Articles tagged with Physical Chemistry
Researchers from the Institute of Physical Chemistry have developed a unique system that uses magnetic fields to spatially organize endothelial cells onto microparticles, creating vascular systems with well-defined micro-architecture. This technology has the potential to revolutionize personalized drug testing and precision medicine by...
A study from Sultan Qaboos University's Department of Physics investigates how surface functionalization affects gold nanoparticle behavior. The research uses molecular dynamics simulations to show that varying surface coverage density can influence thermodynamic behavior and stability.
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.
The study reveals a novel hydrogen-bonding motif in the deprotonated dimer of phosphoric acid, which may be key to understanding proton transport in phosphoric acid-based systems. This finding provides insight into the molecular origin of phosphoric acid's extraordinary proton conductivity.
A team from the Institute of Physical Chemistry, Polish Academy of Sciences, has developed a method to control the shape of microfibers using electricity. This breakthrough enables the creation of miniaturized actuators that can change shape on demand, opening up possibilities for novel applications in micromechanics and soft robotics.
Scientists propose a solution to inactivate bacteriophages without destroying bacterial strains, using polymeric nanospheres that interact with phage surface charges. The nanoparticles are effective against 95% of phages and could provide a safer alternative to existing anti-phage strategies.
Researchers quantify interactions of P407 micelles in PBS to understand gelation behavior and release mechanisms. The study reveals stronger attractive forces between micelles in saline, affecting gel stability and structural fluctuations.
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.
The B-STING silica nanocomposite acts as a nanofactory of reactive oxygen species, activating itself in response to changes in the chemical environment. This material can be used to create biocidal coatings that are safe, durable, and resistant to dirt, with potential applications in medicine and other industries.
A team of researchers investigated electron-transfer-mediated decay (ETMD), a key process in radiation chemistry and biological damage. They found that atoms undergo pronounced roaming-like motion, reshaping molecular geometry and influencing decay timing.
Researchers have successfully controlled the rotation of molecules suspended in liquid helium nano-droplets using a new optical centrifuge. This breakthrough enables scientists to study the behavior of exotic, frictionless superfluids and understand how molecules interact with the quantum environment at various rotational frequencies.
Scientists successfully observed a quinoxalinyl radical forming within nanoseconds using µSR spectroscopy. The technique enabled real-time detection of highly reactive aromatic heterocyclic radicals in isocyanide insertion reactions.
Researchers have discovered a unique cobalt-based molecule that can function as a spin quantum bit, providing a new design strategy for molecular materials used in quantum information technologies. The molecule exhibits slow magnetic relaxation and delocalized electron spins, allowing it to stabilize the quantum state.
Researchers have developed a new microscope that uses nonlinear optics to visualize hBN, a 2D material previously impossible to study. The technique enables live imaging of the material's crystal orientation and reveals its high nonlinearity in vibrational resonance.
Researchers at Hokkaido University developed an environmentally friendly method to synthesize organosodium reagents using ball-milling mechanochemistry. This approach replaces traditional methods using highly reactive and toxic materials, offering a sustainable alternative in organic synthesis.
A ring-shaped 'cap' has been found to regulate the connection of gap junctions, enabling the direct exchange of information between cells. This discovery may hold implications for controlling electrical signals in the heart or intestine.
Researchers at Boston College have identified a novel bacterium that can thrive on spent battery waste, producing protons capable of leaching electrode materials. The bacteria, Acidithiobacillus ferrooxidans, also shows promise in recycling Li-Ion battery cathode materials using iron and stainless steel as food sources.
Aarhus University researchers have developed a transparent layer with silver nanorings that adapts to sunlight intensity, controlling heat entry through glass without dimming the view. The thermoplasmonic effect reduces near-infrared transmission, lowering cooling demand and CO₂ emissions in energy-efficient buildings.
Researchers at the Fritz Haber Institute have made significant strides in understanding the complex interactions within multi-promoted ammonia synthesis catalysts. The study reveals that promoter phases and structural transformations are crucial for forming an active catalyst configuration.
Researchers Jeremy McCormack and Andrei Kuzhelev at Goethe University are investigating the reasons behind prehistoric shark extinctions using new isotopic analysis methods. They also develop a novel nuclear magnetic resonance spectroscopy technique to study large biomolecules.
Researchers developed a new model and theory to explain nanoparticle growth dynamics, accounting for six essential characteristics of nanoparticle growth. The new theory provides fresh physical insights into the role of nanoparticle motion and configurational degeneracy on their nucleation and growth.
Scientists have created a new class of nanocrystals with exceptional thermal and chemical stability, showcasing impressive gas adsorption capabilities. The discoveries could lead to the development of advanced porous solid-state materials.
Researchers discovered a new 'In and Out' mechanism where CO₂ briefly dips into the topmost layer of water, reacts, and then reemerges. This challenges previous assumptions about where and how CO₂ can turn into carbonic acid, suggesting faster ocean acidification.
A team led by Ruth Signorell at ETH Zurich has found a previously unknown reaction pathway for urea formation on water surfaces under ambient conditions. This spontaneous reaction could have occurred on prebiotic Earth and provides insights into the origin of life.
Researchers have developed a new approach to create defective carbon nitride, a metal-free semiconductor that enhances solar-driven chemical reactions. The material shows improved photocatalytic performance due to its increased surface area and density of active sites, leading to higher yields in hydrogen peroxide generation.
Researchers from the Institute of Industrial Science, The University of Tokyo, used molecular-scale simulations to understand ice formation. They found that the arrangement of water molecules in the two layers closest to the surface is crucial for nucleation, promoting a low-dimensional hexagonal crystal lattice at the surface.
Researchers have developed a theoretical model that enhances passive radiative cooling by generating positive photon chemical potential, allowing for more efficient heat emission. The system can reach cooling powers of up to 485 watts per square meter, surpassing typical radiation power from a blackbody at room temperature.
The Mass Query Language (MassQL) tool empowers scientists to uncover previously unknown pollutants in massive chemical datasets. It has identified toxic compounds hidden in plain sight, including organophosphate esters and chemicals from breaking down over time.
Chemists have confirmed a 67-year-old theory about vitamin B1 by stabilizing a reactive molecule in water. The discovery opens doors to more efficient ways of making pharmaceuticals using cleaner solvents.
Researchers from the Institute of Physical Chemistry, Polish Academy of Sciences, have identified unusual phosphorus molecules in space. These molecules, including phosphabutadiyne and vinylphosphaethyne, were studied using cryogenic techniques and infrared spectroscopy, providing new insights into their formation and properties.
Scientists used radiation-induced reactions to convert corrosive Cr³⁺ to less-corrosive Cr²⁺, potentially mitigating metal alloy corrosion in molten salt nuclear reactors. The findings could improve the long-term reliability of these new reactors.
A new study by researchers at the Institute of Science Tokyo hints that calcium ions played a crucial role in shaping life's earliest molecular structures. The team discovered that calcium dramatically alters how tartaric acid molecules link together, favoring homochiral polymers and potentially influencing the emergence of life.
Scientists at Ruhr University Bochum have shed light on the structure of supercritical water, finding that water molecules form few hydrogen bonds in this state. The research reveals that water behaves like a gas, with short-lived molecular interactions between hydrogen and oxygen atoms.
Researchers at Lawrence Berkeley National Laboratory have discovered the first organometallic molecule containing berkelium, a highly radioactive element. The discovery reveals that berkelium exhibits a unique tetravalent oxidation state, challenging traditional understanding of its behavior in the periodic table.
A recent study found that polyester microdroplets can form in salt-rich environments, at low alpha-hydroxy acid concentrations, and in small reaction volumes. This expands on previous research and suggests that polyester protocells were likely more common on early Earth than previously thought.
A research team led by Paolo Falcaro has developed a microporous crystal compound that detects toxic chemical compounds produced when protein-rich foods spoil. The ERC Proof of Concept Grant will explore practical applications for the composite ink, which changes color depending on the concentration of toxic compounds.
Researchers have developed a simple model system to break down fibrils into their constituent single units or liquid droplets. This discovery has the potential to treat neurodegenerative diseases such as Alzheimer's and Parkinson's by targeting pathological fibrils.
An international team of scientists created a platinum-nickel nanolayer on an electrode using electrodeposition, observing the formation of spherical nanoparticles with densely branched structures. TEM and STXM imaging revealed the layer's composition as nickel(II) oxide and metallic platinum.
The university introduces Bachelor of Engineering in Robotics and Double Major Bachelor of Engineering Science in Process Engineering and Synthetic Chemistry to address global demand for roboticists. The programs incorporate AI-related elements and are designed to provide students with a unique skill set.
A study of human skeletal remains from the Tudor warship Mary Rose reveals that handedness may influence clavicle bone chemistry as people age. The analysis found increased mineral content and decreased protein content in right clavicles compared to left, suggesting repeated stress on the right side during activities like sailing.
Scientists have developed an electrochemical approach using catalysts derived from used lithium-ion batteries to produce hydrogen peroxide. The method utilizes carbon nanostructures and cobalt, displaying catalytic properties in oxygen reduction reactions.
Researchers developed a novel compound to target prostate cancer using radioactive atom astatine-211, potentially overcoming issues with previous compounds like deastatination. The study found high accumulation in tumors and low accumulation in vital organs, highlighting the potential of this new compound for targeted alpha therapy.
A new structure of light has been discovered that can accurately measure chirality in molecules, a property of asymmetry important in physics, chemistry, biology, and medicine. This 'chiral vortex' provides an accurate and robust form of measurement, allowing for the detection of chiral biomarkers.
Scientists have developed a unique strategy to control molecular conductance using shape-persistent ladder-type molecules. This approach enables the synthesis of diverse, charged molecules with consistent electronic properties, paving the way for reliable and efficient devices.
A new organic molecule thienyl diketone achieves high-efficiency phosphorescence more than ten times faster than traditional materials. This breakthrough provides design guidelines for developing metal-free organic phosphorescent materials, promising significant advancements in various applications.
Research using a novel microscopic technique reveals that gold nanoparticles' lethality to cancer cells is more complex than previously thought. Smaller nanoparticles can regenerate and divide after initial stress, while larger star-shaped particles cause oxidative stress leading to programmed cell death.
A new method for visualizing molecular orbitals has been developed, enabling scientists to analyze molecular dynamics and deformations in molecular films more easily. The technique, called PhaseLift-based photoemission orbital tomography (POT), allows for precise visualization of electronic states with a single set of measurements.
Assistant professor Yinsheng Guo is developing a comprehensive understanding of metal halide perovskites, promising semiconducting materials for energy technologies. He also seeks to transform how physical chemistry is taught using computational and experiential approaches.
This year's winners include Professor Neil Kelleher, Dr. Tamir Gonen, Professor Margaret Sunde, and more, recognized for their pioneering research in top-down proteomics, membrane proteins, amyloid studies, and human health applications.
A new statistical-modeling workflow can quickly identify molecular structures of products formed by chemical reactions, accelerating drug discovery and synthetic chemistry. The workflow also enables the analysis of unpurified reaction mixtures, reducing time spent on purification and characterization.
Researchers developed a unique microfluidics-based diagnostic system that combines optical tweezers with stimulated Raman spectroscopy to enable fast and accurate diagnosis of leukemia. The device can identify cancer cells based on their metabolic activities and metabolites, providing tailored treatment options.
Researchers develop framework to assess relative value of rules and data in AI models, improving efficiency and accuracy in scientific problems. The framework optimizes model training by tweaking the influence of different rules, filtering out redundant ones, and identifying synergistic relationships between rules.
Scientists successfully synthesized pantetheine, a chemical essential for all living things, in lab conditions mimicking early Earth. The compound is crucial for metabolism and may have played a role in the emergence of life on Earth.
Researchers at LMU developed pMINFLUX multiplexing to overcome traditional resolution limits in super-resolution microscopy. This allows for simultaneous localization of multiple dyes and investigation of rapid dynamic processes between biomolecules.
Researchers from Pohang University of Science & Technology developed a new gel-based battery system using micro silicon particles and gel polymer electrolytes, enabling stable performance even with larger silicon particles. The system exhibits improved energy density and is ready for immediate application.
Researchers propose new statistical index to detect river ecosystem changes, potentially preventing tragedies like the Oder River crisis. The developed index is more versatile and responsive to variations in individual parameter values.
Researchers developed a novel deep learning method to study crystal structure and molecular interactions of perchlorate salts. The analysis revealed that the explosives' nature is linked to chemical bonding and intermolecular interactions.
Researchers have found that the key step to protein formation can occur in droplets of pure water, where amino acids connect to form peptides with the same 'L' handedness. The discovery resolves a paradox and provides new insights into the early stages of life's chemical evolution.
A team at Pohang University of Science & Technology has successfully created the world's first plumber's nightmare structure in block copolymers, a complex configuration where polymer chain ends coalesce inward. This achievement showcases the potential for self-assembly in block copolymers and opens up new possibilities for materializi...
Researchers at Worcester Polytechnic Institute have developed a material to selectively oxidize urea in water, producing hydrogen gas. The material, made of nickel and cobalt atoms with tailored electronic structures, enables the efficient conversion of urea into hydrogen through an electrochemical reaction.