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Drug Release Technology
In article number 2306940, Jian Tian, Shengqian Ma, and co‐workers developed a novel magnetothermally‐triggered drug release carrier. Created using a controlled encapsulation method, this carrier fully fixes and confines iron oxide nanoparticles (IONPs) within metal‐organic frameworks (MOFs), preserving the MOF's morphology and porosity and effectively segregating IONPs. It...
The development of external stimuli‐controlled payload systems has been sought after with increasing interest toward magnetothermally‐triggered drug release (MTDR) carriers due to their non‐invasive features. However, current MTDR carriers present several limitations, such as poor heating efficiency caused by the aggregation of iron oxide nanoparticles (IONPs) or the presence of antiferromagnetic...
Photoresponsive nitric oxide (NO)‐releasing materials (NORMs) enable the spatiotemporal delivery of NO to facilitate their potential applications in physiological conditions. Here two novel metal–organic frameworks (MOFs)‐based photoactive NORMs achieved by the incorporation of prefunctionalized NO donors into the photosensitive Fe‐MOFs via a postmodification strategy is reported. The modified Fe‐MOFs...
Primary cancer modulates the bone microenvironment to sow the seeds of dormancy and metastasis in tumor cells, leading to multiple organ metastasis and death. In this study, 3D printing and bone‐on‐a‐chip (BOC) are combined to develop a BOC platform that mimics the pre‐metastatic niches (PMNs) and facilitates elucidation of the interactions between bone‐resident cells and metastatic tumor cells under...
Polyethylene oxide (PEO) based polymer electrolytes show promise in expanding the practical applications of lithium (Li) batteries. However, their applications in Li batteries are usually restricted owing to the lack of mechanical strength, poor oxidative stability, and relatively large thickness. Herein, a nanofibrous polyimide (PI) framework enhanced plasticized‐PEO solid electrolyte is prepared...
Halogens, especially Br2 and I2, as cathode materials for lithium‐ion batteries exhibit high energy density with low cost, but poor cycling performance due to their high solubility in electrolyte solution. Herein, viologen‐based cationic porous organic polymers (TpVXs, X = Cl, Br, or I) with abundant pores and ionic redox‐active moieties are designed to immobilize halogen anions stoichiometrically...
Electric Double Layer Devices
In article number 2301798, Cheng‐Yan Xu, Yang Li, and co‐workers showcase the structure of electrical double layer at the interface of Li2Al2SiP2TiO13 solid electrolyte and WSe2, emphasizing the interactions between ions and electrons, along with the verification of potential distribution at the 2D/electrolyte interface using atomic force microscope.
Oxidation reaction is of critical importance in chemical industry, in which the primary O2 activation step still calls for high‐performance catalysts. Here, a newly developed precise locating carbonization strategy for the fabrication of 21 kinds of dual‐metal single‐atom catalysts with N, S co‐coordinated configurations is reported. As is exemplified by CoN3S1/CuN4@NC, systematical characterizations...
Electric double layer (EDL) devices based on 2D materials have made great achievements for versatile electronic and opto‐electronic applications; however, the ion dynamics and electric field distribution of the EDL at the electrolyte/2D material interface and their influence on the physical properties of 2D materials have not been clearly clarified. In this work, by using Kelvin probe force microscope...
Covalent organic frameworks (COFs) have emerged as a new class of cathode materials for energy storage in recent years. However, they are limited to two‐dimensional (2D) or three‐dimensional (3D) framework structures. Herein, this work reports designed synthesis of a redox‐active one‐dimensional (1D) COF and its composites with 1D carbon nanotubes (CNTs) via in situ growth. Used as cathode materials...
Preparation of holey, single‐crystal, 2D nanomaterials containing in‐plane nanosized pores is very appealing for the environment and energy‐related applications. Herein, an in situ topological transformation is showcased of 2D layered double hydroxides (LDHs) allows scalable synthesis of holey, single‐crystal 2D transition metal oxides (TMOs) nanomesh of ultrathin thickness. As‐synthesized 2D Co/NiO‐2...
The unstable anode/electrolyte interface (AEI) triggers the corrosion reaction and dendrite formation during cycling, hindering the practical application of zinc metal batteries. Herein, for the first time, l‐cysteine (Cys) is employed to serve as an electrolyte additive for stabilizing the Zn/electrolyte interface. It is revealed that Cys additives tend to initially approach the Zn surface and then...
Electrosprayed microspheres for bone regeneration are conventionally restricted by the lack of osteogenic modulation for both encapsulated stem cells and surrounding cells at the defect site. Here, sodium alginate microspheres encapsulating L‐arginine doped hydroxyapatite nanoparticles (Arg/HA NPs) and bone mesenchymal stem cells (BMSCs) as regeneration‐enhancer‐element reservoirs (Arg/HA‐SA@BMSC)...
Bone Tissue Repair
In article number 2200314, Xin Zhao and co‐workers electrospray microspheres encapsulating stem cells and natural tissue metabolites as regeneration‐enhancer‐element reservoirs to power the inside/outside microsphere cell–cell/cell–material communication for accelerated vascularized bone tissue repair.
Intrinsic hydrogen evolution reaction (HER) activity and the mechanism of antiperovskite Ni3In1‐xCuxN bulk cubic particles and multi‐crystalline nanoplates are thoroughly investigated. Stoichiometric Ni3In0.6Cu0.4N reaches the best HER performance, with an overpotential of 102 mV in its multi‐crystalline nanoplates obtained from the LDH‐derived method, and 143 mV in its bulk cubic particles from the...
Recovery from bone, osteochondral, and cartilage injuries/diseases has been burdensome owing to the damaged vasculature of large defects and/or avascular nature of cartilage leading to a lack of nutrients and supplying cells. However, traditional means of treatment such as microfractures and cell‐based therapy only display limited efficacy due to the inability to ensure cell survival and potential...
There are still many problems that hinder the development of sodium‐ion batteries (SIBs), including poor rate performance, short‐term cycle lifespan, and inferior low‐temperature property. Herein, excellent Na‐storage performance in fluorophosphate (Na3V2(PO4)2F3) cathode is achieved by lattice regulation based on charge balance theory. Lattice regulation of aliovalent Mn2+ for V3+ increases both...
To improve the catalytic activity of the catalysts, it is key to intensifying the intrinsic activity of active sites or increasing the exposure of accessible active sites. In this work, an efficient oxygen reduction electrocatalyst is designed that confines plentiful FeCx nanoclusters with Fe‐N4 sites in a concave porous S‐N co‐doped carbon matrix, readily accessible for the oxygen reduction reaction...
Current periosteal grafts have limitations related to low mechanical strength, tissue adhesiveness, and poor osteogenesis and angiogenesis potential. Here, a periosteum mimicking bone aid (PMBA) with similar structure and function to natural periosteum is developed by electrospinning photocrosslinkable methacrylated gelatin (GelMA), l‐arginine‐based unsaturated poly(ester amide) (Arg‐UPEA), and methacrylated...
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