显微镜知识库

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！

67-hour, multi-position time-lapse of mouse intestinal organoids expressing the cell cycle reporter FUCCI2 (hGem-mVenus and hCdt1-mCherry).

Focus on Long-Term Imaging in 3D with Light Sheet Microscopy

Long-term 3D imaging reveals how complex multicellular systems grow and develop and how cells move and interact over time, unlocking critical insights into development, disease, and regeneration.…

5 hour time-lapse maximum intensity projection of a zebrafish embryo along the z-axis at 3 days post fertilization. Left: microglia cells. Right: bright field channel. Courtesy of Prof. Francesca Peri, University of Zurich, Switzerland.

Capturing Developmental Dynamics in 3D

This application note showcases how the Viventis Deep dual-view light sheet microscope was successfully used by researchers for exploring high-resolution, long-term imaging of 3D multicellular models…

Developing embryos of different species at different stages during the elongation of their posterior body axis, from left to right in developmental time. The labelled regions in red depict a region of undifferentiated cells called the tailbud, with the corresponding region generated from that tissue shaded in grey. Upper row: lamprey; middle row: catshark; bottom row, zebrafish. This figure has been adapted from the following publication: Steventon, B., Duarte, F., Lagadec, R., Mazan, S., Nicolas, J.-F., & Hirsinger, E. (2016). Species tailoured contribution of volumetric growth and tissue convergence to posterior body elongation in vertebrates. Development, 2016. 143(10):1732-41

如何研究胚胎发育中的基因调控网络

欢迎参加由 Ben Steventon 博士与 Andrea Boni 博士主讲的点播网络研讨会，探索光片显微镜如何革新发育生物学研究。这项先进成像技术能对三维样本进行高速、大体积的活体成像，且光毒性低。通过用户案例了解光片显微镜如何深化我们对肠道类器官与脑类器官发育的认知，并深入解析徕卡显微系统 Viventis Deep 显微镜的技术原理及其在长时间成像中的应用。

Intestinal organoids label with FUCCI reporter to follow cell cycle dynamics. Courtesy of Franziska Moos. Liberali lab. FMI Basel (Switzerland).

双视野光片显微镜，适用于大型多细胞系统

展示复杂多细胞系统的动态是生物学中的一个基本目标。为了应对在大型时空尺度上进行活体成像的挑战，作者在《自然·方法》杂志上发表的一篇论文中介绍了一种开放式多样本双视野光片显微镜。研究发现，Viventis LS2 Live显微镜在以单细胞分辨率成像大型样本方面取得了显著进展。

Spheroid stained with Cyan: Dapi nuclear countertain; Green AF488 Involucrin; Orange AF55 Phalloidin Actin; Magenta AF647 CK14.

基于人工智能的表型药物筛查解决方案

本次网络研讨会将全面介绍使用三维细胞培养进行表型药物筛选所遇到的问题、可能的解决方案及规划与执行策略。

免疫细胞在组织样品中的共聚焦成像

在本次网络研讨会中，您将探索如何使用共聚焦显微镜对组织样品进行10色成像，并了解这一技术如何有助于评估皮肤免疫状况。

Dual color volume rendering of Drp1 oligomers (green) and mito OM (red) in a live U2OS cell

多色四维超分辨光片显微镜

人工智能显微术研讨会主要关注和讨论显微术和生物医学成像领域的最新人工智能技术和工具。在该科学演示中，Yuxuan Zhao展示了如何通过渐进式深度学习策略并结合“双环调制的SPIM”设计改善活细胞中的细胞器三维成像。

3D-volume-rendered light-sheet microscope image of a spheroid showing depth coding in different colors.

利用DLS对细胞球中的抗癌药物摄取进行成像

细胞球3D细胞培养模型模拟了活组织的生理和功能，使其成为研究肿瘤形态和筛选抗癌药物的有用工具。药物AZD2014是一种公认的哺乳动物雷帕霉素靶蛋白（mTOR）通路抑制剂[1]。mTOR的异常激活会促进肿瘤生长和转移，导致AZD2014进入临床试验作为抗癌分子。其具体的抗肿瘤机制尚不清楚。

Understanding Motor Sequence Generation Across Spatiotemporal Scales

We have developed a microscopy-based pipeline to characterize a developmentally critical behavior at the pupal stage of development, called the ecdysis sequence. We study brain-wide neuronal activity…