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UrduThe ability to turn on and off a physical process with just one photon is a fundamental building block for quantum photonic technologies. Realizing this in a chip-scale architecture is important for scalability, which amplifies a breakthrough by City College…
Tag: Molecular Physics
‘Planar and curved’ pyrrole-fused azacoronenes
Effect of 3D sructures on π-electron functions
Study paves the way for new photosensitive materials
Photocatalysts are useful materials, with a myriad of environmental and energy applications, including air purification, water treatment, self-cleaning surfaces, pollution-fighting paints and coatings, hydrogen production and CO2 conversion to sustainable fuels. An efficient photocatalyst converts light energy into chemical energy…
Transport phenomena at the nanoscale
Transient grating spectroscopy is an elegant method that uses two laser pulses to activate a medium by creating an interference pattern made of parallel stripes of excitations that can be thermal, electronic, magnetic or even structural. The modulation depth of…
Study could lead to production of more efficient optoelectronic devices
Resonant-tunneling diodes are used in high-frequency oscillators, wave emitters and detectors, logic gates, photodetectors, and optoelectronic circuits. The study was a collaboration between Brazilian and German researchers.
Petra Fromme honored with the prestigious Anfinsen Award
Arizona State University researcher Petra Fromme has received the 2021 Christian B. Anfinsen Award. The honor is bestowed by The Protein Society, the premier international association dedicated to supporting protein research. In presenting Fromme with this prestigious prize, the Protein…
Visionary bone damage study
X-rays confirm promise of new luminescent markers
3D design leads to first stable and strong self-assembling 1D nanographene wires
Nanographene is flexible, yet stronger than steel. With unique physical and electronic properties, the material consists of carbon molecules only one atom thick arranged in a honeycomb shape. Still early in technological development, current fabrication methods require the addition of…
Researchers develop third and final ‘made-to-order’ nanotube synthesis technique
The current method of manufacturing carbon nanotubes–in essence rolled up sheets of graphene–is unable to allow complete control over their diameter, length and type. This problem has recently been solved for two of the three different types of nanotubes, but…
A successful phonon calculation within the Quantum Monte Carlo framework
Scientists expand the scope of the quantum Monte Carlo framework by reducing the error in calculation of atomic forces in solids
Findings offer ‘recipe’ for fine tuning alloys for high-temperature use
Superalloys that withstand extremely high temperatures could soon be tuned even more finely for specific properties such as mechanical strength, as a result of new findings published today. A phenomenon related to the invar effect – which enables magnetic materials…
Study shows promise of quantum computing using factory-made silicon chips
A single qubit on a standard silicon transistor chip has been successfully demonstrated as “quantum capable” in a new study by the UCL spinout Quantum Motion, led by researchers at UCL and Oxford University.
The egg in the X-ray beam
Innovative time-resolved method reveals network formation by and dynamics of proteins
Why are optical refractive indices so small?
Pink Floyd’s Dark Side of the Moon cover, voted the greatest classical rock album of all time, intended to portray the prism and dispersion of light into a rainbow as a certain metaphorical symbolism and a light show that was…
Caltech professor Ibrahim Cissé applies physics to decode and understand RNA transcription
Nigerien-born physicist is the recipient of a 2021 Vilcek Prize for Creative Promise in Biomedical Science
Standing out: Unusual magnetic transition in perovskite oxide can help boost spintronics
Transition metal perovskites oxides exhibit several desirable properties, including high-temperature superconductivity and electrocatalysis. Now, scientists at Tokyo Institute of Technology explore the structure and properties of a perovskite oxide, PbFeO3, in anticipation of the unusual charge distribution and exotic magnetic…
First detailed look at crucial enzyme advances cancer research
In order to develop more effective drugs against a range of cancers, researchers have been investigating the molecular structure of many diseased-linked enzymes in the body. An intriguing case in point is Taspase 1, a type of enzyme known as…
Another Martini for better simulations
Simulating the interactions between atoms and molecules is important for many scientific studies. However, accurate simulations can take a long time, which limits their use. To speed up simulations without sacrificing too much detail, Siewert-Jan Marrink, Professor of Molecular Dynamics…
Researchers discover new organic conductor
Salts are far more complicated than the food seasoning – they can even act as electrical conductors, shuttling current through systems. Extremely well studied and understood, the electrical properties of salts were first theorized in 1834. Now, nearly 200 years…
New ‘bi-molecule’ with multiple technological applications discovered
University of Granada scientist discovers a new type of ‘bi- molecule’ that could help develop quantum sensors with multiple technological applications
Fast-acting, color-changing molecular probe senses when a material is about to fail
CHAMPAIGN, Ill. — Materials that contain special polymer molecules may someday be able to warn us when they are about to fail, researchers said. Engineers at the University of Illinois Urbana-Champaign have improved their previously developed force-sensitive molecules, called mechanophores,…
Reading between the diamonds
MSU scientists expand deep carbon story
Making molecular movies of a biological process of energy conversion
Many organisms use sunlight to fuel cellular functions. But exactly how does this conversion of solar energy into chemical energy unfold? In a recent experiment, an international team of scientists, including two researchers from UWM, sought answers using an advanced…
Tunable smart materials
Researchers at Osaka University invent tunable microparticles that can assemble into larger structures based on the content of attached chemical groups, which may lead to the development of smart sensors or self-healing materials
Scientists develop AI platform to assess blood vessel anomalies and eye disease
An international team of scientists from Nanyang Technological University, Singapore (NTU Singapore), Brown University and the Massachusetts Institute of Technology (MIT) has developed an artificial intelligence (AI) platform that could one day be used in a system to assess vascular…
The eukaryotic cell nucleus resembles the layout of a superstore
The headquarter of a eukaryotic cell is the nucleus, and most of the cell’s information and instructions are stored there in the form of DNA (Deoxyribonucleic acid). The DNA, which is twisted, rolled and bundled two-meter-long chain, together with protein…
Organic crystals’ ice-forming superpowers
At the heart of clouds are ice crystals. And at the heart of ice crystals, often, are aerosol particles – dust in the atmosphere onto which ice can form more easily than in the open air. It’s a bit mysterious…
Researchers help keep pace with Moore’s Law by exploring a new material class
University of Virginia School of Engineering and Northwestern University researchers create a new polymer-based electrical insulation for circuits that could help put more power in smaller spaces
Scientists uncover warehouse-full of complex molecules never before seen in space
Radio observations of a cold, dense cloud of molecular gas reveal more than a dozen unexpected molecules
New quantum algorithm surpasses the QPE norm
Osaka City University refines quantum computer-ready algorithm to measure the vertical ionization energies of atoms and molecules within 0.1 eV of precision.
Twisting, flexible crystals key to solar energy production
Researchers show how shapes and movements of halide perovskites create desirable renewable energy properties
Discovery of ‘knock-on chemistry’ opens new frontier in reaction dynamics
New experimental findings cast in doubt 90-year-old theoretical model of the transition state in chemical reactions
Shutting the nano-gate
Researchers at Osaka University create voltage-controlled nanopores that can trap particles as they try to pass through, which may lead to single-molecule sensors, along with cheaper and faster genomic sequencing
Scientists found new way to synthesize chiral tetraarylmethanes
The research was published on the journal Nature Catalysis on December 14, 2020. A strong bias towards linear and disc-shaped molecules has long been observed in drug molecules. In contrast, spherical molecules have been utilized on far fewer occasions, due…
Hyperpolarized proton MRI used to observe metabolic processes in real time
New technique using nuclear spin hyperpolarization of hydrogen paves the way for further advances in the field of magnetic resonance imaging
Laser-driven experiments provide insights into the formation of the universe
Laser-driven experiments conducted on the OMEGA laser at the University of Rochester capture for the first time in a laboratory setting the time history of the growth of magnetic fields by the “turbulent dynamo.”
Moiré than meets the eye
Researchers make carbon nanotube patterns called moirés for materials research
Who maintains discipline in a live cell: Physics perspective
Scholars explain the kinetics of distillation in eukaryotic cells
The secret of catalysts that increase fuel cell efficiency
Fuel cells, which are attracting attention as an eco-friendly energy source, obtain electricity and heat simultaneously through the reverse reaction of water electrolysis. Therefore, the catalyst that enhances the reaction efficiency is directly connected to the performance of the fuel…
Determining the structure of a molecule with laser-induced electron diffraction
Light microscopes have revolutionized our understanding of the microcosmos, but their resolution is limited to about 100 nanometers. To see how molecules bond, break, or change their structure, we need at least 1000 times better resolution. Laser induced electron diffraction…
New technique brings the study of molecular configuration into the microscopic domain
Researchers have developed a spectroscopic microscope to enable optical measurements of molecular conformations and orientations in biological samples. The novel measurement technique allows researchers to image biological samples at the microscopic level more quickly and accurately. The new instrument is…
Taking 2D materials for a spin
Scientists at the University of Tsukuba and the Institute of High Pressure Physics fabricate a novel molybdenum disulfide transistor and create an image of the spins of the electrons passing through which may open the way for new spintronic computers
Samara Polytech chemists have predicted more than 200 new carbon allotropes
One of the predicted substances turned out to be harder than a diamond
Terahertz waves from electrons oscillating in liquid water
Ionization of water molecules by light generates free electrons in liquid water. After generation, the so-called solvated electron is formed, a localized electron surrounded by a shell of water molecules. In the ultrafast localization process, the electron and its water…
Performance of methane conversion solid catalyst is predicted by theoretical calculation
Accelerating search for various materials to achieve a carbon-free society
Filming a 3D video of a virus with instantaneous light and AI
It is millions of trillions of times brighter than the sunlight and a whopping 1,000 trillionth of a second, appropriately called the instantaneous light. It is the X-ray Free Electron Laser (XFEL) light that opens a new scientific paradigm. Combining…
Food for thought: New maps reveal how brains are kept nourished
Micro-scale depictions solve century-old puzzle of brain energy use and blood vessel clusters
Virtually unlimited solar cell experiments
Researchers at Osaka University use machine learning to design and virtually test molecules for organic solar cells, which can lead to higher efficiency functional materials for renewable energy applications
Samara Polytech scientists have patented the TopCryst.Find_Topology service
It becomes possible to determine the crystal structure topology with the help of the program
On the line: Watching nanoparticles get in shape
New method could advance next-generation applications in medicine, cosmetics, and petroleum recovery