Services of the Laboratory of Electron Microscopy

Our equipment and methods can be applied in various projects in medical and biological research as well as in materials sciences.

Typical samples studied in our facility
  • tissue pieces
  • cells
  • bacteria
  • viruses
  • macromolecules
  • polymers
  • nanoparticles 
Available techniques
  • Plastic embedding and ultrathin sectioning for conventional TEM
  • Correlative light and electron microscopy (CLEM)
  • Immuno electron microscopy coming in autumn of 2019
  • Electron tomography
  • Negative staining
Specimen preparation service

Our laboratory technicians prepare samples for imaging with different EM-techniques. The researcher collects and fixes the samples and brings them to our specimen preparation laboratory for further processing. We can prepare specimens for both transmission (TEM) and scanning (SEM) electron microscopies. 

EM imaging

We train every user individually to TEM operation and provide technical support during imaging. SEM imaging is arranged in cooperation with other local units.


We help researchers in all questions related to electron microscopy. We give help in all steps of an EM project from experiment planning to result interpretation.​

User information

New users willing to use EM are asked to contact laboratory engineer Markus Peurla.

Project form

A project form must be filled before starting any work. The form must be signed by the person responsible for the costs of the work.

Collection of samples for EM

Download instructions for sample collection.

Fixative stock solutions are available in the specimen preparation laboratory.

Sample form must be returned together with the samples.


User fees.

TEM bookings

You can book the transmission electron microscope (TEM) in Open IRIS. It is found under the Medisiina Imaging Center.