Chemistry News

Study: Hot Brew Coffee Has More Antioxidants than Cold Brew

This study reveals important fundamental differences between hot and cold brew coffee that may have implications for possible health impacts on drinkers. Image credit: Fxxu.
Nov 8, 2018 by Enrico de Lazaro

According to a new study published in the journal Scientific Reports, the hot brew method extracts more antioxidants from coffee than the cold brew method. This study reveals important fundamental differences between hot and cold brew coffee that may have implications for possible health impacts on drinkers. Image credit: Fxxu. Cold brew coffee — made through a low-temperature, long-contact brewing method — is a popular phenomenon that...

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Top: flowers and seeds of the Chinese violet cress (Orychophragmus violaceus). Bottom: the structures of mono and diunsaturated Nebraskanic (1) and Wuhanic (2) fatty acids; segments of the methyl wuhanate (2a) with fully assigned 13C and 1H resonances are denoted by red boxes and numbered carbons. Image credit: Li et al, doi: 10.1038/s41477-018-0225-7.

Two New ‘Unusual’ Fatty Acids Discovered

Aug 28, 2018 by News Staff

A research team led by the University of Nebraska-Lincoln and Huazhong Agricultural University has identified two new fatty acids — named Nebraskanic...

Magnesite. Image credit: Rob Lavinsky, iRocks.com / CC BY-SA 3.0.

Researchers Find Rapid Way to Make Carbon Dioxide-Storing Mineral Magnesite

Aug 16, 2018 by News Staff

A team of researchers led by Trent University’s Professor Ian Power has developed an accelerated way to produce magnesite (MgCO3) at room temperature...

Micrograph of aspirin polymorphs. Image credit: Chunhua Tony Hu.

New Polymorph of Aspirin Promises More Efficient Pain Relief

Jul 25, 2018 by Enrico de Lazaro

Every compound has different crystal forms with distinct structures and properties called polymorphs. New York University scientist Chunhua Tony Hu and...

Illustration of part of the periodic table of elements with four new elements in period 7, with oganesson specifically highlighted. Image credit: Erin O’Donnell, National Superconducting Cyclotron Laboratory / Andy Sproles, Oak Ridge National Laboratory.

Researchers Explore Limits of the Periodic Table of Elements

Jun 20, 2018 by News Staff

At 150 years old, the periodic table of chemical elements is still growing. In 2016, four new elements with atomic numbers 113, 115, 117 and 118 were added...

A C(60) molecule is included in a disk-shaped anthracene macrocycle. The formation of a Saturn-type complex is facilitated by the shape-size fit and the multipoint CH***pi-contacts. Image credit: Yamamoto et al, doi: 10.1002/anie.201804430.

Chemists Synthesize Molecular ‘Nano-Saturn’

Jun 13, 2018 by News Staff

A team of chemists from the Tokyo Institute of Technology and the Okayama University of Science, Japan, has synthesized a ‘nano-Saturn,’ a molecular...

In the new technique, an additional hexagonal ring of carbon atoms is fused to the zigzag edge of an existing carbon-rich molecule in two quick steps. Image credit: Igor Alabugin.

Chemists Find New Way to Synthesize ‘Olympic Ring’ Molecule

Feb 21, 2018 by News Staff

A team of researchers at Florida State University has unlocked a new strategy for synthesizing of olympicene (a molecule consisting of five rings that...

Gas-phase structure of alpha-pinene was experimentally unveiled, using Fourier transform microwave spectroscopy and quantum chemical calculations. Image credit: Elias M. Neeman.

Scientists Determine Structure of Alpha-Pinene, Major Component of Forest Aroma

Dec 11, 2017 by News Staff

An international team of scientists from France and Spain has accurately determined the gas-phase structure of alpha-pinene, a molecule emitted into the...

Teixobactin eliminates MRSA, Mycobacterium tuberculosis, Streptococcus pneumoniae, Bacillus anthracis and other dangerous pathogens without encountering any detectable resistance. This digitally-colorized, scanning electron microscopic image depicts green-colored, spheroid-shaped MRSA bacteria, as they were in the process of being enveloped by a much larger, human white blood cell. Image credit: National Institute of Allergy and Infectious Diseases.

Chemists Synthesize Two Simplified Forms of Superbug-Killing Antibiotic Teixobactin

Nov 9, 2017 by News Staff

An international team of researchers led by the University of Lincoln, UK, has produced two simplified versions of teixobactin, a powerful natural antibiotic...

Periodic table of the elements.

Periodic Table’s Heaviest Elements Alter Theory of Quantum Mechanics

Oct 4, 2017 by News Staff

An international team of chemists led by Florida State University researchers has found that the theory of quantum mechanics does not adequately explain...

A ‘Blue Marble’ image of the Earth taken from the VIIRS instrument aboard NASA’s Earth-observing satellite Suomi NPP (named in honor of Verner E. Suomi of the University of Wisconsin). This composite image uses a number of swaths of the Earth’s surface taken on January 4, 2012. Image credit: NASA / NOAA / GSFC / Suomi NPP / VIIRS / Norman Kuring.

Researchers Produce Estimate of Earth’s Elemental Composition

Sep 20, 2017 by News Staff

A team of researchers at the Australian National University in Canberra, Australia, has produced the most comprehensive estimate yet of Earth’s composition...

Professor Adamson and co-authors demonstrated the use of an interfacial trapping technique to assemble laterally macroscopic films of pristine graphene that are up to 95% transparent. Image credit: Woltornist et al, doi: 10.1021/nn402371c.

U.S. Chemists Develop, Patent New Process for Synthesis of Pristine Graphene

Aug 30, 2017 by News Staff

A research team at the University of Connecticut, led by Professor Douglas Adamson, has developed and patented a one-of-a-kind process for exfoliating...

A chemically termolecular reaction is a reaction where three different molecules (e.g. H, O2, H) each participate in the breaking and forming of chemical bonds. The reaction is mediated by an ephemeral collision complex (HO2**) formed from the collision of two molecules (H, O2) which then reacts upon colliding with a third molecule (H). Image credit: Michael P. Burke / Columbia Engineering.

New Class of Chemical Reaction Discovered: ‘Chemically Termolecular’ Reactions

Aug 17, 2017 by News Staff

A duo of researchers from Columbia University and Argonne National Laboratory has discovered an entirely new class of chemical reaction, dubbed chemically...

Schematic illustration depicting synthesis of the 3D-hm LSMO catalysts. Image credit: Wang et al.

Step Forward in Engineering High-Efficiency Nanohybrid Catalysts

Jun 1, 2017 by News Staff

Versatile superstructures composed of nanoparticles have recently been prepared using various disassembly methods. However, little information is known...

Santorio’s marginal note to col. 406C-D, in Santorio Santorio, Commentaria in Primam Fen Primi Libri Canonis Avicennae (Venice, 1625). Image credit: British Library.

Venetian Doctor Santorio Santorio Had Key Role in Shaping Early Modern Science

May 29, 2017 by News Staff

Newly discovered handwritten notes show for the first time the Venetian physician Santorio Santorio (1561–1636), who invented the thermometer and helped...

Quasi[1]catenane. Image credit: Steemers et al, doi: 10.1038/ncomms15392.

Chemists Synthesize Pretzel-Like Molecules

May 26, 2017 by News Staff

A team of chemists at the Van ‘t Hoff Institute for Molecular Sciences of the University of Amsterdam, the Netherlands, has designed and synthesized...

A light-activatable 4 x 4 droplet array. Image credit: Restrepo Schild et al, doi: 10.1038/srep46585.

Researchers Create Synthetic, Soft Tissue Retina

May 5, 2017 by News Staff

A synthetic, soft tissue retina developed by researchers at the University of Oxford, UK, could offer fresh hope to visually impaired people. Until now,...

Photograph of X-ray diffraction quality single-crystals of [K(2.2.2-cryptand)]{PuII[C5H3(SiMe3)2]3}, [K(crypt)][PuIICp’’3]. Image credit: Cory J. Windorff et al, doi: 10.1021/jacs.7b00706.

Chemists Discover New Oxidation State of Plutonium

Mar 28, 2017 by News Staff

A team of chemists from the University of California, Irvine, and Los Alamos National Laboratory has created a new oxidation state, Pu+2, of the transuranic...

Microphotograph of the diamond anvil cell high-pressure cavity in reflected and transmitted light at 140 GPa after laser heating to > 1,500 degrees Kelvin. The sample, which consists of mixture of tI19 Na and Na2He, is in contact with He medium that is seen as a transparent area near the edge of the gasket. Image credit: Xiao Dong et al, doi: 10.1038/nchem.2716.

Researchers Create Stable Compound of Helium and Sodium

Feb 7, 2017 by Enrico de Lazaro

An international team of researchers has successfully synthesized a thermodynamically stable compound of sodium and the noble gas helium, Na2He, which...

A watercolor drawing of the durian (Durio zibethinus), c. 1819-1823. The drawing is one of 477 natural history drawings of plants and animals of Malacca and Singapore commissioned by William Farquhar.

Chemists Identify Key Compounds Responsible for Durian’s Pungent Odor

Jan 19, 2017 by Natali Anderson

A team of researchers in Germany has analyzed a set of stinky and fruity chemical ingredients and found that the overall odor of durian pulp could be mimicked...

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