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

Colloids03:22

Colloids

21.2K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
21.2K
Colloids and Suspensions01:17

Colloids and Suspensions

3.5K
Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles visible to the naked eye or seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. The suspended particles in a suspension settle out after some time of mixing. The separation of particles from a suspension is...
3.5K
Excess Pressure Inside a Drop and a Bubble01:13

Excess Pressure Inside a Drop and a Bubble

3.5K
The shape of a small drop of liquid can be considered spherical, neglecting the effect of gravity. This drop can further be considered as two equal hemispherical drops put together due to surface tension. The forces acting on the spherical drop are due to the pressure of the liquid inside the drop, the pressure due to air outside the drop, and the force due to the surface tension acting on the two hemispherical drops.
3.5K
Colloidal precipitates01:09

Colloidal precipitates

6.5K
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
6.5K
DNA Base Pairing02:27

DNA Base Pairing

33.3K
Erwin Chargaff’s rules on DNA equivalence paved the way for the discovery of base pairing in DNA. Chargaff’s rules state that in a double-stranded DNA molecule,
33.3K
DNA Base Pairing02:27

DNA Base Pairing

32.7K
32.7K

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

Green-Kubo relation in a mesoscale odd fluid model.

The Journal of chemical physics·2026
Same author

Bioinspired Artificial Bioenergetic Organelles: Design Principles, Nanofabrication and Therapeutic Translation.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Chemotactic Gold Nanozyme-Powered Flasklike Pentosan Nanobots for Tumor-Specific Drug Delivery.

Advanced healthcare materials·2026
Same author

Mesoscale simulation model for odd fluids.

Physical review. E·2026
Same author

Low-temperature hyperbolic phonon polaritonics with suppressed phononic scattering.

Science advances·2026
Same author

Microalgae Oil Attenuates Liver Fat Deposition in NAFLD via Modulation of Anti-Lipogenic Genes and Insulin Signaling Pathways in HFD Mice.

Food science & nutrition·2026
Same journal

A Ni-Mediated Cross-Coupling Approach to Deuterated <sup>18</sup>F- Fluoromethylated (Hetero)arenes.

Journal of the American Chemical Society·2026
Same journal

Efficient Light-Driven CO<sub>2</sub> Capture and Reversible Release Enabled by Metastable Photoacid-Decorated Metal-Organic Frameworks.

Journal of the American Chemical Society·2026
Same journal

In Situ Raman Spectroscopy Reveals the Dynamic Evolution and Ethanol Dependence of SEI Structure in Li-Mediated N<sub>2</sub> Reduction Reaction.

Journal of the American Chemical Society·2026
Same journal

Solvent Esterification and Stoichiometric Control in Ambient-Grown FAPbI<sub>3</sub> Single-Crystal Solar Cells.

Journal of the American Chemical Society·2026
Same journal

Unlocking Azulene Functionalization via Strain-Induced Azulyne Intermediates.

Journal of the American Chemical Society·2026
Same journal

An Oxazine-Locked Covalent Organic Framework by a Tandem Pinner/Schiff Base Reaction for Hydrogen Peroxide Photosynthesis.

Journal of the American Chemical Society·2026
查看所有相关文章

相关实验视频

Updated: Feb 5, 2026

Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant CRASH-P Test
06:52

Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant CRASH-P Test

Published on: February 6, 2021

4.4K

气泡双驱动的体皮艇

Yingjie Wu1, Tieyan Si1, Changyong Gao1

  • 1Key Laboratory of Microsystems and Microstructures Manufacturing, Ministry of Education , Harbin Institute of Technology , Yi Kuang Jie 2 , Harbin 150080 , China.

Journal of the American Chemical Society
|September 5, 2018
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种二氧化物 (MnO2) 纳米发动机,它使用过氧化中的氧气泡来实现自动运动. 不对称的催化点控制了泡动力学,使纳米机应用能够控制运动.

更多相关视频

Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K
Endoscopic Approach for Colloid Cyst Resection
02:30

Endoscopic Approach for Colloid Cyst Resection

Published on: May 23, 2025

797

相关实验视频

Last Updated: Feb 5, 2026

Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant CRASH-P Test
06:52

Laboratory Scale Slow Cook-Off Testing of Rocket Propellants: The Combustion Rate Analysis of a Slowly Heated Propellant CRASH-P Test

Published on: February 6, 2021

4.4K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

10.5K
Endoscopic Approach for Colloid Cyst Resection
02:30

Endoscopic Approach for Colloid Cyst Resection

Published on: May 23, 2025

797

科学领域:

  • 体科学
  • 纳米技术
  • 化学工程

背景情况:

  • 催化纳米发动机为微观应用提供了潜力.
  • 泡驱动推进是纳米技术的一个新兴领域.
  • 二氧化 (MnO2) 是已知的过氧化分解催化剂.

研究的目的:

  • 设计和研究一个新的空心形MnO2合纳米电机.
  • 探索由氧气泡驱动的自行运动机制.
  • 了解不对称的催化场如何影响纳米运动动力学.

主要方法:

  • 合成空洞的形MnO2体艇.
  • 通过过氧化的催化分解生成氧气泡.
  • 对气泡增长 (同步/异步) 和纳米运动的观察.
  • 应用过的兰杰文方程和流体场模拟.

主要成果:

  • 通过氧气泡驱动的MnO2体皮划艇演示了自行运动.
  • 气泡生长模式 (同步/异步) 通过不对称的催化位控制.
  • 不对称的推进力产生驱动力和心向力,导致循环运动.
  • 实验动力学是通过兰杰文方程和模拟准确地建模的.

结论:

  • 一种新的气泡对推进的体纳米电机已成功开发出来.
  • 不对称的催化点对于控制纳米发动机的推进和运动至关重要.
  • 这项研究促进了催化纳米电机的理解和应用.