772 results match your criteria: "Xi' an Polytechnic University[Affiliation]"

Bioinspired Multifunctional Eutectogels for Skin-Like Flexible Strain Sensors with Potential Application in Deep-Learning Handwriting Recognition.

Langmuir

September 2025

Department of Light Chemical Engineering, School of Textiles Science and Engineering; Key Laboratory of Special Protective, Ministry of Education; Jiangnan University, Wuxi 214122, P. R. China.

Polymerizable deep eutectic solvents (PDES) have recently emerged as a class of solvent-free ionically conductive elastomers and are considered among the most feasible candidates for next-generation ionotronic devices. However, the fundamental challenge persists in synergistically combining high mechanical strength, robust adhesion, reliable self-healing capacity, and effective antimicrobial performance within a unified material system capable of fulfilling the rigorous operational demands of next-generation ionotronic devices across multifunctional applications. Inspired by the hierarchical structure of spider silk, HCAG eutectogels composed of acrylic acid (AA), 2-hydroxyethyl acrylate (HEA), and choline chloride (ChCl) were successfully synthesized via a one-step photopolymerization method.

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Cancer, with its inherent heterogeneity, is commonly categorized into distinct subtypes based on unique traits, cellular origins, and molecular markers specific to each type. However, current studies primarily rely on complete multi-omics datasets for predicting cancer subtypes, often overlooking predictive performance in cases where some omics data may be missing and neglecting implicit relationships across multiple layers of omics data integration. This paper introduces Multi-Layer Matrix Factorization (MLMF), a novel approach for cancer subtyping that employs multi-omics data clustering.

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Phosphors, as the crucial material of phosphor-converted white light-emitting diodes (pc-WLEDs), have played an essential role in improving luminescent efficiency and regulating color rendering index (CRI). Hence, we have successfully synthesized a novel Eu doped Sr(AlO)(WO) (SAWO) green phosphor for the first time using the solid-state reaction, as well as systematically investigated its phase and crystal structure, luminescent properties, and thermal stability. The SAWO:x mol%Eu (0.

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An advanced electrochemical immunosensor platform was designed for the precise quantification of cortisol. The sensor design integrates graphene oxide-silicon carbide (GO-SiC) nanocomposites onto a glassy carbon electrode (GCE). Denatured bovine serum albumin (d-BSA) and an anti-cortisol antibody were immobilized on the GO-SiC/GCE surface as part of the immunosensor's design.

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Smart antibacterial materials are gaining attention for their potential in controlled drug release and efficient treatment. This study constructed a composite hydrogel based on oxidized bacterial cellulose (OBC) and quaternary ammonium chitosan (QAC). This hydrogel was loaded with the natural antibacterial drug berberine (Ber) and utilized the abundant functional groups (such as amino and carboxyl groups) on OBC and QAC to achieve pH responsiveness, achieving on-demand drug release in the alkaline microenvironment of simulated chronic wounds.

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This study addresses the critical challenges of interfacial stress mismatch, fiber degradation, and unstable clad geometry in manufacturing continuous carbon fiber-reinforced aluminum composites (Cf/Al) via laser cladding, driven by rapid thermal gradients. A dual-ellipsoid heat source-based thermoelastic-plastic finite element model was developed in Abaqus, integrating phase-dependent material properties and latent heat effects to simulate multi-physics interactions during single-track deposition, resolving transient temperature fields peaking at 1265 °C, and residual stresses across uncoated and Ni-coated fiber configurations. The work identifies an optimal parameter window characterized by laser power ranging from 700 to 800 W, scan speed of 2 mm/s, and spot radius of 3 mm that minimizes thermal distortion below 5% through gradient-controlled energy delivery, while quantitatively demonstrating nickel interlayers' dual protective role in achieving 42% reduction in fiber degradation at 1200 °C compared to uncoated systems and enhancing interfacial load transfer efficiency by 34.

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Background: Breast cancer (BC) is the most commonly diagnosed malignancy among women worldwide. There is increasing interest in the role of modifiable lifestyle factors, particularly nutrition and physical activity, in influencing cancer risk, progression, and treatment response.

Objective: This review explores how functional foods and exercise can modulate BC through molecular and epigenetic mechanisms and evaluates their potential as adjunctive strategies in prevention and therapy.

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Polyurethane Elastomers with Mechanochromic and Self-Healing Functions for Strain Sensor.

Macromol Rapid Commun

August 2025

School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices, Ministry of Education, Xi'an Jiaotong University, Xi'an, China.

Polyurethane is formed by the reaction of a polyol and an isocyanate by covalent bonds, which have been rapidly developing due to their good processability and mechanical properties. However, polyurethane is subject to micro-damage due to external stresses during service, which can lead to rapid performance failure. Currently, the nondestructive assessment methods generally require complex and expensive equipment.

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Terahertz (THz) absorbers with ultra-broadband and ultra-narrowband absorption capabilities are crucial for integrated and efficient terahertz modulation. This study proposes a dual-mode tunable terahertz absorber based on the phase transition characteristics of vanadium dioxide (VO), enabling dynamic switching between narrowband and broadband absorption through its insulating-to-metallic transition. In the insulating state, the excitation of quasi-bound states in the continuum (Q-BIC) resonance geometric parameter modulation of silicon pillars is investigated, with its physical mechanism elucidated impedance matching theory and multipole analysis.

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To elucidate the microscopic origin of the giant dielectric properties in perovskite calcium copper titanate (CCTO), this study proposes a novel optimization of the Skanavi model by incorporating ionic polarization displacement fields. The optical dielectric constant is calculated using the Shannon ionic radius, which accounts for coordination number and electron spin state effects, while the static dielectric response is analyzed through the introduced displacement field. By evaluating the effective electric field ratios of Ca, Cu, Ti, and O ions under varying supercell sizes (1 × 1 × 1 to 19 × 19 × 19), we observe that Ca and Ti exhibit robust lattice stability, whereas Cu polarization direction reverses and O polarization amplitude diminishes significantly.

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Next-generation pilot suits are evolving into intelligent, adaptive platforms that integrate advanced polymeric materials, smart textiles, and on-body artificial intelligence. High-performance polymers have advanced in mechanical strength, thermal regulation, and environmental resilience, with fabrication methods like electrospinning, weaving, and 3D/4D printing enabling structural versatility and sensor integration. In particular, functional nanomaterials and hierarchical nanostructures contribute critical properties such as conductivity, flexibility, and responsiveness, forming the foundation for miniaturized sensing and integrated electronics.

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Pressure-Activated Breathable Liquid-Metal Electrodes for Long-Term Sleep Electroencephalogram Monitoring.

Langmuir

September 2025

Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.

Sleep electroencephalography monitoring has become an effective strategy for health evaluation. However, conventional gel electrodes suffer from inherent limitations such as moisture loss and poor breathability, compromising long-term signal stability and wear comfort. Here, we present a facile strategy for fabricating breathable, biocompatible liquid-metal electrodes with enhanced interfaces.

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Defining Human Thermoregulation Limits: A Critical Evaluation of Predictive Models using Healthy Young Adults.

Am J Physiol Regul Integr Comp Physiol

August 2025

College of Urban Planning and Municipal Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi, 710048, China.

The core temperature inflection point (CTIP) method (also known as humidity-ramp protocol) and biophysical modeling are widely used to determine human thermoregulation limits, yet their validity under prolonged heat exposure remains unverified. This study evaluated their predictive accuracy by exposing 36 healthy young adults (20 males & 16 females) to five counterbalanced 8-hour indoor heat trials in a controlled chamber (36°C/74.5%RH, 40°C/55.

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EEG signal is being widely used in the field of emotion recognition, which currently suffers from the difficulty of obtaining highly distinguishable features. We propose CNN-BiLSTM-CS for emotion recognition EEG-based, which is to address the shortcomings of the traditional LSTM unidirectional propagation and Softmax supervised model in feature extraction. The method firstly employs BiLSTM to CNN, which can bilaterally obtain emotion feature information, and then introduces Center and Softmax to form a joint loss function to minimize the intra-class distance and maximize the inter-class distance, which can improve the recognition ability.

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The synergistic enhancement effect among multilevel composite structures is essential for improving the overall performance of contacts. Notably, natural bamboo demonstrates exceptional mechanical properties through the coupling effect of its structure. By reforming the microstructure of bamboo, an Ag-CuO contact, consisting of the Ag-rich regions, the CuO chain-like skeleton regions, and the CuO barrier layers, was inversely designed and controllably fabricated.

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Motivation: Peptide toxicity is a critical concern in the development of peptide-based therapeutics, as toxic peptides can lead to severe side effects, including organ damage, immune reactions, and cytotoxicity. Predicting peptide toxicity accurately is essential to ensure the safety and efficacy of these drugs.

Results: In this study, we propose a novel model, ToxMSRC, to predict peptide toxicity using a combination of the continuous bag of words (CBOW) method from word2vec, synthetic minority over-sampling technique (SMOTE), multi-scale convolutional neural networks (CNN), and bidirectional long short-term memory (BiLSTM).

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Multi level synergistic regulation of phosphorus slow-release performance through LDH modified biochar-based slow-release fertilizer.

Environ Res

August 2025

School of Environmental and Chemical Engineering, Xi'an Key Laboratory of Textile Chemical Engineering Auxiliaries, Engineering Research Center of Biological Resources Development and Pollution Control Universities of Shaanxi Province, Key Laboratory of Textile Dyeing Wastewater Treatment Universiti

Addressing global phosphorus resource scarcity and low utilization efficiency of traditional phosphorus fertilizers, this study presents an innovative strategy for modifying biochar-based slow-release phosphorus fertilizer (BSPF) with Mg-Al layered double hydroxides (LDH-BSPF), to enhance phosphorus slow-release performance through multi-level synergistic regulation. A novel slow-release system was fabricated via co-pyrolysis technology integrating biomass, phosphorus sources, and LDH. The effects of Mg/Al molar ratios (2:1-5:1) and pyrolysis temperatures (400-600 °C) on material structural properties were systematically investigated.

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Superhydrophobic coatings possess distinct wettability characteristics and hold significant potential in metal corrosion protection and underwater drag reduction. However, their practical application is often hindered by poor durability arising from the fragility of their micro/nanostructured surface roughness. In this study, a durable superhydrophobic coating featuring a hierarchical, hydrangea-like micro/nanostructure was successfully fabricated on an aluminum alloy substrate via a simple one-step cold-spraying technique.

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Highly Efficient Tribocatalysis of Superhard SiC for Water Purification.

Nanomaterials (Basel)

August 2025

Quantum Materials and Devices Key Laboratory of Shaanxi Province's High Education Institution, School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China.

Mechanical friction offers a frequent approach for sustainable energy harvesting, as it can be captured and transformed into electricity by means of the triboelectric phenomenon. Theoretically, this electricity may subsequently be employed to drive electrochemical water purification processes. Herein, the experimental results confirm that the SiC particles effectively trigger the tribocatalytic decomposition of Rhodamine B (RhB).

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Node Flexibility Unlocks Structural Adaptability and Guest Versatility of Anionocages.

Angew Chem Int Ed Engl

August 2025

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, Xi'an Key Laboratory of Functional Supramolecular Structure and Materials, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069, China.

Due to their exceptional nodal flexibility, anionocages are promising host molecules capable of mimicking the dynamic self-assembly and host-guest chemistry of proteins. However, their application has been limited by the challenges in constructing large internal cavities. Here, we present an effective strategy to overcome this limitation by enhancing node flexibility to improve both structural adaptability and guest encapsulation versatility.

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Hierarchically Engineered Flame-Retardant Triboelectric Yarn Exhibiting Robust Mechanical Performance and Humidity-Boosted Electrical Output for Firefighting Applications.

Adv Sci (Weinh)

August 2025

School of Textile Science and Engineering, Key Laboratory of Functional Textile Material and Product of the Ministry of Education, Xi'an Polytechnic University, Xi'an, Shaanxi, 710048, China.

As urbanization progresses and building complexity grows, fire safety gains prominence, driving up demand for intelligent, high-performance fire-fighting gear. This study develops a super-intelligent fireproof yarn (SIFY) with a coaxial structure via hierarchical textile assembly. The middle waterproof and flame-retardant layer and the outer high-strength flame-retardant poly(p-phenylene benzobisoxazole) fibers endow SIFY with top-notch flame-retardant performance (limiting oxygen index of 50.

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Regulation of Microstructure and Absorption Properties of MXene Materials: Theoretical and Experimental.

Adv Sci (Weinh)

August 2025

Research and Innovation Center for Graphene and 2D Materials (RIC2D), Khalifa University, P.O. Box 127788, Abu Dhabi, UAE.

This study systematically investigates the modulation mechanism of transition metal elements (Ti, Nb, Ta, V) on the microwave absorption performance of MXenes (TiCT, TiNbCTx, TiTaCT, TiVCT, NbCT, VCT). Using multiscale characterization techniques, the microstructure, elemental distribution, and surface chemical states of these materials are comprehensively analyzed. Integrated electromagnetic parameter measurements and theoretical calculations elucidate the physical mechanisms underlying their distinct microwave absorption behaviors.

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In-situ loading of ag nanoparticles and sodium cefoperazone onto bacterial cellulose-based composite antimicrobial films for promoting wound healing.

Int J Biol Macromol

September 2025

School of Materials Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China; Key Laboratory of Functional Textile Material and Product, Ministry of Education, Xi'an, Shaanxi 710048, China. Electronic address:

This study focuses on bacterial cellulose (BC), a material with a three-dimensional network structure, excellent biocompatibility, and superior mechanical properties, to address its inherent limitations of insufficient antibacterial activity and poor rehydration capability. Silver nanoparticles (AgNPs) were synthesized in situ on the BC surface via a hydrothermal method, followed by immersion in polyethylene glycol (PEG) and cefoperazone sodium (CEFNa) solutions to prepare BC/Ag/PEG/CEFNa composite films. The BC films and composites were comprehensively characterized using techniques such as XRD, SEM, and FTIR spectroscopy.

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The Fokker-Planck (FP) equation governs the probabilistic response of diffusion processes driven by stochastic differential equations (SDEs). Gaussian mixture models and deep learning solvers are two state-of-the-art methods for solving the FP equation. Although mixture models mostly depend on empirical sampling strategies and predefined Gaussian components, deep learning techniques suffer from inherent interpretability deficits and require excessively large training samples.

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