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The transition‐metal nitrogen‐carbon (M‐N‐C) catalysts, as one of the optimal bifunctional oxygen catalysts, are vital for cathodic oxygen electrode of Zn‐based air flow batteries (ZAFBs). However, chemical complexity of M‐N‐C catalysts prepared via the traditional pyrolytic process increases the difficulties of precise control toward configuration and repeatability, especially in large‐scale synthesis...
Cellular mechanics encompass both mechanical properties that resist forces applied by the external environment and internally generated forces applied at the location of cell–cell and cell–matrix junctions. Here, the authors demonstrate that microindentation of cellular domes formed by cell monolayers that locally lift off the substrate provides insight into both aspects of cellular mechanics in multicellular...
Doped Quantum Layers
In article number 2200454, Yuyu Bu, Xiaohui Guo, and co‐workers fabricate a photogenerated hole transfer tunnel in a photoanode system via doped quantum layers.
Lithium–Sulfur Batteries
In article number 2200326, Kang‐Jun Baeg, Jun‐Woo Park, an co‐workers develop high‐energy‐density flexible lithium–sulfur (Li–S) batteries with high‐loading, free‐standing cathodes and chemically functionalized carbon mixture interlayers. The multimodal capturing effect via simultaneous physical trapping and strong chemical interactions is highly efficient for immobilizing...
Intelligent and highly precise control of liquid–solid triboelectricity is of great significance for energy collection and electrostatic prevention. However, most of the traditional methods are irreversible and complex, greatly limiting their applicability. Here, a reversible thermosensitive liquid–solid triboelectric nanogenerator (L–S TENG) is assembled based on P(NIPAM‐MMA) (PNM) copolymer for...
Photonic and plasmonic colors, stemming from nanostructures of dielectric materials and metals, are promising for pigment‐free coloration. In particular, nanostructures with structural colors have been employed in stimuli‐responsive Janus microparticles to provide active color pixels. Here, the authors report a simple strategy to produce electro‐responsive Janus microspheres composed of photonic and...
Efficient detection of aqueous copper ions is of high significance for environmental and human health, since copper is involved in potent redox activity in physiological and pathological processes. Covalent organic frameworks (COFs) have shown advantages in efficient capturing and detecting of copper ions due to their large surface area, robust chemical stability, and high sensitivity, but most of...
For achieving high‐performance p‐i‐n perovskite solar cells (PSCs), hole transporting materials (HTMs) are critical to device functionality and represent a major bottleneck to further enhancing device stability and efficiency in the inverted devices. Three dopant‐free polymeric HTMs are developed based on different linkage sites of triphenylamine and phenylenevinylene repeating units in their main...
High interfacial resistance and unstable interphase between cathode active materials (CAMs) and solid‐state electrolytes (SSEs) in the composite cathode are two of the main challenges in current all‐solid‐state batteries (ASSBs). In this work, the all‐phosphate‐based LiFePO4 (LFP) and Li1.3Al0.3Ti1.7(PO4)3 (LATP) composite cathode is obtained by a co‐firing technique. Benefiting from the densified...
Bimetallic SbSn alloy stands out among the anode materials for sodium‐ion batteries (SIBs) because of its high theoretical specific capacity (752 mAh g−1) and good electrical conductivity. However, the major challenge is the large volume change during cycling processes, bringing about rapid capacity decay. Herein, to cope with this issue, through electrostatic spinning and high temperature calcination...
Organic memory devices are a rapidly evolving field with much improvement in device performance, fabrication, and application. But the reports have been disparate in terms of the material behavior and the switching mechanisms in the devices. And, despite the advantages, the lack of agreement in regards to the switching behavior of the memory devices is the biggest challenge that the field must overcome...
Target therapy for highly heterogeneous cancers represents a major clinical challenge due to the lack of recurrent therapeutic targets identified in these tumors. Herein, the authors report a tumor‐customized targeting photothermal therapy (PTT) strategy for highly heterogeneous cancers, by which 2D supramolecular self‐assembled nanodiscs are modified with tumor‐specific binding peptides identified...
Silk fibroin (SF) is a promising biomaterial for tendon repair, but its relatively rigid mechanical properties and low cell affinity have limited its application in regenerative medicine. Meanwhile, gelatin‐based polymers have advantages in cell attachment and tissue remodeling but have insufficient mechanical strength to regenerate tough tissue such as tendons. Taking these aspects into account,...
Active particles are known to exhibit collective behavior and induce structure in a variety of soft‐matter systems. However, many naturally occurring complex fluids are mixtures of active and passive components. The authors examine how activity induces organization in such multi‐component systems. Mixtures of passive colloids and colloidal micromotors are investigated and it is observed that even...
Photothermal Therapy
In article number 2200179, Xuesheng Jiang, Xiaohua Yu, Zhaoming Ye, and co‐workers introduce a strategy of precise photothermal therapy for highly heterogenous cancers by a tumor‐customized 2D supramolecular nanodisc (T‐ND). By modifying Cy7‐TCF crystal with phage display derived tumor‐customized binding peptides, T‐ND shows excellent photothermal efficacy to ablate the tumor...
Self‐Organization of Multi‐Component Systems
Recent efforts in materials science have focused on biologically inspired mixtures of active and passive colloids. In article number 2107023, Juliane Simmchen, Erik Luijten, and co‐workers examine the effects of a minority of active particles on the collective behavior of a majority of passive particles. Integrated simulations and experiments elucidate...
To address the environmental crisis caused by excessive emissions of CO2, the development of effective photocatalysts for the conversion of CO2 into chemicals has emerged as one of the most promising strategies. Herein, beyond those well‐studied materials, a rare‐earth sulfide‐based nanocrystal NaCeS2 is fabricated and investigated for efficient and selective conversion of CO2 into CO, where the role...
Molecule engineering has been demonstrated as a valid strategy to adjust the active layer morphology in all‐small‐molecule organic solar cells (ASM‐OSCs). In this work, two non‐fullerene acceptors (NFAs), FO‐2Cl and FO‐EH‐2Cl, with different alkyl side chains are reported and applied in ASC‐OSCs. Compared with FO‐2Cl, FO‐EH‐2Cl is designed by replacing the octyl alkyl chains with branched iso‐octyl...
Repeated charge/discharge in aqueous zinc‐ion batteries (ZIBs) commonly results in surface corrosion/passivation and dendrite formation on zinc anodes, which is a major challenge for the commercialization of zinc‐based batteries. In this work, metallic Zn modified by self‐assembled monolayers is described as a viable anode for ZIBs. ω‐mercaptoundecanoic acid that is spontaneously adsorbed on Zn (MUDA/Zn)...
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