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生物模拟水凝支架具有可编程的异型形态和导电性,用于心肌细胞的定向和成熟

Jian Geng¹, Ziyu Zhang¹, TianLi Yang²

¹State Key Laboratory of Digital Medical Engineering, Institute of Microphysiologial System, School of Biological Science and Medical Engineering, Southeast University, Nanjing, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 21, 2026

概括

研究人员开发了生物模拟水凝支架,使用二电泳模拟复杂的心脏组织结构. 这种心脏组织工程的进步精确地控制心肌细胞的方向和成熟,以改善心脏的修复.

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.
心血管研究研究心血管研究

背景情况:

心脏组织工程需要模仿心脏复杂的异构结构和电气性能的支架.
现有的异构型策略往往无法复制不同心脏区域中发现的多样化的肌纤维取向.
精确控制心肌细胞对齐和成熟仍然是开发功能性心脏组织的一个重大挑战.

研究的目的:

开发具有可编程异构形态和导电性的仿生水凝支架.
精确模拟心脏组织内特定区域的肌纤维方向.
增强心肌细胞的定向和成熟,以改善心脏功能.

主要方法:

利用电极形态调节的电介电泳方法控制碳纳米管 (CNT) 在聚烯酸 (PIC) 水凝矩阵中的对齐.
设计了多种不同的电极配置 (矩形,三角形,混合) 来实现特定的异构型图案:平面,弧形和辐射.
制造的水凝支架模仿心脏中心,外围和顶部的肌纤维束方向.

主要成果:

在水凝支架中实现可编程的异构形态和电导率,纵向导率明显高于横向导率.
证明了CNT对齐的精确调节,导致与心脏组织结构相对应的明显的平面,弧形和辐射异质性.
展示了改善心肌细胞对齐和成熟的异性质支架,促进单向电信号传播.

结论:

电极形态调节的电介电泳方法提供了一个可扩展和可控制的平台,用于创建可编程的异构型水凝.
这些仿生支架有效地模拟特定区域的心脏组织结构和电气特性.
这一战略代表了心脏组织工程和再生医学应用的重大进展.

关键词:

可编程的异构形态和导电性.心肌细胞的方向和成熟.导电性水凝支架是一种导电性水凝支架.电极形态调节的电泳战略

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