Articles tagged with Molecular Physics
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A team from Argonne National Laboratory has extended the coherence time for a novel type of qubit to nearly 1,000 times better than the previous record. This achievement enables the qubit to perform thousands of operations with high precision and speed.
Osaka Metropolitan University scientists have developed a super-efficient laser light-induced detection method that reduces detection time from hours to minutes. The technique allows for ultrafast and ultrasensitive measurement of biological nanoparticles, including exosomes, with diameters of 50–150 nm.
Researchers have developed a new way to identify chiral molecules using light, which vastly improves detection efficiency. The new method uses lasers to drive chiral electronic currents in molecules, causing one version to emit bright light while its counterpart remains dark.
Researchers demonstrate critical roles of metal cocatalysts in modulating surface oxidation kinetics and selectivity in methane oxidation. Metal cocatalysts play a key role in promoting CO2 production over C2H6 formation.
Scientists have successfully imaged electronic molecular orbitals of single molecules, revealing superatom molecular orbitals suitable for electron transport in organic electronics. This breakthrough imaging technique will facilitate studying structural changes and reactions of molecules.
A team of astronomers using the James Webb Space Telescope has detected complex organic molecules in a galaxy over 12 billion light-years away. The discovery suggests that the presence of these molecules does not necessarily indicate star formation, contradicting a long-held assumption.
Researchers have visualized the C-H bond breakage in alkanes using X-ray light, revealing the role of metal catalysts. The study solves a 40-year-old mystery and provides new insights into catalyst performance. Scientists hope to direct electron flow to develop better catalysts for the chemical industry.
Researchers successfully detect X-ray signature of individual atoms, enabling the identification of materials at an atomic level. The breakthrough technique has potential applications in environmental and medical sciences, as well as advancing technology.
Dr. John H. Bushweller's team at UVA Cancer Center is developing novel drugs to block abnormal proteins that cause pediatric leukemia. The new approach aims to improve efficacy and reduce toxicity, potentially leading to better patient outcomes.
Scientists develop elastoactive chains with self-oscillatory, self-synchronizing, and self-snapping behavior, mimicking biological machines. The study explores material properties and potential applications in autonomous robot development.
Scientists have successfully regulated the flow of single molecules in a solution by opening and closing a nanovalve, which could revolutionize chemical and biochemical synthesis. This technology has the potential to detect pathogens with high sensitivity and create new materials for various industries.
Scientists found that oxocarbon-based dyes have intermediate electronic configurations between closed-shell and open-shell forms. The study reveals that longer wavelengths of near-infrared light absorption increase the contribution of open-shell forms in the dye.
Researchers found previously unknown interactions among people in southern Africa between the 5th and 20th centuries, revealing a complex network of cultural exchange. The study used geochemical analyses on copper objects to reconstruct connectivity across the region, providing new insights into the history of the area.
A new technology uses light-induced convection to enhance the permeability of cell membranes, allowing for efficient and selective delivery of biofunctional molecules to targeted cells. This results in lower concentrations of drugs needed for testing and potentially reduced costs and faster drug discovery.
Researchers have discovered four new 2D Janus materials that can catalyse the splitting of water into hydrogen and oxygen with excellent stability and light absorption. These materials, which are well-suited for redox reactions, could be a key element in the global effort to eliminate carbon emissions.
Researchers have developed nanofluidic devices to study single molecule chemical reactions in solution. These devices provide a test tube-like environment to confine individual molecules and enable high temporal resolution for investigating fast single molecule reactions. By integrating various fields using nanofluidics, scientists can...
Researchers found that salt concentration is crucial for icicle ripple formation. With increasing salt levels, ripples become stronger and more visible. This discovery explains the rippled patterns on gutters and car bumpers during winter.
A Princeton-led team discovered that abnormally large droplets in brain cells are linked to ALS, Alzheimer’s and a range of dysfunctions. The study provided a new understanding of the fundamental physical mechanism behind protein aggregation.
Researchers at Osaka Metropolitan University successfully measured spin transport in a molecular film, achieving a spin diffusion length of 62 nanometers. This breakthrough paves the way for the development of smaller, faster, and energy-efficient electronics.
Researchers discovered that interfacial water promotes non-thermal C-H activation by abstracting hydrogen from methane, improving conversion rates dramatically. This work provides a fundamental basis for designing non-thermal catalytic systems for sustainable methane utilization under ambient conditions.
A new nanopore-based sensing device explores the aggregation of tau and tubulin proteins in neurodegenerative diseases such as Alzheimer's and Parkinson's. The device provides volume information about protein molecules and their states at the single-molecule level, offering insights into protein binding and aggregation.
Osaka Metropolitan University scientists have developed a novel protein detection method that allows for ultra-fast and highly sensitive detection of proteins, enabling early disease diagnoses. The method uses light-induced acceleration of antigen-antibody reaction to detect attogram-level proteins within 3 minutes.
Researchers at Argonne National Laboratory have developed a way to rotate a single molecule, europium complex, clockwise or counterclockwise on demand. This technology could lead to breakthroughs in microelectronics, quantum computing and more.
Using machine learning to study water's phase changes, researchers found strong computational evidence in support of liquid-liquid transition. This technique can be applied to real-world systems that use water, informing water's use in industrial processes and climate models.
Researchers discover circular polycatenanes with properties similar to DNA rings, showcasing a connection between local and global properties. These structures have unique elastic properties and can be used in designing new materials and micro-sensors.
Prof. Katharina Boguslawski and Prof. Piotr Wcisło from Nicolaus Copernicus University have been awarded ERC grants for their ambitious projects, which aim to push the boundaries of knowledge in physics and astronomy. The awards will provide significant funding for research, equipment, and personnel over a period of five years.
Researchers propose an optical imaging system for real-time hypoxia imaging in cancer treatment. The technique utilizes protoporphyrin IX to enhance contrast between tumors and healthy tissues, allowing for more effective surgical removal.
Scientists at Kyushu University have developed organic molecules that align in the same direction, creating a 'giant surface potential' when evaporated onto a surface. This alignment leads to a significant electric field, which can improve OLED efficiency and open new routes for realizing devices that convert vibrations into electricity.
A research group from Osaka Metropolitan University investigates Adiabatic State Preparation (ASP) for efficient electron correlation effects in molecules. They find four key points relevant to ASP's computational conditions, making the method more practical.
Physicists have created a way to simulate quantum entanglement between interacting particles using neural networks and fictitious 'ghost' electrons. This approach enables accurate predictions of molecule behavior, which could lead to breakthroughs in pharmaceutical development and material design.
A team led by Dr SeyedAbdolreza Sadjadi and Professor Quentin Parker from HKU's Laboratory for Space Research identified highly ionised species of C60 fullerene as plausible carriers of some prominent UIE bands. Theoretical mid-infrared signatures of these ionised forms match well with astronomical UIE features, providing a promising d...
Researchers at Osaka Metropolitan University have developed a pentacene derivative with significantly improved photostability, exceeding 100 times that of existing products. The molecule's planarity and π-electron conjugation are strengthened through the addition of a radical substituent.
University of Queensland scientists have discovered a way to make molecular switches work at room temperature, paving the way for more efficient and environmentally friendly technologies. This breakthrough could lead to advancements in MRI scans, sensors, carbon capture, and hydrogen fuel cells.
Scientists found that certain dynamical defects help explain the allowed vibrational modes inside amorphous solids, like glasses. These findings may lead to controlling the properties of amorphous materials.
Researchers developed a real-time polarized infrared spectroscopy technique to study metal-organic frameworks and guest molecule interactions. This method provides insights into host-guest and guest-host interactions, enabling the development of high-performance porous materials.
Researchers have developed a method to control the rotational states of chiral molecules, allowing for specific separation of enantiomers. By irradiating chiral molecules with UV radiation and microwaves, the team has gained more control over which 'hand' is in which state.
A team of scientists successfully investigated the electronic structure of tautomeric mixtures using inelastic X-ray scattering (RIXS) at BESSY II. They can now experimentally separate the signal of each individual molecule, providing detailed insight into their functionality and chemical properties.
A study by Sibani Lisa Biswal and Kedar Joshi shows that magnetically driven colloidal suspensions exhibit behavior consistent with the principles of classical thermodynamics, including vapor pressure, viscosity, and surface tension. The researchers' findings have implications for designing materials with reconfigurable properties.
Researchers have developed a new imaging technique using X-ray lasers to capture high-resolution images of complex single molecules. The technique, known as Coulomb explosion imaging, uses ultra-bright X-ray flashes to explode the molecule and reconstruct its image.
A team led by Osamu Takahashi developed a procedure to reproduce the double peak feature of x-ray emission spectroscopy spectra in liquid water. They used molecular dynamics calculations and first principles quantum mechanical calculations to estimate XES spectra, reproducing features such as the double peaks.
Researchers at Osaka City University have developed a new technique for controlling the luminescence color of materials using optical tweezers and nanotextured black silicon. The system can change the color of a material in response to changes in light pressure, allowing for fully reversible remote control.
Scientists create triatomic molecules by applying radio-frequency pulse to an ultracold mixture of sodium and potassium atoms. The resulting association signal suggests a strong binding between the molecules.
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.