Delong Instruments

Delong Instruments Firma s více než 25 lety zkušeností s vývojem a výrobou elektronových mikroskopů a trysek, e

Some children build castles from blocks — scientists build new materials from structures so small they're invisible to t...
01/06/2026

Some children build castles from blocks — scientists build new materials from structures so small they're invisible to the naked eye. For Children's Day, we are looking at a tiny nano-construction set: a metal-organic framework, a porous material studied for applications such as gas storage, separation, catalysis, and environmental technologies.

The image reveals well-defined, cube-like particles with distinct size and contrast differences, making the nanoscale structure easy to observe and compare. LVEM 25E combines naturally high contrast with compact, user-friendly operation, supporting multiple imaging and analytical modes in one system.

International Computer Day – a look beneath the surfaceThis is not abstract art.It’s a section of a silicon microchip.At...
25/05/2026

International Computer Day – a look beneath the surface

This is not abstract art.
It’s a section of a silicon microchip.

At this microscopic scale, precisely engineered structures determine how computers process data, store information, and communicate. Long before software runs, performance is defined by hardware — shaped in silicon, far beyond what the human eye can see.

International Computer Day (May 25) is a good reminder that every “zero” and “one” begins as a physical structure, carefully designed at the micro- and nanoscale.

Because computing power starts long before the code.

For International Museum Day, here is a collection no curator had to arrange. Under the electron microscope, diatoms res...
18/05/2026

For International Museum Day, here is a collection no curator had to arrange. Under the electron microscope, diatoms resemble a drawer of miniature relics — intricate, ornamental, and quietly spectacular. They may look like tiny engraved exhibits, but these silica structures were shaped by nature and hidden in river sediment until brought into view.

Captured with the LVEM 5 in SEM BSE mode, this micrograph shows diatoms and stones on a stub with striking contrast and crisp surface detail. The point of interest is the remarkable diversity of forms and textures, revealing just how much architecture, pattern and scientific value can be found in objects far too small for the naked eye.

Sample courtesy of , Jakub Dobiáš

For Mother's Day, we are looking at one of nature's quiet acts of care: protection wrapped in layers. With a little imag...
11/05/2026

For Mother's Day, we are looking at one of nature's quiet acts of care: protection wrapped in layers. With a little imagination, this brain section even reminds us of a gentle female face, framed by the delicate contours of myelin.

Captured on the LVEM 25E in STEM 15 mode at 15 keV, this micrograph shows a section of brain tissue where individual fibers and lamellae of the myelin sheaths can be clearly observed. These layers play an essential role in insulating nerve fibers and supporting efficient signal transmission in the nervous system.

Star Wars Day in a graphene galaxy — May the Fourth be with you.No lightsabers were needed for this one — just a beam of...
04/05/2026

Star Wars Day in a graphene galaxy — May the Fourth be with you.

No lightsabers were needed for this one — just a beam of electrons and a tiny graphene galaxy where the Au and Ag nanoparticles are doing their best impression of distant stars.

Captured with the LVEM 25E in SEM mode using a BSE detector, this image is part of material testing for electrode sensitivity. In backscattered electron imaging, materials with higher atomic numbers appear brighter, which is why the Au and Ag nanoparticles stand out clearly against the lighter carbon background. This makes it easier to observe particle distribution and their relationship to the graphene structure.

Sample courtesy: .cz

April is Earth Month — and it's almost over As April draws to a close, it's a good time to remember that caring for our ...
27/04/2026

April is Earth Month — and it's almost over

As April draws to a close, it's a good time to remember that caring for our planet isn't limited to one day on the calendar, but it's important to realize how fragile and complex our planet's ecosystems are. Corals may appear static, but at the microscopic level, they reveal highly organized structures that play a key role in reef formation.

TEM and electron diffraction (ED) images of a coral sample acquired using the LVEM 25E. Corals build their skeletons from crystalline calcium carbonate, and the diffraction pattern highlights this crystallographic order, helping scientists understand how reefs grow and respond to environmental stress.

Sample courtesy of Helmut Gnaegi

From synchrotrons to the lab bench—bringing nanomaterials into sharper focus at Hun-Ren Wigner Fizikai Kutatóközpont .In...
22/04/2026

From synchrotrons to the lab bench—bringing nanomaterials into sharper focus at Hun-Ren Wigner Fizikai Kutatóközpont .

In our latest user profile, Dr. Gyula Faigel explains how the LVEM5 complements advanced X-ray techniques by providing essential morphological insight at the nanoscale. From checking AFM tips and analyzing nanotube systems to studying hybrid perovskites and crystalline forms, the instrument enables fast and routine characterization. Its compact design and multi-mode capability (TEM, SEM, STEM, and electron diffraction), combined with nanometre-scale resolution, make it a powerful and reliable tool for advanced materials research.

Read the full interview here: https://www.delong.cz/references

Yesterday was World Liver Day, a reminder that the liver is one of the few organs capable of regeneration – but only to ...
20/04/2026

Yesterday was World Liver Day, a reminder that the liver is one of the few organs capable of regeneration – but only to a limited extent. Understanding what happens inside liver cells is therefore essential for research into metabolic stress and disease.

This TEM image of a mouse liver stained section highlights mitochondria within a hepatocyte, surrounded by lipid droplets. The strong contrast reveals how energy-producing organelles operate in fat-rich environments. Low-voltage TEM allows these fine intracellular details to be visualised clearly and efficiently.

LVEM 25E, TEM: Mouse Liver

Tomorrow we celebrate World Quantum Day, and quantum dots are a brilliant example of how nanoscience shapes everyday tec...
13/04/2026

Tomorrow we celebrate World Quantum Day, and quantum dots are a brilliant example of how nanoscience shapes everyday technology. Their size-tunable optical properties make them especially valuable in displays, LEDs, photovoltaics, and biomedical imaging, where bright, stable emission is a major advantage.

This micrograph was captured with the LVEM5 in TEM mode. As the smallest transmission electron microscope in the world, it is particularly well suited to particle-size samples, making it easy to reveal fine detail and particle distribution with strong contrast.

LVEM5, TEM, CdSe/ZnS quantum dots

Sample courtesy: Wrocław University of Science and Technology , Grzegorz Zatryb

At first sight, these nanoparticles might look like Easter eggs — just not the kind you'd find in a basket.At the nanosc...
06/04/2026

At first sight, these nanoparticles might look like Easter eggs — just not the kind you'd find in a basket.
At the nanoscale, spherical gold nanoparticles can take on an egg-like appearance. In bright-field imaging (a), they show up as neat, uniform shapes, while EDS elemental mapping (b), carried out in collaboration with Bruker, uncovers their true “filling”—clearly identifying gold (Au) and silicon (Si) and how they’re distributed.

Captured using the LVEM25E in STEM mode (15 kV) with EDS mapping, these images highlight how straightforward it is to explore size, shape, and composition at the nanometre scale—even without unwrapping any foil.
More about low kV elemental mapping of core–shell nanoparticles:
https://lnkd.in/gpe7zhbX

Wishing you a joyful Easter—and may all your discoveries be just as well hidden (and satisfying to find).

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