Researchers have discovered that the hepatitis E virus is associated with sperm in pigs, which suggests the virus may be both sexually transmitted and linked to male infertility, according to a new study published in PLOS ...
Jun 18, 2024
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A glowing marker dye that sticks to prostate cancer cells could help surgeons to remove them in real-time, according to a paper published in the European Journal of Nuclear Medicine and Molecular Imaging, titled "First‑in‑man ...
Jun 9, 2024
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In the relentless fight against cancer, a new technology promises to shed light on how we track and understand the spread of this disease within the body. A research team from Northeastern University and Dartmouth College ...
Jun 7, 2024
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Human skin, hair and nails are all vulnerable to fungal infections. While these infections are usually not serious, they're difficult to fully resolve and often recur after treatment—sometimes for years. They're also often ...
Jun 5, 2024
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Implants that steadily release the right dose of a drug directly to the target part of the body have been a major advance in drug delivery. However, they still face some key challenges, such as ensuring the drug is released ...
Jun 3, 2024
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The brain's ability to rid itself of toxins may actually be reduced during sleep, contrary to the leading scientific theory.
May 13, 2024
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Malignant primary brain tumors are the leading cause of cancer deaths among children and young adults with few therapeutic options. Treatments are limited by the blood–brain barrier, a unique structure within the brain ...
May 9, 2024
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In an effort to improve delivery of costly medical treatments, a team of researchers in electrical engineering at the University of Wisconsin–Madison has developed a stimulating method that could make the human body more ...
Apr 30, 2024
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Through millions of years of evolutionary refinement, the human body has developed a sophisticated surveillance mechanism—the immune system. This intricate network is constantly scanning the body for invaders such as bacteria, ...
Apr 17, 2024
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Alzheimer's disease and Parkinson's disease, along with stroke, are among the top three neurodegenerative disorders, characterized by the malfunction and progressive degeneration of neurons. Understanding the mechanisms underlying ...
Apr 8, 2024
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Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation of a different wavelength. It is a form of luminescence. In most cases, emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. However, when the absorbed electromagnetic radiation is intense, it is possible for one electron to absorb two photons; this two-photon absorption can lead to emission of radiation having a shorter wavelength than the absorbed radiation.
The most striking examples of fluorescence occur when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, and the emitted light is in the visible region.
Fluorescence has many practical applications, including mineralogy, gemology, chemical sensors (fluorescence spectroscopy), fluorescent labelling, dyes, biological detectors, and, most commonly, fluorescent lamps.
This text uses material from Wikipedia, licensed under CC BY-SA
