Small urban lakes are recognized as significant sources of nitrous oxide (NO) to the atmosphere. Despite the crucial role of aquatic plants in landscape construction and pollutant removal within urban lakes, the modulation of NO emission dynamics and associated mechanisms by these plants remains elusive. This study investigated the NO concentrations and fluxes from aquatic habitats covered with seven species of aquatic plants in a small urban lake, and estimated the contribution of plant-mediated NO emissions.
View Article and Find Full Text PDFBackground: Despite several markers being evaluated and available in recent years, diagnosing periprosthetic joint infection (PJI) remains challenging. There is a pressing need to explore reliable, economical, convenient, highly sensitive, and specific diagnostic biomarkers to diagnose PJI. This study aimed to investigate the diagnostic value of combined serum markers with CRP and ESR in PJI.
View Article and Find Full Text PDFBackground: Periprosthetic joint infections (PJIs) are a significant complication following total hip arthroplasty, impacting patient health and healthcare costs. This study examines the incidence of acute kidney injury (AKI) in patients undergoing hip PJI treatment with a combination of intravenous and intra-articular antibiotic infusion therapies.
Methods: A retrospective review of 151 patient records from May 1, 2010 to December 30, 2022 was conducted at a single academic hospital.
A post-transition state surface intersection (PTSSI) between radical and zwitterionic states that causes a bifurcation in the reaction pathway was discovered through density functional theory calculations on potential energy surfaces and ab initio molecular dynamics simulations of cycloadditions between a bicyclobutane and a triazolinedione (BCB-TAD). It was predicted that changes to the solvent polarity would enable control over the dynamic selectivity in this system; indeed, experimental evidence supported this prediction. This work not only provides new insights into an unusual type of post-transition state bifurcation, but also demonstrates how the nonstatistical dynamic effects that control selectivity for such reactions can be manipulated rationally to increase the yields of synthetically useful reactions.
View Article and Find Full Text PDFCO capture and separation from natural and fuel gas are important industrial issues that refer to the control of CO emissions and the purification of target gases. Here, a novel non-planar g-CN monolayer that could be synthesized the supramolecular self-assembly strategy was identified using DFT calculations. The cohesive energy, phonon spectrum, BOMD, and mechanical stability criteria confirm the stability of the g-CN monolayer.
View Article and Find Full Text PDFWe report three new ketomemicin pseudopeptides (-) from extracts of the marine actinomycete strain CNY-498. Their constitution and relative configuration were elucidated using NMR, mass spectrometry, and quantum chemical calculations. Using GNPS molecular networking and publicly available LCMS datasets, five additional ketomemicin analogs (-) were identified with ketomemicin production detected broadly across species.
View Article and Find Full Text PDFIn this work, a dual-signal ratiometric electrochemical aptasensor based on the hybrid chain reaction (HCR) and streptavidin-modified magnetic beads (SA-MBs) was developed to rapidly detect zearalenone (ZEN). The HCR, as a powerful signal amplification technique to imporve the signal of sonser. When the target is present, they specifically bind with ZEN-Apt and release ZEN-cDNA to trigger HCR.
View Article and Find Full Text PDFBackground: Rheumatoid arthritis (RA) is partially affected by the integrity of the intestinal barrier. Licorice (GC), a medicinal and food-related herb, exhibits potent anti-inflammatory activity; however, studies on its mechanisms of action in RA are limited.
Method: Using a bovine type-II collagen-induced arthritis rat model, this study examined how GC influences the gut-joint axis to decrease RA.
Aims: We aimed to determine the concentrations of synovial vancomycin and meropenem in patients treated by single-stage revision combined with intra-articular infusion following periprosthetic joint infection (PJI), thereby validating this drug delivery approach.
Methods: We included 14 patients with PJI as noted in their medical records between November 2021 and August 2022, comprising eight hip and seven knee joint infections, with one patient experiencing bilateral knee infections. The patients underwent single-stage revision surgery, followed by intra-articular infusion of vancomycin and meropenem (50,000 µg/ml).
Density functional theory computations were used to model the formation and rearrangement of the barbaralyl cation (CH ). Two highly delocalized minima were located for CH , one of symmetry and the other of symmetry, with the former having lower energy. Quantum chemistry-based NMR predictions affirm that the lower energy structure is the best match with experimental spectra.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2024
Metal-organic frameworks (MOFs) have attained broad research attention in the areas of sensors, resistive memories, and optoelectronic synapses on the merits of their intriguing physical and chemical properties. In this review, recent progress on the synthesis of MOFs and their electronic applications is introduced and discussed. Initially, the crystal structures and properties of MOFs encompassing optical, electrical, and chemical properties are discussed in brief.
View Article and Find Full Text PDFOver the past decades, tactile sensing technology has made significant advances in the fields of health monitoring and robotics. Compared to conventional sensors, self-powered tactile sensors do not require an external power source to drive, which makes the entire system more flexible and lightweight. Therefore, they are excellent candidates for mimicking the tactile perception functions for wearable health monitoring and ideal electronic skin (e-skin) for intelligent robots.
View Article and Find Full Text PDFPurpose: The primary objective of this investigation is to systematically screen and identify differentially expressed proteins (DEPs) within the plasma of individuals afflicted with sepsis. This endeavor employs both Data-Independent Acquisition (DIA) and enzyme-linked immunosorbent assay (ELISA) methodologies. The overarching goal is to furnish accessible and precise serum biomarkers conducive to the diagnostic discernment of sepsis.
View Article and Find Full Text PDFThe article delves into the intricate phase transitions of 1-Octadecanol and n-Nonadecane within a binary system, unveiling dynamic structural changes under varying conditions. Through Fourier transform infrared (FTIR) analysis, specific molecular vibrations were identified, shedding light on the molecular composition and interactions. The study highlights the challenges in detecting subtle phase transitions and emphasises the individuality of molecular behaviours in closely related compounds.
View Article and Find Full Text PDFIn this study, once-daily extended-release tablets with dual-phase release of oseltamivir phosphate were developed for the treatment of influenza. The goal was to improve patient adherence and offer more therapeutic choices. The tablets were manufactured using wet granulation, bilayer tablet compression, and enteric membrane-controlled coating processes.
View Article and Find Full Text PDFSelective functionalization of the indole-C3-C bond with aromatic/heteroaromatic 1,2-diketones has been uncovered for the first time. Cobalt catalyst was found to be an effective catalyst for this unusual transformation. This -C-C bond functionalization occurred in the presence of easily available weakly coordinating groups such as ketone and ester.
View Article and Find Full Text PDFAngiotensin-converting enzyme 2 (ACE2) is the receptor that enables SARS-CoV-2 to invade host cells. Previous studies have reported that reducing ACE2 expression may have an anti-SARS-CoV-2 effect. In this study, we constructed a pGL4.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
June 2024
Fleas, one of the most significant ectoparasites, play a crucial role as vectors in spreading zoonotic diseases globally. The Qinghai Province, as part of the Qinghai-Tibet Plateau, is one of the provinces in China with the largest number of flea species. In this study, we characterized the microbial communities of eighty-five adult fleas, belonging to nineteen species within four families (Ceratophyllidae, Ctenophthalmidae, Leptopsyllidae, and Pulicidae).
View Article and Find Full Text PDFContributions from quantum mechanical tunneling to the rates of several radical coupling reactions between carbon sp centers used as key steps in natural product total syntheses were computed using density functional theory. Contributions ranging from ∼15-52% from tunneling were predicted at room temperature, thereby indicating that tunneling plays an important role in the rates of these reactions and should perhaps be considered when designing complex synthetic schemes.
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