The study successfully generates second-harmonic generation (SHG) under low pump power, reducing it by three orders of magnitude. The device also exhibits broadband tuning and self-enhanced SHG, offering potential applications in optical fiber communication and sensing technology.
Researchers analyzed stress perturbation on the Maqin-Maqu segment of the Eastern Kunlun fault after the 2021 Ms7.4 Maduo Earthquake, finding it likely to be substantially stressed and promote earthquakes on the seismic gap. The study predicts increased seismic activity in surrounding faults.
Biomedical polymers show great potential in treating various diseases through targeted drug delivery and precise diagnostics. Recent advances have led to the development of intelligent polymeric carriers that can respond to external or intrinsic signals for enhanced therapeutic efficacy.
Researchers developed a new aqueous electrolyte that enables MXene-based supercapacitors to operate at high voltages (up to 1.6 V) and wide temperatures (-40°C to 60°C), while maintaining energy density of up to 31.7 mWh cm– .
Researchers have identified two major failure mechanisms of lithium metal anodes: short-circuiting and capacity loss. A new classification system proposes five categories of anodes, including stabilized lithium-metal powder and composite lithium-metal anodes, which show promising potential for practical application.
Researchers developed a novel composite solid-state electrolyte with high ionic conductivity, enabling long-life 4.4 V-class solid-state lithium metal batteries. The electrolyte exhibits uniform, reversible Li plating/stripping behaviors and delivers 79.7% capacity retention after 500 cycles.
Researchers introduce a new strategy to produce highly robust COF monoliths through melt polymerization, overcoming issues of low processability and lack of stability. The new method yields olefin-linked COF foams with excellent mechanical properties and high adsorption capacities.
Researchers found a significant shift in gut microbiota and metabolites associated with altitude-induced cardiac hypertrophy in rats. Probiotics treatment improved the condition by altering the abundance of certain microbe genera.
Researchers developed a catalyst using graphdiyne and Cu single atoms, achieving high turnover frequencies and selectivity for benzene oxidation to phenol. The unique structure of graphdiyne enables uniform anchoring of Cu single atoms, resulting in improved catalytic performance.
A genome-wide screening using CRISPR-Cas9 identified KEAP1 and Nrf2 as key molecules in sorafenib resistance. The study found that ML385 can enhance the killing effect of sorafenib, while FGF21 positively regulates Nrf2 expression.
A study on the Three Gorges Dam reveals that it has caused significant reductions in annual average CO2, CH4, and N2O emissions in the Yangtze River. The dam's impact extends thousands of kilometers downstream, challenging previous assumptions about large dams' effects on greenhouse gas emissions.
Researchers developed a novel injectable stem cell assembly system to overcome cartilage tissue engineering challenges. The 3D IHI nanoscaffold-templated system effectively modulates the microenvironment and induces chondrogenesis, leading to accelerated repair of cartilage defects.
The interaction between energetic particles and tearing modes significantly affects burning plasma performance. Analytical theory describes physical phenomena, with experiments and simulations confirming results.
Researchers at USTC create flexible synthetic approach to control diameter and length of ZnSe QWs, achieving ultrathin stacking-fault free QWs. The resulting nanowires exhibit well-defined excitonic absorption in blue-light region with high efficiency for solar-to-H2 conversion.
Researchers found that circRNA rtcisE2F promotes liver tumor-initiating cell (TIC) self-renewal by targeting E2F6/E2F3 mRNAs and interacting with RNA m6A reader IGF2BP2. This interaction enhances E2F6/E2F3 mRNA stability, driving TIC self-renewal and tumorigenesis.
Researchers developed Mn-doped Ni2O3/Ni2P and Mn-doped NiXSy/Ni2P nanosheets as efficient electrocatalysts for alkaline overall water splitting. The nanostructures exhibit high intrinsic activities, abundant active sites, and excellent stability.
Recent advances in wireless epicortical and intracortical neuronal recording systems offer promising solutions for BCIs. The development of these systems faces challenges such as high throughput, power consumption, and heat accumulation.
Researchers have synthesized a high-entropy alloy with 21 uniformly composed elements, improving solar steam generation performance. The alloy's unique structure enhances interband transitions and reduces thermal conductivity, leading to improved photothermal conversion efficiency.
Scientists successfully couple polyenes into polyacetylene on a Cu(110) surface, revealing three distinct types of linkages. By modulating surface coverage, they can suppress unwanted bond formations, paving the way for controlled uniform products in on-surface chemistry.
Researchers discovered an unexpected and ultrafast synthesis of collagen-like synthetic poly-L-proline using aqueous solutions, overcoming issues with low solubility in organic solvents. The new method resulted in highly controlled polymerization, high end group fidelity, and narrow dispersity.
Researchers propose a new research paradigm for material studies based on the concept of functional motifs, which are critical microstructure units governing material functions. This approach enables the rational design of new materials with desired properties by understanding the quantitative relationships between structure and property.
The paper discusses 2D MIMO-OTA testing algorithms for UE and 3D MIMO-OTA testing algorithms for base stations in the MPAC test setup, comparing related algorithms. Key requirements for designing OTA testing systems are also summarized.
The Eastern North China Craton's destruction led to CO2 outgassing from the deep mantle. High Ca/Al and low Ti/Eu Mg isotopic compositions indicate recycled surface carbonates stored in the lithospheric mantle.
The study aims to investigate China's spaceborne Aerosol and Cloud High Spectral Resolution Lidar (ACHSRL) for its potential in retrieving aerosol and cloud data. The research reveals that the uncertainty of aerosol depolarization ratio and Poisson noise are significant error sources, but proposes correction schemes to improve accuracy.
Researchers found that ground-based VLF transmitter waves can significantly contribute to electron losses in the near-Earth space, leading to the bifurcation of the inner energetic electron belt. This phenomenon can be controlled by human VLF wave generation, which may help mitigate natural space radiation environments.
Researchers develop novel multiscale synthesis method for organic semiconductor materials, enabling color-tunable and high-performance white-light sources. The approach leverages weak intermolecular non-covalent interactions to form cocrystals, solid solutions, and core-shell microwires.
This study reveals that dihydroartemisinin (DHA) regulates splenic immune cell heterogeneity through the SOD3-JNK-AP-1 axis, which may explain its therapeutic effects in autoimmune diseases like systemic lupus erythematosus. DHA downregulates immunosuppressive molecules and upregulates effector molecules in immune cells.
Monolithic dynamic covalent polymer aerogels (DCPAs) exhibit excellent mechanical properties and can be degraded into soluble monomers. The new DCPAs can be generated by adjusting the molar ratio between amino groups and aldehyde groups, enabling closed-loop recyclability.
Researchers have discovered a significant room temperature third-order nonlinear Hall effect in type-II Weyl semimetal TaIrTe4. The effect is stable for several months and has higher contributions from Berry-connection polarizability.
Researchers developed an efficient editing system to generate transgene-free gene-edited cloned pigs, eliminating plasmid DNA integration risks and reducing culture time. The RE-DSRNP method successfully edited the WIP1 gene in Meishan pig, resulting in 97% editing rate and no off-target events.
The study analyzes global land-water-gas carbon transport and budget changes, focusing on inland water carbon budget and cycle in land-sea-gas budget. Climate change drives riverine-based carbon transport processes, while anthropogenic activities affect carbon sources, cycling, and budgets.
Researchers demonstrate the experimental realization of non-Abelian permutations in a three-state non-Hermitian system, illustrating complex eigenvalue Riemannian surfaces and exceptional points. This study provides theoretical and experimental evidence for the evolution of multiple states in non-Hermitian systems.
Scientists analyzed urine proteomes from COVID-19 patients and identified CLYBL, a citramalyl-CoA lyase that consumes itaconate in the TCA cycle. Increased CLYBL levels led to decreased itaconate levels, suggesting its potential as an immune modulating metabolite for COVID-19 treatment.
Researchers have developed nanocarriers constructed by nucleic acids with addressable and sequence specificity, showing potential in targeted delivery systems. The study explores the application of these nanocarriers in biosensing, cargo loading, and transport, as well as diagnosis and logic gates.
Researchers develop a new type of flexible cathode material that combines hierarchical porous structure with nitrogen doping, allowing for efficient iodine accommodation and stable electrochemical environment. The material exhibits impressive long-time cycling durability and high reversible capacity in zinc-iodine batteries.
Researchers introduced a proton-transfer mediator anion to Ni-Fe layered hydroxides, significantly enhancing oxygen evolution reaction performance. The resulting catalyst showed excellent electrocatalytic activity with ultralow Tafel slope and high proton transfer rate, accelerating the reaction.
Researchers propose a new patterning strategy that expands lithography techniques for fabricating multiscale functional structures. This approach uses mechanical stripping to selectively remove excess resist film, offering advantages over traditional electron beam lithography.
Researchers have synthesized a new high-entropy alloy with 21 uniformly composed elements, achieving improved photothermal conversion performance. The alloy's unique structure enhances solar steam generation efficiency, reaching 99% and 2.42 kg m^-2 h^-1 under 1 sun irradiation.
Researchers created a fast-healing elastomer that can self-repair scratches under NIR light, demonstrating potential for high-performance applications. The material's bond-level healing process was tracked using Raman spectroscopy.
Researchers designed a novel S@Ti3C2TX sandwich structure film as a high-capacity cathode for Al-S batteries, showing excellent cycling performance and reduced polysulfide shuttle effect. The film's unique structure, with a protective layer on the surface of the composite, blocks polysulfides and improves overall battery efficiency.
Researchers develop an eco-friendly method to synthesize B-doped carbon, which exhibits high efficiency in O2 reduction to H2O2. The optimal material shows a selectivity of 98% and high production rate, making it a promising low-cost electrocatalyst.
Scientists have developed a new synthesis method for phase-controlled Pd-Te nanoparticles that outperforms traditional methods. The fast, solvent-free approach uses microwaving to create high-activity catalysts for glycerol and ethylene glycol oxidation reactions.
Silage maize yield and quality properties were studied across China, revealing the impact of management practices and climatic factors on yield and nutritive value. Optimal planting density, fertilization, and growth duration were identified as key controlling factors.
Scientists Wenqian Yao and He Yang successfully fabricated continuous, uniform, and ultrathin organic films using a copper surface-mediated reaction. The growth rate and morphology of the thin films were found to be dependent on the underlying Cu substrate facet, enabling the production of high-quality two-dimensional materials.
Researchers developed a scalable strategy to fabricate multi-shelled hollow N-doped carbon nanosheet arrays with confined Co/CoP heterostructures, exhibiting enhanced HER performances and pH universality. The optimal triple-shelled structure shows low overpotentials in acidic, alkaline, and neutral media.
This study analyzes the long-term trend of summer water vapor and its mechanism over the Tibetan Plateau, finding notable increasing trends in water vapor content and net water vapor budget. The results project significant future changes in water vapor and precipitation over the plateau under global warming.
Researchers have developed a peptide hydrogel, SupraGel, that efficiently produces cell spheroids with maintained stemness. The hydrogel's biocompatibility and scalability make it an ideal platform for studying cellular complexities and screening drugs.
This study demonstrates a wafer-scale Si subulate array substrate for RRAM devices, improving cycle-to-cycle and device-to-device uniformity. The smallest curvature radius achieved is controlled by adjusting etching time, resulting in enhanced resistive window, retention characteristics, and switching voltage uniformity.
This study reveals that North Atlantic Meridional overturning circulation dominates the frequency of extreme temperature events over China during winter. The research found a significant correlation between AMOC, Siberia High, East Asian Trough, and westerly belt with the sum of extreme cold and warm days in China.
Lattice and code-based cryptography offer fresh ideas by reintegration of coding theory and cryptography for post-quantum security. Current public-key schemes vulnerable to quantum computing attacks, promising approaches include McEliece cryptosystem and lattice-based cryptography.