Hemp compounds identified by Oregon State University research via a chemical screening technique invented at OSU show the ability to prevent the virus that causes COVID-19 from entering human cells.
Jan 11, 2022
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Rocky and Marley are used to the company of scientists. Like many other members of their species, the two llamas, living in pastures in rural Massachusetts, have for many years participated in research aimed to harness the ...
Jun 12, 2020
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(Medical Xpress) -- An important step towards developing a rapid, inexpensive diagnostic method for autism has been take by Uppsala University, among other universities. Through advanced mass spectrometry the researchers ...
Mar 23, 2012
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When immune cells detect harmful pathogens or cancer, they mobilise and coordinate a competent defence response. To do this effectively immune cells must communicate in a way that is tailored to the pathogenic insult. Consequently, ...
Sep 17, 2019
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Scientists at The University of Manchester have taken an important step towards finding a treatment for age-related macular degeneration (AMD), the most common form of adult blindness in the developed world. The researchers ...
May 17, 2022
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An international team of researchers has analyzed how SARS-CoV-2, the virus that causes COVID-19, hijacks the proteins in its target cells. The research, published in the journal Cell, shows how the virus shifts the cell's ...
Jun 29, 2020
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A blood test developed at Washington University School of Medicine in St. Louis has proven highly accurate in detecting early signs of Alzheimer's disease in a study involving nearly 500 patients from across three continents, ...
Feb 22, 2022
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In the past decade, researchers have begun to appreciate the importance of a two-way communication that occurs between microbes in the gastrointestinal tract and the brain, known as the gut–brain axis. These "conversations" ...
Jan 13, 2023
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The entry of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into human cells is an essential step for virus transmission and development of COVID 19. Although the lung epithelial cells are its initial target, ...
Jan 26, 2022
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A new paper in Nature Communications reveals new insights into adaptations made by cancer cells to rewire their metabolism to achieve growth and survive. Among the discoveries include a challenge to a well-known feature in ...
Mar 23, 2022
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Mass spectrometry (MS) is an analytical technique for the determination of the elemental composition of a sample or molecule. It is also used for elucidating the chemical structures of molecules, such as peptides and other chemical compounds. The MS principle consists of ionizing chemical compounds to generate charged molecules or molecule fragments and measurement of their mass-to-charge ratios. In a typical MS procedure:
MS instruments consist of three modules: an ion source, which can convert gas phase sample molecules into ions (or, in the case of electrospray ionization, move ions that exist in solution into the gas phase); a mass analyzer, which sorts the ions by their masses by applying electromagnetic fields; and a detector, which measures the value of an indicator quantity and thus provides data for calculating the abundances of each ion present. The technique has both qualitative and quantitative uses. These include identifying unknown compounds, determining the isotopic composition of elements in a molecule, and determining the structure of a compound by observing its fragmentation. Other uses include quantifying the amount of a compound in a sample or studying the fundamentals of gas phase ion chemistry (the chemistry of ions and neutrals in a vacuum). MS is now in very common use in analytical laboratories that study physical, chemical, or biological properties of a great variety of compounds.
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