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Recently, nonmetal NH4+ ions have attracted extensive attention for use as charge carries in the field of energy storage due to their abundant resources, environmental friendliness, and low cost. However, the development of aqueous ammonium‐ion batteries (AAIBs) is constrained by the absence of high‐voltage and long‐life materials. Herein, different tunnel‐structure MnO2 materials (α‐, β‐, and γ‐MnO...
Hierarchical self‐assembly of 2D metal‒organic layers (MOLs) for the construction of advanced functional materials have witnessed considerable interest, due to the increasing atomic utilizations and well‐defined atom‒property relationship. However, the construction of atomically precise MOLs with mono‐/few‐layered thickness through hierarchical self‐assembly process remains a challenge, mostly because...
Protein drugs hold promise in treating multiple complex diseases, including cancer. The priority of protein drug application is precise delivery of substantial bioactive protein into tumor site. Metal–organic‐framework (MOF) is widely considered as a promising carrier to encapsulate protein drug owing to the noncovalent interaction between carrier and protein. However, limited loading efficiency and...
N‐doped carbon (NC)‐encapsulated transition metal (TM) nanocomposites are considered as alternatives to Pt‐based hydrogen evolution reaction (HER) electrocatalysts; however, their poor electron transfer and mass diffusion capability at high current densities hinder their practical application. Herein, an oriented coupling strategy for the in situ grafting of ultrafine Co nanoparticle‐embedded hollow...
Insufficient bone formation and excessive bone resorption caused by estrogen deficiency are the major factors resulting in the incidence of postmenopausal osteoporosis (PMOP). The existing drugs usually fail to re‐establish the osteoblast/osteoclast balance from both sides and generate side‐effects owing to the lack of bone‐targeting ability. Here, engineered cell‐membrane‐coated nanogels PNG@mR&C...
The shell growth of large ZnSe/ZnS nanocrystals( is of great importance in the pursuit of pure‐blue emitters for display applications, however, suffers from the challenges of spectral blue‐shifts and reduced photoluminescence quantum yields. In this work, the ZnS shell growth on different‐sized ZnSe cores is investigated. By controlling the reactivity of Zn and S precursors, the ZnS shell growth can...
Cross‐scale micro‐nano structures play an important role in semiconductors, MEMS, chemistry, and cell biology. Positive photoresist is widely used in lithography due to the advantages of high resolution and environmental friendliness. However, cross‐scale micro‐nano structures of positive photoresist are difficult to flexibly pattern, and the feature resolution is limited by the optical diffraction...
Surface antibacterial coatings with outstanding antibacterial efficiency have attracted increasing attention in medical protective clothing and cotton surgical clothing. Although nanozymes, as a new generation of antibiotics, are used to combat bacteria, their catalytic performance remains far from satisfactory as alternatives to natural enzymes. Single‐atom nanodots provide a solution to the low...
Rechargeable sodium ion batteries (SIBs) have promising applications in large‐scale energy storage systems. Iron‐based Prussian blue analogs (PBAs) are considered as potential cathodes owing to their rigid open framework, low‐cost, and simple synthesis. However, it is still a challenge to increase the sodium content in the structure of PBAs and thus suppress the generation of defects in the structure...
Prussian blue analogs (PBAs) have attracted wide interest as a class of ideal cathodes for rechargeable sodium‐ion batteries due to their low cost, high theoretical capacity, and facile synthesis. Herein, a series of highly crystalline Fe‐based PBAs (FeHCF) cubes, where HCF stands for the hexacyanoferrate, is synthesized via a one‐step pyrophosphate‐assisted co‐precipitation method. By applying this...
The additive engineering strategy promotes the efficiency of solution‐processed perovskite solar cells (PSCs) over 25%. However, compositional heterogeneity and structural disorders occur in perovskite films with the addition of specific additives, making it imperative to understand the detrimental impact of additives on film quality and device performance. In this work, the double‐edged sword effects...
The low electrical conductivity and the high surface defect density of the TiO2 electron transport layer (ETL) limit the power conversion efficiency (PCE) of corresponding perovskite solar cells (PSCs). Here, the conductivity and defect modulation of the mesoporous TiO2 (mp‐TiO2) ETL via oxygen vacancy (OV) management by the reduction and oxidation treatment are reported. Reduction treatment via reducing...
High‐energy‐density Li metal batteries (LMBs) with Nickel (Ni)‐rich cathode and Li‐metal anode have attracted extensive attention in recent years. However, commercial carbonate electrolytes bring severe challenges including poor cycling stability, severe Li dendrite growth and cathode cracks, and narrow operating temperature window, especially hardly work at below −40 °C. In this work, a 2.4 m lithium...
Uranium is a key element in the preparation of nuclear fuel. An electrochemical uranium extraction technique is proposed to achieve high efficiency uranium extraction performance through HER catalyst. However, it is still a challenge to design and develop a high‐performance hydrogen evolution reaction (HER) catalyst for rapid extraction and recovery of uranium from seawater. Herein, a bi‐functional...
Nanomedicines confront various complicated physiological barriers limiting the accumulation and deep penetration in the tumor microenvironment, which seriously restricts the efficacy of antitumor therapy. Self‐propelled nanocarriers assembled with kinetic engines can translate external energy into orientated motion for tumor penetration. However, achieving a stable ultrafast permeability at the tumor...
Limited permeability in solid tumors significantly restricts the anticancer efficacy of nanomedicines. Light‐driven nanomotors powered by photothermal converting engines are appealing carriers for directional drug delivery and simultaneous phototherapy. Nowadays, it is still a great challenge to construct metal‐free photothermal nanomotors for a programmable anticancer treatment. Herein, one kind...
Mechano‐Nociceptor Systems
In article number 2200185, Ye Zhou and co‐workers develop a diffusive memristor with better behaviors of conductive filaments and higher device uniformity based on 2D h‐BN, which could be used as an artificial nociceptor to mimic biological nociceptor properties. Moreover, a self‐powered mechano‐nociceptor is demonstrated by connecting a self‐made triboelectric nanogenerator...
Solid‐state metal batteries are attracting unprecedented concern because of their high energy density and safety. However, their service life, especially at high specific density, is hindered by the undesirable reversibility of metal anodes, owing to the inhomogeneous ion distribution and awkward charge transfer dynamics at the electrode/electrolyte interface. In this work, it is well demonstrated...
The switching variability caused by intrinsic stochasticity of the ionic/atomic motions during the conductive filaments (CFs) formation process largely limits the applications of diffusive memristors (DMs), including artificial neurons, neuromorphic computing and artificial sensory systems. In this study, a DM device with improved device uniformity based on well‐crystallized two‐dimensional (2D) h...
Irradiation damage is a key issue for the reliability of semiconductor devices under extreme environments. For decades, the ionizing‐irradiation‐induced damage in transistors with silica‐silicon (SiO2‐Si) structures at room temperature has been modeled by a uniform generation of centers in the bulk silica region through the capture of irradiation‐induced holes, and an irreversible conversion from...
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