Crystals Current Events

Crystals Current Events, Crystals News Articles.
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Microseeding: A new way to overcome hemihedral twinning?
Twinning, which is a known problem in protein crystallography, usually hampers high-quality crystal structure determination unless it is detected and either avoided or corrected. (2016-12-15)

First opal-like crystals discovered in meteorite
Scientists have found opal-like crystals in the Tagish Lake meteorite, which fell to Earth in Canada in 2000. This is the first extraterrestrial discovery of these unusual crystals, which may have formed in the primordial cloud of dust that produced the sun and planets of our solar system 4.6 billion years ago, according to a report in the Journal of the American Chemical Society. (2011-08-03)

Liquid crystals stabilized
Dutch-sponsored researcher Ioan Paraschiv has stabilised new columnar discotic liquid crystals by making use of hydrogen bonds. This stabilisation approach yielded well-ordered, column-shaped aggregates that can transport charges. Liquid crystals are materials that combine the properties of a liquid with those of crystalline solids. They show a middle phase, known as mesophase or liquid crystalline phase, in which the material has unique characteristics that can be used in liquid crystal display (LCD) screens and solar cells. (2007-01-30)

First-class protein crystals thanks to weightlessness on earth
Dutch chemist Paul Poodt has developed two attractive alternatives for allowing protein crystals to grow under weightless conditions. If the crystals are grown upside down in a strong magnetic field, fluid flows that disrupt crystal growth are suppressed. Therefore, high-quality proteins no longer need to be grown in space, but can be grown here on earth. (2008-04-23)

New strategy to design mechano-responsive luminescent materials
Crystals made from gold complexes change color as they change structure from 'chiral' to 'achiral' when ground. (2017-07-25)

First ever observation of 'time crystals' interacting
For the first time ever, scientists have witnessed the interaction of a new phase of matter known as 'time crystals'. The discovery may lead to applications in quantum information processing. First theorised in 2012 by Nobel Laureate Frank Wilczek and identified in 2016, time crystals exhibit the bizarre property of being in constant, repeating motion in time despite no external input. (2020-08-17)

More effective lasers
A group of professors from the departments of Chemistry, Soil Science, Physics and Applied Mathematics of the University of Navarra is working together in the preparation and characterization of a type of material termed (2005-12-14)

Samarium-doped crystals with 'giant' piezoelectricity
By introducing trace amounts of the element samarium (Sm), researchers greatly enhanced the performance of piezoelectric crystals used in advanced piezoelectric devices like sensors, a new study reports. (2019-04-18)

Colluding with colloids: Scientists make liquid crystal discovery
Findings of Kent State University scientists indicate that manipulating the size of colloids, micron-sized or nanometer-sized particles, can produce huge changes in the material properties of liquid crystals. (2006-12-14)

Keep the light off: A material with improved mechanical performance in the dark
Nagoya University researchers found that zinc sulfide crystals were brittle under normal lighting conditions at room temperature, but highly plastic when deformed in complete darkness. Deformation of zinc sulfide crystals in the dark also narrowed their band gap, which controls electrical conductivity. The team's findings showed the mechanical and electronic properties of inorganic semiconductors are sensitive to light, revealing a possible route to engineer the performance of inorganic semiconductors, which are important in electronics. (2018-05-17)

Large tin monosulfide crystal opens pathway for next generation solar cells
A team at Tohoku University has succeeded in growing large single crystals of tin monosulfide, a material used in next generation solar cells. (2020-08-21)

New report links meteorite to possibility that microscopic life existed on Mars
New scientific evidence reveals that primitive life in the form of bacteria could have existed on Mars. Scientists supported by the National Science Foundation (NSF) have reported that nanometer-sized crystals in a Martian meteorite share several characteristics with those produced by aquatic bacteria on Earth. (2000-12-14)

New sample holder for protein crystallography
An HZB research team has developed a novel sample holder that considerably facilitates the preparation of protein crystals for structural analysis. A short video by the team shows how proteins in solution can be crystallised directly onto the new sample holders themselves, then analysed using the MX beamlines at BESSY II. A patent has already been granted and a manufacturer found. (2019-09-16)

Scientists achieve the first stable simulations of DNA crystals
The breakthrough made by researchers at IRB Barcelona allows the study of the role of each molecular component in the stability and conformation of DNA crystals. (2019-01-21)

Plastic crystals could improve fabrication of memory devices
A novel 'plastic crystal' developed by Hokkaido University researchers has switching properties suitable for memory-related applications. (2016-08-30)

Chemists grow crystals with a twist -- and untwist
Chemists from New York University and Russia's St. Petersburg State University have created crystals that can twist and untwist, pointing to a much more varied process of crystal growth than previously thought. Their work may explain some of the properties of high-polymers, which are used in clothing and liquid crystal displays, among other consumer products. (2010-07-16)

Aperiodic crystals and beyond
Once a contradiction in terms, aperiodic crystals show instead that 'long-range order' has never been defined. Whatever it means, decades of intense research have shown it to be more complex and surprising than anyone suspected. (2015-06-17)

Research could accelerate computing to speed of light
Researchers at the University of Toronto have discovered a new technique to form tiny perfect crystals that have high optical quality, a finding that could usher in a new era of ultra-fast computing and communication using photons instead of electrons. (2002-06-20)

Designer crystals for next-gen electronics
A new process that uses vapor -- rather than liquid -- to grow designer crystals could lead to a new breed of faster, more powerful electronic devices. (2015-12-14)

Strange-behaving crystals could have impact on research, technology
Aperiodic, rule-bending crystals are the focus of an article that appears in the Jan. 4 issue of the journal Science. Co-authors looked at how these aperiodic crystals behave differently from (2008-01-03)

Researchers move step closer to photonic microchip
Researchers at the University of Toronto have figured out a way to (2002-03-18)

The secret microstructure of bone: Insights into what makes it stiff and tough
The detailed structure of bone on a microscopic scale has been revealed. Bone is an impressive natural material because it combines properties which are usually mutually exclusive -- stiffness (for support and leverage) and toughness (for protection and resisting impacts). (2018-05-03)

Blacksmith's secret revealed
In an international study into the fine structure of steel, Technology Foundation STW researchers have revealed how strong steel is formed. By analysing red-hot steel with an x-ray microscope, the researchers discovered how at a temperature of 900 oC, numerous microscopic crystals suddenly developed in the steel. The findings were published in the journal Science on 1 November 2002. (2002-11-15)

Digital enhancement of cryoEM photographs of protein nanocrystals
When cryoEM images are obtained from protein nanocrystals the images themselves can appear to be devoid of any contrast. A group of scientists from the Netherlands have now demonstrated that lattice information can be revealed and enhanced by a specialized filter. (2016-01-21)

A Mismatch Made In Heaven
A cheap and simple method of controlling the size of microscopic semiconductor crystals has been developed by Weizmann Institute researchers. The finding, reported in Advanced Materials, holds a possible key to the development of tiny semiconductors with new optoelectric properties for basic research and for tomorrow's optics and electronics industries. (1997-08-13)

MU scientists discover way to order polar molecules in crystals
Researchers at the University of Missouri-Columbia have found a way to organize molecules in a crystal so that the poles align in the same direction. In preliminary tests, the scientists also have discovered that aligned crystals hold potential to change the frequency of light, making them important to the future of telecommunications and computing. (2007-01-18)

Scientists propose growing better semiconductor crystals in space
Crystals grown in space may be the next big step toward improved semiconductor materials for use in next-generation communication systems and advanced computers, say researchers at the University of Illinois. (2000-05-31)

Almost frictionless
Lubricants in bearings and gear units ensure that not too much energy is lost through friction. Yet it still takes a certain percentage of the energy to compensate for friction losses. Lubricants made of liquid crystals could reduce friction to almost zero. (2008-11-10)

A professor from RUDN University developed new liquid crystals
A professor from RUDN University together with his Indian colleagues synthesized and studied new dibenzophenazine-based liquid crystals that could potentially be used in optoelectronics and solar panels. (2021-01-22)

A braking system for immune responses
For the first time, researchers have identified a receptor on human cells that specifically recognizes crystals. It is found on immune cells and binds uric acid crystals, which trigger gout but also control immune responses. The team, led by researchers from Technische Universitaet Muenchen's Klinikum rechts der Isar hospital have published their findings in the Immunity journal. (2014-03-20)

Yale physicists find signs of a time crystal
Yale physicists have uncovered hints of a time crystal -- a form of matter that 'ticks' when exposed to an electromagnetic pulse -- in the last place they expected: a crystal you might find in a child's toy. (2018-05-02)

High-energy ions' movement affected by silicon crystal periodicity
The thinner the silicon crystal, the easier it is to manipulate the trajectories of very high-energy ions in particle accelerators. Further applications include materials analysis, semiconductor doping and beam transport in large particle accelerators. All of these rely on our understanding of how positively-charged high-energy particles move through crystals. This process, called ion channelling, is the focus of a new paper published in EPJ B by Mallikarjuna Motapothula and Mark Breese working at the National University of Singapore. (2018-03-22)

Volcanoes fed by 'mush' reservoirs rather than molten magma chambers
Volcanoes are not fed by molten magma formed in large chambers finds a new study, overturning classic ideas about volcanic eruptions. (2018-12-04)

Chameleon for optoelectronics
A liquid that changes its color (2007-07-13)

Looking inside nanomaterials in 3 dimensions
On May 13 2011, the journal Science published a paper where scientists from Risoe DTU, in collaboration with scientists from China and the USA, report a new method for revealing a 3-D picture of the structure inside a material. (2011-05-16)

New photonic liquid crystals could lead to next-generation displays
A new technique to change the structure of liquid crystals could lead to the development of fast-responding liquid crystals suitable for next generation displays -- 3D, augmented and virtual reality -- and advanced photonic applications such as mirrorless lasers, bio-sensors and fast/slow light generation, according to an international team of researchers from Penn State, the Air Force Research Laboratory and the National Sun Yat-sen University, Taiwan. (2019-11-07)

'Amazing snapshots' plumb volcanic depths
Research shedding light on the internal 'plumbing' of volcanoes may help scientists better understand volcanic eruptions and unrest. The University of Queensland-led study analyzed crystals in Italy's famous Mount Etna to reveal how quickly magma moves to the surface. (2019-02-28)

Why don't fish freeze to death in icy water?
Microgravity experiments revealed that supercooled water containing antifreeze glycoproteins accelerates and oscillates its ice crystal growth rate, contrary to what was expected. (2017-04-17)

Computer simulations mimic growth of 'dizzy dendrites'
Many of the useful properties associated with metal alloys or polymer blends -- like strength, flexibility and clarity -- stem from a material's specific crystal microstructure. To better understand this microstructure, National Institute of Standards and Technology (NIST) researchers and international collaborators recently used computer simulations of crystal growth to learn how foreign particles affect crystal growth patterns. (2003-06-24)

Beyond graphene: Controlling properties of 2-D materials
Researchers at the University of Manchester have shown how they can control the properties of stacks of two-dimensional materials, opening up opportunities for new, previously-unimagined electronic devices. (2014-04-28)

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