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动态凝水凝通过迪提亚-诺波伦交联点击化学

Favour O Afolabi¹, Lydia Yang He¹, Chien-Chi Lin¹

¹Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA.

Macromolecular bioscience

|February 4, 2026

概括

本研究介绍了用于3D细胞培养的基于凝的动态水凝 (GelNB/PEG4LA). 这些细胞相容材料通过暴露于光线允许调节性刚性,从而使人体诱导多能干细胞 (hiPSC) 应用成为可能.

科学领域:

生物材料科学生物材料科学
组织工程是组织工程.
干细胞生物学干细胞生物学

背景情况:

凝水凝模仿细胞外基质 (ECM),但缺乏用于3D细胞培养的热稳定性.
像凝-甲基 (GelMA) 和凝-诺伯 (GelNB) 这样的改性凝可以实现稳定的光聚合.
现有的凝水凝往往缺乏动态调节的特性.

研究的目的:

开发动态调节和细胞兼容的基于凝的水凝.
为了使先进的细胞培养应用能够在现场对水凝特性进行操纵.
为人类诱导多能干细胞 (hiPSC) 封装,培养和分化创建一个平台.

主要方法:

凝结GelNB与含有迪西奥兰的交叉链接剂,聚乙烯甘醇-四酸 (PEG4LA) 的整合.
在细胞相容的光条件下 (365 nm,5 mW/cm2,1 mM LAP) 进行GelNB/PEG4LA水凝的模块化光交联.
通过二次光诱导的dithiolane环开放来动态调整水凝的刚度.

主要成果:

在温和的光聚合条件下成功形成稳定的GelNB/PEG4LA水凝.
通过二次光照暴露,证明了水凝刚性的动态调整性.
验证了细胞兼容性和适合hiPSC封装,培养和分化.

结论:

凝NB/PEG4LA水凝为3D细胞培养提供了一个可调和细胞兼容的平台.
开发的水凝适用于包括干细胞操纵在内的先进应用.
这项工作促进了再生医学智能生物材料的开发.

关键词:

3D/4D细胞培养的3D/4D细胞培养这些是dithiolanes.动态水凝是一种动态的水凝.凝 - 诺尔博内纳诱导多能干细胞的诱导干细胞.脂酸脂肪酸是什么脂酸脂肪酸是什么

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