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Tag: "electron" at medical news

Nanospectrometer Aids in Identifying Nutrient Cycle

...vations of chemical composition, and doubles as an electron microscope to allow researchers to overlay chemical and physical images. It opens up a whole world of studies, Nealson said. You can use this technology to look at things going on inside the cell. This is going to change the way that we do a lot of...

Boffins Find Evidence for Novel Brain Cell Communication

...nd crabs). The current study provides the first electron microscopic evidence for gap junctions on the axons of excitatory nerve cells in the mammalian brain. Gap junctions at this site, on axons, would be expected to act as short circuits for nerve signals and to produce cross-talk. However the new dat...

Astronauts can Now Feed on 'radiation-eating' Fungi

... ability to capture radiation. By measuring the electron spin resonance signal after melanin was exposed to...that radiation interacts with melanin to alter its electron structure. This is an essential step for capturing radiation and converting it into a different form...

Bubbles may Pave Way for Producing Nanoscale Electronic Components

...examined the resulting film under both optical and electron microscopes, and found that the nanowires and nanotubes had become neatly lined up vertically towards the top of the bubble and evenly spread out across the surface. Varying the concentration of tubes or wires in the mixture altered the density of ...

Cancer Patient’s Life Improved With Anti-reflux Valv

...patients,” says Dr. Dua. “Our next step is to do electron microscopic analysis of clogged standard and anti-reflux stents to evaluate the role of reflux of intestinal contents in stent clogging,” Dua says. “We also hope to look at other uses for this type of stent.” Source-Newswie SRM/B...

Unique Models Help Teach Nanoscience to the Blind

...ale picture of the nano-mascot taken with scanning electron microscopy (SEM), Farhoud first reversed the image, making the blacks appear white and vice versa. Next, he used the various shades of grey in the image to confer heights on the carbon nanofibers: the blackest black was assigned a maximum height, whi...

A Sweet Step Toward New Cancer Therapies

...at problem, researchers have used a process called electron capture dissociation (ECD) instead of the usual "shake-it-til-it breaks" method to fragment proteins. But that method requires the presence of at least two positive charges, which can be difficult to accomplish with acidic molecules, such as proteins...

Natural Milk Protein Could Lead to Super Nutritious Foods

... Engineering also took part in the research, using electron microscopy to visualize the tiny micelles, which measure in at a miniscule 150 nanometers (0.00015 millimeter). Dr. Livney says that foods utilizing this technology could reach the marketplace within five years. The researchers are now studying whe...

Potentially Pathogenic Virus Found in Mad Cow Cells

... 'mad cow' disease. Examining the cultures using electron microscopy, Manuelidis and her co-authors found an abundance of 25 nm virus-like particles. They also found that the particles did not bind antibodies for the prion protein, indicating they were not composed of prion protein. The development of the p...

How Bacteria Generate Energy to Live?

...aramagnetic Resonance Spectroscopy, which observes electron spin, she and her co-worker Mark Nilges at the University of Illinois analyzed the properties of the flavin molecules, and mapped these functional properties to specific points in the protein structure. NQR is only one of several sodium pumping enz...

A Breakthrough in the Study of Hepatitis C

...tocytes. Finally, virus particles were examined by electron microscopy and shown to possess the expected size and shape of HCV virus particles. Once the system was established, the group examined whether sera from patients carrying HCV could infect the human fetal hepatocytes. When sera from patients infect...

Lead With a Poisonous Electron Shield

...ur atoms. The reason for this is the emerging free electron pair of the lead cation. It acts as an electronic ..., while the other hemisphere is filled by the free electron pair. This observation may help in the design of future lead-specific antidotes. Source-Eurekalert...

A Laboratory Filtration System Kills 100 Percent Of Dangerous Microbes In Water

...radicals are atoms or molecules that have an extra electron in dire need of a partner (they obtain the partner by stripping it from a nearby atom, damaging the "victim" in the process). In large quantities, the radicals can destroy toxic chemicals and even bombard bacteria to death or irreparably damage a mic...

Molecular Anatomy of Influenza Virus Detailed

...died by crystallography. The research team used electron tomography (ET) to make its discovery. ET is a nov...erized axial tomography, but it is performed in an electron microscope on a microminiaturized scale. The mission of the National Institute of Arthritis and Mu...

3 –D Image of Influenza Virus – A Definite Breakthrouh

...y a novel, three-dimensional imaging method called electron tomography. This is based on the same principle ...nical imaging technique, but it is performed in an electron microscope on a microminiaturized scale. SM...

Prestigious Wilson Award Goes To Yale Cell Biologist Joel Rosenbaum

... tubules of the PKD mutant mouse with the scanning electron microscope, they found that the cilia were either short or missing. They also provided conclusive evidence for the importance of cilia in the PKD pathology by demonstrating that the polycystins, gene products of the PKD genes, were located on these c...

Dermatologists Provide Unique Evidence of Possible Cause of Rare Skin Condition

...ontrol. Researchers used a field emission scanning electron microscope equipped with electron dispersion spectroscopy to search the tissue for metals. They also were blinded as to which blocks o...

Novel methods to view how a drug attaches to a cell

...article. The nanoparticles can then be imaged with electron microscopy to reveal the location of the drug receptor molecules on the cell," Shelnutt says. "This type of nanotagging technique might be used in non-biological applications as well - such as finding flaws in semiconductor surfaces." Source-Eurekal...

New Research Could Improve Knowledge Of Serious Illnesses

... the University of Bath. It will examine in detail electron spin resonance imaging, a technique used in whole body scanning. They hope that electron spin resonance imaging will eventually take a three-dimensional “snapshot” image of the chemical sta...

Herpes Infects Cornea, Evades Immune Cells

...ulfed by immune cells called phagocytes. "In the electron microscope pictures, it looks like the stroma cells form long arms that reach out and collect the virus particles, and then wrap around them, forming a sac, and bring them into the cell body," Shukla said. In phagocytes, ingested foreign particles ...

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