Publications by authors named "Liuyan Zhou"

Background: Sepsis is a significant contributor to both intensive care unit (ICU) admissions and mortality among patients in ICU, with a rising prevalence of obesity. There is a lack of extensive research on the correlation between TyGI and findings in patients with sepsis, especially in obese patients.

Methods: This study used a retrospective cohort design and included patients with sepsis (≥18 years) from the Medical Information Mart for Intensive Care IV database.

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The effects of microbial agents on nitrogen (N) conversion during cotton straw composting remains unclear. In this study, inoculation increased the germination index and total nitrogen (TN) by 24-29 % and 7-10 g/kg, respectively. Inoculation enhanced the abundance of nifH, glnA, and amoA and reduced that of major denitrification genes (nirK, narG, and nirS).

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Article Synopsis
  • Smart theranostic nanoprobes combine imaging and therapy to improve tumor diagnosis and treatment but face challenges in performance due to the complexity of integrating multiple agents.
  • Researchers introduced innovative three-in-one silver sulfide (AgS) quantum dot-based nanoprobes that utilize ratiometric NIR-II fluorescence imaging for better accuracy in detecting tumors and simultaneously deliver effective combination therapy.
  • The AgS QDs degrade in acidic tumor environments, releasing toxic agents and enhancing the imaging process, demonstrating a promising approach for developing reliable theranostic tools in cancer treatment.
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The sensing sensitivity was improved for silver nanoparticles (AgNPs)-based colorimetric biosensors by using the most suitable salt to induce AgNPs aggregation. As for the salt composed of low-affinity anion and monovalent cation, the cation-dependent charge screening effect was the driving force for AgNPs aggregation. Apart from the charge screening effect, both the bridging of multivalent cation to the surface ligand of AgNP and the interaction between anion and Ag contributed to inducing AgNPs aggregation.

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By integrating near-infrared (NIR) light-dependent optical control and DNA walkers-based signal amplification, upconversion luminescence-activated DNA nanomachines hold great potential in conducting an analysis. For the typical DNA nanomachines, the immobile multivalent recognition interface greatly compromised the reaction kinetics and amplification efficiency due to the cleavage-dependent response mode. In this work, novel upconversion luminescence-activated DNA nanomachines with a fluid multivalent recognition interface were reported for rapid and sensitive imaging.

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The control of , a major pest of maize in Xinjiang, is challenging owing to the occurrence of resistant individuals. Entomopathogenic fungi (EPF) are natural insect regulators used as substitutes for synthetic chemical insecticides. The fungus is highly pathogenic to ; however, its virulence characteristics have not been identified.

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Unlabelled: Many marine bacteria are difficult to culture because they are dormant, rare or found in low-abundances. Enrichment culturing has been widely tested as an important strategy to isolate rare or dormant microbes. However, many more mechanisms remain uncertain.

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Inoculation with exogenous microbial agents is a common method to promote organic waste degradation and improve the quality of compost. However, the biotic effects of different microbial agents are often quite different. To evaluate the potential effects of a complex bacterial agent comprised of three strains (belonging to and ) on lignocellulose degradation and the underlying microbial mechanisms during cow dung composting, two lab-scale composting experiments, a control and a bacterial inoculation treatment, were established.

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Upconversion nanoparticles enable indirect activation of photodynamic therapy (PDT) using near-infrared (NIR) light, providing an excellent alternative for treating deep tumors. However, conventional NIR light-triggered PDT systems suffered from low spatiotemporal accuracy and restricted therapeutic efficiency . In this work, DNA logic circuits were functionally modified on down/upconversion nanoparticles (D/UCNPs) to construct smart down/upconversion nanomachines (D/UCNMs) for NIR light-triggered PDT toward target tumors.

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(KP, ) is one of the most important nosocomial pathogens that cause severe respiratory infections. As evolutionary high-toxic strains with drug resistance genes increase year by year, the infections caused by it are often accompanied by high mortality, which may be fatal to infants and can cause invasive infections in healthy adults. At present, the traditional clinical methods for detecting are cumbersome and time-consuming, and the accuracy and sensitivity are not high.

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Tumor microenvironment-mediated ratiometric second near-infrared (NIR-II) fluorescence imaging and photodynamic therapy contribute to accurate diagnosis and highly efficient therapy of deep tumors. However, it is challenging to integrate these functions into one nanodrug due to the difficulty in preparing triple-emission nanoprobes. In this work, single-excitation triple-emission (wavelength at 660, 1060, and 1550 nm) down-/up-conversion nanoassemblies were prepared by conjugating dual-ligands-stabilized gold nanoclusters (AuNCs) into down-/up-conversion nanoparticles (D/UCNPs), which simultaneously realized ratiometric NIR-II fluorescence imaging and chemo-/photodynamic combination therapy toward tumors upon exposure to an 808 nm laser.

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Here, a "chemical unit co-substitution" method is used to improve the near-infrared (NIR) emission of phosphors, using [Zn-Ge] to co-substitute [Ga-Ga] sites to reduce crystal field splitting to affect the structure of gallium oxide. A series of broadband NIR phosphors are synthesized by a high-temperature solid-phase method, and their phase structures, crystal structures, morphologies, diffuse reflectance spectra, and luminescence lifetimes are investigated. The Ga(Zn-Ge)O:0.

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Slow intermolecular collisions and "always active" responses compromise the amplification efficiency and response accuracy of nonenzymatic hybridization chain reaction (HCR). In this study, a photoactivatable membrane-oriented HCR (MOHCR) system was rationally designed by binding a photocleavable initiator probe onto a target protein and then anchoring cholesterol-modified hairpin-structure fuel probes. When irradiated, the bound initiator probe was photoactivated and initiated self-assembly to generate activatable and amplified imaging.

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The Gram-staining negative, oxidase and catalase negative strain KC-ST17, isolated from saline-alkali land, was characterized using a polyphasic approach to determine its taxonomic position. Using 16S rRNA gene sequence analysis, the highest similarity of strain KC-ST17 was found with Nitratireductor pacificus CCTCC AB 209302 (97.2%).

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Aims: This study aimed to isolate and identify entomopathogenic fungi (EPF) from fungus-infected Ostrinia furnacalis larvae, screen their bio-efficacy against O. furnacalis, and select the most suitable virulent native EPF for biocontrol agent development.

Methods And Results: The occurrence of EPF isolated from various maize production regions in Xinjiang was investigated.

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Down/upconversion CaAlZnO inorganic phosphors codoped with Ti/Eu or Yb/Er were prepared. The crystal structure and downconversion luminescence properties of CaAlZnO:Ti, Eu phosphors were studied in detail. Ti and Eu occupied Al and Ca sites in the host lattice, respectively.

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A novel bacterial strain, TLK-CK17, was isolated from cow dung compost sample. The strain was Gram-staining negative, non-gliding rods, aerobic, and displayed growth at 15-40 °C (optimally, 35 °C), with 0-5.0% (w/v) NaCl (optimally, 0.

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Aerobic composting is an efficient and environmentally friendly method of converting organic waste into nontoxic fertilizers or soil quality enhancers. The quality of the resultant compost depends greatly upon the composition of the substrate used. The initial carbon-to-nitrogen (C/N) ratio of the substrate is an important factor affecting the composting process.

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Polychromatic emission can be achieved by controlling the distribution of the rare earth activator in multi-cation lattices, which can be used in the fields of white light LED and fluorescence temperature sensing. However, it is still a challenge to control their distribution and location of the target site in a given host material because the distribution of the rare earth activator is uncertain. In this paper, we have chosen LiSrCa(SiO) as the multi-cation site host and induced the distribution of Eu ions between different cation sites through anion substitution, for the first time, to regulate the luminescence characteristics of a series of LiSrCaSiON:Eu phosphors.

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The ongoing COVID-19 pandemic constitutes a new challenge for public health. Prevention and control of infection have become urgent and serious issues. To meet the clinical demand for higher accuracy of COVID-19 detection, the development of fast and efficient methods represents an important step.

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is widespread and ecologically important in various anoxic environments. However, the portion of culturable bacteria within this phylum is quite low and, in fact, there is only one currently described species. In this study, a novel anaerobic, non-motile, coccoid, Gram-stain-negative bacterial strain, designated S-5007, was isolated from surface marine sediment.

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A Gram-stain-negative, aerobic, non-motile, non-gliding, yellow-pigmented and rod-shaped bacterial strain, designated 1KV19, was isolated from a surface sediment sample collected near a bay in the Arctic. Growth of strain 1KV19 occurred in 1-4 % (w/v) NaCl (optimum, 2 %), at 4-35 °C (optimum, 25-30 °C) and at pH 6.5-8.

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A taxonomic study was carried out on strain SH27, which was isolated from seawater collected around Xiaoshi Island, PR China. Cells of strain SH27 were Gram-stain-negative, non-motile, rod-shaped, orange-pigmented and grew at 15-37 °C (optimum, 28 °C), at pH 6.0-8.

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A Gram-stain-positive, motile, facultatively anaerobic, non-sporing, and rod-shaped bacterial strain, designated HF60, was isolated from the Red Maple Lake of Guizhou Province, China. The DNA G+C content of the strain HF60 was 55.0 %.

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A Gram-stain-positive, facultatively anaerobic bacterium, strain JDX10, was isolated from a soil sample of Fildes Peninsula, Antarctica. Cells of the strain were irregular rod-shaped and non-motile. Cells grew at 4-40 °C (optimum, 28 °C), at pH 6.

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