牛大腿骨中的多链的移动性由电场控制
Fernando Daniel Lambri1, Federico Guillermo Bonifacich1, Melania Lucila Lambri1
1CONICET-UNR, Laboratorio de Materiales (LEIM), Escuela de Ingeniería Eléctrica, Centro de Tecnología e Investigación Eléctrica (CETIE), Facultad de Ciencias Exactas, Ingeniería y Agrimensura, Avda. Pellegrini 250, 2000 Rosario, Argentina. olambri@fceia.unr.edu.ar.
Physical chemistry chemical physics : PCCP
|January 17, 2025
概括
这项研究调查了电场如何影响骨聚链的移动性,发现和电场强度影响链的移动. 达利特在这些条件下发现对链路流动性没有影响.
科学领域:
- 生物物理学的生物物理.
- 材料科学 材料科学 材料科学
- 生物材料是一种生物材料.
背景情况:
- 骨包括多链,其移动性对其机械性能至关重要.
- 了解外部刺激,如电场,如何影响这些链对于生物材料应用至关重要.
- 之前的研究还没有探讨高电场对骨多链流动性的影响.
研究的目的:
- 为了确定电场对牛皮层大腿骨中多链移动性的影响.
- 调查热温度和电场强度对应变不适合和链路移动性的作用.
- 探索电气产生的障碍物和多链之间的相互作用.
主要方法:
- 基于埃舍尔比理论的平均场模型来分析应变不适应.
- 修改了弗里德尔模型来计算双极和多链之间的相互作用能量.
- 在高电场下进行动态机械分析 (DMA),差异热分析 (DTA) 和热重力测量 (TGA).
主要成果:
- 应变不适合行为被建模为电场强度的函数.
- 化处理影响了变性化状态,影响了激活的二极体和随后的链流动性.
- 观察到达利特在应用电场下不会影响多链的移动性.
- 在高电场下对骨进行了新的DMA测量.
结论:
- 电场显著影响骨中的多链流动性,这种流动性是由化诱导的变性调节的.
- 这项研究为了解分子层面的骨电机学合提供了一个框架.
- 这项研究开创了在高电场下使用DMA进行骨分析的先驱技术.
相关概念视频
01:24Generation of Action Potential in Skeletal Muscles
4.1K
Every cell in the body maintains a membrane potential due to an uneven distribution of positive and negative charges across its plasma membrane. The membrane potential is measured in millivolts and quantifies the difference in charge across the membrane.
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the...
Like neurons, muscle cells are also regarded as excitable due to their capacity to change in response to stimuli, primarily due to voltage-gated ion channels embedded in their plasma membranes, which get activated by alterations in the...
4.1K
01:13Actin Polymerization and Cell Motility
5.1K
Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
5.1K