Publications by authors named "Weidong He"

Zinc metal batteries have been considered as an appealing candidate for grid-scale energy storage devices, but are hindered by the instable interface. Herein, we design a sol-to-gel gradient electrolyte through the simultaneous electrochemical deposition of Zn and alginate. The electrochemical gelation of alginate creates a gradient sol-to-gel interface and enables the high ionic conductivity, where vehicular mechanism dominated transport is maintained in the bulk electrolyte, while a lean-water hydrogel like state is created at the Zn/electrolyte interface to reduce water activity.

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Objectives: To propose and evaluate a novel, non-invasive approach for enduring corneal astigmatism correction based on topography-guided, patterned, customized riboflavin-ultraviolet A corneal collagen crosslinking (CXL).

Methods: Astigmatism was modelled on both eyes of rabbits. A randomly selected eye of each rabbit was treated by the proposed CXL procedure with another eye as control.

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Article Synopsis
  • A new two-dimensional electrocatalyst called PdRhFeCoMo HEM has been created to improve the efficiency of ethanol oxidation, focusing on C1 selectivity and resistance to poisoning.
  • This catalyst shows impressive performance metrics, with a mass activity of 7.47 A/mg, specific activity of 25.5 mA/cm², and retains significant activity even after extensive testing.
  • The design of the catalyst enhances its ability to cleave C─C bonds and achieve high C1 selectivity (84.12%), while also powering a solid-state ethanol fuel cell with a maximum power density of 20.1 mW/cm².
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Designing palladium-based formic acid oxidation reaction (FAOR) catalysts to achieve significant breakthroughs in catalytic activity, pathway selectivity, and toxicity resistance is both urgent and challenging. Here, these challenges are addressed by pioneering a novel catalyst design that incorporates both topological and chemical disorder, developing a new class of PdCuLaYMnW high-entropy amorphous alloys with a porous network (Net-Pd-HEAA) as a highly active, selective, and stable FAOR electrocatalyst. This novel Net-Pd-HEAA demonstrates record-breaking FAOR performance, achieving the mass and specific activities of 5.

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Electrochemical nitrate reduction reaction (NitRR) uses nitrate from wastewater, offering a hopeful solution for environmental issues and ammonia production. Yet, varying nitrate levels in real wastewater greatly affect NitRR, slowing down its multi-step process. Herein, a multi-strategy approach was explored through the design of ordered mesoporous intermetallic AuCu nanocorals with ultrathin Au skin (meso-i-AuCu@ultra-Au) as an efficient and concentration-versatile catalyst for NitRR.

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Although the combination of anti-vascular strategy plus immunotherapy has emerged as the optimal first-line treatment of hepatocellular carcinoma, lack of tumor targeting leads to low antitumor efficacy and serious side effect. Here, we report an ultra-pH-sensitive nanoparticle of gambogenic acid (GNA) encapsulated by poly(ethylene glycol)-poly(2-azepane ethyl methacrylate) (PEG-PAEMA) for tumor-targeting combined therapy of anti-vascular strategy plus immunotherapy. PEG-PAEMA-GNA nanoparticle was quite stable at pH 7.

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Substantial evidence suggests that all types of water, such as drinking water, wastewater, surface water, and groundwater, can be potential sources of Helicobacter pylori (H. pylori) infection. Thus, it is critical to thoroughly investigate all possible preconditioning methods to enhance the recovery of H.

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RuO has been considered as the most likely acidic oxygen evolution reaction (OER) catalyst to replace IrO, but its performance, especially long-term stability under harsh acidic conditions, is still unacceptable. Here, we propose a grain boundary (GB) engineering strategy by fabricating the ultrathin porous RuO nanosheet with abundant of grain boundaries (GB-RuO) as an efficient acid OER catalyst. The involvement of GB induces significant tensile stress and creates an unsaturated coordination environment, effectively optimizing the adsorption of intermediates and stabilizing active site structure during OER process.

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Background: There is no doubt that both Hashimoto thyroiditis and Graves' disease are autoimmune thyroid diseases (AITDs), but the relationship between anti-nuclear antibody (ANA) and AITDs is poorly studied. The association between thyroid autoantibody levels and ANA positivity was evaluated to assess the role of ANA in AITDs.

Methods: We conducted an analysis using data from 1,149,893 patients registered at our hospital and 53,021 patients registered in the National Health and Nutrition Examination Survey databases.

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Objective: To explore the mechanism of Dangua Fang (, DGR) in multi-target and multi-method regulation of glycolipid metabolism based on phosphoproteomics.

Methods: Sprague-Dawley rats with normal glucose levels were randomly divided into three groups, including a conventional diet control group (Group A), high-fat-high-sugar diet model group (Group B), and DGR group (Group C, high-fat-high-sugar diet containing 20.5 g DGR).

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Background And Purpose: Obesity among children and adolescents continues to increase globally, and it is important to determine the factors associated with obesity among adolescents for the prevention and reduction of obesity. The purpose of this study is to understand the factors associated with the increase in the obesity rate among adolescents, providing a reference basis for the development of projects aimed at promoting adolescent health.

Methods: Using the raw data of 2021 adolescent health behavior online survey, this study analyzed demographic sociological factors, mental health, exercise habits, health behaviors and other categorical variables, and conducted the frequency, χ2 test for the difference in the proportion of obese and non-obese.

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Noble metal free electrocatalysts for hydrogen evolution reaction (HER) in acid play an important role in proton exchange membrane-based electrolysis. Here, we develop an in situ surface self-reconstruction strategy to construct excellent acidic HER catalysts. Firstly, free-standing zinc nickel tungstate nanosheets inlaid with nickel tungsten alloy nanoparticles were synthesized on carbon cloth as pre-catalyst via metal-organic framework derived method.

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Utilizing catalysts to accelerate polysulfides conversion are of paramount importance to eliminate the shuttling effect and improve the practical performance of lithium-sulfur (Li-S) batteries. The amorphism, attributes to the abundant unsaturated surface active sites, has recently been recognized as a contribution to increase the activity of catalysts. However, the investigation on amorphous catalysts has received limited interest in lithium-sulfur batteries due to lack of understanding of their composition structure activity.

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Zn-N-C possesses the intrinsic inertia for Fenton-like reaction and can retain robust durability in harsh circumstance, but it is often neglected in oxygen reduction reaction (ORR) because of its poor catalytic activity. Zn is of fully filled 3d 4s configuration and is prone to evaporation, making it difficult to regulate the electronic and geometric structure of Zn center. Here, guided by theoretical calculations, five-fold coordinated single-atom Zn sites with four in-plane N ligands is constructed and one axial O ligand (Zn-N -O) by ionic liquid-assisted molten salt template method.

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Fluidic soft robots have the advantages of inherent compliance and adaptability, but they are significantly restricted by complex control systems and bulky power devices, including fluidic valves, fluidic pumps, electrical motors, as well as batteries, which make it challenging to operate in narrow space, energy shortage, or electromagnetic sensitive situations. To overcome the shortcomings, we develop portable human-powered master controllers to provide an alternative solution for the master-slave control of the fluidic soft robots. Each controller can supply multiple fluidic pressures to the multiple chambers of the soft robots simultaneously.

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Because of the increasing scarcity of water resources, the desalination of seawater by photothermal evaporation with harvested solar energy has gradually become a popular research topic. The interconnected macroporous cryogel prepared from polymerization and crosslinking below the freezing temperature of the reactant solution has an excellent performance in photothermal water evaporation after loading photothermal materials. In this study, polyacrylamide (PAM) cryogels were prepared by cryo-polymerization and sulfonated in an alkaline solution containing formaldehyde and NaSO.

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Without excess Li, anode-free Li-metal batteries (AFLMBs) have been proposed as the most likely solution to realizing highly-safe and cost-effective Li-metal batteries. Nevertheless, short cyclic life puzzles conventional AFLMBs due to anodic dead Li accumulation with a local current concentration induced by irreversible electrolyte depletion, insufficient active Li reservoir and slow Li transfer at the solid electrolyte interphase (SEI). Herein, SrI is introduced into carbon paper (CP) current collector to effectively suppress dead Li through synergistic mechanisms including reversible I /I redox reaction to reactivate dead Li, dielectric SEI surface with SrF and LiF to prevent electrolyte decomposition and highly ionic conductive (3.

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For the maintenance of a biological system, spatial organization of material condensates within the cell through the dissipation of energy is crucial. Besides directed transport microtubules, material arrangement can be achieved motor protein facilitated adaptive active diffusiophoresis. For example, the distribution of membrane proteins during the cell division of is affected by the MinD system.

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Article Synopsis
  • Achieving efficient drug accumulation in tumors with low vascular density is challenging, but it's crucial for enhancing anti-vascular therapeutic effectiveness.
  • Researchers developed charge-reversible nanoparticles (CRNP-GNA) that create a positive feedback loop, increasing tumor vascular permeability and drug accumulation, leading to better treatment outcomes.
  • In animal studies, CRNP-GNA significantly improved drug retention and anti-tumor efficacy, curing 5 out of 6 tumors, while also reducing the number of microvessels in the tumor.
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Article Synopsis
  • A new cancer treatment using a selective polymer (PEG-PAEMA) has been created that changes activity based on the acidity of the tumor environment, allowing for targeted therapy.
  • This polymer can remain inactive at normal pH levels but becomes highly effective against tumors in acidic conditions, showing a significant increase in cancer-killing ability without harming normal cells.
  • PEG-PAEMA has proven to be more effective and less toxic than existing treatments in animal models, indicating promising potential for safer, more selective cancer therapy options.
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The soluble fraction of atmospheric transition metals is particularly associated with health effects such as reactive oxygen species compared to total metals. However, direct measurements of the soluble fraction are restricted to sampling and detection units in sequence burdened with a compromise between time resolution and system bulkiness. Here, we propose the concept of aerosol-into-liquid capture and detection, which allowed one-step particle capture and detection via the Janus-membrane electrode at the gas-liquid interface, enabling active enrichment and enhanced mass transport of metal ions.

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SARS-CoV-2 spreads droplets, aerosols, and smear infection. From the beginning of the COVID-19 pandemic, using a facemask in different locations was recommended to slow down the spread of the virus. To evaluate facemasks' performance, masks' filtration efficiency is tested for a range of particle sizes.

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The macro-porous structure of polymer cryogels provides an appropriate channel for the adsorption and transport of substances, endowing its application in the field of electrochemical sensing. The combination mode of a polymer matrix and electro-active substance, particularly the distribution of an electro-active substance in the matrix, has an important effect on the overall performance of the sensor. In this work, through the simultaneous oxidation coupling polymerization of aniline (ANI) and radical polymerization of acrylamide (AAm) under cryogenic condition, conductive composite cryogels were prepared, aiming for the uniform distribution of PANI in the PAAm matrix.

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High-voltage lithium metal batteries (HVLMBs) have been arguably regarded as the most prospective solution to ultrahigh-density energy storage devices beyond the reach of current technologies. Electrolyte, the only component inside the HVLMBs in contact with both aggressive cathode and Li anode, is expected to maintain stable electrode/electrolyte interfaces (EEIs) and facilitate reversible Li transference. Unfortunately, traditional electrolytes with narrow electrochemical windows fail to compromise the catalysis of high-voltage cathodes and infamous reactivity of the Li metal anode, which serves as a major contributor to detrimental electrochemical performance fading and thus impedes their practical applications.

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