Simultaneous High Current Density and Selective Electrocatalytic CO-to-CH through Intermediate Balancing.

The electrochemical reduction of CO to CH is promising for carbon neutrality and renewable energy storage but confronts low CH selectivity, especially at high current densities. The key challenge lies in promoting *CO intermediate and *H coupling while minimizing side reactions including C-C coupling and H-H coupling, which is particularly difficult at high current density due to abundant intermediates. Here we report a cooperative strategy to address this challenge using Cu-based catalysts comprising Cu-N coordination polymer and CuO component that can simultaneously manage the key intermediates *CO and *H.

Exclusive Generation of Single-Atom Sulfur for Ultrahigh Quality Monolayer MoS Growth.

Preparation of high-quality two-dimensional (2D) transition metal dichalcogenides (TMDCs) is the precondition for realizing their applications. However, the synthesized 2D TMDCs (e.g.

Functionalized nanofibers mat prepared through thiol-ene "click" reaction as solid phase extraction adsorbent for simultaneous detection of florfenicol and paracetamol residues in milk.

Due to the significant differences in physical and chemical properties of various veterinary drugs, sample pretreatment is still the bottleneck of simultaneous detection of multiple veterinary drug residues. In order to achieve quantitative determination of two different types of veterinary drug residues (florfenicol and paracetamol) in milk, 1-allyl-3-methylimidazolium chloride (AmimCl) functionalized nanofibers mat (AmimCl-NFsM) was prepared through thiol-ene "click" reaction and applied as a new solid phase extraction adsorbent. The preparation parameters were systematically investigated and optimized through dynamic adsorption experiments.

Machine learning-enabled attapulgite/polyimide nanofiber composite aerogels-based colorimetric sensor array for real-time monitoring of balsa fish freshness.

This paper presents the development and application of attapulgite/polyimide nanofiber composite aerogels (ATP/PI NFAs) integrated with a range of acid-base indicators, fabricated using electrospinning and freeze-drying technologies. A detailed characterization of the ATP/PI NFAs revealed a 3D multi-level pore structure that enhanced the mass transfer of target gas molecules and their interaction with probe molecules. Utilizing machine learning approaches, we designed an ATP/PI NFAs-based colorimetric sensor array capable of real-time evaluation of balsa fish freshness.

Hemostatic and Ultrasound-Controlled Bactericidal Silk Fibroin Hydrogel via Integrating a Perfluorocarbon Nanoemulsion.

Excessive blood loss and infections are the prominent risks accounting for mortality and disability associated with acute wounds. Consequently, wound dressings should encompass adequate adhesive, hemostatic, and bactericidal attributes, yet their development remains challenging. This investigation presented the benefits of incorporating a perfluorocarbon nanoemulsion (PPP NE) into a silk-fibroin (SF)-based hydrogel.

Ampere-Level Current Density CO Reduction with High C Selectivity on La(OH)-Modified Cu Catalysts.

The carbon dioxide reduction reaction (CORR) driven by electricity can transform CO into high-value multi-carbon (C) products. Copper (Cu)-based catalysts are efficient but suffer from low C selectivity at high current densities. Here La(OH) in Cu catalyst is introduced to modify its electronic structure towards efficient CORR to C products at ampere-level current densities.

Ligustilide Inhibits Tumor Angiogenesis by Downregulating VEGFA Secretion from Cancer-Associated Fibroblasts in Prostate Cancer via TLR4.

CAFs secrete VEGFA in the tumor microenvironment to induce angiogenesis and promote tumor growth. The downregulation of VEGFA secretion from CAFs helps block angiogenesis and exerts an anti-tumor effect. In vivo experiments showed that the angiogenesis of the tumor-bearing mice in the ligustilide group was significantly reduced.