Anthropogenic noise pollution is increasingly acknowledged as a major threat to marine ecosystems, especially for sound-sensitive species, such as the large yellow croaker (). While the effects of underwater noise on fish behavior and physiology have been well-documented, its influence on oxygen metabolism across varying temperatures remains poorly understood. This study examines the impact of boat noise on the oxygen consumption rate (OCR) of juvenile large yellow croakers at different temperatures, a key factor in their metabolic activity.
View Article and Find Full Text PDFIn this work, an Eu coordination polymer () was synthesized by a single-crystal-to-single-crystal transformation based upon complex under the stimulation of water molecules ({[Eu(bpdc)(HO)]·4HO} (), {[Eu(bpdc)(HO)]·5HO} (), and Hbpdc = 2,2'-bipyridine-3,3'-dicarboxylic acid ligand). Complex exhibited considerable pH fluorescence stability in an aqueous solution. Notably, the experiment showed that complex achieved high selectivity and sensitivity for the detection of the notorious food additive melamine (MEL) through a significant fluorescence enhancement response; and yet complex had no fluorescent response with MEL.
View Article and Find Full Text PDFRationally designing the electrolyte system toward improving the electrochemical performance, especially the rate capability, of sodium ion batteries (SIBs) is very important for accelerating their large-scale commercialization. Herein, it is shown that by refining the molar ratio of two ether solvents, namely dimethoxyethane (DME) and 2-methyl tetrahydrofuran (MeTHF), a binary solvent electrolyte system forms a sodium ion solvation structure that facilitates high rate charge/discharge of hard carbon (HC) electrodes. It is demonstrated that the boosted rate capability can be attributed to the enhanced sodium ion transportation and desolvation kinetics, resulting from the participation of weak-coordinating MeTHF molecule with low steric hindrance in the sodium ion solvation sheath, which weakens the interaction between sodium ion and solvent molecules/anions through electron density regulation at the bond critical points (BCPs).
View Article and Find Full Text PDFAn electrochemical sensor is presented for the detection of the chloramphenicol (CAP) based on a bimetallic MIL-101(Fe/Co) MOF electrocatalyst. The MIL-101(Fe/Co) was prepared by utilizing mixed-valence Fe (III) and Co (II) as metal nodes and terephthalic acid as ligands with a simple hydrothermal method and characterized by SEM, TEM, XRD, FTIR, and XPS. Electrochemical measurements such as electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and differential pulse voltammetry (DPV) showed that bimetallic MIL-101(Fe/Co) had the faster electron transfer, larger electroactive area, and higher electrocatalytic activity compared with their monometallic counterparts due to the strong synergistic effect between bimetals.
View Article and Find Full Text PDFThe modification of thermoplastic polymers is frequently impeded by the inherent contradiction between their toughness and strength. In this study, an effective strategy to significantly improve the mechanical properties of ductile polymers by simply adding a complimentary rigid polymer is introduced. This work uses a semi-crystalline polymer aliphatic polyketone (POK) as the matrix material and a small quantity of polymethyl methacrylate (PMMA) as the rigid polymer, through establishing molecular chain entanglements at the interface to produce POK/PMMA blends with exceptional mechanical property.
View Article and Find Full Text PDFProbiotic foods are foods containing probiotics, including dairy and non-dairy products, that exert significant beneficial impacts on human health. Benefiting from the rapid progress in systems biology, diverse types of probiotics with prominent health-promoting functionalities are unraveled, albeit such functions could be substantially influenced by the stress environments. Here, we conducted a comprehensive review to characterize the state-of-the-art research on probiotic foods and specific probiotics employed in their production.
View Article and Find Full Text PDFSurface charge transfer doping (SCTD) has been established as an efficient strategy to achieve strong electronic coupling interactions between semiconductors and dopants, which lead to highly efficient electron transport over semiconductors. Herein, we report a facile, easily accessible, and effective SCTD strategy to exquisitely modulate the interfacial charge transfer over transition metal chalcogenides (TMCs: CdS, ZnCdS, CdInS, and ZnInS) through surface modification with a nonconjugated polymer, poly(dimethyldiallylammonium chloride) (PDDA). We provide evidence that PDDA, as a surface electron transfer acceptor, can be used to enable rapid, directional, and tunable charge transfer along with an optimal charge lifetime over TMCs in photoredox catalysis because of the high-efficiency electron-trapping property of quaternary ammonium functional groups in the molecular structure of PDDA.
View Article and Find Full Text PDFConsidering the close association between cardiac troponin I (cTnI) level and various cardiovascular diseases, it becomes essential to explore sensitive and accurate detection methods for monitoring their levels in the early stages of disease. In this work, a magnetic dual-aptamer electrochemical sensor for cTnI detection was constructed in the first utilizing MOF-on-MOF-derived electrocatalyst as a signal amplifier in collaboration with high-efficient separation of magnetic beads (MBs). Employing zeolitic imidazolate framework-67 (ZIF-67) with high surface area as host MOF, MOF-on-MOF heterostructure (ZIF-67@PBA) was facilely prepared by in-situ growth of conductive prussian blue analogue (PBA) as guest MOF onto the surface of ZIF-67 with a simple ion-exchange method.
View Article and Find Full Text PDFJ Colloid Interface Sci
February 2025
Parkinson's Disease (PD) stands as a prevalent neurodegenerative disorder. However, current pharmacotherapies for PD face challenges due to inadequate penetration through the blood-brain barrier (BBB), posing limitations on their therapeutic efficacy. Considering the potential of negatively charged carbon dots (CDs) in retaining functional groups from precursor molecules and vertically crossing the BBB, this study focuses on the utilization of fucoidan (FD), a promising pharmaceutical candidate with neuroprotective effects on dopamine-active neurons, for the development of negatively charged CDs through a one-step hydrothermal method, aiming to achieve efficient BBB penetration for PD treatment.
View Article and Find Full Text PDFIntroduction: One of the methods for pain management involves the use of local anesthesia, which numbs sensations in specific body regions while maintaining consciousness.
Objectives: Considering the certain limitations (e.g.
Objective: Improved understanding of metabolic obesity phenotypes holds great promise for personalized strategies to combat obesity and its co-morbidities. Such investigation is however lacking in Tibetans with unique living environments and lifestyle in the highlands. Effects of altitude on heterogeneous metabolic obesity phenotypes remain unexplored.
View Article and Find Full Text PDFCoFe@C was first prepared by calcining the precursor of CoFe-metal-organic framework-74 (CoFe-MOF-74), then an electrochemical sensor for the determination of neohesperidin dihydrochalcone (NHDC) was constructed, which was stemmed from the novel CoFe@C/Nafion composite film modified glassy carbon electrode (GCE). The CoFe@C/Nafion composite was verified by field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). Electrochemical impedance spectroscopy (EIS) was used to evaluate its electrical properties as a modified material for an electrochemical sensor.
View Article and Find Full Text PDFThis study aimed to investigate the selected anatomical factors that can potentially influence temporomandibular joint (TMJ) clicking in young adults by assessing TMJ structures and lateral pterygoid muscle (LPM) function using magnetic resonance imaging (MRI). The patients were divided into four groups: the healthy control group; the clicking on mouth opening group; the clicking on mouth closing group; and the clicking on mouth opening and closing group. Additionally, we used clinical palpation to evaluate the masticatory muscles' functional state and employed MRI using the OCOR-T1WI-FSE-CLOSED, OSAG-PDW-FSE-CLOSED, and OSAG-PDW-FSE-OPEN sequences to analyze the texture of the lateral pterygoid muscle (LPM).
View Article and Find Full Text PDFNumerous studies have investigated the immunomodulatory effects of yogurt, but the underlying mechanism remained elusive. This study aimed to elucidate the alleviating properties of yogurt on immunosuppression and proposed the underlying mechanism was related to the metabolite D-lactate. In the healthy mice, we validated the safety of daily yogurt consumption (600 μL) or D-lactate (300 mg/kg).
View Article and Find Full Text PDFPatched 1 (PTCH1) is the primary receptor for the sonic hedgehog (SHH) ligand and negatively regulates SHH signalling, an essential pathway in human embryogenesis. Loss-of-function mutations in PTCH1 are associated with altered neuronal development and the malignant brain tumour medulloblastoma. As a result of differences between murine and human development, molecular and cellular perturbations that arise from human PTCH1 mutations remain poorly understood.
View Article and Find Full Text PDFHeishunpian is obtained through complex processing of Aconiti lateralis radix praeparata. However, the impact of each processing step on chemical compositions and pharmacological activities is still unclear. The mechanism of the processing needs to be further studied.
View Article and Find Full Text PDFBackground And Purpose: Defective insulin signalling and dysfunction of the endoplasmic reticulum (ER), driven by excessive lipid accumulation in the liver, is a characteristic feature in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Thromboxane A (TXA ), an arachidonic acid metabolite, is significantly elevated in obesity and plays a crucial role in hepatic gluconeogenesis and adipose tissue macrophage polarization. However, the role of liver TXA /TP receptors in insulin resistance and lipid metabolism is largely unknown.
View Article and Find Full Text PDFLeptospirosis, caused by the spirochete bacteria , is a zoonotic disease of humans and animals, accounting for over 1 million annual human cases and over 60,000 deaths. We have characterized operon transcriptional units, identified novel RNA coding regions, and reported evidence of potential posttranscriptional polyadenylation in the transcriptomes for the first time using Oxford Nanopore Technology RNA sequencing protocols. The newly identified RNA coding regions and operon transcriptional units were detected only in the pathogenic transcriptomes, suggesting their significance in virulence-related functions.
View Article and Find Full Text PDFThe present study investigated the impact of standardized perioperative nursing management on improving outcomes in patients with peptic ulcer disease. A total of 90 patients with peptic ulcers were admitted to the Wuhan Wuchang Hospital between July 2020 to July 2022. These patients were included in the present study.
View Article and Find Full Text PDFShotgun metagenomic sequencing analysis is widely used for microbial profiling of biological specimens and pathogen detection. However, very little is known about the technical biases caused by the choice of analysis software and databases on the biological specimen. In this study, we evaluated different direct read shotgun metagenomics taxonomic profiling software to characterize the microbial compositions of simulated mice gut microbiome samples and of biological samples collected from wild rodents across multiple taxonomic levels.
View Article and Find Full Text PDFAberrant arachidonic acid metabolism has been implicated in multiple pathophysiological conditions, and the downstream prostanoids levels are associated with adipocyte dysfunction in obesity. However, the role of thromboxane A (TXA) in obesity remains unclear. We observed that TXA, through its receptor TP, is a candidate mediator in obesity and metabolic disorders.
View Article and Find Full Text PDFExcessive hepatic glucose production (HGP) is a major cause of fasting hyperglycemia in diabetes, and antihyperglycemic therapy takes center stage. Nonsteroidal anti-inflammatory drugs, such as acetylsalicylic acid (aspirin), reduce hyperglycemia caused by unrestrained gluconeogenesis in diabetes, but its mechanism is incompletely understood. Here, we reported that aspirin lowers fasting blood glucose and hepatic gluconeogenesis, corresponds with lower thromboxane A2 (TXA2) levels, and the hypoglycemic effect of aspirin could be rescued by TP agonist treatment.
View Article and Find Full Text PDFPhotoresponsive inhibitor and noninhibitor systems have been developed to achieve on-demand enzyme activity control. However, inhibitors are only effective for a specific and narrow range of enzymes. Noninhibitor systems usually require mutation and modification of the enzymes, leading to irreversible loss of enzymatic activities.
View Article and Find Full Text PDFThe interfacial migration of surface-bound ligands highly affects the colloidal stability and optical quality of semiconductor nanocrystals, of which the underlying mechanism is not fully understood. Herein, colloidal CsPbBr perovskite nanocrystals (PNCs) with fragile dynamic equilibrium of ligands are taken as the examples to reveal the important role of balancing ligand-solid/solvent affinity in suppressing the desorption of ligands. As a micellar surfactant, glycyrrhizic acid (GA) with bulky hydrophobic and hydrophilic groups exhibits a relatively smaller diffusion coefficient (∼440 μm/s in methanol) and weaker ligand-liquid affinity than that of conventional alkyl amine and carboxy ligands.
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