In a study published in Eco-Environment & Health, researchers screened German drinking water for 26 per- and polyfluoroalkyl substances (PFAS). This effort, notably supported by residents, marks a significant step in understanding ...
Environment
5 hours ago
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25
In a world where the intricacies of molecular biology often seem as vast and mysterious as the cosmos, a new study delves into the microscopic universe of proteins, unveiling a fascinating aspect of their existence. This ...
Molecular & Computational biology
Jan 22, 2024
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46
One way that cells communicate with one another is through the secretion and uptake of extracellular vesicles (EVs). EVs convey a multitude of cargoes, including proteins, lipids and nucleic acids. Their uptake affects the ...
Biochemistry
Jan 19, 2024
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64
A team led by Prof. Song Xianjun from the Institute of Botany of the Chinese Academy of Sciences, while researching a ternary protein complex in rice nuclei that affects grain size, has shown that the transcription factor ...
Molecular & Computational biology
Jan 17, 2024
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1
Lithium bis(trifluoromethanesulfonyl)imide, commonly known as LiTFSI, and its analogs, are critical electrolytes for lithium batteries and solar cells. However, the commercialization of LiTFSI through thermal chemical synthesis ...
Analytical Chemistry
Jan 16, 2024
0
1
Using a new technology developed at MIT, diagnosing lung cancer could become as easy as inhaling nanoparticle sensors and then taking a urine test that reveals whether a tumor is present.
Bio & Medicine
Jan 5, 2024
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153
Rocket propulsion technology has progressed leaps and bounds since the first weaponized rockets of the Chinese and Mongolian empires. They were nothing more than rocket-powered arrows and spears but they set the foundations ...
Space Exploration
Jan 2, 2024
0
42
Down syndrome, a congenital disorder stemming from abnormal cell division and differentiation, is most common in newborns fated to neurodevelopmental delays and other health complications.
Cell & Microbiology
Dec 19, 2023
0
14
A new study in Nature reports an AI-driven advance in biotechnology with implications for drug development, disease detection, and environmental monitoring. Scientists at the Institute for Protein Design at the University ...
Biotechnology
Dec 18, 2023
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85
Important signaling molecules called phospholipids are active throughout cells in small compartments called condensates, rather than functioning primarily in cell membranes as previously thought, according to a study from ...
Cell & Microbiology
Dec 14, 2023
0
61
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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