原-纳米纤维素水凝的纳米和微结构作为工程外细胞矩阵
Rodrigo Curvello1, Vikram Singh Raghuwanshi1,2, Chun-Ming Wu3,4
1Department of Chemical and Biological Engineering, Monash University, Clayton, Victoria 3800, Australia.
ACS applied materials & interfaces
|December 20, 2023
概括
原纳米纤维素水凝为组织工程提供可调节的特性. 微角中子散射揭示了纳米纤维素扩大了原网络,在不改变纤维结构的情况下改善了同质性,即使存在细胞.
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.
- 材料的特性 材料的特性
背景情况:
- 细胞外基质 (ECM) 对于组织结构和细胞信号传递至关重要.
- 三维 (3D) 组织模型利用水凝来模拟体外ECM.
- 原纳米纤维素 (COL-NC) 水凝是用于3D模型的有希望的生物材料,但它们的结构尚不清楚.
研究的目的:
- 为了研究原-纳米纤维素 (COL-NC) 水凝的结构组织.
- 为了确定将纳米纤维素 (NC) 纤维纳入原蛋白 (COL) 水凝的效果.
- 使用散射技术阐明纳米和微米尺度的聚合物组织.
主要方法:
- 采用了小角度中子散射 (SANS) 和超小角度中子散射 (USANS).
- 这些技术分析了COL-NC水凝的等级结构.
- 确定了结构参数,包括纤维尺寸和纤维间距离.
主要成果:
- 纳米纤维素 (NC) 扩展并增加了原蛋白 (COL) 网络的同质性.
- 原蛋白和纳米纤维素的固有纤维特性没有受到影响.
- 在COL-NC水凝中培养的细胞重塑了网络,但没有显著改变其架构.
结论:
- 这项研究揭示了COL-NC水凝中的聚合物组织.
- SANS 和 USANS 是用于描述水凝纳米和微米尺度结构的强大工具.
- 了解 COL-NC 水凝结构是设计用于组织模型的新型 ECM 模拟的关键.
相关概念视频
01:42The Extracellular Matrix
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.Composition of the Extracellular MatrixThe extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse molecules.
01:29The Extracellular Matrix
Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...