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The solution to a 7-decade mystery is crystal-clear to FSU chemist
A Florida State University researcher has helped solve a scientific mystery that stumped chemists for nearly seven decades. In so doing, his team's findings may lead to the development of more-powerful computer memories and lasers. (2007-10-19)

The role of sleep in brain development
Marcos Frank, Ph.D., associate professor of Neuroscience at the University of Pennsylvania School of Medicine, will present information on early brain development and the importance of sleep during early life when the brain is rapidly maturing and highly changeable. (2010-02-21)

Immune reaction to metal debris leads to early failure of joint implants
Researchers at Rush University Medical Center have identified a key immunological defense reaction to the metals in joint replacement devices, leading to loosening of the components and early failure. (2009-03-04)

Oceans' acidity influences early carbon dioxide and temperature link estimates
An international team of geoscientists believes that carbon dioxide, and not changes in cosmic ray intensity, was the factor controlling ancient global temperatures. The new findings resulted from the researchers inclusion of the ocean's changing acidity in their calculations. (2004-03-16)

The secret life of proteins
Researchers have identified a new and unusual role for a key player in the human immune system. A protein initially believed to regulate one routine function within the cell has proven vital for another critical step in the activation of the immune system. (2012-01-27)

Physiological mechanisms leading to enterovirus opening revealed
Enteroviruses are one of the most common human pathogens leading to high number of acute and chronic infections worldwide. The physiological events leading to successful enterovirus infection are still poorly understood. Researchers at the Nanoscience Center at the University of Jyväskylä and at the University of Helsinki have found significant new information concerning the role of Albumin and ions in host cell vesicles that promote genome release and efficient infection. The research was published in the Journal of Virology in August. (2019-08-16)

Toward an ultrahigh energy density capacitor
Researchers at Berkeley Lab and UC Berkeley have demonstrated that a common material can be processed into a top-performing energy storage material. Their discovery could improve the efficiency, reliability, and robustness of personal electronics, wearable technologies, and car audio systems. (2020-08-19)

New ion trap to create the world's most accurate mass spectrometer
Mass spectrometers are widely used to analyze highly complex chemical and biological mixtures. Skoltech scientists have developed a new version of a mass spectrometer that uses rotation frequencies of ionized molecules in strong magnetic fields to measure masses with higher accuracy (FT ICR). The team has designed an ion trap that ensures the utmost resolving power in ultra-strong magnetic fields. (2021-01-28)

Scientists set traps for atoms with single-particle precision
In a paper published today in the journal Science, researchers from MIT and Harvard report on a new method that enables them to use lasers as optical 'tweezers' to pick individual atoms out from a cloud and hold them in place. As the atoms are 'trapped,' the scientists use a camera to create images of the atoms and their locations. (2016-11-03)

Dispelling a misconception about Mg-ion batteries
Berkeley Lab researchers, working under the JCESR Energy Hub, used supercomputer simulations to dispel a popular misconception about magnesium-ion batteries that should help advance the development of multivalent ion battery technology. (2014-10-16)

Helium raises resolution of whole cell imaging
Now, a new study published by Cell Press in the Oct. 4 issue of Biophysical Journal demonstrates that microscopy with helium ions may greatly enhance both surface and sub-cellular imaging. (2011-10-03)

From tobacco to cyberwood
Scientists from ETH Zurich have developed a thermometer that is at least 100 times more sensitive than previous temperature sensors. It consists of a bio-synthetic hybrid material of tobacco cells and nanotubes. (2015-03-30)

Researchers measure how specific atoms move in dielectric materials
Researchers have measured the behavior of specific atoms in dielectric materials when exposed to an electric field. The work advances our understanding of dielectric materials, which are used in a wide variety of applications -- from handheld electronics to defibrillators. (2015-10-01)

The first image of a new gaseous component in a planetary nebula
Stars end their lives, mainly, in two ways: as supernovae and planetary nebulae. In both cases they throw out into the interstellar medium the chemical elements synthesized in their interiors. Knowing the composition of this gas gives us vital information for understanding the chemical evolution of our Galaxy and the universe. New contributions have been made with images obtained taken by the Gran Telescopio CANARIAS at the Roque de los Muchachos Observatory. (2016-07-07)

Successful calculation of human and natural influence on cloud formation
Researchers have now used the results from the CLOUD Experiment at Cern for the first time to calculate the production of aerosol particles in all the Earth's regions and at different heights. The study is published in the journal 'Science'. (2016-11-08)

Scientist creates new hypothesis on ocean acidification
A Researcher at the Hawai'i Institute of Marine Biology, an organized research unit in the University of Hawai'i at Mānoa's School of Ocean and Earth Science and Technology has come up with a new explanation for the effects of ocean acidification on coral reefs. (2011-08-29)

Low-cost battery from waste graphite
Lithium ion batteries are flammable and the price of the raw material is rising. Are there alternatives? Yes: Empa and ETH Zürich researchers have discovered promising approaches as to how we might produce batteries out waste graphite and scrap metal. (2017-10-11)

Protein defect leaves sperm chasing their tails
A team led by researchers from Osaka University have characterized a protein, called VSP, that keeps sperm swimming in straight lines. Deletion of the protein caused sperm to swim in circles, significantly reducing fertilization rates. VSP also controlled the influx of calcium ions into the flagellum, which is necessary for propulsion of the sperm towards the egg. The researchers hope that their discovery will aid in the development of fertility treatments to enhance sperm motility. (2019-12-02)

'Growing' active sites on quantum dots for robust H2 photogeneration
Chinese researchers had achieved site- and spatial- selective integration of earth-abundant metal ions in semiconductor quantum dots (QDs) for efficient and robust photocatalytic H2 evolution from water. (2020-07-07)

DNA molecules directly interact with each other based on sequence, study finds
Proteins play a large role in DNA regulation, but a new study finds that DNA molecules directly interact with one another in a way that's dependent on the sequence of the DNA and epigenetic factors. This could have implications for how DNA is organized in the cell and even how genes are regulated in different cell types, the researchers say. (2016-03-22)

Orange juice is better than lemonade at keeping kidney stones away
A daily glass of orange juice can help prevent the recurrence of kidney stones better than other citrus fruit juices such as lemonade, researchers at UT Southwestern Medical Center have discovered. (2006-08-31)

Penn team studies nanocrystals by passing them through tiny pores
An interdisciplinary team of University of Pennsylvania researchers has now applied a cutting-edge technique for rapid gene sequencing toward measuring other nanoscopic structures. By passing nanoscale spheres and rods through a tiny hole in a membrane, the team was able to measure the electrical properties of those structures' surfaces. Their findings suggest new ways of using this technique, known as 'nanopore translocation,' to analyze objects at the smallest scale. (2014-09-26)

Writing graphene circuitry with ion 'pens'
Researchers coax graphene to grow in previously defined patterns, offering a promising new tool in the quest to develop graphene-based electronic devices. (2012-03-27)

Spectroscopy for the real world
One good thing leads to another. A team of scientists used a first-of-its-kind spectroscopy system at the U.S. Department of Energy's Advanced Light Source (ALS) at Lawrence Berkeley National Laboratory to obtain the first direct observations of negatively charged ions accumulating on the surfaces of salt solutions. (2005-01-31)

Laser heating -- new light cast on electrons heated to several billion degrees
A new class of high power lasers can effectively accelerate particles like electrons and ions with very intense, short laser pulses. Physicists at the Helmholtz-Zentrum Dresden-Rossendorf have developed a new theoretical model for predicting the density and temperature of hot electrons which surpasses existing models in accurately describing experimental results and simulations. (2011-11-21)

Helium 'balloons' offer new path to control complex materials
Researchers have developed a new method to manipulate a wide range of materials and their behavior using only a handful of helium ions. (2015-06-26)

How living cells solved a needle in a haystack problem to produce electrical signals
Scientists have figured out how cells do the improbable: pick the charged calcium ions out of vast sodium sea to generate electrical signals. The speed and accuracy of this selection is crucial to the beating of the heart and the flow of nerve impulses in the brain. The finding is likely to assist the development of new drugs, such as safer medications for chronic pain. (2013-11-24)

Scientists make breakthrough in ion-conducting composite membranes
Chinese researchers under the direction of Professors LI Xianfeng and ZHANG Huamin from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences recently developed an ultrathin ion-conducting membrane with high selectivity and conductivity that can boost the power of flow batteries. (2020-01-07)

New state-of-the-MOF materials
Metal-organic frameworks (MOFs) are porous, crystalline materials that can trap compounds within their molecular cavities, giving them a wide range of applications in gas storage and separation, carbon capture, and in the catalysis of chemical reactions, to name a few. A new range of applications are now being investigated by converting crystalline MOFs into liquid and/or glassy states. (2020-02-28)

Handles and holes in abstract spaces: how a material conducts electricity better
A new theory has succeeded in establishing a new relationship between the presence or absence of 'handles' in the space of the arrangements of atoms and molecules that make up a material, and the propensity of the latter to conduct electricity. The insulating materials 'equipped with handles' can conduct electricity as well as metals, while retaining typical properties of insulators, such as transparency. (2020-11-13)

A new perceptually-consistent method for MSI visualization
Skoltech scientists have proposed a Mass Spectrometry Imaging (MSI) method leveraging the unique features of human vision (2021-02-11)

NIST ion duet offers tunable module for quantum simulator
Physicists at the National Institute of Standards and Technology have demonstrated a pas de deux of atomic ions that combines the fine choreography of dance with precise individual control. The ion duet, described in the Aug. 7 issue of Nature, is a component for a flexible quantum simulator that could be scaled up in size and configured to model quantum systems of a complexity that overwhelms traditional computer simulations. (2014-08-06)

Stretch and relax! -- Losing 1 electron switches magnetism on in dichromium
An international team of scientists from Berlin, Freiburg and Fukuoka has provided the first direct experimental insight into the secret quantum life of dichromium. Whereas in its normal state the 12 valence electrons form a strong multiple bond between the two chromium atoms, removing only one electron changes the situation dramatically: 10 electrons localize and align their spins, thus resulting in ferromagnetic behavior of the dichromium-kation. The bonding is done by one electron only, resulting in a much weaker bond. (2015-02-23)

NASA's MMS finds its first interplanetary shock
NASA's MMS mission just made the first high-resolution measurements of an interplanetary shockwave launched from the sun. (2019-08-08)

Researchers track how bacteria purge toxic metals
Cornell researchers combined genetic engineering, single-molecule tracking and protein quantitation to get a closer look at this mechanism and understand how it functions. The knowledge could lead to the development of more effective antibacterial treatments. (2020-05-28)

The key to lowering CO2 emissions is made of metal
Researchers at Osaka City University produce malic acid, which contains 4 carbon atoms, through artificial photosynthesis by simply adding metal ions like aluminum and iron. This solves a problem with current artificial photosynthesis technology of only producing molecules with 1 carbon atom and paves the way to exploring the use of CO2 as a raw material. (2020-09-28)

Making plants better lovers: Scientists find gene responsible for reproductive success in plants
The birds do it, the bees do it, and now researchers have discovered how plants can do it better. Published in Genes & Development, researchers have discovered that the presence of a potassium ion channel in pollen increases reproductive success. Dr. Sentenac and colleagues conclude that the SPIK potassium ion channel increases pollen competitive ability by facilitating the rapid elongation of the pollen tube, and therefore helps to ensure the reproductive success of pollen grain. (2002-01-31)

NASA study finds solar storms could spark soils at moon's poles
Powerful solar storms can charge up the soil in frigid, permanently shadowed regions near the lunar poles, and may possibly produce 'sparks' that could vaporize and melt the soil, perhaps as much as meteoroid impacts, according to NASA-funded research. This alteration may become evident when analyzing future samples from these regions that could hold the key to understanding the history of the moon and solar system. (2017-01-06)

Tunneling out of the surface
A new chemical reaction pathway on titanium dioxide has been discovered. The reaction mechanism involves the application of an electric field that narrows the width of the reaction barrier, thereby allowing hydrogen atoms to tunnel away from the surface. This opens the way for the manipulation of the atomic-scale transport channels of hydrogen, which could be important in hydrogen storage. (2015-07-09)

New 'control knobs' for stem cells identified
Natural changes in voltage that occur across the membrane of adult human stem cells act as a signal to delay or accelerate the decision of a stem cell to differentiate into a specific cell type. This discovery gives scientists in regenerative medicine a new set of (2008-12-03)

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