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显微镜科学与教学知识中心

显微镜科学与教学知识中心

徕卡显微系统的知识库提供有关显微镜学科的科学研究和教学材料。内容旨在对显微镜初学者、有经验的显微镜操作实践者和使用显微镜的科学家在他们的日常工作和实验有所帮助。这里有探索交互式教程和应用笔记，你可以找到你需要的显微镜的基础知识以及前沿技术——快来加入徕卡显微知识社区，分享您的专业知识！
TIRF Image of Tubulin, YFP, penetration depth: 120 mm

Applications of TIRF Microscopy in Life Science Research

The special feature of TIRF microscopy is the employment of an evanescent field for fluorophore excitation. Unlike standard widefield fluorescence illumination procedures with arc lamps, LEDs or…
[Translate to chinese:] Jellyfish Aequorea Victoria

荧光蛋白--从起步到诺贝尔奖

荧光蛋白是近代荧光显微技术及其现代应用的基础。荧光蛋白的发现和随之而来的发展是上世纪生命科学领域最激动人心的创新之一，也是破译无数自然现象的起点。
Snapshot from a time lapse of a calcium imaging experiment using the ratiometric calcium indicator Fura-2.

Ratiometric Imaging

Many fundamental functions of a cell strongly depend on delicate, but nevertheless dynamic balances of ions (e.g. calcium, magnesium), voltage potentials and pH between the cell’s cytosol and the…

Fluorescence Recovery after Photobleaching (FRAP) and its Offspring

FRAP (Fluorescence recovery after photobleaching) can be used to study cellular protein dynamics: For visualization the protein of interest is fused to a fluorescent protein or a fluorescent dye. A…

Förster Resonance Energy Transfer (FRET)

The Förster Resonance Energy Transfer (FRET) phenomenon offers techniques that allow studies of interactions in dimensions below the optical resolution limit. FRET describes the transfer of the energy…

An Introduction to CARS Microscopy

CARS overcomes the drawbacks of conventional staining methods by the intrinsic characteristics of the method. CARS does not require labeling because it is highly specific to molecular compounds which…

Super-Resolution GSDIM Microscopy

The nanoscopic technique GSDIM (ground state depletion microscopy followed by individual molecule return) provides a detailed image of the spatial arrangement of proteins and other biomolecules within…
Scheme of a 2D mosaic scan. Drosophila melanogaster (eye section)

Mosaic Images

Confocal laser scanning microscopes are widely used to create highly resolved 3D images of cells, subcellular structures and even single molecules. Still, an increasing number of scientists are…
An ID card which has been tampered with by counterfeiters who inserted a hologram.

Is that Document Genuine or Fake? How do They Identify Fake Documents?

This article shows how forensic experts use microscopy for analysis to identify counterfeit, fake documents, such as ID cards, passports, visas, certificates, etc. Then they know if it is genuine or…
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