Electron Microscopy

Image resolution in standard light microscopy is limited by the wavelength of light and is incapable of resolving structures of less than 200 nm. However, the resolution of electron microscopy is limited by biological sample preparation and goes beyond 1 nm.

Transmission Electron Microscopy (TEM) is used to investigate ultrastructure of thin samples (limited by the penetration of electron beam): flat cells, nano-particles, biological tissues embedded into polymers etc.

Scanning Electron Microscopy (SEM) is used to investigate fine structure on surfaces of biological and non-biological objects.  

Applications

Research topics include detection of viruses for human patients, inflammation, oncology, cardiovascular biology, morphology of zebrafish  retina, bacteriology, food sciences, polymer films for biosensors, nano-particle toxicity in vitro and artificial joints.

EM systems at NUIG


Hitachi S-4700 SEM

Hitachi S-2600 SEM

Hitachi 7500 TEM

Hitachi 7000 TEM

Ancillary Equipment

Critical Point Dryer

Sputter Coater

Ultra Microtome 1

Ultra Microtome 2