One-step fabrication of dual-network cellulose-based hydrogel sensors with high flexibility and conductivity under ZnCl solvent method for flexible sensing properties.

Flexible smart sensing materials are gaining tremendous momentum in wearable and bionic smart electronics. To satisfy the growing demand for sustainability and eco-friendliness, biomass-based hydrogel sensors for green and biologically safe wearable sensors have attracted significant attention. In this work, we have prepared MCC/PAA/AgNWs/CNTs hydrogel sensors with excellent conductive sensing properties by a simple physical blending method.

Unlocking new possibilities in ionic thermoelectric materials: a machine learning perspective.

The high thermopower of ionic thermoelectric (-TE) materials holds promise for miniaturized waste-heat recovery devices and thermal sensors. However, progress is hampered by laborious trial-and-error experimentations, which lack theoretical underpinning. Herein, by introducing the simplified molecular-input line-entry system, we have addressed the challenge posed by the inconsistency of -TE material types, and present a machine learning model that evaluates the Seebeck coefficient with an of 0.

Multi-Dimensional Color Tunable Long Persistent Luminescence in Metal Halide-Based CPs Through Precise Manipulation of Electronic and Steric Effects.

Regulating strategies for long persistent luminescence (LPL) are always in high demand. Herein, a series of coordination polymers (CPs) (SUST-Z1-Z4) are fabricated using 1,10-phenanthroline derivatives involving different substituents (─H, ─CH, ─Cl, and ─Br) as ligands, respectively. Crystallographic data demonstrate that these CPs adopt alternating arrangements of cadmium halide chains and π-conjugated ligands.

A ratiometric fluorescence sensor based on molecular imprinting technology for rapid and visual detection of norfloxacin.

The problem of excessive use and abuse of antibiotics in the environment and food biology is becoming increasingly prominent, and norfloxacin (NOR) is widely used as an inexpensive and broad-spectrum antibiotic drug. Therefore, rapid and effective detection of antibiotics and residues in biological samples has become a demand of the times. This article describes a ratiometric fluorescence sensor based on molecular imprinting technology for the rapid and visual detection of NOR.

Smartphone-Assisted Fluorescence Determination of Inorganic Phosphorus Using a Samarium Metal-Organic Framework.

Inorganic phosphori are widely used in food, whose quantitative detection method is of significance. This work presents a Sm-DDB (HDDB = 1,3-di(3',5'-dicarboxylphenyl)benzene), which acts as a ratiometric fluorescence sensor to monitor PO, HPO, and (PO) with high sensitivity. The determination factors of pH, MOF dosage, and fluorescence response time are optimized as 7.

Designing Carbon-Foam Composites via Molten-State Reduction for Multifunctional Electromagnetic Interference Shielding.

Advanced electromagnetic interference (EMI) shielding materials are in great demand because of the severe electromagnetic population problem caused by the explosive growth of advanced electronics. Besides superior EMI shielding properties, the mechanical strength of the shielding materials is also critical for some specific application scenarios (e.g.

N skeleton-regulated cobalt phthalocyanine promotes polysulfide adsorption and redox kinetics.

An N skeleton substituent on cobalt phthalocyanine (CoPc) was meticulously studied to redistribute the charge in phthalocyanine, improve the mass diffusion, and promote the redox kinetics of polysulfides (LiPS), resulting in a significant ultra-low capacity decay of 0.11% at 5C over 500 cycles.

Effects of transglutaminase on the gelation properties and digestibility of pea protein isolate with resonance acoustic mixing pretreatment.

Our previous research confirmed that resonance acoustic mixing (RAM) pretreatment effectively improved the emulsification and water retention of commercial pea protein isolate (PPI), but significantly reduced its gel performance. This study aimed to investigate the effect of transglutaminase (TGase, 0.1 %, 0.

Scaffolding and Heavy-Atom Effects of Metal Chains Enhanced Tunable Long Persistent Luminescence in Metal-Organic Frameworks.

Metal-organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted extensive research attention due to their potential applications in information encryption, anticounterfeiting technology, and security logic. The strategic combinations of organic phosphor linkers and metal ions lead to tremendous frameworks, which could unveil many undiscovered properties of organics. Here, the synthesis and characterization of a three-dimensional MOF (Cd-MOF) is reported, which demonstrates enhanced blue photoluminescence and a phosphorescent lifetime of 124 ms as compared to the pristine linker (HL) under ambient conditions due to the scaffolding and heavy-atom effects of metal chains in the framework.

Robust and ultra-thin nanocellulose/MXene composite film and its performance in efficient electricity-generation and sensing.

The conversion of mechanical energy into electrical energy by triboelectric nanogenerators (TENG) has attracted attention in recent years, particularly in the field of wearable sensor. In this work, TEMPO-oxidized cellulose nanofibers (TOCNF) with carboxylate groups were compounded with MXene to serve as both the negative friction layer and the electrode in assembling a TENG with nylon. The synergistic effect between TOCNF and MXene was analyzed to disclose its influence on the performance of the as-prepared TENG.

Hierarchical existential prior based on expanded pseudo-label for crack detection.

Road crack detection approaches based on the image processing technique have attracted much attention during the past decade due to their convenience and efficiency, but most of them cannot achieve the expected performances due to the complex background interference and severe category imbalance of road images. This paper presents a hierarchical existential prior based on an expanded pseudo-label for crack detection. In particular, the framework contains three variants of U-Net, and each sub-network is trained by pseudo-labels generated by transforming semantic categories of non-crack pixels distributed in the neighborhoods of crack ones.

Synthesis of continuously substituted quinolines from -alkenyl aromatic isocyanides by palladium-catalyzed intramolecular imidoylative 6- cyclization.

An efficient synthesis of continuously substituted quinoline derivatives palladium-catalyzed intramolecular 6- imidoylative cyclization of -alkenyl aryl isocyanides with (hetero)aryl halides or vinylic triflates has been developed. The reaction proceeds through the concerted metalation-deprotonation (CMD) mechanism by activation of a vinyl C-H bond with imidoylpalladium assisted by the carboxylate.

Laser processing materials for photo-to-thermal applications.

Photothermal conversion materials (PCMs) are crucial component in solar-thermal energy technologies. Although various PCMs with excellent sunlight harvesting have been developed for colorful solar-thermal applications, uniform and large-scale production of PCMs remains a challenge, and the PCMs prepared through the conventional methods are often non-site specific. Laser processing technology (LPT), as an efficient, convenient, green and sustainable technology, can directly create micro/nano structures and patterns at specific locations on materials surface, attracting widespread attention in photo-to-thermal applications.

Residual level of chlorine disinfectant, the formation of disinfection by-products, and its impact on soil enzyme activity.

Disinfectants can kill pathogenic microorganisms, effectively block the spread of infectious diseases, and are widely used during epidemics. However, a little has been studied about the environmental hazards caused by the heavy use of disinfectants. In this paper, the residual situation of chlorine ions in the soil, possible disinfection by-products (DBPs), and effects on soil enzyme activities after using 84 disinfectants (main component: sodium hypochlorite) and hypochlorite disinfectant (main component: hypochlorous acid) were investigated.

An Unbiased Feature Estimation Network for Few-Shot Fine-Grained Image Classification.

Few-shot fine-grained image classification (FSFGIC) aims to classify subspecies with similar appearances under conditions of very limited data. In this paper, we observe an interesting phenomenon: different types of image data augmentation techniques have varying effects on the performance of FSFGIC methods. This indicates that there may be biases in the features extracted from the input images.

Enhanced Degradation of Oxytetracycline Antibiotic Under Visible Light over BiWO Coupled with Carbon Quantum Dots Derived from Waste Biomass.

Improving the photogenerated carrier separation efficiency of individual semiconductor materials has always been a key challenge in photocatalysis. In this study, we synthesized a novel photocatalytic material, N-CQDs/UBWO, in situ by combining nitrogen-doped carbon quantum dots (N-CQDs) derived from discarded corn stover with ultrathin BiWO nanosheets (UBWO). Detailed characterization indicates that the random distribution of N-CQDs on the UBWO surface increases the specific surface area of UBWO, which is beneficial for the adsorption and degradation of oxytetracycline (OTC).

Efficient and Stable Deep-Blue 0D Copper-Based Halide TEACuI with Near-Unity Photoluminescence Quantum Yield for Light-Emitting Diodes.

Achieving deep-blue light with high color saturation remains a critical challenge in the development of white light-emitting diode (LED) technology, necessitating luminescent materials that excel in efficiency, low toxicity, and stability. Here, we report the synthesis of [N(CH)]CuI (TEACuI) single crystals (SCs), which exhibit deep-blue photoluminescence (PL) at 450 nm. These crystals are characterized by a significant Stokes shift of 180 nm, a long lifetime of 1.

Adhesion Strategy for Cross-Linking AgNWs/MXene Janus Membrane: Stretchable and Self-Healing Electromagnetic Shielding and Infrared Stealth Capabilities.

Developing lightweight polymer shielding membranes with additional physicochemical properties is of great significance for addressing the complex contemporary security demands. However, precise structural design at the molecular level remains a challenge. Herein, a unique Janus composite membrane is assembled from conductive AgNWs/MXene 1D/2D network and polyurethane elastomer (MPHEA), displaying combined superior electromagnetic shielding effectiveness (EMSE) of up to 80 dB and remarkable infrared stealth capability at a wide temperature range of room temperature to 50 °C.

Biomass-derived multifunctional conductive fabrics with aluminum ion coordination: Integrating hydrophobic triboelectric and electrothermal conversion properties.

The accelerated depletion of fossil resources and the rising demand for environmental protection have posed significant challenges to conventional e-smart textiles, driving the need for more sustainable alternatives. This has created an urgent demand for environmentally friendly, lightweight, and renewable smart textiles. This study developed biomass-derived flexible conductive fabrics (BWPU/CNTs/Al/NF) with a microporous structure using impregnation and coating techniques guided by the wet phase transition film-forming principle.

Unveiling the Antithermal Quenching Behavior in 0D Inorganic Metal Halide CsInCl(HO) Mediated by Upconversion Emission.

Inorganic metal halides (IMHs) often suffer from severe fluorescence thermal quenching, limiting their application at elevated temperatures. Therefore, the exploration of IMHs exhibiting antithermal quenching (ATQ) behavior is of great importance. In this study, we developed a green synthetic route using a solvent evaporation method to successfully synthesize the 0D IMHs CsInCl(HO).

In Situ Modulation of NiFeOOH Coordination Environment for Enhanced Electrocatalytic-Conversion of Glucose and Energy-Efficient Hydrogen Production.

Glucose electrocatalytic-conversion reaction (GCR) is a promising anode reaction to replace the slow oxygen evolution reaction (OER), thus promoting the development of hydrogen production by electrochemical water splitting. Herein, NiFe-based metal-organic framework (MOF) is used as a precursor to prepare W-doped nickel-iron phosphide (W-NiFeP) nanosheet arrays by ion exchange and phosphorylation, which exhibit a high electrocatalytic activity toward the hydrogen evolution reaction (HER), featuring an overpotential of only -179 mV to achieve the current density of 100 mA cm in alkaline media. Notably, electrochemical activation of W-NiFeP facilitates the in situ formation of phosphate groups producing W,P-NiFeOOH, which, in conjunction with the W co-doped amorphous layers, leads to a high electrocatalytic performance toward GCR, due to enhanced proton transfer and adsorption of reaction intermediates, as confirmed in experimental and theoretical studies.