Articles tagged with Chirality
Researchers at UC San Diego create computational approach to model chiral helimagnets using quantum mechanics calculations. They successfully predicted key parameters, including helix wavevector, period, and critical magnetic field, opening opportunities for designing better materials.
Scientists at Tohoku University and collaborators have made a significant discovery about how magnetic twist induces one-way electric flow in a unique quantum material. By studying the material's electronic behavior, they found that the 'magnetic twist' directly triggers electronic band asymmetry, leading to nonreciprocal transport.
Researchers have made a breakthrough in creating artificial chiral-structural-color materials, exhibiting iridescent colors through microscopic structures that interact with light. The new discovery enables the creation of microdomes composed of widely available polymers that produce exceptional dissymmetry and polarization selectivity.
A novel mixed-ligand strategy creates ultrahigh surface area, chemically stable chiral MOFs ideal for practical applications in asymmetric catalysis. The frameworks demonstrate record-breaking surface areas and exceptional structural features, making them suitable as heterogeneous catalysts.
Researchers at Swiss Federal Laboratories for Materials Science and Technology (EMPA) solve the molecular einstein problem, revealing a unique arrangement of chiral molecules on silver surfaces. The discovery sheds light on the properties of these molecules and their potential applications in physics.
Scientists develop mechanochromic luminescence using chiral pyrenylprolinamides, a significant step towards widespread implementation of materials with switchable solid-state CPL. The findings provide new design guidelines for creating molecules that enable solid-state CPL switching through mechanical stimuli.
Scientists studying neutron 'starquakes' hope to gain new insights into the properties of neutron stars, improving our understanding of the universe. This research has potential implications for fields like health, security, and energy.
Researchers at Mainz University confirmed the chiral-induced spin selectivity (CISS) effect using spintronic methods. The study shows that chiral molecules can convert spin currents to charge with varying efficiency, depending on their chirality and orientation.
Researchers synthesized optically active conducting polymers through physical methods using liquid crystals as solvents, achieving asymmetric (chiral) living polymerization. The resulting polyisocyanides exhibited optical activity and properties of twisted-bend nematic liquid crystal.
Scientists have successfully created nanoislands on silicon that can be controlled by an external electric field. These nanoislands exhibit swirling polar textures with promise for future applications in ultra-high-density data storage and energy-efficient transistors.
A team of researchers from Singapore University of Technology and Design has developed a new type of metasurface that can generate circularly polarized light without complex optical setups. The metasurface exhibits chirality, enabling it to convert arbitrary optical excitation into circularly polarized light at specific frequency ranges.
Researchers develop a nano-heater aligned to one arm of the micro-resonator for deterministic, dynamic tuning of chirality and precise phase-only control. This leads to enhanced electro-optic amplitude modulation in photonic integrated circuits, reducing energy consumption and simplifying circuit design.
The study reveals that twisting the filament at micro and nanoscale produces light waves with elliptical polarization, offering a new avenue for robotic vision systems. Brightness is up to 100 times brighter than other approaches, but includes a broad spectrum of wavelengths and twists.
Mirror bacteria, synthetic organisms with reversed molecular shapes, may impair immune defenses in humans, animals, and plants. The researchers call for a global discussion to chart a path towards better understanding and mitigation of potential risks from these organisms.
Researchers at Singapore University of Technology and Design have designed a novel tool inspired by a spiral ladder to control circular polarised light. The bilayer metasurface structure can be tailored to emit waves with specific angles, wavelengths, and polarisation properties.
Researchers demonstrate the first cross-chiral exponential amplification of an RNA enzyme, potentially leading to the development of cross-chiral therapeutics and biotechnologies. The discovery suggests that a bioengineer can create a new form of biochemical evolution by using both left- and right-handed molecules.
Researchers at Tohoku University have developed a novel catalyst to control the atomic arrangement of carbon nanotubes, achieving ultra-high purity and precise chirality. The breakthrough could lead to significant advancements in semiconductor device manufacturing.
Researchers create magnetically switchable materials by introducing chiral hydrogen bonds, allowing precise control over electron transfer. The study highlights the importance of molecular chirality in material performance.
Researchers developed a broadband CPL photodetector using an achiral structure to detect left- and right-hand circularly polarized light with an ultrahigh discrimination ratio. The device operates across the entire visible spectrum and can accurately detect small changes in light ellipticity.
UCF researchers have developed a unique 'barcode' technique to quickly identify chiral molecules based on their infrared fingerprints. This technology has the potential to speed up pharmaceutical and medical advancements by identifying enantiomers, which can have different effects in the body or chemical reactions.
The SNU-KAIST joint research team developed a novel visible light communication encryption technology with high security using chiral nanoparticles. This technology uses unclonable nanoparticles like fingerprints to encrypt information, making it impossible to intercept without detailed information about the nanoparticles.
Researchers have discovered that the strength of a coupling between nuclear spins depends on the chirality or handedness of a molecule. The study found that in molecules with the same handedness, the nuclear spin aligns in one direction, while in molecules with opposite handedness, it aligns in the opposite direction.
Researchers developed a microchip that captures exosomes from blood plasma to identify signs of lung cancer, achieving 10x faster detection and 14x greater sensitivity. The chip uses twisted gold nanoparticles to distinguish between healthy patients and those with lung cancer.
Researchers at Institute of Science Tokyo create terpene-based chiral capsules that facilitate the easy preparation of well-defined host–guest composites with tunable chiroptical properties. The resulting composites can be used in water without organic solvents, paving the way for advances in cutting-edge optical technologies.
Scientists developed a chiral nanocomposite probe for in vitro UCL/CD dual-mode sensing of H2S and in vivo imaging using upconversion nanoparticles. The ZIF-8 encapsulation shell eliminates interference effects, achieving highly selective detection.
Researchers at the Max Planck Institute have made a groundbreaking discovery in chiral materials, enabling the creation of orbital electronics. The study reveals that certain materials naturally possess orbital angular momentum monopoles, which can be harnessed for memory devices and other applications.
Researchers have discovered chiral topological semi-metals that possess properties making them suitable for generating currents of orbital angular momentum (OAM) flows. This breakthrough paves the way for the development of energy-efficient devices in orbitronics, a potential alternative to traditional electronics.
Researchers at KIT develop new NMR spectroscopy method to directly measure chiral molecular structure. This enables accelerated drug screening and simplifies the search for active ingredients in pharmaceuticals. The breakthrough could lead to significant improvements in drug development.
A new study sheds light on the chemistry surrounding peptide helices, which are crucial for protein structure and function. The research details how different amino acid sequences influence helical structures, offering potential for designing new molecules in medicine and biotechnology.
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.
Researchers developed a new superconductor material that uses a delocalized state of an electron to carry quantum information. The material could be used to create low-loss microwave resonators for quantum computing, which is critical for reducing decoherence and increasing the stability of qubits.
Researchers have developed a technique to image magnetic structures in micrometer-thick magnets using coherent X-ray phase dichroism. This enables the study of previously inaccessible 3D textures in chiral magnets and giant magnetofossils, opening new avenues for spintronics and rock magnetism research.
Researchers from Tokyo University of Science created a novel mechanical motif, double-helical monometallofoldamers, with controllable chiral switching properties. The new molecule can undergo inversion switching in response to external stimuli, paving the way for novel high-order molecular systems and molecular information processing.
Scientists have developed a UCNPs/Cu x OS@ZIF nanocomposite probe for in vitro H2S sensing and in vivo imaging. The probe uses a zeolitic framework to selectively detect H2S, eliminating interference from other molecules.
Researchers at the University of Bath have discovered a new optical phenomenon called hyper-Raman, which can penetrate deeper into living tissue and yield images with better contrast. This effect has significant potential applications in pharmaceutical science, security, forensics, environmental science, art conservation, and medicine.
A rhodium-catalyzed [2+2+1] cycloaddition reaction expands the possibilities for creating complex organic molecules. The researchers achieved high enantiomeric excess values of 94-99% using phosphine ligands, enabling the synthesis of diverse compounds.
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 at University of Konstanz shape electron matter wave into left- or right-handed coils of mass and charge. This achievement has implications for fundamental physics and potential applications in quantum optics, particle physics, and electron microscopy.
The study reveals how the secondary structure of helical polymers influences their aggregation and size control. Researchers designed nanoespheres with varying densities and controlled their size by adjusting water-to-solvent ratios. Light-triggered release offers tailored solutions for targeted drug delivery.
A team of experimental physicists has achieved a breakthrough in topological quantum computing by inducing superconducting effects in edge-only materials. This discovery could lead to the development of stable and efficient quantum computers, with potential applications in fields like quantum computing and technological advancements.
Scientists at Yokohama National University have developed a novel approach to create dual-pore molecular crystals with two distinct functionalities. By using quasi-racemates, the researchers achieved social self-sorting of two pairs of quasi-racemates to form ring-shaped molecules with varying pore sizes.
Scientists at the University of Bath discovered a new nonlinear optical property that measures the twist in tiny particles, similar to viruses and bacteria. This finding enables real-time particle size analysis and has significant implications for various fields like display technology, chemical catalysis, and medicine.
Researchers found that chiral gold nanoparticles exhibit high selectivity for left- or right-handed circularly polarized light with a dissymmetry factor of approximately 0.7, outperforming previous materials. The findings suggest potential applications in anti-counterfeiting and quantum information using circularly polarized light.
A team of researchers from Penn State and the University of Nebraska-Lincoln developed an optical element that can control the direction of polarized electromagnetic light waves. This allows them to identify the chirality of molecules by determining how polarized light interacts with them, which is crucial for biomedicine applications.
A team at Pohang University of Science & Technology has developed a novel stretchable photonic device that can control light wavelengths in all directions. The device leverages structural colors produced through the interaction of light with microscopic nanostructures, allowing for vivid and diverse color displays.
Researchers have developed a new material that can twist light at extremely high temperatures, opening up possibilities for advanced optical devices. This breakthrough could enable better aircraft flight performance and create multifunctional devices for various industries.
Researchers at USTC developed a novel molecular-solid sensor enabling fast chiral recognition of amino acids through RTP. The method overcomes limitations of traditional luminescence-based methods with recognition times as short as a few minutes.
Researchers created an enzyme with a reactive boronic acid group, enabling faster and more selective catalytic reactions. This breakthrough has potential applications in the pharmaceutical industry, offering a greener alternative to traditional chemical synthesis methods.
Researchers at Penn State have developed a new, improved material called borophene, which is more conductive, thinner, lighter, stronger, and more flexible than graphene. The team has also imparted chirality on the material, enabling it to interact with cells and other biological units in unique ways.
Researchers from North Carolina State University and the University of Pittsburgh studied how pure spin currents move through chiral materials. They found that the direction of spin injection affects its absorption in chiral materials, which could enable the design of energy-efficient spintronic devices for data storage, communication,...
Researchers visualize chiral interface state at atomic scale for the first time, allowing on-demand creation of conducting channels. The technique has promise for building tunable networks of electron channels and advancing quantum computing.
Researchers at Tohoku University propose a new concept for magnet-based memory devices using helical magnets' chirality to resolve crosstalk issues. The devices can be written and read out at room temperature, offering potential for high-density, non-volatile storage.
Researchers used the sphinx tile to explore geometry and chirality in life, finding unexpected properties related to its chirality. The study reveals superexponential increases in possible layouts as the number of sphinxes grows, with some tilings having nearly 72,000 possibilities.
Researchers have developed a printable organic polymer that enables them to measure charge-to-spin conversion in spintronic materials at room temperature, revealing new insights into the mechanics of spintronics. The findings suggest longer spin lifetimes and tunability, paving the way for more efficient and energy-friendly devices.
Researchers from Nano Life Science Institute discovered how genetically designed peptides form single-molecule thick crystals on graphite surfaces. The behavior is directly related to their molecular architecture, with negatively charged and positively charged peptides forming unique oblique lattices.
The team developed helical, magnetically active conductive polymers inspired by cyclosporine A, exhibiting unprecedented electron spin activity and anisotropy. The synthesized polymer demonstrated circularly polarized electron spin resonance in the microwave region.
A UCF-developed technology uses a plasmonic platform to detect the chirality of molecules with high precision, enabling more accurate drug development and therapies. The platform improves upon current methods with sensitivity nearly 13 orders of magnitude greater.
Researchers at Waseda University studied the behavior of chiral skyrmions in chiral flower-like obstacles and found that they exhibit active matter-like behaviors. The system can be used to develop a topological sorting device, which may create ordered results from disordered motion.
Researchers have discovered a new state of matter characterized by chiral currents, generated by cooperative electron movement. This phenomenon has implications for the development of new electronic devices and technologies, including optoelectronics and quantum technologies.
Researchers from Tokyo Metropolitan University have created a new platinum-iridium-zirconium compound that transitions to a bulk superconductor below 2.2 K and exhibits a chiral crystalline structure. The team's 'mix and match' approach accelerates the discovery of exotic superconducting materials.