Environmental SEM (ESEM)

Developed by: Centro Andaluz de Nanomedicina y Biotecnología BIONAND


Environmental SEM allows the observation of samples in a vacuum-free atmosphere. Water vapor is introduced into the chamber during the pumping process, allowing to reach chamber pressures as high as 2700 Pa. This pressure combined with a Peltier stage allow us to work at 100% humidity and thus be able to visualize fully hydrated samples and perform dynamic experiments through pressure changes, including hydration - dehydration sequences.


ESEM mode in FEI Quanta 250 FEG

Scanning Electron Microscope


  • Cellular characterization 
  • Tissue characterization
  • Biomaterials characterization 
  • Macromolecular complexes characterization

Juan Félix López


952 367 607