Design and performance study of a multiband metamaterial tunable thermal switching absorption device based on AlCuFe and VO.

In this paper, we propose a multiband adjustable metamaterial absorption device based on a Dirac semimetal (BDS) AlCuFe and a thermally controlled phase-change material VO. The absorption device has an axially symmetric structure, resulting in polarization-independent characteristics, and when VO is in a high-temperature metal state, ultra-high absorption rates and sensitives at frequencies of = 2.89 THz, = 7.

From bench to bedside: the application of cannabidiol in glioma.

Glioma is the most common malignant tumor in central nervous system, with significant health burdens to patients. Due to the intrinsic characteristics of glioma and the lack of breakthroughs in treatment modalities, the prognosis for most patients remains poor. This results in a heavy psychological and financial load worldwide.

Multilayer stacked ultra-wideband perfect solar absorber and thermal emitter based on SiO-InAs-TiN nanofilm structure.

In this paper, a broadband solar absorber is constructed and simulated based on the finite difference time domain method (FDTD). The modeled structure of the absorber consists of cyclic stacking of five absorber cells with different periods on refractory metal W, where a single absorber cell is composed of a three-layer SiO-InAs-TiN square film. Due to the Fabry-Perot resonance and the surface plasmon resonance (SPR), an absorptivity greater than 90% within a bandwidth of 2599.

Ruthenium Complexes with NNN-Pincer Ligands for N-Methylation of Amines Using Methanol.

A series of ruthenium complexes () bearing new NNN-pincer ligands were synthesized in 58-78% yields. All of the complexes are air and moisture stable and were characterized by IR, NMR, and high-resolution mass spectra (HRMS). In addition, the structures of were confirmed by X-ray crystallographic analysis.

A kinetic model reveals the critical gating motifs for donor-substrate loading into -glycosyltransferase.

Soluble -glycosyltransferase from (ApNGT) catalyzes the glycosylation of asparagine residues, and represents one of the most encouraging biocatalysts for -glycoprotein production. Since the sugar tolerance of ApNGT is restricted to limited monosaccharides (, Glc, GlcN, Gal, Xyl, and Man), tremendous efforts are devoted to expanding the substrate scope of ApNGT enzyme engineering. However, rational design of novel NGT variants suffers from an elusive understanding of the substrate-binding process from a dynamic point of view.

Nonflammable Succinonitrile-Based Deep Eutectic Electrolyte for Intrinsically Safe High-Voltage Sodium-Ion Batteries.

Intrinsically safe sodium-ion batteries are considered as a promising candidate for large-scale energy storage systems. However, the high flammability of conventional electrolytes may pose serious safety threats and even explosions. Herein, a strategy of constructing a deep eutectic electrolyte is proposed to boost the safety and electrochemical performance of succinonitrile (SN)-based electrolyte.

A conductive and sodiophilic Ag coating layer regulating Na deposition behaviors for highly reversible sodium metal batteries.

Sodium metal batteries have attracted increasing interest recently, but suffer from severe dendrite growth caused by uneven Na plating/stripping behavior, which may result in the piercing of the membrane, with short circuiting and even cause explosions. Herein, a conductive and sodiophilic Ag coating layer is introduced to regulate Na deposition behaviors for highly reversible sodium metal batteries. Ag coated Zn foil with enhanced sodiophilicity, rapid Na transfer kinetics and superior electronic conductivity guarantee the homogenized Na ion and electric field distribution.

Boosting Multielectron Reaction Stability of Sodium Vanadium Phosphate by High-Entropy Substitution.

NaV(PO) (NVP) based on the multielectron reactions between V and V has been considered a promising cathode for sodium-ion batteries (SIBs). However, it still suffers from unsatisfactory stability, caused by the poor reversibility of the V/V redox couple and structure evolution. Herein, we propos a strategy that combines high-entropy substitution and electrolyte optimization to boost the reversible multielectron reactions of NVP.

Revealing the effect of conductive carbon materials on the sodium storage performance of sodium iron sulfate.

NaFe(SO) (NFS), as a promising cathode for sodium-ion batteries, is still plagued by its poor intrinsic conductivity. In general, hybridization with carbon materials is an effective strategy to improve the sodium storage performance of NFS. However, the role of carbon materials in the electrochemical performance of NFS cathode materials has not been thoroughly investigated.

Regulation of anion-Na coordination chemistry in electrolyte solvates for low-temperature sodium-ion batteries.

High-performance sodium storage at low temperature is urgent with the increasingly stringent demand for energy storage systems. However, the aggravated capacity loss is induced by the sluggish interfacial kinetics, which originates from the interfacial Na desolvation. Herein, all-fluorinated anions with ultrahigh electron donicity, trifluoroacetate (TFA), are introduced into the diglyme (G2)-based electrolyte for the anion-reinforced solvates in a wide temperature range.

Copper Complexes with N,N,N-Tridentate Quinolinyl Anilido-Imine Ligands: Synthesis and Their Catalytic Application in Chan-Lam Reactions.

The treatment of 2-(ArNC(H))CH-HNCHN with -BuLi and the subsequent addition of CuCl afforded the anilido-aldimine Cu(II) complexes - Cu[{2-[ArN=C(H)]CH}N(8-CHN)]Cl (Ar = 2,6-PrCH (), 2,4,6-(CH)CH (), 4-OCHCH (), 4-BrCH (), 4-ClCH ()), respectively. All the copper complexes were fully characterized by IR, EPR and HR-MS spectra. The X-ray diffraction analysis reveals that and are mononuclear complexes, and the Cu atom is sitting in a slightly square-planar geometry.

Insight into the Role of Fluoroethylene Carbonate on the Stability of Sb||Graphite Dual-Ion Batteries in Propylene Carbonate-Based Electrolyte.

Sodium dual-ion batteries (Na-DIBs) have attracted increasing attention due to their high operative voltages and low-cost raw materials. However, the practical applications of Na-DIBs are still hindered by the issues, such as low capacity and poor Coulombic efficiency, which is highly correlated with the compatibility between electrode and electrolyte but rarely investigated. Herein, fluoroethylene carbonate (FEC) is introduced into the electrolyte to regulate cation/anion solvation structure and the stability of cathode/anode-electrolyte interphase of Na-DIBs.

Investigation of the Catalytic Mechanism of a Soluble N-glycosyltransferase Allows Synthesis of N-glycans at Noncanonical Sequons.

The soluble N-glycosyltransferase from (ApNGT) can establish an N-glycosidic bond at the asparagine residue in the Asn-Xaa-Ser/Thr consensus sequon and is one of the most promising tools for N-glycoprotein production. Here, by integrating computational and experimental strategies, we revealed the molecular mechanism of the substrate recognition and following catalysis of ApNGT. These findings allowed us to pinpoint a key structural motif (DVYM) in ApNGT responsible for the peptide substrate recognition.

The Distance Between Phosphate-Based Polyanionic Compounds and Their Practical Application For Sodium-Ion Batteries.

Sodium-ion batteries (SIBs) are a viable alternative to meet the requirements of future large-scale energy storage systems due to the uniform distribution and abundant sodium resources. Among the various cathode materials for SIBs, phosphate-based polyanionic compounds exhibit excellent sodium-storage properties, such as high operation voltage, remarkable structural stability, and superior safety. However, their undesirable electronic conductivities and specific capacities limit their application in large-scale energy storage systems.

Sulfur-Rich Additive-Induced Interphases Enable Highly Stable 4.6 V LiNi Co Mn O ||graphite Pouch Cells.

High-voltage lithium-ion batteries (LIBs) have attracted great attention due to their promising high energy density. However, severe capacity degradation is witnessed, which originated from the incompatible and unstable electrolyte-electrode interphase at high voltage. Herein, a robust additive-induced sulfur-rich interphase is constructed by introducing an additive with ultrahigh S-content (34.

Research on microstructural-mechanical and shearing properties of castor seed during mechanical extraction.

Castor seed oil, as an important biomass fuel, has attracted extensive attention worldwide due to inclusive applications. Castor seed screw mechanical extraction is in fact seed shear damage and oil output. Seed shearing mechanism has been investigated with a developed tribometer.

Structure of the priming arabinosyltransferase AftA required for AG biosynthesis of .

Arabinogalactan (AG) is an essential cell wall component in mycobacterial species, including the deadly human pathogen . It plays a pivotal role in forming the rigid mycolyl-AG-peptidoglycan core for in vitro growth. AftA is a membrane-bound arabinosyltransferase and a key enzyme involved in AG biosynthesis which bridges the assembly of the arabinan chain to the galactan chain.

A Potential ABA Analog to Increase Drought Tolerance in .

Abscisic acid (ABA) plays an important role in the response of plants to drought stress. However, the chemical structure of ABA is unstable, which severely limits its application in agricultural production. Here, we report the identification of a small molecule compound of tetrazolium as an ABA analog (named SLG1) through virtual screening.

Petite Integration Factor 1 knockdown enhances gemcitabine sensitivity in pancreatic cancer cells via increasing DNA damage.

Chemoresistance is still a vital obstacle in various tumors chemotherapy. This study aimed to explore the role of Petite Integration Factor 1 (PIF1) in the sensitivity of gemcitabine response to pancreatic cancer cells. Gene Expression Profiling Interactive Analysis (GEPIA) database was employed for evaluating the level of PIF1 in pancreatic cancer tissues and normal tissues.

Anxiety among College Students Who Self-Isolated During the Omicron Variant of SARS-CoV-2 in China.

We investigated the prevalence of anxiety and its associated risk factors among college students who self-isolated for 30 days during the emergence of the Omicron variant in China. We sampled college students specializing in four academic majors by cluster sampling and conducted questionnaires separately on days 1, 10, 20, and 30 after self-isolation. Anxiety was assessed using the 7-item Generalized Anxiety Disorder Scale (GAD-7) and Self-Rating Anxiety Scale (SAS).

Bismuth nanoparticles embedded in a carbon skeleton as an anode for high power density potassium-ion batteries.

Bismuth is a promising anode for potassium-ion batteries (PIBs) due to its suitable redox potential, large theoretical capacity, and superior electronic conductivity. Herein, we report a Bi@C (Bi nanoparticles uniformly embedded in a carbon skeleton) composite anode which delivers a superior rate performance of 244.3 mA h g at 10.