mCherry-XL: brigther, more stable and with better spectra!

mCherry is a very popular red fluorescent protein. However it has several disadvantages:

  • It is shifted towards far red (ex peak 585 nm) so it often is not imaged optimally with the illumination sources and filters commonly available.
  • It bleaches fast

mCherry has now been evolved into mCherry-XL with several improvements:

  • This variant is shifted back towards green (ex peak 560 nm) therefore being very well excited with popular 561nm lasers.
  • It is 3 times brighter than mCherry
  • There is also a clear improvement in the lifetime for FLIM
  • Together the 2 points above means that less excitation power is required so it should help with the bleaching problem

Here is the paper. Therefore you should consider mCherry-XL for your future tagging with red fluorescence proteins.

Nikon Europe recruits an image analyst

Nikon Europe recruits an image analyst in Leiden.

See here if this is the dream job for you. 🙂

BII webinar about a great tool! TissUUmaps

The BioImage Informatics facility at Scilife organizes a new presentation on free and open-source tools: TissUUmaps, a browser-based tool for GPU-accelerated visualization and interactive exploration of millions of datapoints overlaying tissue samples.

Users can visualize markers and regions, explore spatial statistics and quantitative analyses of tissue morphology, and assess the quality of decoding in situ transcriptomics data. TissUUmaps provides instant multi-resolution image viewing, can be customized, shared, and also integrated in Jupyter Notebooks. TissUUmaps was created in collaboration between BIIF and the Wählby lab. You can read more about it and test the software on its web page: https://tissuumaps.github.io/
During the seminar, we will go through basic usage of TissUUmaps: installation, loading images, markers and regions, change visualization settings, and how to load / save / share projects. The webinar will be given by Christophe Avenel and will take place on March 3rd, 09:00-10:00 (instead of our normal Call4Help session). There will be time for questions and discussion, so we hope this event to be very interactive. Please register here.

Super resolution STED event at Scilife in March

Nordic superresolution microscopy facility staff/researchers: STED

March 15th and 16th at 9-12 am. CONTACT: Hans Blom (hblom@kth.se)

Mar 15, 2022 9:00am

  • 9:00-9:45am – BNMI info / STED intro [Hans Blom & Daniel Smeets (Leica)]
  • 9:45-10:15am – STED sample prepping [Ulf Schwarz et al. (Leica)]
  • Break
  • 10:30-11:00am – Input from a Nordic STED facility [Jonathan R. Brewer (DaMBIC)]
  • 11:00-11:45am – STED demos [Luis Alvarez/Ulf Schwarz et al. (Leica)]
  • 11:45-12:00amExtra discussion time

https://kth-se.zoom.us/j/69376340781

Mar 16, 2022 9:00am

  • 9:00-9:45am – Live-cell STED [Giovanna Coceano (KTH Stockholm)]
  • 9:45-10:15am – Remote STED [Marko Lampe (ALMF/EMBL)]
  • Break
  • 10:30-11:00am – STED-FCS [Erdinc Sezgin (KI Stockholm)]
  • 11:00-11:45am – Advanced STED demos [Luis Alvarez/Ulf Schwarz et al. (Leica)]
  • 11:45-12:00amExtra discussion time

https://kth-se.zoom.us/j/67902191893

Listen to the lectures at the LCI facility microscopy course!

Starting from next week, the Live Cell Imaging core facility at KI will run its yearly microscopy course.

All the course lectures and some workshops will broadcasted live on Zoom, free of charge and there is no need to register.

Name: Microscopy: improve your imaging skills – from sample preparation to image analysis

Date: 24 Jan – 11 Feb 2022

Target audience:

The aim for this course is to improve the microscopy skills of students and researchers who have already used a microscope to acquire digital images of fluorescent samples but feel that more knowledge could help them.

The course covers the following topics:

  • Optics, image formation
  • Fluorescence, fluorophores
  • Bleedthrough
  • Anatomy of a microscope
  • Objectives and refraction index
  • Cameras and detectors
  • Noise and background, Bit depth and saturation
  • Multichannel imaging and spectral unmixing
  • Resolution and contrast
  • Sample preparation, Immunostaining
  • Nyquist sampling
  • Confocal and wide field settings
  • Speed, High throughput/content
  • Volume imaging, deconvolution
  • Clearing and expansion
  • Live cell imaging
  • Fourier
  • AI, Super Resolution microscopy
  • Colocalization
  • Data handling, OMERO.figure

On this page, you can find the course schedule (public activities are in blue) and the  Zoom link to join. Scroll down to read the student testimonies! 😊

Hope you enjoy the Live Cell Imaging core facility microscopy course 2022! 😃

The LCI microscopy course 2022 is now open for registrations!

It is now time to apply to the intensive LCI microscopy course Jan/Feb 2022: Microscopy: improve your imaging skills – from sample preparation to image analysis

The aim for this course is to improve the microscopy skills of students and researchers who have already used a microscope to acquire digital images of fluorescent samples but feel that their knowledge is limited.

All the lectures at the LCI microscopy course will also broadcasted live online, free of charge and there is no need to register.

All details about the course including course schedule, how to apply, and how to follow the lectures are found here.

Scroll down to read the kind testimonies of our dear students! 😊

Hope you enjoy the LCI facility microscopy course 2022!

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