Articles tagged with Chirality
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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.
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.
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 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.
GIST researchers develop tunable optical properties in nanostructures, enabling applications in wound healing, drug delivery, and secure verification. A clock-inspired design featuring magnesium nano-rotamers demonstrates programmable polarization-resolved coloration.
A new catalyst developed by researchers at Nagoya University successfully synthesized a key intermediate for the incontinence drug oxybutynin in 5-30 minutes, significantly faster than existing methods. The discovery represents a major advance in chiral drug synthesis and holds great promise for future drug discovery efforts.
Scientists at the University of California, Davis, have successfully synthesized specific chiral molecules using rearrangements of simple hydrocarbons and complex organic catalysts. This breakthrough enables better harnessing of hydrocarbons for various purposes, including precursors to medicines and materials.
Researchers at MIT find that slow-flowing liquid crystals can spontaneously assemble into large, twisted, chiral structures, opening a new path to generating chiral materials. These structures could serve as spiral scaffolds for assembling intricate molecular structures and be used as optical sensors.
Researchers discovered that chiral phonons, which exhibit circular motion, interact differently than linear phonons and have a larger magnetic moment in topological materials. This finding enhances thermal conductivity and opens new possibilities for advanced devices and applications.
Researchers at USTC developed novel chiral boryl radical catalysts for asymmetric catalysis, achieving high reaction efficiency and selectivity. The catalysts exhibit exceptional capabilities in constructing chiral functional molecules through a precision-controlled catalytic cycle.
Researchers develop methods to introduce chirality into materials, enabling tunable properties in thin films. The discovery has potential applications in pharmaceuticals, biomedicine, communication and energy.
Researchers at University of Illinois developed new semiconductor materials that can harness the power of chirality, a non-superimposable mirror image. The study found that subtle molecular changes can modulate chiral helical assemblies, leading to new optical, electronic, and mechanical properties.
A new study using twisted magnets as computational medium has made brain-inspired computing more adaptable, reducing energy use and potential carbon emissions. The research found that by applying magnetic fields and changing temperature, physical properties of the materials can be adapted to suit different machine-learning tasks.
Researchers at Rice University have discovered a way to transform a rare-earth crystal into a magnet by using chirality in phonons. Chirality, or the twisting of atoms' motion, breaks time-reversal symmetry and aligns electron spins, creating a magnetic effect.
Researchers successfully developed a novel method for transforming atropisomers into specific enantiomers using the Pauson–Khand reaction. The reaction achieved high enantiomeric excesses and selectivity, opening up new avenues for synthesizing pharmaceutical compounds.
Researchers have engineered a range of new single-walled transition metal dichalcogenide (TMD) nanotubes with different compositions, chirality, and diameters. The ability to synthesize diverse structures offers insights into their growth mechanism and novel optical properties.
The study successfully observed the chiro-optical effect at the nanoscale, demonstrating the ability to analyze the chiral structure of matter using light. Different images were obtained when illuminating with right- or left-circularly polarized light, clarifying that local handedness can be distinguished.
Researchers have made a significant advancement in the synthesis of β-lactam scaffolds, structural components frequently found in essential antibiotics. The breakthrough uses nickel catalysts to overcome challenges in β-lactam synthesis, enabling more efficient and simplified production of high-value materials.
A new approach to quantum light emitters generates circularly polarized single photons, a crucial step towards quantum cryptography and information processing. The innovation uses a proximity-effect approach to produce low-cost fabrication and reliability.
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 at CABBI develop photoenzymatic system to efficiently synthesize chiral amines, crucial chemical building blocks with wide applications. The team's new method addresses a longstanding challenge in synthetic chemistry and offers a promising platform for biomanufacturing.
A new study by Prof. Yossi Paltiel and colleagues reveals that nuclear spin significantly affects oxygen dynamics in chiral environments, particularly in transport. This finding challenges long-held assumptions and opens up possibilities for advancements in biotechnology and quantum biology.
A team led by Takuro Sato found that the chiral-induced spin selectivity (CISS) effect can filter out electrons and molecules with specific chirality, enabling enantioselectivity without chiral catalysis. This discovery has broader applications in producing safer chemicals and developing advanced electronics across various scales.
Researchers at Texas Tech University and Nanjing University have developed a new method for controlling chirality in asymmetric catalysis using chiral aggregates. This method, called aggregation-induced catalysis (AIC), uses the aggregation of chiral auxiliary raw materials or catalysts to achieve controlled chirality in reactions. The...
Researchers at Nagoya University developed a method to process cholesteric liquid crystals into micrometer-sized spherical particles, creating a unique anti-counterfeiting QR code that can only be displayed under a specific circular polarizer. The use of chirality in these particles enables the creation of more secure codes with potent...
Researchers successfully synthesized isotopic atropisomers based on carbon isotope discrimination, exhibiting high rotational stability and stereochemical purity. The findings hold promise for fundamental understanding of isotopic atropisomers with implications in organic and medicinal chemistry.
A team of chemists at UC Riverside has discovered that the distribution of a magnetic field is itself chiral, allowing for the rapid formation of chiral structures. This method has potential applications in sensing and anti-counterfeit technology, such as detecting chiral or achiral molecules linked to certain diseases.
Researchers employ DFT and NEST analysis to investigate pyrrolidinyl gold(I) complexes, revealing enhanced understanding of electronic and steric effects. The findings facilitate the design of novel chiral ligands for enantioselective reactions.
Researchers have discovered a new phase of matter called the chiral bose-liquid state, which has surprising characteristics, such as robust spin and long-range entanglement. This discovery opens up new possibilities for understanding the physical world and potentially leading to breakthroughs in quantum computing.
Physicists have discovered that phonons, quasiparticles describing crystal lattice vibrations, can exhibit chirality - a fundamental concept with implications for material properties. Using circular X-ray light, researchers observed corkscrew motions of phonons in quartz, revealing the phenomenon of chiral phonons.
A team of Japanese researchers has successfully developed a recycling photoreactor that enables the synthesis of optically pure compounds with high yields, achieving an optical purity of 98-99%. The system uses a two-step rapid photoracemization process and can produce enantiomerically pure chiral sulfoxides in yields higher than 80%.
Researchers have developed a modular system to recognize chiral molecules, which could lead to more effective methods of separating enantiomers in drugs. The system uses metallopolymers with chirality to sense two enantiomeric molecules through electrochemical interactions.
A team led by Taylor Hughes and Gaurav Bahl has experimentally realized a theoretical extension of chirality in two dimensions. They constructed a topological circuit network to explore new behaviors predicted by this extended chirality, which manifests as locking between a particle's flow direction and an arrow carried along with it.