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関連する概念動画

Atomic Force Microscopy01:08

Atomic Force Microscopy

3.1K
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...
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Surface Tension and Surface Energy01:16

Surface Tension and Surface Energy

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When a paint brush is immersed in water, the bristles wave freely inside the water. When it is taken out, the bristles stick together. The reason behind this effect is surface tension.
Consider a beaker filled with liquid. The bulk molecules in the liquid experience equal attractive forces on all sides with the surrounding molecules. However, the surface molecules experience a net attractive force downward due to the bulk molecules. The surface of the liquid behaves like a stretched membrane,...
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関連する実験動画

Updated: May 5, 2026

High-speed Particle Image Velocimetry Near Surfaces
11:59

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

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ナノ粒子表面のダイナミクスと不安定性を視覚化

Peter A Crozier1, Matan Leibovich2, Piyush Haluai1

  • 1Materials Science and Engineering, School for Engineering of Matter, Transport & Energy, Arizona State University, Tempe, AZ, USA.

Science (New York, N.Y.)
|February 27, 2025
PubMed
まとめ
この要約は機械生成です。

研究者は10ミリ秒の解像度でナノ粒子の表面を画像化するために ディープラーニングの方法を使用した. これはダイナミックな移行とストレスによる欠陥を明らかにし,材料の特徴を高めます.

さらに関連する動画

Visualizing Diffusional Dynamics of Gold Nanorods on Cell Membrane using Single Nanoparticle Darkfield Microscopy
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Visualizing Diffusional Dynamics of Gold Nanorods on Cell Membrane using Single Nanoparticle Darkfield Microscopy

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Studying the Effects of Temperature on the Nucleation and Growth of Nanoparticles by Liquid-Cell Transmission Electron Microscopy
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Studying the Effects of Temperature on the Nucleation and Growth of Nanoparticles by Liquid-Cell Transmission Electron Microscopy

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関連する実験動画

Last Updated: May 5, 2026

High-speed Particle Image Velocimetry Near Surfaces
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High-speed Particle Image Velocimetry Near Surfaces

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Visualizing Diffusional Dynamics of Gold Nanorods on Cell Membrane using Single Nanoparticle Darkfield Microscopy
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Visualizing Diffusional Dynamics of Gold Nanorods on Cell Membrane using Single Nanoparticle Darkfield Microscopy

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Studying the Effects of Temperature on the Nucleation and Growth of Nanoparticles by Liquid-Cell Transmission Electron Microscopy
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Studying the Effects of Temperature on the Nucleation and Growth of Nanoparticles by Liquid-Cell Transmission Electron Microscopy

Published on: February 17, 2021

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科学分野:

  • 材料科学
  • ナノテクノロジー
  • 表面科学

背景:

  • 物質の機能性はミリ秒のスケールで 原子レベルのダイナミクスと結びついています
  • 電子顕微鏡は,高解像度画像の信号対ノイズの制限に直面しています.

研究 の 目的:

  • 電子顕微鏡での信号対ノイズの制限を克服し,高速な原子動態を観察する.
  • ガス環境下における金属ナノ粒子表面のダイナミックな振る舞いを調査する.

主な方法:

  • 監視されていない ディープ・デノイジング・フレームワークを開発しました
  • シト電子顕微鏡でセリウム酸化物のプラチナナノ粒子に適用した.
  • 適度な電子量で10ミリ秒までの時間解像度を達成しました.

主要な成果:

  • ナノ粒子の表面上の秩序と無秩序の間の連続した移行を観察した.
  • 表面に突入して 欠陥形成と不安定化を引き起こした ストレスフィールドを特定した
  • ナノ粒子の流動的振る舞いをミリ秒のスケールで示した.

結論:

  • 電子顕微鏡での空間時間的特徴づけを大幅に改善します.
  • このアプローチは,物質の原子レベルの構造的動態を探求するための新しい道を開きます.
  • ダイナミックな表面の移行を理解することは 材料の機能性にとって極めて重要です