Electron Microscopy Articles
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Insights into Colloidal Nanomaterials: Classification, Structure, Synthesis and Characterization
Colloidal nanomaterials represent a rapidly evolving and interdisciplinary field with a wide range of applications. The combination of diverse synthetic methods, cutting-edge characterization techniques, and a fundamental understanding of the structural properties of these materials is crucial for advancing the field and realizing the full potential of colloidal nanomaterials. Classification of ...
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Nanocomposites from spent coffee grounds and iron/zinc oxide: green synthesis, characterization, and application in textile wastewater treatment
We're thrilled to share the findings of our latest scientific study, which introduces a groundbreaking development in the field of nanotechnology and environmental remediation. In our research, we explored the innovative use of spent coffee grounds (SCGs) as a supporting material for bimetallic FeO/ZnO nanoparticles. Leveraging the antioxidant-rich properties of eucalyptus and trumpet ...
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Scanning Electron Microscope (SEM): A Powerful Tool for Unveiling the Microscopic World
The scanning electron microscope (SEM) allows us to observe the world in a level of detail that was previously unattainable. SEMs scan a sample's surface with a concentrated electron beam to create high-resolution images. SEM images can be used to examine a variety of materials, including biological tissues, metals, ceramics, and polymers. How does a scanning electron microscope work? A beam of ...
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Metallographic Testing: Unlocking the Secrets of Materials' Microstructures
Metallographic testing is a crucial technique in the field of materials characterization and analysis. It involves the examination of the microstructure of metals and alloys to gain valuable insights into their composition, mechanical properties, and overall quality. This article delves into the significance of metallographic testing and its diverse applications in different industries. ...
By TestXpert
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Lipid Nanoparticles (LNPs) Design and Formulation Production
Compared with viral vectors, non-viral delivery vectors are easier to scale up and have the ability to solve the most critical safety issues. Thanks to the LNP-mRNA vaccine that came to the fore during the COVID-19 pandemic, lipid nanoparticles (LNP) are undoubtedly the most advanced and widely studied non-viral vectors at present. Typically, LNP is composed of 4 components: ionizable cationic ...
By BOC Sciences
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Polymer Characterization: A Practical Guide
What is polymer characterization? The study of the physical, chemical, and mechanical properties of polymers is known as polymer characterization. It is a broad field that includes a variety of techniques. The goal of polymer characterization is to comprehend polymer structure-property relationships. This knowledge can be applied to create new polymers with desired properties, improve the ...
By Matexcel
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Observation of atomic structure of staphylococcal bacteriophage by cryo-electron microscopy
Researchers at the University of Alabama at Birmingham exposed the structure of a bacterial virus in unprecedented detail using cryo-electron microscopy. This is the first structure of a virus capable of infecting S. epidermidis, and high-resolution structural knowledge is a critical link between viral biology and the potential therapeutic applications of the virus for inhibiting bacterial ...
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Polymer Characterization -- BOC Sciences
Polymer testing and characterization is a key to solving the relationship between material composition, structure, and performance. Through a series of characterization techniques, the size, morphology, structure, chemical composition, thermal properties, mechanical properties, etc. of polymers can be studied qualitatively and quantitatively. This is a complex and multi-faceted process that ...
By BOC Sciences
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How to utilize grounding modes in electrochemical experiments
In a typical electrochemical experimental setup, the working electrode is not directly connected to the ground. This allows the use of a grounded potentiostat/galvanostat (PGSTAT) for the electrochemical research. However, there are times when electrochemists need to experiment with working electrodes that are intrinsically grounded (e.g., for water pipes, rebar in concrete, etc.). There are ...
By Metrohm AG
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How Bacteria Move Revealed
Researchers at the University of Virginia School of Medicine and their collaborators have solved a decades-long puzzle about how E. coli and other bacteria can move. Bacteria push themselves forward by coiling long, thread-like accessory parts into the shape of a bottle opener, like temporary propellers. But how they do this puzzles scientists because the propeller consists of a single protein. ...
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What is SIMS Surface Analysis?
SIMS is a high-sensitivity surface analysis technique for determining surface composition, contaminant analysis and depth profiling in the uppermost surface layers of a sample. Secondary ion mass spectrometry, or SIMS, is one of the most sensitive techniques for interrogating the uppermost surface layers of material, from depths of a single atomic layer to several tens of microns (µm). It ...
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Clinoptilolite as Support for Bacterial Community Formation in Wastewater Treatment
Published 5-20-2022 by Lacrimioara Senila et. al. at the Research Institute for Analytical Instrumentation Subsidiary, National Institute for Research and Development of Optoelectronics, and the Faculty of Materials and Environmental Engineering, Technical University, Romania. A recent study investigated the use of natural zeolite as a microbial support media in wastewater treatment. Using ...
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Choosing isotope ratio detectors – why use a Daly?
If you work in analytical science, and particularly if you’re in spectroscopy or spectrometry, you’ll be aware that there are a number of detector types used. For isotope ratio instruments, it’s common to have multiple detectors in an instrument, usually used to measure ion beam intensities simultaneously rather than sequentially. In our business, detectors are broadly divided ...
By Isotopx Ltd
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Sampling Air-Suspended Particulate Contaminants from Disk Drives
Our MPS-3 Microanalysis Particle Samplers have helped many engineers collect samples from computer disk drives for microanalysis and solve contamination problems. The MPS-3 Microanalysis Particle Sampler is an invaluable tool for the engineer to collect air-suspended particle samples from a disk drive for analysis. It is especially designed to make it easy for conducting analysis using advanced ...
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Air Cleaner and Filter Efficiencies - Case study
Our model PC-2H 10-stage Quartz Crystal Microbalance (QCM) real-time cascade impactor is a proven instrument for the testing of air cleaner and filter efficiencies in multiple application conditions. Whether it is for testing the efficiency of air cleaners in a nuclear submarine or for finding out how efficient an air cleaning system is in a factory, engineers have relied on our PC-2H 2 lpm flow ...
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Atmospheric Aerosol Research - Case study
Our PC-2H Quartz Crystal Microbalance (QCM) multistage real-time cascade impactor and Microanalysis Particle Samplers have helped scientists worldwide to study particles in the upper atmospheres in all corners of the earth, over volcanoes, oceans, the Arctic and Antarctica regions. Whether it is for measuring the mass concentration and size distribution of particles in the atmosphere over an ...
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Sampling Airborne Particles in Clean Rooms - Case study
Our MPS-4G1 Microanalysis Particle Sampler enables engineers in clean rooms to efficiently collect samples of airborne particles for species identification to solve contamination problems. When airborne particles cause contamination problems that affect production of devices in a clean room, steps beyond particle counting are required to pinpoint their sources. Samples of the particles need to ...
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The Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health consortium (HICE) - Case Study
Venacontra delivered Diluting Aerosol Sampler (DAS) during the year 2012 for the HICE – The Helmholtz Virtual Institute of Complex Molecular Systems in Environmental Health consortium. DAS has been succesfully used in various HICE measurement campaigns including the following combustion sources: marine applications with heavy fuel oil and marine gas oil vehicle emissions small ...
By Venacontra
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A Simple Guide to How Aerosol Particle Counters Work
Overview Aerosol particle counters are built to rapidly count and size contaminant particles in cleanroom air and other controlled environments. Users tend to see this as a device where a button is pressed and absolute results tumble out. However, when measuring anything small, it is important to be aware of the technology within the instrument to understand the relevance of the data generated, ...
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Will Cryo-EM Take Over Structural Biology?
According to "Nature", in recent years, the data submitted by laboratories to the Electron Microscopy Database (EMDB, established by the European Institute of Bioinformatics to meet the needs of the academic community for cryo-EM data) has increased exponentially, mainly because explosive growth in the number of cryo-EM in laboratories around the world. Although the database also accepts data ...
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