Medical research

A new approach to fighting the Marburg virus

A research team led by Kyoto University is attempting to take the Marburg virus by its horns using recently gained knowledge of its core structure.

Neuroscience

Functioning of antibodies in autoimmune encephalitis deciphered

Using a state-of-the-art method, researchers at DZNE and the University of Texas have succeeded for the first time at unraveling the effects of autoimmune antibodies that are directed against the brain in detail at the atomic ...

Medical research

Targeting a human protein to squash SARS-CoV-2, other viruses

More than two years into the COVID-19 pandemic, people are realizing that the "new normal" will probably involve learning to co-exist with SARS-CoV-2. Some treatments are available, but with new variants emerging, researchers ...

Diseases, Conditions, Syndromes

Scientists reveal how 35B5 antibody neutralizes SARS-CoV-2 Omicron

Since November 2021, the SARS-CoV-2 Omicron has spread expeditiously all over the world and gradually superseded the previous attention-capturing the SARS-CoV-2 variants of concern (VOCs). The Omicron variant harbors more ...

Neuroscience

Widespread brain receptor hides surprising mechanism of action

One of the most important molecules in the brain doesn't work quite the way scientists thought it did, according to new work by researchers at Columbia University Vagelos College of Physicians and Surgeons and Carnegie Mellon ...

Cardiology

Insights into the dynamic ultrastructure of the heart

What happens below the cellular level when the heart contracts and relaxes has long been unexplored. Thanks to new ultra-high-resolution electron microscopy techniques, scientists can now watch the heart beating at almost ...

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Electron microscope

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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