The IGC’s Advanced Imaging Unit offers state-of-the-art light microscopy and bioimaging services, housing 16 high-end systems with confocal/2photon, high-throughput, super-res & mesoscopy (light-sheet & OPT). Services include sample prep., and training with instrumentation & bioimage analysis (high-end workstations available with commercial & free software). The AIU is open-access and serves the IGC, academia and companies.
Location: Bartolomeu Dias wing
Contact: +351 214 464 539 @: [email protected]
Users of the AIU should observe the “General IGC Facilities usage” terms which can be consulted here (requires login in Agendo).
The IGC’s “code of conduct” also contains relevant information about the expected conduct at the facility.
How to avoid negligent use of the AIU?
Any negligent use should be promptly reported (by users and staff) to the facility head or staff, which will evaluate whether the user should be denied future booking and use. Agendo allows reporting “incidents” that should be used when such problems are detected. Examples of what may be considered negligent use:
- Forgetting to turn off the instruments or critical components such as fluorescent lamps & lasers, when no one else is booked after (check the calendar or ask staff before leaving),
- Failure to clean or report dirty optics or system malfunction to staff
- Repeatedly arriving late, skipping or deleting booked sessions without providing an explanation; using equipment without, or past, the time booked without informing the staff.
- Repeatedly booking on behalf of others.
- Attempting to use the system without training and previous authorisation from staff
- Attempting to alter the characteristics or functionality of the instruments, or parts, without previous training AND consent from the staff (eg removing/replacing objectives)
- Installing any software or connecting external disks/USB sticks to workstations
- Making use of the workstations and internet access for purposes other than checking protocols, system booking, acquiring, processing/analysing & transferring image datasets.
- Falsification of bioimage results or purposeful misrepresentation of bioimaging data.
What may constitute an intellectual contribution from AIU staff?
Granting equipment access, training and providing consumables, per se, DO NOT warrant co-authorship in publications from any of the facility staff.
Support from staff with acquisition of raw datasets (image data acquired “as is”, without pre-processing), opening and converting to other file generic formats, basic process & analysis procedures (eg, contrast enhancement, 2D measurements, basic segmentation and particle analysis) also DO NOT constitute a significant contribution that would warrant co-authorship in publications. Help with deconvolution and other basic forms of data restoration or pre-processing (eg. cleaning noise, linearization or background removal)vare also not considered significant intellectual contributions.
The following may constitute an intellectual contribution, and should be discussed (either in advance or a posteriori) with the facility head and staff member providing support:
- Implementation of novel (or uncommon/untested) protocols for sample preparation, image acquisition, processing and/or analysis.
- Custom-building of hardware or software (“Technical Development”)
- Obtaining a substantial amount of the images used in a publication (or the ones presented).
- Complex image feature enhancement or extraction, 3D/4D image segmentation/tracking, complex measurements (eg, those not available in ImageJ’s “particle analysis” or “set measurements”)
- Preparation of manuscript plates/figures or text (even if later they are altered by the researchers) - note that suggestions for Material & Methods are available at the website.
- Preparation of complex macros/scripts for automation of processing & analysis
- Performing statistical tests on bioimage derived data
- Preparation of complex 3D renderings & animations/illustrations
- Processing, segmenting and analysis of large volumes of data
- Implementation of tools not common in a facility or for which the staff are not trained
In these cases, the facility staff should be consulted before publication to make sure the methods/results are properly described and acknowledged. When co-authorship is warranted, the senior author should obtain the agreement of the imaging staff member regarding his/her contribution and the contents of the publication and be allowed to review & edit the relevant work being submitted to publication. When deemed necessary, the Facility users’ committee will be consulted to provide assistance in evaluating the significance of intellectual contributions.
Payment of imaging services is always due, even when co-authorship is warranted.
Acknowledging the AIU in publications?
All AIU users are requested to acknowledge the support of the AIU in their publications and communications involving any of our services, in order to guarantee future funding of the facility. There is a specific acknowledgement for each instrument, so please consult the appropriate SOP/user guide. In all cases, it should at least include the following: “We thank the support of IGC's Advanced Imaging Facility (AIU), especially [insert name of staff member(s) who helped], funded by PPBI-POCI-01-0145-FEDER-022122 (Lisboa 2020/FEDER/FCT; Portugal).
SERVICES & TECHNIQUES
Experimental design for imaging, cell / tissue staining; sample preparation and tissue clearing.
Diagnostics, repair and building optical systems.
Pending availability of staff and project demand.
ImageJ, QuPath; Imaris, Huygens, Amira and others - for more information please contact.
Laser scanning & spinning disk; Airyscan, Lightning & SORA available.
Intravital, SHG possible.
Multiposition; tile & stitching; live-imaging; well-plates.
Up to 8 per run.
Filming of embryos or organoids in vivo or acquisition of volumetric 3D images of meso and macro cleared samples, by light-sheet (fluorescent) or OPT (fluorescent or unlabeled).
SIM and Apotome.
Micro & meso - for CLEM see EMF.
Ablation, FRAP, FLIP, FRET(AB/SE).
Microscopy Primer (basics)
FPbase (fluorescence spectra)
Biii.org (bioimage analysis resources)
Sea4Bia (scripts/macros from PPBI facilities)
NEUBIAS Academy @Home (Image analysis tutorials)
Check the papers here.