Science Lab

Learn. Share. Contribute. The knowledge portal of Leica Microsystems. Find scientific research and teaching material on the subject of microscopy. The portal supports beginners, experienced practitioners and scientists alike in their everyday work and experiments. Explore interactive tutorials and application notes, discover the basics of microscopy as well as high-end technologies. Become part of the Science Lab community and share your expertise.

Fast, High-quality Vitrification with the EM ICE High Pressure Freezer

The EM ICE High Pressure Freezer was developed with a unique freezing principle and uses only a single pressurization and cooling liquid: liquified nitrogen (LN2). This design enables three major…

Cryo FIB lamella - Overlay of SEM and confocal fluorescence image. Target structure in yeast cells (nuclear pore proteine Nup159-Atg8-split Venus, red) marked by an arrow. Scale bar: 5 µm. Alegretti et al., Nature 586, 796-800 (2020).

Targeting Active Recycling Nuclear Pore Complexes using Cryo Confocal Microscopy

In this article, how cryo light microscopy and, in particular cryo confocal microscopy, is used to improve the reliability of cryo EM workflows is described. The quality of the EM grids and samples is…

Investigating Synapses in Brain Slices with Enhanced Functional Electron Microscopy

A fundamental question of neuroscience is: what is the relationship between structural and functional properties of synapses? Over the last few decades, electrophysiology has shed light on synaptic…

Mouse kidney section with Alexa Fluor™ 488 WGA, Alexa Fluor™ 568 Phalloidin, and DAPI. Sample is a FluoCells™ prepared slide #3 from Thermo Fisher Scientific, Waltham, MA, USA. Images courtesy of Dr. Reyna Martinez – De Luna, Upstate Medical University, Department of Ophthalmology.

The Power of Pairing Adaptive Deconvolution with Computational Clearing

Learn how deconvolution allows you to overcome losses in image resolution and contrast in widefield fluorescence microscopy due to the wave nature of light and the diffraction of light by optical…

Improvement of Imaging Techniques to Understand Organelle Membrane Cell Dynamics

Understanding cell functions in normal and tumorous tissue is a key factor in advancing research of potential treatment strategies and understanding why some treatments might fail. Single-cell…

Ion Beam Milling Guide: Enhancing Surface Quality for High-Resolution Imaging and Analysis

In this article you can learn how to optimize the preparation quality of your samples by using the ion beam etching method with the EM TIC 3X ion beam milling machine. A short introduction of the…

EM Sample Preparation Coating, Etching and Fracturing

Sample Preparation for EM: A Practical Guide to Coating and Freeze-Fracturing

From coatings done in a low-vacuum sputter coating machine at room-temperature to those done in high-vacuum and even at cryogenic temperatures, Leica coating solutions cover a large range of needs.…

Studying Pulmonary Fibrosis

The results shown in this article demonstrate that fibrotic and non-fibrotic regions of collagen present in mouse lung tissue can be distinguished better with polarized light compared to brightfield.…

Advancing Cell Biology with Cryo-Correlative Microscopy

Correlative light and electron microscopy (CLEM) advances biological discoveries by merging different microscopes and imaging modalities to study systems in 4D. Combining fluorescence microscopy with…