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

Scanning Electron Microscopy01:07

Scanning Electron Microscopy

4.3K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
4.3K
Overview of Microscopy Techniques01:22

Overview of Microscopy Techniques

10.5K
The early pioneers of microscopy opened a window into the invisible world of microorganisms. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes that leveraged nonvisible light, such as fluorescence microscopy that uses an ultraviolet light source and electron microscopy that uses short-wavelength electron beams. These advances significantly improved magnification, image resolution, and contrast. By comparison, the...
10.5K
X-ray Diffraction of Biological Samples01:10

X-ray Diffraction of Biological Samples

3.9K
X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are  scattered by the electron clouds around the sample atoms. The  X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...
3.9K
Electron Microscope Tomography and Single-particle Reconstruction01:07

Electron Microscope Tomography and Single-particle Reconstruction

2.4K
Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...
2.4K
Atomic Force Microscopy01:08

Atomic Force Microscopy

3.4K
Atomic force microscopy (AFM) is a type of scanning probe microscopy that can analyze topographic details of various specimens like ceramics, glass, polymers, and biological samples. AFM offers over 1000 times more resolution than the optical imaging system. Images generated from AFM are three-dimensional surface profiles, offering an advantage over the flat, two-dimensional images from other imaging techniques.
The AFM Probe
The probe is regarded as the heart of any AFM setup and comprises the...
3.4K
Overview of Electron Microscopy01:25

Overview of Electron Microscopy

9.2K
The wavelengths of visible light ultimately limit the maximum theoretical resolution of images created by light microscopes. Most light microscopes can only magnify 1000X, and a few can magnify up to 1500X. Electrons, like electromagnetic radiation, can behave like waves, but with wavelengths of 0.005 nm, they produce significantly greater resolution up to 0.05 nm as compared to 500 nm for visible light. An electron microscope (EM) can create a sharp image that is magnified up to 2,000,000X.
9.2K

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

Pyrolysis of an amorphous cobalt(II) cubane-like coordination polymer towards tunable structurally disordered materials.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

A Monolithic Artificial Leaf for Solar Methanol Production from CO<sub>2</sub> and H<sub>2</sub>O.

Journal of the American Chemical Society·2026
Same author

Silver Oxide Nanoparticles as Solid-State Hydroxide Ion Conductors for Watt-Scale Anion Exchange Membrane Fuel Cells.

ACS energy letters·2026
Same author

Absorption Correction for Reliable Pair Distribution Functions from Low Energy X‑ray Sources.

Crystal growth & design·2026
Same author

"Rotator cuff arthropathy: Insights into this under-recognized entity".

Journal of clinical orthopaedics and trauma·2026
Same author

Charge Transfer Dynamics in Dye-Sensitized Photocatalysts Using Metal Complex Sensitizers with Long-Wavelength Visible Light Absorption Based on Singlet-Triplet Excitation.

ACS catalysis·2025
Same journal

Quantitative analysis of light-induced ion segregation in mixed-halide perovskites.

Journal of applied crystallography·2026
Same journal

Towards machine-learning-based on-the-fly analysis of neutron reflectometry.

Journal of applied crystallography·2026
Same journal

<i>mcstas_gisans</i>: combining ray tracing with the distorted-wave Born approximation using <i>McStas</i> and <i>BornAgain</i> for virtual GISANS experiments.

Journal of applied crystallography·2026
Same journal

Computational methods for automated center determination in electron diffraction patterns.

Journal of applied crystallography·2026
Same journal

Epitaxy of ultrathin Fe<sub>3</sub>O<sub>4</sub> films on SrTiO<sub>3</sub>(001): influence of growth parameters on the formation of coexisting (111)- and (001)-oriented phases.

Journal of applied crystallography·2026
Same journal

Spin excitations near the pressure-induced antiferromagnetic transition in SrCu<sub>2</sub>(BO<sub>3</sub>)<sub>2</sub>.

Journal of applied crystallography·2026
查看所有相关文章

相关实验视频

Updated: Jul 19, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.8K

向扫描纳米结构的X射线显微镜进行X射线显微镜.

Anton Kovyakh1, Soham Banerjee2, Chia-Hao Liu2

  • 1Niels Bohr Institute, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark.

Journal of applied crystallography
|August 9, 2023
PubMed
概括
此摘要是机器生成的。

本研究提出了一种使用X射线衍射在薄膜中绘制纳米结构的新方法. 该技术可以为先进的应用程序提供材料性能的详细可视化.

关键词:
原子对的分布函数是原子对的分布函数.纳米颗粒是一种纳米粒子.空间绘制地图薄膜是一种薄膜.

更多相关视频

Studying Dynamic Processes of Nano-sized Objects in Liquid using Scanning Transmission Electron Microscopy
10:29

Studying Dynamic Processes of Nano-sized Objects in Liquid using Scanning Transmission Electron Microscopy

Published on: February 5, 2017

12.8K
Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis
08:26

Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis

Published on: December 10, 2019

9.3K

相关实验视频

Last Updated: Jul 19, 2025

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
08:18

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry

Published on: March 4, 2021

1.8K
Studying Dynamic Processes of Nano-sized Objects in Liquid using Scanning Transmission Electron Microscopy
10:29

Studying Dynamic Processes of Nano-sized Objects in Liquid using Scanning Transmission Electron Microscopy

Published on: February 5, 2017

12.8K
Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis
08:26

Cell Culture on Silicon Nitride Membranes and Cryopreparation for Synchrotron X-ray Fluorescence Nano-analysis

Published on: December 10, 2019

9.3K

科学领域:

  • 材料科学 材料科学 材料科学
  • 纳米技术 纳米技术
  • 分析化学 分析化学

背景情况:

  • 在薄膜中描述局部和纳米结构对于理解材料特性至关重要.
  • 传统方法往往缺乏复杂薄膜系统所需的空间分辨率或全面分析.
  • 从液体前体中沉积纳米粒子提供了一种多功能途径,用于创建功能性薄膜材料.

研究的目的:

  • 在薄膜上展示局部和纳米结构的空间映射.
  • 开发和实施使用空间解析对分布函数 (PDF) 分析进行数据采集和分析的自动化协议.
  • 在芯片实验室系统中可视化催化相关纳米粒子的结构洞察力.

主要方法:

  • 空间解析对分布函数 (PDF) 对同步龙X射线衍射数据的分析.
  • 喷墨液体处理系统用于将液体前体中的纳米粒子沉积到芯片上实验室阵列上.
  • 自动化软件协议用于数据减少,规范化,建模和元数据生成.

主要成果:

  • 在薄膜物体中成功地绘制了局部和纳米级结构的空间映射.
  • 在一种具有催化作用的有趣纳米粒子的组合阵列上演示该协议.
  • 通过切片分析结果生成具有不同对比特征的图像,提供结构洞察力.

结论:

  • 开发的协议允许在薄膜中对纳米结构进行详细的空间映射.
  • 使用原子PDF方法自动数据采集和分析简化了表征过程.
  • 这种方法为材料的局部结构提供了有价值的见解,特别是基于纳米粒子的薄膜.