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Developing a self‐expanding hemostatic sponge with high blood absorption and rapid shape recovery for noncompressible hemorrhage remains a challenge. In this study, a 3D‐printed cuttlefish bone elastomeric sponge (CBES) is fabricated, which combined ordered channels and porous structures, presented tunable mechanical strength, and shape memory potentials. The incorporation of cuttlefish bone powder...
Cellulose nanocrystal (CNC) is a renewable resource derived from lignocellulosic materials, known for its optical permeability, biocompatibility, and unique self‐assembly properties. Recent years have seen great progresses in cellulose nanocrystal‐based chiral photonic materials. However, due to its inherent brittleness, cellulose nanocrystal shows limitations in the fields of flexible materials,...
Modulating the electronic configuration of the substrate to achieve the optimal chemisorption toward polysulfides (LiPSs) for boosting polysulfide conversion is a promising way to the efficient Li–S batteries but filled with challenges. Herein, a Co/CoS2 heterostructure is elaborately built to tuning d‐orbital electronic structure of CoS2 for a high‐performance electrocatalyst. Theoretical simulations...
The cell elimination strategy based on reactive oxygen species (ROS) is a promising method for tumor therapy. However, its efficacy is significantly limited by ROS deficiency caused by H2O2 substrate deficiency and up‐regulation of cellular antioxidant defense induced by high glutathione (GSH) content in tumor cells. To overcome these obstacles, a multifunctional self‐cascaded nanocomposite: glucose...
The high activity of water molecules results in a series of awful parasitic reaction, which seriously impede the development of aqueous zinc batteries. Herein, a new gel electrolyte with multiple molecular anchors is designed by employing natural biomaterials from chitosan and chlorophyll derivative. The gel electrolyte firmly anchors water molecules by ternary hydrogen bonding to reduce the activity...
Nucleus pulposus stem cells (NPSCs) senescence plays a critical role in the progression of intervertebral disc degeneration (IDD). Stem cell‐derived extracellular vesicles (EV) alleviate cellular senescence. Whereas, the underlying mechanism remains unclear. Low stability largely limited the administration of EV in vivo. RGD, an arginine‐glycine‐aspartic acid tripeptide, strongly binds integrins expressed...
Rapid and ultra‐sensitive detection of severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is critical for early screening and management of COVID‐19. Currently, the real‐time reverse transcription polymerase chain reaction (rRT‐PCR) is the primary laboratory method for diagnosing SARS‐CoV‐2. It is not suitable for at‐home COVID‐19 diagnostic test due to the long operating time, specific...
Prelithiating cathode is considered as one of the most promising lithium compensation strategies for practical high energy density batteries. Whereas most of reported cathode lithium compensation agents are deficient owing to their poor air‐stability, residual insulating solid, or formidable Li‐extracting barrier. Here, this work proposes molecularly engineered 4‐Fluoro‐1,2‐dihydroxybenzene Li salt...
Tuning the d‐orbital electronic configuration of active sites to achieve well‐optimized adsorption strength of oxygen‐containing intermediates toward reversible oxygen electrocatalysis is desirable for efficient rechargeable Zn‐Air batteries but extremely challenging. Herein, this work proposes to construct a Co@Co3O4 core–shell structure to regulate the d‐orbital electronic configuration of Co3O4...
Solid electrolyte interphase (SEI) plays an important role in regulating the interfacial ion transfer and safety of Lithium‐ion batteries (LIBs). It is unstable and readily decomposed releasing much heat and gases and thus triggering thermal runaway. Herein, in situ heating X‐ray photoelectron spectroscopy is applied to uncover the inherent thermal decomposition process of the SEI. The evolution of...
Oral antioxidant nanozymes bring great promise for inflammatory bowel disease (IBD) treatment. To efficiently eliminate reactive oxygen species (ROS), various metal‐based nanozymes have been developed for the treatment of IBD but their practical applications are seriously impaired by unstable ROS‐eliminating properties and potential metal ion leakage in the digestive tract. Here, the authors for the...
Optical information encryption and safety have aroused great attention since they are closely correlated to data protection and information safety. The development of multiple stimuli‐response optical materials for constructing large‐capacity information encryption and safety is very important for practical applications. Carbon dots (CDs) have many gratifying merits, such as polychromatic emission,...
As the leading cause of death, heart attacks result in millions of deaths annually, with no end in sight. Early intervention is the only strategy for rescuing lives threatened by heart disease. However, the detection time of the fastest heart‐attack detection system is >15 min, which is too long considering the rapid passage of life. In this study, a machine learning (ML)‐driven system with a simple...
Porous electrodes that conduct electrons, protons, and oxygen ions with dramatically expanded catalytic active sites can replace conventional electrodes with sluggish kinetics in protonic ceramic electrochemical cells. In this work, a strategy is utilized to promote triple conduction by facilitating proton conduction in praseodymium cobaltite perovskite through engineering non‐equivalent B‐site Ni/Co...
The construction of porous nanocarriers with good lubricating performance and stimuli‐responsive drug release is significant for the synergetic therapy of osteoarthritis (OA). Although metal‐organic framework nanoparticles (nanoMOFs) as carriers can support drug delivery, achieving the synergy of aqueous lubrication and stimuli‐responsive drug release is challenging. In this work, a core‐shell nanoMOFs@poly(N‐isopropylacrylamide)...
Electronic textiles (e‐textiles) that combine the wearing comfort of textiles and the functionality of soft electronics are highly demanded in wearable applications. However, fabricating robust high‐performance stretchable e‐textiles with good abrasion resistance and high‐resolution aesthetic patterns for high‐throughput manufacturing and practical applications remains challenging. Herein, the authors...
MoS2 Devices
In article number 2106411, Wen‐Wei Wu and co‐workers reveal the direct observation of an MoS2 device under biasing via powerful in situ transmission electron microscopy (TEM). During in situ TEM biasing, the MoS2 is etched vertically and horizontally; the former is dominated by knock‐on damage, while the latter involves atomic migration induced by Joule heating. Also, the long cracks...
2D materials have great potential for not only device scaling but also various applications. To prompt the development of 2D electronics and optoelectronics, a better understanding of the limitation of materials is essential. Material failure caused by bias can lead to variations in device behavior and even electrical breakdown. In this study, the structural evolution of monolayer MoS2 with high bias...
In article number 1905516, Wen‐Wei Wu and co‐workers fabricate the hybrids of heterojunctions of few‐layer MoS2 in terms of diverse layer variation and stacking configuration, through in‐situ scanning/transmission electron microscopy heating. The salient dynamics inherent in few‐layer MoS2 are investigated and first observed at the atomic scale, including scrolling, folding, etching, and restructuring...
Layered MoS2 is a prospective candidate for use in energy harvesting, valleytronics, and nanoelectronics. Its properties strongly related to its stacking configuration and the number of layers. Due to its atomically thin nature, understanding the atomic‐level and structural modifications of 2D transition metal dichalcogenides is still underdeveloped, particularly the spatial control and selective...
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