matter : material substance that occupies space, has mass, and is composed predominantly of atoms consisting of protons, neutrons, and electrons, that constitutes the observable universe, and that is interconvertible with energy — Webster
Matter is any substance that has mass and takes up space by having volume. All everyday objects that we can touch are ultimately composed of atoms, which are made up of interacting subatomic particles, and in everyday as well as scientific usage, “matter” generally includes atoms and anything made up of them, and any particles (or combination of particles) that act as if they have both rest mass and volume. However it does not include massless particles such as photons, or other energy phenomena or waves such as light or sound.
Matter exists in various states (also known as phases). These include classical everyday phases such as solid, liquid, and gas – for example water exists as ice, liquid water, and gaseous steam – but other states are possible, including plasma, Bose–Einstein condensates, fermionic condensates, and quark–gluon plasma.
Usually atoms can be imagined as a nucleus of protons and neutrons, and a surrounding “cloud” of orbiting electrons which “take up space”. However this is only somewhat correct, because subatomic particles and their properties are governed by their quantum nature, which means they do not act as everyday objects appear to act – they can act like waves as well as particles and they do not have well-defined sizes or positions.
In the Standard Model of particle physics, matter is not a fundamental concept because the elementary constituents of atoms are quantum entities which do not have an inherent “size” or “volume” in any everyday sense of the word. Due to the exclusion principle and other fundamental interactions, some “point particles” known as fermions (quarks, leptons), and many composites and atoms, are effectively forced to keep a distance from other particles under everyday conditions; this creates the property of matter which appears to us as matter taking up space. — Wikipedia
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Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds. Chemistry addresses topics such as how atoms and molecules interact via chemical bonds to form new chemical compounds. — Wikipedia
Everything you’ve learned in school as “obvious” becomes less and less obvious as you begin to study the universe. For example, there are no solids in the universe. There’s not even a suggestion of a solid. There are no absolute continuums. There are no surfaces. There are no straight lines. — R. Buckminster Fuller
Journal of the American Chemical Society: Latest Articles (ACS Publications) latest articles published in Journal of the American Chemical Society
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Journal of the American Chemical SocietyDOI: 10.1021/jacs.2c02009
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Journal of the American Chemical SocietyDOI: 10.1021/jacs.2c03925
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Journal of the American Chemical SocietyDOI: 10.1021/jacs.2c02818
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Journal of the American Chemical SocietyDOI: 10.1021/jacs.2c03872
Nature Chemistry Nature Chemistry is a monthly journal dedicated to publishing high-quality papers that describe the most significant and cutting-edge research in all areas of chemistry. As well as reflecting the traditional core subjects of analytical, inorganic, organic and physical chemistry, the journal features a broad range of chemical research including, but not limited to, bioinorganic and bioorganic chemistry, catalysis, computational and theoretical chemistry, environmental chemistry, green chemistry, medicinal chemistry, organometallic chemistry, polymer chemistry, supramolecular chemistry and surface chemistry. Other multidisciplinary topics such as nanotechnology, chemical biology and materials chemistry are also featured.
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- Catalytic site seeingby Max Mortensen on May 5, 2022 at 12:00 am
Nature Chemistry, Published online: 05 May 2022; doi:10.1038/s41557-022-00943-yUnderstanding how surface structure affects catalyst selectivity is limited by the ability to synthesize atomically precise active-site ensembles. Now, by using intermetallic Pd–Zn, a series of well-defined multinuclear Pd–metal–Pd catalytic sites have been generated and studied, providing insights into their selectivity for the semi-hydrogenation of acetylene.
Geochemistry News -- ScienceDaily Earth and Climate Chemistry. Full text articles on organic and inorganic chemistry in the environment. Updated daily.
- New light on organic solar cellson May 17, 2022 at 12:30 pm
Efficient and environmentally friendly solar cells are required for a transition to a fossil-free energy supply. Researchers at have now mapped how energy flows in organic solar cells, something that previously had been unknown.
- Seeing molecules inside a nanometer-sized...on May 16, 2022 at 4:40 pm
Researchers have successfully developed a new technique allowing them to observe gas molecules packing into metal-organic frameworks (MOF) using infrared spectroscopy. Their innovation was to measure polarized light absorption of guest molecules in a MOF film to deduce molecule alignment using this common piece of lab equipment. This method is the first to show guest alignment and does so in real-time, while using an accessible and easily adoptable experimental setup.
- Traveling to the centre of planet Uranus:...on May 11, 2022 at 4:35 pm
Jules Verne could not even dream of this: A research team has pushed the boundaries of high-pressure and high-temperature research into cosmic dimensions. For the first time, they have succeeded in generating and simultaneously analyzing materials under compression pressures of more than one terapascal (1,000 gigapascals). Such extremely high pressures prevail, for example, at the center of the planet Uranus; they are more than three times higher than the pressure at the center of the Earth.
- Small, mini, nano: Gear units created from a few...on May 11, 2022 at 12:57 pm
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- Machine learning framework IDs targets for...on May 11, 2022 at 12:57 pm
Chemists have developed a new machine-learning (ML) framework that can zero in on which steps of a multistep chemical conversion should be tweaked to improve productivity. The approach could help guide the design of catalysts -- chemical 'dealmakers' that speed up reactions.
Scientific American - Chemistry Science news and technology updates from Scientific American
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Physicists have finally solved the long-standing mystery of why water moves faster through narrower nanotubes -- Read more on ScientificAmerican.com
Chemistry News - Biochemistry, Polymers, Materials Science The latest news stories on chemistry, biochemistry, polymers, materials science from Phys.org
- Scientists nail down 'destination' for protein...on May 17, 2022 at 3:00 pm
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- Going beyond Mother Nature's molecules to target...on May 17, 2022 at 12:27 pm
Lawrence Livermore National Laboratory (LLNL) scientists and collaborators at Penn State University are improving natural molecules that would help target specific radioactive elements that are found in nuclear waste or used in nuclear medicine.
- New theory promises to reshape how we think about...on May 16, 2022 at 8:23 pm
Polymer scientists at the University of Massachusetts Amherst recently announced in the journal Nature Communications that they have solved a longstanding mystery surrounding a nanoscale structure, formed by collections of molecules, called a double-gyroid. This shape is one of the most desirable for materials scientists, and has a wide range of applications; but until now, a predictable understanding of how these shapes form has eluded researchers.
- Converting CO2 to formic acid using an...on May 16, 2022 at 2:47 pm
Photoreduction of CO2 into transportable fuel like formic acid (HCOOH) is a great way of dealing with CO2's rising levels in the atmosphere. To aid in this mission, a research team from Tokyo Tech chose an easily available iron-based mineral and loaded it onto an alumina support to develop a catalyst that can efficiently convert CO2 into HCOOH with ~90% selectivity.
- Improving ion transmission efficiency of mass...on May 16, 2022 at 2:23 pm
A recent study by researchers from the Hefei Institutes of Physical Science and published in Analytical Chemistry presents a novel electrostatic field ion funnel focusing technology called direct current (DC)-ion funnel. It realizes ion focusing with only a DC electric field, thus improving the sensitivity of mass spectrometers.
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