Electron paramagnetic resonance and photoluminescence study on local structure of Gd ions in Gd-doped CaF crystals.

Employing electron paramagnetic resonance (EPR) and excitation and photoluminescence (PL) spectra, changes of the local structure of Gd ions were investigated for the CaF crystals containing 0.00015, 0.17, 1.

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

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.

Understanding the effects of different loadings on properties of a silicon/carbon anode for lithium batteries.

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.

An electron-losing regulation strategy for stripping modulation towards a highly reversible Zn anode.

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.

A dual analysis of bougie and stylet development trend and impact of Chinese regulations on medical devices innovation.

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.

Slightly Li-enriched chemistry enabling super stable LiNiMnO cathodes under extreme conditions.

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.

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

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.

Electrically tunable on-chip quantum Deutsch-Jozsa algorithm with lithium niobate metasurfaces.

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.

Nanomaterials promote the fast development of electrochemical MiRNA biosensors.

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.

Humidity-tolerant and highly sensitive gas sensor for hydrogen sulfide based on WO nanocubes modified with CeO.

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.

Recent progress of electrospun nanofibers as burning dressings.

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.

Recent advances in photothermal nanomaterials-mediated detection of circulating tumor cells.

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.

One-step hydrothermal growth of porous nickel manganese layered double hydroxide nanosheet film towards efficient visible-light modulation.

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.

Mo-doping heterojunction: interfacial engineering in an efficient electrocatalyst for superior simulated seawater hydrogen evolution.

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.

Manipulating the crystal plane angle within the primary particle arrangement for the radial ordered structure in a Ni-rich cathode.

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.

Pink noise: a potential sound therapy for tinnitus.

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.

A novel carbazole-based fluorometric and colorimetric sensor for the highly sensitive and specific detection of Cu in aqueous solution.

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.

Gemini surfactant-like peptide-based nanocages with β-sheet-enhanced stability and encapsulation efficiency of hydrophobic anticancer drugs.

Peptide-based scaffolds have been widely applied to drug delivery because of their ease and high yields of synthesis, well-defined structure, biocompatibility, diversity, tunability of properties, and molecular recognition abilities. However, the stability of peptide-based nanostructures highly depends on the intermolecular assembling manner, , α-helix based coiled coils, β-sheet. Inspired by the robust protein fibril structures in amyloidosis, herein we constructed a β-sheet-forming gemini surfactant-like peptide to self-assemble into nanocages with the help of molecular dynamics simulation.

Double design of host and guest synergistically reinforces the Na-ion storage of sulfur cathodes.

Development of room-temperature sodium-sulfur batteries is significantly hampered by the shuttle effect of soluble intermediates and intrinsically sluggish conversion kinetics. In this work, a double design host and guest strategy (, implantation of a polar VO adsorbent into a carbon substrate and selenium doping of a sulfur guest) is proposed to synergistically reinforce the electrochemical properties of sulfur electrodes in sodium ion storage. The VO adsorbent efficiently immobilizes sulfur species strong polar-polar interactions, while the selenium dopant improves the electronic conductivity of sulfur cathodes and accelerates the redox conversion of sulfur cathodes.

SnO mesoporous nanoparticle-based gas sensor for highly sensitive and low concentration formaldehyde detection.

Indoor air quality detection, especially formaldehyde (HCHO) detection, is of great importance in practical application. A key limitation of promoting gas-sensing devices is the lack of sensing materials with high sensing sensitivity and selectivity. In this study, SnO mesoporous nanoparticles are fabricated by a facile hydrothermal route with a subsequent acid etching process.

Anode optimization strategies for aqueous zinc-ion batteries.

Zinc-ion batteries (ZIBs) have received much research attention due to their advantages of safety, non-toxicity, simple manufacture, and element abundance. Nevertheless, serious problems still remain for their anodes, such as dendrite development, corrosion, passivation, and the parasitic hydrogen evolution reaction due to their unique aqueous electrolyte system constituting the main issues that must be addressed, which are blocking the further advancement of anodes for Zn-ion batteries. Herein, we conduct an in-depth analysis of the problems that exist for the zinc anode, summarize the main failure types and mechanisms of the zinc anode, and review the main modification strategies for the anode from the three aspects of the electrolyte, anode surface, and anode host.

Clinical value of video-assisted single-lumen endotracheal intubation and application of artificial intelligence in it.

Visualization techniques and artificial intelligence (AI) are currently used for intubation device. By providing airway visualization during tracheal intubation, the technologies provide safe and accurate access to the trachea. The ability of AI to automatically identify airways from images of intubation device makes it attractive for use in intubation devices.

Design and evaluation of a multimodal balance training system.

Objective: Current balance training systems are designed exclusively for one particular type of training and assessment. Additionally, they comprise monotonous training programs. Therefore, patients in different stages of rehabilitation must use different balance training models from different manufacturers, resulting in high treatment cost.

Creating peptide-based bioactivities: from assembly to origami.

DNA origami has created complex structures of various spatial dimensions. However, their versatility in terms of function is limited due to the lower number of the intrinsic building blocks, nucleotides, compared with the number of amino acids. Therefore, protein origami has been proposed and demonstrated to precisely fabricate artificial functional nanostructures.