Direct label of primary antibodies with the FlexAble kit

Some of our users have tested the ProteinTech FlexAble kit to directly label primary antibody and they are very happy so we thought we should share! πŸ™‚

It only takes 10min to label the primary. It saves time for the sample staining procedure and it saves cute animals when one stops ordering secondary antibodies! πŸ™‚ In the hand of our users, the images were as bright or brighter than the same labelling with primary + secondary.

And you can ask for a free sample to test! :):):)

 

Registrations to the LCI microscopy course 2025 will soon close!

There are a few spots left at our course (27 Jan – 14 Feb 2025): β€˜Microscopy: improve your imaging skills – from sample preparation to image analysis’ (6 credits). Application deadline: 5th of November 2024.

This course is completely unique in that it is a highly hands-on course but because it runs completely remotely, your hands will be on your own microscope and your own sample. 😊

  • To see how the course can help your microscopy project, check out the course schedule 2025 and the alumni testimonies on the course webpage.
  • You can read the course syllabus and apply on this page. Make sure you check the eligibility criteria and click on the + sign at the top for more information.
  • If you cannot apply to the course, you can anyway follow any of the lectures (in blue on the course schedule) as they will be publicly broadcasted live on Zoom and accessible to anyone without registration. The schedule and zoom link are available on the course page.

The purpose of the LCI facility microscopy course is to provide PhD students, researchers and core facility staff who have some prior experience of microscopy with enough theoretical and practical knowledge about their OWN sample and their OWN microscope, to enable them to:

  1. assess and improve their sample so that it becomes suitable for data extraction from fluorescence images,
  2. make best use of the hardware available in their lab/facility,
  3. fully understand the acquisition parameters they need to set in their own microscope software,
  4. design their experiment from scientific question to image analysis using a strong knowledge base.

The aim is to provide you with tools to acquire on ANY wide field, confocal or light sheet microscope, images of your samples that reliably answer your scientific question.

The course is free of charge. Contact us (LiveCellImaging@ki.se) for enquiries.

Free online Microtutor course about fluorescence microscopy

Dear everyone

Microtutor Live will soon start its first flipped classroom version of its online Fluorescence microscopy course. I am happy to be one of the instructors for Europe! See below more info and how to apply! πŸ™‚

Fluorescence Microscopy is a common technique in biological research, yet few researchers receive formal training on how to use it effectively. Microtutor, an interactive and free educational website, addresses this gap by offering self-guided courses on microscopy fundamentals. Students enroll themselves and work through the course at their own pace. Since the release of the first course on fluorescence microscopy in June, >600 students from all over the world have enrolled.

This fall, there is now going to be a special Microtutor LIVE version of the fluorescence microscopy course that includes instructor support instructor support.Β In this version, the students are assigned virtual course content each week to go through on their own, and then meet weekly with instructors over Zoom for Q&A. They can also attend virtual guest lectures each week, which will cover applications of the content. At the end, students can submit an optional individual project in the form of a microscopy experiment proposal to receive a certificate of completion for the course.

Students can learn more information and apply to join here.Β 

The LCI open microscopy course starts on Monday! :)

Dear all

It is my pleasure to invite you to follow the LCI facility microscopy course Microscopy: improve your imaging skills – from sample preparation to image analysis.

The course starts next Monday (29 Jan) and runs until the 16th of February.

As usual, all the course lectures are broadcasted live on Zoom. It is free of charge and you do not need to register.

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.

Here is a selection of what we will talk about:

  • Optics and image formation,
  • Anatomy of a microscope
  • Objectives and refraction index
  • Cameras and detectors, Noise and background, Bit depth and saturation
  • Sample preparation, Immunostaining, Clearing and expansion
  • Resolution and contrast, Nyquist sampling, Microscope settings
  • Data handling, OMERO.figure, Requirements for image analysis, Colocalization
  • Image processing and analysis

Check our course webpage to see the course schedule (Broadcasted activities are in blue) and the Zoom link. Scroll down to read the kind testimonies of our dear students! πŸ™‚

Here is the course syllabus.

For those who are on a far away time zome, we record all the live lectures and post them every evening on the LCI facility YouTube channel! πŸ™‚

We hope that you will enjoy the LCI facility microscopy course!

Kindly forward to anyone who might be interested.

The LCI team

A few spots left at the LCI microscopy course 29/01-16/02 2024

There are a few spots left for the LCI core facility light microscopy course (29 Jan – 17 Feb 2024): β€˜Microscopy: improve your imaging skills – from sample preparation to image analysis’ (6 credits).

This course is completely unique in that it is a highly hands-on, but your hands will be on your own microscope and own sample. The course runs completely remotely! 😊

  • To see how the course can help your microscopy project, check the course webpage. Look at the course schedule 2024 and the alumni testimonies!
  • Also check the course syllabus to see the eligibility criteria. Also read what you will learn in the Course content and Intended Learning Outcomes sections.
  • If you cannot apply to the course, you can anyway follow any of the lectures (in blue on the schedule) as they will be publicly broadcasted live on Zoom and accessible to anyone without registration. The schedule and zoom link are available on the course page.

The purpose of the LCI facility microscopy course is to provide PhD students, researchers and core facility staff who have some prior experience of microscopy with enough theoretical and practical knowledge about their OWN sample and their OWN microscope, to enable them to:

1) assess and improve their sample so that it becomes suitable for data extraction from fluorescence images,

2) make best use of the hardware available in their lab/facility,

3) fully understand the acquisition parameters they need to set in their own microscope software,

4) design their experiment from scientific question to image analysis using a strong knowledge base.

The aim is to provide you with tools to acquire on ANY wide field, confocal or light sheet microscope, images of your samples that reliably answer your scientific question.

The course is free of charge. Contact us (LiveCellImaging@ki.se) for enquiries.

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.

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!

Brighter secondary antibodies

Fluorophores are in constant development.

There is now a new generation of Alexa Fluor fluorophores: the Alexa Fluor Plus. They can be purchased already coupled to secondary antibodies on the ThermoFisher website.

Brilliant violet antibodies are also very bright and despite their name, they come in all colours. The can be purchased from Biolegend which produces the fluorophore.

Another excellent source of bright fluorophores is the Janelia Fluor dyes. They can be purchased coupled to antibodies from the NovusBio website.

The LCI microscopy course 2021 starts next week! :)

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

Title: 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 more knowledge could help them.

Applications are closed but all lectures will be broadcasted live and open to anyone without registration.

The course covers the following topics:

  • Optics, image formation, fluorescence, fluorophores, microscope and microscopy types
  • Objectives and refraction index, Cameras and detectors
  • Noise and background, Cameras and detectors, Bit depth and saturation, Multicolour imaging
  • Resolution and contrast, Sample preparation, Immunostaining
  • Nyquist sampling, Confocal and wide field settings, Scaling up and speeding up, High throughput/content
  • Volume imaging, deconvolution, multiphoton, Clearing and expansion
  • Live cell imaging, Fourier, AI, Super Resolution microscopy
  • Data handling, OMERO.figure, Requirements for image analysis, Colocalization
  • Image processing and analysis

Check the course schedule and details of how to join the Zoom webinars. Scroll down to read the kind testimonies of our dear students! 😊

Here is the course syllabus.

Hope you enjoy the LCI facility microscopy course 2021!

Super bright green fluorescent protein

Fluorophores are evolving fast! Here is a paper about a bunch of new fluorophores isolated from the jelly fish Aequoria. This includes the brightest fluorophore ever isolated: a new green fluorescent protein called AausFP1 that is almost 5 times brigther than GFP! Respect! πŸ™‚

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