Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

2.9K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
2.9K
Overview of Electron Microscopy01:25

Overview of Electron Microscopy

11.6K
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.
11.6K
Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

4.1K
Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
4.1K
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

5.6K
When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
5.6K
Scanning Electron Microscopy01:07

Scanning Electron Microscopy

5.1K
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...
5.1K
IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration01:16

IR Spectroscopy: Hooke's Law Approximation of Molecular Vibration

3.3K
A covalently bonded heteronuclear diatomic molecule can be modeled as two vibrating masses connected by a spring. The vibrational frequency of the bond can be expressed using an equation derived from Hooke's law, which describes how the force applied to stretch or compress a spring is proportional to the displacement of the spring. In this case, the atoms behave like masses, and the bond acts like a spring.
According to Hooke's law, the vibrational frequency is directly proportional to...
3.3K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Formation Mechanism and Enhanced Iodine Capture of Copper-Based Aluminum-Oxo Cluster Bimetallic Organic Frameworks.

Inorganic chemistry·2026
Same author

Electron ptychography reveals correlated lattice vibrations at atomic resolution.

Nature communications·2026
Same author

Platform and Framework for Time-Resolved Nanoscale Thermal Transport Measurements in STEM.

Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada·2026
Same author

Damage-limited resolution for X-ray and electron microscopy of organic specimens.

Acta crystallographica. Section D, Structural biology·2026
Same author

Low-energy densification of carbon anodes for fluorine electrolysis applications <i>via</i> a multi-cycle impregnation-carbonization route.

RSC advances·2026
Same author

Early Microstructural Changes in the Left Inferior Fronto-Occipital Fasciculus: A Key Factor in Probable Alzheimer's Disease Patients With Slow Gait Speed.

Brain and behavior·2026
Same journal

Daily briefing: 'Cyborg' cockroaches breathe underwater with printed suit.

Nature·2026
Same journal

China boosts prestigious grants for young scientists - will it ease competition?

Nature·2026
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
関連記事をすべて見る

関連する実験動画

Updated: Apr 22, 2026

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

7.5K

電子顕微鏡での振動スペクトロスコピーは,電子顕微鏡で振動スペクトロスコピーを使用します.

Ondrej L Krivanek1, Tracy C Lovejoy2, Niklas Dellby2

  • 11] Nion Company, 1102 Eighth Street, Kirkland, Washington 98033, USA [2] Department of Physics, Arizona State University, Tempe, Arizona 85287, USA.

Nature
|October 10, 2014
PubMed
まとめ
この要約は機械生成です。

高解像度の振動スペクトロスコピーは,電子顕微鏡で可能になりました. この突破は,ナノ材料とその振動モードの詳細な分析を可能にし,最小限の放射線損傷で水素さえ検出します.

さらに関連する動画

Visualization of miniSOG Tagged DNA Repair Proteins in Combination with Electron Spectroscopic Imaging ESI
13:06

Visualization of miniSOG Tagged DNA Repair Proteins in Combination with Electron Spectroscopic Imaging ESI

Published on: September 24, 2015

9.6K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

12.8K

関連する実験動画

Last Updated: Apr 22, 2026

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F&#8722;
06:53

Photoelectron Imaging of Anions Illustrated by 310 Nm Detachment of F−

Published on: July 27, 2018

7.5K
Visualization of miniSOG Tagged DNA Repair Proteins in Combination with Electron Spectroscopic Imaging ESI
13:06

Visualization of miniSOG Tagged DNA Repair Proteins in Combination with Electron Spectroscopic Imaging ESI

Published on: September 24, 2015

9.6K
Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation
09:53

Molecular Beam Mass Spectrometry With Tunable Vacuum Ultraviolet VUV Synchrotron Radiation

Published on: October 30, 2012

12.8K

科学分野:

  • マテリアルサイエンス 材料科学
  • スペクトル顕微鏡検査です.
  • ナノテクノロジー ナノテクノロジー

背景:

  • 振動スペクトロスコピーは,材料分析に不可欠ですが,通常,高い空間解像度が欠けています.
  • 赤外線やラーマン光譜などの既存の方法は,限られた空間解像度 (マイクロメートルからナノメートル) を提供します.
  • トランスミッション電子顕微鏡 (TEM) は高い空間解像度を提供しているが,振動スペクトロスコピーのエネルギー解像度には欠けていた.

研究 の 目的:

  • 伝送電子顕微鏡 (TEM) の内での振動スペクトルスコピーを可能にするために.
  • 材料の振動分析のためのナノメートルレベルの空間解像度を達成するために.
  • ナノ構造物における振動スペクトロスコピーの新たな応用を探求する.

主な方法:

  • スキャニング伝送電子顕微鏡 (STEM) の内部での電子エネルギー損失スペクトロスコピー (EELS) の最近の進歩を利用します.
  • 約10ミリエレクトロンボルト (meV) のエネルギー解像度を達成する.
  • 高い空間解像度と低い空間解像度の両方の振動信号分析のための技術を開発する.

主要な成果:

  • TEMでナノメートルレベルの解像度で成功している振動スペクトロスコーピーを実証しました.
  • この技術を水素検出を含む無機および有機物質の分析に適用した.
  • 放射線損傷を軽減した分析のための"遠隔"スペクトルスコピーを展示しました.

結論:

  • STEMにおけるEELSの解像度の向上により,電子顕微鏡での振動スペクトロスコピーを可能にする.
  • このテクニックは,多様なナノ構造の振動モードを研究するための新しい道を開きます.
  • 二重コンポーネントの信号は,高解像度マッピングとダメージを最小限に抑えたアロフスペクトルスコピーを可能にします.