Current Diamonds News and Events

Current Diamonds News and Events, Diamonds News Articles.
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A recipe for regenerating bioengineered hair
Scientists have recently developed ways to grow a variety of useful items in laboratories, from meat and diamonds to retinas and other organoids. At the RIKEN Center for Biosystems Dynamics Research in Japan, a team led by Takashi Tsuji has been working on ways to regenerate lost hair from stem cells. In an important step, a new study identifies a population of hair follicle stem cells in the skin and a recipe for normal cyclical regeneration in the lab. (2021-02-10)

The morphological characteristics of precipitation areas affects precipitation intensity
Researchers from USTC studied the morphological characteristics of precipitation areas over Tibetan Plateau and found that morphological characteristics of precipitation areas affects precipitation intensity. (2021-02-02)

Hypnotic suggestions can make a complex task easy by helping vision fill in the blanks
New research demonstrates that hypnosis--the process of focusing a person's attention on a specific task or sensation--can turn a normally difficult visual task into a far easier one by helping individuals mentally ''fill in the gaps'' of missing visual cues. (2021-01-27)

Researchers use nanomaterials to make 2D diamond clusters at room temperature
2D hexagonal boron nitride (h-BN) is a promising material that can undergo transition to strong, super lightweight films. Researchers at the NYU Tandon School of Engineering led by Elisa Riedo have discovered that h-BN in layered, molecule-thin 2D sheets can phase transition to c-BN at room temperature. (2021-01-26)

Crystal close up
Two novel techniques, atomic-resolution real-time video and conical carbon nanotube confinement, allow researchers to view never-before-seen details about crystal formation. The observations confirm theoretical predictions about how salt crystals form and could inform general theories about the way in which crystal formation produces different ordered structures from an otherwise disordered chemical mixture. (2021-01-21)

Diamonds need voltage
Diamonds are fascinating - as jewellery but also because of the extreme hardness of the material. How exactly this variant of carbon is formed deep underground and under extremely high pressures and temperatures remains a mystery. Now, researchers from the Russian Academy of Sciences Novosibirsk, collaborating with the German Research Centre for Geosciences GFZ, have documented a new influencing factor in theory and experiment. Weak electric fields can be a decisive catalyst for its formation (2021-01-21)

Microfabricated elastic diamonds improve material's electronic properties
Overcoming a key obstacle in achieving diamond-based electronic and optoelectronic devices, researchers have presented a new way to fabricate micrometer-sized diamonds that can elastically stretch. (2020-12-31)

Stretching diamond for next-generation microelectronics
Diamond is the hardest material in nature. But out of many expectations, it also has great potential as an excellent electronic material. A joint research team led by City University of Hong Kong (CityU) has demonstrated for the first time the large, uniform tensile elastic straining of microfabricated diamond arrays through the nanomechanical approach. Their findings have shown the potential of strained diamonds as prime candidates for advanced functional devices in microelectronics, photonics, and quantum information technologies. (2020-12-31)

Scientists and philosopher team up, propose a new way to categorize minerals
Minerals are the most durable, information-rich objects we can study to understand our planet's origin and evolution. However, the current classification system leaves unanswered questions for planetary scientists, geobiologists, paleontologists and others who strive to understand minerals' historical context. A new evolutionary approach to classifying minerals complements the existing protocols and offers the opportunity to rigorously document Earth's history. (2020-12-21)

Machine learning boosts the search for 'superhard' materials
Superhard materials are in high demand in industry, from energy production to aerospace, but finding suitable new materials has largely been a matter of trial and error based on classical materials such as diamonds. Now researchers have reported a machine learning model that can accurately predict the hardness of new materials, allowing scientists to more readily find compounds suitable for use in a variety of applications. (2020-12-17)

Experiment to test quantum gravity just got a bit less complicated
Is gravity a quantum phenomenon? That has been one of the big outstanding questions in physics for decades. Together with colleagues from the UK, Anupam Mazumdar, a physicist from the University of Groningen, proposed an experiment that could settle the issue. However, it requires studying two very large entangled quantum systems in freefall. In a new paper, Mazumdar presents a way to reduce background noise to make this experiment more manageable. (2020-12-08)

RUDN University physicists described a new type of amorphous solid bodies
Many substances with different chemical and physical properties, from diamonds to graphite, are made up of carbon atoms. Amorphous forms of solid carbon do not have a fixed crystal structure and consist of structural units--nanosized graphene particles. A team of physicists from RUDN University studied the structure of amorphous carbon and suggested classifying it as a separate type of amorphous solid bodies: a molecular amorphic with enforced fragmentation. (2020-12-02)

Green chemistry: Politecnico di Milano publishes in Chem
The prestigious journal Chem (Cell Press, impact factor: 19.735) publishes the first mechanosynthesis of a molecular crystal with a Borromean topology. The results obtained by the Politecnico di Milano group have shown that mechanosynthesis can be applied to the self-assembly of complex multi-component supramolecular structures such as the Borromean rings, demonstrating, in detail, the mechanism of formation of this complex topology. (2020-11-18)

Scientists defy nature to make insta-bling at room temperature
An international team of scientists has defied nature to make diamonds in minutes in a laboratory at room temperature - a process that normally requires billions of years, huge amounts of pressure and super-hot temperatures. (2020-11-17)

Natural nanodiamonds in oceanic rocks
Natural diamonds can form through low pressure and temperature geological processes on Earth, as stated in an article published in the journal Geochemical Perspectives Letters. (2020-10-16)

Diamonds are a quantum scientist's best friend
New research details the phenomenon of what is called ''triplet superconductivity'' in diamond. Triplet superconductivity occurs when electrons move in a composite spin state rather than as a single pair. This is an extremely rare, yet efficient form of superconductivity that until now has only been known to occur in one or two other materials, and only theoretically in diamonds. (2020-10-07)

Diamonds found with gold in Canada's Far North offer clues to Earth's early history
The presence of diamonds in an outcrop atop an unrealized gold deposit in Canada's Far North mirrors the association found above the world's richest gold mine, according to University of Alberta research that fills in blanks about the thermal conditions of Earth's crust three billion years ago. (2020-10-06)

Geoscience: Cosmic diamonds formed during gigantic planetary collisions
Geoscientists from Goethe University have found the largest extraterrestrial diamonds ever discovered - a few tenths of a millimetre in size nevertheless - inside meteorites. Together with an international team of researchers, they have now been able to prove that these diamonds formed in the early period of our solar system when minor planets collided together or with large asteroids. These new data disprove the theory that they originated deep inside planets - similar to diamonds formed on Earth - at least the size of Mercury (PNAS). (2020-09-29)

Uncovering new understanding of Earth's carbon cycle
A new study led by a University of Alberta PhD student--and published in Nature--is examining the Earth's carbon cycle in new depth, using diamonds as breadcrumbs of insight into some of Earth's deepest geologic mechanisms. (2020-09-23)

Tandon Researchers develop method to create colloidal diamonds
The colloidal diamond could make light waves as useful as electrons in computing, and hold promise for a host of other applications. Researchers let by NYU Tandon Professor David Pine have devised a new process for the reliable self-assembly of colloids in a diamond formation that could lead to cheap, scalable fabrication of such structures. (2020-09-23)

Carbon-rich exoplanets may be made of diamonds
In a new study published recently in The Planetary Science Journal, a team of researchers from Arizona State University and the University of Chicago have determined that some carbon-rich exoplanets, given the right circumstances, could be made of diamonds and silica. (2020-09-11)

Get diamonds, take temperature
Measuring the temperature of objects at a nanometer-scale has been a long challenge, especially in living biological samples, because of the lack of precise and reliable nanothermometers. An international team of researchers has realized a quantum technology to probe temperature on a nanometer-scale, and have observed a 'fever' in tiny nematode worms under pharmacological treatment. This strengthens the connection between quantum sensing and biology and ushers in novel thermal imaging technologies in biomedical research. (2020-09-11)

Japan's geologic history in question after discovery of metamorphic rock microdiamonds
A collaboration of researchers based in Kumamoto University, Japan have discovered microdiamonds in the Nishisonogi metamorphic rock formation in Nagasaki Prefecture, Japan. Microdiamonds in metamorphic rocks are important minerals because they form in continental collision zones and show that the crust has penetrated deeper than 120 km below the surface. This is the second area in the world, after the Italian Alps, that shows microdiamonds can form in metamorphic rocks through subduction of oceanic plates. (2020-09-04)

A new two-dimensional carbon allotrope -- semiconducting diamane film synthesized
We demonstrate the realization of a pristine diamane through diamondization of mechanically exfoliated few-layer graphene via compression. Compared to gapless graphene, semiconducting h-diamane offers exciting possibilities for carbon-based electronic devices. (2020-08-18)

Glass blowing inspires new class of quantum sensors
A glass artist's work with diamonds has opened the door to a new class of quantum sensors able to monitor changes in magnetic fields, with implications for mining and underwater monitoring. (2020-08-12)

Diamonds shine a light on hidden currents in graphene
A new diamond-based quantum sensing technique gives researchers a map of the intricate movement of electricity on a microscopic scale. New results demonstrate the potential of the technique by revealing the fluid-like electrical currents that flow in graphene, a layer of carbon just one atom thick. Graphene has exceptional electrical properties, and the technique could help researchers better understand graphene and other materials and find new uses for them. (2020-07-22)

FSU news: Scientists discover heavy element chemistry can change at high pressures
An international team of researchers has demonstrated how curium -- element 96 in the periodic table and one of the last that can be seen with the naked eye -- responds to the application of high pressure created by squeezing a sample between two diamonds. (2020-07-15)

Building a harder diamond
Scientists at the University of Tsukuba create a theoretical carbon-based material that would be even harder than diamond. This work may have industrial applications for cutting and polishing in place of current synthetic diamond. (2020-07-01)

New materials of perovskite challenge the chemical intuition
Materials scientists have synthesized a new type of perovskite--one of the most common crystal structures of materials deployed for a range of uses, from superconductors to photovoltaics--that goes against conventional thinking about how such structures behave at extreme pressures such as those that exist deep in the Earth. (2020-06-30)

Exotic mixtures
An international research team led by HZDR has now presented a new, very precise method of evaluating the behavior of mixtures of different elements under high pressure with the help of X-ray scattering. The results reinforce the premise that the matter in planets like Neptune and Uranus can alter dramatically: the hot hydrocarbon mixture in the interior of the ice giants can produce a kind of diamond rain. (2020-06-24)

Beneath the surface of our galaxy's water worlds
Scientists have simulated conditions on water-rich exoplanets to learn more about their geological composition, and found a new transition state between rock and water. (2020-06-24)

Quantum diamond sensing
Researchers from the University of Maryland and colleagues report a new quantum sensing technique that allows high-resolution nuclear magnetic resonance spectroscopy on small molecules in dilute solution in a 10 picoliter sample volume -- roughly equivalent to a single cell. (2020-06-17)

Study shows diamonds aren't forever
Two Tulane researchers were among a team of international experts who co-authored a paper that was published in the journal Nature on June 3. (2020-06-04)

New model shows how diamond-carrying rocks formed in Northern Alberta
A new study by University of Alberta geologists is proposing a new model for explaining the eruption of diamond-bearing kimberlites in Northern Alberta. (2020-06-02)

Broadband enhancement relies on precise tilt
If a photon source could be placed on a single chip and made to produce photons at a high rate, this could enable high-speed quantum communication or information processing. In Applied Physics Reviews, a simple on-chip photon source using a hyperbolic metamaterial is proposed, and investigators carried out calculations to show that a prototype arranged in a precise way can overcome problems of low efficiency and allow for high repetition rates for on-chip photon sources. (2020-05-05)

Rubies on sapphire: Recipe for making crystals in flux
The effect of the holding temperature and solubility curve of rubies was elucidated, for Al2O3:Cr in MoO3 from 1050 to 1200. (2020-05-01)

ASU scientists lead study of galaxy's 'water worlds'
In seeking to learn more about Neptune-like exoplanets, an international team of researchers, led by Arizona State University, has provided one of the first mineralogy lab studies for water-rich exoplanets. (2020-04-21)

Fossil record analysis hints at evolutionary origins of insects' structural colors
Researchers from Yale-NUS College in Singapore and University College Cork have analyzed preserved scales from wing cases of two fossil weevils from the Late Pleistocene era to better understand the origin of light-scattering nanostructures present in present-day insects. The study suggests the weevils' colors evolved initially for camouflage amongst their leafy background before diversifying for other functions such as to signal potential mates or deter predators. (2020-04-14)

As electronics shrink to nanoscale, will they still be good as gold?
As circuit interconnects shrink to nanoscale, will the pressure caused by thermal expansion when current flows through wires cause gold to behave more like a liquid than a solid -- making nanoelectronics unreliable? Fortunately, research suggests that chip designers can continue to put their faith in gold. (2020-03-26)

Scientists created an 'impossible' superconducting compound
Scientists have created new superconducting compounds of hydrogen and praseodymium, a rare-earth metal, one substance being quite a surprise from the perspective of classical chemistry. The study helped find the optimal metals for room-temperature superconductors. The results were published in Science Advances. (2020-03-03)

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