Cathodoluminescence imaging on quartz in sandstone

How to image the beta cells in the islets of Langerhans fast and clearly?

Posted by Delmic on Jan 22, 2020 1:34:11 PM

Over the past decades, researchers have been dedicated to studying the beta cells in the islets of Langerhans in order to better understand Diabetes Type 1, one of the two widely spread forms of diabetes. Diabetes Type 1 is considered to be one of the most inheritable common diseases [1] and it is estimated that 9% of the population is affected by this life-threatening disease [2]. Despite the intensive research efforts over the past years, the exact causes of the disease are still unknown.

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Fluorescent world of marine microorganism: customer story

Posted by Delmic on May 28, 2018 1:20:00 PM

Studying microorganisms (or microbes), which are found in the ocean waters, is a fascinating process that can reveal the hidden secrets about ocean chemistry, biology and climate. Marine microorganisms are exceedingly small, diverse in their forms and distributed across the ocean, which makes it so challenging to analyze them.

Still, marine microbiologists are searching for the answers that will help us to understand the ocean’s ecosystem and how it influences us. This is the focus of the research group of Dr. Sten Littman from Max Planck Institute for Marine Microbiology.

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An inside look at the department of Imaging Physics, TU Delft: The breeding ground for innovations in iCLEM

Posted by Delmic on Sep 28, 2017 4:29:42 PM

Understanding the relationship between structure and function in biology requires continuous developments in the field of microscopy. While electron microscopes and fluorescence microscopes have been go-to techniques for studying organic samples at a high resolution, individually they fall short in offering the exhaustive data needed for truly in-depth life science research.

In 2011, the Charged Particle Optics group at TU Delft completed the development of the SECOM. This system integrates a light and electron microscope, thus combining the labelling capabilities of fluorescence microscopy with the high-resolution nanoscale data obtained from electron microscopy. Six years later, the department of Imaging Physics houses no less than five SECOM systems.

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Overcoming the challenges of light microscopy in the life sciences

Posted by Kaitlin van Baarle on Jun 15, 2017 4:16:55 PM

In order to make new discoveries in the life sciences, innovations need to be continuously made in microscopy. This way, scientists can take an ever-closer look at phenomena that are happening on a molecular scale.

Fluorescence microscopy is considered a reliable tool for studying organic samples at a high resolution. Nevertheless, the diffraction barrier of light poses the problem of not being able to distinguish objects that are smaller than the wavelength of light. Proteins, for example, can be as small as four nanometers. Even recent developments in light microscopy - such as super-resolution which can resolve objects at a smaller scale - come with the problem of providing no contextual or structural information besides the objects that glow under fluorescence.

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Correlative microscopy: Opening up worlds of information with fluorescence

Posted by Kaitlin van Baarle on Jun 1, 2017 12:43:00 PM

Scientists of all fields are most certainly familiar with the miniature worlds unearthed by electron microscopy. From the complex structures of viruses to extremely small forensic evidence, the revelations brought about by this technology have led to enormous developments in the scientific world. The wavelength of fast electrons is significantly smaller than that of visible light, creating images that were previously unobtainable with conventional light microscopy. For life scientists in particular, the main advantage of electron microscopy (from here on referred to as EM) is the contrast that the black-and-white high-resolution images reveal, providing essential information on the structure of a cell, organelle, or organic tissue.

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Choosing for a custom-built, high-performance system with ongoing service: The SECOM system

Posted by Kaitlin van Baarle on Feb 13, 2017 11:16:51 AM

Choosing for the right correlative light and electron microscope can be a challenge. It is a sizable investment in terms of time and funding. Furthermore, as knowledge grows in scientific disciplines and as publishing becomes ever more competitive, increasingly complex technology is needed to ensure the accuracy and the integrity of research. In a labyrinth of options, we offer the technology and the ongoing personal service needed for today's ambitious researchers in the life sciences: the SECOM system, and a team of committed engineers to help you throughout the process of your research.

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Super-resolution correlative microscopy: The perfect combination of function and structure

Posted by Kaitlin van Baarle on May 3, 2016 4:05:03 PM

As a researcher in the life sciences, your work will very likely involve studying various parts of a cell at small length scales. In particular, you may be interested in examining biomolecules and their function within the greater context of the cell as a whole. Recent technological and methodological developments in microscopy have made this process much more straightforward, with integrated fluorescence and electron microscopy. Such a system allows for automatically overlayed images from both an electron and a light microscope, providing you with the ability to identify certain organelles or biomolecules by tagging, at the same time that you are able to localize where they are situated within the cell. More recently, super-resolution fluorescence imaging has been developed, which opens up even greater opportunities for learning about the complexities of life.

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Thoughts on the various applications, techniques, and complications to be discovered in the fascinating fields of both cathodoluminescence and correlative light and electron microscopy.

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