Structural reconstruction of electrocatalysts plays a pivotal role in catalytic performances for CO reduction reaction (CORR), whereas the behavior is by far superficially understood. Here, we report that CO accessibility results in a universal self-adaptive structural reconstruction from CuO to Cu@CuO composites, ending with feeding gas-dependent microstructures and catalytic performances. The CO-rich atmosphere favors reconstruction for CORR, whereas the CO-deficient one prefers that for hydrogen evolution reaction.
View Article and Find Full Text PDFPropane dehydrogenation (PDH) is a crucial approach for propylene production. However, commonly used CrO-based catalysts have issues including easy sintering at elevated reaction temperatures and relying on high acidity supports. In this work, we develop a strategy, to strongly anchor and isolate active sites against their commonly observed aggregation during reactions, by taking advantage of the net trap effect in chromate intercalated Zn-Cr layered hydroxides as precursors.
View Article and Find Full Text PDFTo investigate the cell-cell interactions of intergeneric bacterial species, the study detected the survival of Enterococcus faecalis (Ef) under monospecies or coaggregation state with Fusobacterium nucleatum subsp. polymorphum (Fnp) in environmental stress. Ef and Fnp infected the human macrophages with different forms (Ef and Fnp monospecies, Ef-Fnp coaggregates, Ef + Fnp cocultures) for exploring the immunoregulatory effects and the relevant molecular mechanisms.
View Article and Find Full Text PDFIntroduction: Acupoint localization is integral to Traditional Chinese Medicine (TCM) acupuncture diagnosis and treatment. Employing intelligent detection models for recognizing facial acupoints can substantially enhance localization accuracy.
Methods: This study introduces an advancement in the YOLOv8-pose keypoint detection algorithm, tailored for facial acupoints, and named YOLOv8-ACU.
Purpose: To explore differences in the subgingival microbiome according to the presence of periodontitis and/or type 2 diabetes mellitus (T2D), a metagenomic sequencing analysis of the subgingival microbiome was performed.
Methods: Twelve participants were divided into 4 groups based on their health conditions (periodontitis, T2D, T2D complicated with periodontitis, and generally healthy). Subgingival plaque was collected for metagenomic sequencing, and gingival crevicular fluids were collected to analyze the concentrations of short-chain fatty acids.
Spectrochim Acta A Mol Biomol Spectrosc
December 2022
Simultaneous measurement of HO/HO, HO/HO, and HDO/HO in air with a compact spectrometer based on a mid-infrared distributed feedback (DFB) laser was described. The obtained mixing ratios of HO, HO, and HO agreed reasonably well with those measured by a hygrometer. The precision and repeatability of the spectrometer were analyzed.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2022
Interspecies coaggregation promotes transcriptional changes in oral bacteria, affecting bacterial pathogenicity. () and () are common oral inhabitants. The present study investigated the transcriptional profiling of and subsp.
View Article and Find Full Text PDFWe report the construction of In(2)O(3)/Ag/In(2)O(3) sandwich nanostructures and realization of effective coupling with surface plasmon (SP) modes. An enhancement of photoluminescence as large as 278-fold is achieved for the new nanostructures, while only eightfold is obtained from bilayer structures. The advancement of the nanostructures is that both the frequency of incidence photons and the in-plane wavevector of the excited SP modes along each side of the sandwiched nanometer metal layer are identical, thus the momenta mismatch between two SP modes which inevitably occurs in commonly used metal/dielectric bilayer structures is no longer a problem.
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