Research at the University of Leicester is offering new clues into how and why cognitive functions such as memory and learning become impaired with age. A paper published recently in a specialist neuroscience journal shows ...
Aug 12, 2019
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A relatively simple and inexpensive method may be used to determine whether a lung cancer patient is a candidate for crizotinib therapy, according to research published in the August issue of the Journal of Thoracic Oncology, ...
Aug 2, 2011
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Those fluorescent lights hanging above your cubicle might be making you sick, depressed and obese, according to ex-NASA scientist Robert Soler.
Jan 28, 2019
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A Columbia Engineering team has developed a technology that could replace conventional biopsies and histology with real-time imaging within the living body. Described in a new paper published today in Nature Biomedical Engineering, ...
Mar 28, 2022
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(Medical Xpress) -- Optically monitoring the brain’s neuronal activity can be accomplished in several ways, including electrochromic dyes, hydrophobic anions, calcium imaging, or voltage-sensitive ion channels. Fluorescence ...
Using a fluorescent probe that lights up when brain cells are electrically active, MIT and Boston University researchers have shown that they can image the activity of many neurons at once, in the brains of mice.
Oct 9, 2019
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Disruption of the circadian clocks that keep the body and its cells entrained to the 24-hour day-night cycle plays a critical role in weight gain, according to a pair of studies by Weill Cornell Medicine investigators.
Aug 8, 2022
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Zinc is one of those micronutrients that many people know they need but are otherwise a little vague on the particulars.
Jul 26, 2023
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Northwestern University neuroscientists now can read the mind of a fly. They have developed a clever new tool that lights up active conversations between neurons during a behavior or sensory experience, such as smelling a ...
Dec 4, 2015
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Scientific breakthroughs don't always happen in labs. For Sophia and Richard Lunt, Michigan State University researchers, many of their breakthroughs happen during neighborhood walks.
Oct 25, 2019
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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.
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