Articles tagged with Molecular Physics
Researchers at Osaka Metropolitan University developed a practical imaging technique to visualize surface plasmon polaritons, electromagnetic waves traveling along metal surfaces. The method uses quantum dots to create sensitizers that can capture images of the waves under normal laboratory conditions.
Researchers found that single-atom Cu and adjacent Ti sites play distinct roles in CO2 photoreduction. Single-atom Cu sites promote CO2 adsorption and activation at adjacent Ti sites through H2O adsorption and electron injection.
A Chinese research team has proposed a novel approach to separate dimethyl carbonate from methanol using a tailor-made ionic liquid and heat pump-assisted distillation. The method significantly reduces energy consumption and costs compared to traditional methods, making it an attractive solution for the chemical industry.
A research team used a simple physical model to connect sublattice melting with cooperative and spatially heterogeneous ion transport, revealing a fundamental mechanism behind superionic conduction. The findings offer a unified explanation for this phenomenon, which could guide the design of next-generation solid-state batteries.
Researchers at ISTA discover how to turn single molecules into effective magnets, overcoming weak magnetic field limitations. The findings could lead to breakthroughs in nanoelectronics and the design of single-molecule nanodevices.
A new molecule, TP-An, enables highly efficient triplet-triplet annihilation-based photon upconversion, converting low-energy green light to high-energy purple light. The molecule achieves a nearly comparable upconversion performance and works well even at high concentrations.
Scientists have successfully synthesized a new fullerene material that exhibits metallic behavior even under cryogenic temperatures. This discovery challenges conventional understanding of the Mott metal-insulator transition and has significant implications for future electronics and quantum technologies.
Dual-comb spectroscopy enables precise, rapid, and broadband measurements using two optical frequency combs with slightly different repetition frequencies. This technique has been implemented across the electromagnetic spectrum, from terahertz to visible range, with ongoing efforts towards ultraviolet range.
Researchers at Johannes Gutenberg University Mainz have made new constraints on dark matter particles using precision measurements of barium monofluoride molecules. The study found bounds on hypothetical Z' bosons that mediate electron-nucleus interactions, potentially shedding light on dark matter.
Researchers develop novel inverse phase enhancement strategy for fabricating graphene paper composites, achieving record-high thermal conductivity of 802 W/m·K. The minimal polymer loading enhances tensile strength by 117% while preserving the highly ordered crystalline structure necessary for efficient heat transfer.
Researchers have developed a coherent Raman spectroscopy method that directly detects ångström-scale molecular films at interfaces without plasmonic enhancement or electronic resonance. This approach suppresses strong substrate background signals, allowing for highly sensitive interfacial Raman spectroscopy.
Researchers discovered a freshwater alga that captures far-red light for photosynthesis by rearranging ordinary chlorophyll. This unique strategy allows the alga to thrive in shaded forests and murky waters, making it resilient in tough environments. The findings have practical implications for sustainable bioenergy production and may ...
Researchers have developed a new chemistry-based strategy to localize therapeutic drugs to tumors, reducing harm to healthy tissues. The 'lock-and-key' system uses biorthogonal supramolecular chemistry to release drugs in specific locations, offering a potential path to safer and more precise cancer treatment.
Researchers at Goethe University used X-ray radiation to determine the spatial structure of formic acid, finding that its atoms oscillate slightly back and forth. This 'quantum trembling' causes the molecule to lose its symmetry and become effectively three-dimensional at almost every moment.
Researchers have created a new computational method to simulate Tip-Enhanced Raman spectroscopy (TERS) signals with high accuracy. This enables the study of atomic motion down to individual molecules or defects in metallic surfaces. The method provides a detailed understanding of the signatures of local atomic motion and its sensitivit...
ASU researchers use DNA to store and protect information in fundamentally new ways, offering a nature-inspired alternative to silicon-based solutions. The approach uses tiny DNA structures that act like physical letters to record and analyze electrical signals, providing high accuracy and scalability.
Researchers have demonstrated an angstrom-scale electroplasmonic platform enabling giant modulation (2000% V⁻¹ ) of near-field nonlinear optical effects across a broad spectral range. The discovery provides a novel scheme for highly efficient electro-optical conversion in an infinitesimal spatial scale.
A team of researchers from Chiba University discovered the structural evolution of poloxamer mixtures at different temperatures, enabling customized gelation behavior. Their findings support precise design of sustained-release formulations for localized therapies, enhancing drug retention and minimizing side effects.
A research team at Osaka Metropolitan University successfully realized a new type of Kondo necklace with increased localized spin size, demonstrating a clear phase transition to magnetic order. The study shows that the Kondo interaction promotes magnetism when the localized spin is larger than 1/2.
Scientists from ISTA and Brandeis University develop a geometric framework that predicts viable structures in self-assembling particles. The 'high-dimensional convex polyhedron' tool helps identify constraints that prevent certain outcomes, offering insights into designing custom-made nanomaterials.
Researchers used computer simulations to understand how protein dynamin forms small vesicles within cells. Dynamin loosens at a certain stage to generate the force needed to narrow the surrounding membrane tube, providing insights for artificial nano-device design.
Researchers from two Max Planck Institutes directly observe the strong reshaping of C60 molecules by laser fields using x-ray camera. At low intensities, the molecule expands before fragmentation sets in, while at high intensities, fast expansion and removal of outer valence electrons occur.
Researchers at Cleveland Clinic and IBM developed a hybrid quantum-classical model to simulate molecular interactions. The study accurately simulated two supramolecular systems, water dimer and methane dimer, for the first time using quantum computers.
Researchers discovered a new optical principle to amplify light in water using non-harmonic two-color femtosecond laser excitation. This breakthrough achieves a 1,000-fold enhancement in broadband white-light output and unlocks advances in bioimaging and ultrafast spectroscopy.
Researchers at Pohang University of Science & Technology have successfully synthesized Prussian Blue with an octahedral morphology by using a specialized solvent. The new crystal shape enhances electrochemical reactivity and stable performance in sodium-ion hybrid capacitors.
Researchers at the University of Colorado Boulder have created a new type of time crystal that can be observed directly under a microscope and even by the naked eye. The team used liquid crystals to achieve this feat, which could lead to technological applications such as counterfeiting prevention and data storage.
Researchers developed a supramolecular co-assembly platform producing chiral soft materials with strong, stable full-colour circularly polarised luminescence across the visible spectrum. The resulting structures are tunable, scalable and retain their properties for over 100 days at room temperature.
Researchers at the University of Missouri have created a more efficient method for manufacturing computer chips using ultraviolet-enabled atomic layer deposition (UV-ALD). This approach reduces the number of manufacturing steps, saving time and materials, while also minimizing the use of harmful chemicals.
An international team of scientists organized a competition to evaluate analytical tools for single-molecule motion analysis, with the goal of extracting meaningful insights from complex molecular trajectories. The results offer practical guidance for experimentalists seeking the right tools for their studies.
Researchers developed a new scattering-type scanning near-field optical microscopy (S-SNOM) technique achieving 1-nm resolution, enabling atomic-scale imaging of materials. This enables studying of atomic defects and nanoscale structures with unprecedented precision.
Researchers combined quantum computing with supercomputing to simulate large molecule stability and behavior, overcoming current barriers. The hybrid approach used a quantum computer for complex calculations and a supercomputer for error correction, enabling accurate predictions of molecule stability.
Weizmann Institute researchers developed a nano-MRI device with a resolution of one nanometer, allowing for the imaging of individual molecules. This technology paves the way for high-resolution molecular imaging in materials and pharmaceutical industries.
Researchers successfully integrated femtosecond-pulse VSFG spectroscopy with scanning tunneling microscopy (STM) to detect VSFG signals from molecules in nanoscale gaps. Phase analysis revealed molecular orientation, and the technique's spatial confinement enabled detection of signals from a limited number of molecules.
A new method for DNA detection uses heterogeneous probe particles and laser light to accelerate genetic analysis. This PCR-free technique offers greater sensitivity and speed than traditional methods, making it more accessible for medical, environmental, and personal health applications.
A novel AI framework, MULGONET, improves cancer recurrence prediction by integrating genomic, epigenetic and transcriptomic data. The model overcomes limitations of traditional machine learning models by automatically linking genes to biological processes, enabling trans-cancer applicability.
Developing heart cells use filopodia to probe and grab onto potential partners, seeking stability through energy equilibrium. The model predicts how cells match and rearrange, mirroring real embryo outcomes.
Researchers tracked ultrafast structural changes of a molecule driven by excited-state aromaticity, revealing its emergence within hundreds of femtoseconds and facilitating planarization. The study provides new insights for designing photoactive materials like sensors and light-driven switches.
UTA's expansion of its undergraduate research program has enabled students to present their work at major symposiums, including the American Institute of Aeronautics and Astronautics conference. The program has strengthened students' commitment to pursuing graduate studies in various fields.
The University of Texas MD Anderson Cancer Center received nearly $23 million in CPRIT funding to advance cancer research, translational science, and clinical trials. The funding will support the recruitment of a first-time tenure-track faculty member and enhance the understanding of cancer biology.
A new laser-based device can analyze gas samples with high precision, detecting molecules at minute concentrations. The technology has potential applications in medical diagnostics, tracking greenhouse gas emissions, and more.
Researchers propose a new framework describing living matter as a double cascade spanning 18 orders of magnitude in space and time, with critical points marking the emergence of self-replicating machines and complex societies.
Researchers developed AshPhos, a ligand that facilitates the formation of carbon-nitrogen bonds using inexpensive materials. The tool has potential applications in pharmaceuticals, nanomaterials, and degrading PFAS pollutants.
Researchers use knowledge of molecular motors to enhance DNA-nanoparticle motors, reducing speed disparities. The engineered motor achieves speeds of 30 nm/s with improved processivity and run-length, comparable to natural motor proteins.
Scientists at Hiroshima University have created a controlled helix using supramolecular polymerization, which can be used to control the behavior of materials in various scenarios. The new polymer has the potential to improve applications such as memory, sensing devices, and catalysis by controlling its handedness.
Researchers have developed a liquid moisture adsorbent that can efficiently harvest water from the air at near ambient temperatures. The technology, which uses random copolymers of polyethylene glycol and polypropylene glycol, has the potential to provide clean drinking water in arid regions and during disasters.
Scientists at Osaka Metropolitan University have synthesized aza-diarylethenes that exhibit both photoswitching and thermal switching properties. These new molecules can be used as rewritable recording mediums, written with light or heat, and erased with visible light.
Computer simulations point the way towards better solar cells by gaining crucial insights into what influences properties of 2D perovskite materials. Researchers have discovered that the choice of organic linkers can directly control how atoms in surface layers move, affecting optical properties.
Researchers from Osaka Metropolitan University have developed a method to detect coronavirus spike proteins quickly and selectively using a light-induced immunoassay. The technique uses a milliwatt-level laser and can complete the entire process in under 5 minutes.
Researchers have developed an integrated optical sensor capable of detecting dopamine directly from unprocessed blood samples. This breakthrough enables low-cost and efficient screening tools for various neurological conditions and cancers.
Researchers successfully observe and identify the reactive electron species for photocatalytic hydrogen evolution on metal-loaded oxides, shifting the paradigm on the traditionally believed role of metal cocatalysts. The electrons shallowly trapped in the in-gap states contribute to enhancing the hydrogen evolution rate.
Researchers measured dielectric properties of 11 polyimides to establish correlation between molecular structure and dielectric behavior. The study revealed that higher fluorine content resulted in lower dielectric constant values, enabling potential applications for 6G technologies.
Researchers have successfully transformed existing optoelectronic devices, including LEDs, into spintronics devices by injecting spin-aligned electrons without ferromagnets or magnetic fields. The breakthrough uses a chiral spin filter made from hybrid organic-inorganic halide perovskite material, overcoming a major barrier to commerci...
Researchers investigate interfacial hydrogen bond structure and dynamics to maximize catalytic activity in photocatalytic hydrogen evolution. Depositing three water layers in a water vapor environment is optimal for photocatalytic hydrogen evolution, according to the study.
Physicists at Trinity College Dublin developed a new theory describing the energy landscape of collections of quantum particles. This work addresses decades-old questions and may help scientists design materials revolutionizing green technologies.
Researchers at Osaka Metropolitan University have developed a novel technique to control Förster resonance energy transfer using optical tweezers. The method, which accelerates energy transfer by increasing laser intensity, offers a non-contact approach for microchemistry and quantum dot applications.
Researchers at Columbia University have successfully created a unique quantum state of matter called a Bose-Einstein Condensate (BEC) out of molecules. The breakthrough, achieved by cooling sodium-cesium molecules to just five nanoKelvin, has the potential to advance powerful quantum simulations and unlock new areas of research.
A recent study published in The Journal of Chemical Physics has uncovered the role of dynamic disorder in jump motions that govern the dynamic slowdown of supercooled water. At lower temperatures, water molecules become trapped within stable, low-density domains, leading to increasingly slow and intermittent motion.
Researchers at NUS developed a new method to grow two-dimensional transition metal dichalcogenides (TMDs) using molecular beam epitaxy. This approach enables phase engineering and fabricating 2D heterostructure devices with precise control over their properties.
Researchers developed a new component, sepiolite, to improve braking effectiveness in high-speed rail brakes. Sepiolite exhibits high-temperature lubricity, weakening bonds between its layered structures, and accelerates the formation of a surface lubricating film, providing stable friction at high temperatures.
Scientists at Arizona State University develop a new simulation method to predict and guide the self-assembly process, creating tiny, self-assembled crystals with unique optical properties. This breakthrough advances technologies in computer science, materials science, medical diagnostics, and more.