Optimization of sample preparation for high-throughput statistical morphology analysis of graphene nanosheets by atomic force microscopy.

Developing a high-throughput morphology analysis method is crucial for the industrial application of graphene nanosheets (GNSs). Though atomic force microscopy holds potential, slow solvent evaporation and mismatched surface tension during sample preparation often cause GNS to aggregate, compromising measurement reliability. Here, an optimized sample preparation strategy based on drop-casting via substrate heating and solvent adjustment is proposed to improve the distribution of GNS on the substrate.

High-Performing Nanofiber Memristor via Field-Induced Ion Migration Concentration at Highly-Curved Interwoven Interface.

Memristors with high computing capabilities hold significant potential as processing devices in the era of information explosion, but their applications are largely hindered by the trade-off between memristive performance and operation uniformity. Extensive efforts are devoted to designing or regulating memristive layers of memristors to improve device performance, while few studies focused on the interface structure at cross points of memristors. Herein, inspired by the tip effect, a nanofiber memristor with highly-curved interwoven interface is designed by assembling nanofiber electrodes using dielectrophoretic method.

Organic Cation Modulation in Manganese Halides to Optimize Crystallization Process and X-Ray Response Toward Large-Area Scintillator Screen.

Manganese halides are one of the most potential candidates for large-area flat-panel detection owing to their biological safety and all-solution preparation. However, reducing photon scattering and enhancing the efficient luminescence of scintillator screens remains a challenge due to their uncontrollable crystallization and serious nonradiative recombination. Herein, an organic cation modulation is reported to control the crystallization process and enhance the luminescence properties of manganese halides.

Aminoazanium of A-site Cations in Metal-Free Halide Perovskite Single Crystals to Reduce Thermal Expansion for Efficient X-ray Detection.

Metal-free perovskites (MFPs) have recently become a newcomer in X-ray detection due to their flexibility and low toxicity characteristics. However, their photoelectronic properties and stability should be further improved mainly through materials design. Here, the aminoazanium of DABCO was developed for the preparation of NDABCO-NHBr (NDABCO = N-amino-N'-diazabicyclo[2.

Unraveling the origin of broadband yellow emission in Bi-doped LuXnGaO (Xn = Mg, Zn) phosphors.

Despite extensive research on the photoluminescence properties of Bi ions, the origins of their emission and excitation bands remain elusive. Herein, we present a comprehensive analysis of the photoluminescence properties of Bi-activated LuXnGaO (Xn = Mg, Zn), elucidating the underlying factors governing the intra-ionic and extra-ionic electronic transitions. By integrating crystal structure data and spectroscopic data analyses with semi-empirical formula calculations, the origins of excitation and emission states were elucidated.

Mixed Selectivity Coding of Content-Temporal Detail by Dorsomedial Posterior Parietal Neurons.

The dorsomedial posterior parietal cortex (dmPPC) is part of a higher-cognition network implicated in elaborate processes underpinning memory formation, recollection, episode reconstruction, and temporal information processing. Neural coding for complex episodic processing is however under-documented. Here, we recorded extracellular neural activities from three male rhesus macaques () and revealed a set of neural codes of "neuroethogram" in the primate parietal cortex.

Alkali-Etched NiCoAl-LDH with Improved Electrochemical Performance for Asymmetric Supercapacitors.

Hydrotalcite, first found in natural ores, has important applications in supercapacitors. NiCoAl-LDH, as a hydrotalcite-like compound with good crystallinity, is commonly synthesized by a hydrothermal method. Al3+ plays an important role in the crystallization of hydrotalcite and can provide stable trivalent cations, which is conducive to the formation of hydrotalcite.

Visual ratiometric optical thermometer with high sensitivity and excellent signal discriminability based on LiScSiO:Ce, Tb thermochromic phosphor.

Developing optical thermometer phosphors with high sensitivity, high signal discriminability and strong fluorescence intensity is ongoing. A dual-emitting thermochromic phosphor, LiScSiO:Ce, Tb, was successfully synthesized via solid-state reaction method. The crystal structure, electronic structure, luminescent performance and thermal luminescence behaviors as well as the luminescence mechanism of LiScSiO:Ce, Tb were systematically investigated.

Reconfigurable neuromorphic memristor network for ultralow-power smart textile electronics.

Neuromorphic computing memristors are attractive to construct low-power- consumption electronic textiles due to the intrinsic interwoven architecture and promising applications in wearable electronics. Developing reconfigurable fiber-based memristors is an efficient method to realize electronic textiles that capable of neuromorphic computing function. However, the previously reported artificial synapse and neuron need different materials and configurations, making it difficult to realize multiple functions in a single device.

Energy Transfer from Pr to Gd and Upconversion Photoluminescence Properties of YOF:Pr, Gd.

Upconversion materials have numerous potential applications in light energy utilization due to their unique optical properties. The use of visible light excitation to obtain ultraviolet emission is a promising technology with broad application prospects, while relevant research is absent. A series of Pr, Gd doped YOF phosphors were synthesized by traditional solid-state reaction.

Design of a nitridoalumosilicate red phosphor synthesized under mild conditions.

Developing nitridosilicate red phosphors under mild synthesis conditions is important for regulating the emission quality of white light-emitting diodes (WLEDs). Based on the thermodynamic theory and crystal structure chemistry for the synthesis of nitridosilicates, the Gibbs free energy variation of a hybrid system can be made more negative by reducing the proportion of SiN and increasing the proportion of MN and AlN, enabling the formation of new nitridosilicates under mild conditions. Therefore, a general chemical formula MSiAlN was proposed for the design of nitridosilicate red phosphors prepared under mild conditions, where M is an alkaline earth metal ion; > ; ≥ ; 1 ≤ ≤ 3; + 2 = 3 + 3; - = 2 + 2; and is a positive integer.

Weighted gene co-expression network analysis identifies dysregulated B-cell receptor signaling pathway and novel genes in pulmonary arterial hypertension.

Background: Pulmonary arterial hypertension (PAH) is a devastating cardio-pulmonary vascular disease in which chronic elevated pulmonary arterial pressure and pulmonary vascular remodeling lead to right ventricular failure and premature death. However, the exact molecular mechanism causing PAH remains unclear.

Methods: RNA sequencing was used to analyze the transcriptional profiling of controls and rats treated with monocrotaline (MCT) for 1, 2, 3, and 4 weeks.

CNT/PVDF Composite Coating Layer on Cu with a Synergy of Uniform Current Distribution and Stress Releasing for Improving Reversible Li Plating/Stripping.

The uncontrollable formation of polymorphous Li deposits, e.g., whiskers, mosses, or dendrites resulting from nonuniform interfacial current distribution and internal stress release in the upward direction on the conventional current collector (e.

Defect-induced Ce sites preferences and multilevel concentration quenching of a high-efficiency cyan phosphor for high-quality full-visible-spectrum wLED.

Currently, the efficient way to synthesize white light-emitting diodes (WLEDs) is combining a near-ultraviolet (n-UV, 380-420 nm) emitting LED chip with tricolor (red, green, and blue) emitting phosphors. However, further improving the color rendering index (CRI) for WLEDs is hindered by the absence of cyan components. Hence, a series of high-efficiency and continuously tunable Ce,Gd-doped CaScBO (CSBO) blue-cyan phosphors with an orthorhombic structure were successfully developed by a high-temperature solid-state reaction method.

Meta-analysis of Proton Pump Inhibitors in the Treatment of Pharyngeal Reflux Disease.

The present study aimed to examine the safety and healing effects of proton pump inhibitors (PPIs) in people with laryngopharyngeal reflux disease (LPRD). To find all relevant studies published before April 1, 2022, we searched the PubMed, Embase, Web of Science, Clinical Trials, Cochrane Library, CNKI, and Wanfang databases. For SLE, we looked for all randomized controlled clinical trials related to PPIs versus placebo-controlled treatment of LPRD.

Multiple Charge Transfer Bands Induced Broad Excitation Eu Red Emission in a Vanadium Phosphate System for White Light-Emitting Diodes.

In order to realize broad excitation and narrow emission red light phosphor, a new vanadium phosphate BaBiVPO was selected as a host for Eu. Monitored at 619 nm, a wide band from 240 to 400 nm could be observed and inferred to be composed of Eu-O and V-O charge transfer bands, which could make it match well with the UV chip and the blue chip along with the characteristic excitation of Eu at 465 nm. Under 354 nm excitation, the sample could emit high color purity red light, and the thermal quenching integral intensity showed good thermal stability.

MgSiO/Si-Coated Disproportionated SiO Composite Anodes with High Initial Coulombic Efficiency for Lithium Ion Batteries.

Silicon monoxide (SiO) is considered as one of the most promising anode material candidates for next-generation high-energy-density lithium ion batteries (LIBs) due to its high specific capacity and relatively lower volume expansion than that of Si. However, a large number of irreversible products are formed during the first charging and discharging process, resulting in a low initial Coulombic efficiency (ICE) of SiO. Herein, we report an economical and convenient method to increase the ICE of SiO without sacrificing its specific capacity by a solid reaction between magnesium silicide (MgSi) and micron-sized SiO.

Efficacy and safety of ambroxol hydrochloride in the treatment of secretory otitis media: a systematic review and meta-analysis.

Background: Secretory otitis media is a very common nonsuppurative inflammatory disease in otorhinolaryngology. Ambroxol hydrochloride helps to improve ciliary movement in the ear canal and promote the dissolution and discharge of secretions. However, its effect still lacks systematic evaluation.

MgGdSiO:Ce, Mn: A Dual-Excitation Temperature Sensor.

A novel apatite-based phosphor MgGdSiO[MgGd(SiO)O]:Ce, Mn was designed and successfully synthesized by a solid-state reaction. Based on the different luminescence properties under 298 and 340 nm excitations, its potential application as a dual-excitation luminescent ratiometric thermometer was studied in detail. Under the excitations of 298 and 340 nm, the fluorescent intensity ratio of Ce and Mn is linearly correlated in the temperature range of 303-473 K.

Low-Trap-Density CsPbX Film for High-Efficiency Indoor Photovoltaics.

The continuous advancement of the Internet of Things (IoT) and photovoltaic technology has promoted the development of indoor photovoltaics (IPVs) that powers wireless devices. Nowadays, the CsPbX perovskite has received widespread attention because of its high power conversion efficiency (PCE) in an indoor environment and suitable band gap for IPVs. In this work, we regulated the thickness of the photoactive layer (to optimize the carrier transport process without affecting indoor absorption) and bromine substitution (to adjust the band gap and improve the quality of the film) to reduce trap-assisted carrier recombination.

Industrial scale production of fibre batteries by a solution-extrusion method.

Fibre batteries are of significant interest because they can be woven into flexible textiles to form compact, wearable and light-weight power solutions. However, current methods adapted from planar batteries through layer-by-layer coating processes can only make fibre batteries with low production rates, which fail to meet the requirements for real applications. Here, we present a new and general solution-extrusion method that can produce continuous fibre batteries in a single step at industrial scale.

Lithium/Graphene Composite Anode with 3D Structural LiF Protection Layer for High-Performance Lithium Metal Batteries.

Lithium metal batteries (LMBs) are a promising candidate for next-generation energy storage devices. However, the high irreversibility and dead Li accumulation of the lithium metal anode caused by its fragile original solid electrolyte interface (SEI) seriously hinder the practical application of LMBs. Herein, a facile slurry-coating and one-step thermal fluorination reaction method is proposed to construct the 3D structural LiF-protected Li/G composite anode.

Laser-induced dynamic alignment and nonlinear-like optical transmission in liquid suspensions of 2D atomically thin nanomaterials.

Nonlinear optical property of atomically thin materials suspended in liquid has attracted a lot of attention recently due to the rapid development of liquid exfoliation methods. Here we report laser-induced dynamic orientational alignment and nonlinear-like optical response of the suspensions as a result of their intrinsic anisotropic properties and thermal convection of solvents. Graphene and graphene oxide suspensions are used as examples, and the transition to ordered states from initial optically isotropic suspensions is revealed by birefringence imaging.

Novel narrow-band blue light-emitting phosphor of Eu-activated silicate used for WLEDs.

Owing to the broad application scope of phosphors for light and display, the development of narrow-band light-emitting phosphors has recently gained considerable research attention. In this study, a new type of narrow-band blue light-emitting phosphor, RbHfSiO:Eu, with a full width at half maximum (FWHM) of 64 nm was synthesized successfully. Upon the near visible ultraviolet (NUV) light excitation, the internal quantum efficiency of RbHfSiO:Eu was 68%.