Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Fluid Mosaic Model01:19

Fluid Mosaic Model

19.1K
Scientists identified the plasma membrane in the 1890s and its principal chemical components (lipids and proteins) by 1915. The model for plasma membrane structure, proposed in 1935 by Hugh Davson and James Danielli, was the first model to be widely accepted in the scientific community. The model was based on the plasma membrane's "railroad track" appearance in early electron micrographs. Davson and Danielli theorized that the plasma membrane's structure resembled a sandwich...
19.1K
Membrane Fluidity01:26

Membrane Fluidity

17.4K
Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is...
17.4K
Membrane Fluidity01:23

Membrane Fluidity

178.3K
Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.
178.3K
Asymmetric Lipid Bilayer01:35

Asymmetric Lipid Bilayer

10.7K
Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
10.7K
Membrane Asymmetry Regulating Transporters01:19

Membrane Asymmetry Regulating Transporters

7.8K
Enzymes like flippase, floppase, and scramblase transfer phospholipids from one layer to another in the membrane, thereby affecting membrane asymmetry.
Flippase
Eukaryotic flippases are type-IV P-type ATPases or P4-ATPases belonging to P-type ATPase family proteins that are membrane-bound pumps involved in the ATP-mediated transport of ions and molecules across the membrane. Flippases flip specific phospholipids from the outer to the inner leaflet of a membrane. All P4-ATPases have one...
7.8K
Membrane Proteins01:30

Membrane Proteins

31.2K
Plasma membranes have integral transmembrane proteins involved in facilitated transport. These proteins are collectively referred to as transport proteins, and they function as either channels for the material or as carriers themselves. Channel proteins have hydrophilic domains exposed to the intracellular and extracellular fluids and a hydrophilic channel through their core that provides a hydrated opening for solutes to pass through the membrane layers. Passage through the channel allows...
31.2K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Causal associations between plasma proteins and premature ovarian failure through multi-omics Mendelian randomization analyses.

Gynecology and pelvic medicine·2026
Same author

Clifford Hierarchy Stabilizer Codes: Transversal Non-Clifford Gates and Magic States.

Physical review letters·2026
Same author

Non-catheter-adherent right atrial mural thrombus in a patient with systemic sclerosis undergoing hemodialysis: a case report.

CEN case reports·2026
Same author

Natural occurrence and dietary risk assessment of Alternaria toxins in wheat flour and its products in Shanghai, China.

Food research international (Ottawa, Ont.)·2026
Same author

Optimization of Andrographolide Nanocrystal-loaded Liposomes by Box-Behnken Design and its <i>In vitro</i> and <i>In vivo</i> Evaluation.

Current drug delivery·2026
Same author

Approaches for enhancing bioavailability of macromolecular drugs.

International journal of pharmaceutics·2026

相关实验视频

Updated: Mar 15, 2026

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis
07:31

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis

Published on: July 16, 2020

6.7K

任何离子膜和庞特里亚金的统计数据

Yitao Feng1, Hanyu Xue2, Yuyang Li1

  • 1Peking University, International Center for Quantum Materials, School of Physics, Beijing 100871, China.

Physical review letters
|March 13, 2026
PubMed
概括

这项研究引入了四维膜激发的新型无离子统计,超越了二维系统. 提出了一种56步的过程,以在更高的维度中检测这些独特的Z_{N×gcd{3,N) } 统计数据.

更多相关视频

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
08:50

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton

Published on: March 10, 2023

1.2K
Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

3.4K

相关实验视频

Last Updated: Mar 15, 2026

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis
07:31

Native Cell Membrane Nanoparticles System for Membrane Protein-Protein Interaction Analysis

Published on: July 16, 2020

6.7K
The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
08:50

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton

Published on: March 10, 2023

1.2K
Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches
07:31

Author Spotlight: Advancing Cell Membrane Biophysics - Exploring Interactions and Challenges Through Experimental and Computational Approaches

Published on: September 1, 2023

3.4K

科学领域:

  • 理论物理 理论物理
  • 物质的拓阶段.
  • 更高维度的量子力学.

背景情况:

  • 2D中的任何子是诸如分数量子霍尔效应之类的现象的关键.
  • 将任何统计数据推广到更高的维度是一个重大挑战.
  • 拓约束将循环统计局限于更高维度的玻色子或费米子.

研究的目的:

  • 介绍四维膜激发的新型阳离子统计.
  • 开发一种方法来检测这些更高维度的anyonic统计数据.
  • 分析拓相与无离子膜统计数据之间的关系.

主要方法:

  • 在四个维度中分析Z_{N}膜统计数据,显示Z_{N×gcd{3,N) }行为.
  • 关于使用边界运算符检测膜统计数据的56步单元序列的建议.
  • 研究 (5+1) D 1-form Z_{N} 对称性保护的拓相及其域壁.

主要成果:

  • Z_{N} 膜在四个维度中表现出 Z_{N×gcd{3,N) } 的任何统计数据.
  • 拟议的56步序列成功地检测了这些统计数据.
  • (5+1) D拓相的域壁实现了所有可能的离子膜统计.
  • 与Pontryagin类相关的Z_{3}统计数据与更高维度的标准Z_{2}费米子统计数据一起观察到.

结论:

  • 这项研究成功地将无离子统计数据对膜激发的更高维度进行了概括.
  • 拟议的检测方法在最大7个维度中得到验证.
  • 膜激发统计数据稳定到7个以上维度的Z_{2}×Z_{3},Z_{3}可以始终检测到.