Scientists have discovered a new type of 3D chirality that exhibits unique macroscopic properties, including fluorescence and strong optical rotation. The discovery was made possible through the use of advanced synthesis techniques, including double cross-couplings and retro-synthetic analysis.
A new intercalation strategy boosts superconductivity in layered materials, enabling tailored topological properties. The method, developed by Tsinghua University researchers, shows enhanced superconductivities and good sample stabilities in intercalated MoTe2 and WTe2.
A new metasurface design enables high-directional beam forming in a wide band, with sidelobe levels below -10dB. The proposed design breaks the current bandwidth limit in transmission-type coding metasurfaces, indicating potential applications in radar and wireless communication systems.
Scientists have discovered a novel gold nanocluster that can inhibit Aβ monomer formation, dissolve preformed fibrils and restore conformation of peptides. The nanocluster also has good biocompatibility and infiltration ability across the blood-brain barrier.
Researchers found that capillary forces in graphene oxide hydrogels can be regulated by surface tension, allowing for the creation of dense yet porous materials. By using solvents with different surface tensions, the microstructure of the resulting materials can be precisely manipulated and densified.
Researchers developed a new organic photovoltaic cell with an efficiency of 17%, achieved through optimized chemical structures and improved processability. The study demonstrates the potential for larger-area production, expanding the field of organic photovoltaics.
A new quantum process tomography method based on convex optimization effectively characterizes quantum channels, revealing their true action with high accuracy. The method demonstrates excellent performance in both unitary and non-unitary quantum channels, achieving up to 99.5% accuracy.
Researchers successfully measured the full quantum geometric tensor in a solid-state spin system using coupled qubits in diamond. The technique enables precise measurement of the tensor's matrix elements, including Berry curvature and Riemannian metric.
Scientists have discovered a new method to realize non-Abelian braiding in a non-Majorana system by constructing Jackiw-Rebbi zero-modes in a quantum spin Hall insulator. This breakthrough has the potential to enable topological quantum computation without superconductivity, offering advantages over Majorana-based systems.
Researchers have developed a wide-spectrum responsive Bi8(CrO4)O11 nanorod photocatalyst with exceptional performance in water oxidation and pollutant degradation. The new material enables efficient conversion of sunlight into chemical energy, facilitating the simultaneous degradation and mineralization of pollutants.
Scientists have developed a simple and precise cancer therapy approach based on selective electrochemical generation of H2 in tumor regions. The H2-ECT method enables large-scale tumor therapy with ideal selectivity and targeting to kill tumors with minimal damage to normal tissue.
Researchers discover magnetic vortex clusters in one-dimensional manganite wire stabilized by artificially engineered strain state. Phase-field modeling supports the role of inhomogeneous strain in vortex formation. This work offers a new strategy for building emergent spin textures and designing magnetoelectronic devices.
Researchers have developed a new filtered flamelet model for predicting turbulent combustion, reducing uncertainty by using filtered quantities instead of unfiltered ones. The model demonstrates promising performance and agrees well with experimental data, paving the way for further improvement and case tests.
Scientists analyze Wuhan CoV genetic relationship with other coronaviruses and model its spike protein to evaluate human transmission risk. The study suggests bats as the native host of Wuhan CoV, but intermediate hosts may be involved in transmission.
Researchers have found that non-encapsulated few-layer CrI3 has a rhombohedral structure at low temperatures, contradicting previous findings. The study also shows spin-phonon coupling occurring below 60K, which affects the Hamiltonian of Raman modes and has potential implications for novel spintronic devices
A general information theory of metasurface has been proposed to analyze the relation between the information of metasurface and its far-field radiation pattern. The scientists found an upper bound of information contained in the radiation pattern of a metasurface, revealing theoretical upper limit of orthogonal radiation states.
Researchers at UT University have developed an algorithm that improves Raman spectroscopy's signal-to-noise ratio, allowing for faster graphene mapping. The technique can also be applied to other two-dimensional materials, such as germanene and silicene.
Researchers have designed and synthesized an atomically dispersed co-promoter of Sn and Zn on the CuO surface, demonstrating a greatly enhanced promoting effect in the industrially important Rochow reaction. The synergistic interaction between single-site Sn and Zn co-promoters leads to improved catalytic performance.
Researchers manipulate ferroelectric domain walls in bismuth ferrite thin films using piezoresponse microscope, achieving oriented growth and configuration control. The study provides a generalizable approach for DW dynamic studies and advanced tunability of conductive DWs.
A general framework for automatic diagnosis of manufacturing systems was proposed, using convolutional neural networks to extract hidden degradation features from noisy time-course data. The framework performed well in benchmark applications and can be applied in diverse contexts.
Scientists create a bilayer platform that can alter surface topographies using shape-memory polymers and gold nanorods to promote cell polarization and collective migration of vascular endothelial cells. This approach enables dynamic manipulation of cell functions, mimicking the native ECM-mediated effects in the human body.
Researchers designed a new yolk-shell structured hybrid material by encapsulating metal-organic framework (MOF) into hollow mesoporous carbon spheres, achieving superior bifunctional electrocatalytic activity towards both oxygen reduction and evolution reactions. The hybrid material shows promise as an efficient electrocatalyst in fuel...
Scanning Raman picoscopy enables visualization of vibrational modes and direct construction of molecule structures. Researchers achieve Ångström-resolved imaging, correlating local vibrations with constituent groups to assemble molecules in real space.
Researchers from Tongji University and The Hong Kong Polytechnic University developed a compact broadband acoustic absorber using imperfect components with low absorption peaks. By modulating the coherent coupling effect, they achieved quasi-perfect absorption across a broad frequency range (870 - 3224 Hz) with an average coefficient o...
Researchers at Southeast University have developed a novel kind of microtort with stable structural color for multiplex assays. These micromotors can efficiently accelerate mixing speed and increase probe-target interactions, leading to faster and more sensitive detection. The unique structural color coding allows for simultaneous mult...
African swine fever virus can replicate in various pig cells and has a relatively conservative genome. Whole-genome sequencing is crucial for understanding the transmission route of ASFV. Nanopore sequencing technology proved more efficient than traditional next-generation sequencing methods in obtaining viral genomes.
Researchers predict a new type of multiferroic material that combines ferromagnetism and electric polarization, potentially leading to efficient magnetic reading and writing. The study suggests that diverse magnetoelectric couplings can be achieved in thin layers, making it a promising direction for practical applications.
Researchers developed a new method to pre-replenish lithium for lithium-ion supercapacitors using DMF-stabilized lithium nitride. This technology improves specific energy, rate performance, and cycle stability, with 90% energy retention after 10,000 cycles.
A team of scientists has discovered a voltage-induced 'superfluid' like penetration effect in liquid metals at room temperature, mimicking the properties of liquid helium superfluids. The phenomenon occurs due to the reduction of surface tension, enabling the liquid metal to superwet and penetrate porous materials.
Scientists developed a novel method to create zebrafish with conditional gene knockout and knock-in switches in one step. The strategy uses CRISPR/Cas9-mediated non-HR insertion, allowing for efficient targeting of specific genes and the creation of reporter lines with fluorescent markers.
Researchers have discovered a much larger transverse figure of merit in topological semimetals compared to their longitudinal counterparts. This is attributed to the coexistence of electrons and holes contributing additively and high charge mobility without lattice imperfections.
Recent fossil discoveries revealed three evolutionary patterns on the Tibetan Plateau: local endemism, out-of-Tibet dispersal, and intercontinental exchange. These patterns reflect the biological responses to tectonic uplift and its impact on biota globally.
Recent methodologies for generating hierarchical porous metal-organic frameworks (MOFs) have been reviewed. Techniques such as template, etching, and construction of composites enable the creation of multi-level pore structures. These advancements facilitate improved mass transfer and guest diffusion in MOF-based applications.
The East Asia VLBI Network observed the afterglow of TeV Gamma-Ray Burst 190114C, providing unique opportunities to study its progenitor and pre-burst medium. The non-detection results place strong upper limits on parameters extracted from different theoretical models of GRBs.
Chinese scientists made significant contributions to climate studies, including statistical analyses of temperature and precipitation changes. They studied the formation mechanisms of climate disasters and extreme events, laying the physical foundation for climate disaster prediction in China.
Chen WeiQiu's team discovers a way to tailor topological states in acoustic materials by selecting specific boundaries, enabling dual-channel propagation and one-way propagation of sound waves. This breakthrough leads to the design of tunable acoustic devices with new possibilities.
Researchers employ neural networks to predict molecular bond energies, reducing computational cost and improving accuracy. The combination of AI and quantum chemistry calculations provides an efficient tool for quickly predicting molecular bond energies in complex systems.
The study investigates the defect dynamics in ceria nanowires under heating using in situ aberration-corrected TEM. The findings show that defects grow into regular rhombic or hexagon shapes at high temperatures, introducing more reactive sites and maintaining the cubic fluorite structure.
Researchers propose a scheme to enhance the transition temperature of atomic Fermi gases by tuning the pairing interaction strength and lattice spacing, leading to high Tc/TF ratios. This concept has the potential to simulate high Tc superconductivity and aid in the design of new superconductors.
Researchers developed a high-efficiency and low-cost preparation method of 2D materials using intermediate-assisted grinding exfoliation. The technology overcomes mass production challenges, enabling the commercialization of 2D materials for various applications.
Researchers developed a modified Mg metal anode via surface ion-exchange reaction, enabling stable electrochemical performance and reversible plating/stripping at high current densities. The artificial layer improves ion transport kinetics, reducing overpotential and increasing battery lifespan.
Scientists have developed a novel polymer binder with single lithium-ion channels that effectively immobilizes polysulfide intermediates, maintaining the structure integrity of sulfide cathodes. The binder improves Li-S battery performance by increasing energy density and capacity retention.
Researchers created manganite nanowires with controlled quenched disorder, revealing enhanced magnetoresistance. Quenched disorder plays a significant role in complex oxide systems.
Researchers have made breakthrough in bridging the gap between surface plasmon polaritons and the digital world by developing active digital spoof plasmonics. This technology enables real-time manipulation of confined electromagnetic waves, opening up new avenues for novel system applications.
Researchers discovered an olivine-norite rock in the South Pole-Aitken basin, suggesting it crystallized from the impact-derived melt pool. The fine-grain texture of the rock supports fast cooling thermal conditions.
Researchers analyzed hundreds of hyolith fossils and discovered soft parts with tentaculate feeding organs, challenging the current phylogenetic placement. The findings suggest that hyoliths likely occupied a more basal position in the Lophophorata, contrary to previous assumptions.
Researchers have discovered that balancing elementary steps in alkaline hydrogen evolution reactions can improve electrocatalytic performance. By designing nanocrystals with tunable Ni/NiO heterosurfaces, the team found that a balanced composition ratio is crucial for promoting alkaline HER performance.
A recent study found that the autocatalysis of water enhances the formation of COOH intermediate through proton transfer, accelerating CO generation while hindering methanol synthesis. The research also revealed that high initial partial pressure of water inhibits CO2 conversion due to excessive OH* coverage.
Researchers have developed a new multilayered complex that displays high-performance near-infrared electrochromism. The complex, prepared by layer-by-layer coordination assembly on metal oxide substrates, exhibits two reversible redox waves and excellent electrochromic performance with a contrast ratio of up to 56% at 1150 nm.
A recent study analyzed climate change impacts on grain price anomalies in the NCP during 1736-1850. Grain prices increased significantly with climatic transition, and were negatively correlated with precipitation levels.