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.
Fixed patient-derived neuroendocrine tumor organoids labeled with DAPI (cyan) and phalloidin (magenta), imaged using Viventis SCAPE; scale bar 50μm. Courtesy of Marina Cuenca and Heleen Jungen (Dayton lab), EMBL Barcelona.

What’s the Best Organoid Imaging Approach for Early Drug Discovery?

Organoids and other complex in vitro models (CIVMs) are becoming increasingly important in early drug discovery and translational research, driven by the need for more predictive, human-relevant data…
Waffle method lamella preparation and cryo-ET results - Representative workflow and results of lamella preparation from a vitrified C. elegans L1 larva using the waffle method. Image courtesy: Prof. Dr. Jürgen M. Plitzko - doi.org/10.1038/s41592-023-02113-5-

Waffle Method Workflow: From HPF to Cryo-ET Lamellae

Waffle freezing provides an HPF-based route to cryo-ET sample preparation. This workflow guide follows the process from grid and carrier assembly to vitrification, cryo-FIB milling, lamella…
Large field of view (FOV) 2D slices of a 1 mm diameter midbrain neural organoid stained with DAPI (blue, nuclear stain), β-tubulin (green, neuronal stain), and GFAP (red, astrocyte stain). Acquired on THUNDER Imager Cell with 10x magnification. Left: Raw widefield image, Right: THUNDER cleared image. Scale bar 400 μm. Sample courtesy of Dr Tanya Singh, University of Oxford, UK.

Fast, High-Contrast Widefield Imaging of Optically Challenging Samples

Live‑cell imaging of large, complex biological samples often requires large fields of view, sub-cellular resolution, high-sensitivity, and fast acquisition – all while maintaining low illumination…
Hunched working position without a microscope (left) and upright neutral posture achieved with the M320 dental microscope (right).

Dental Loupes vs Microscopes: Exploring Visualization Options in Dentistry

Dental professionals often ask: “Should I use dental loupes or invest in a microscope?” This article explores the key differences between dental microscopes and dental loupes, focusing on…
Low-input spatial proteomics workflow for megakaryocyte isolation from bone marrow.

Spatial Proteomics Workflow in Blood Cancer (MPNs)

Megakaryocytes play a central role in the biology of myeloproliferative neoplasms (MPNs), yet their in vivo proteomic characterization remains a major challenge due to low abundance and disrupted…
The M320 dental microscope.

Six Features to Consider when Choosing a Dental Microscope

The dental surgical microscope has become increasingly important for high-quality and successful dental medicine, particularly in the field of endodontics. A dentist can conduct micro-invasive…
Long-term in toto imaging of FUCCI2 intestinal organoids.

Multiscale Imaging of Organoids: High Content to Light Sheet

Learn multiscale organoid imaging: fixed high content phenotyping, gentle dual view light sheet, and reproducible pipelines that turn 3D data into insights.
Ribbon diagram of a donor (D) and acceptor (A) molecule which participate in FRET (Förster resonance energy transfer).

What is FRET with FLIM or as it is usually known FLIM-FRET?

Förster resonance energy transfer (FRET) is a well-established fluorescence-based technique which is used to study molecular interactions. It is useful for the analysis of protein-DNA and…
Time-lapse imaging of calcium in cells using the ratiometric calcium indicator Fura-2.

Ratiometric Imaging and Analysis of Ion Concentration in Cells

Many cellular functions depend on the dynamic balance of ions, electric potentials, and pH between the cytosol and surrounding extracellular space. Changes in these values affect cellular function.…
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