Publications by authors named "Xin Niu"

Flexible sensors have significant application potential in various areas, such as wearable devices, medical condition monitoring, and smart materials. However, these sensors mostly require integrated external electrodes, resulting in complex structures that limit flexibility and integration. This study integrates an in situ functional core as the electrode and a nanofiber sheath that serves dually as the sensing layer and ion transport channel, thereby simplifying the structural complexity of conventional multilayer sensors.

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Subjective well-being has been implicated in the regulation of aggressive behavior, potentially through its influence on mood and neural processing. However, the underlying neuropsychological mechanisms remain insufficiently understood. This study aimed to elucidate the neural correlates of subjective well-being and examine its potential association with aggression using a two-part investigation.

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Small extracellular vesicles (sEVs) have demonstrated significant therapeutic potential. However, the lack of efficient and scalable methods for sEV separation remains a critical barrier to their large-scale production as therapeutic agents. Tangential flow filtration (TFF) has emerged as a promising technique for large-scale sEV separation, but the absence of comprehensive and systematic studies makes it challenging to determine optimal TFF parameters for sEV isolation.

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Sea turtles are renowned "living fossils" and ideal flagship marine conservation species. Sea turtles display high fidelity to their nesting grounds, and the quality of nesting grounds is related to the survival of sea turtles, in which microbial diversity, abundance, and potential pathogens are important indicators for assessing the quality of nesting grounds. The Xisha Islands are the largest nesting grounds for green turtles () in China.

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The clinical translation of small extracellular vesicles (sEVs) as nanocarriers and therapeutic agents is severely hindered by their rapid clearance, leading to significant off-target effects. Polyethylene glycol (PEG) coating of sEVs provides a straightforward approach to address this challenge, yet it compromises their cellular internalization. To overcome this issue, we developed an acid-responsive PEG coating strategy for sEVs using 2,5-dihydroxy-4-methyl-2,5-dioxo-3-furanpropanoic acid (CDM)-modified methoxy PEG (mPEG-CDM).

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Social advancement and heightened waste discharge have resulted in escalating ammonia pollution in aquatic ecosystems, presenting toxicity hazards to aquatic fauna, especially turtles, by impairing their neurological function. To assess the ammonia effect on turtle brains, we subjected Chinese striped-necked turtles (Mauremys sinensis) to varying ammonia concentrations (CK, control; A1, 0.790 mg/L NH3; A2, 1.

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Globally, sea level rise (SLR) leads to salinization of coastal freshwater, in where organisms might be affected and in turn promote osmoregulation and adaptation in response to freshwater salinization. Trachemys scripta elegans a freshwater turtle species, exhibits remarkable tolerance to varying salinity environments, yet the underlying regulatory mechanisms remain poorly understood. This study aimed to elucidate the molecular mechanisms of osmoregulation in this species based on previous RNA-seq data.

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Fabric electrodes are an important part of long-term medical-health-monitoring garments, but sweat corrosion can greatly affect their longevity and stability. In this study, the metal fabric biopotential sensor was chemically modified with 3-mercaptopropyltrimethoxysilane (MPTS). Ag/AgCl was formed on the electrode surface by constant voltage deposition.

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Cortisol, also known as the stress hormone, is a crucial corticosteroid hormone that significantly increases secretion in the human body when facing notable stress. Monitoring cortisol levels is crucial for personal stress management and the diagnosis and treatment of certain diseases. Electrochemical biosensors combine the efficient sensitivity of electrochemical technology with the high specificity of biological recognition processes, making them widely applicable in the analysis of human body fluid components.

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A lactosylated and AIE-active multifunctional photosensitizer (Lac-TR) was synthesized. Lac-TR can self-assemble into fluorescent nanoparticles (Lac-TRs) to achieve fluorescence self-reporting during photodynamic therapy and induce pyroptosis under both normoxia and hypoxia to kill HepG2 cells.

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Article Synopsis
  • Hypomanic personality traits (HPT) are linked to higher risk for psychiatric disorders like bipolar disorder and are associated with aggressive behaviors, yet the underlying neuropsychological mechanisms are not fully understood.
  • The study used psychometric network analysis to identify key factors (Behavioral Inhibition System and mood volatility) that connect HPT to aggression, finding that mood volatility positively correlates with aggression, with BIS acting as a mediator.
  • Further imaging studies revealed distinct functions of the dorsal and ventral sensorimotor cortices in processing rewards, and resting-state imaging confirmed these regions' connections to different brain networks, highlighting the importance of these circuits in mediating the relationship between mood volatility, aggression, and BIS.
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Taurine is essential for sustaining the body's physiological equilibrium and is extensively utilized as a dietary supplement and immune system enhancer for aquatic creatures. The gut microbiota serves as a vital health indicator in animals. In this study, our goal was to evaluate the effects of dietary taurine on the gut microbiome of Chinese stripe-necked turtles ().

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Short video addiction (SVA) has emerged as a growing behavioral and social issue, driven by the widespread use of digital platforms that provide highly engaging, personalized, and brief video content. We investigated the neuroanatomical and functional substrates of SVA symptoms, alongside brain transcriptomic and cellular characteristics, using Inter-Subject Representational Similarity Analysis (IS-RSA) and transcriptomic approaches. Behaviorally, we found that dispositional envy was associated with SVA.

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The ethical issues surrounding sacrifice methods in animal experimentation have garnered increasing attention, making immobilization and sedation an integral part of the sacrifice process for experimental animals. Currently, internationally recognized general sacrifice methods for commonly used laboratory animals have been established, but there remains significant controversy over the sacrifice methods for turtles. To explore the effectiveness of various immobilization methods and their impact on stress-related indicators in turtles, this study used red-eared sliders (Trachemys scripta elegans) as subjects.

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Ubiquitination plays important roles in modulating the abiotic stress tolerance of plants. Drought seriously restricts agricultural production, but how ubiquitination participates in regulating drought tolerance remains largely unknown. Here, we identified a drought-inducible gene, MYB30-INTERACTING E3 LIGASE 1 (GhMIEL1), which encodes a RING E3 ubiquitin ligase in cotton (Gossypium hirsutum).

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Sea turtles, vital to marine ecosystems, face population decline. Artificial breeding is a recovery strategy, yet it risks introducing antibiotic resistance genes (ARGs) to wild populations and ecosystems. This study employed metagenomic techniques to compare the distribution characteristics of ARGs in the guts of wild and artificially bred green turtles (Chelonia mydas).

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Article Synopsis
  • Development of a non-sputum test for tuberculosis (TB) using lipoarabinomannan (LAM) biomarker concentrations in urine and blood samples was studied to improve diagnostic accuracy, particularly for individuals with and without HIV.
  • A diagnostic study in South Africa evaluated LAM levels in urine, plasma, and serum among adults with TB symptoms, finding urine LAM sensitivity of 62% and specificity of 99% using the S4-20 assay; higher sensitivity was observed in HIV-negative participants.
  • The findings suggest that while non-sputum specimens can detect LAM for TB diagnosis, improving analyte concentration or signal amplification may be necessary to meet
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Purpose Of Review: Adherence-concentration-efficacy benchmarks have not been fully characterized for cisgender women using emtricitabine/tenofovir disoproxil fumarate (FTC/TDF) oral daily pre-exposure prophylaxis (PrEP) for HIV prevention.

Recent Findings: We conducted a systematic review to investigate current evidence on the adherence-concentration-efficacy relationship of tenofovir-diphosphate (TFV-DP) derived from FTC/TDF PrEP in dried blood spots (DBS) and peripheral mononuclear cells (PBMC) in cisgender women without HIV, including during pregnancy. We searched for completed and ongoing studies published before May 2024 in PubMed, Embase, Cochrane Library, CINAHL, and clinicaltrial.

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Freshwater acidification (FA) has become a global environmental problem, posing a potential threat to freshwater ecosystems. The gut microbiota plays a crucial role in the host's response and adaptation to new environments. In this study, we investigated the changes in microbial communities in Red-eared slider () under acidic conditions to reveal the ecological impacts of acidification on freshwater turtles.

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Context: Coal water slurry (CWS) is a new type of liquid coal product with low pollution, which is mainly used in the chemical industry to produce syngas (CO + H). It is of great significance to study the microscopic mechanism of CWS gasification reaction for improving the efficiency of coal gasification. In this paper, the method of molecular dynamics based on reaction force fields (ReaxFF-MD) is used to study the gasification process of CWS/O system at different temperatures.

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Gut microbes are pivotal reference indicators for assessing the health status of animals. Before introducing artificially bred species into the wild, examining their gut microbe composition is crucial to help mitigate potential threats posed to wild populations. However, gut microbiological trait similarities between wild and artificially bred green turtles remain unexplored.

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Pluripotent stem cell-derived small extracellular vesicles (PSC-sEVs) have demonstrated great clinical translational potential in multiple aging-related degenerative diseases. Characterizing the PSC-sEVs is crucial for their clinical applications. However, the specific marker pattern of PSC-sEVs remains unknown.

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Background: The chondrogenic differentiation of mesenchymal stem cells (MSCs) to enhance cartilage repair and regeneration is a promising strategy to alleviate osteoarthritis (OA) progression.

Method: The potency of JD-312 in inducing chondrogenic differentiation of MSCs was assessed and verified. The efficacy of JD-312-treated MSCs was evaluated using a Sprague-Dawley rat DMM model.

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