2019 – Page 3 – The Live Cell Imaging facility

Super-Resolution spinning disk demo at the LCI!

Dear microscope freaks

How would you like to run some gentle live sample imaging with a 60x objective with:

an xy resolution of 120 nm without software tricks (or even better after deconvolution),
the great contrast of a true confocal,
82 frames per second,
or decide to bypass everything, go widefield and image at 100 frames per second with a super large field of view (220×220 um)?

Sounds good to me! 🙂

For the next 2 weeks you can do that with the new toy on demo at the LCI facility!

The beast is a new sort of spinning disk confocal and is called SoRa (Super-Resolution Optical Reassignment). It is a collaboration between Nikon and Yokogawa.

We even have 2 cameras to compare (Prime95B and BSI from Photometrics).

Oliver Garner from Bergman Labora will give a short online presentation of how SoRa works on Monday (29^th) at 13:00. The presentation is done remotely and broadcasted live. You can join the audience from the comfort of your office chair by following the instructions here (please try beforehand to make sure all works).

Interested in trying it? Please contact us.

A dream!!

Imaris workshop at the LCI: rescheduled to the 22nd of May :)

Imaris is a great image analysis software that is available to all the members of the Live Cell Imaging facility.

It is as easy to analyse 2D and 3D image files with Imaris. The software also allows you to make great multidimensional plots to present your data.

One can count objects inside objects (example number of vesicles per cell), measure shortest distances from one type of object to another (example distance from vesicles to the cell membrane), track cells even when they divide, trace neurons or blood vessels… all this in 3D, time, several colours.

On the 22nd of May, the LCI will host an Imaris workshop.

The morning seminar (held in Neo/DNA room) from 10-12 will be broadcasted for those who cannot join. Please follow the instructions on our website to follow the webinar.

In the afternoon, we will analyse the data of our users. Submit your images to DONTCHEVA Guergana (g.dontcheva(at)bitplane.com).

Call4Help: The image analysis help you have always dreamt of, totally for free!!! ???

After the success of the previous Call4Help session in February, BII (BioImage Informatics, the great image analysis at SciLife Uppsala) and your favorite microscopy facility (we hope) will run a new Call4Help next Tuesday 2^nd of April.

Anyone who is stuck with image analysis and wishes for quick help can apply.

These are 100% online sessions (we ‘meet’ in a Zoom chat room) where you submit your images and a little explanation text in advance and you get suggestions for 30 min and an analysis pipeline all done for you (Fiji, CellProfiler, Ilastik, QuPath, KNIME)!

If you are interested, please apply as soon as possible (sorry for the late announcement).

Here is how to apply: https://www.scilifelab.se/facilities/bioimage-informatics/

Rare: 2 permanent microscopy jobs in Stockholm!

Hi there

I don’t get to post this type of announcements on a daily basis! 2 microscopists are required at the Cell Profiling facility at SciLife!

See here for details.

LCI product seminar: How to label organelles in live cells?

On Wednesday (13^th) at 9:30 in Lipid seminar room in Neo (KI Flemingsberg), please come and enjoy a short seminar presenting a new way to label organelles in live cells.

LabLife will present their product called Viromer Cytostain.

We will stream the seminar live so you can follow it even from your desk! 🙂

Lots of Image analysis courses in Uppsala! :)

Biovis is the image facility at Uppsala University, just a stone-throw away from us. Every year, they run several Image analysis courses, from short introductions to full blown courses.

Have a look here!

CUBIC seminar tomorrow at Scilife

Do not miss the seminar tomorrow morning at Scilife: the inventor of the CUBIC technique, Etsuo Susaki, will present his technique which can clear fatty and dense tissues.

Click here to know where and when.

And here is the link to the updated Cubic protocol.

Antibody-based technologies at SciLife

Apply to this course at SciLife and learn about Antibody-based technologies on the 25th of March.

Image Analysis Call4help on 14th of feb!

The image analysis help you have always dreamt of, totally for free!!! ???

Deadline 6th of feb!

First SciLifeLab BioImage Informatics call4help zoom session

On the 14th February 2019, 10:00 – 12:00 the SciLifeLab BioImage Informatics Facility is organizing an online support session on BioImage Analysis (“call4help” session).

How does it work?

Each selected participant gets a 15 min slot. You have 5 min to present your problem. It is mainly about showing the scientific context, representative input images, describing desired output measurements, and giving a brief statement about what was done before. The remaining 10 min we will brainstorm together on the possible solution(s), discuss tools, techniques, etc.

The Bioimage Informatics Facility can provide further support, if needed. We are happy to announce that Sylvie Le Guyader, Live Cell Imaging Facility, KI, Huddinge, is joining the session as microscopy expert.

How can I participate?

Step1:

Prepare a presentation – use this template for your presentation:

Step2:

a) Upload your presentation to this google drive:

b) AND send an e-mail to anna.klemm@it.uu.se until 6th February 2019.

Step 3:

Join this zoom-session.

If your problem is selected for presentation, you will get a time-slot of 15 minutes within the session (14th February 2019, 10:00 – 12:00). If not, you are welcome to join the discussion anyway!

What are the Deadlines

Submission of a problem: until 6th February 2019

Notification about participation: 8th February 2019

Session: 14th February 2019, 10:00 – 12:00

Participants

Petter Ranefall

Kevin Smith

Anna Klemm

Sylvie Le Guyader

Call4Help format

The call4help format was initially developed by ScopeM, ETH Zürich.

Matching the Refraction index of the sample with the objective

Together with the coverslip and the immersion medium (oil, water, glycerol or air), the sample mounting medium is part of the design of a microscopy objective. Matching the refraction index of the sample to the one recommended by the manufacturer of the objective will make the sample transparent for the objective, drastically improving fluorescence microscopy in samples thicker than a couple of um (i.e. anything except fluorescent beads!).

Not matching the refraction indices is equivalent to watching something through a wet window… Far from optimal! :-/

The refraction index recommended by the manufacturer is the same as the RI of the immersion medium: 1.52 for an oil immersion objective, 1.47 for a glycerol objective, 1.33 for a water objective, 1 for an air objective.

This article compares 7 mounting media and their effect on the refraction index of brain samples. CFM3 seems to be a cool mounting medium. The company that produces it has partially paid for the study but it sounds worth a try anyway!

In the same vein, this article presents a non-toxic way to change the refraction index of cell culture medium (not the sample) to improve imaging of live samples. Sounds pretty promising to grow live organoids which quickly become opaque. This will also be very useful when clearing samples as the sample chamber on a light sheet microscope is big so this is a cheap way to fill the chamber for imaging. 🙂

If you try any of these 2 chemicals, please leave a comment to let us know how it went! 🙂