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Chiral inorganic quasi‐2D perovskites are prepared by self‐assembling 3D perovskites in solution for the first time. The quasi‐2D perovskite synthesized is a pure‐phase perovskite with <n> = 3 and is periodically arranged, which is a big breakthrough in quasi‐2D inorganic perovskites. With the individual chiral CsPbBr3 nanocrystals (NCs) assemble into quasi‐2D perovskite, the g‐factor significantly...
All‐solid‐state lithium‐metal batteries offer higher energy density and safety than lithium‐ion batteries, but their practical applications have been pushed back by the sluggish Li+ transport, unstable electrolyte/electrode interface, and/or difficult processing of their solid‐state electrolytes. Li+‐conducting composite polymer electrolytes (CPEs) consisting of sub‐micron particles of an oxide solid‐state...
Colloidal colorimetric microsensors enable the in‐situ detection of mechanical strains within materials. Enhancing the sensitivity of these sensors to small scale deformation while enabling reversibility of the sensing capability would expand their utility in applications including biosensing and chemical sensing. In this study, we introduce the synthesis of colloidal colorimetric nano‐sensors using...
MXenes, a fast‐growing family of two‐dimensional (2D) transition metal carbides/nitrides, are promising for electronics and energy storage applications. Mo2CTx MXene, in particular, has demonstrated a higher capacity than other MXenes as an anode for Li‐ion batteries. Yet, such enhanced capacity is accompanied by slow kinetics and poor cycling stability. Herein, it is revealed that the unstable cycling...
Lithium–sulfur (Li–S) battery has been considered as a strong contender for commercial aerospace battery, but the commercialization requires Ah‐level pouch cells with both efficient discharge at high rates and ultra‐high energy density. In this paper, the application of lithium–sulfur batteries for powering drones by using the cathode of highly dispersed sulfur nanoparticles with well‐controlled particle...
Homogeneous and nanometric metal clusters with unique electronic structures are promising for catalysis, however, common synthesis techniques for metal clusters suffer from large size and even metal nanocrystals attributing to their high surface energy and unsaturated configurations. Herein, a generalized rapid annealing strategy for synthesizing a series of supported metal clusters as superior catalysts...
Most catalysts cannot accelerate uninterrupted conversion of polysulfides, resulting in poor long‐cycle and high‐loading performance of lithium–sulfur (Li–S) batteries. Herein, rich p‐n junction CoS2/ZnS heterostructures embedded on N‐doped carbon nanosheets are fabricated by ion‐etching and vulcanization as a continuous and efficient bidirectional catalyst. The p‐n junction built‐in electric field...
Water electrolysis is an ideal method for industrial green hydrogen production. However, due to increasing scarcity of freshwater, it is inevitable to develop advanced catalysts for electrolyzing seawater especially at large current density. This work reports a unique Ru nanocrystal coupled amorphous‐crystal Ni(Fe)P2 nanosheet bifunctional catalyst (Ru‐Ni(Fe)P2/NF), caused by partial substitution...
The regeneration of diabetic bone defects remains challenging. Hyperglycemia causes inflammation state and excessive reactive oxygen species (ROS) during bone regeneration period. These two effects reinforce one another and create an endless loop that is also accompanied by mitochondrial dysfunction. However, there is still no effective and inclusive method targeting at the two aspects and breaking...
2D magnets can potentially revolutionize information technology, but their potential application to cooling technology and magnetocaloric effect (MCE) in a material down to the monolayer limit remain unexplored. Herein, it is revealed through multiscale calculations the existence of giant MCE and its strain tunability in monolayer magnets such as CrX3 (X = F, Cl, Br, I), CrAX (A = O, S, Se; X = F, Cl, Br, I),...
Nanoparticle Protein Corona
The protein corona forms at the surface of nanoparticles when they are introduced into biological fluids. In article number 2301838, Markita P. Landry, Morteza Mahmoudi, and co‐workers analyze the characteristics of the formed protein corona at the surface of 1702 nanoparticle systems (extracted from 470 papers spanning 2000–2021).
Super‐Fast Fog Collectors
In article number 2301745, Jinlong Song and co‐workers develop a novel super‐fast fog collector based on self‐driven jet of mini fog droplets, which is hopefully to resolve the water crisis in some arid but foggy regions.
Improved Lithium Sulfur Batteries
NiCo2S4‐x nanoplates with sulfur vacancy are grown on the flexible carbon fiber paper as the interlayer of the Li‐S battery. The 2D nanoplate morphology of NiCo2S4‐x increases the effective adsorption sites for lithium polysulfides (LiPSs), and the Lewis acidic sulfur vacancy could regulate the precipitation and conversion behaviors of LiPSs, resulting in improved...
Artificial Sensory Neural Network Systems
In article number 2301196, Chun Zhao, Xin Wang, and co‐workers develop an artificial sensory neural network system, combining digital‐analog bimodal memristor with piezoresistive tactile sensory array, to achieve tactile sensing, information storage, and neuromorphic computing, which would demonstrate potential in human‐machine interaction, prosthetics, and...
Metal–Organic Frameworks
In article number 2303580, Moonhyun Oh and co‐workers develop a strategy to create naturally nonpreferred metal‐organic frameworks (MOFs) using reaction templates. By leveraging the template's surface, the cell lattice of the targeted MOF is aligned, reducing energy demands. The induced MOFs are then isolated from the template via lattice post‐mismatching.
Bioderived Ionic Liquids
In article 2302385, Shunsuke Yamada develops bioderived ionic liquids with alkaline metal ions with Li, Na and Ca ions for transient ionic devices. The ionic liquids involve ready biodegradability, and its gel with the Li ions yields an electrochromic device with WO3. This study offers an opportunity to develop electrochemical devices that are bio/eco‐resorbable after use...
Enhanced Hepatocellular Carcinoma Therapy
First‐line hepatocellular carcinoma treatment is sorafenib, but effectiveness of sorafenib is relatively low due to a lack of tumor‐targeted accumulation and a lack of therapeutic efficacy. In article number 2301149, Yuan Huang and co‐workers design orally administered butyrate‐modified nanoparticles, which could strongly bind to monocarboxylate transporter...
Rare‐Earth Metals
Article number 2302173 by Ashlee J. Howarth and co‐workers focuses on the design and synthesis of nine new isostructural rare‐earth cluster‐based metal‐organic frameworks (MOFs). The rare‐earth ions used are highlighted on the periodic table in the image. The MOF, named CU‐10 (CU = Concordia University), is comprised of pyrene‐based linkers that when excited with UV‐light can be...
Nanotransducers
The microbial‐free bumblebee is a powerful tool to explore the precise control of engineered microbiota. Nanotransducers are fabricated to regulate the engineered bacteria inside the bumblebee gut by two spatiotemporal means, including magneto‐thermal and photothermal. This advanced technology lays the foundation for the treatment of bumblebee intestinal parasitic diseases and the...
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