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Engineered Extracellular Vesicles
Extracellular vesicles (EVs)‐based tumor immunotherapy has usually suffered from the limited cross presentation of tumor‐associated antigen by dendritic cells (DCs). In article number 2303541, Jun Hu, Xiangliang Yang, and co‐workers propose a straightforward engineering strategy to construct heat shock proteins 70 (HSP70) highly expressed EVs, which could capture...
Extracellular vesicles (EVs) have emerged as potential tools for tumor‐target therapy accompanied with activating anticancer immune responses by serving as an integrated platform, but usually suffered from the limited cross presentation of tumor‐associated antigen by dendritic cells (DCs). Here, a straightforward engineering strategy to construct heat shock proteins 70 (HSP70) highly expressed EVs...
Pressure‐stabilized high‐entropy sulfide (FeCoNiCuRu)S2 (HES) is proposed as an anode material for fast and long‐term stable lithium/sodium storage performance (over 85% retention after 15 000 cycles @10 A g−1). Its superior electrochemical performance is strongly related to the increased electrical conductivity and slow diffusion characteristics of entropy‐stabilized HES. The reversible conversion...
Aqueous zinc‐ion batteries (ZIBs) have been extensively studied due to their inherent safety and high energy density for large‐scale energy storage. However, the practical application is significantly limited by the growing Zn dendrites on metallic Zn anode during cycling. Herein, an environmental biomolecular electrolyte additive, fibroin (FI), is proposed to guide the homogeneous Zn deposition and...
The development of hydrogen sensors is of paramount importance for timely leak detection and remains a crucial unmet need. Palladium‐based materials, well known as hydrogen sensors, still suffer from poisoning and deactivation. Here, a hybrid hydrogen sensor consisting of a Pd nanocluster (NC) film, a metal–organic framework (MOF), and a polymer, are proposed. The polymer coating, as a protection...
Probiotic Escherichia coli Nissle 1917 (EcN) are employed as a bioreactor for intracellularly synthesizing tellurium nanorods (TeNRs) providing a biohybrid therapeutic platform (Te@EcN) for the elimination of advanced malignant tumor by photothermal immunotherapy. Te@EcN is found to possess superior photothermal property upon near‐infrared irradiation, and can efficiently accumulate and retain in...
Energy shortages and greenhouse effects are two unavoidable problems that need to be solved. Photocatalytically converting CO2 into a series of valuable chemicals is considered to be an effective means of solving the above dilemmas. Among these photocatalysts, the utilization of black phosphorus for CO2 photocatalytic reduction deserves a lightspot not only for its excellent catalytic activity through...
Exploring signal amplification strategies to enhance the sensitivity of lateral flow immunoassay (LFIA) is of great significance for point‐of‐care (POC) testing of low‐concentrated targets in the field of in vitro diagnostics. Here, a highly‐sensitive LFIA platform using compact and hierarchical magneto–fluorescent assemblies as both target‐enrichment substrates and optical sensing labels is demonstrated...
The high‐temperature molten‐salt method is an important inorganic synthetic route to a wide variety of morphological phenotypes. However, its utility is limited by the fact that it is typically incapable of producing ultrathin (<5 nm diameter) nanowires, which have a crucial role in novel nanotechnology applications. Herein, a rapid molten salt‐based synthesis of sub‐5‐nm‐sized nanowires of hexagonal...
In article number 1907029, Jianying Huang, Jun Hu, Yuekun Lai, Yuxin Tang, and co‐workers reveal a correlation between the oxygen evolution reaction overpotential and the cobalt‐based electrode composition in an electrospinning “Microparticles‐in‐Spider Web” superstructure electrode, leading to remarkable electrocatalytic activity.
Sluggish kinetics of the multielectron transfer process is still a bottleneck for efficient oxygen evolution reaction (OER) activity, and the reduction of reaction overpotential is crucial to boost reaction kinetics. Herein, a correlation between the OER overpotential and the cobalt‐based electrode composition in a “Microparticles‐in‐Spider Web” (MSW) superstructure electrode is revealed. The overpotential...
The atomic structure of free‐standing graphene comprises flat hexagonal rings with a 2.5 Å period, which is conventionally considered the only atomic period and determines the unique properties of graphene. Here, an unexpected highly ordered orthorhombic structure of graphene is directly observed with a lattice constant of ≈5 Å, spontaneously formed on various substrates. First‐principles computations...
In article number 1902637, Guosheng Shi, Yi Zhang, and co‐workers discover an orthorhombic crystal of graphene with an ≈5 Å period formed on various substrates, which can be applied to control the epitaxial self‐assembly of amyloid peptides. First‐principle computations show that this atomic structure can be attributed to dipoles between the graphene surface and substrates.
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