microscopy sample Articles
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Using amine-functionalized magnetite hollow nanospheres (AMHNs) as adsorbents for heavy metal ions
In this paper, the amine-functionalized magnetite hollow nanospheres (AMHNs), prepared through a facile one-pot synthesis, were used as heavy metal ion adsorbents, whose morphology and physicochemical features were exploring by transmission electron microscopy, vibrating sample magnetometer, X-ray diffraction and Fourier-transform infrared analyses. Its adsorption performances for Pb2+, Cu2+, ...
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On the nanoscaled defects of 3C–SiC
In the present work we report on some recent results on the 3C–SiC structural nanoscaled defects, studied by Transmission Electron Microscopy. The examined samples were grown in several laboratories by different methods such as Vapour–Liquid–Solid, Continuous Feed Physical Vapour Transport, Chemical Vapour Deposition and Liquid Phase Epitaxy. In all these methods, for both bulk and epitaxial ...
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NIOSH Announces Publication of Paper from Industrywide Study on Carbon Nanotube and Nanofiber Exposure
On April 27, 2015, the National Institute for Occupational Safety and Health (NIOSH) announced publication of “Carbon Nanotube and Nanofiber Exposure Assessments: An Analysis of 14 Site Visits” in Annals of Occupational Hygiene. The paper is the second report from NIOSH’s Industrywide Study. According to NIOSH, the findings illustrate which tasks have the highest exposures, ...
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Single-particle analysis and electron tomography
Both single-particle analysis and electron tomography are special tools for the structural analysis of biological components by transmission electron microscopy. Single-particle analysis enables us to determine the structures of relatively large proteins and macromolecular complexes without crystallisation. Electron tomography is often used to visualise organelles and subcellular structures at ...
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Adsorption of Pb2+ from aqueous solution using spinel ferrite prepared from steel pickling sludge
In this paper, spinel ferrite with high crystallinity and high saturation magnetization was successfully prepared from steel pickling sludge by adding iron source and precipitator in the hydrothermal condition. The obtained spinel ferrite was characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), vibrating sample magnetometer (VSM), and Zeta potential ...
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One-step approach for the synthesis of CoFe2O4@rGO core-shell nanocomposites as efficient adsorbent for removal of organic pollutants
CoFe2O4-reduced graphene oxide nanocomposites (CFG) have been successfully synthesized via one-step solvothermal method. The prepared CFG are characterized by X-ray diffraction, Raman spectroscopy, Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FESEM), vibrating sample magnetometer and so on. The FESEM results show that CFG have uniform core-shell ...
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Effects of gamma irradiation on PMMA/polyaniline nanofibre composites
Polyaniline (PANI) presents promising antioxidant and radical-scavenging properties. Substances having these characteristics are good candidates for radioprotecting agents. In this work, nanofibres of polyaniline emeraldine doped with (?)-camphor-10-sulfonic acid (PANI-(?)-CSA) were prepared by self-assembly method under 'silent' and sonochemical conditions. PANI emeraldine base (PANI-EB) ...
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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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Antiscalant reduces cleaning frequency from every 2 weeks to over 2 years - Case Study
Feedwater: Well Water Application: Municipal Review Figure 1. Image of reverse osmosis system at the municipal water plant Avista Technologies was contacted by a municipal water supplier in Ohio USA in June of 2012 to seek advice on their reverse osmosis (RO) system which had been experiencing increases in delta pressure and flow losses in a matter of days. The RO process has a well water ...
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Photocatalytic degradation of methyl orange, methylene blue and rhodamine B with AgCl nanocatalyst synthesised from its bulk material in the ionic liquid [P6 6 6 14]Cl
The photocatalytic degradation of wastewater containing three industrial dyes belonging to different families, methyl orange (MO), methylene blue (MB) and Rhodamine B (RhB), was studied under UV-Vis irradiation using synthesised silver chloride nanoparticles. The nanocatalyst was prepared by a dissolution/reprecipitation method starting from the bulk powder and the ionic liquid ...
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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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The first recorded outbreak of cryptosporidiosis due to
Cryptosporidium cuniculus (formerly rabbit genotype), following a water quality incidentWe report the first identified outbreak of cryptosporidiosis with Cryptosporidium cuniculus following a water quality incident in Northamptonshire, UK. A standardised, enhanced Cryptosporidium exposure questionnaire was administered to all cases of cryptosporidiosis after the incident. Stool samples, water testing, microscopy slides and rabbit gut contents positive for Cryptosporidium were ...
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Enhanced selectivity and capacity of clinoptilolite for Cd2+ removal from aqueous solutions by incorporation of magnetite nanoparticles and surface modification with cysteine
In this study, magnetic zeolite (MZ) nanocomposite modified with cysteine was developed in order to enhance selectivity and capacity of clinoptilolite for cadmium ion. The prepared MZ nanocomposite is containing clinoptilolite and magnetite nanoparticles with weight ratio of 3:1. The synthesized nanocomposite was characterized by transmission electron microscopy, X-ray diffraction and ...
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High density nanoparticle Mn–Zn ferrite synthesis, characterisation and magnetic properties
The amazing magnetic properties exhibited by nanoparticles Mn–Zn ferrites and their promising technological and medical applications have attracted much interest in recent years. Nanoparticle Mnx Zn(1–x)Fe2O4 spinel ferrites with x = 0.6/0.63/0.65/0.67/0.7 were synthesised by the nitrilotriacetate precursor method employing microwave combustion synthesis. Powder X–ray diffractometry (XRD) ...
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Physical and chemical impacts of conventional unit processes and coagulants on the dinoflagellate, Ceratium hirundinella
The freshwater dinoflagellate, Ceratium hirundinella (C. hirundinella) with its complex morphology and robust thecal plate cell covering, is responsible for extensive problems during drinking water production. To have a better understanding of these problems, knowledge of what happens to the integrity of the cells after each step of the conventional water treatment process is essential. ...
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Map of the Month – Imaging Tungsten Disulfide
Welcome to Edinburgh Instruments monthly blog celebrating our work in Raman, Photoluminescence, and Fluorescence Lifetime Imaging. Every month we will highlight our pick for Map of the Month to show how our spectrometers can be used to reveal all the hidden secrets in your samples.December2D materials are an emerging class of thin-layer crystals of interest due to their unique optoelectronic ...
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IRSST Publishes Assessment of Methods of Sampling and Characterizing Engineered Nanomaterials in the Workplace in English
The Institut de recherche Robert-Sauvé en santé et en sécurité du travail (IRSST) recently published a report, in English, entitled An Assessment of Methods of Sampling and Characterizing Engineered Nanomaterials in the Air and on Surfaces in the Workplace. As reported in our March 29, 2017, blog item, IRSST first published the report in French. The research project ...
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