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

Ionic Crystal Structures02:42

Ionic Crystal Structures

18.1K
Ionic crystals consist of two or more different kinds of ions that usually have different sizes. The packing of these ions into a crystal structure is more complex than the packing of metal atoms that are the same size.
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
18.1K
Carboxylic Acids to Acid Chlorides01:18

Carboxylic Acids to Acid Chlorides

6.9K
Carboxylic acids react with SOCl2 or PCl5 to form acid chlorides. Amongst the carboxylic acid derivatives, acid chlorides are the most reactive and synthetically important derivatives. They are useful reagents for Friedel–Crafts acylation of some aromatic compounds.
6.9K
Preparation of Carboxylic Acids: Carboxylation of Grignard Reagents01:13

Preparation of Carboxylic Acids: Carboxylation of Grignard Reagents

5.6K
Carboxylic acids can be prepared by the carboxylation of Grignard reagents (RMgX). This method is convenient for converting alkyl (primary, secondary or tertiary), vinyl, benzyl, and aryl halides to carboxylic acids with one additional carbon than the starting RMgX.
5.6K
[3,3] Sigmatropic Rearrangement of Allyl Vinyl Ethers: Claisen Rearrangement01:24

[3,3] Sigmatropic Rearrangement of Allyl Vinyl Ethers: Claisen Rearrangement

1.9K
The Claisen rearrangement is a [3,3] sigmatropic rearrangement of allyl vinyl ethers to unsaturated carbonyl compounds. The rearrangement is a concerted pericyclic reaction proceeding via a chair-like transition state.
1.9K
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers01:20

Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers

2.8K
Class IV antiarrhythmic drugs, such as verapamil and diltiazem, block calcium channels. They primarily affect the heart, slowing the conduction in calcium-dependent tissues like the SA and AV nodes. These drugs manage reentrant supraventricular tachycardia (SVT) and reduce ventricular rate in atrial flutter/fibrillation.
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
2.8K
Transport Number01:31

Transport Number

250
The transport number is the fraction of the total current carried by an ion in an electrolyte solution. It is defined as the ratio of the current carried by a specific ion to the total current flowing through the solution. The transport number, t, is central to understanding ionic mobility, which describes how fast an ion moves under the influence of an electric field. This link connects the physical behavior of ions in solution to the chemical processes that occur during electrochemical...
250

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

Plasmapheresis in thyrotoxicosis: a single-center case series.

Journal of medical case reports·2024
Same author

Monitoring of type 2 diabetic patients during the 'Covid 19' pandemic by teleconsultation.

Annals of medicine and surgery (2012)·2022
Same author

Supercomputer-Based Ensemble Docking Drug Discovery Pipeline with Application to Covid-19.

Journal of chemical information and modeling·2020
Same author

Supercomputer-Based Ensemble Docking Drug Discovery Pipeline with Application to Covid-19.

ChemRxiv : the preprint server for chemistry·2020
Same author

Functionalized hydrogel microparticles prepared by microfluidics and their interaction with tumour marker carbonic anhydrase IX.

Soft matter·2020
Same author

Food choice motives including sustainability during purchasing are associated with a healthy dietary pattern in French adults.

Nutrition journal·2017
Same journal

Incoming US science academy chief vows to 'double down' on research.

Nature·2026
Same journal

Author Correction: Synthesis of enantioenriched atropisomers by biocatalytic deracemization.

Nature·2026
Same journal

Electrodeposited self-assembled molecules for perovskite photovoltaics.

Nature·2026
Same journal

Neutrino's nursery found: the 'Shadow Blaster'.

Nature·2026
Same journal

Dementia risk in middle-aged people linked to a blood protein.

Nature·2026
Same journal

Daily briefing: What's really happening with trust in science.

Nature·2026
查看所有相关文章

相关实验视频

Updated: May 5, 2026

Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

32.0K

基拉尔合体集群的基拉尔合体集群.

D Zerrouki1, J Baudry, D Pine

  • 1Laboratoire Colloïdes et Matériaux Divisés, ESPCI, UPMC, CNRS, ParisTech, 10 rue Vauquelin, 75005 Paris, France.

Nature
|September 19, 2008
PubMed
概括
此摘要是机器生成的。

研究人员创造了磁性合体子,可以自组装成形结构. 这一突破为在材料中产生特定的手性提供了一种新的方法,在化学和材料科学中具有潜在的应用.

更多相关视频

Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans
11:07

Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans

Published on: December 19, 2014

12.2K
Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
07:07

Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes

Published on: April 7, 2017

10.5K

相关实验视频

Last Updated: May 5, 2026

Crystallization of Membrane Proteins in Lipidic Mesophases
11:53

Crystallization of Membrane Proteins in Lipidic Mesophases

Published on: March 28, 2011

32.0K
Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans
11:07

Macrophage Cholesterol Depletion and Its Effect on the Phagocytosis of Cryptococcus neoformans

Published on: December 19, 2014

12.2K
Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes
07:07

Controlled-release of Chlorine Dioxide in a Perforated Packaging System to Extend the Storage Life and Improve the Safety of Grape Tomatoes

Published on: April 7, 2017

10.5K

科学领域:

  • 体科学是一种体科学.
  • 材料科学是一种材料科学.
  • 化学 化学 化学

背景情况:

  • 性在生物学,化学和物理中是基本的,影响生化途径.
  • DNA的双螺旋结构是从竞争的长度尺度中产生的奇拉性的一个例子.
  • 开发可控制的方法来创建性结构对于科学进步至关重要.

研究的目的:

  • 探索一种简单的方法来诱导合体系统中的合性.
  • 设计和利用磁性合体,以自组装成具有可控螺旋性的形结构.
  • 用不对称的合体手来建模形结构的形成.

主要方法:

  • 设计的不对称的合体,由磁带连接在一起.
  • 应用磁场来诱导皮带的自组装成链条.
  • 利用来自不对称球体的硬质约束来强迫链圈和性结构的形成.

主要成果:

  • 证明磁性合体子可以自组装成性结构.
  • 证明球体之间的足够大小比率导致单一的,可预测的螺旋性 (右或左).
  • 通过受控的自我组装,成功地创建了合性合体集群.

结论:

  • 这项研究提出了一种新的途径,通过使用磁力和粒子设计在合体系统中产生奇拉性.
  • 开发的合性合体集群为合体科学与化学之间提供了新的联系.
  • 潜在的应用包括用作中聚合物,光学材料和对分离的模型.