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Liquid metal (LM) composites, which consist of LM droplets dispersed in highly deformable elastomers, have recently gained interest as a multifunctional material for soft robotics and electronics. The incorporation of LM into elastic solids allows for unique combinations of material properties such as high stretchability with thermal and electrical conductivity comparable to metals. However, it is...
Based on a kinetic model involving oxidant diffusion and an oxidation‐reduction reaction, a 3‐parameter equation is derived relating the change in the concentration of thermally induced carrier donors in common metal‐oxide semiconductors (such as indium–gallium–zinc oxide and indium–tin–zinc oxide) to heat‐treatment time. The change in the concentration of such donors is characterized by measuring...
Developing low‐cost and efficient oxygen evolution electrocatalysts is key to decarbonization. A facile, surfactant‐free, and gram‐level biomass‐assisted fast heating and cooling synthesis method is reported for synthesizing a series of carbon‐encapsulated dense and uniform FeNi nanoalloys with a single‐phase face‐centered‐cubic solid‐solution crystalline structure and an average particle size of...
Superhydrophobic surfaces with the “lotus effect” have wide applications in daily life and industry, such as self‐cleaning, anti‐freezing, and anti‐corrosion. However, it is difficult to reliably predict whether a designed superhydrophobic surface has the “lotus effect” by traditional theoretical models due to complex surface topographies. Here, a reliable machine learning (ML) model to accurately...
The poor conductivity, inert charge transmission efficiency, and irreversible Na+ trapping of Na2Ti3O7 result in retardant electrons/ions transportation and deficient sodium‐ion storage efficiency, leading to sluggish reaction kinetics. To address these issues, an urchin‐like Ti2CTx/Na2Ti3O7 (Ti2C/NTO) heterostructure sphere consisting of Ti2C/NTO heterostructure nanobelts array is developed via a...
Although small interfering RNA (siRNA) therapy has achieved great progress, unwanted gene inhibition in normal tissues severely limits its extensive clinical applications due to uncontrolled siRNA biodistribution. Herein, a spatially controlled siRNA activation strategy is developed to achieve tumor‐specific siRNA therapy without gene inhibition in the normal tissues. The quaternary ammonium moieties...
Flexible organic near‐infrared (NIR) phototransistors hold promising prospects for potential applications such as noninvasive bioimaging, health monitoring, and biometric authentication. For integrated circuits of high‐performance devices, organic single‐crystalline micro‐/nanostructures with precise positioning are prominently anticipated. However, the manufacturing of organic single‐crystalline...
The continuous white‐light emission of carbon dots (CDs) can be applied to producing multicolor laser emissions by one single medium. Meanwhile, the solid‐state emission greatly contributes to its practical application. In this work, a strategy to realize the in‐situ hybridization of silane‐functionalized CDs (SiCDs) and 1,3,5‐benzenetricarboxylic acid trimethyl ester (Et3BTC) by a one‐pot solvothermal...
The practical application of Li–S batteries is severely limited due to low sulfur utilization, sluggish sulfur redox kinetics, intermediate polysulfide dissolution/shuttling, and subsequent anode degradation. A smart cathode with efficient electrocatalyst and a protected anode is necessary. Herein, hollow carbon (HC) spheres are used as a sulfur host to improve the electrical conductivity and buffer...
Use of 2D materials as buffer layers has prospects in nitride epitaxy on symmetry mismatched substrates. However, the control of lattice arrangement via 2D materials at the heterointerface presents certain challenges. In this study, the epitaxy of single‐crystalline GaN film on WS2‐glass wafer is successfully performed by using the strong polarity of WS2 buffer layer and its perfectly matching lattice...
Combined treatment of immunotherapy and radiotherapy shows promising therapeutic effects for the regression of a variety of cancers. However, even multi‐modality therapies often fail to antagonize the regression of large tumors due to the extremely immunosuppressive tumor microenvironment (TME). Here, a radioimmunotherapeutic paradigm based on stimulator of interferon genes (STING)‐dependent signaling...
The development of probes for early monitoring tumor therapy response may greatly benefit the promotion of photodynamic therapy (PDT) efficacy. Singlet oxygen (1O2) generation is a typical indicator for evaluating PDT efficacy in cancer. However, most existing probes cannot quantitatively detect 1O2 in vivo due to the high reactivity and transient state, and thus have a poor correlation with PDT response...
Multicolor Lasers
In article number 2203152, Wenfei Zhang, Hailong Zhang, Zheng Xie, and co‐workers report a strategy to realize the in‐situ hybridization of carbon nanodots and 1,3,5‐benzenetricarboxylic acid trimethyl ester crystals. The hybrid crystals exhibit ultra‐broadband multicolor random laser over the near ultraviolet‐visible region and continuous white‐light fluorescence. The structure...
Large Tumor Therapy
In article number 2203227, Yanyu Huang, Liangping Luo, Zeyu Xiao, and co‐workers report a localized radioimmunotherapeutic regimen by using X‐ray irradiation and a metal‐cyclic dinucleotide‐containing nanomodulator for the treatment of large tumors. This combined paradigm amplifies the STING signaling pathway by elevating the production of 2′,3′‐cGAMP and activating both localized...
Metal‐Oxide Semiconductors
In article number 2203346, Zhihe Xia, Man Wong, and co‐workers propose a 3‐parameter equation based on a kinetic model involving oxidant diffusion and an oxidation‐reduction reaction of intrinsic donor defects. It is shown to be applicable to common metal‐oxide semiconductors and is deployed to the characterization of donor defects.
Ultralow thermal conductivity materials have triggered much interest due to diverse applications in thermal insulation, thermal barrier coating, and especially thermoelectrics. Two dimensional (2D) indium tellurides with ultralow thermal conductivity provide a versatile platform for tailoring the heat transfer, exploring new candidates for thermoelectrics, and achieving miniature, lightweight, and...
Thermosalient crystals are molecular solids that exhibit explosive motions, such as sudden breaks and jumps, due to temperature‐induced structural phase transitions between two polymorphs. Therefore, the development of molecular actuators with superior speed and power by deriving mechanical work from explosive motion is a fascinating concept. However, thermosalient transitions often cause crystal...
In this work, a near‐ultraviolet (NUV) emitter, 2MCz‐CNMCz, with hot‐exciton property is designed based on a “long‐short axis” strategy, which exhibits good thermal stability, bipolar carrier transport ability, and high T1 energy level. Its nondoped NUV organic light‐emitting diode (OLED) achieves a record maximum external quantum efficiency (ηext) of 7.76%, with a peak at 404 nm and CIE coordinates...
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