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The treatment of chronic wounds still presents great challenges due to being infected by biofilms and the damaged healing process. The current treatments do not address the needs of chronic wounds. In this study, a highly effective dressing (Dox‐DFO@MN Hy) for the treatment of chronic wounds is described. This dressing combines the advantages of microneedles (MNs) and hydrogels in the treatment of...
Te‐based materials with excellent electrical conductivity and ultra‐high volume specific capacity have attracted much attention for the cost‐efficient aqueous Zn batteries. However, the construction of functional structures with mild volume expansion and suppressed shuttle effects, enabling an expanded lifespan, is still a challenge for conversion‐type materials. Herein, the carbon‐coated zinc telluride...
Aqueous Zn Batteries
In article number 2304916, Zichao Yan, Zhiqiang Zhu, and co‐workers present a carbon coating strategy that aims to overcome the volume variation and intermediates dissolution of the ZnTe cathode in aqueous zinc‐tellurium batteries. The rationally designed carbon coated ZnTe nanowires deliver a high specific capacity of 586 mAh g−1 at 0.1 A g−1 and maintain more than 250 mAh g−1...
Design of effective nanodrugs to modulate the immunosuppression of tumor microenvironment is a desirable approach to boost the clinical tumor‐therapeutic effect. Supramolecular nanomicelles PolyMN‐TO‐8, which are constructed by self‐assembling supramolecular host MTX‐MPEG2000, guest NPX‐2S, and TO‐8 through hydrophobic forces, have excellent stability and responsiveness to carboxylesterase and glutathione...
Nickel (Ni) based materials with non‐metal heteroatom doping are competitive substitutes for platinum group catalyst toward alkaline hydrogen oxidation reaction (HOR). However, the incorporation of non‐metal atom into the lattice of conventional fcc phase Ni can easily trigger a structural phase transformation, forming hcp phase nonmetallic intermetallic compounds. Such tangle phenomenon makes it...
Isolation‐Free Extracellular Vesicle Analysis
Tony Hu and co‐workers develop a rapid in situ copper nanoshell growth protocol using a gold nanorod seed enhanced plasmonic scattering, as the nanorod lattice structure promotes monocrystalline growth to generate geometries with superior plasmonic properties. Correspondingly, they show that a non‐disruptive copper nanoshell‐enhanced immunoassay (Cu‐NEI)...
Sensitive detection of extracellular vesicles (EVs) as emerging biomarkers has shown great promises for disease diagnosis. Plasmonic metal nanostructures conjugated with molecules that bind specific biomarker targets are widely used for EVs sensing but involve tradeoffs between particle‐size‐dependent signal intensity and conjugation efficiency. One solution to this problem would be to induce nucleation...
Aluminum‐Ion Batteries
In article number 2203236, Hongsen Li and co‐workers develop a Sn‐based alloy (Co3Sn2) as a type of aluminum‐ion battery positive electrode, revealing a bimetallic activated center alloying reaction aluminum storage mechanism. Both Co and Sn act as activation centers and alloy with Al to generate AxSn and AlyCo, respectively, which is fundamentally different from what occurs...
Aluminum is the most abundant metal element in the Earth's crust, thus developing the rechargeable aluminum‐ion batteries (AIBs) provides an ideal opportunity to realize cells with pleasing energy‐to‐price ratios. However, the further development of AIBs is plagued by the scarcity of suitable positive electrode materials. Here, for the first time, a tin‐based alloy positive electrode material for...
The sodium‐ion battery (SIB) has attracted ever growing attention as a promising alternative of the lithium‐ion battery (LIB). Constructing appropriate anode materials is critical for speeding up the application of SIB. This review aims at guiding anode design from the material's perspective, and specifically focusing on solid solution metal chalcogenide anode. The sodium ion storage mechanisms of...
The environmental pollution has become a serious issue because the pollutants can cause permanent damage to the DNA, nervous system, and circulating system, resulting in various incurable diseases, such as organ failure, malformation, angiocardiopathy, and cancer. The effective detection of environmental pollutants is urgently needed to keep them far away from daily life. Among the reported pollutant...
Alkali metal (Li, Na, K) ion batteries with high energy density are urgently required for large‐scale energy storage applications while the lack of advanced anode materials restricts their development. Recently, Bi‐based materials have been recognized as promising electrode candidates for alkali metal‐ion batteries due to their high volumetric capacity and suitable operating potential. Herein, the...
The rational design of catalytically active sites in porous materials is essential in electrocatalysis. Herein, atomically dispersed Fe‐Nx sites supported by hierarchically porous carbon membranes are designed to electrocatalyze the hydrazine oxidation reaction (HzOR), one of the key techniques in electrochemical nitrogen transformation. The high intrinsic catalytic activity of the Fe‐Nx single‐atom...
In article number 2002203, Tian Sheng, Shu‐Hui Sun, Jiayin Yuan, and co‐workers propose and verify atomically dispersed pyrrole‐type Fe‐N4 sites supported on hierarchically porous carbon membranes as real active sites for the electrochemical hydrazine oxidation reaction (HzOR), which will open up the future exploration of the metal‐Nx catalysts for HzOR in fuel cells and beyond.
Rechargeable Zn/MnO2 batteries using mild aqueous electrolytes are attracting extensive attention due to their low cost, high safety, and environmental friendliness. However, the charge‐storage mechanism involved remains a topic of controversy so far. Also, the practical energy density and cycling stability are still major issues for their applications. Herein, a free‐standing α‐MnO2 cathode for aqueous...
Utilization of visible and near‐infrared light has always been the pursuit of photocatalysis research. In this article, an approach is developed to integrate dual plasmonic nanostructures with TiO2 semiconductor nanosheets for photocatalytic hydrogen production in visible and near‐infrared spectral regions. Specifically, the Au nanocubes and nanocages used in this work can harvest visible and near‐infrared...
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