Construction of a InO/ultrathin g-CN S-scheme heterojunction for sensitive photoelectrochemical aptasensing of diazinon.

A single semiconductor-based photoelectrochemical (PEC) aptasensor usually faces a challenge of low sensitivity due to poor solar energy utilization and a high photogenerated carrier recombination rate. Herein, an ultra-thin carbon nitride nanosheet-coated InO (InO/CNS) S-type heterojunction-based PEC aptasensor has been established to achieve highly sensitive detection of diazinon (DZN) pesticide in water environment. Construction of S-type heterojunction induces a band shift and an electric field effect, enhancing light utilization and accelerating directional transmission of carriers, leading to outstanding PEC performance.

METS-IR/HOMA-IR and MAFLD in U.S. adults: dose-response correlation and the effect mediated by physical activity.

Objectives: Metabolic dysfunction-associated fatty liver disease (MAFLD), a globally prevalent disease, is closely linked to insulin resistance (IR). Physical activity (PA) is closely linked to both MAFLD and IR. We aim to explore the dose-response relationship between metabolic score for IR (METS-IR)/homeostasis model assessment of IR (HOMA-IR) and MAFLD, and investigate the relationship between PA, IR and MAFLD.

Zinc hexacyanoferrate/g-CN nanocomposites with enhanced photothermal and photodynamic properties for rapid sterilization and wound healing.

Photoactivated therapy has gradually emerged as a promising and rapid method for combating bacteria, aimed at overcoming the emergence of drug-resistant strains resulting from the inappropriate use of antibiotics and the subsequent health risks. In this work, we report the facile fabrication of Zn[Fe(CN)]/g-CN nanocomposites (denoted as ZHF/g-CN) through the in-situ loading of zinc hexacyanoferrate nanospheres onto two-dimensional g-CN sheets using a simple metal-organic frameworks construction method. The ZHF/g-CN nanocomposite exhibits enhanced antibacterial activity through the synergistic combination of the excellent photothermal properties of ZHF and the photodynamic capabilities of g-CN.

Design of Self-Integrating Transient Surface Current Density Sensor Integrated Fiber Transmission Link.

The transient surface current density reflects the external coupling of the electromagnetic pulse (EMP) to the tested device. In this paper, the generation mechanism and measurement principle of conductor surface current density are introduced, and the surface current density distribution irradiated by EMP on a typical aircraft structure is simulated and analyzed. The traditional surface current density is usually measured by B-dot antenna, but its output signal is the differential of the measured signal, so additional integrators or numerical integration of the measured data are required.

Adjacent Mn site boosts photocatalytic hydrogen evolution of MnCdS solid solution through a dual-metal-site design.

CdS has emerged as a possible candidate for photocatalytic hydrogen generation. However, further improvement in the performance of the Cd metal site is challenging due to limited optimization space. To solve this limitation, in this work, the Mn-Cd dual-metal photocatalyst was synthesized by a one-step solvothermal method, and the effects of different proportions of bimetals on hydrogen production activity were systematically studied.

Electronic and energy level structural engineering of graphitic carbon nitride nanotubes with B and S co-doping for photocatalytic hydrogen evolution.

The ideal photocatalyst used for photocatalytic water splitting requires strong light absorption, fast charge separation/transfer ability and abundant active sites. Heteroatom doping offers a promising and rational approach to optimize the photocatalytic activity. However, achieving high photocatalytic performance remains challenging if just relying on single-element doping.

Prediction of MAFLD and NAFLD using different screening indexes: A cross-sectional study in U.S. adults.

Introduction: Metabolic dysfunction-associated fatty liver disease (MAFLD), formerly known as non-alcoholic fatty liver disease (NAFLD), has become the most common chronic liver disease worldwide. We aimed to explore the gender-related association between nine indexes (BMI/WC/VAI/LAP/WHtR/TyG/TyG-BMI/TyG-WC/TyG-WHtR) and MAFLD/NAFLD and examine their diagnostic utility for these conditions.

Methods: Eligible participants were screened from the 2017-2018 cycle data of National Health and Nutrition Examination Survey (NHANES).

Engineering surface bromination in carbon nitride for efficient CO photoconversion to CH.

The direct conversion of CO into reusable CH fuel by solar energy can effectively solve the problems of energy crisis and carbon emissions. However, the challenge of photocatalytic CO reduction to produce CH is still low conversion efficiency and poor selectivity. Here, surface brominated carbon nitride (named CNBr) is fabricated for stable and efficient photocatalytic CO reduction to produce CH with a rate of 16.

Characterization of a novel zebrafish model of SPEG-related centronuclear myopathy.

Centronuclear myopathy (CNM) is a congenital neuromuscular disorder caused by pathogenic variation in genes associated with membrane trafficking and excitation-contraction coupling (ECC). Bi-allelic autosomal-recessive mutations in striated muscle enriched protein kinase (SPEG) account for a subset of CNM patients. Previous research has been limited by the perinatal lethality of constitutive Speg knockout mice.

Enhanced photoelectrochemical aptasensing triggered by nitrogen deficiency and cyano group simultaneously engineered 2D carbon nitride for sensitively monitoring atrazine.

Determination of atrazine (ATZ) residues in aquatic environment has important theoretical and practical significance for protecting the ecological environment and ensuring human health. A photoelectrochemical (PEC) aptasensing based on nitrogen deficiency and cyano group simultaneously engineered two-dimensional (2D) carbon nitride (named as DCN) has been proposed for sensitively detecting ATZ. The introduction of nitrogen deficiency can narrow band gap of DCN, leading to positive position of intermediate electronic state, and improving the absorption of visible light.

Crystal phase engineering boosted photo-electrochemical kinetics of CoSe for oxygen evolution catalysis.

Crystal phase is an important parameter that can determine the electronic structure and catalytic properties of catalysts. In this work, we report the crystal phase dependent photo- and electrocatalytic oxygen evolution reaction (OER) performance of CoSe. In electrocatalytic reaction, we firstly found that CoSe with orthorhombic phase (o-CoSe) showed a higher OER performance than that of CoSe with cubic phase (c-CoSe).

Thickness measurement method for self-supporting film with double chromatic confocal probes.

With the randomness and immeasurability properties of zero point, the conventional self-supporting film thickness measurement model must calibrate the distance between two chromatic confocal sensors using a standard part whose thickness needs to be measured by other methods in advance. The measurement performance is easily disturbed by the calibration process, and by the accuracy of sample thickness or its uniformity. In order to overcome these limitations, a new thickness measurement model was developed by adding an auxiliary transparent film in the initial position of the dispersion field.

Ultrathin structure of oxygen doped carbon nitride for efficient COphotocatalytic reduction.

Photocatalytic conversion of carbon dioxide into fuels and valuable chemicals is a promising method for carbon neutralization and solving environmental problems. Through a simple thermal-oxidative exfoliation method, the O element was doped while exfoliated bulk g-CNinto ultrathin structure g-CN. Benefitting from the ultrathin structure of g-CN, the larger surface area and shorter electrons migration distance effectively improve the COreduction efficiency.

Unique Dual-Sites Boosting Overall CO Photoconversion by Hierarchical Electron Harvesters.

Low selectivity and poor activity of photocatalytic CO reduction process are usually limiting factors for its applicability. Herein, a hierarchical electron harvesting system is designed on CoNiP hollow nano-millefeuille (CoNiP NH), which enables the charge enrichment on CoNi dual active sites and selective conversion of CO to CH . The CoNiP serves as an electron harvester and photonic "black hole" accelerating the kinetics for CO -catalyzed reactions.

Adaptive modal decomposition based overlapping-peaks extraction for thickness measurement in chromatic confocal microscopy.

Accurate overlapping-peaks extraction plays a critical role in chromatic confocal thickness measurement of ultra-thin transparent film. However, the current algorithms usually appear as a perceptible extraction error resulting from the disturbing influence among peaks in the process of fitting the spectral axial response signal (sARS) of the two measuring surfaces. In this paper, we propose an adaptive modal decomposition method to extract multi peaks for the ultra-thin materials.

An All-Organic D-A System for Visible-Light-Driven Overall Water Splitting.

Direct water splitting over photocatalysts is a prospective strategy to convert solar energy into hydrogen energy. Nevertheless, because of the undesirable electron accumulation at the surface, the overall water-splitting efficiency is seriously restricted by the poor charge separation/transfer ability. Here, an all-organic donor-acceptor (D-A) system through crafting carbon rings units-conjugated tubular graphitic carbon nitride (C-TCN) is proposed.

Pathogenic characterization of Aeromonas salmonicida subsp. masoucida turbot isolate from China.

Aeromonas salmonicida is a gram-negative bacterium that is the causative agent of furunculosis. An A. salmonicida strain was isolated from diseased turbot (Scophthalmus maximus) with the sign of furunculosis from North China.

Insights into wild-type dynamin 2 and the consequences of DNM2 mutations from transgenic zebrafish.

Dynamin 2 (DNM2) encodes a ubiquitously expressed large GTPase with membrane fission capabilities that participates in the endocytosis of clathrin-coated vesicles. Heterozygous mutations in DNM2 are associated with two distinct neuromuscular disorders, Charcot-Marie-Tooth disease (CMT) and autosomal dominant centronuclear myopathy (CNM). Despite extensive investigations in cell culture, the role of dynamin 2 in normal muscle development is poorly understood and the consequences of DNM2 mutations at the molecular level in vivo are not known.

Nitrogen-rich graphitic carbon nitride nanotubes for photocatalytic hydrogen evolution with simultaneous contaminant degradation.

Graphitic carbon nitride (g-CN) has aroused great concern since it applied to the photocatalytic process. However, the inherent shortcomings of bulk g-CN, such as small active surface area, low separation efficiency of photogenerated carriers, sluggish charge transport process, etc., result in low-level photocatalytic performance.

Enhanced photoelectrochemical sensing performance of graphitic carbon nitride by nitrogen vacancies engineering.

Ciprofloxacin (CIP) as a typical antibiotic is widely used to produce antimicrobial drugs. Determination of CIP has raised extensive concern due to its possible toxic effects on human health. Here, a simple photoelectrochemical (PEC) sensor for detecting CIP has been developed by using the nitrogen-deficient graphitic carbon nitride (ND-g-CN) as a PEC active material.

Graphene quantum dots modified flower like BiWO for enhanced photocatalytic nitrogen fixation.

Graphene quantum dots modified BiWO (GQD/BiWO) composites is applied to photocatalytic N fixation. The as-prepared GQD/BiWO samples showed considerable increase in photocatalytic nitrogen fixation compared to the pure BiWO and GQD. The results revealed that GQD uniformly placed on the surface of BiWO and tight junction between the two samples helped to boost the photocatalytic activity.

Accelerating Photogenerated Charge Kinetics via the Synergetic Utilization of 2D Semiconducting Structural Advantages and Noble-Metal-Free Schottky Junction Effect.

Although photocatalysis is one of the most promising technologies for environmental and energy issues, the irreconcilable contradiction between the absorption of the visible light and the strong redox capability of the photocatalyst and the low photocatalytic reaction kinetics result in the poor efficiency. Here, a composite photocatalyst is reported with high redox capability and accelerated reaction kinetics synergistically utilizing 2D semiconducting structural advantages and the noble-metal-free Schottky junction effect. The 2D structure can not only increase the bandgap of the photocatalyst but also improve the transfer and separation of the photogenerated charge carriers.