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Biohybrid Microrobots
In article number 2305526, Yan Zhang, Xia Dong, Feng Lv. and co‐workers constructed macrophages‐based microrobots by fusion of macrophages and metal–organic frameworks to exert tumor targeting, fluorescent navigation, and photothermal conversion. Photothermal‐enhanced pyroptosis induces adaptive immune response, achieving photothermal immunotherapy for breast tumor proliferation...
Pyroptosis‐based immunotherapy can escape drug resistance as well as inhibit metastasis. It is urgently required to develop a delivery platform to induce targeted tumor‐specific pyroptosis for cancer immunotherapy. Herein, macrophages‐based biohybrid microrobots (IDN@MC) are constructed with IR‐macrophage and decitabine‐loaded Metal‐organic frameworks (DZNPs). The integration of fluorescence photosensitizers...
Aqueous Zn‐ion batteries are the ideal candidate for large‐scale energy storage systems owing to their high safety and low cost. However, the uncontrolled deposition and parasitic reaction of Zn metal anode hinder their commercial application. Here, the 2D metal‐organic‐framework (MOF) nanoflakes covered on the surface of Zn are proposed to enable dendrite‐free for long lifespan Zn metal batteries...
Semiconductor‐based step‐scheme (S‐scheme) heterojunctions possess many merits toward mimicking natural photosynthesis. However, their applications for solar‐to‐chemical energy conversion are hindered by inefficient charge utilization and unsatisfactory surface reactivity. Herein, two synergistic protocols are demonstrated to overcome these limitations based on the construction of a hollow plasmonic...
1D van der Waals (vdW) materials have attracted significant interest in recent years due to their giant anisotropic and weak interlayer‐coupled characters. More 1D vdW materials are urgently to be exploited for satisfying the practice requirement. Herein, the study of 1D vdW ternary HfSnS3 high‐quality single crystals grown via the chemical vapor transport technique is reported. The Raman vibration...
Electrochemical CO2 reduction reaction (CO2RR) to value‐added chemicals/fuels is an effective strategy to achieve the carbon neutral. Palladium is the only metal to selectively produce formate via CO2RR at near‐zero potentials. To reduce cost and improve activity, the high‐dispersive Pd nanoparticles on hierarchical N‐doped carbon nanocages (Pd/hNCNCs) are constructed by regulating pH in microwave‐assisted...
In order to achieve excellent electromagnetic wave (EMW) absorption properties, the microstructure design and component control of the absorber are critical. In this study, three different structures made of Mo2C/C hollow spheres are prepared and their microwave absorption behavior is investigated. The Mo2C/C double‐shell hollow spheres consisting of an outer thin shell and an inner rough thick shell...
Water/Methanol Coelectrolysis
NiCo2S4 is developed through electrochemical deposition on carbon cloth, with the surface magnetism fine‐tuned. The surface spin enhanced NiCo2S4 electrodes possess high stable bifunctional performance even in high current density in water/methanol coelectrolysis system. Hydrogen and value‐added formate are harvested on both sides of the electrodes in the membrane‐less...
Nickel based materials are promising electrocatalysts to produce hydrogen from water in alkaline media. However, the stability is of great challenge, limiting its practical material functions. Herein, a new technique for electro‐deposition flower‐like NiCo2S4 nanosheets on carbon‐cloth (CC@NiCo2S4) is proposed for energy‐saving production of H2 from water/methanol coelectrolysis at high current density...
Construction of core–shell semiconductor heterojunctions and plasmonic metal/semiconductor heterostructures represents two promising routes to improved light harvesting and promoted charge separation, but their photocatalytic activities are respectively limited by sluggish consumption of charge carriers confined in the cores, and contradictory migration directions of plasmon‐induced hot electrons...
Solid‐state Li batteries are receiving increasing attention as a prospective energy storage system due to the high energy density and improved safety. However, the high interfacial resistance between solid‐state electrolyte and electrode results in sluggish Li+ transport kinetics. To tackle the interfacial problem and prolong the cycle life of solid‐state Li batteries, a quasi‐solid‐state electrolyte...
The unstable anode/electrolyte interface (AEI) triggers the corrosion reaction and dendrite formation during cycling, hindering the practical application of zinc metal batteries. Herein, for the first time, l‐cysteine (Cys) is employed to serve as an electrolyte additive for stabilizing the Zn/electrolyte interface. It is revealed that Cys additives tend to initially approach the Zn surface and then...
Heterogeneous structures are used as energy storage devices because of their ability to accelerate charge transfer, which greatly contributes to the rate capability of devices. However, the construction of heterostructures with conspicuous electrochemical properties remains a huge challenge. In this study, a design of heterostructured Ni3Se4/CoSe2 nanospheres encapsulated by a carbon shell (Ni3Se4...
Here, a novel microfluidic test kit combining ultrahigh throughput hydrodynamic filtration and sandwich immunoassay is reported. Specifically, nano and microbeads coated with two different, noncompetitive antibodies, are used to capture the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) nucleocapsid (N) proteins simultaneously, forming larger complexes. Microfluidic filtration discards...
COVID‐19 Diagnostics
In article number 2104009, Jiang Xu, Yan Zhang, Taotao Lao, and co‐workers present a handheld microfluidic filtration platform that enables rapid, low‐cost and robust self‐testing of the SARS‐CoV‐2 virus. The cover design emphasizes its important advantages: (1) Equipment‐free handheld injection, represented by the hands manipulation; (2) Visible and easy readout: a Taichi diagram...
MnO2‐based material is one of the most promising cathode candidates of aqueous zinc‐ion batteries (ZIBs), but its commercialization is hindered by the sluggish reaction kinetics and poor structural stability. Herein, a hierarchical framework consisting of core–shell structured carbon nanotubes@K‐birnessite‐MnO2 enwrapped by graphene/carbon black bicomponent networks (CNT@KMO@GC) via a simple method...
Aqueous Zinc‐Ion Batteries
In article number 2104557, Lei Li and co‐workers develop a solution‐processed method to fabricate a hierarchical K‐birnessite‐MnO2‐carbon framework vividly depicted by the dragon flying in the clouds. The dragon with scales represents carbon nanotubes decorated by K‐birnessite‐MnO2 porous nanoflakes, the clouds stand for graphene, and the pearls in the dragon claws are carbon...
The catalytic properties of supported metal heterostructures critically depend on the design of metal sites. Although it is well‐known that the supports can influence the catalytic activities of metals, precisely regulating the metal–support interactions to achieve highly active and durable catalysts still remain challenging. Here, the authors develop a support effect in the oxide‐supported metal...
The severe charge recombination and the sluggish kinetic for oxygen evolution reaction have largely limited the application of hematite (α‐Fe2O3) for water splitting. Herein, the construction of Cu2S/Fe2O3 heterojunction and discover that the formation of covalent SO bonds between Cu2S and Fe2O3 can significantly improve the photoelectrochemical performance and stability for water splitting is reported...
In article number 2100320, Jian‐Jun Wang, Artur Braun, and co‐workers demonstrate that the formation of covalent S—O bonds between Cu2S and Fe2O3 can significantly improve the performance of the Cu2S/Fe2O3 heterojunction photoelectrode for photoelectrochemical water splitting owning to the enhanced charge separation and transfer, and reduced charge recombination rate.
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