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The pursuit of stable and efficient electrocatalysts toward seawater oxidation is of great interest, yet it poses considerable challenges. Herein, the utilization of Cr‐doped CoFe‐layered double hydroxide nanosheet array is reported on nickel‐foam (Cr‐CoFe‐LDH/NF) as an efficient electrocatalyst for oxygen evolution reaction in alkaline seawater. The Cr‐CoFe‐LDH/NF catalyst can achieve current densities...
Mechanically sensitive tissues (e.g., skeletal muscles) greatly need mechanical stimuli during the development and maturation. The extracellular matrix (ECM) mediates these signals through nonlinear viscoelasticity of collagen networks that are predominant components of the ECM. However, the interactions between cells and ECM form a feedback loop, and it has not yet been possible to determine the...
In this work, high‐performance epoxy resin (EP) composites with simultaneous excellent thermal conductivity (TC) and outstanding electromagnetic shielding properties are fabricated through the structural synergy of 1D carbon nanotubes and 2D silver‐modified boron nitride nanoplates (CNT/AgBNs) to erect microscopic 3D networks on long‐range carbon fiber (CF) felt skeletons. The line‐plane combination...
Dion‐Jacobson perovskite (DJP) films suffer from the high structural disorder and non‐compact morphology, leading to inefficient and unstable solar cells (SCs). Here, how the alkyl chains of alkylammonium pseudohalide additives including methylammonium thiocyanate (MASCN) and ethylammonium thiocyanate (EASCN), and propylammonium thiocyanate (PASCN), impact the microstructures, optoelectronic properties...
Sustained oral uncoupler 2,4‐dinitrophenol (DNP) administration exerts prominent anti‐obesity effects, but the adipose tissue off‐target disadvantage leads to systemic adverse effects. A novel non‐cardiotoxicity DNP delivery method using a biocompatible microneedles patch containing the amphiphilic tetradecanoic acid‐DNP ester (TADNP) is described, which is synthesized via esterification on the phenolic...
Perovskite solar cells (PSCs) based on the SnO2 electron transport layer (ETL) have achieved remarkable photovoltaic efficiency. However, the commercial SnO2 ETLs show various shortcomings. The SnO2 precursor is prone to agglomeration, resulting in poor morphology with numerous interface defects. Additionally, the open circuit voltage (Voc) would be constrained by the energy level mismatch between...
Microwave Absorption Materials
The M‐BaM@N‐reduced graphene oxide (RGO) material displays excellent microwave absorption capacity due to its mesoporous structure, in sites formed from Fe3O4 and N doped reduced graphene oxide. The synergistic effect among these nano‐micro structures realizes efficient energy conversion by weakening the incoming wave to reflected waves with lower intensity and different...
Nanocomposites with hierarchical pore structure hold great potentials for applications in the field of microwave‐absorbing materials because of their lightweight and high‐efficiency absorption properties. Herein, M‐type barium ferrite (BaM) with ordered mesoporous structure (M‐BaM) is prepared via a sol–gel process enhanced by mixed anionic and cationic surfactants. The surface area of M‐BaM is enhanced...
Self‐Boosting Vaccination
In article number 2207892, Xiang Gao, Bo Liu, Jing Gao, and co‐workers propose a pulsatile antigen released core‐shell microparticle namely LbL/MPs to achieve self‐boosting vaccination after single‐injection and to simulate multi‐injection immunization. LbL/MPs show multiple antigen release characteristics and can effectively induce immune response. The core‐shell microstructure...
Vaccination is among the most effective ways to prevent infectious diseases. Subunit vaccines are safe but usually require multiple booster shots, which may lead to immunity loss and economic consume. In this study, a self‐boosting vaccine is developed based on the pulsatile release of antigen from the core–shell microparticle after single‐injection immunization. Self‐healing technology applied to...
Developing efficient oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis is still a big challenge. Herein, a facile one‐pot approach is reported to synthesize RuO2‐incorporated NiFe‐metal organic framework (RuO2/NiFe‐MOF) with unique nanobrick‐nanosheet heterostructure as precatalyst. Driven by electric field, the RuO2/NiFe‐MOF dynamically reconstructs into RuO2 nanoparticles‐anchored...
Herein, a strategy of synergetic dual‐metal‐ion centers to boost transition‐metal‐based metal organic framework (MOF) alloy nanomaterials as active oxygen reduction reaction (ORR) electrocatalysts for efficient hydrogen peroxide (H2O2) generation is proposed. Through a facile one‐pot wet chemical method, a series of MOF alloys with unique Ni–M (M–Co, Cu, Zn) synergetic centers are synthesized, where...
Photothermal therapy (PTT) as a noninvasive hyperthermia exhibits high potential for anti‐cancer treatments. The explosion of efficient photothermal agents (PTAs) keeps developing rapidly. MXene stands out due to its intriguing structures, fantastic photodynamic properties, and good biocompatibility. However, the potential of MXenes has not been sufficiently explored in PTT. Its versatile chemical...
With the development of clean hydrogen energy, the cost effective and high‐performance hydrogen evolution reaction (HER) electrocatalysts are urgently required. Herein, a green, facile, and time‐efficient Ru doping synergistic with air‐plasma treatment strategy is reported to boost the HER performance of CoNi‐layered double hydroxide (LDH) nanotube arrays (NTAs) derived from zeolitic imidazolate framework...
Grain boundaries (GBs) play a central role in the fracture of polycrystals. However, the complexity of GBs and the difficulty in monitoring the atomic structure evolution during fracture greatly limit the understanding of the GB mechanics. Here, in situ aberration‐corrected scanning transmission electron microscopy and density functional theory calculations are combined to investigate the fracture...
Accurately manipulating the electronic structure of metal active sites under working conditions is central to developing efficient and stable electrocatalysts in industrial water‐alkali electrolyzers. However, the lack of an intuitive means to capture the evolution of metal sites during the reaction state inhibits the manipulation of its electronic structure. Here, atomically dispersed Ru single‐sites...
Transition‐metal selenides (TMSs) have emerged as prospective anode materials for sodium ion batteries (SIBs), owing to their considerable theoretical capacity and intrinsic high electronic conductivity. Whereas, TMSs still suffer from poor rate capability and inferior cycling stability induced by sluggish kinetics and severe volume changes during de/sodiation processes. Herein, a hierarchical composite...
Ordered bio‐inorganic hybridization has evolved for the generation of high‐performance materials in living organisms and inspires novel strategies to design artificial hybrid materials. Virus‐like particles (VLPs) are attracting extensive interest as self‐assembling systems and platforms in the fields of biotechnology and nanotechnology. However, as soft nanomaterials, their structural stability remains...
Thiolate‐protected nanoclusters with different charge states usually show similar structure frameworks but different electronic configurations, which are proved to dramatically affect their properties such as magnetism, photoluminescence, and catalytic activity. Until now, few nanoclusters with alterable charge states have been reported and only some of them are structurally solved, limiting the in‐depth...
T cell based‐immunotherapy has been a powerful strategy to eradicate tumor cells in clinical trials. Effectively expanding the therapeutic T cells for clinical demand is still a challenge. Here, artificial antigen‐presenting scaffolds are created for T cell ex vivo expansion. The antigen‐presenting hybrid colloidal crystal clusters (HCCCs) with multiple stimuli are generated by internal encapsulation...
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