2,942 results match your criteria: "Southwest University of Science and Technology[Affiliation]"

A series of BiSr(YEuO)(BO) (0 ≤ ≤ 0.4) phosphors with color-tunable emissions were synthesized, and their photoluminescence properties were systematically investigated. Powder X-ray diffraction confirmed the phase purity and successful cationic substitution, as evidenced by the linear expansion of the unit cell parameters resulting from the replacement of Y with larger Eu ions.

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Two-dimensional (2D), MXenes' large surface area, great hydrophilicity, chemical stability, tunable electronic structure, and excellent electrical conductivity make them effective photocatalysts by enhancing light absorption and charge separation. To harness solar energy for photocatalysis, silver nanoparticles (Ag NPs), known for their catalytic properties, were incorporated into MXene sheets to synthesize Ag@NbCT composite by a cost-effective and straightforward electrostatic self-assembly method. The SEM images showed that Ag NPs were attached to the surface of 2D exfoliated MXene sheets.

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Inspired by the active site of carbon monoxide dehydrogenase (CODH), where a pair of amino acids facilitating hydrogen bonding manages the reversible interconversion of CO and CO with high efficiency, we developed a family of manganese terpyridine derivatives (1-4), in which a benzimidazole moiety functions as a proton relay to assist the CO reduction reaction (CORR). To regulate the position of the proton donor, the benzimidazole moiety was introduced into the framework by two approaches, and the p of the proton relay was adjusted by methylation of the benzimidazole moiety. We found that all such designs led to a sharp corruption in the activity of electrochemical CO reduction compared with that of our previously reported analogues.

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Uniformly dispersed TiO in indole-based porous polymer for efficient wastewater degradation through synergistic adsorption and photocatalysis.

J Colloid Interface Sci

December 2025

School of Materials and Chemistry & State Key Laboratory of Environmental-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, PR China. Electronic address:

Titanium dioxide (TiO), functioning as an inorganic photocatalyst, often encounters aggregation issues and lacks sufficient pollutant enrichment, leading to reduced photocatalytic performance. To address these challenges, by employing cation-π interaction, titanium ions (Ti) were effectively driven and induced to disperse uniformly around the indole ring plane of the indole-based porous polymer (PTIMK), which served as a carrier. Subsequently, through an in-situ reaction, a titanium dioxide/indole-based porous composite material (PTIMK/TiO-C) with exceptional TiO dispersion was prepared.

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Modification of monometallic Ni-based catalysts by transition metals may open a new window to compensate for their poor low-temperature activity and high-temperature deactivation in the CO methanation reaction. Here, some transition metals were incorporated into Ni/sepiolite (Sep) by a facile one-step coimpregnation process, where the ultrathin (1.5-2.

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Operando Monitoring of Chemo-Mechanical Stress Evolution in SiO/C Composite Anodes via Optical Frequency Domain Reflectometry.

ACS Appl Mater Interfaces

July 2025

The Key Laboratory of Optoelectronic Technology and Systems (Ministry of Education), Chongqing University, Chongqing 400044, China.

The cycling performance of lithium-ion batteries is closely related to the expansion effect of anode materials during charge and discharge processes. Studying the chemo-mechanical stress evolution of SiO/C composite anode materials is crucial for evaluating battery performance. Here, we propose a high spatial resolution phase-sensitive optical frequency domain reflectometry technique, in which the fiber under test is embedded into the anode of a lithium-ion battery to monitor the chemo-mechanical stress evolution during cycling with a spatial resolution of 1.

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Objective: This study aimed to evaluate the effects of garlic skin as a feed ingredient on growth performance, antioxidant capacity, immune function, and rumen health in goats.

Methods: Twelve male black goats with similar body conditions were randomly assigned to two groups. The control group (CON) was fed a basal diet, while the experimental group (GAS) received a diet supplemented with garlic skin for 60 days.

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Attachment insecurity may intensify the formation of rewarding memory traces associated with social media, potentially driving subsequent social media use in familiar contexts. However, the details of what individuals with problematic social media use (PSMU) remember of social media-related episodes under attachment threat are still largely unknown. The study applied a novel memory task to investigate how attachment threat biases the long-term retrieval of social media-related episodes among at-risk users and to identify which memory aspects predict usage.

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Background: Thermoacoustic Imaging (TAI) combines the high contrast of microwave imaging with the high resolution of ultrasound imaging, establishing itself as a novel, non-invasive medical diagnostic technique. However, the high-power (peak power: 5∼100 kW; pulse width: 10∼1000 ns) used in TAI often cause remarkable interference with thermoacoustic signal acquisition systems and traditional piezoelectric ultrasound transducers. This interference leads to degraded thermoacoustic image quality and a pronounced "near-field dead zone" (NFDZ), which severely restricts the clinical application and development of TAI.

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This study aims to promote the effective utilization of moderately weathered tunnel slag, preserve the ecological integrity of construction sites, and support sustainable development. An orthogonal experimental design was used to examine the effects of aggregate gradation, cement content, and curing age on the uniaxial compressive strength (UCS) of Cement-Stabilized Macadam (CSM) containing tunnel slag. Range analysis showed that CSM made with moderately weathered slag exhibits favorable mechanical properties.

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Monitoring and understanding the photocatalytic reactions at individual covalent organic framework (COF) photocatalysts are crucial for gaining insights into their structure-activity relationships. Here, we report real-time imaging of the guest-induced structural torsion in single COF-300 microcrystals for enhanced photocatalysis utilizing dark-field optical microscopy (DFM). Upon inclusion of ethyl acetate (EAC) into the COF-300 framework, deformed EAC-encapsulated COF-300 (EAC@COF-300) microcrystals with twisted diimine linkers are generated, resulting in an inert-to-active photocatalytic reactivity transformation.

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Background And Aims: Cynodon dactylon (L.) Persoon is a clonal plant often used in slope restoration and greening projects. Two different types of C.

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This study systematically investigates the degradation and failure prediction of pipeline materials in sulfur-containing environments, with a particular focus on X52 pipeline steel exposed to high-sulfur environments. Through uniaxial tensile tests to assess mechanical properties, it was found that despite surface corrosion and a reduction in overall structural load-bearing capacity, the intrinsic mechanical properties of X52 steel did not exhibit significant degradation and remained within standard ranges. The Johnson-Cook constitutive model was developed to accurately capture the material's plastic behavior.

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The substituent effects on crystal stacking topology and stability of the 5,5-dinitro-2H,2H-3,3-bi-1,2,4-triazole (DNBT) and its three energetic cocrystals with 1,3,5-trinitrobenzene (TNB), 2,4,6-trinitrotoluene (TNT), and picric acid (PA) were systematically investigated through combined density functional theory (DFT) calculations and classical molecular dynamics (MD) simulations. The interaction mechanism and detonation performance of the three energetic cocrystals were implemented to the electrostatic potential (ESP), Hirshfeld surface analysis, radial distribution function (RDF), binding energy, and detonation parameters. In contrast to N-H⋯O interactions in DNBT, three cocrystals exhibited more distinctly weak C-H⋯O intermolecular hydrogen bonds and NO-π stacking interactions to stabilize the lattice.

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Synergistic Effect of MWCNT and CB on the Piezoresistive Properties of Laser Ablation Composites Strain Sensors.

Nanomaterials (Basel)

June 2025

Interdisciplinary Research Institute of Advanced Intelligent Equipment, Xihua University, Chengdu 610039, China.

A flexible and highly sensitive piezoresistive strain sensor was fabricated through the application of CO laser ablation on a composite film composed of multi-walled carbon nanotubes, carbon black, and polydimethylsiloxane (MWCNT/CB/PDMS). The results of scanning electron microscopy (SEM) surface analysis shows that the "bush-like" conductive structure on the PDMS-based composite material membrane post-laser ablation is formed. Transmission electron microscopy (TEM) images and X-ray diffraction (XRD) spectra of the ablation products indicated the formation of an amorphous carbon layer on the surface of carbon nanomaterials due to laser ablation.

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To enhance the sensing performance of fiber-optic magnetic field sensors, we explored the design, optimization, and application prospects of a D-type fiber-optic magnetic field sensor. This D-type PCF-SPR sensor is metal coated on one side (the metal used in this study is gold), which serves as the active metal for SPR and enhances structural stability. Magnetic fluid is applied on the outer side of the gold film for SPR magnetic field sensing.

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Humic acid (HA), a major component of soil organic matter, is a naturally occurring macromolecule formed through the decomposition of plant and microbial residues. Its molecular structure comprises functional groups such as carboxyl, phenolic, hydroxyl, and carbonyl functional groups, which enable HA to interact with soil particles, nutrients, and biological systems. These interactions significantly contribute to soil fertility and overall plant productivity.

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Molybdenum exposure causes kidney damage related to the excretion of heavy metals.

Ecotoxicol Environ Saf

September 2025

College of Life Science and Agri-forestry, Southwest University of Science and Technology, Mianyang 621010, China; Rural Revitalization Project Center, Guizhou Department of Agriculture and Rural Affairs, Guiyang 550000, China. Electronic address:

Renal excretion is a primary pathway for heavy metal metabolism. In this study, we established an animal model of molybdenum toxicity and found that Mo exposure led to structural and functional damage to the kidneys. Further multi-omics analyses identified a regulatory network involving "Arachidonic acid metabolism," "Steroid hormone biosynthesis," "Folate biosynthesis," and "Retrograde endocannabinoid signaling," which played a crucial role in the mechanism underlying renal heavy metal excretion injury induced by molybdenum exposure.

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Gambling Disorder and its adverse outcomes are prevalent in Chinese gamblers, and modifiable cognitive factors should be identified to improve interventions. Drawing on the Self-Regulatory Executive Function (S-REF) model, the present study examined the associations between positive and negative metacognitions about gambling, attentional inflexibility, and severity of Gambling Disorder symptoms in 1,024 Chinese gamblers. Results revealed that, consistent with hypotheses, both positive and negative metacognitions about gambling were positively correlated with severity of Gambling Disorder symptoms.

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The fullerene derivative C-CM-C was synthesized a two-step reaction using fullerene (C), curcumin (CHO), and bromoalkanes (RBr) as raw materials. The structure of C-CM-C was characterized by nuclear magnetic resonance (H and C NMR) and high-resolution mass spectrometry (HR MS). Thermal analysis, including differential thermal analysis (DTA), vacuum stability tests (VST), thermogravimetric analysis (TG), and methyl violet experiments, along with electron paramagnetic resonance spectroscopy, was used to investigate the interaction mechanism between C-CM-C and nitrocellulose (NC).

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The purpose of this study was to evaluate the effects of probiotics supplementation on goats fed a high-concentrate diet in terms of growth performance, rumen fermentation, microbiome and metabolite, and barrier function. Twelve 5-month-old goats (22.74 ± 0.

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Introduction: Distal tibial fractures are common fracture sites and usually require surgical treatment to achieve anatomical reduction. Intramedullary nails (IMN) are widely used in orthopedics for stabilizing fractured bones and treating limb deformities. The process of postoperative bone healing is of great significance for patient rehabilitation and can guide subsequent treatment methods.

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Effective detection of wine adulteration can protect the rights and interests of consumers and producers. The combination of spectroscopic technology and chemometric methods can achieve adulteration discrimination of wine, providing feasibility for developing consumer-grade wine adulteration detection equipment. This study attempts to use a wavelength selection algorithm to guide the development of a four-channel, low-cost spectroscopic device for rapid identification of wine adulteration.

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As the Yangtze River Economic Belt (YREB) continues its rapid economic expansion, the mismatch between the supply and demand of industrial water resources has become increasingly pronounced. While existing research has largely overlooked the decoupling dynamics between industrial water consumption and economic expansion in this region, this study provides a comprehensive analysis of its decoupling relationship, the stability, and the underlying driving forces. Drawing on data from 11 provinces and municipalities in the YREB spanning the 11th to 13th Five-Year Plan (FYP) periods, this study employs the Tapio decoupling model and the logarithmic mean divisia index (LMDI) model as its primary analytical tools.

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Pork quality is critically influenced by fat deposition patterns, with emerging evidence implicating circular RNAs (circRNAs) as key regulators of adipogenesis, though the specific circRNAs controlling lipogenesis remain incompletely characterized. To systematically elucidate the competing endogenous RNA (ceRNA) network governing porcine adipocyte differentiation, we isolated primary preadipocytes from piglets, induced differentiation, and performed comprehensive RNA sequencing that identified 504 differentially expressed (DE) circRNAs, 126 DE miRNAs, and 1615 DE mRNAs between proliferative and differentiated states, revealing an extensive transcriptomic rewiring during adipogenesis. Functional characterization demonstrated that two circRNAs, circSAMD4A and circLPAR1, significantly promoted lipid accumulation.

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