Publications by authors named "Haiyan Mao"

A simple and innovative method was introduced for the production of green and recoverable flame-retardant cotton fabrics, where sulfonated cotton fabric (COT-SC) was synthesized by oxidizing cotton fabric with sodium periodate, followed by a sulfonation step with sodium bisulfite to provide active sites, which further chelated barium ions (Ba) to achieve flame retardancy. The morphological and structural characterizations of the fabricated cotton fabrics (COT-SC-Ba) demonstrated that the cleavage of C-C free hydroxy groups within the cellulose macromolecule was chemically modified for grafting a considerable number of sulfonic acid groups, and Ba ions were effectively immobilized on the macromolecule of the cotton fabric through a chelation effect. Results from cone calorimeter tests (CCTs) revealed that COT-SC-Ba became nonflammable, displayed a delayed ignition time, and decreased the values of the heat release rate (HRR), total smoke release (TSR), effective heat of combustion (EHC), and CO/CO ratio.

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Brominated flame retardants (BFRs) are environmental pollutants linked to health risks, including increased platelet (PLT) levels that may elevate the risk of thrombosis and cardiovascular diseases. This study examined the association between BFR exposure and PLT levels among 5831 adult participants from the National Health and Nutrition Examination Survey (NHANES) (2007-2016). Of the 12 BFRs analyzed, BB153, BDE17, BDE85, BDE154, BDE183, and BDE209 showed significant positive correlations with PLT levels (p < 0.

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The growth of complex organic macromolecular materials in solution is a pervasive phenomenon in both natural and synthetic systems, yet the underlying growth mechanisms remain largely unresolved. Using liquid-phase transmission electron microscopy (TEM), we elucidate the real-time growth pathways of covalent organic framework (COF) onion nanostructures, which involve graphitic layer formation, subsequent layer attachment, onion ring closure, and structural relaxation. This process is marked by variations in orientation and curvature, driven by the dynamic formation of the COF structure, which further regulates order-disorder transition and defect generation within the framework.

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  • Potato black scurf and tobacco target spot are caused by AG-3, which consists of three subgroups (PT, TM, and TB) that correspond to their host plants: potato, tomato, and tobacco.
  • A study analyzed 129 tobacco and 80 potato AG-3 isolates from various regions in China, finding that potato isolates belonged to the PT subgroup, while tobacco isolates were classified into TM and TB subgroups.
  • The research highlighted genetic variations among these subgroups, differences in their biological characteristics and pathogenicity, and noted that AG-3 PT showed the most somatic incompatibility, with distinct differences observed in colony color and morphology.
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Background: Telomere length is closely associated with the occurrence and development of cardiovascular and other diseases. Monocyte to high-density lipoprotein cholesterol ratio (MHR) is a novel indicator of inflammation, oxidative stress, and metabolic syndrome, with some predictive ability for related disease risks in clinical practice. However, there is no research on the correlation between these two factors.

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  • This study investigates the potential neurotoxic effects of aromatic amines (AAs), known carcinogens commonly found in industry and tobacco smoke, particularly their relationship with serum neurofilament light chain (sNfL), a biomarker for nerve injury.
  • Using data from the 2013-2014 National Health and Nutrition Examination Survey, the study analyzed 510 adults, finding that exposure to certain AAs, especially 2-Aminonaphthalene (2-AN), correlates with elevated sNfL levels, suggesting possible nerve damage.
  • While the study doesn’t establish a direct cause-and-effect relationship, it highlights the need for further research to understand the implications of
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  • - Asthma is a chronic inflammatory disease affecting millions, and recent research highlights the link between obesity, especially visceral adipose tissue (VAT), and inflammation, suggesting that higher VAT may worsen asthma symptoms.
  • - In a study using the NHANES database with over 11,000 participants, it was found that asthma patients had significantly higher levels of VAT (529 g) compared to non-asthmatic individuals (455 g), indicating a clear association.
  • - Multivariable regression analysis showed that a 200 g increase in VAT raised the likelihood of developing asthma by about 10.4% to 20.8%, with the strongest effects seen in females and those over 40 years old, revealing a J-shaped relationship
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  • Tobacco target spot, caused by the fungus Rhizoctonia solani, leads to significant leaf damage and reduced tobacco yield and quality.
  • In July 2022, samples showing this disease were collected from three different tobacco fields in China's Yunnan and Liaoning provinces, where approximately 30%-40% of the plants were affected.
  • The isolated strains were identified as R. solani AG1-IB through hyphal fusion reactions and genetic sequencing, which showed a high similarity to known AG1-IB strains in GenBank.
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2D conjugated covalent organic frameworks (c-COFs) provide an attractive foundation as organic electrodes in energy storage devices, but their storage capability is long hindered by limited ion accessibility within densely π-π stacked interlayers. Herein, two kinds of 2D c-COFs based on dioxin and dithiine linkages are reported, which exhibit distinct in-plane configurations-fully planar and undulated layers. X-ray diffraction analysis reveals wavy square-planar networks in dithiine-bridged COF (COF-S), attributed to curved C─S─C bonds in the dithiine linkage, whereas dioxin-bridged COF (COF-O) features densely packed fully planar layers.

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  • Endometriosis affects many reproductive-aged women, and while laparoscopic surgery is a common treatment, there's debate on whether to preserve or remove the ovaries during the procedure.
  • A study with 312 women compared outcomes between those who had ovarian preservation and those who underwent oophorectomy, focusing on pregnancy rates, time to pregnancy, and recurrence rates post-surgery.
  • Results showed that the ovarian preservation group had higher spontaneous pregnancy rates and shorter times to achieve pregnancy, but also a higher rate of disease recurrence compared to the oophorectomy group, with similar pain relief in both groups.
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  • The study focuses on enhancing CO electroreduction efficiency for producing valuable chemicals by improving catalyst performance at the triple-phase interface.
  • Researchers developed a new SnO catalyst with a nanoporous structure and an organic F-monolayer that minimizes unwanted hydrogen generation and boosts CO reduction selectivity to about 90%.
  • They utilized pulsed square-wave potentials to recover the catalyst's active phase, which allowed for better regulation of product formation while gaining insights into CO reduction mechanisms through in situ Raman spectroscopy.
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Background: Bilirubin is known for its multifaceted attributes, including antioxidant, anti-inflammatory, immunomodulatory, and antiapoptotic properties. The systemic immune-inflammation index (SII) is a recent marker that reflects the balance between inflammation and immune response. Despite the wealth of information available on bilirubin's diverse functionalities, the potential correlation between the total bilirubin (TB) levels and SII has not been investigated so far.

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Background: Noroviruses are the most frequent cause of epidemic acute viral gastroenteritis in China.

Objectives: The aim of this study was to determine the molecular epidemiological characteristics of norovirus outbreaks and the molecular genetic features of norovirus in Zhejiang Province during 2021.

Methods: First, the local Centers for Disease Control and Prevention in the outbreak area conducted on-site epidemiologic investigations and collected samples from ill patients for initial testing.

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  • Hand, foot, and mouth disease (HFMD) outbreaks in Jiashan between 2016 and 2022 were primarily caused by coxsackievirus A6 (CA6) and coxsackievirus A16 (CA16), with children aged 1-5 years being the most affected group.
  • The incidence of HFMD varied annually, peaking in the summer months, while urban areas reported higher infection rates than rural ones.
  • Genetic analysis of the viruses revealed notable genetic variations in CA16 and CA6, indicating potential links to increased infectivity, with phylogenetic data classifying CA16 into two distinct groups.
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  • A study evaluated the levels of neutralizing antibodies (nAbs) against SARS-CoV-2 and its variants in serum from 64 patients who had breakthrough infections post-vaccination.
  • Researchers analyzed 512 serum samples from unvaccinated individuals and those vaccinated with one, two, or three doses.
  • Findings showed that the neutralizing antibody levels against the Omicron variant were significantly lower than against the original strain, indicating increased immune evasion by Omicron XBB.1.16.
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Brominated flame retardants (BFRs) are a group of chemicals widely used in various applications to prevent or slow down the spread of fire. However, they have adverse effects on human health. There is a relative scarcity of population-based studies regarding BFRs, particularly their impact on the respiratory system.

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  • Real-time reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) is crucial for diagnosing COVID-19, specifically in detecting the SARS-CoV-2 virus.
  • The study examined how storage solutions, temperatures, and detection times impact the detection of SARS-CoV-2 nucleic acids using RT-qPCR, finding that these factors significantly affect the detection of the N gene, especially at high concentrations.
  • Ultimately, while storage conditions influence detection levels, they have minimal effects on the ORF gene, and the effect varies significantly with the viral concentration.
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Promoting the uptake of dyes is an important part of the sustainable processing of wool products. This study presents an effective modification approach to enhance the dyeability of wool fabric with adenosine triphosphate as an activator, 3-carboxyphenyl boronic acid as a ligand-binding agent, and chitin whisker as a couple agent. The structure and surface morphology of the as-prepared wool fabric was characterized in detail.

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This study aimed to explore the potential link between coffee and tea consumption and the risk of deep vein thrombosis (DVT) through Mendelian randomization (MR) analysis. Employing the MR, we identified 33 single nucleotide polymorphisms (SNPs) as instrumental variables (IVs) for coffee intake and 38 SNPs for tea intake. The investigation employed the inverse-variance weighted (IVW) method to evaluate the causal impact of beverage consumption on DVT risk.

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Waterborne polyurethanes (WPUs) often have limitations like inadequate weathering resistance and thermal stability. To overcome these shortcomings, lignin has been selected as a modifier for its abundant availability, renewability, and biocompatibility. This study synthesized a cationic WPU using isophorone diisocyanate and polyethylene glycol as raw materials.

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Nanoporous materials are of great interest in many applications, such as catalysis, separation, and energy storage. The performance of these materials is closely related to their pore sizes, which are inefficient to determine through the conventional measurement of gas adsorption isotherms. Nuclear magnetic resonance (NMR) relaxometry has emerged as a technique highly sensitive to porosity in such materials.

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Background: Klotho is an anti-aging protein that has multiple functions and may play a key role in the pathogenesis and progression of chronic respiratory diseases such as chronic obstructive pulmonary disease (COPD). Fractional Exhaled Nitric Oxide (FeNO) is a non-invasive and novel biomarker that has the advantages of being simple, fast and reproducible. It can effectively assess the degree of airway inflammation in diseases such as asthma and COPD.

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  • The Omicron variant of SARS-CoV-2 is highly infectious and can effectively evade both vaccine-induced and natural immunity.
  • Research was conducted on sera from both uninfected individuals and those recovering from breakthrough infections to assess their susceptibility to various subvariants, including BA.5.2.48 and XBB.1.16.
  • Findings indicate that the XBB.1.16 subvariant is particularly adept at overcoming immune defenses, and that heterologous vaccine boosters provide better protection than homologous ones.
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Introduction: Tumor immunotherapy has recently emerged as a crucial focal point in oncology treatment research. Among tumor immunotherapy approaches, tumor immune checkpoint inhibitors (ICIs) have attracted substantial attention in clinical research. However, this treatment modality has benefitted only a limited number of patients.

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