules without denaturation and mold in 3D structures. Further, we evaluated whether the obtained 3D molded materials, including biomacromolecules, can be used for cell incubation scaffolds or not. As results, we found that the 3D molded fibermats, consisting of nanofibers of polyacrylamide-based bioink for core unit and the crosslinked gelatin for the shell unit, are optimal to use for cell incubation scaffolds. The above 3D molded fibermats, including growth factor proteins, could gradually release growth factor proteins and exhibit clear accelerate of cell growth.

Free Research Field

生体機能関連化学

Academic Significance and Societal Importance of the Research Achievements

生体外で未分化細胞から臓器や組織の再生を行うためには、それに適した3次元構造を持った細胞培養材料の開発が必要とされている。また未分化細胞から目的とする成熟細胞へ分化させつつ、目的の細胞集団(すなわち臓器や組織)へと自己組織化させるためには、細胞成長因子、分化誘導因子などの蛋白質薬剤を効率よく細胞に作用できる薬剤徐放性を備えていることも大事である。本研究では、この蛋白質薬剤徐放性と細胞接着性を兼ね備えた細胞培養材料作成が、蛋白質薬剤を安定に内包可能なポリアクリルアミド系バイオインキと架橋ゼラチンを組み合わせて利用することで可能となることを明らかとした。

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Published: 2021-02-19  

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