Science Lab

Science Lab

Science Lab

Bienvenue sur le portail de connaissances de Leica Microsystems. Vous y trouverez des recherches scientifiques et du matériel didactique sur le thème de la microscopie. Le portail aide les débutants, les praticiens expérimentés et les scientifiques dans leur travail quotidien et leurs expériences. Explorez les didacticiels interactifs et les notes d'application, découvrez les bases de la microscopie ainsi que les technologies de pointe. Faites partie de la communauté Science Lab et partagez votre expertise.
3D rendering of a mouse beta cell with mitochondria (blue), insulin SGs (orange), microtubules (red), nucleus (yellow), and plasma membrane (transparent).

High-Pressure Freezing Protocols for Ultrastructural 3D EM

High pressure freezing (HPF) can help preserve hydrated cells and tissues close to their biological state at the moment of immobilization, supporting more reliable ultrastructural interpretation than…
Claudia Mayrhofer ZFE Graz

Ultramicrotome UC Enuity in Practice: Stable 15 nm Sections at ZFE

After using the UCT and UC6 ultramicrotomes, Claudia Mayrhofer calls UC Enuity a leap in stability—so robust that vibrations and temperature shifts don’t spoil sections, even with multiple users. Auto…
Sectioning resin-embedded sambles

Ultramicrotomy eBook: Targeting, Trimming & Alignment

Ultramicrotomy is evolving rapidly, and today’s microscopes demand high‑quality sections, precise targeting, and reproducible workflows. This eBook brings together expert application notes, automated…
TEM micrographs of polymer sections. Left: Poly(styrene)-b-poly(isoprene). Right: Poly(styrene)-b-poly(methyl methacrylate).

Ultramicrotome Sectioning of Polymers for TEM Analysis

We demonstrate the capabilities of the UC Enuity ultramicrotome from Leica Microsystems for preparing ultrathin sections of polymer samples under both ambient and cryogenic conditions. By presenting…
Final Segmentation of organelles in Trichomonas species. Magenta – costa, light blue – hydrogenosomes, turquoise – ER, red – vacuoles, yellow – axostyle, green – Golgi apparatus. Sample courtesy of Isabelle Guerin-Bonne, Low Kay En, Electron Microscopy Unit, Yong Loo Lin School of Medicine, National University of Singapore. Scale bar: 1 µm.

Volume EM and AI Image Analysis

The article outlines a detailed workflow for studying biological tissues in three dimensions using volume-scanning electron microscopy (volume-SEM) combined with AI-assisted image analysis. The focus…

Integrated Serial Sectioning and Cryo-EM Workflows for 3D Biological Imaging

This on-demand webinar explores how integrated tools can support electron microscopy workflows from sample preparation to image analysis. Experts Andreia Pinto, Adrian Boey, and Hoyin Lai present the…
Mouse brain slice which was immunostained with GFAP-A647 and imaged using a THUNDER Imager Tissue. Courtesy of H. Xu, University of Pennsylvania, Philadelphia, USA.

Neurosciences

Vous souhaitez une meilleure compréhension des maladies neurodégénératives ou vous étudiez le fonctionnement du système nerveux ? Découvrez comment vous pouvez faire des percées importantes grâce aux…
UC Enuity with Diatome diamond knife.

Mastering Polymer Sectioning with Helmut Gnaegi

When it comes to ultramicrotomy, few names carry the weight of Helmut Gnaegi. As co-founder of Diatome, a global leader in diamond knife technology, Helmut has spent decades refining the art and…
C. elegans embedded in Lowicryl® HM20; pharynx showing red fluorescence (mCherry). The overview shows a front view onto the resin capsule formed by the bottom of a flow-through chamber of the EM AFS2. The capsule was pretrimmed manually. The blockface was trimmed automatically using the AutoTrim function of UC Enuity guided by fluorescence of the worm. Edge length of both squares in relation to the images is 250 µm.

How Fluorescence Guides Sectioning of Resin-embedded EM Samples

Electron microscopes, including transmission electron microscopes (TEM) and scanning electron microscopes (SEM), are widely utilized to gain detailed structural information about biological samples or…
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