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All‐solid lithium (Li) metal batteries (ASSLBs) with sulfide‐based solid electrolyte (SEs) films exhibit excellent electrochemical performance, rendering them capable of satisfying the growing demand for energy storage systems. However, challenges persist in the application of SEs film owing to their reactivity with Li metal and uncontrolled formation of lithium dendrites. In this study, iodine‐doped...
Nonplanar porphyrins with out‐of‐plane distortions play crucial roles in many biological functions and chemical applications. The artificial construction of nonplanar porphyrins usually involves organic synthesis and modification, which is a highly comprehensive approach. However, incorporating porphyrins into guest‐stimulated flexible systems allows to manipulate the porphyrin distortion through...
The requirements for high energy and green primary explosives are more and more stringent because of the rising demand in the application of micro initiation explosive devices. Four new energetic compounds with powerful initiation ability are reported and their performances are experimentally proven as designed, including non‐perovskites ([H2DABCO](H4IO6)2·2H2O, named TDPI‐0) and perovskitoid energetic...
Flexible and controllable fabrication of micro–nano structures on metallic glasses (MGs) endow them with more functional applications, but it is still challenging due to the unique mechanical, physical, and chemical properties of MGs. In this study, inspired by a new physical phenomenon observed in the nanosecond laser–MG interaction (i.e., the surface structure is transformed from the normally observed...
Recent developments in antimicrobial peptides (AMPs) have focused on the rational design of short sequences with less than 20 amino acids due to their relatively low synthesis costs and ease of correlation of the structure‐function relationship. However, gaps remain in the understanding of how short cationic AMPs interact with the bacterial outer and inner membranes to affect their antimicrobial efficacy...
Small extracellular vesicles (sEVs) secreted by mesenchymal stem cells (MSCs) have been extensively studied in recent years. sEV contents change with the secreting cell state. When MSCs are exposed to an inflammatory environment, they release more functional growth factors, exosomes, and chemokines. Herein, MSCs are stimulated to alter sEV cargos and functions to regulate the inflammatory microenvironment...
Owing to the urgent need for electrochemical analysis and sensing of trace target molecules in various fields such as medical diagnosis, agriculture and food safety, and environmental monitoring, signal amplification is key to promoting analysis and sensing performance. The nanoconfinement effect, derived from nanoconfined spaces and interfaces with sizes approaching those of target molecules, has...
Sodium metal is regarded as one of the most prospective next‐generation anodes material owing to its high theoretical capacity, low redox potential, low cost, and natural abundance. Its most notable problem is the dendrite growth during Na plating/striping, which causes not only the safety concern but also the generation of inactive Na. Here, it is demonstrated that 2D carbon nanosheets embedded by...
Two europium metal–organic frameworks (MOFs) based on the same ligand, named as ZJU‐23‐Eu and ZJU‐24‐Eu, are selectively synthesized by fine‐tuning solvent contents to tailor the coordination modes. Eu atoms are eight‐coordinated and nine‐coordinated in ZJU‐23‐Eu and ZJU‐24‐Eu respectively, and their frameworks vary in both spatial connectivity and symmetry. The ligand not only has multiphoton response...
Achieving multifunctional van der Waals nanoelectronic devices on one structure is essential for the integration of 2D materials; however, it involves complex architectural designs and manufacturing processes. Herein, a facile, fast, and versatile laser direct write micro/nanoprocessing to fabricate diode, NPN (PNP) bipolar junction transistor (BJT) simultaneously based on a pre‐fabricated black phosphorus/molybdenum...
To unlock the great potential of lithium metal anodes for high‐performance batteries, a number of critical challenges must be addressed. The uncontrolled dendrite growth and volume changes during cycling (especially, at high rates) will lead to short lifespan, low Coulombic efficiency (CE), and security risks of the batteries. Here it is reported that Li metal anodes, employing the monodisperse, lithiophilic,...
The realizing of high‐performance rechargeable aqueous zinc‐ion batteries (ZIBs) with high energy density and long cycling life is promising but still challenging due to the lack of suitable layered cathode materials. The work reports the excellent zinc‐ion storage performance as‐observed in few‐layered ultrathin VSe2 nanosheets with a two‐step Zn2+ intercalation/de‐intercalation mechanism verified...
In article number 2000128, Youhui Lin, Xiang Yang Liu, and co‐workers successfully create 3D “molecular springs” networks by establishing crosslinks of scattered wool keratin. The as‐prepared networks display unique elasticity, high resistance fatigue, fast self‐recovery, and ultralow effective elastic modulus. Due to the fascinating features, such wool keratin mediated materials can be used in the...
Wool keratin (WK) consists of a large number of α‐helices, which are just like many molecular‐scale springs. Herein, the construction of 3D WK molecular spring networks are reported by cross‐linking individual WK molecules via a Michael addition reaction. The as‐prepared springs display a superior recovery capability with unusual nonlinear elasticity, very low dissipative energy, and turntable elastic...
In article number 1905572, Fan Wang and co‐workers develop near‐infrared Bessel‐beam emission saturation nanoscopy to simultaneously tackle the problems in light absorption and scattering for biological tissues, enabling the tracking of single nanoparticles inside a multicellular tumor spheroid in the depth over 55 µm with an imaging resolution of sub‐98 nm.
Cancer spheroids have structural, functional, and physiological similarities to the tumor, and have become a low‐cost in vitro model to study the physiological responses of single cells and therapeutic efficacy of drugs. However, the tiny spheroid, made of a cluster of high‐density cells, is highly scattering and absorptive, which prevents light microscopy techniques to reach the depth inside spheroids...
In article number 1905736, Wei (Alex) Wang, Xuanhui Qu, and co‐workers adopt a three‐pronged collaborative strategy via hollow nanocubes, amorphous Void@SiOx@C, in situ cross‐linked 3D network binder to maintain structural/electrode integrality. The cover art depicts a Chinese proverb which says, “everyone gathers firewood and flames high.”
Although silicon‐based materials are ideal candidate anodes for high energy density lithium‐ion batteries, the large volumetric expansion seriously damages the integrity of the electrodes and impedes commercial processes. Reasonable electrode design based on adjustable structures of silicon and strong binders prepared by a facile method is still a great challenge. Herein, a three‐pronged collaborative...
Metal–organic framework (MOF) composites have recently been considered as promising precursors to derive advanced metal/carbon‐based materials for various energy‐related applications. Here, a dual‐MOF‐assisted pyrolysis approach is developed to synthesize Co–Fe alloy@N‐doped carbon hollow spheres. Novel core–shell architectures consisting of polystyrene cores and Co‐based MOF composite shells encapsulated...
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