An albumin fluorescent sensor array discriminates ochratoxins.

A sensor array that can distinguish ochratoxins based on the fluorescence of the albumin-ochratoxin complex has been developed. This sensor array enabled the identification of ochratoxins and their mixtures in real food samples.

Sodium-Ion Storage in NaVMn(PO)/C Porous Nanorods Electrode.

NaVMn(PO) (NVMP) is a prospective cathode for sodium-ion batteries (SIBs) due to its low cost and extraordinary structural stability. However, poor conductivity restricts the electrochemical performance of NVMP, which limits its development and application. Herein, carbon-encapsulated NVMP porous nanorods are prepared via a convenient electrospinning method.

Structure-Induced Energetic Coordination Compounds as Additives for Laser Initiation Primary Explosives.

Laser ignition of primary explosives presents more reliable alternative to traditional electrical initiation methods. However, the commercial initiator lead azide (LA) requires a high-power density laser to detonate, with the minimum laser initiation energy (E) of 2402 mJ. Currently, the laser-ignitable metal complex-based igniters still suffer from weak detonation capabilities and high E values.

Synthesis of 3-Substituted Indoles by Yonemitsu Three-Component Reactions Accelerated in Microdroplet/Thin Film.

3-Substituted indoles are an important framework of many drugs, agricultural chemicals, functional materials, and bioactive compounds. Malononitrile-based three-component Yonemitsu reactions are attractive choices for the synthesis of 3-substituted indole derivatives but suffered from long reaction time and harsh conditions (e.g.

Hollow Mo/MoS Nanoreactors with Tunable Built-in Electric Fields for Sustainable Hydrogen Production.

Constructing built-in electric field (BIEF) in heterojunction catalyst is an effective way to optimize adsorption/desorption of reaction intermediates, while its precise tailor to achieve efficient bifunctional electrocatalysis remains great challenge. Herein, the hollow Mo/MoS nanoreactors with tunable BIEFs are elaborately prepared to simultaneously promote hydrogen evolution reaction (HER) and urea oxidation reaction (UOR) for sustainable hydrogen production. The BIEF induced by sulfur vacancies can be modulated from 0.

Rhodium-Catalyzed Enantioselective Hydrosilylation of 1,1-Disubstituted Enamides.

Catalytic hydrosilylation of 1,1-disubstituted enamides is one of the most challenging and synthetically useful processes in organosilicon chemistry and asymmetric catalysis. Herein, we report a rhodium-catalyzed enantioselective hydrosilylation of α-arylenamides with substituted hydrosilanes with the aid of chiral P-ligand, including newly developed spirophosphite ligands, giving various chiral β-silylated amides in excellent yields with good to excellent enantioselectivities (98:2 er after recrystallization). In addition, chiral β-silylated amines can be obtained by further functionalization of the hydrosilylation product.

Highly stable 3D cellulose micro-rolls support TiO for efficient photocatalysis degradation experiment under weak light conditions.

Immobilization of nanometer-scale photocatalysts on a 3D polymeric substrate could play several complementary roles in photocatalysis, such as providing mechanical stability, facilitating easy recycling after usage, enhancing adsorption capability, and improving light harvesting properties through multiple reflections. To achieve stable and efficient photocatalysis under weak light conditions, 3D cellulose micro-rolls were introduced into the photocatalytic composites. Here, the formation of micro-rolls is attributed to the presence of titania nanoparticles, which generate uneven shrinkage stress in cellulose during the freeze-drying process, thereby inducing the cellulose to curl up.

Bimetallic sulfides based hybrid anodes are constructed for high-performance lithium ion batteries.

Transition metal sulfides (TMSs) are considered as one of the most promising anode materials for lithium-ion batteries (LIBs) in virtue of their high theoretical specific capacity, low cost and environmental friendliness. However, the intrinsic poor electron/ion transport, large volume change and the shuttle effect of polysulfides hinder their achievement of superb rate capability and cycle performance. Compared with the monometallic sulfides, bimetallic sulfides have superior electron transport capability and higher electrochemical activity.

Titanium-Catalyzed Reaction of Silacyclobutanes with Alkenes: Mimicking the Reactivity and Reversing the Selectivity Towards Late Transition Metals.

Transition metal-catalyzed ring opening and expansion reactions of silacyclobutanes (SCBs) constitute an atom- and step-economical strategy to construct value-added silicon-containing chemicals. Despite extensive studies, the reaction of SCBs with simple alkenes has only one precedent. Moreover, most reported reactions of SCBs use late transition metals (Pd, Ni, Rh) as catalysts.

Pectin/zinc alginate films containing anthocyanins from dragon fruit peel as intelligent pH indicators for shrimp freshness monitor.

The novel incorporation of dragon fruit peel extract (DE), rich in anthocyanins, Zn (from Zinc Alginate) and pectin was applied to create active and intelligent food packaging composite films. These films were characterized for their microstructure and properties. Various levels of anthocyanin extracts (1 %, 3 %, and 5 %) were evaluated for their impact on the films' physical and functional properties, incorporating microstructure, mechanical strength, barrier properties, pH sensitivity, and bacteriostatic effectiveness.

In situ evolved high-valence Co active sites enable highly efficient and stable chlorine evolution reaction.

The chlor-alkali process is crucial in the modern chemical industry, yet it is highly energy-intensive, consuming about 4 % of global electricity due to the significant overpotential and low selectivity of existing chlorine evolution reaction (CER) electrocatalysts. Although advanced electrocatalysts have reduced the energy demands of the chlor-alkali process, they typically incorporate precious metals. Here, we introduce a novel precious metal-free electrocatalyst, (CoZn)VO@C, with a hollow nanocube structure that exhibits outstanding CER performance.

Single femtosecond laser pulse-induced valence state conversion in BaFCl: Sm nanocrystals for low-threshold optical storage.

Femtosecond laser-induced valence state conversion (VC) in solid materials has attracted significant research attention due to its potential application in ultra-high density optical storage, boasting advantages such as ultra-high recording speed, easy reading, and high signal-to-noise ratio. However, identifying appropriate materials and technological solutions conducive to efficient single-laser-shot recording remains a pivotal challenge for practical applications. In this work, we report single femtosecond laser pulse-induced VC in BaFCl: Sm nanocrystals utilizing a 4F-configuration optical imaging system comprising two-dimensional scan galvo mirrors.

Photo-Induced Synthesis of Ytterbium and Manganese-Doped CsPbCl Nanocrystals for Visible to Near-Infrared Photoluminescence with Negative Thermal Quenching.

Rare-earth-doped all-inorganic perovskite applications for near-infrared (NIR) emission are crucial for the construction of the next generation of intelligent lighting sources. However, the preparation of rare-earth-doped all-inorganic perovskite is complex, and difficult to control, and the issue of thermal quenching poses significant challenges to its practical application. Here, in order to address these issues, a convenient photo-induced synthesis method for CsPbCl:Mn/Yb nanocrystals (NCs) is proposed by decomposing carbon tetrachloride with 365 nm light to provide chloride ions and regulate the formation of perovskite at room temperature.

Crystalline potassium boryl dithiolate and diselenolate.

Both the B-S and S-S bonds of 1,2,4,3,5-trithiadiborolane 1 could be cleaved by potassium graphite (KC) to give the first isolable boryl dithiolate DmpB(SK)3, whereas the reduction of 1,2,4-triselena-3,5-diborolane 2 with KC afforded the boryl diselenolate DmpB(SeK)(SeSeK) 4, showcasing the unprecedented structural authentication of ligand substituted diselenolate.

Ligand-enabled Ni-catalysed dicarbofunctionalisation of alkenes with diverse native functional groups.

The transition metal-catalysed dicarbofunctionalisation of unactivated alkenes normally requires exogenous strong coordinated directing groups, thus reducing the overall reaction efficiency. Here, we report a ligand-enabled Ni(II)-catalysed dicarbofunctionalisation of unactivated alkenes with aryl/alkenyl boronic acids and alkyl halides as the coupling partners with a diverse range of native functional groups as the directing group. This dicarbofunctionalisation protocol provides an efficient and direct route towards vicinal 1,2-disubstituted alkanes using primary, secondary, tertiary amides, sulfonamides, as well as secondary and tertiary amines under redox-neutral conditions that are challenging to access through conventional methods.

Native corncob-derived biosorbent with grafted 1,3,4-thiadiazole for enhanced adsorption of palladium in metallurgical wastewater.

The reuse of agricultural waste brings significant benefits but still faces a multitude of challenges. In this work, novel precious metal sorbents were constructed by grafting 1,3,4-thiadiazole-2-thiol (MTD) and 2,5-dithiadiazole-1,3,4-thiadiazole (DMTD) onto native corncob, which could rapidly and selectively recover palladium (Pd) from metallurgical wastewater. The characterization of the sorbents by powder X-ray diffraction indicated that introducing MTD or DMTD on native corncob did not alter the crystallinity and inherent structural framework.

Magnetic Molecularly Imprinted Polymer Combined with Solid-Phase Extraction for Purification of Lignans.

Molecularly imprinted polymers (MIPs) can specifically recognize template molecules in solution with imprinted cavities. Due to their capacity for scalable production, they can be used to isolate target products from natural products for industrial production in the fields of pharmaceuticals and food. In this study, magnetic single-template molecularly imprinted polymers (St-MIPs) instead of magnetic multi-template molecularly imprinted polymers (Mt-MIPs) were prepared by surface imprinting using Schizandrol A as a template molecule and deep eutectic solvent (DES) as a functional monomer, combined with solid-phase extraction (SPE) for the adsorption and separation of Schizandrol A, Schisantherin A, Schizandrin A, and Schizandrin B from (Turcz.

Unraveling the Multifunctional Mechanism of Fluoroethylene Carbonate in Enhancing High-Performance Room-Temperature Sodium-Sulfur Batteries.

Room-temperature sodium-sulfur (RT Na-S) batteries has attracted growing attentions in large-scale energy storage technology, while the serious shuttle effect and interface side reaction limit its practical application. Despite fluoroethylene carbonate (FEC) has been widely used as an electrolyte additive or co-solvent to facilitate the optimization of electrode-electrolyte interphase in RT Na-S batteries, its crucial influence and mechanism have not been clearly understood. Herein, we deeply reveal the two-steps cathode-electrolyte interphase (CEI) formation by using FEC as the exclusive electrolyte solvent.

Reconfiguring FeN sites through axial FeO clusters to enhance d-orbital electronic delocalization for improved oxygen reduction reaction.

Effectively controlling the electronic configuration of metal sites within single-atom catalysts (SACs) is essential for improving their oxygen reduction reaction (ORR) performance. Here, we construct hybrid catalysts featuring Fe single atoms and FeO clusters (Fe SACs/FeO@NHPC) to realize highly efficient ORR. Specifically, the Fe SACs/FeO@NHPC delivers a remarkable half-wave potential (E) of 0.

Computational study on two-dimensional transition metal borides for enhanced lithium-sulfur battery performance: Insights on anchoring, catalytic activity, and solvation effects.

The controlled modulation of surface functional groups, in conjunction with the intrinsic structural characteristics of MXene materials, shows great potential in alleviating the shuttle effect and improving the sluggish reaction kinetics in lithium-sulfur batteries (LSBs). This study delves into the impact of surface functional groups (T = O, S, F, and Cl) on VB MBene concerning sulfur immobilization and kinetic catalytic properties through meticulous first-principles calculations. The results reveal that the establishment of T-Li bonds within VBT (T = O, S, F, and Cl) enhances the adsorption of lithium polysulfides (LiPSs).