Publications by authors named "Xiao-Hui Chen"

In semiconductor catalysts, rational doping of nonmetallic elements holds significant scientific and technological importance for enhancing photocatalytic performance. Here, using a one-step hydrothermal technique, we synthesized iodine-doped BiOCl composite and evaluated the impact of iodine doping on its photocatalytic capability for organic dye degradation under visible light irradiation. In this study, we demonstrate that the introduction of iodide ions not only provides an ideal built-in electric field (BIEF) for BiOCl but also induces the generation of additional oxygen vacancies (OVs).

View Article and Find Full Text PDF

Electrocatalytic hydrogen production offers a promising solution to address current energy depletion. Herein, a RuNi/MoN heterostructure on carbon cloth (CC), RuNi/MoN@CC, was successfully constructed using a simple method, allowing for dual regulation of morphology and electronic structure. Under the influence of Ni, the in-situ generated MoN inherits the morphology of the NiMoO precursor, presenting a nanowire morphology, which is favorable for increasing electrochemical active area.

View Article and Find Full Text PDF

Aims: β3-Adrenergic receptor (β3-AR) is essential for cardiovascular homoeostasis through regulating adipose tissue function. Perivascular adipose tissue (PVAT) has been implicated in the pathogenesis of aortic dissection and aneurysm (AD/AA). Here, we aim to investigate β3-AR activation-mediated PVAT function in AD/AA.

View Article and Find Full Text PDF

Background: Limited evidence exists to support any specific medication over others to prevent dementia in older patients with type 2 diabetes (T2D). We investigated whether treatment with sodium-glucose cotransporter 2 (SGLT-2) inhibitors is associated with a lower risk of incident dementia and all-cause mortality, relative to dipeptidyl peptidase-4 (DPP-4) inhibitors and glucagon-like peptide-1 receptor agonists (GLP-1 RA).

Methods: In this retrospective, active-comparator cohort study, we used data from the TriNetX electronic health records network.

View Article and Find Full Text PDF
Article Synopsis
  • RuO is an effective electrocatalyst for the oxygen evolution reaction (OER) but suffers from stability issues due to oxidation leading to its dissolution.
  • A new bicomponent electrocatalyst combining NiO and RuO on carbon nanotubes (RuO/NiO/CNT) is introduced, which enhances RuO's stability during OER while maintaining its high performance.
  • Density functional theory (DFT) analysis reveals that NiO helps reduce the oxidation state of RuO by transferring electrons, ultimately improving the longevity of the catalyst during prolonged OER operation.
View Article and Find Full Text PDF
Article Synopsis
  • Efficient and stable hydrogen evolution electrocatalysts are crucial for advancing hydrogen production, but current methods face limitations due to separate use of interface and phase engineering.* -
  • The newly proposed CoMo/CoTe electrocatalyst features an amorphous CoMo layer encapsulating a crystalline CoTe array, which significantly enhances catalytic performance through optimized electronic structures.* -
  • Experimental findings and theoretical calculations indicate that this interface-engineered catalyst improves intermediate adsorption and lowers kinetic barriers, demonstrating excellent performance in various water environments.*
View Article and Find Full Text PDF
Article Synopsis
  • Developing low-cost and efficient catalysts to replace expensive noble metals is a key challenge in catalysis.
  • The Co-WC dual-component catalytic system exhibits impressive performance in hydrogen and oxygen evolution reactions, with specific overpotentials of 63 mV and 259 mV, respectively, and achieves overall water splitting at 1.53 V.
  • This performance is enhanced by electronic changes at the WC/Co interface, which improves the energetics for hydroxyl and hydrogen species, while the core-shell structure helps stabilize the material during reactions.
View Article and Find Full Text PDF

Seed metabolites are the combination of essential compounds required by an organism across various potential environmental conditions. The seed metabolites screening framework based on the network topology approach can capture important biological information of species. This study aims to identify comprehensively the relationship between seed metabolites and pathogenic bacteria.

View Article and Find Full Text PDF

Background: Intracranial atherosclerotic disease (ICAD) is one of the most common causes of ischemic stroke. The fetal-type posterior cerebral artery (FTP) affects intracranial collateral circulation, which is closely related to the occurrence and development of ICAD. Knowledge of the relationship between FTP and ICAD is important for developing treatment strategies for FTP patients diagnosed with atherosclerotic diseases.

View Article and Find Full Text PDF
Article Synopsis
  • Rapid compression experiments using a dynamic diamond anvil cell (dDAC) enable the study of material phase transitions at varying compression rates.
  • A new time-resolved Raman spectroscopy technique was developed to monitor structural changes in materials with subsecond resolution, improving over previous methods.
  • This technique successfully tracked phase transitions in three samples, offering a valuable alternative to x-ray diffraction for studying phase transition kinetics on longer time scales.
View Article and Find Full Text PDF

A mild chlorocyclization of pyrrole-tethered indoles has been realized using POCl as the chlorine source and tetramethylene sulfoxide as the promoter. A variety of chlorinated indolizino[8,7-]indole derivatives have been constructed efficiently under this reaction system in moderate to good yields (19 examples, up to 93% yield).

View Article and Find Full Text PDF

The postmortem interval (PMI) estimation is a key and difficult point in the practice of forensic medicine, and forensic scientists at home and abroad have been searching for objective, quantifiable and accurate methods of PMI estimation. With the development and combination of high-throughput sequencing technology and artificial intelligence technology, the establishment of PMI model based on the succession of the microbial community on corpses has become a research focus in the field of forensic medicine. This paper reviews the technical methods, research applications and influencing factors of microbial community in PMI estimation explored by using high-throughput sequencing technology, to provide a reference for the related research on the use of microbial community to estimate PMI.

View Article and Find Full Text PDF

Background: Previous studies have reported that puerarin possesses cardioprotective, vasodilatory, anti-inflammatory, anti-apoptotic, and hypoglycemic properties. However, the impact of puerarin on sepsis-associated encephalopathy (SAE) remains unexplored. In this study, we explored whether puerarin can modulate microglia-mediated neuroinflammation for the treatment of SAE and delved into the underlying mechanisms.

View Article and Find Full Text PDF

Purpose: To investigate the differences in intracranial culprit plaque characteristics of the middle cerebral artery (MCA), collateral circulation and hypoperfusion in patients with and without recurrent ischemic stroke and to identify the association with the recurrent ischemic cerebrovascular events.

Method: Eighty-six patients with acute/subacute ischemic stroke caused by atherosclerotic plaques of the MCA were retrospectively enrolled and grouped into patients with recurrence (n = 36) and without recurrence (n = 50). All patients underwent high-resolution vessel wall imaging and dynamic susceptibility contrast-enhanced perfusion weighted imaging.

View Article and Find Full Text PDF

Benzylation of pyrrolo[2,1-]isoquinoline derivatives has been realized with various phenols by the use of ammonium acetate as a promoter (20 examples, up to 84% yield). DMSO served as the source of methylene and solvent. The employment of iron chloride as a catalyst can also afford the desired benzylated products in moderate to good yields (11 examples, up to a 74% yield).

View Article and Find Full Text PDF

The rational design of electrocatalysts with exceptional performance and durability for hydrogen production in alkaline medium is a formidable challenge. In this study, we have developed in-situ activated ruthenium nanoparticles dispersed on NiN nanosheets, forming a bifunctional electrocatalyst for hydrogen evolution and urea oxidation. The results of experimental analysis and theoretical calculations reveal that the enhanced hydrogen evolution reaction (HER) performance of O-Ru-NiN stems primarily from the optimized hydrogen adsorption and hydroxyl adsorption on Ru sites.

View Article and Find Full Text PDF

Studying interfacial charge transfer is of great significance for the preparation of electrocatalysts with high activity for the hydrogen evolution reaction (HER). Particularly, exploring the in-depth catalytic mechanisms and facile fabrication methods of narrow bandgap metal phosphides remains worthwhile. This work successfully combined catalytically inert n-type NbO with p-type CoP to prepare a p-n heterojunction (CoP-NbO).

View Article and Find Full Text PDF

We have developed an efficient chlorination of pyrrolo[2,1-]isoquinoline derivatives using POCl as the chlorine source and tetramethylene sulfoxide as a promoter. A series of pyrrolo[2,1-]isoquinolines, polysubstituted pyrroles, and naphthols have been readily chlorinated under mild reaction conditions (26 examples, up to >99% yield). AcCl can also act as the chlorine source competently in this chlorination reaction.

View Article and Find Full Text PDF

Transporters are the main determinant for pharmacokinetics characteristics of drugs, such as absorption, distribution, and excretion of drugs in humans. However, it is difficult to perform drug transporter validation and structure analysis of membrane transporter proteins by experimental methods. Many studies have demonstrated that knowledge graphs (KG) could effectively excavate potential association information between different entities.

View Article and Find Full Text PDF

We have developed a mild sulfenylation of pyrrolo[2,1-]isoquinolines with acetyl bromide and dimethyl sulfoxide. A wide range of functionalized pyrrolo[2,1-]isoquinolines could be prepared efficiently through the formation of a C-S bond with thiophenols (27 examples, 36-94% yields). The current strategy can also be utilized for functionalization of pyrrolo[1,2-]quinolines and indole.

View Article and Find Full Text PDF

Fracture healing is a rigorous and orderly process with multiple steps that are mediated by multiple cells. During this process, osteoclast-mediated bone remodeling plays a critical role, and its abnormal activity leads not only to fracture susceptibility but also to impaired fracture healing. However, few studies have focused on impaired healing caused by osteoclast defects, and clinical drugs for this type of impaired fracture healing are still lacking.

View Article and Find Full Text PDF

Two novel strains GSK1Z-4-2 and MQZ15Z-1 were isolated from branches of mangrove plants collected from Guangxi Zhuang Autonomous Region, China. Both strains were Gram-negative, aerobic, non-flagellated and non-spore-forming bacteria. The comparison of 16S rRNA gene sequences initially indicated that the two strains were assigned to the genus Ancylobacter with sharing the highest similarity to Ancylobacter pratisalsi DSM 102029 (97.

View Article and Find Full Text PDF

We have successfully modified a series of pyrrolo[2,1-]isoquinolines via direct nitration under mild reaction conditions. Easily accessible nitrates including CAN, Cu(NO)·HO, and Fe(NO)·9HO all can serve as effective nitrating reagents for functionalizing pyrrolo[2,1-]isoquinolines. Various nitro-bearing pyrrolo[2,1-]isoquinolines have been efficiently prepared in acceptable to good yields.

View Article and Find Full Text PDF

A endospore-forming bacterium, designated strain KQZ6P-2, was isolated from surface-sterilized bark of the mangrove plant , collected from Maowei Sea Mangrove Nature Reserve in Guangxi Zhuang Autonomous Region, China. Strain KQZ6P-2 was able to grow at NaCl concentrations in the range of 0-3 % (w/v) with optimum growth at 0-1 % (w/v) NaCl. Growth occurred at 20-42 °C (optimal growth at 30-37 °C) and pH 5.

View Article and Find Full Text PDF

Neijiang (NJ) and Yacha (YC) are two indigenous pig breeds in the Sichuan basin of China, displaying higher resistance to diseases, lower lean ratio, and slower growth rate than the commercial Western pig breed Yorkshire (YS). The molecular mechanisms underlying the differences in growth and development between these pig breeds are still unknown. In the present study, five pigs from NJ, YC, and YS breeds were subjected to the whole genome resequencing, and then the differential single-nucleotide polymorphisms (SNPs) were screened using a 10-kb window sliding in 1-kb step using the F method.

View Article and Find Full Text PDF