Portable water collection bag based on solar-driven interfacial evaporation.

Convenient and portable, sustained provision of safe drinking water is crucial for wilderness survival. In this study, a portable water collection bag utilising solar-driven interface evaporation technology has been developed. The water collection bag includes a plastic film, CB-PS microsphere evaporator, and a small vial.

Single-cell transcriptome analysis reveals reciprocal epithelial and endothelial cell evolution in ovarian cancer.

Tumor neovascularization mediated by endothelial cells (ECs) is essential for ovarian cancer (OC) progression, but interactions between epithelial cells and ECs are not well understood. Here, we analyze single-cell transcriptome of 87,847 epithelial cells and 11,696 ECs from fallopian tubes, primary and metastatic ovarian tumors. Cell differentiation trajectory analysis reveals that fallopian tube cells exhibit a potential development trend toward primary OC epithelial cells.

Active Sites Regulation and Mass Production of a Hierarchically Porous Fe-N-C Catalyst for Zinc-Air Batteries.

Although the iron-nitrogen-carbon (Fe-N-C) catalyst has great potential in zinc-air batteries (ZABs), the insufficient performance and low production of the Fe-N-C catalyst are still the key factors that greatly limit the commercial application. In this study, first, a simple dual melt-salt template method is developed to prepare the hierarchically porous HPFe-N-C catalyst with abundant highly stable Fe-pyridinic-N sites. Then, HPFe-N-C and Fe-phenanthroline are mixed and heated for the mass production of THPFe-N-C with rich highly active Fe-pyrrolic-N sites.

Completely Methylene-Free Side Chain Enables Significant Microphase Separation at Medium IECs for Fuel-Cell Anion Exchange Membranes.

The introduction of hydrophobic side chain structures in anion exchange membranes (AEMs) to facilitate ion transport has been widely studied; however, low or moderate hydrophobic hydrocarbon and semifluorinated side chains are insufficient to induce a high degree of microphase separation. Herein, we design and prepare poly(aryl piperidinium) AEMs with completely methylene-free perfluorinated side chains, which can maximize the thermodynamic incompatibility between main- and side chains, thus enhancing microphase separation at medium ion exchange capacities (IECs). According to the molecular dynamics study, the methylene-free perfluorinated side chain leads to better hydration of cations.

Additives for Aqueous Zinc-Ion Batteries: Recent Progress, Mechanism Analysis, and Future Perspectives.

Aqueous zinc-ion batteries (ZIBs) stand out as a promising next-generation electrochemical energy storage technology, offering notable advantages such as high specific capacity, enhanced safety, and cost-effectiveness. However, the application of aqueous electrolytes introduces challenges: Zn dendrite formation and parasitic reactions at the anode, as well as dissolution, electrostatic interaction, and by-product formation at the cathode. In addressing these electrode-centric problems, additive engineering has emerged as an effective strategy.

Hsa_circ_0004872 alleviates meningioma progression by sponging miR-190a-3p/PTEN signaling.

Background: Meningioma, the most prevalent intracranial tumor, possesses a significant propensity for malignant transformation. Circular RNAs (circ-RNAs), a class of non-coding RNAs, have emerged as crucial players in tumorigenesis. This study explores the functional relevance of hsa_circ_0004872, a specific circ-RNA, in the context of meningioma.

Mott-Schottky MXene@WS Heterostructure: Structural and Thermodynamic Insights and Application in Ultra Stable Lithium-Sulfur Batteries.

Due to the "shuttle effect" and low conversion kinetics of polysulfides, the cycle stability of lithium sulfur (Li-S) battery is unsatisfactory, which hinders its practical application. The Mott-Schottky heterostructures for Li-S batteries not only provide more catalytic/adsorption active sites, but also facilitate electrons transport by a built-in electric field, which are both beneficial for polysulfides conversion and long-term cycle stability. Here, MXene@WS heterostructure was constructed by in-situ hydrothermal growth for separator modification.

Ultralow-Temperature SnO Electron Transport Layers Fabricated by Intermediate-Controlled Chemical Bath Deposition for Highly Efficient Perovskite Solar Cells.

As electron transport layers (ETLs) in perovskite solar cells (PSCs), tin oxide (SnO ) possess high carrier mobilities with appropriate energy band alignment and high optical transmittance. Herein, SnO ETLs were fabricated by intermediate-controlled chemical bath deposition (IC-CBD) at ultralow temperature, where the chelating agent effectively altered the nucleation and growth process. Compared with conventional CBD, SnO ETLs fabricated by IC-CBD had lower defects, smooth surface, good crystallinity, and remarkable interfacial contact with perovskite, resulting in good quality of perovskite, high photovoltaic performance (23.

Boosting the Electrocatalytic Performance of CoPt Alloy with Enhanced Electron Transfer via Atomically Dispersed Cobalt Sites.

Designing electrocatalysts with strong electronic metal-support interaction can effectively regulate the electronic properties of metal active centers, therefore maximizing the catalytic performance. As a proof of concept, heteroatoms doped carbon with CoPt alloy and isolated Co single atoms (CoPtCoSA@NSC) are synthesized using CoPt bimetallic metal-organic framework as the precursor in this work. The existence of CoSA on the carbon substrate leads to more electron transfer between CoPt and the support, and appropriate upward shift of the d band center of the catalysts, which can effectively reduce the reaction barrier of rate determine step and boost the catalytic performance of CoPt alloy.

Construction and validation of a cuproptosis-related prognostic model for glioblastoma.

Background: Cuproptosis, a newly reported type of programmed cell death, takes part in the regulation of tumor progression, treatment response, and prognosis. But the specific effect of cuproptosis-related genes (CRGs) on glioblastoma (GBM) is still unclear.

Methods: The transcriptome data and corresponding clinical data of GBM samples were downloaded from the TCGA and GEO databases.

Frontal plane projection angle predicts patellofemoral pain: Prospective study in male military cadets.

Background: Patellofemoral pain (PFP) is a major source of knee pain. Identifying who may develop PFP is of paramount importance.

Purpose: To assess whether Frontal plane projection angles (FPPA) and hand held dynamometry (HHD) strength measures can predict development of PFP.

Construction of Self-Supporting NiCoFe Nanotube Arrays Enabling High-Efficiency Alkaline Oxygen Evolution.

Enhancing the intrinsic activity and modulating the electrode-electrolyte interface microenvironment of nickel-based candidates are essential for breaking through the sluggish kinetics limitation of the oxygen evolution reaction (OER). Herein, a ternary nickel-cobalt-iron solid solution with delicate hollow nanoarrays architecture (labeled as NiCoFe-NTs) was designed and fabricated via a ZnO-templated electrodeposition strategy. Owing to the synergistic nanostructure and composition feature, NiCoFe-NT presents desirable alkaline OER performance, with a η and η of 187 and 310 mV, respectively, along with favorable long-term durability.

The Immediate Effect of Backward Walking on External Knee Adduction Moment in Healthy Individuals.

Backward walking (BW) has been recommended as a rehabilitation intervention to prevent, manage, or improve diseases. However, previous studies showed that BW significantly increased the first vertical ground reaction force (GRF) during gait, which might lead to higher loading at the knee. Published reports have not examined the effects of BW on medial compartment knee loading.

Bimetallic co-doping engineering over nickel-based oxy-hydroxide enables high-performance electrocatalytic oxygen evolution.

Enhancing the electrocatalytic oxygen evolution reaction (OER) performance is essential to realize practical energy-saving water electrolysis and CO electroreduction. Herein, we report a bimetallic co-doping engineering to design and fabricate nickel-cobalt-iron collaborative oxy-hydroxide on nickel foam that labeled as NiCoFeOH-NF. As expected, NiCoFeOH-NF exhibits an outstanding OER activity with current density of 10 mA cm at 194 mV, Tafel slope of 53 mV dec, along with the robust long-term stability, which is significantly better than bimetallic NiCo and NiFe combinations.

Synergistic doping and structural engineering over dendritic NiMoCu electrocatalyst enabling highly efficient hydrogen production.

The development of non-precious metal electrocatalysts with remarkable activity is a major objective for achieving high-efficiency hydrogen generation. Here, a trimetallic electrocatalyst with a dendritic nanostructure, which is denoted as NiMoCu-NF, was fabricated on nickel foam a gas-template electrodeposition strategy. By virtue of the metallic doping and structural optimization, NiMoCu-NF exhibits superior HER electrocatalytic activity with an overpotential of 52 mV at 10 mA cm.

The lymphocyte-to-monocyte ratio predicts intracranial atherosclerotic stenosis plaque instability.

Background And Purpose: Gadolinium enhancement on high-resolution vessel wall imaging (HR-VWI) is an imaging marker of intracranial atherosclerotic stenosis (ICAS) plaque instability. This study aimed to evaluate the relationships between hematological inflammatory indicators and the enhancement of ICAS plaques and to search for hematological indicators that can predict ICAS plaque instability.

Methods: Consecutive adult patients diagnosed with ICAS from April 2018 to December 2021 were recruited retrospectively, and every patient underwent HR-VWI.

Exosomes derived from bone marrow mesenchymal stem cells attenuate neurological damage in traumatic brain injury by alleviating glutamate-mediated excitotoxicity.

Background: Traumatic brain injury (TBI) is one of the major contributors to disability and death worldwide. Glutamate-mediated excitotoxicity, one of the secondary injuries occurring after TBI, leads to extreme neuronal apoptosis, and can be a potential target for intervention. Bone marrow mesenchymal stem cells-derived exosomes (BMSCs-Exos) have demonstrated neuroprotective effects on TBI.

Cascaded band gap design for highly efficient electron transport layer-free perovskite solar cells.

The elimination of the electron transport layer (ETL) to fabricate ETL-free perovskite solar cells (PSCs) could save manufacturing cost and time. However, the direct contact of the perovskite and transparent conducting oxide (TCO) electrodes results in mismatched energy level alignment and current leakage. Therefore, ETL-free PSCs suffer from unsatisfactory photovoltaic performance.