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Engineering
使用 κ-角叉菜胶亚微凝胶培养基对组织样结构进行嵌入式生物打印
使用 κ-角叉菜胶亚微凝胶培养基对组织样结构进行嵌入式生物打印
JoVE Journal
Engineering
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JoVE Journal Engineering
Embedded Bioprinting of Tissue-like Structures Using κ-Carrageenan Sub-Microgel Medium

使用 κ-角叉菜胶亚微凝胶培养基对组织样结构进行嵌入式生物打印

Full Text
1,520 Views
04:58 min
May 3, 2024

DOI: 10.3791/66806-v

Hua Zhang*1,2,3, Tong Zhu*1,2,4, Yang Luo1,2, Rong Xu1,2,4, Guanrong Li1,2,4, Zeming Hu2, Xu Cao1,2,4, Jie Yao3,4, Yige Chen1,2, Yingchun Zhu4, Kerong Wu3,4

1Research Institute of Smart Medicine and Biological Engineering,Ningbo University, 2Health Science Center,Ningbo University, 3Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province,The First Affiliated Hospital of Ningbo University, 4The First Affiliated Hospital of Ningbo University

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Summary

本研究介绍了一种新型 κ-角叉菜胶亚微凝胶悬浮浴,显示出显着的可逆干扰-非干扰过渡特性。这些属性有助于在嵌入式 3D 生物打印中构建仿生组织和器官。成功打印具有高分辨率和细胞生长的心脏/食管样组织,展示了高质量的生物打印和组织工程应用。

Transcript

基于微凝胶的悬浮浴中的 3D 生物打印为使用软水凝胶制造复杂的 3D 结构提供了一个多功能平台,但它仍然受到低打印分辨率和准确性的限制,阻碍了打印产品在组织工程中的实际应用。目前的微凝胶浴通常表现出大尺寸和较差的分散性,导致打印细丝的直径大和形态不规则。因此,制备小粒径和均匀形态的微凝胶浴带来了重大挑战。

该方案通过易于操作的机械研磨策略,为高保真生物打印制造了均匀且生物相容的阳离子交联 kappa-卡拉胶亚微凝胶浴,由于 kappa-卡拉胶亚微凝胶表现出统一的方法,具有 565 纳米的小粒径和 0.35% 的低状态,能够以卓越的保真度和高分辨率实现精确的组织和器官构建。

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