Enabling Stable and Rapid Lithium/Sodium Storage by Anchoring Bimetallic Selenides with a Heterogeneous Interface on Reduced Graphene Oxide.

Transition metal selenides have emerged as attractive negative electrode candidates for rechargeable lithium-/sodium-ion batteries (LIBs/SIBs) thanks to their superior theoretical energy storage capability. Unfortunately, their practical application faces significant challenges due to low conductivity, structural degradation from volume changes, and sluggish ion diffusion kinetics. Herein, a nitrogen-doped carbon (NC) coated CuSe-CoSe heterostructure, which is embedded in reduced graphene oxide (rGO) sheets (CuSe-CoSe@NC@rGO), is synthesized.

Carbon Nanotube Intertwined Nano-Nested Heterojunction Cubes with Double Shell Layers FeSe-CoSe@NC for Efficient Lithium/Sodium Ion Storage Anode.

Transition metal selenides (TMSes) have been extensively researched as anode materials of lithium/sodium-ion batteries (LIBs/SIBs). However, the serious volume expansion, unsatisfying initial coulombic efficiency (ICE), and ion diffusion extremely limited their further application. Therefore, nanostructure design and construction of heterogeneous structures can effectively alleviate the above problems.

Global trends and research hotspots in esophageal strictures: A bibliometric study.

Background: Esophageal stricture is a prevalent condition affecting the digestive system, primarily marked by dysphagia and the obstruction of food passage through the esophagus. This narrowing of the esophageal lumen can significantly impact a person's ability to eat and drink comfortably, often leading to a decrease in nutritional intake and quality of life.

Aim: To explore the current research status and future trends of esophageal stricture through bibliometric analysis.

Defect engineering constructs two-dimensional metal sulfoselenide with expanded interlayers for fast and efficient sodium ion storage.

Leveraging abundant natural reserves and lower cost profiles, sodium-ion batteries (SIBs) are poised to supersede lithium-ion batteries (LIBs) within the domain of large-scale energy storage systems. Many achievements have been made in improving the properties of anodes in SIBs from the aspects of nanostructure and surface modification. Recently, the incorporation of anionic species into metal sulfides via defect engineering has emerged as an innovative strategy to boost sodium storage capabilities.

Accelerated Ion-Electron Transport in Bi-Heterostructures Constructed Based on Ohmic Contacts for Efficient Bi-Directional Catalysis of Lithium-Sulfur Batteries.

Although lithium-sulfur batteries have satisfactory theoretical specific capacity and energy density, they are difficult to further commercialize due to the shuttle effect of soluble polysulfides and slow sulfur oxidation kinetics. Based on this, in this work, the catalyst MXene-VS-SnS (MVS), a dual heterostructured catalyst with ohmic contacts, is prepared by a one-step hydrothermal method and electrostatic self-adsorption for lithium-sulfur battery cathode materials. Experimental and theoretical results show that the ohmic contact induces spontaneous charge rearrangement, resulting in the formation of a fast charge transfer pathway at the MVS heterojunction interface, which helps to reduce the energy barrier for polysulfide reduction and LiS oxidation during the discharge/charge process.

Herbicidal Sorbicillinoid Analogs Cause Lignin Accumulation in TE-65L.

Five new sorbicillinoid derivatives, including (±)-aspersorbicillin A [(±)-], a pair of enantiomers at C-9, and aspersorbicillins B-D (-), together with two known analogs ( and ) were isolated from the endophytic fungus TE-65L. Their structures including absolute configurations were determined by detailed spectroscopic analyses and electronic circular dichroism calculations. The herbicidal activity of sorbicillinoids on the germ and radicle elongation of various weed types was reported for the first time.

[Effect of Pterostilbene Regulating Nuclear Factor E2-Related Factor 2 on Apoptosis of Colon Cancer Cells ].

Objective To investigate the effects of pterostilbene on human colon cancer LoVo cells and study the regulatory mechanism of nuclear factor E2-related factor 2 (Nrf2) in the process of pterostilbene acting on LoVo cells. Methods LoVo cells were treated with different concentrations (5,10,20,40,60,80,100 μmol/L) of pterostilbene.Cell viability,migration,invasion,and apoptosis were examined by CCK-8,scratch,Transwell,and TUNEL assays,respectively.

Enhancing Rapid Li/Na Storage Performance via Interface Engineering of Reduced Graphene Oxide-Wrapped Bimetallic Sulfide Nanocages.

Transition-metal sulfide is considered to be an admirable transformational electrode material due to low cost, large specific capacity, and good reversibility in lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs). Herein, the reduced graphene oxide-wrapped open bimetallic sulfide (NiS-CoS@rGO) nanocage, derived from nickel-cobalt Prussian blue, was obtained by two-step calcination. There are luxuriant pore structures in the nanocage composite with a specific surface area of 85.

Regulate the Solvation Structure and Interface by Nitrate in Phosphate-Based Electrolytes for 4.5 V-Class Ni-Rich Batteries.

Phosphate-based electrolyte propels the advanced battery system with high safety. Unfortunately, restricted by poor electrochemical stability, it is difficult to be compatible with advanced lithium metal anodes and Ni-rich cathodes. To alleviate these issues, the study has developed a phosphate-based localized high-concentration electrolyte with a nitrate-driven solvation structure, and the nitrate-derived N-rich inorganic interface shows excellent performance in stabilizing the LiNiCoMnO (NCM811) cathode interface and modulating the lithium deposition morphology on the anode.

Localized High-Concentration Sulfone Electrolytes with High-Voltage Stability and Flame Retardancy for Ni-Rich Lithium Metal Batteries.

The localized high-concentration electrolyte (LHCE) propels the advanced high-voltage battery system. Sulfone-based LHCE is a transformative direction compatible with high energy density and high safety. In this work, the application of lithium bis(trifluoromethanesulphonyl)imide and lithium bis(fluorosulfonyl)imide (LiFSI) in the LHCE system constructed from sulfolane and 1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether (TTE) is investigated.

Interface Engineering of MOF-Derived CoO@CNT and CoS@CNT Anodes with Long Cycle Life and High-Rate Properties in Lithium/Sodium-Ion Batteries.

Metal-organic framework materials can be converted into carbon-based nanoporous materials by pyrolysis, which have a wide range of applications in energy storage. Here, we design special interface engineering to combine the carbon skeleton and nitrogen-doped carbon nanotubes (CNTs) with the transition metal compounds (TMCs) well, which mitigates the bulk effect of the TMCs and improves the conductivity of the electrodes. Zeolitic imidazolate framework-67 is used as a precursor to form a carbon skeleton and a large number of nitrogen-doped CNTs by pyrolysis followed by the in situ formation of CoO and CoS, and finally, CoO@CNTs and CoS@CNTs are synthesized.

Phytotoxic and Antimicrobial Terrein Derivatives and Butenolides Isolated from the Endophytic Fungus HT5.

Two new terrein derivatives, aspergilethers A and B ( and ), two known analogues ( and ), and three known butenolides (-) were isolated from the endophyte HT5. Their structures were determined by spectroscopic analysis and ECD and NMR calculations. Interestingly, and had unpresented medium aliphatic side chains in terrein derivatives, with different absolute configurations at C-7, which was very scarce.

Contributing to the Revolution of Electrolyte Systems via In Situ Polymerization at Different Scales: A Review.

Solid-state batteries have become the most anticipated option for compatibility with high-energy density and safety. In situ polymerization, a novel strategy for the construction of solid-state systems, has extended its application from solid polymer electrolyte systems to other solid-state systems. This review summarizes the application of in situ polymerization strategies in solid-state batteries, which covers the construction of polymer, the formation of the electrolyte system, and the design of the full cell.

Metabolomic and regular analysis reveal phytotoxic mechanisms of sterigmatocystin in Amaranthus retroflexus L.

Sterigmatocystin (STE) is a common hepatotoxic and nephrotoxic contaminant in cereals, however, its phytotoxicity and mechanisms are poorly understood. Here, the phytotoxic mechanisms of STE were investigated via the metabolomics of Amaranthus retroflexus L. A total of 140 and 113 differential metabolites were detected in the leaves and stems, respectively, among which amino acids, lipids, and phenolic compounds were significantly perturbed.

2,4-Decadienoic Acid, a Novel Anti-Oomycete Agent from Coculture of Bacillus subtilis and Trichoderma asperellum.

Phytophthora nicotianae is an oomycete pathogen of global significance threatening many important crops. It is mainly controlled by chemosynthetic fungicides, which endangers ecosystem and human health; thus, there is an urgent need to explore alternatives for these fungicides. In this study, a new anti-oomycete aliphatic compound, 2,4decadienoic acid (DDA), was obtained through coculture of Bacillus subtilis Tpb55 and Trichoderma asperellum HG1.

Phytotoxic Azaphilones From the Mangrove-Derived Fungus HY5.

Mangrove is a unique marine ecosystem growing in the intertidal zone of tropical and subtropical coast, with the characteristics of hypoxia tolerance, high salinity, and high humidity. In order to discover novel leading compounds with potent phytotoxicity, seven pairs of azaphilones isomers, isochromophilone H (/), sclerotiorins A and B (/ and ), ochlephilone (/), isochromophilone IV (/), isochromophilone J (/), and isochromophilone I (/), were isolated from the culture broth of the mangrove-derived fungus, the HY5, by various chromatographic methods. Among them, , , , , , , and were new compounds.

Decalintetracids A and B, two pairs of unusual 3-decalinoyltetramic acid derivatives with phytotoxicity from Fusarium equiseti D39.

The filamentous fungi Fusarium sp. are well-known for their ability to produce abundant specialised metabolites with attractive chemical structures and bioactivities. In this study, chemical analyses of the endophyte F.

Antifungal Secondary Metabolites Produced by the Fungal Endophytes: Chemical Diversity and Potential Use in the Development of Biopesticides.

Plant diseases caused by phytopathogenic fungi can lead to huge losses in the agricultural fields and therefore remain a continuous threat to the global food security. Chemical-based fungicides contributed significantly in securing crop production. However, indiscriminate application of fungicides has led to increased chemical resistance and potential risks to human health and environment.

Herbicidal and Antifungal Xanthone Derivatives from the Alga-Derived Fungus D5.

Fungi have been proved as promising and prolific sources of functional secondary metabolites with potent agricultural applications. In this study, 14 xanthone derivatives (-), including six new ones, versicones I-N (, , ), and a biogenetically related derivative (), were isolated from the alga-derived fungus D5. Their structures were elucidated by comprehensive spectroscopic methods.

Enhanced Mechanical Properties of Multiscale Carbon Fiber/Epoxy Unidirectional Composites with Different Dimensional Carbon Nanofillers.

Ammonia modified graphene-carbon nanotubes/continuous carbon fiber reinforced epoxy unidirectional multiscale composites (AMGNS-MWCNT/CFEP) were prepared by adding ammonia modified graphene and carbon nanotubes to an epoxy matrix to reduce agglomeration of carbon nanofillers in the epoxy matrix and improve composites properties. Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), and universal testing machines were used to characterize the properties of carbon nanofillers, AMGNS-MWCNT/epoxy nanocomposites, and AMGNS-MWCNT/CFEP unidirectional composites. When the AMGNS-MWCNT content was 1.

Antifungal Nafuredin and Epithiodiketopiperazine Derivatives From the Mangrove-Derived Fungus D13.

A new polyketide derivative, nafuredin C (), a novel heterocyclic dipeptide, trichodermamide G (), together with four known biogenetically related compounds nafuredin A (), trichodermamide A (), aspergillazin A (), and peniisocoumarin H (), were isolated from the mangrove-derived fungus D13. Their structures, including their absolute configurations, were determined by spectroscopic analysis and time-dependent density functional theory-electronic circular dichroism (ECD) calculations. Trichodermamide G was found to be a novel epithiodiketopiperazine derivative with an unprecedented cyclic system containing a sulfur bridge, and nafuredin C represented the third nafuredin derivative of these homologous compounds.

Terpenoids From the Coral-Derived Fungus (XS-20090075) Induced by Chemical Epigenetic Manipulation.

The soft coral-derived fungus (XS-20090075) was found to be a potential strain to produce substantial new compounds in our previous study. In order to explore its potential to produce more metabolites, chemical epigenetic manipulation was used on this fungus to wake its sleeping genes, leading to the significant changes of its secondary metabolites by using a histone deacetylase (HDAC) inhibitor. The most obvious difference was the original main products harziane diterpenoids were changed into cyclonerane sesquiterpenoids.

Naphthalene derivatives and halogenate quinoline from the coral-derived fungus (XS-20090075) through OSMAC approach.

OSMAC approach was performed on the soft coral-derived fungus (XS-20090075) leading to the significant changes of its secondary metabolites by using two different cultures. A new naphthalene derivative, trichoharzin B () and a new natural product, methyl-trichoharzin () were isolated by using rice medium. Whereas, a new natural product, ethyl 2-bromo-4-chloroquinoline-3-carboxylate () was obtained by using Czapek's medium.