News tagged with electron microscopy
(Medical Xpress)—Like finally seeing all the gears of a watch and how they work together, researchers from UCLA and UC Berkeley have, for the first time ever, solved the puzzle of how the various components ...
Medical research Apr 12, 2013 | 5 / 5 (15) | 2 |
(Medical Xpress)—The endothelium, the cellular layer lining the body's blood vessels, is extremely resilient. Measuring just a few hundred nanometers in thickness, this super-tenuous structure routinely ...
Medical research May 16, 2013 | 4 / 5 (2) | 1 |
A key building block in the Schmallenberg virus could be targeted by anti-viral drugs, according to a new study led from the University of Leeds.
Medical research Apr 17, 2013 | not rated yet | 0 |
Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, and the findings represent a new approach for designing vaccines against the aggressive ...
Diseases, Conditions, Syndromes Apr 11, 2013 | 5 / 5 (1) | 0 |
Researchers at the University of California, San Diego School of Medicine say overexpression of a protein called alpha-synuclein appears to disrupt vital recycling processes in neurons, starting with the ...
Parkinson's & Movement disorders Feb 07, 2013 | 5 / 5 (2) | 0 |
(Medical Xpress)—A new form of iron may hold the clue that leads to treatment for a fatal inherited nervous system disease that can cause gait disturbance, speech problems, heart disease, diabetes and other ...
Medical research Nov 23, 2012 | 5 / 5 (4) | 0 |
A team of neuroscientists has proposed a new and potentially revolutionary way of obtaining a neuronal connectivity map (the "connectome") of the whole brain of the mouse. The details are set forth in an essay published October ...
Neuroscience Oct 23, 2012 | 5 / 5 (5) | 1 |
What happens in the brain when we see, hear, think and remember? To be able to answer questions like this, neuroscientists need information about how the millions of neurons in the brain are connected to ...
Neuroscience Oct 23, 2012 | 3.5 / 5 (6) | 1 |
(Medical Xpress)—Researchers at the University of Michigan have determined how the hormone leptin, an important regulator of metabolism and body weight, interacts with a key receptor in the brain.
Medical research Oct 11, 2012 | 5 / 5 (2) | 0 |
(Medical Xpress) -- Scientists have discovered that the inflammation in the surrounding tissue of patients with failing chromium-cobalt metal-on-metal (MOM) implants is caused by the release of The Cobalt ...
Medical research Jul 04, 2012 | 5 / 5 (1) | 0 |
Researchers from the University of Zurich have found a cellular brake that protects cancer cells from chemotherapy -- and they demonstrate which medication can be used to render it inoperative. Their study published in the ...
Cancer Mar 05, 2012 | 5 / 5 (2) | 0 |
A small clinical trial led by researchers at UC San Diego School of Medicine and VA San Diego Healthcare System (VASDHS) found that patients with advanced heart failure and type 2 diabetes showed improved mitochondrial structure ...
Health Mar 02, 2012 | 5 / 5 (4) | 0 |
New research by scientists at the University of Southampton could lead to the design of more effective drugs to combat malaria.
Medical research Jan 27, 2012 | not rated yet | 0 |
An international team of scientists led by UC Davis researchers has discovered that DNA repair in cancer cells is not a one-way street as previously believed. Their findings show instead that recombination, an important DNA ...
Cancer Oct 23, 2011 | 5 / 5 (1) | 0 |
She's a biologist investigating microbial genomics. He studies protein structures using electron microscopy. Put them together and their research opens doors.
Medical research Jun 06, 2011 | 4 / 5 (1) | 0 |
An electron microscope is a type of microscope that uses a particle beam of electrons to illuminate a specimen and create a highly-magnified image. Electron microscopes have much greater resolving power than light microscopes that use electromagnetic radiation and can obtain much higher magnifications of up to 2 million times, while the best light microscopes are limited to magnifications of 2000 times. Both electron and light microscopes have resolution limitations, imposed by the wavelength of the radiation they use. The greater resolution and magnification of the electron microscope is because the wavelength of an electron; its de Broglie wavelength is much smaller than that of a photon of visible light.
The electron microscope uses electrostatic and electromagnetic lenses in forming the image by controlling the electron beam to focus it at a specific plane relative to the specimen. This manner is similar to how a light microscope uses glass lenses to focus light on or through a specimen to form an image.
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