The design and synthesis of hollow-nanostructured transition metal oxide-based anodes is great importance for long-term operation lithium ion batteries. Herein, we report a two-step calcination strategy to fabricate hollow Co3O4 nanoparticles embedded in N,S-co-doped reduced graphene oxide framework. In the first step, core-shell-like Co@Co3O4 synthesized by pyrolysis Co-based organic framework/graphene precursor an inert atmosphere at 800 °C. designed with average particle size 25 nm wall...

Colorectal cancer (CRC) is the third most common worldwide. Its incidence still increasing, and mortality rate high, for which new therapeutic prognostic strategies are urgently needed. It became increasingly recognized that gut microbiota composition differs significantly between healthy people CRC patients. Thus, identifying difference of patients fundamental to understand microbes' functional roles in development CRC. We analyzed microbial community structure a metagenomic dataset 156...

Abstract Achieving photothermal therapy (PTT) at ultralow laser power density is crucial for minimizing photo‐damage and allowing higher maximum permissible skin exposure. However, this requires agents to possess not just superior conversion efficiency (PCE), but also exceptional near‐infrared (NIR) absorptivity. J ‐aggregates, exhibit a significant redshift narrower absorption peak with extinction coefficient. Nevertheless, achieving predictable ‐aggregates through molecular design remains...

Abstract An aza‐BODIPY dye 1 bearing two hydrophobic fan‐shaped tridodecyloxybenzamide pendants through 1,2,3‐triazole linkages was synthesized by a click reaction and characterized. H NMR studies indicated that exhibited variable conformations intramolecular H‐bonding interaction, which is beneficial for the polymorphism of aggregation. The thermodynamic, structural, kinetic aspect supramolecular polymerization investigated UV/Vis absorption spectroscopy, IR AFM, TEM, SEM. Biphasic...

The development of polymer electrolyte membrane electrolysis water is mainly limited by the high cost noble metals and inadequate stability owing to slow reaction kinetics oxygen evolution restrictions strongly acidic operating environments. To improve utilization metals, we use Ti-doped SnO2 as a carrier support active species IrO2. results show that introduction Ti element can inhibit grain growth help electrical conductivity SnO2. Electrochemical tests for catalysts 40 wt % IrO2/TSO has...

Abstract Stable, efficient, and economical bifunctional electrocatalysts for oxygen evolution reaction (OER) reduction (ORR) are needed rechargeable Zn–air batteries. In this study, a directional electron transfer pathway is exploited in spatial heterojunction of Co y Ni x @Fe─N─C heterogeneous catalyst effective electrolysis (OER/ORR). Thereinto, the Co/Ni alloy strongly coupled to Fe─N─C support through Co/Ni─N bonds. DFT calculations experimental findings confirm that bonds play bridging...

Grb2-associated binder 2 (Gab2), a scaffolding adaptor protein, has recently been implicated in cancer progression. However, the role of Gab2 progression and metastasis colorectal (CRC) remains unclear. expression was assessed CRC patient specimens as well cell lines. Recombinant lentivirus vector containing gene its small interfering RNAs were constructed introduced into cells. Cell migration invasion ability evaluated by transwell assays vitro, vivo performed on nude mice model. Moreover,...

Pregnancy is a physiological process with pronounced hormonal fluctuations in females, and relatively little known regarding how pregnancy influences the ecological shifts of supragingival microbiota. In this study, plaques salivary hormones were collected from 11 pregnant women during (P1, ≤14 weeks; P2, 20-25 P3, 33-37 weeks) postpartum period (P4, 6 weeks after childbirth). Seven non-pregnant volunteers sampled at same time intervals. The microbial genetic repertoire was obtained by 16S...

For uracil-functionalized BODIPY dyes <bold>1a–c</bold>, AIEE upon H-bonding directed J-aggregation was observed for the two bearing alkyne groups at boron while BF₂-chelated dye displayed ACQ, indicating crucial role of substituents boron.

Transition metal nitrides (TMNs) electrocatalysts experience rapid performance degradation during oxygen evolution reaction (OER) due to severe and irreversible electrochemical reconstruction, impeding their practical application in water splitting. To address this issue, ternary (Ni, Fe, Cr) nitride nanoparticles on spongy nitrogen‐doped disordered carbon skeleton electrocatalyst (NFCN/C) is synthesized using a novel one‐pot pyrolysis of eutectic mixture method. The ionomer‐free NFCN/C...

An amphiphilic boron-azadipyrromethene (aza-BODIPY) dye (R)-1 bearing two chiral hydrophobic side chains was synthesized, and its supramolecular assembly properties were investigated in detail. The UV/vis absorption, emission, CD spectroscopic studies indicated the pathway complexity aggregation process of (R)-1. In mixed solvent MeOH/H2O, first formed kinetically favored metastable aggregates (Agg. I) upon cooling solution, which could slowly transform into thermodynamically more stable...

The imbalance of human gut microbiota has been associated with colorectal cancer. In recent years, metagenomics research provided a large amount scientific data enabling us to study the dedicated roles microbes in onset and progression We removed unrelated redundant features during feature selection by mutual information. then trained random forest classifier on dataset cancer patients healthy people assembled from published reports extracted analysed information learned decision trees....

A solid-state polymer electrolyte membrane is formed by blending poly(vinylidene fluoride-co-hexafluoropropylene) with the synthesized copolymer of poly(methyl methacrylate-co-1-vinyl-3-butyl-imidazolium bis(trifluoromethanesulfonyl)imide, in which lithium bis(trifluoromethane)sulfonimide molecules are applied as source ions. The accordingly that contains 14 wt.% P(MMA-co-VBIm-TFSI), 56 PVDF-HFP, and 30 LiTFSI manifests best electrochemical properties, achieving an ionic conductivity 1.11 ×...

An amphiphilic aza-BODIPY dye (S)-1 bearing two chiral hydrophilic side chains with S-stereogenic centers was synthesized. This exhibited kinetic-controlled self-assembly pathways and supramolecular polymorphism properties in MeOH/H

A metallo-supramolecular amphiphilic dye has been constructed by using two azadipyrromethene units, one bearing hydrophobic alkyl chains, the other hydrophilic oligo(ethylene glycol) chains. In EtOH/H2O (4:1, v/v), consecutive self-assembly pathways were observed for this that lead to formation of kinetically controlled, non-emissive nanodisc-shaped aggregates (Agg. I) and thermodynamic J-type II) with NIR emission morphology a 2D nanosheet. More information can be found in Research Article...

<title>Abstract</title> The serious polarization and stability induced by the doped phosphoric acid hinder their practical applications of acid-based high-temperature proton exchange membrane fuel cells. Herein, we report that internal stress inside acid-doped polymer electrolyte generated during formation process is major driving force for leaching in turn affects performance accordingly assembled Based on this finding, develop an <italic>in-situ</italic> solution casting strategy to...