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Reversible three‐electron redox of Cr3+/Cr6+ in layered cathode materials for rechargeable batteries is very attractive in layered cathode materials, which leads to high capacity and energy density for rechargeable batteries. However, the poor reversibility and Cr‐ion migration make it very challenging. In this work, by introducing V ions into tetrahedral sites of layer‐structured NaCrO2, reversible...
Engineering 2D nanosheets with well‐defined porous structures and their assembled heterostructure membrane is a promising method to improve osmotic energy conversion. However, it is still a great challenge to directly fabricate 2D nanosheets with regular parallel nanochannels in aqueous media. Here, the desired functional nanosheets and heterostructure membrane device are successfully prepared through...
Synthesis of anisotropic carbonaceous nano‐ and micro‐materials with well‐ordered mesoporous structures has attracted increasing attention for a broad scope of applications. Although hard‐templating method has been widely employed, overcoming the viscous forces to prepare anisotropic mesoporous materials is particularly challenging via the universal soft‐templating method, especially from sustainable...
Salinity gradient energy existing in seawater and river water is a sustainable and environmentally energy resource that has drawn significant attention of researchers in the background of energy crisis. Nanochannel membrane with a unique nano‐confinement effect has been widely applied to harvest the salinity gradient energy. Here, Janus porous heterochannels constructed from 2D graphene oxide modified...
Quantum dots (QDs) have numerous potential applications in lighting, engineering, and biomedicine. QDs are mainly excreted through the kidney due to their ultrasmall sizes; thus, the kidneys are target organs of QD toxicity. Here, an organoid screening platform is established and used to study the nephrotoxicity of QDs. Organoids are templated from monodisperse microfluidic Matrigel droplets and found...
In article number 1805552, Hua Zuo, Chengde Mao, and co‐workers describe an elegant method to assemble DNA microparticles (DNAµPs), relying on self‐assembly of multiple copies of the same, short, component DNA strand. The resulting DNAµPs can present single stranded DNA tails on their surfaces to stimulate innate immune responses and capture other single‐stranded nucleic acids.
DNA is a superb molecule for self‐assembly of nanostructures. Often many DNA strands are required for the assembly of one DNA nanostructure. For lowering the cost of synthesizing DNA strands and facilitating the assembly process, it is highly desirable to use a minimal number of unique strands for potential technological applications. Herein, a strategy is reported to assemble a series of DNA microparticles...
The photothermal effect is applied in CO2 hydrogenation to reduce the reaction temperature under illumination by encapsulating Pt nanocubes and Au nanocages into a zeolitic imidazolate framework (ZIF‐8). Under illumination, the heat generated by the photothermal effect of Au nanocages is mainly insulated in the ZIF‐8 to form a localized high‐temperature region, thereby improving the catalytic activity...
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