Electron Microscopy – Gimm Electron Microscopy – Gimm

Electron Microscopy

The Electron Microscopy Facility (EMF) is a research platform focused on biological sample processing and imaging for electron microscopy.

The facility provides:

  • Electron microscopy services for research, diagnosis and industrial applications
  • Tailored methods including optimization and development fitted to research questions
  • Technical training for users, students and staff
  • Access to specialized equipment

Moreover, our platform works in an open and collaborative way with other facilities enabling the implementation of multidisciplinary projects that boosts the scientific knowledge that could be extracted from a single sample, e.g. Correlative Light-Electron Microscopy (CLEM) methodologies with the collaboration of Light Microscopy and Histopathology platforms. The Electron Microscopy facility also works with other society partners promoting access to basic and advanced electron microscopy techniques to all and for all.

Facility Location: GIMM – Oeiras Campus, Main Building – Marco Polo Wing

Contact: +351 214 464 676 | emfacility@igc.gulbenkian.pt

General Contacts

 Discovery Research Platforms
 Oeiras
  • Telephone

    00351 214 464 676

  • Envelope

    emfacility@igc.gulbenkian.pt

Electron Microscopy info

To start a project at the Electron Microscopy Facility, send an email to the facility general email:

emfacility@igc.gulbenkian.pt with the information below.

 

  • User and/or Principal Investigator name, contact information and affiliation
  • Project main objective
  • Sample type and, if applicable, the ultrastructure to be analyzed (e.g. nucleus, cell

membrane, ribosomes, Golgi complex)

  • Relevant literature, such as papers or book chapters, with general information and

electron microscopy methods about the sample of interest or similarA project meeting will be booked to discuss the experimental plan and project’s feasibility

regarding time, costs and equipment availability.

 

Attention that:

  • The project meeting is not charged, however after the start of the project all users will

be charged for consumables, equipment usage, training and technical assistance. A

price list is available upon request and a quote with an estimation of cost will be given

after the experimental set-up has been agreed.

  • The facility is open to work with internal and external researchers and with industrial

users. However, priority if given to users from the Gulbenkian Institute for Molecular

Medicine (GIMM).

  • Chemical Processing: manual sample fixation, staining, dehydration, infiltration and

embedding using chemical preservation methods.

  • Microwave Processing: manual sample fixation, staining, dehydration, infiltration and

embedding using chemical preservation methods with the help of microwave radiation

for improved chemical penetration into samples and reduced protocol duration.

  • High Pressure Freezing – Freeze Substitution: sample fixation, staining, dehydration,

infiltration and embedding using cryo preservation methods.

  • Negative Staining: Surface contrast shadowing for isolated samples (e.g. bacteria,

viruses, proteins).

  • Immunolabeling: Detection and localization of structures (antigens) within a cell or

tissue capable of binding to an antibody. The detection is made with particles visible

under the electron beam (e.g. gold or silver particles).

  • Ultra-Sectioning: Sections made in the nanometer scale under Room-Temperature or

Cryo Conditions.

  • Transmission Electron Microscopy Imaging: Ultrastructure observation of samples using

several techniques (e.g. single images, montages, tomography).

  • Scanning Electron Microscopy Preparation and Imaging: Preparation of samples for

scanning electron microscopy and imaging in collaboration with the International

Iberian Nanotechnology Laboratory (INL).

  • Image Analysis: Training of users for reconstruction of tomography, montage or serial

acquisitions in collaboration with the Bioimaging facility at GIMM.

  • Multidisciplinary Projects: Correlative Light-Electron Microscopy (CLEM) that enables

the correlation of the same structure in the same sample by light and electronmicroscopy in collaboration with the Bioimaging and the Histopathology facility at

GIMM.

  • FEI Tecnai G2 Spirit BioTWIN Transmission Electron Microscope 120 kV
  • Hitachi H-7650 Transmission Electron Microscope 120 kV
  • Leica UC7 / FC7 Ultramicrotome (2 available)
  • Leica UC7 Ultramicrotome
  • Wohlwend Compact 2 High Pressure Freezer
  • Leica AFS2 with EM FSP Robot
  • PELCO Biowave Pro+ Sample Processing Microwave system with SteadyTemp Pro
  • Q150T ES High Vacuum Carbon/Metal Coater
  • PELCO EasyGlow Glow Discharge System

 

All electron microscopy equipment is located at GIMM – Oeiras Campus. 

Equipment is available for booking 7 days in advance via online booking system (Agendo) for trained researchers during facility operation hours (Monday to Friday – from 09:30 to 17:30). An extended period of usage may be possible with at least 72 hours’ notice to facility staff.

Training in each system is mandatory for independent usage, even for researchers with previous experience. Cancellations or modifications to bookings are allowed 24 hours before the reserved booking time. Users that do not show will be charged fully for their booking time.

Each piece of equipment has a logbook that must be used to record the start and end time for each instrument session. Any problems encountered during usage should be documented in the logbook and informed to the facility staff.

All the work developed at GIMM Electron Microscopy Facility must be acknowledged in

publications and formal presentations.

 

A suggested template example for acknowledgements is:

“We acknowledge <insert team member name> from the Electron Microscopy Facility at

the Gulbenkian Institute for Molecular Medicine for <insert how we helped you e.g.

technical expertise, sample processing, and/or imaging>. ”

A suggested template example for material and methods is:

“The <insert the techniques performed at GIMM-EMF> were performed at the Electron

Microscopy Facility at the Gulbenkian Institute for Molecular Medicine”

If facility staff have done extensive work in sample preparation and/or data analysis and have substantially contributed to the project success via significant experimental design, authorship should be considered and discussed on a case-by-case basis.