Christoph Greb , Dr.
Christoph Greb studied cell biology, parasitology and virology at the Philipps University in Marburg. In the course of his diploma thesis and his dissertation at the local Institute for Cytobiology and Cytopathology he examined the vesicular transport of apically destined proteins in polarized epithelial cells utilizing biochemistry as well as TIRF and confocal microscopy. From December 2011 he was writing for the Leica Science Lab as a freelancer. After his engagement for Novartis Vaccines & Diagnostics he started as Scientific Writer for the widefield team of Leica Microsystems in October 2013.
Studying Virus Replication with Fluorescence Microscopy
The results from research on SARS-CoV-2 virus replication kinetics, adaption capabilities, and cytopathology in Vero E6 cells, done with the help of fluorescence microscopy, are described in this…
Introduction to Fluorescent Proteins
Overview of fluorescent proteins (FPs) from, red (RFP) to green (GFP) and blue (BFP), with a table showing their relevant spectral characteristics.
What is the Patch-Clamp Technique?
This article gives an introduction to the patch-clamp technique and how it is used to study the physiology of ion channels for neuroscience and other life-science fields.
Differential Interference Contrast (DIC) Microscopy
This article demonstrates how differential interference contrast (DIC) can be actually better than brightfield illumination when using microscopy to image unstained biological specimens.
Going Beyond Deconvolution
Widefield fluorescence microscopy is often used to visualize structures in life science specimens and obtain useful information. With the use of fluorescent proteins or dyes, discrete specimen…
Phase Contrast and Microscopy
This article explains phase contrast, an optical microscopy technique, which reveals fine details of unstained, transparent specimens that are difficult to see with common brightfield illumination.
Immersion Objectives
How an immersion objective, which has a liquid medium between it and the specimen being observed, helps increase the numerical aperture and microscope resolution is explained in this article.
Microscope Resolution: Concepts, Factors and Calculation
This article explains in simple terms microscope resolution concepts, like the Airy disc, Abbe diffraction limit, Rayleigh criterion, and full width half max (FWHM). It also discusses the history.
How to Perform Dynamic Multicolor Time-Lapse Imaging
Live-cell imaging sheds light on diverse cellular events. As many of these events have fast dynamics, the microscope imaging system must be fast enough to record every detail. One major advantage of…
Precise Spatial Proteomic Information in Tissues
Despite the availability of imaging-based and mass-spectrometry-based methods for spatial proteomics, a key challenge remains connecting images with single-cell-resolution protein abundance…
RNA Quality after Different Tissue Sample Preparation
The influence of sample preparation and ultraviolet (UV) laser microdissection (UV LMD) on the quality of RNA from murine-brain tissue cryo-sections is described in this article. To obtain good…
Mechanically Stressed Cells under the Microscope
Traumatic brain injury, skin scarring, or fibrotic heart remodeling are examples for mechanical stress which cells and tissues are exposed to. In this article, the authors introduce a non-invasive,…
3D Tissue Imaging: From Fast Overview To High Resolution With One Click
3D Tissue imaging is a widespread discipline in the life sciences. Researchers use it to reveal detailed information of tissue composition and integrity, to make conclusions from experimental…
How To Perform Fast & Stable Multicolor Live-Cell Imaging
With the help of live-cell imaging researchers gain insights into dynamic processes of living cells up to whole organisms. This includes intracellular as well as intercellular activities. Protein or…
Multi-Color Caspase 3/7 Assays with Mica
Caspases are involved in apoptosis and can be utilized to determine if cells are undergoing this programmed cell death pathway in so-called caspase assays. These assays can be run by e.g. flow…
Fluorescent Dyes
A basic principle in fluorescence microscopy is the highly specific visualization of cellular components with the help of a fluorescent agent. This can be a fluorescent protein – for example GFP –…
Developing Heart Pacemaker Cells from Cardiac Spheroids
During the last decade, 3D cell culture has been established as a more realistic model compared to classical 2D culture systems. Cells can develop into miniature 3D objects, so called spheroids, which…
Studying Cell Division
Cell division is a biological process during which all cellular components must be distributed among the daughter cells. The division process requires firm coordination for success. Microscopy is…