Many neurodegenerative diseases, including Alzheimer's, are characterized by tangled proteins called Tau fibrils. In a new study, MIT chemists have gained insight into how these fibrils form and identified a potential target ...
Jul 17, 2023
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The HIV-1 virus can neutralize cellular defenses with its viral infectivity factor (Vif). OIST researchers Prof. Matthias Wolf and Dr. Takahide Kouno together with an international team of colleagues have now determined the ...
Jul 14, 2023
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Brain tissue is one of the most intricate tissue specimens that scientists have arguably ever dealt with. Packed with an immeasurable amount of information, the human brain is the most sophisticated computational device with ...
Jul 10, 2023
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In a new paper published today in Nature, researchers at the Francis Crick Institute have outlined the structure and function of a protein complex that is required to repair damaged DNA and protect against cancer.
Jun 21, 2023
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Scientists have created one of the most detailed 3D images of the synapse, the important juncture where neurons communicate with each other through an exchange of chemical signals. These nanometer-scale models will help scientists ...
Jun 14, 2023
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EPFL scientists have reproduced key features of pathological protein aggregates found in the brain of patients with Lou Gehrig's disease and other neurological diseases, providing insight into the underlying mechanism and ...
Jun 5, 2023
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It is 7 am, the alarm clock rings—you open your eyes, swing your legs out of bed, give a talk at work, play a tennis match in the evening. Billions of nerve cells that make up the gray matter in our brain allow us to perform ...
May 25, 2023
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An old antibiotic may provide much-needed protection against multi-drug resistant bacterial infections, according to a new study published May 16 in the open access journal PLOS Biology by James Kirby of Harvard Medical School, ...
May 16, 2023
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A mysterious illness causing fevers and headaches and leading to rapid development of acute encephalitis (within a couple of weeks of symptom onset), caused an outbreak of nearly 300 reported cases and over 100 fatalities ...
Apr 20, 2023
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Brains are like puzzles, requiring many nested and co-dependent pieces to function well. The brain is divided into areas, each containing many millions of neurons connected across thousands of synapses. These synapses, which ...
Apr 12, 2023
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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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