Adma

Nonreciprocal topological edge states based on external magnetic bias have been regarded as a panacea for genuine unidirectional wave transport, showing superior robustness over topological states with preserved time-reversal symmetry. However, fast and efficient reconfigurability of their trajectory has remained a formidable challenge due to the difficulty in controlling the spatial distribution of magnetic fields over large areas and short times. Here, we solve this vexing issue by leveraging the rich topology of unitary scattering networks, and achieve fast steering of nonreciprocal topological transport at an interface between a Chern and an anomalous topological insulator, without having to control a magnetic field...

Rechargeable all-solid-state lithium metal batteries (ASSLMBs) utilizing inorganic solid-state electrolytes (SSEs) are promising for electric vehicles and large-scale grid energy storage. However, the Li dendrite growth in SSEs still constrains the practical utility of ASSLMBs. To achieve a high dendrite-suppression capability, SSEs must be chemically stable with Li, possess fast Li transfer kinetics, and exhibit high interface energy. Herein, we design a class of low-cost, eco-friendly, and sustainable oxyhalide-nitride solid electrolytes (ONSEs), denoted as Lix Ny Iz -qLiOH (where x = 3y + z, 0 ≤ q ≤ 0...

Slippery surfaces, which originate in nature with special wettability, have drawn a great deal of attention for both fundamental research and practical applications in a variety of fields due to their unique characteristics of super-low liquid friction and adhesion. Although the research of bioinspired slippery surfaces is in its infancy, it is a rapidly growing and enormously promising field. Herein, we present a systematic review of recent progress in bioinspired slippery surfaces, beginning with a brief introduction of several typical creatures with slippery property in nature...

The processing of visual information occurs mainly in the retina, and the retinal preprocessing function greatly improves the transmission quality and efficiency of visual information. The artificial retina system provides a promising path to efficient image processing. Here, we propose graphene/InSe/h-BN heterogeneous structure, which exhibits negative and positive photoconductance effects by altering the strength of a single wavelength laser. Moreover, we present a modified theoretical model based on the power-dependent photoconductivity effect of laser: <mml:math xmlns:mml="https://www...

Biological olfaction relies on a large number of receptors that function as sensors to detect gaseous molecules. It has been challenging to realize artificial olfactory systems that contain similarly large numbers of sensory materials. We show that combinatorial materials processing with vapor deposition can be used to fabricate large arrays of distinct chemiresistive sensing materials. By combining these with light-emitting diodes, we obtain an array of chemiresistively-modulated light-emitting diodes, or ChemLEDs, that permit a simultaneous optical read-out in response to an analyte...

Although evidence indicates that the abnormal accumulation of α-synuclein (α-syn) in dopamine neurons of the substantia nigra is the main pathological feature of Parkinson's disease (PD), no compounds that have both α-syn anti-aggregation and α-syn degradation functions have been successful in treating the disease in the clinic. Here, we show that black phosphorus nanosheets (BPNSs) interact directly with α-syn fibrils to trigger their disaggregation for PD treatment. Moreover, BPNSs have a specific affinity for α-syn through van der Waals forces...

An abrupt cessation of antidepressant medication can be challenging due to the appearance of withdrawal symptoms. A slow hyperbolic tapering of an antidepressant, such as citalopram hydrobromide (CHB), can mitigate the withdrawal syndrome. However, there are no viable dosage forms on the market to implement the tapering scheme. A solution using a modular design approach to produce flexible and accurate doses of CHB is proposed. This design consists of two parts: (1) a module with a fixed amount of preloaded CHB in a freeze-dried polymer matrix, and (2) fine-tuning the CHB dose by inkjet printing...

Ultrapure deep-blue emitters are in high demand for organic light-emitting diodes (OLEDs). Although color coordinates serve as straightforward parameters for assessing color purity, precise control over the maximum wavelength and full-width at half-maximum is necessary to optimize OLED performance, including luminance efficiency and luminous efficacy. Multiple-resonance (MR) emitters are promising candidates for achieving ideal luminescence properties; consequently, a wide variety of MR frameworks have been developed...

Brain-inspired neuromorphic computing has attracted widespread attention owing to its ability to perform parallel and energy-efficient computation. However, the synaptic weight of amorphous/polycrystalline oxide based memristor usually exhibits large nonlinear behaviour with high asymmetry, which aggravates the complexity of peripheral circuit system.[6-10] Controllable growth of conductiv filaments is highly demanded for achieving the highly-linear conductance modulat ion. However, the stochastic behaviour of the filament growth in commonly used amorphous/polycrystalline oxide memristor makes it very challenging...

The droplet-based electricity generator (DEG) has facilitated efficient droplet energy harvesting, yet diversifying its applications necessitates the incorporation of various to the DEG. In this study, we first propose a methodology for advancing the DEG by substituting its conventional metallic electrode with electrically conductive water electrode (WE), which is spontaneously generated during the operation of the DEG with operating liquid. Due to the inherent conductive and fluidic nature of water, the introduction of the WE maintains the electrical output performance of the DEG while imparting functionalities such as high transparency and flexibility...

Plasmonic semiconductors with broad spectral response hold significant promise for sustainable solar energy utilization. However, their surface inertness limits the photocatalytic activity. Herein, we propose a novel approach to improve the body crystallinity and increase the surface oxygen vacancies of plasmonic tungsten oxide by the combination of hydrochloric acid regulation and light irradiation, which can promote the adsorption of tert-butyl alcohol (TBA) on plasmonic tungsten oxide and overcome the hindrance of the surface depletion layer in photocatalytic alcohol dehydration...

Lithium-ion batteries (LIBs), in which lithium ions function as charge carriers, are considered the most competitive energy storage devices due to their high energy and power density. However, battery materials, especially with high capacity undergo side reactions and changes that result in capacity decay and safety issues. A deep understanding of the reactions that cause changes in the battery's internal components and the mechanisms of those reactions is needed to build safer and better batteries. This review focuses on the processes of battery failures, with voltage and temperature as the underlying factors...

Developing efficient and robust electrocatalysts toward the oxygen evolution reaction (OER) is critical for proton exchange membrane water electrolysis (PEMWE). RuO2 possesses intrinsically high OER activity, but the concurrent electrochemical dissolution leads to rapid deactivation. Here we report a unique RuO2 catalyst containing metallic Ru-Ru interactions (m-RuO2 ), which maintains stable in practical PEMWE for 100 h at 60 °C and 1 A cm-2 . Experimental and theoretical investigations suggest that the presence of Ru-Ru interactions significantly increases the energy barrier for the formation of RuO2 (OH)2 , which is a key intermediate for Ru dissolution, and hence substantially mitigates the electrochemical corrosion of m-RuO2 ...

Self-healing microelectronics are needed for costly applications with limited or without access. They are needed in fields such as space exploration to increase lifetime and decrease both costs and the environmental impact. While advanced self-healing mechanisms for polymers are numerous, practical ways for self-healing in metal films have yet to be found. A concept for an autonomous intrinsic self-healing metallic film system was developed, allowing the healing of cracks in metallic films on flexible substrates...

BACKGROUND: Ionizing radiation-induced lung injury is caused by the initial inflammatory reaction and leads to advanced fibrosis of lung tissue. Adipose-derived stem cells (ASCs) are a type of mesenchymal stem cell that can differentiate into various functional cell types with broad application prospects in the treatment of tissue damage. The purpose of this study was to explore the protective effect of ASCs against radiation-induced lung injury and to provide a novel basis for prevention and treatment of radiation-induced lung injury...

Ternary copper (Cu) halides are promising candidates for replacing toxic lead halides in the field of perovskite light-emitting diodes (LEDs) toward practical applications. However, the electroluminescent performance of Cu halide-based LEDs remains a great challenge due to the presence of serious nonradiative recombination and inefficient charge transport in Cu halide emitters. Here, we report the rational design of host-guest [dppb]2 Cu2 I2 (dppb denotes 1,2-bis[diphenylphosphino]benzene) emitters and its utility in fabricating efficient Cu halide-based green LEDs that show a high external quantum efficiency (EQE) of 13...

The interface between electrodes and neural tissues plays a pivotal role in determining the efficacy and fidelity of neural activity recording and modulation. While considerable efforts have been made to improve the electrode-tissue interface, the majority of studies have primarily concentrated on the development of biocompatible neural electrodes through abiotic materials and structural engineering. In this study, we present an approach that seamlessly integrates abiotic and biotic engineering principles into the electrode-tissue interface...

Fine-tuning nucleation and growth of colloidal liquid crystalline (LC) droplets, also known as tactoids, is highly desirable in both fundamental science and technological applications. However, the tactoid structure results from the trade-off between thermodynamics and non-equilibrium kinetics effects, and controlling liquid-liquid crystalline phase separation (LLCPS) in these systems is still work in progress. Here we introduce a single-step strategy to obtain a rich palette of morphologies for tactoids formed via nucleation and growth within an initially isotropic phase exposed to a gradient of depletants...

Photocatalytic CO2 reduction to high-value-added C2+ products presents significant challenges, which is attributed to the slow kinetics of multi-e- CO2 photoreduction and the high thermodynamic barrier for C-C coupling. Incorporating redox-active Co2+ /Ni2+ cations into lead halide photocatalysts has high potentials to improve carrier transport and introduce charge polarized bimetallic sites, addressing the kinetic and thermodynamic issues, respectively. In this study, we have developed a coordination-driven synthetic strategy to introduce 3d transition metals into the interlamellar region of layered organolead iodides with atomic precision...

DNA double-strand breaks (DSBs) yield highly determines radiotherapy efficacy. However, improving the inherent radiosensitivity of tumour DNA to promote radiation-induced DSBs remains a challenge. Using theoretical and experimental models, we discover the underexplored impact of Z-DNA conformations on radiosensitivity, yielding higher DSBs than other DNA conformations. Thereout, we propose a radiosensitization strategy focused on inducing Z-DNA conformation, utilizing CBL@HfO2 nanocapsules loaded with a Z-DNA inducer CBL0137...