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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

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！
[Translate to chinese:] Camera image during auto alignment. The feedback lines indicate if the correct edges in the image are detected. Green: Vertical center line; Magenta: Upper edge of the light gap; White: Lower edge of the light gap (not visible here, falling together with red line); Red: Knife edge; Blue: Left and right edge of the block face being automatically detected.

高质量超薄切片：样品与切片刀自动对齐

超薄切片技术是获取样品切片的最常用方法。在室温条件制备时，将样品小块嵌入环氧树脂中，然后通过修剪去除多余的树脂，并使用玻璃刀或金刚石刀将样品切成厚度为50-100纳米之间的薄片。
[Translate to chinese:] Section ribbons with increasing section thickness - silver to purple ending in blue sections.

超薄获得高质量的超薄切片

UC Enuity能够应对这一挑战，提供厚度一致且高质量的切片。其用户友好的设计不仅简化了研究过程，还提高了可重复性，使研究者对所得到的结论更有信心。
[Translate to chinese:] Multicolor TauSTED Xtend 775 for Cell Biology applications that require nanoscopy resolution for multiple cellular components. Cells showing vimentin fibrils (AF 594), actin network (ATTO 647N), and nuclear pore basket (CF 680R). Sample courtesy of Brigitte Bergner, Mariano Gonzales Pisfil, Steffen Dietzel, Core Facility Bioimaging, Biomedical Center, Ludwig-Maximilians-University, Munich, Germany.

STED样品制备指南

这份指南旨在帮助用户优化受激发射损耗（STED）纳米成像的样品制备，特别是在使用徕卡微系统的STED显微镜时。它提供了单色STED成像用荧光标记的概述，并对其性能进行了评级。
An 8-color spectral unmixing result from a hyperspectral SRS (stimulated Raman scattering) dataset, showing the biochemically distinct structures of a fresh, untreated apple slice.

How to Prepare Samples for Stimulated Raman Scattering (SRS) imaging

Find here guidelines for how to prepare samples for stimulated Raman scattering (SRS), acquire images, analyze data, and develop suitable workflows. SRS spectroscopic imaging is also known as SRS…
Image of a Siemens star, where the diameter of the 1st black line circle is 10 mm and the 2nd is 20 mm, taken via an eyepiece of a M205 A stereo microscope. The rectangles represent the field of view (FOV) of a Leica digital camera when installed with various C-mounts (red 0.32x, blue 0.5x, green 0.63x).

30000:1放大率到底意味着什么？

关于光学显微镜性能的一个重要标准是放大率。本报告将为数字显微镜用户提供有用的指南，以确定放大率值的有用范围。
[Translate to chinese:] Molecular structure of the green fluorescent protein (GFP)

荧光蛋白简介

本文概述了荧光蛋白及其光谱特性。随着 20 世纪 50 年代末荧光蛋白的发现，荧光显微技术发生了巨大变化。它始于 O. Shimomura 和来自水母（Aequorea victoria）的绿色荧光蛋白（GFP）[1]。后来出现了数百种 GFP…
Micrograph of dinoflagellate cells. Scale bar = 1 µm.

How Marine Microorganism Analysis can be Improved with High-pressure Freezing

In this application example we showcase the use of EM-Sample preparation with high pressure freezing, freeze substiturion and ultramicrotomy for marine biology focusing on ultrastructural analysis of…
Patch pipette touching a murine hippocampal neuron. Image courtesy of A. Aguado, Ruhr University Bochum, Germany.

什么是膜片钳技术？

离子通道的生理学一直是神经科学家感兴趣的一个重要话题。诞生于1970年代的膜片钳技术开启了电生理学家的新时代。它不仅可以对整个细胞进行高分辨率电流记录，还可以对切下的细胞膜片进行高分辨率电流记录。甚至可以研究单通道事件。然而，由于需要复杂且高灵敏的设备，广泛的生物学背景和高水平的实验技能，电生理学仍然是最具挑战性的实验室方法之一。
[Translate to chinese:] Neurons imaged with DIC contrast.

微分干涉对比（DIC）显微镜

本文阐释了在使用显微镜对未染色透明生物样本进行成像时，微分干涉对比法（DIC）为何是明场照明的绝佳方案。
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