Collagen-Based Thiol-Norbornene Photoclick Bio-Ink with Excellent Bioactivity and Printability
Guo K(郭凯)1,2; Wang HR(王赫然)1,2,3; Li SJ(李世杰)1,2; Zhang H(张晖)1,2,3; Li S(李松)1,2; Zhu HX(朱慧轩)1,2,3; Yang ZD(杨臻达)1,2; Zhang LM(张黎明)1,2; Chang P(常鹏)4; Zheng XF(郑雄飞)1,2
刊名ACS Applied Materials and Interfaces
2021
卷号13期号:6页码:7037−7050
关键词bioprinting norbornene-functionalized collagen neutral soluble collagen photo-cross-linkable collagen thiol-ene collagen hydrogels
ISSN号1944-8244
产权排序1
英文摘要

As the essential foundation of bioprinting technology, cell-laden bio-ink is confronted with the inevitable contradiction between printability and bioactivity. For example, type I collagen has been widely applied for its excellent biocompatibility; however, its relatively low self-assembly speed restricts the performance in high-precision bioprinting of cell-laden structures. In this study, we synthesize norbornene-functionalized neutral soluble collagen (NorCol) by the reaction of acid-soluble collagen (Col) and carbic anhydride in the aqueous phase. NorCol retains collagen triple-helical conformation and can be quickly orthogonally cross-linked to build a cell-laden hydrogel via a cell-friendly thiol-ene photoclick reaction. Moreover, the additional carboxyl groups produced in the reaction of carbic anhydride and collagen obviously improve the solubility of NorCol in neutral buffer and miscibility of NorCol with other polymers such as alginate and gelatin. It enables hybrid bio-ink to respond to multiple stimuli, resulting in continuous cross-linked NorCol networks in hybrid hydrogels. For the first time, the collagen with a triple helix structure and gelatin can be mixed and printed, keeping the integrity of the printed construct after gelatin's dissolution. The molecular interaction among giant collagen molecules allows NorCol hydrogel formation at a low concentration, which leads to excellent cell spreading, migration, and proliferation. These properties give NorCol flexible formability and excellent biocompatibility in temperature-, ion-, and photo-based bioprinting. We speculate that NorCol is a promising bio-ink for emerging demands in tissue engineering, regenerative medicine, and personalized therapeutics.

资助项目National Key Research and Development Project[2020YFB1313100] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA16020803] ; National Natural Science Foundation of China[51875557] ; Research Equipment Development Program of the Chinese Academy of Sciences[YZ201545] ; Research Equipment Development Program of the Chinese Academy of Sciences[YJKYYQ20170042] ; Research Equipment Development Program of the Chinese Academy of Sciences[YJKYYQ20190045] ; National High Technology Research and Development Program of China (863 Program)[2015AA020312] ; National Key Research and Development Program of China[2017YFC1104900] ; Foundation of State Key Laboratory of Robotics[2017-Z16]
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000621051200004
资助机构National Key Research and Development Project under grant 2020YFB1313100, ; Strategic Priority Research Program of the Chinese Academy of Sciences (XDA16020803) ; National Natural Science Foundation of China (51875557) ; Research Equipment Development Program of the Chinese Academy of Sciences (YZ201545, YJKYYQ20170042, and YJKYYQ20190045) ; National High Technology Research and Development Program of China (863 Program 2015AA020312) ; National Key Research and Development Program of China (2017YFC1104900) ; Foundation of State Key Laboratory of Robotics (2017-Z16)
内容类型期刊论文
源URL[http://ir.sia.cn/handle/173321/28338]  
专题沈阳自动化研究所_机器人学研究室
通讯作者Zheng XF(郑雄飞)
作者单位1.State Key Laboratory of Robotics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.Institutes for Robotics and Intelligent Manufacturing, Chinese Academy of Sciences, Shenyang 110169, China
3.University of Chinese Academy of Sciences, Beijing 100049, China
4.Department of Plastic and Reconstructive Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
推荐引用方式
GB/T 7714
Guo K,Wang HR,Li SJ,et al. Collagen-Based Thiol-Norbornene Photoclick Bio-Ink with Excellent Bioactivity and Printability[J]. ACS Applied Materials and Interfaces,2021,13(6):7037−7050.
APA Guo K.,Wang HR.,Li SJ.,Zhang H.,Li S.,...&Zheng XF.(2021).Collagen-Based Thiol-Norbornene Photoclick Bio-Ink with Excellent Bioactivity and Printability.ACS Applied Materials and Interfaces,13(6),7037−7050.
MLA Guo K,et al."Collagen-Based Thiol-Norbornene Photoclick Bio-Ink with Excellent Bioactivity and Printability".ACS Applied Materials and Interfaces 13.6(2021):7037−7050.
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