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相关概念视频

Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

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Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
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相关实验视频

Updated: Jan 16, 2026

3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles
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3D Orbital Tracking in a Modified Two-photon Microscope: An Application to the Tracking of Intracellular Vesicles

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单分子频谱动态成像与3D目标锁定跟踪

Hao Sha1,2, Yu Wu2,3, Yongbing Zhang4,5

  • 1School of Computer Science and Technology, Harbin Institute of Technology (Shenzhen), Shenzhen, China.

Nature communications
|September 30, 2025
PubMed
概括
此摘要是机器生成的。

我们开发了一种新的显微镜技术,3D-SpecDIM,可以同时实时跟踪生物分子运动和光谱变化. 这一突破使我们能够更深入地了解单个分子层面的动态生物过程.

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A Protocol for Real-time 3D Single Particle Tracking

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Direct Imaging of Laser-driven Ultrafast Molecular Rotation

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相关实验视频

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科学领域:

  • 生物物理学的生物物理.
  • 先进的显微镜技术
  • 分子成像学分子成像学

背景情况:

  • 光光谱提供了关于分子环境的详细物理化学信息.
  • 同时对单个生物分子的快速3D定位和光谱动态进行成像是具有挑战性的.

研究的目的:

  • 引入一种新的显微镜方法,3D-SpecDIM,用于同时对单个生物分子进行3D位置和光谱动态成像.
  • 为了证明3D-SpecDIM在实时生物过程成像中的能力.

主要方法:

  • 开发了基于三维锁定目标的单分子光光谱动态成像显微镜 (3D-SpecDIM).
  • 实现了高光谱精度,快速光谱采集,单分子灵敏度和高3D时空定位精度.
  • 应用3D-SpecDIM对线粒细胞衰变和细胞染过程进行成像.

主要成果:

  • 3D-SpecDIM成功地同时捕获了快速的3D定位和物理化学参数动态.
  • 在实时线粒细胞衰变成像过程中证明了增强的比度光成像.
  • 展示了多分辨率成像和定量成像功能用于蜂blebbing.

结论:

  • 3D-SpecDIM是一种用于并发多参数动态采集的多功能平台.
  • 提供了对生物分子环境和传统方法无法实现的相互作用的全面见解.
  • 代表了单分子光谱动态成像技术的重大进步.