96 results match your criteria: "University of Shanghai for Science and Technology Shanghai[Affiliation]"

The challenges and strategies towards high-performance anode-free post-lithium metal batteries.

Chem Sci

January 2025

School of Chemistry, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beihang University Beijing 100191 China

With the merits of high theoretical energy density and ease of manufacture, anode-free post-lithium metal batteries have drawn extensive attention and have been rapidly emerging in recent years. However, the poor reversibility of metal anodes has severely hindered the realization of high-performance anode-free batteries. In this review, the critical challenges and strategies for achieving high-performance anode-free metal batteries are first elucidated.

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Elevated subcutaneous adipose tissue in obese men correlates strongly with a higher risk of aggressive prostate cancer and poor treatment outcomes, but the exact mechanism underlying the increased risk remains elusive. To address this question, we analyzed prostate cancer transcriptomic data from The Cancer Genome Atlas as well as single-cell RNA sequencing and tissue microarray data from prostate cancer cells. Subcutaneous adipose tissue-associated cysteine-rich protein 2 (CSRP2) was significantly downregulated in prostate cancer epithelial cells.

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Battery cells based on different silicon/carbon (Si/C) loadings were assembled in this work. Their battery performance, in particular their capacity and cycling stability, was evaluated. The battery was assembled in a way that a pure Li metal counter electrode, LiPF liquid electrolyte and pole piece with Si/C coatings were employed.

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Article Synopsis
  • - The study aimed to compare the biomechanical performance of polyetheretherketone (PEEK) and titanium alloys in fixation systems for reconstructing mandibular defects after surgeries due to tumors or trauma using finite element analysis.
  • - In the analysis, PEEK materials (including unmodified, glass fiber-reinforced, and carbon fiber-reinforced) generated more stress on the mandible than titanium alloys, with glass fiber-reinforced PEEK being particularly problematic as it exceeded the mandible’s yield strength.
  • - The conclusion was that carbon fiber-reinforced PEEK showed better stress distribution and stability, making it the most suitable material for mandibular defect repair in fixation systems, as prolonged low stress can lead to bone issues.*
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The practical application of aqueous zinc-ion batteries (AZIBs) is hindered by their low coulombic efficiency (CE) and unstable cycle life. Numerous electrolyte-additive-related studies have been performed, but most of the focus has been on the Zn plating process. In fact, practical AZIBs undergo stripping in practice rather than plating in the initial cycle, because the commonly used cathodes in the charged state do not have zinc ions, so a uniform stripping process is crucial for the cell performance of AZIBs.

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Background: Gout is closely tied to metabolism, yet there is limited evidence on how metabolites may cause or prevent the condition.

Methods: This study utilized a two-sample Mendelian randomization (MR) analysis to evaluate the causal relationship between 1,400 serum metabolites and gout. We primarily employed the inverse variance-weighted (IVW) method to estimate causal effects, supplemented by MR-Egger regression, weighted median, simple mode, and weighted mode for comprehensive evaluations.

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Medical device research and development are characterized by high costs, extended timelines, inherent risks, and the necessity for interdisciplinary knowledge and skills. It is significantly influenced by policies, making the understanding of medical device innovation both important and challenging. This paper takes a dual approach to analyze medical device innovation.

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Interactions between inorganic materials and living systems can be strongly influenced by the dimensional property of the materials, which can in turn impact biological activities. Although the role of biomaterials at the molecular and cellular scales has been studied, research investigating the effects of biomaterials across multiple dimensional scales is relatively scarce. Herein, comparing the effectiveness of two-dimensional graphene oxide nanosheets (GOs) and three-dimensional graphene oxide quantum dots (GOQDs) (though not zero-dimensional because of their significant surface area) in cancer therapies, we have discovered that GOs, with the same mass concentration, exhibit stronger anti-cancer and anti-tumor metastasis properties than GOQDs.

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High voltage/high temperature operation aggravates the risk of capacity attenuation and thermal runaway of layered oxide cathodes due to crystal degradation and interfacial instability. A combined strategy of bulk regulation and surface chemistry design is crucial to handle these issues. Here, we present a simultaneous LiWO-coated and gradient W-doped 0.

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Light-Adapted Optoelectronic-Memristive Device for the Artificial Visual System.

ACS Appl Mater Interfaces

August 2024

Department of Materials Science, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, P. R. China.

With the development of artificial intelligence systems, it is necessary to develop optoelectronic devices with photoresponse and storage capacity to simulate human visual perception systems. The key to an artificial visual perception system is to integrate components with both sensing and storage capabilities of illumination information. Although module integration components have made useful progress, they still face challenges such as multispectral response and high energy consumption.

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In this work, we fabricate a series of full-fluorescent organic light-emitting diodes (OLEDs) with the thermally activated delayed fluorescence (TADF) exciplex emitter in order to improve the efficiency through the reverse intersystem crossing (RISC) process. The TADF exciplex emitters are made up of a mixture of P-type materials (DMAC-DPS and mCBP) and n-type material (PO-T2T), among which DMAC-DPS also classes as a TADF material. The change in doping concentration will affect the intermolecular distance and the composition of TADF material and two kinds of exciplexes (DMAC-DPS:PO-T2T and mCBP:PO-T2T) in the luminescent layer (EML).

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Owing to the inherent advantages of parallelism, rapid processing speed, and minimal energy consumption, optical analog computing has witnessed a progressive development. Quantum optical computing exceeds the capabilities of classical computing in terms of computational speed in numerous tasks. However, existing metamaterial-based quantum Deutsch-Jozsa (DJ) algorithm devices have large structural dimensions and are not suitable for miniaturized optical computing systems.

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Cancer has become the leading cause of death worldwide. In recent years, molecular diagnosis has demonstrated great potential in the prediction and diagnosis of cancer. MicroRNAs (miRNAs) are short oligonucleotides that regulate gene expression and cell function and are considered ideal biomarkers for cancer detection, diagnosis, and patient prognosis.

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The influence of ambient humidity on the gas-sensing characteristics of metal oxide semiconductors has been one of the greatest obstacles for gas-sensing applications. In this paper, the pure WO and CeO-modified WO nanocubes were prepared by a simple hydrothermal method, and their gas-sensing characteristics in dry and humid atmospheres were investigated. The results show that CeO/WO demonstrated excellent gas-sensing properties toward HS with high sensitivity and high selectivity at 115 °C.

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Objectives: To identify and classify submucosal tumors by building and validating a radiomics model with gastrointestinal endoscopic ultrasonography (EUS) images.

Methods: A total of 144 patients diagnosed with submucosal tumors through gastrointestinal EUS were collected between January 2019 and October 2020. There are 1952 radiomic features extracted from each patient's EUS images.

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Burns are a global public health problem, which brings great challenges to public health and the economy. Severe burns often lead to systemic infection, shock, multiple organ failure, and even death. With the increasing demand for the therapeutic effect of burn wounds, traditional dressings have been unable to meet people's needs due to their single function and many side effects.

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Photothermal materials have shown great potential for cancer detection and treatment due to their excellent photothermal effects. Circulating tumor cells (CTCs) are tumor cells that are shed from the primary tumor into the blood and metastasize. In contrast to other tumor markers that are free in the blood, CTCs are a collective term for all types of tumor cells present in the peripheral blood, a source of tumor metastasis, and clear evidence of tumor presence.

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Electrochromic smart windows have attracted great attention due to their dynamic regulation of the solar spectrum. NiO and MnO are typical anodic coloration materials and widely investigated as complementary electrodes with WO. However, NiO and MnO films often cannot be bleached to complete transparency, resulting in low transmittances and low optical modulations in the short-wavelength visible region.

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Background: Circular RNAs can serve as regulators influencing the development of pulmonary hypertension (PH). However, their function in pulmonary vascular intimal injury remains undefined. Thus, we aimed to identify specifically expressed circular RNAs in pulmonary microvascular endothelial cells (PMECs) under hypoxia and PH.

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A central goal of disease ecology is to identify the factors that drive the spread of infectious diseases. Changes in vector richness can have complex effects on disease risk, but little is known about the role of vector competence in the relationship between vector richness and disease risk. In this study, we firstly investigated the combined effects of vector competence, interspecific competition, and feeding interference on disease risk through a two-vector, one-host SIR-SI model, and obtained threshold conditions for the occurrence of dilution and amplification effects.

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Exploring economical, efficient, and stable electrocatalysts for the seawater hydrogen evolution reaction (HER) is highly desirable but is challenging. In this study, a Mo cation doped NiSe/MoSe heterostructural electrocatalyst, Mo-NiSe/MoSe, was successfully prepared by simultaneously doping Mo cations into the NiSe lattice (Mo-NiSe) and growing atomic MoSe nanosheets epitaxially at the edge of the Mo-NiSe. Such an Mo-NiSe/MoSe catalyst requires only 110 mV to drive current densities of 10 mA cm in alkaline simulated seawater, and shows almost no obvious degradation after 80 h at 20 mA cm.

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Ni-rich cathodes with a radial ordered microstructure have been proved to enhance materials' structural stability. However, the construction process of radial structures has not yet been clearly elaborated. Herein, the formation process of radial structures induced by different doped elements has been systematically investigated.

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At present, traditional music therapy based on "white noise" is commonly used to treat tinnitus patients. This study aims to apply "pink noise", which has a more balanced frequency distribution than white noise, to the field of tinnitus rehabilitation treatment to study its inhibitory effect on tinnitus. Fractal technology (fractal mathematics) was used to generate semi-repetitive tones as the basic tone of music therapy.

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Objectives: The puncture needle of an intelligent puncture robot must accurately reach the target location early in the diagnosis of benign and malignant nodules and in the puncture ablation of malignant tumors. To track the position and the orientation of the puncture needle tip, an electromagnetic tracking system based on adaptive adjustment of excitation intensity and lock-in amplification is proposed.

Methods: The system includes a time-sharing excitation device with multiple magnetic sources, a magnetic sensor, a signal processing device based on dual-phase lock-in amplifiers and a computing platform in the upper computer.

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Based on the typical Suzuki coupling reaction and Schiff base reaction, a novel fluorescent molecular PCBW is synthesized and applied as a fluorescence and colorimetric sensor to detect Cu in aqueous solution. The PCBW sensor presents the aggregation-caused quenching (ACQ) effect and at 1 × 10 mol L it emits the strongest turquoise fluorescence in the DMSO-HO system ( = 40%). The sensor exhibits a 'turn-off' fluorescent characteristic by adding Cu, and its fluorescent intensity shows a reliable linear relationship with the Cu concentration in the range of 0-6 × 10 mol L, with a detection limit of 1.

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