Hollow CoS anchored on hierarchically porous carbon derived from Pien Tze Huang for high-performance supercapacitors.

The development of electrode materials with a high specific capacitance, power density, and long-term stability is essential and remains a challenge for developing supercapacitors. Cobalt sulfides (CoS) are considered one of the most promising and widely studied electrode materials for supercapacitors. Herein, CoS and hierarchical porous carbon derived from Pien Tze Huang waste are assembled into a cobalt sulfide/carbon (CoS/PZH) matrix composite using a one-step hydrothermal method to resolve the challenges of supercapacitors.

Facile fabrication of self-supporting porous CuMoO@CoO nanosheets as a bifunctional electrocatalyst for efficient overall water splitting.

Research shows that redox complementarity and synergism among the ingredients of heterogeneous catalysts can enhance the performance of the catalyst. In this research, a porous CuMoO@CoO nanosheet electrocatalyst is prepared, which is uniformly decorated on nickel foam (NF) by hydrothermal reactions and the impregnation method. The CuMoO@CoO is an efficient bifunctional catalyst with prominent electrocatalytic activity and durability.

Fabrication of PEBA/HZIF-8 Pervaporation Membranes for High Efficiency Phenol Recovery.

Phenol and its chemical derivatives serve as essential chemical materials are indispensable for the synthesis of many kinds of polymers. However, they are highly toxic, carcinogenic, difficult to be degraded biologically, and often found in aqueous effluents. Recovery of hazardous phenol from wastewater remains a daunting challenge.

Microbial-Derived Polyhydroxyalkanoate-Based Scaffolds for Bone Tissue Engineering: Biosynthesis, Properties, and Perspectives.

Polyhydroxyalkanoates (PHAs) are a class of structurally diverse natural biopolyesters, synthesized by various microbes under unbalanced culture conditions. PHAs as biomedical materials have been fabricated in various forms to apply to tissue engineering for the past years due to their excellent biodegradability, inherent biocompatibility, modifiable mechanical properties, and thermo-processability. However, there remain some bottlenecks in terms of PHA production on a large scale, the purification process, mechanical properties, and biodegradability of PHA, which need to be further resolved.

The value of caudate lobectomy in hilar cholangiocarcinoma treatment: A meta-analysis.

Purpose: To discuss the value of caudate lobectomy in hilar cholangiocarcinoma (HCCA) treatment.

Methods: A systematic review was performed in PubMed, MEDLINE database, EMBASE, and Cochrane Library for trials comparing combined caudate lobectomy with controls from January 1, 1990 to December 2, 2020. The outcomes were postoperative radical cure information, survival condition, morbidity, and mortality.

Hydrophobic Two-Dimensional MoS Nanosheets Embedded in a Polyether Copolymer Block Amide (PEBA) Membrane for Recovering Pyridine from a Dilute Solution.

A two-dimensional molybdenum disulfide (MoS) nanosheet, as a new type of inorganic material with high hydrophobicity and excellent physicochemical stability, holds great application potential in the preparation of a high separation performance organic-inorganic hybrid membrane. In this work, high hydrophobic MoS was embedded in hydrophobic polyether copolymer block amide (PEBA) to prepare PEBA/MoS organic-inorganic hybrid membranes. The structure, morphology, and hydrophobicity of the hybrid membrane were characterized by scanning electron microscopy, thermogravimetric analysis, contact angle goniometry, X-ray diffraction, infrared spectroscopy analysis, and atomic force microscopy.

Molecular cloning and expression analysis of myd88 from oriental weatherfish (Misgurnus anguillicaudatus) in response to bacterial challenge.

Myeloid differentiation factor 88 (Myd88) plays an important role in both innate and adaptive immune response. In this study, the full-length complementary DNA (cDNA) of myd88 from Misgurnus anguillicaudatus was characterized. The myd88 cDNA is 1333 bp in length and contains an 855 bp open reading frame encoding a predicted protein of 284 amino acids.

Self-regulated learning ability, metacognitive ability, and general self-efficacy in a sample of nursing students: A cross-sectional and correlational study.

The healthcare sector is fast-growing and knowledge-intensive, and to meet the demands associated with it, nursing students must have high levels of self-regulated learning (SRL), metacognition, and general self-efficacy (GSE). In this cross-sectional, correlational study, data were collected from 216 nursing students through a questionnaire. The aims were: 1) to describe the levels of SRL ability, metacognitive ability and GSE among second- and third-year nursing students; 2) to explore the relationships between the SRL ability, metacognitive ability and GSE of second- and third-year nursing students; 3) and to compare SRL ability, metacognitive ability and GSE between second- and third-year nursing students.

[PM adsorption capacity of Osmanthus fragrans and Cinnamomum camphora leaf surface and influencing factors under different pollution levels in Changsha, China].

To understand the PM adsorption mechanisms of plants under different pollution levels and analyze pollutant sources, the PM adsorption amount of the leaves of two garden plant species (Cinnamomum camphora and Osmanthus fragrans) in different polluted level area (traffic area, culture and education area, cleaning area) of Changsha was measured using an aerosol generator. AFM scanning was used to obtain leaf surface micromorphological characteristics. Ion chromatography was used to measure the water-soluble ion content.

High removal of thiophene from model gasoline by porous MIL-101(Cr)/SA hybrid membrane.

Membrane separation technologies have great promising potential for applications in several industries. Metal-organic frameworks (MOFs), for their large surface areas, low framework densities, transition-metal ions in the skeleton and high pore volumes relative to other porous matrices, have great potential for the removal of sulfur from gasoline with high efficiency. In the present study, a novel porous membrane adsorbent MIL-101(Cr)/SA was prepared by immobilizing MIL-101(Cr) onto sodium alginate (SA) matrix, which can combine the size/shape selectivity of MIL-101(Cr) with the processability and mechanical stability of SA polymer.

[Responses of underground clonal storage to mowing of the alien clonal weed species Oxalis articulata.].

Oxalis articulata, an alien clonal plant species, is widely cultivated in China as an ornamental species, and has escaped and became naturalized. Belowground storage in tubers of O. articulata may play a key role for the potential invasion.

Poor maternal nutrition and accelerated postnatal growth induces an accelerated aging phenotype and oxidative stress in skeletal muscle of male rats.

'Developmental programming', which occurs as a consequence of suboptimal in utero and early environments, can be associated with metabolic dysfunction in later life, including an increased incidence of cardiovascular disease and type 2 diabetes, and predisposition of older men to sarcopenia. However, the molecular mechanisms underpinning these associations are poorly understood. Many conditions associated with developmental programming are also known to be associated with the aging process.

Simultaneous electrochemical detection of catechol and hydroquinone based on gold nanoparticles@carbon nanocages modified electrode.

In the present study, carbon nanocages (CNCs) decorated with gold nanoparticles (AuNPs) with diameters of 2-5 nm were synthesized by simply mixing their solutions. The sizes of the AuNPs are small enough to diffuse into the inside of the CNCs by electrostatic incorporation and their morphologies were characterized by transmission electron microscopy, X-ray diffraction, energy dispersive spectrometry, Raman spectrometry and ultraviolet visible absorption spectra. The AuNPs@CNCs modified electrode was prepared for simultaneous highly sensitive determination of catechol (CC) and hydroquinone (HQ).

Phosphate ion targeted colorimetric and fluorescent probe and its use to monitor endogeneous phosphate ion in a hemichannel-closed cell.

Fluorescent probe 1, the first inorganic phosphate (Pi) targeted colorimetric and fluorescent probe to detect endogenous Pi in hemichannel-closed cells, has been developed. Probe 1 undergoes a unique Pi induced hydrolytic reaction in DMSO-HEPES (V/V = 9:1) buffered (0.02 M, pH 7.

Signature microRNAs in human cornea limbal epithelium.

This study was aimed to identify the signature microRNAs, which regulate the biological processes of corneal epithelial progenitor cell (CEPC) homeostasis and regulation through characterizing the differential expression profile of microRNAs in human limbal epithelium containing adult CEPC versus central corneal epithelium without CEPC. MicroRNA microarray had identified 37 microRNAs enriched in human corneal epithelium. Among them, nine were significantly upregulated in limbal epithelium and one in central corneal epithelium after validation by TaqMan® real-time polymerase chain reaction.

Acute appendicitis in organ transplantation patients: a report of two cases and a literature review.

Background: Abdominal surgery on patients with previous organ transplantation, especially in the early postoperative period, is a challenging problem. Due to high risk of complications in transplant patients, we usually tend to treat such patients more conservatively rather compared to the more aggressive attitude in diagnosis and surgery of non-transplant patients. Delayed diagnosis, delayed surgery, and high morbidity and mortality are more common in transplant patients with GI disease.

1,8-Naphthalimide-Cu(ІІ) ensemble based turn-on fluorescent probe for the detection of thiols in organic aqueous media.

A 1,8-naphthalimide-Cu(II) ensemble was rationally designed and synthesized as a new turn-on fluorescent probe utilizing the 'chemosensing ensemble' method for detections of thiols (Cys, Hcy and GSH) with high selectivity over other α-amino acids at pH 7.4 in organic aqueous media (EtOH/HEPES, v/v=9:1). The recognition mechanism was attributed to the remove Cu(II) from the 1,8-naphthalimide-Cu(II) ensemble by thiols and the release of flurescence of ligand 1.

Preparation, characterization and adsorption properties of a novel 3-aminopropyltriethoxysilane functionalized sodium alginate porous membrane adsorbent for Cr(III) ions.

In this study, we prepared 3-aminopropyl-triethoxysilane (APTEOS) functionalized sodium alginate (SA) porous membrane adsorbent (APTEOS/SA) and tested its adsorption performance for removing of Cr(III) ions. The physico-chemical properties of the pristine and Cr(III) ions loaded APTEOS/SA were investigated by FT-IR, SEM-EDX, TG, AFM, and contact angle goniometer methods. To investigate the adsorption kinetics of Cr(III) ions onto this newly developed APTEOS/SA, we performed a batch of experiments under different adsorption conditions: solution pH, adsorbent dose, initial Cr(III) ion concentration, adsorption temperature, and contact time.

Impact of traffic emissions on local air quality and the potential toxicity of traffic-related particulates in Beijing, China.

Objective: Air-borne particulates from different sources could have different physicochemical properties and inflammatory potentials. This study aims to characterize the chemical compositions and the toxicity of ambient particulate matter (PM) associated with traffic emissions.

Methods: The concentrations of trace elements, organic carbon (OC), elemental carbon (EC) and polycyclic aromatic hydrocarbons (PAHs) in PM2.