Delong Instruments

Name: Delong Instruments
Address: Palackého třída 3019/153b, Brno, 61200, CZ
Telephone: +420 549 123 511

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Delong Instruments

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

26/10/2026

Something hairy has crawled under the microscope just in time for Halloween.

This microscopic image, taken using SEM-BSE on an LVEM 25E, takes us to the hairy leg of a tarantula, where the dense forest of hairs suddenly fits perfectly into a Halloween story.

Imaged in SEM-BSE mode at 15 kV, the sample shows how easily the LVEM 25E can reveal fine surface morphology and texture with strong contrast. And there is another treat this Halloween: SEM-BSE resolving power has now been improved to 2 nm, bringing even finer surface detail within reach of our compact all-in-one electron microscope.

19/10/2026

Last week we celebrated World Food Day, marked on 16 October.

This year’s theme, “Innovate today. Nourish tomorrow.”, is a good reminder that innovation in food can start with seeing what the naked eye cannot.

This TEM micrograph, captured with the LVEM 25E, shows 30 nm TiSiO₄ nanoparticles in wheat flour, deposited on a carbon film. The strong contrast makes the individual particles and their clusters easy to distinguish, providing a clear view of their size and distribution at the nanoscale.

With the compact LVEM 25E, detailed TEM imaging can become a straightforward part of food and nanomaterials research.

Sample courtesy of Soňa Baršová, Státní zemědělská a potravinářská inspekce

14/10/2026

September was one busy month!

From Liverpool to Rome, Szeged, Naples, and across the Czech Republic, September took us to 10 events packed with science, microscopy, new ideas, and great conversations. It was an exciting, inspiring — and definitely intensive — few weeks for the Delong Instruments team.

Here's a quick look back at where September took us.

12/10/2026

This week marks the International Day of Rural Women — and a good moment to appreciate where many materials really begin.

Before cellulose becomes a research sample, textile fibre or packaging material, it usually has a much more down-to-earth origin: plants, fields and the people who work with them.

Under the LVEM 25E, unstained cellulosic microfibres reveal fine nanometric fibrils — proof that natural materials have been quietly overachieving all along.

Sample courtesy of Luca Bertolla, Ústav fyziky materiálů AV ČR

05/10/2026

Before we built with wood, wood had already built itself.

For World Architecture Day, we are looking at architecture designed by nature – the cellular structure of wood.
Imaged in TEM with the LVEM 25E, this stained section reveals the layered cell walls and junctions that form wood’s microscopic structure.

From buildings to biomaterials, good architecture is all about structure – even at the micrometre scale.

Sometimes the most impressive architecture is already growing around us.

21/09/2026

Autumn begins this week, bringing a familiar transformation to leaves above ground. But inside every leaf, there is another world of structures that normally remains completely hidden from view.

This STEM micrograph shows a section through the central vein of a leaf from a herbaceous plant. A clearly visible chloroplast can be observed in detail, including its internal thylakoid membrane system — the structure where the light-dependent reactions of photosynthesis take place.

As leaves prepare for autumn, chlorophyll is gradually broken down, allowing other pigments to become more visible and giving foliage its characteristic seasonal colors.

The sample was imaged in STEM mode at 10 kV, demonstrating the strong contrast and fine ultrastructural detail achievable with low-voltage electron microscopy.

Sample courtesy: Istituto per la Protezione Sostenibile delle Piante

14/09/2026

This week, we're celebrating International Microorganism Day, a perfect occasion to look more closely at one of the best-known bacteria in science: Escherichia coli.

Although E. coli is often associated with disease, most strains are harmless and are natural inhabitants of the intestinal tract. It is also one of the most widely used model organisms in biology: under optimal laboratory conditions, some strains can divide roughly every 20 minutes, making E. coli exceptionally useful for studying bacterial growth, genetics and cell biology.

This STEM micrograph shows a single E. coli cell imaged with the LVEM 25 at an accelerating voltage of 15 kV. The image reveals the characteristic rod-shaped morphology and fine internal contrast of the bacterial cell, demonstrating how low-voltage electron microscopy can provide valuable structural information at the nanoscale.

Sample courtesy of Fakulta chemická VUT v Brně

07/09/2026

Life exists at every scale — from entire ecosystems to the delicate structures inside a single plant cell. This micrograph of an onion section reminds us that even the most familiar plants contain an extraordinary world hidden from the naked eye.
Captured with the LVEM 25E in TEM mode, the image reveals fine cellular organization and internal structures with clear contrast, showing how easily valuable structural detail can be observed at the nanoscale.

Sample courtesy of Julita Nowakowska, Wydział Biologii | Uniwersytet Warszawski

03/09/2026

Festival vědy a techniky 2026 se blíží – a Delong Instruments bude u toho!

Od 4. do 6. září nás najdete na Brněnském výstavišti v pavilonu A1. Přijďte nahlédnout do fascinujícího mikrosvěta, vyzkoušet si zábavné aktivity a objevit možnosti elektronové mikroskopie.

Vstup je zdarma – budeme se těšit, až se u nás zastavíte!

31/08/2026

Dear students, summer mode is officially over — time to switch your brains back on!
September means new notebooks, new challenges and a return to the classroom. And what better way to welcome the new school year than with a closer look at the organ that will be doing most of the work?
This electron micrograph reveals the intricate structure of brain tissue at a scale far beyond what our eyes can see — a small reminder of just how extraordinary the machinery behind learning, memory and curiosity really is. Close to the cell nucleus, we can also see the delicate membrane network of the endoplasmic reticulum, offering a glimpse into the complex inner organisation of a brain cell.

So, brains on, pencils ready… and back to school!

Sample courtesy of Magdalena Gewartowska, Medical University of Warsaw - MUW

Adresa

Palackého Třída 3019/153b
Brno
61200

Telefon

+420 549 123 511

Web

http://www.delong.cz/

Upozornění

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