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関連する概念動画

Drag Force and Terminal Speed01:18

Drag Force and Terminal Speed

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An interesting force in everyday life is the force of drag on an object when it is moving in a fluid. Like friction, the drag force always opposes the motion of an object. Unlike simple friction, the drag force is proportional to some function of the velocity of the object in that fluid. This functionality is complicated and depends upon the shape of the object, its size, its velocity, and the fluid it is in. For most large objects, such as cyclists, cars, and baseballs, that are not moving too...
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Atomic Force Microscopy01:08

Atomic Force Microscopy

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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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Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

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The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
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Resonance02:52

Resonance

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The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N-O and N=O bonds.
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Atomic Orbitals02:44

Atomic Orbitals

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An atomic orbital represents the three-dimensional regions in an atom where an electron has the highest probability to reside. The radial distribution function indicates the total probability of finding an electron within the thin shell at a distance r from the nucleus. The atomic orbitals have distinct shapes which are determined by l, the angular momentum quantum number. The orbitals are often drawn with a boundary surface, enclosing densest regions of the cloud.
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Intermolecular Forces03:13

Intermolecular Forces

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Atoms and molecules interact through bonds (or forces): intramolecular and intermolecular. The forces are electrostatic as they arise from interactions (attractive or repulsive) between charged species (permanent, partial, or temporary charges) and exist with varying strengths between ions, polar, nonpolar, and neutral molecules. The different types of intermolecular forces are ion–dipole, dipole–dipole, hydrogen bonds, and dispersion; among these, dipole–dipole, hydrogen...
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関連する実験動画

Updated: Feb 8, 2026

High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping
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High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping

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高速度積分非共鳴原子間力顕微鏡

Kaixuan Wang1,2, Jialin Shi1, Peng Yu1

  • 1State Key Laboratory of Robotics and Intelligent Systems, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China.

Nano letters
|February 7, 2026
PubMed
まとめ
この要約は機械生成です。

科学者たちは、原子間力顕微鏡（AFM）用の積分非共鳴タッピング（I-ORT）モードを開発しました。この新しい方法は、データ品質を損なうことなく、動的材料のイメージングを大幅に高速化します。

キーワード:
原子間力顕微鏡高速イメージングナノメカニカル特性評価非共鳴タッピング粘弾性材料

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Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope
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Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope

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Automation of Bio-Atomic Force Microscope Measurements on Hundreds of C. albicans Cells
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Automation of Bio-Atomic Force Microscope Measurements on Hundreds of C. albicans Cells

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関連する実験動画

Last Updated: Feb 8, 2026

High-Speed Atomic Force Microscopy Imaging of DNA Three-Point-Star Motif Self Assembly Using Photothermal Off-Resonance Tapping
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Force Spectroscopy of Single Protein Molecules Using an Atomic Force Microscope
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Automation of Bio-Atomic Force Microscope Measurements on Hundreds of C. albicans Cells
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科学分野:

  • 材料科学;ナノテクノロジー;生体材料科学

背景:

  • 原子間力顕微鏡（AFM）は、同時機械的マッピングと地形学的特性評価を可能にします。;AFMの非共鳴タッピング（ORT）モードはデュアル機能を提供しますが、閉ループ遅延と限られた堅牢性による低速イメージングに苦しんでいます。;現在のORTモードの制限により、動的サンプルの研究は困難です。

研究 の 目的:

  • AFMにおけるORTモードのイメージング速度を向上させること。;従来のORTモードの制限、特に閉ループ遅延と堅牢性を克服すること。;動的材料および生体材料の高速特性評価を可能にすること。

主な方法:

  • AFM用の積分非共鳴タッピング（I-ORT）モードを開発しました。;固定点サンプリングを、ベースライン上の相互作用曲線の積分サンプリングに置き換えました。;従来のORTモードと同じ駆動およびセンシング条件を維持しました。

主要な成果:

  • 従来のORTモードと比較してスキャン速度が10倍向上しました。;機械的特性評価の品質を維持しました。;プローブとサンプルの相互作用による予測不可能な干渉を軽減しました。

結論:

  • I-ORTモードはAFMイメージングの速度を大幅に向上させます。;この進歩は以前の制限を克服し、動的サンプルの研究を可能にします。;I-ORTモードは、より高速で高解像度の特性評価を提供することにより、ハイエンドナノテクノロジー研究をサポートします。