Articles tagged with Molecular Physics
Researchers at the European XFEL facility have taken pictures of gas-phase iodopyridine molecules at atomic resolution using ultra-bright X-ray pulses. The images were reconstructed from the fragments caused by a Coulomb explosion, providing unprecedented clarity for this method and molecule size.
A team of scientists successfully constructed a supramolecular rotor inside a hollow cube-shaped zinc(II)-metallated porphyrinic cage (Zn-PB) molecule. The addition of a chemical stimulant initiates both rotary and tumbling motions, controlled by external stimuli.
Researchers have created a new liquid crystal compound with ultra-short helix pitch and spiral ordering, making it ideal for fast-switching devices. The material's thermally and chemically stable structure allows for easy customization of pitch lengths.
Scientists at Osaka Prefecture University developed a novel method for creating uniform, electrically conductive nanosheets using oil and water interfaces. The approach resulted in highly organized three-dimensional nanostructures with high electrical conductivity, offering potential applications in energy devices and sensors.
Physicists at the University of Bath have found a way to reveal the forbidden colours of light in twisted nanoparticles, opening up new possibilities for emerging nanotechnologies. This discovery has implications for communications, nanorobotics and ultra-thin optical components.
Researchers from the University of Tsukuba have discovered that ultraviolet light can modulate oxide ion transport in a perovskite crystal at room temperature. This enables the enhancement of future battery and fuel cell functionality by increasing energy storage and output efficiency.
Researchers successfully simulated the capsid disassembly step of hepatitis B viral infection at an unprecedented atomic level, identifying specific regions of the capsid protein that contribute to breakage. This high-accuracy simulation can help design drugs to interrupt these processes and prevent chronic infection.
Researchers at Kanazawa University have made significant progress in understanding the constriction mechanism of dynamin, a protein involved in endocytosis. By combining experiments and simulations, they found that the nanomuscle's motion resembles a ratchet motor, generating enough force to cut off vesicles from cell membranes.
Researchers developed a new method to map supramolecular chirality in insect wings using microscopic vibrational circular dichroism (VCD). The technique revealed segregated microdomains of proteins with different secondary structures, unattainable by conventional FT-IR spectroscopy.
Researchers have developed a new technique using V-shaped graphene-metal film structures to study the properties of individual organic molecules and nanolayers. The approach relies on plasmon localization, which enables the team to focus on the sample and register a response from several molecules or even a single large molecule like DNA.
Researchers at MIT used a super collider and laser spectroscopy to precisely measure radium monofluoride, a short-lived radioactive molecule. The study's findings could reveal signs of dark matter and test symmetry-violating phenomena in nature.
Physicists have measured electron flight times in a molecule to study the influence of the molecule on photoemission time. The measurements reveal a delay attributable to the molecular environment that becomes larger as the energy of the light pulses is reduced.
An interdisciplinary team of scientists developed a new method to describe molecular rotations in solvents, paving the way for controlling chemical reactions. The technique, based on Feynman diagrams, delivers precise results and has potential to simulate molecular behavior.
Physicists from the University of Würzburg have successfully manipulated a molecule into two stable states by controlling its environment using an electrical field. This breakthrough could enable the creation of molecular switches for spintronics applications, a promising technology for future data processing.
Physicists and chemists at the University of Münster have developed a microscopic method to image organic molecules with exceptional resolution. The technique uses an atomically defined probe tip that greatly increases imaging resolution by reducing undesired interaction between atoms.
Scientists have discovered a new type of rare molecules whose properties can be controlled by changing an external magnetic field. These paramagnetic molecules, part of the porphyrin class, are closely related to photosynthesis and respiration in living organisms.
The NSF-funded Center for the Physics of Biological Function aims to bridge the gap between physics and biology by facilitating collaboration among theorists and experimentalists. The center will host a summer school for advanced undergraduates to introduce them to the field.
UCLA physicists pioneer method to create unique new molecule that violates the octet rule, which describes chemical reactions. The study uses ultra-cold temperatures and tools from physics to observe properties of atoms and molecules, paving way for controlling chemistry.
Researchers confirmed a theoretical possibility of dual liquid states in sub-zero water and other tetrahedral molecules. A study using DNA origami and simulation revealed that such structures could exhibit a high-density and low-density liquid phase, separated by an empty lattice.
Scientists at DIII-D National Fusion Facility have successfully reproduced radiation patterns in simulations, providing a breakthrough in fusion research. By eliminating molecular physics and accurately accounting for divertor plasma parameters, researchers have made significant progress towards designing radiating exhaust solutions.
Researchers introduce technique to calculate and understand angular momentum in complex systems, simplifying the 'angulon problem'. The novel canonical transformation removes complex algebra, offering insights into atomic, condensed matter, and chemical physics.
Researchers found a potential biomarker, limonene, in breath samples of patients with cirrhosis, which gradually dropped after liver transplant. The study aims to develop a non-invasive diagnostic tool for early-stage liver disease diagnosis.
Scientists have described the molecular-level process of glass formation, combining two decades-old theories to predict bulk behavior, surface flow, and the elusive glass transition. The new theory has implications for developing nanomaterials with conductive properties and calculating pharmaceutical uptake.
Researchers at the University of Oklahoma have successfully created a new molecule with an unprecedented electric dipole moment, opening up potential pathways for the development of scalable quantum computers. The molecule's unique property allows it to react with electric fields like a bar magnet reacts with magnetic fields.
The Joint Quantum Institute's (JQI) Physics Frontier Center, a collaboration between UMD and NIST, has been renewed by the NSF for five years. Researchers will focus on exploring topological quantum matter, entanglement, and dynamics in systems far from equilibrium.
Researchers at Kansas State University have developed a robust model to predict chemical reactions involving three atoms at ultracold temperatures, shedding light on mysterious quantum states and the Efimov effect. The findings provide a largely accurate idea of how atoms bind to form molecules.
Yale physicists have successfully cooled strontium monofluoride to near absolute zero using magneto-optical trapping, enabling new research in quantum chemistry and particle physics. The discovery opens doors for experimentation in precision measurement, quantum simulation, ultracold chemistry, and tests of the standard model.
A team of physicists has successfully demonstrated magnetism within a single molecule. By applying voltage, researchers were able to switch the magnetic state on and off, reproducing elementary physics in a single molecule. This discovery provides new insights into magnetism as an elementary phenomenon of physics.
Physicists at JILA have successfully cooled a gas of hydroxyl radicals to extremely low temperatures using evaporative cooling. The process enables precise control over molecular energies and interactions, paving the way for advances in ultracold chemistry and quantum simulators.
Researchers outline challenges and potential solutions for synthetic molecular machines to fulfill their promise. The team proposes using metal-organic frameworks to organize molecular switches spatially and temporally.
The 2011 Harold M. Weintraub Graduate Student Award has been awarded to 12 graduate students from institutes across North America who have made significant contributions to the field of biological sciences. The award recognizes the quality, originality and significance of their research.
The Penn State faculty team, led by Renee Diehl, received a $2.85 million NSF grant to develop innovative open-inquiry science curriculum elements related to energy, matter, and materials. The project will foster collaboration and communication skills among STEM graduate fellows and support teacher application of science content.
University of Delaware physicists have confirmed a new vibrational level for the beryllium dimer, a molecule previously thought to repel atoms. The research, led by Krzysztof Szalewicz and Konrad Patkowski, uses morphing techniques to reconcile experimental and theoretical models.
Graphene nanodomes, formed by concentric rings of carbon atoms, offer new insight into graphene growth and potential methods for assembling components of graphene-based computer circuits. The discovery enables varying the size of the carbon domes from a few nanometers to hundreds of nanometers across.
A team of researchers has discovered a compact way to produce infrared light using a miniscule tunnel in a stack of gold and silica layers. This tiny, tunable light source could be the precursor to a new component for light-based chips. String theorists have also developed a toolkit of equations to measure the predictions of string the...
Researchers will conduct laboratory experiments and theoretical research to minimize the Casimir force between objects, enabling the design of efficient micro- and nano-machines. The project aims to reduce the Casimir force using different material coatings and specialized coatings to bring about a repulsive Casimir force.
Researchers at Caltech have created a nanoscale mass spectrometer that can instantly measure the mass of an individual molecule. The device uses tiny nanoelectromechanical system (NEMS) resonators to detect changes in vibration frequency, allowing for precise mass determination.
Scientists at the University of Nottingham and the University of California, Berkeley have provided evidence for a new kind of sudden transition between liquid and solid glass. This transformation occurs when molecules are viewed in both space and time, guiding towards methods for producing stronger and longer-lasting glass.
The University of California-Irvine has set a new record for the largest class of researchers named Fellows of the American Association for the Advancement of Science with 20 new honorees. The AAAS fellows represent the depth and breadth of research excellence at UCI.
Physicists at the University of Rochester have developed a device that can generate and trap huge numbers of elusive ultracold polar molecules. This breakthrough technology, called TWIST, allows for the efficient production of these molecules, which are crucial for creating exotic artificial crystals and stable quantum computers.
Physicists at UCR have created molecular positronium, which could help develop gamma-ray lasers and explain the universe's matter-antimatter imbalance. The research uses silica to trap positronium atoms, allowing them to form molecules that can interact with each other.
Robin Santra, an assistant physicist at Argonne National Laboratory, has been awarded the first-ever Young Scientist Prize for Atomic, Molecular and Optical Physics. He was recognized for his contributions to the discovery of hole-orbital alignment in atomic ions generated in strong laser fields.
The Sloan Foundation has honored three young scientists at Yale with two-year Research Fellowships for their outstanding contributions to physics, computer science, and neuroscience. The fellows will receive $45,000 awards to pursue their research interests without restrictions.
A team of researchers has developed a new theory explaining how electrons interact with molecules, revealing unexpected transport channels. This breakthrough could lead to more efficient molecular transmission and the development of molecular switches.
Researchers found that vermilion particles first turn black, then white through a two-step degradation process, challenging the prevailing view of simultaneous color development.
Commercial publishers charge higher prices for print subscriptions than non-profit journals, particularly in emerging fields like neurobiology and molecular biology. Universities may struggle to prioritize subscription budgets as each journal's value varies among users.
Researchers grew a molecular film on liquid mercury, discovering four distinct patterns as molecules assemble. The study paves the way for controlling film growth and tailoring materials for nanoelectronics and nanosensor technology.
A PhD student developed a method to filter water vapor information from satellite data, enabling accurate predictions of the greenhouse effect. The research is important for understanding the complex influence of water vapor in the atmosphere and its impact on global temperatures.
Fluoroscopy-guided intervention procedures can cause tissue damage due to continuous x-ray exposure. Guidelines aim to prevent this by modifying equipment and educating practitioners on efficient use.
Researchers develop a new method to fabricate optoelectronic devices using Fullerenes and positively charged polymers, generating a current from a negatively charged Fullerene and a positively charged polymer. This process creates a photovoltaic device without the use of toxic solvents or expensive instruments, under ambient conditions.
The American Physical Society's largest physics meeting will feature over 5000 speakers presenting on topics including nanotechnology, MEMS innovations, cancer detection, and cardiac disorders. Researchers will also discuss pseudoscience and superstition in science.
Brian Gerke, a 1999 Williams College graduate, has won the LeRoy Apker Award for his research on the effect of light on retinal molecules. His work could potentially help design optical computer memories and sensors.
Researchers at UC Santa Barbara discovered a unique protein-based adhesive that explains the abalone shell's exceptional fracture resistance. This 'biological rubber' helps maintain its structure by releasing sacrificial links that break before the whole molecule, providing both strength and elasticity.
The Hertz Foundation has awarded a $1 million endowment to establish an endowed professorship at UC Davis in recognition of Edward Teller's contributions to physics. Earnings from the endowment will support the chair's teaching, research, and administrative work.
A team of astronomers has developed a 3-D globe-like image of the Helix nebula, allowing them to inspect it from all sides. The image reveals evidence that the nebula behaves like a double-headed garden sprinkler, with each side ejecting gas at similar structures.
The National Academy of Sciences has elected 60 new members for their distinguished achievements in original research. The newly elected members include experts from top universities such as North Carolina State University, Columbia University, and Yale University.
Scientists worldwide are building equipment to replicate the discovery of a new state of matter, known as the Bose-Einstein condensate. The condensate's properties have been studied extensively, with researchers making breakthroughs in understanding its behavior at extremely low temperatures.