Science Lab

Benvenuti nel portale delle conoscenze di Leica Microsystems. Troverete materiale didattico e di ricerca scientifica sul tema della microscopia. Il portale supporta i principianti, i professionisti esperti e gli scienziati nel loro lavoro quotidiano e negli esperimenti. Esplorate i tutorial interattivi e le note applicative, scoprite le basi della microscopia e le tecnologie di punta. Entrate a far parte della comunità di Science Lab e condividete la vostra esperienza.

Electron microscope (EM) image of a cross section of C. elegans (roundworm). Courtesy of T. Müller-Reichert, MPI-CBG, Dresden, Germany and K. McDonald, University of California, Berkeley, USA.

Brief Introduction to High-Pressure Freezing for Cryo-Fixation

Preparation of biological specimens for electron microscopy (EM) often requires cryo-fixation which does not introduce significant structural alterations of cellular constituents. A common method used…

Mouse hippocampus brain slice on a grid after HPF using the “Waffle Method”.

The “Waffle Method”: High-Pressure Freeze Complex Samples

This article describes the advantages of a special high pressure freezing method, the so-called “Waffle Method”. Learn how the “Waffle Method” uses EM grids as spacers for high-pressure freezing,…

Complete camera overview of EM grid recorded with 3 channels. Inserts displaying the positions, where superresolved 3D confocal images were recorded. 3D renderings of these positions are shown in the zoomed inserts. Fluorescence channels (nuclei by Hoechst, blue; mitochondria by MitoTracker Green, green; lipid Droplets by Bodipy and Crimson Beads, red). Width of a grid square is 90 ?m, width of a grid bar is 35 ?m. Samples kindly provided by Ievgeniia Zagoriy, Mahamid-Group, EMBL Heidelberg, Germany.

From Bench to Beam: A Complete Correlative Cryo Light Microscopy Workflow

In the webinar entitled "A Multimodal Vitreous Crusade, a Cryo Correlative Workflow from Bench to Beam" a team of experts discusses the exciting world of correlative workflows for structural biology…

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…

Projection of a confocal z-stack. Sum159 cells, human breast cancer cells kindly provided by Ievgeniia Zagoriy, Mahamid Group, EMBL Heidelberg, Germany. Blue–Hoechst - indicates nuclei, Green–MitoTracker mitochondria, and red–Bodipy - lipid droplets

New Imaging Tools for Cryo-Light Microscopy

New cryo-light microscopy techniques like LIGHTNING and TauSense fluorescence lifetime-based tools reveal structures for cryo-electron microscopy.

How to Successfully Perform Live-Cell CLEM

The Leica Nano workflow provides a streamlined live-cell CLEM solution for getting insight bout structural changes of cellular components over time. Besides the technical handling described in the…

How to Successfully Implement Coral Life

The live-cell  CLEM workflow allows you to capture dynamic information related to a relevant biological process as it happens and put these observations into their ultrastructural context. The Leica…

HeLa Kyoto cells (HKF1, H2B-mCherry, alpha Tubulin, mEGFP). Left image: Maximum projection of a z-stack prior to ICC and LVCC. Right image: Maximum projection of a mosaic z-stack after ICC and LVCC.

How to Improve Live Cell Imaging with Coral Life

For live-cell CLEM applications, light microscopy imaging is a critical step for identifying the right cell in the right state at the right time. In this article, Leica experts share their insights on…

The Cryo-CLEM Journey

This article describes the Cryo-CLEM technology and the benefits it can provide for scientists. Additionally, some scientific publications are highlighted. Recent developments in cryo electron…