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Carbon‐supported nickel selenide (Ni0.85Se/C) hollow nanowires are prepared from carbon‐coated selenium nanowires via a self‐templating hydrothermal method, by first dissolving selenium in the Se/C nanowires in hydrazine, allowing it to diffuse out of the carbon layer, and then reacting with nickel ions into Ni0.85Se nanoplates on the outer surface of the carbon. Ni0.85Se/C hollow nanowires are employed...
The important role of p–n junction in modulation of the optoelectronic properties of semiconductors is widely cognized. In this work, for the first time the synthesis of p‐GaSe/n‐MoS2 heterostructures via van der Waals expitaxial growth is reported, although a considerable lattice mismatching of ≈18% exists. According to the simulation, a significant type II p–n junction barrier located at the interface...
In article number 1702990, Peer Fischer, Frank Neubrech, Na Liu, and co‐workers fabricate three‐dimensional palladium helices by nanoglancing angle deposition exhibiting strong circular dichroism for sensitive hydrogen detection in the flammable range. The linearity of the sensor response is significantly improved using palladiumgold hybrid helices. Such a chiral plasmonic sensor scheme is of potential...
Herein, Ni and Zn elements are doped simultaneously in MnCO3 and microspheric MnxNiyZnzCO3 is successfully obtained. Atomic mapping images reveal that the Ni and Zn elements have been successfully doped in MnCO3 and thus the prepared sample is not a mixture of MnCO3, NiCO3, and ZnCO3. It is the first time that the atomic mapping images of ternary transition metal carbonates have been demonstrated...
Fabrication of junction‐free Ag fiber electrodes for flexible organic light‐emitting diodes (OLEDs) is demonstrated. The junction‐free Ag fiber electrodes are fabricated by electrospun polymer fibers used as an etch mask and wet etching of Ag thin film. This process facilitates surface roughness control, which is important in transparent electrodes based on metal wires to prevent electrical instability...
The electrochemical reduction of carbon dioxide (CO2) is an emerging route for curbing excessive CO2 emissions and producing add‐valued chemicals. In article number 1703314, Jinlong Gong and co‐workers introduce controlled synthesis of shapecontrolled and composition‐regulatory Pd–Cu nanocatalysts by a one‐pot approach. A highly efficient performance and tunable product distribution were achieved...
Hybrid halide perovskite is one of the promising light absorber and is intensively investigated for many optoelectronic applications. Here, the first prototype of a self‐powered inorganic halides perovskite for chemical gas sensing at room temperature under visible‐light irradiation is presented. These devices consist of porous network of CsPbBr3 (CPB) and can generate an open‐circuit voltage of 0...
In this article, a chiral plasmonic hydrogen‐sensing platform using palladium‐based nanohelices is demonstrated. Such 3D chiral nanostructures fabricated by nanoglancing angle deposition exhibit strong circular dichroism both experimentally and theoretically. The chiroptical properties of the palladium nanohelices are altered upon hydrogen uptake and sensitively depend on the hydrogen concentration...
In article number 1703560, Hong Qun Luo, Nian Bing Li, and co‐workers develop a centrifugation‐coupled strategy for size fractionation of exfoliated MoS2. Based on its unique semiconducting property and desired gel electrophoresis performance, layered MoS2 conjugated with antibodies, rivaled classic gold nanoparticles in a visual immunoassay. This study further reveals that 2D nanostructures could...
Liquid‐phase exfoliation routes unavoidably generate 2D nanostructures with inhomogeneous morphologies. Herein, thickness‐dependent sorting of exfoliated nanostructures is achieved via a treatment of differential‐zone centrifugation in the surfactant aqueous phase. With this approach, homogeneous MoS2 nanosheets are obtained, and due to the intrinsic semiconducting characteristics, those 2D nanosheets...
The degradation of intervertebral discs (IVD), a typical hierarchical structured tissue, causes serious neck and back pain. The current methods cannot fully reconstitute the unique structure and function of native IVD. In this study, by reverse reconstruction of the structure of native IVD and bioprinting bacterial cellulose (BC) nanofibers with a high‐throughput optimized micropattern screening microchip,...
Electrochemical conversion of carbon dioxide (electrochemical reduction of carbon dioxide) to value‐added products is a promising way to solve CO2 emission problems. This paper describes a facile one‐pot approach to synthesize palladium–copper (Pd–Cu) bimetallic catalysts with different structures. Highly efficient performance and tunable product distributions are achieved due to a coordinative function...
Design of new nanoagents that intrinsically have both diagnostic imaging and therapeutic capabilities is highly desirable for personalized medicine. In this work, a novel nanotheranostic agent is fabricated based on polydopamine (PDA)‐functionalized Co‐P nanocomposites (Co‐P@PDA) for magnetic resonance imaging (MRI)‐guided combined photothermal therapy and chemotherapy. The ultrahigh relaxivity of...
Retro‐inverso bradykinin (RI‐BK) has better metabolic stability and higher affinity for the BK type 2 (B2) receptor, compared with bradykinin. At low doses, RI‐BK can selectively enhance the permeability of the blood–brain tumor barrier (BBTB) without harming normal brain tissue. In this study, gold nanoparticles (GNPs) of size ranging from 5 to 90 nm are synthesized to assess the optimal size of...
Inorganic perovskites with special semiconducting properties and structures have attracted great attention and are regarded as next generation candidates for optoelectronic devices. Herein, using a physical vapor deposition process with a controlled excess of PbBr2, dual‐phase all‐inorganic perovskite composite CsPbBr3–CsPb2Br5 thin films are prepared as light‐harvesting layers and incorporated in...
Most chemotherapeutic drugs and their nanomedicine formulations exert anticancer activity by inducing cancer cell apoptosis. However, cancer cells inherently have and acquire many antiapoptosis mechanisms, causing cancer drug resistance and poor prognoses in patients. Herein, a potent paraptosis‐inducing nanomedicine is reported that causes quick nonapoptotic death of cancer cells, overcoming apoptosis‐based...
Surface plasmon‐based photonics offers exciting opportunities to enable fine control of the site, span, and extent of mechanical harvesting. However, the interaction between plasmonic photothermic and piezoresponse still remains underexplored. Here, spatially localized and controllable piezoresponse of a hybrid self‐polarized polymeric‐metallic system that correlates to plasmonic light‐to‐heat modulation...
Highly efficient and stable electrocatalysts from inexpensive and earth‐abundant elements are emerging materials in the overall water splitting process. Herein, cobalt iron hydroxide nanosheets are directly deposited on nickel foam by a simple and rapid electrodeposition method. The cobalt iron hydroxide (CoFe/NF) nanosheets not only allow good exposure of the highly active surface area but also facilitate...
Various strategies for combination therapy to overcome current limitations in cancer therapy have been actively investigated. Among them, simultaneous delivery of multiple drugs is a subject of high interest due to anticipated synergistic effect, but there have been difficulties in designing and developing effective nanomaterials for this purpose. In this work, dual‐pore coexisting hybrid porous silica...
Interfacing biomolecules with functional materials is a key strategy toward achieving externally‐triggered biological function. The rational integration of functional proteins, such as enzymes, with plasmonic nanostructures that exhibit unique optical properties such as photothermal effect provides a means to externally control the enzyme activity. However, due to the labile nature of enzymes, the...
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