Leica Microsystems: 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！

Video: The White Light Laser – How to Effectively Excite Multiple Fluorophores with a Single Light Source

The Leica White Light Laser produces a continuous spectral output between the wavelengths of 470 and 670 nm. It allows you to select 8 excitation lines from 3 trillion unique combinations for…

Workflows & Protocols: How to Use a Leica Laser Microdissection System and Qiagen Kits for Successful RNA Analysis

Laser Microdissection (LMD) allows isolating individual cells or chromosomes and is a well established technique for sample preparation prior downstream analysis of the nucleic acid content via PCR or…

Schematic graph of the light path in a Spalt-Ultramikroskop.

Confocal and Light Sheet Imaging

Optical imaging instrumentation can magnify tiny objects, zoom in on distant stars and reveal details that are invisible to the naked eye. But it notoriously suffers from an annoying problem: the…

Universal PAINT – Dynamic Super-Resolution Microscopy

Super-resolution microscopy techniques have revolutionized biology for the last ten years. With their help cellular components can now be visualized at the size of a protein. Nevertheless, imaging…

冷冻透射电子显微镜的投入式冷冻技术：应用

低温下观察完全含水、未染色样本的透射电子显微镜（cryo TEM）是结构生物学、细胞生物学、药理学和其他科学分支的通用工具。通过将标本放入冷冻剂中进行超快速冷冻（投入式冻结）是一种常用的方法，用于制备在透射电镜观察的各种标本。本文是对投入式冷冻的补充，介绍了在不同领域使用投入式冷冻标本的三种冷冻TEM应用。

FusionOptics in Neurosurgery and Ophthalmology – for a Larger 3D Area in Focus

Neurosurgeons and ophthalmologists deal with delicate structures, deep or narow cavities and tiny structures with vitally important functions. A clear, three-dimensional view on the surgical field is…

Glycerol Spraying/Platinum Low Angle Rotary Shadowing of DNA with the Leica EM ACE600 e-beam

Glycerol spraying/low angle rotary shadowing (Aebi and Baschong, 2006) is a preparation technique used in biology to visualize structures yielding insufficent contrast with other techniques, due to…

[Translate to chinese:] Alexander von Inostranzeff (1843–1919)

比对显微镜 125 年的发展历程

要科学准确地对两个物体进行光学比较，必须能够同时观察它们。特别是在比较只能借助光学放大系统才能观察到的微小物体时，更是如此。如果你只有一台显微镜，而且必须交替观察两个物体，那么你就需要有出色的记忆力，而且永远不能排除判断错误的风险，尤其是在检查结构、颜色或轮廓只有细微差别的物体时。这种认识促使圣彼得堡的地质学教授亚历山大-冯-伊诺斯特兰泽夫（Alexander von…

Preparation of Laser Microdissected Plant Cell and Tissue Material for Microchemical Analysis

Secondary plant metabolites are involved in various plant physiological and biochemical processes, allowing plants to interact successfully with their biotic and abiotic environment. Distribution…