SEM
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Our Techniques

Introduction

Electron Microscopy (EM) is an advanced imaging technique that uses a focused beam of electrons to scan the surface of a sample, producing high-resolution images and detailed surface information. The CAF Electron Microscopy Unit offers a wide range of services and techniques across both material and biological sciences.

 

Our services include standard SEM imaging, as well as advanced methods such as Scanning Transmission Electron Microscopy (STEM), which allows for high-resolution imaging of nanoparticles (metallic, biological, microbial, etc.) and thin sections, producing TEM-like images.

Furthermore, by collaborating with our advanced Light Micrsocopy Unit, we can produce Correlated Confocal Light and Electron (CLEM) Images.

The unit is also equipped for Energy Dispersive Spectroscopy (EDS) and Wavelength Dispersive Spectroscopy (WDS), enabling elemental and compositional analysis.  

Cathodoluminescence (CL) Microscopy, a technique that provides nanoscale insights into a material’s optical properties, structural defects, and composition.

Notably, this facility houses the only Volume Electron Microscopy system on the African continent, featuring Serial Block-Face SEM (SBF-SEM) for 3D volumetric imaging of biological samples at nanoscale resolution. Furthermore, the unit offers variable pressure SEM, which allows for imaging of samples in their natural, uncoated state—ideal for sensitive or non-conductive materials.

Request a Quotation

Please follow the link to generate an online analysis request and quotation. After you click the submit button a quotation will be emailed to you. 

Sample Preparation

Please download and follow the different sample preparations required for the different techniques. 

Brochures

Please click to download our brochures to see what laboratory services we offer in the different fields of interest.