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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！
Block-face created by automatic trimming under fluorescence. Mammalian cells of interest, stained with CellTrackerTM Green are visualized within the block-face using the UC Enuity equipped with the stereo microscope M205 FA. In the background a carbon finder grid in black is visible. All samples in the article are created by Felix Gaedke, PhD, CECAD, Cologne, Germany.

How to Automatically Obtain Fluorescent Cells of Interest in a Block-face

Block-face created by automatic trimming under fluorescence. Mammalian cells of interest, stained with CellTrackerTM Green are visualized within the block-face using the UC Enuity equipped with the…
Image of a tartaric-acid crystal taken with polarization microscopy. Tartaric acid, a diprotic, aldaric carboxylic acid, is a naturally occurring organic compound notably found in grapes.

偏振光显微观察

偏光显微镜通常应用于材料科学和地质学领域，根据矿物的折射特性和颜色来识别矿物。在生物学中，偏光显微镜通常用于晶体等双折射结构的识别或成像，或用于植物细胞壁中纤维素和淀粉粒的成像。

A Guide to Spatial Biology

What is spatial biology, and how can researchers leverage its tools to meet the growing demands of biological questions in the post-omics era? This article provides a brief overview of spatial biology…
Image of a 12-μm thick brain section, which was stained with Toluidin blue, before dissection. It was taken with a microscope using a 63x objective.

An Introduction to Laser Microdissection

The heterogeneity of histological and biological specimens often requires isolation of specific single cells or cell groups from surrounding tissue before molecular biology analysis can be carried…
[Translate to chinese:] Mouse brain (left) microdissected with a 10x objective (upper right). Inspection of the collection device (lower right).

激光微切割（LMD）促进的分子生物学分析

使用激光微切割（LMD）提取生物分子、蛋白质、核酸、脂质和染色体，以及提取和操作细胞和组织，可以深入了解基因和蛋白质的功能。它在神经生物学、免疫学、发育生物学、细胞生物学和法医学等多个领域有广泛应用，例如癌症和疾病研究、基因改造、分子病理学和生物学。LMD 也有助于研究蛋白质功能、分子机制及其在转导途径中的相互作用。
[Translate to chinese:] Image of murine dopaminergic neurons which have been marked for laser microdissection (LMD).

利用激光显微切割（LMD）在空间背景下分离神经元

在阿尔茨海默病之后，帕金森病是第二常见的进行性神经退行性疾病。在首发症状出现之前，中脑中高达70%的多巴胺释放神经元已经死亡。本文描述了如何使用现代激光显微切割（LMD）方法帮助解决帕金森病之谜。研究涉及在空间背景下分离和分析神经元。这些细胞来自帕金森病患者的死后黑质组织样本，以便深入了解该病的分子机制。
Region of a patterned wafer inspected using optical microscopy and automated and reproducible DIC (differential interference contrast). With DIC users are able to visualize small height differences on the wafer surface more easily.

6英寸晶圆检测显微镜：可靠观察细微高度差异

本文介绍了一种配备自动化和可重复的DIC（微分干涉对比）成像的6英寸晶圆检测显微镜，无论用户的技能水平如何。制造集成电路（IC）芯片和半导体组件需要进行晶圆检测，以验证是否存在影响性能的缺陷。这种检测通常使用光学显微镜进行质量控制、故障分析和研发。为了有效地可视化晶圆上结构之间的小高度差异，可以使用DIC。
[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。
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