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Normally, only noncentrosymmetric structure of the materials can potentially be piezoelectric. Thus, it is limited in the field of piezoelectricity for the centrosymmetric structure of the material. In this work, the performance of piezoelectricity is successfully achieved from centrosymmetric SrFeO3‐x by modulating oxygen vacancies, which have a surface piezoelectric potential up to 93 mV by using...
To overcome the low efficiency of overall water splitting, highly effective and stable catalysts are in urgent need, especially for the anode oxygen evolution reaction (OER). In this case, nickel selenides appear as good candidates to catalyze OER and other substitutable anodic reactions due to their high electronic conductivity and easily tunable electronic structure to meet the optimized adsorption...
Electrochemical CO2 reduction into high‐value‐added formic acid/formate is an attractive strategy to mitigate global warming and achieve energy sustainability. However, the adsorption energy of most catalysts for the key intermediate *OCHO is usually weak, and how to rationally optimize the adsorption of *OCHO is challenging. Here, an effective Bi‐Sn bimetallic electrocatalyst (Bi1‐O‐Sn1@C) where...
Space charge transfer of heterostructures driven by the work‐function‐induced built‐in field can regulate the electronic structure of catalysts and boost the catalytic activity. Herein, an epitaxial heterojunction catalyst of CoO/Mo2C with interfacial electron redistribution induced by work functions (WFs) is constructed for overall water splitting via a novel top‐down strategy. Theoretical simulations...
The development of bifunctional catalysts that facilitate both the hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR) in alkaline environment is crucial for realizing unitized regenerative anion‐exchange membrane fuel cells. In this study, a novel strategy to modulate the electron density of MoO3 through Ni doping (sample named NixMo1−xO3) is reported. Ni is incorporated to replace...
Preparing MoS2‐based materials with reasonable structure and catalytic activity to enhance the sluggish kinetics of lithium polysulfides (LiPSs) conversion is of great significance for Li–S batteries (LSBs) but still remain a challenge. Hence, hollow nanotubes composed of N‐doped ultrathin MoS2 nanosheets (N‐MoS2 NHTs) are fabricated as efficient S hosts for LSBs by using CdS nanorods as a sacrifice...
Oncolytic Virotherapies
In article number 2206948, Ying Wu, Ning Li, Funan Liu, and co‐workers provide a more advanced approach to cancer immunotherapy, i.e. the oncolytic virotherapy. Oncolytic viruses selectively replicate in tumor cells and exert antitumor effects through direct oncolysis and inducting immune responses, where tumor antigens from the lysing cells enhance antitumor immunity.
With advances in cancer biology and an ever‐deepening understanding of molecular virology, oncolytic virus (OV)‐driven therapies have developed rapidly and become a promising alternative to traditional cancer therapies. In recent years, satisfactory results for oncolytic virus therapy (OVT) are achieved at both the cellular and organismal levels, and efforts are being increasingly directed toward...
It is a good idea for efficient production of hydrogen to use ethanol oxidation reaction (EOR) in place of oxygen evolution reaction (OER) in water electrolysis process. Ni‐based non‐precious electrocatalysts are widely used in the conversion of ethanol to acetic acid. Here, different selenide heterostructures (NiCoSe, NiFeSe, and NiCuSe) are prepared in which Ni sites are regulated by transition...
Sodium‐ion batteries (SIBs) have attracted wide interest for energy storage because of the sufficient sodium element reserve on the earth; however, the electrochemical performance of SIBs cannot achieve the requirements so far, especially, the limitation of cathode materials. Here, a kilogram‐scale route to synthesize Na2FePO4F/carbon/multi‐walled carbon nanotubes microspheres (NFPF@C@MCNTs) composite...
Purposeful control of the highly active crystal planes is an effective strategy to improve the nanocrystalline catalytic activity. Therefore, Co2P nanocrystals with high exposure of (211) lattice plane loaded at 2D hexagonal V2O3 nanosheets (H‐Co2P‐V2O3) are designed via the control of morphology. After optimization, this H‐Co2P‐V2O3 boosts the redox kinetics of lithium polysulfides (LiPSs) in lithium–sulfur...
Surface/interfacial engineering is an essential technique to explore the fiber materials properties and fulfil new functionalities. An extensive scope of current physical and chemical treating methods is reviewed here together with a variety of real‐world applications. Moreover, a new surface/interface engineering approach is also introduced: self‐assembly via π–π stacking, which has great potential...
Phase change materials (PCMs), such as GeSbTe (GST) alloys and vanadium dioxide (VO2), play an important role in dynamically tunable optical metadevices. However, the PCMs usually require high thermal annealing temperatures above 700 K, but most flexible metadevices can only work below 500 K owing to the thermal instability of polymer substrates. This contradiction limits the integration of PCMs into...
Direct tracing of small extracellular vesicle (sEV) cargoes holds unprecedented importance for elucidating the mechanisms involved in intercellular communication. However, high‐fidelity determination of sEVs’ molecular cargoes in situ has yet to be achieved due to the difficulty in transporting molecular probes into intact sEVs. Herein, a fLuorescent Intracellular‐Guided Hairpin‐Tetrahedron (fLIGHT)...
Rhodium (Rh)‐based catalysts may solve the long‐standing inefficient oxidation of ethanol for direct ethanol fuel cells (DEFCs); however, the performance of ethanol oxidation reaction (EOR) on existing Rh‐based catalysts are far limited. Herein, the Rh–Pb catalysts are synthesized by building Pb and Pb oxide around Rh nanodomain, which shows highly efficient splitting CC bond and facile further oxidation...
In article number 2002800, Guixue Wang, Yang Luo, and co‐workers introduce a DNA origami nanoprobe “fLIGHT” for high‐fidelity visualization of small extracellular vesicle microRNAs without RNA extraction. This innovative platform can aid in easy development of a universal molecular detection strategy that could facilitate extracellular vesicle‐derived fundamental biological studies.
Triple‐negative breast cancer (TNBC) is highly aggressive and insensitive to conventional targeted therapies, resulting in poor therapeutic outcomes. Recent studies have shown that abnormal iron metabolism is observed in TNBC, suggesting an opportunity for TNBC treatment via the iron‐dependent Fenton reaction. Nevertheless, the efficiency of current Fenton reagents is largely restricted by the lack...
In article number 2002537, Fangyuan Li, Qiang Ding, Daishun Ling, and co‐workers report core–shell–satellite nanomaces composed of mesoporous silica coated gold nanorod and surface grafted ultrasmall iron oxide nanoparticles. By exploiting the vulnerability of iron efflux in triple‐negative breast cancer (TNBC) cells, the nanomaces exhibit a photothermal enhanced Fenton reaction‐mediated anti‐cancer...
Lightweight and mechanically strong protein fibers are promising for many technical applications. Despite the widespread investigation of biological fibers based on spider silk and silkworm proteins, it remains a challenge to develop low‐cost proteins and convenient spinning technology for the fabrication of robust biological fibers. Since there are plenty of widely available proteins in nature, it...
Due to substantial phonon scattering induced by various structural defects, the in‐plane thermal conductivity (K) of graphene films (GFs) is still inferior to the commercial pyrolytic graphite sheet (PGS). Here, the problem is solved by engineering the structures of GFs in the aspects of grain size, film alignment, and thickness, and interlayer binding energy. The maximum K of GFs reaches to 3200...
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