In order to study the adsorption and desorption mechanisms of gas in micropores, a coal matrix model incorporating microporous structures is proposed in this paper. The adsorption characteristics of CH and CO in 1, 2, and 5 nm pore size models and the effect of CO injection on CH desorption in models containing adsorbed methane were studied. The results show that in different pore size models at the same temperature and pressure the adsorption capacity for CO exceeds that of CH.
View Article and Find Full Text PDFMetal mesh-based transparent electrodes possess several notable advantages, including exceptional flexibility, high electrical conductivity, and excellent light transmittance, making them the focus of increasing research interest. However, their widespread application in perovskite solar cells (PSCs) remains a significant challenge due to the susceptibility of the metal grids to corrosion and their inherently rough surface. In this study, we report environmentally stable, low surface roughness transparent conductive electrodes by integrated micro-nano fractal metal grid transparent conductive electrodes (MNF-TCEs) and PH1000.
View Article and Find Full Text PDFThe distribution of electrical potentials and current in exogenous electrostimulation has significant impacts on its effectiveness in promoting tissue repair. However, there is still a lack of a flexible, implantable power source capable of generating customizable patterned electric fields for in situ electrostimulation(electrical stimulation). Herein, this study reports a fuel cell patch (FCP) that can provide in situ electrostimulation and a hypoxic microenvironment to promote tissue repair synergistically.
View Article and Find Full Text PDFMajor depressive disorder (MDD) represents a widespread mental health condition. Efficiently moving therapeutic substances across the blood-brain barrier (BBB) remains a critical obstacle in addressing depressive disorders. AC5216, identified as a translocator protein (TSPO) ligand and considered a potential treatment for major depressive disorder (MDD), faces limitations due to its subpar druggability and oral bioavailability.
View Article and Find Full Text PDFWe propose a heterogeneously accelerated reduced cluster-in-molecule (CIM) local correlation approach for calculating host-guest interaction energies. The essence of this method is to compute only the clusters that make significant contributions to the interaction energies while approximately neglecting those clusters with smaller contributions. Benchmark calculations at the CIM resolution-of-identity second-order Mo̷ller-Plesset perturbation (CIM-RI-MP2) or CIM spin-component-scaled RI-MP2 (CIM-SCS-RI-MP2) levels, involving three medium-sized protein-ligand structures, demonstrate that the reduced CIM method achieves over 48% time savings without compromising accuracy, as the interaction energy error remains within 0.
View Article and Find Full Text PDFAdenosine triphosphate (ATP) as an energy source plays a key role in providing and regulating energy for life activities in all organisms. Abiotic synthesis of ATP in vitro remains a challenge due to thermodynamic and kinetic constraints in water bulk solution. Here, we report that adenosine diphosphate (ADP) in the presence of potassium phosphate (KPO) spontaneously generates ATP in water microdroplets under ambient conditions and without catalysts.
View Article and Find Full Text PDFArch Biochem Biophys
March 2025
Background: The significance of serine and glycine metabolism in cancer cells is increasingly acknowledged, yet the quantification of their metabolic flux remains incomplete, impeding a comprehensive understanding. This study aimed to quantify the metabolic flux of serine and glycine in cancer cells, focusing on their inputs and outputs, by means of Combinations of C-13 Isotopes Tracing and mathematical delineation, alongside Isotopically Nonstationary Metabolic Flux Analysis.
Results: In HeLa cells, serine uptake, the serine synthesis pathway (SSP), and other sources (e.
Cadmium (Cd) is a naturally occurring heavy metal found in the soil. However, its concentrations can be substantially increased by anthropogenic activities, presenting considerable environmental challenges. One effective remediation strategy is soil bioremediation, which employs indigenous bacteria to mitigate contamination.
View Article and Find Full Text PDFHydrolyases play an irreplaceable role in complex biological processes, and their dysfunction is a cause of many human diseases. Advanced activatable in situ fluorescence detection methods offer high-resolution spatiotemporal analysis, aiding in the dissection of the complex biological roles of hydrolases. However, current strategies typically focus on only specific stages of enzyme-probe interactions, leading to suboptimal imaging fidelity and sometimes erroneous detection results.
View Article and Find Full Text PDFSkeletal editing of heterocyclic building blocks offers an appealing way to expand the accessible chemical space by diversifying molecular scaffolds for drug discovery. Despite the recent boom in this area, catalytic strategies that directly introduce fluorine into the backbone of small-ring heterocycles remain rare owing to the challenges of strain-induced ring cleavage and defluorination. Here we describe a copper-catalysed approach for skeletal expansion of oxygen heterocycles by reaction with a difluorocarbene species generated in situ to induce carbon atom insertion.
View Article and Find Full Text PDFBackground: Stroke is a significant health threat, and its complex interplay with fractures warrants further investigation. Depression, a critical psychological mediator in various health conditions, may also play a role. This study aims to clarify the intricate relationships among stroke, depressive symptoms, and fracture risk, potentially informing more holistic clinical strategies.
View Article and Find Full Text PDFBackground: Most studies have evaluated sarcopenia and muscle health solely based on muscle mass. This study comprehensively examined the associations between eight inflammatory indicators and muscle mass and strength, with the aim of identifying an indicator capable of evaluating muscle health across multiple dimensions.
Methods: This study included 10,440 participants from the National Health and Nutrition Examination Survey (NHANES, 2011-2018) and 5,384 participants from NHANES (2011-2014).
As life becomes more stressful, neurological disorders, psychiatric disorders, and comorbidities of the two are becoming more and more of a concern. Multiple neuropsychiatric disorders share the same mental and somatic dysfunction and may involve common brain circuits and mechanistic targets. Music therapy, as an art form with proven efficacy, low cost and few side effects, is promoted for use in interventions for neuropsychiatric disorders.
View Article and Find Full Text PDFPer- and polyfluoroalkyl substances (PFAS) have been used as synthetic chemicals to create textured wetting-resistant surfaces, which have a broad range of applications including omniphobic membranes, self-cleaning textiles, and anticorrosion coatings. However, the high persistence, toxicity, and bioaccumulation potential of PFAS have led to rising public concerns and stringent regulations, especially after the U.S.
View Article and Find Full Text PDFHLA-DPA1*02:02:02:19 differs from HLA-DPA1*02:02:02:02 by one nucleotide change in intron 1.
View Article and Find Full Text PDFCaesappanols A-F (1-6), six undescribed phenolic compounds, including two dibenzofurans (1, 2), three biphenols (3-5), and one homoisoflavan (6), along with ten known compounds (7-16), were isolated from Sappan Lignum, the heartwood of Caesalpinia sappan L. Compounds 1 and 2 represent the initial discovery of dibenzofuran skeletons within this herb. Structural elucidation of these compounds was achieved through comprehensive analysis of 1D NMR, 2D NMR, and mass spectrometry data.
View Article and Find Full Text PDFAppl Environ Microbiol
February 2025
Quorum sensing systems, particularly autoinducer-2 (AI-2) signaling, have significant effects on bacterial colonization and virulence. However, how they affect intestinal colonization by pathogens and subsequent host immune responses remains unclear. Here, we investigated the influence of AI-2 signaling on the intestinal colonization ability of Z12 and the host's immune response.
View Article and Find Full Text PDFDNA G-quadruplexes (G4) are non-canonical DNA structures that play key roles in various biological processes. Antibody-dependent sequencing is an important tool for identifying intracellularly formed DNA G4s, and peak calling is a crucial step in processing the sequencing data. As the applicability of existing peak calling algorithms to intracellular G4 data has not been previously assessed, we systematically compared and evaluated these algorithms to determine those best suited for G4 detection.
View Article and Find Full Text PDFThe limited success of cancer immunotherapy has posed challenges in treating patients with cancer. However, promising strides could be made with a deeper understanding of the factors that cause T cell dysfunction within the tumor microenvironment and by developing effective strategies to counteract tumor-induced immune suppression. Here, we report that tumor-derived extracellular vesicles (tEVs) can induce senescence and suppression in T cells.
View Article and Find Full Text PDFIntroduction: Periodontitis and inflammatory bowel disease are chronic inflammatory diseases with shared epidemiological, biological, and therapeutic associations. Given the similarities in their pathogenic factors, this study hypothesized that mesalazine, a key treatment agent for inflammatory bowel disease, could also be effective in managing periodontitis.
Methods: The antimicrobial effect of mesalazine on was investigated , including observations of morphological changes on the surface of .
Gastric cancer (GC) is one of the most lethal malignancies due to high metastatic rate, making the identification of new therapeutic targets critical for developing effective anti-GC treatments. Glutathione peroxidase 4 (GPx4), a key regulator of ferroptosis and redox homeostasis, contributes to progression and influences patient survival. However, the molecular mechanism by which GPx4 drives GC progression has not been fully illuminated.
View Article and Find Full Text PDFSingle-pixel three-dimensional (3D) imaging is of great potential to the light detection and ranging (Lidar) system. Combining high-precision ranging with compressed sensing (CS) imaging enables the acquisition of high-resolution and accurate depth maps under non-scanning conditions. In this study, we present that a phase ranging system can be combined perfectly with the CS algorithm perfectly for real 3D imaging through only two reconstructions, along with high accuracy and fast depth measurement.
View Article and Find Full Text PDFFour pairs of previously undescribed enantiomers, including two pairs of dimeric phthalide-benzophenanthridine alkaloid and two pairs phthalides derivatives, corydecumbenpines A-D, were isolated from the rhizomes of Corydalis decumbens. Their planar structures were elucidated by extensive spectroscopic analysis including UV, IR, HRESIMS, 1D and 2D NMR. Optically pure compounds were obtained by chiral chromatography and their absolute configurations were determined by single-crystal X-ray crystallography and comparison of experimental and calculated ECD spectra.
View Article and Find Full Text PDFBackgroud: The ALMS1 gene is predominantly localized to cilia, particularly in the photoreceptor cells of the retina, auditory neurons, kidneys, and other ciliated structures. Pathogenic mutations in this gene cause Alstrom syndrome (AS), which is characterized by dilated cardiomyopathy, retinal degeneration, neurodeafness, and centripetal obesity. However, the genetic mechanism of the ALMS1 gene remains unclear.
View Article and Find Full Text PDFProgrammed cell death (PCD) is a vital biological process that is essential for regulating cell progression and tumor microenvironment. This study aimed to explore the relationship between PCD-related genes expression and prognosis in thyroid cancer (THCA), especially IL20RA, as a potential prognostic marker for THCA. Data from The Cancer Genome Atlas (TCGA) database was utilized to develop a PCD-related risk prediction model based on LASSO regression along with univariate Cox regression.
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