Sergei Anishchik’s Post

X-Ray Diffraction (#XRD) technology is a powerful analytical method used to study the crystal structure, phase composition, and other structural characteristics of crystalline materials. XRD is based on the principle of X-ray diffraction, where X-rays interact with the atomic planes in a crystalline material to produce a diffraction pattern that can be analyzed to extract valuable structural information. https://lnkd.in/gh2a2hgm

In spite of their high sensitivity and self-referencing features, are plasmonic tilted fiber Bragg gratings "difficult" to fabricate and use? Not any more! It is shown in this article published in collaboration with groups in Belgium (Caucheteur and Loyez), and Spain (Villatoro) that when a single deposition of metal on one side of the standard single mode fiber is used, it is no longer necessary to polarize the interrogating light source: the transmission spectrum is made up of an interleaved comb of highly sensitive resonances and totally unsensitive ones. This allows for spectrally localized, self-referenced measurements of biosensing events at the fiber surface, and improved accuracy through averaging of multiple resonance shifts.

Our Atmosphere AX system is designed to seamlessly integrate with all (S)TEM techniques available in your microscope. Whether you're working with 4D-STEM, iDPC-STEM, or other advanced techniques, Atmosphere AX can turn the microscope into an environmental TEM in an instant. Take iDPC-STEM, for example. This powerful technique excels at imaging light elements with atomic resolution, revealing intricate structural details that were once beyond reach. With Atmosphere AX, researchers can now achieve these high-precision results under various relevant environmental conditions, such as pressurized gas atmospheres, even including vapors! A recent study published in Science demonstrated the potential of iDPC-STEM to observe individual atoms of a zeolite (ZSM-5) and the cage interaction with incoming benzene. For the first time, this work showed the dynamic changes the cage structure of ZSM-5 undergoes by using the Atmosphere AX in situ TEM workflow solution. The image shows a zeolite structure where pyridine are being adsorbed and desorbed. Full publication here: https://hubs.li/Q02N7T6F0 https://hubs.li/Q02N873r0

Magnetic and Electronic Films – Microstructure, Texture and Application to Data Storage: Volume 721 (MRS Proceedings)

Integrated color cameras allow researchers to “see into each reactor,” even if they are not there.   See profile reaction texture, i.e., homogeneous vs. heterogeneous with separated oil or solid phases, and see solid characteristics.   This is really important since about 70% of reactions are heterogeneous and changes in the characteristics of reaction solids can be important to process understanding and scale up. #reactall #reactionscreening #reactionprofiling #reactionkinetics #routescouting #processchemistry #processchemist #synthesis #reactions #chemicalreactions

🔬 Discover the Power of Electron Microscopes in Technical Cleanliness Analysis! 🚀 Ensuring the cleanliness of technical components is crucial for optimal performance. Our latest application note explores the advantages of electron microscopes in particle analysis. Download now and enhance your analysis capabilities! https://ter.li/tifj1h #TechnicalCleanliness #ElectronMicroscopes #ParticleAnalysis

The integrated color cameras in ReactALL™ provide invaluable insights into the reaction texture, and allow scientists to continuously monitor the ongoing reaction. In this short video, you can see the images captured during an experiment.

How to embed a small specimen in a well of low melting agarose and Phytagel and mount it on a stage for imaging ?  The architecture of PHASEVIEW Alpha3 light sheet microscope using a fluorescence microscope stand as a detection unit allows it to adapt to any experiment setting. Follow these steps : - Use T-spike holder  - Put forming mold on top of holder - Fill with liquid - 0,8 % phytagel - Insert well-shaping mold  - Wait for phytagel to solidify - Remove shaping molds - Add specimen and medium to well - Close with low-melting agarose drop.  - Insert mold into sample chamber - Adjust sample orientation  - Place sample chamber on translating stage More information in this tutorial :

It is 50 years that people use models of viscoelastic fracture which assume the fracture energy in the process zone is independent on the crack speed. This has been assumed in the cohesive models by Knauss and Schapery and then by the dissipation theory of de gennes and Persson-Brener. Researchers like to use this model because it is simple. Unfortunately, it does not work, as we show in adhesion experiments in the recent JMPS paper attached. We obtain nice results for a broad band power law material, but these results only work at very low speeds. So please researchers, try to find a better model, although the classical model is so easy to use! https://lnkd.in/djzyemtZ

#OneTechnologyAMonth series Sept 2024 - Laser diffraction Citing one of Alan Rawle's top words of wisdom: "Like most things in life one gets out what one puts in" Did you know that typical instrument related standard error in a laser diffraction measurement is less than 1% regardless of particle size? The main sources of error are: 1. Dispersion - especially important for particle sizes less than 1 micron 2. Sampling - especially important for particle sizes larger than 100 microns (image from Dr. Henk Merkus, "Quality assurance in particle size measurements" 1997)