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Conjugated polymer has the potential to be applied on flexible devices as an active layer, but further investigation is still hindered by poor conductivity and mechanical stability. Here, this work demonstrates a dopant‐enhanced conductive polymer thin film and its application in dimethyl methylphosphonate (DMMP) sensor. Among five comparable polymers this work employs, poly(bisdodecylthioquaterthiophene)...
Electrocatalysts with high activity and durability for acidic oxygen evolution reaction (OER) play a crucial role in achieving cost‐effective hydrogen production via proton exchange membrane water electrolysis. A novel electrocatalyst, Te‐doped RuO2 (Te–RuO2) nanotubes, synthesized using a template‐directed process, which significantly enhances the OER performance in acidic media is reported. The...
Copper‐nitrogen‐doped carbon‐based nanocatalysts (Cu‐NCs), containing atomically dispersed Cu‐NxC4‐x sites, are efficient in boosting the Fenton‐like reaction. However, the mechanisms of the Fenton‐like reaction, including the pH effect on the products and the effect of the coordination environment on catalytic activity, remain controversial, restricting the development of Cu‐NCs. Cu‐NCs are experimentally...
Liquid crystal elastomers (LCEs) with promising applications in the field of actuators and soft robotics are reported. However, most of them are activated by external heating or light illumination. The examples of electroactive LCEs are still limited; moreover, they are monofunctional with one type of deformation (bending or contraction). Here, the study reports on trilayer electroactive LCE (eLCE)...
Room‐temperature gallium‐based liquid metals (RT‐GaLMs) have garnered significant interest recently owing to their extraordinary combination of fluidity, conductivity, stretchability, self‐healing performance, and biocompatibility. They are ideal materials for the manufacture of flexible electronics. By changing the composition and oxidation of RT‐GaLMs, physicochemical characteristics of the liquid...
Defect engineering is promising to tailor the physical properties of 2D semiconductors for function‐oriented electronics and optoelectronics. Compared with the extensively studied 2D binary materials, the origin of defects and their influence on physical properties of 2D ternary semiconductors are not clarified. Here, the effect of defects on the electronic structure and optical properties of few‐layer...
Vanadium trioxide (V6O13) cathode has recently aroused intensive interest for aqueous zinc‐ion batteries (AZIBs) due to their structural and electrochemical diversities. However, it undergoes sluggish reaction kinetics and significant capacity decay during prolonged cycling. Herein, an oxygen‐vacancy‐reinforced heterojunction in V6O13−x/reduced graphene oxide (rGO) cathode is designed through electrostatic...
Metal‐free carbon‐based materials have gained recognition as potential electrocatalysts for the oxygen reduction reaction (ORR) in new environmentally‐friendly electrochemical energy conversion technologies. The presence of effective active centers is crucial for achieving productive ORR. In this study, we present the synthesis of two metal‐free dibenzo[a,c]phenazine‐based covalent organic frameworks...
Harvesting electrical energy from water and moisture has emerged as a novel ecofriendly energy conversion technology. Herein, a multifunctional asymmetric polyaniline/carbon nanotubes/poly(vinyl alcohol) (APCP) that can produce electric energy from both saline water and moisture and generate fresh water simultaneously is developed. The constructed APCP possesses a negatively charged porous structure...
The balance between large nonlinear optical (NLO) effect and wide bandgap is the key scientific issue for the exploration of infrared NLO materials. Targeting this issue, two new pentanary chalcogenides KGaGe1.37Sn0.63S6 (1) and KGaGe1.37Sn0.63Se6 (2) are obtained by the three‐in‐one strategy, viz. three types of fourfold‐coordinated metal elements co‐occupying the same site. They crystallize in the...
Sodium‐ion batteries (SIBs) have received increasing attention because of their appealing cell voltages and cost‐effective features. However, the atom aggregation and electrode volume variation inevitably deteriorate the sodium storage kinetics. Here a new strategy is proposed to boost the lifetime of SIB by synthesizing sea urchin‐like FeSe2/nitrogen‐doped carbon (FeSe2/NC) composites. The robust...
Rare‐earth (RE) chalcogenides have been extensively studied as infrared nonlinear optical (NLO) materials because of their nice integrated performances; however, very few RE chalcophosphates are involved for this topic. Here, three quaternary RE selenophosphates, KSmP2Se6 (1), KGdP2Se6 (2), and KTbP2Se6 (3), are profoundly studied for their NLO potentials. Their noncentrosymmetric P21 structures feature...
2D covalent organic frameworks (COFs) are considered as one kind of the most promising crystalline porous materials for solar‐driven hydrogen production. However, adding noble metal co‐catalysts into the COFs‐based photocatalytic system is always indispensable. Herein, through a simple solvothermal synthesis method, TpPa‐1‐COF, a typical 2D COF, which displays a wide light absorption region, is rationally...
Tumor microenvironment (TME)‐responsive intelligent photodynamic therapy (PDT) systems have attracted increasing interest in anticancer therapy, due to their potential to address significant and unsatisfactory therapeutic issues, such as limited tissue penetration, inevitable normal tissue damage, and excessive impaired vessels. Here, an H2O2‐triggered intelligent LCL/ZnO PDT nanodelivery system is...
Solid phase conversion sulfur cathode is an effective strategy for eliminating soluble polysulfide intermediates (LiPSs) and improving cyclability of Li‐S batteries. However, realizing such a sulfur cathode with high sulfur loading and high capacity utilization is very challenging due to the insulating nature of sulfur. In this work, a strategy is proposed for fabricating solid phase conversion sulfur...
Epithelial to Mesenchymal Transition
The cover image shows that the malignant cells generated by the epithelial‐mesenchymal transition (EMT) are breaking away from the benign ones and spreading elsewhere. In article number 2106498, using single‐particle tracking of β1‐integrins labelled with fluorescent quantum dots, Yan Wei, Peng‐Ye Wang, Hui Li, and co‐workers discover a significantly enhanced diffusion...
Cell morphology and migration depend critically on the adhesions on the extracellular matrix (ECM), determined by the transmembrane protein integrins. The epithelial to mesenchymal transition (EMT) is a prominent transformation process in which adherent cells acquire a mesenchymal phenotype and a promoted migration. EMT plays important roles in embryonic development and cancer metastasis, and its...
The property expansion of 3D functionalized covalent organic frameworks (COFs) is important for developing their potential applications. Herein, the first case of 3D hydrazone‐decorated COFs as pH‐triggered molecular switches is reported, and their application in the stimuli‐responsive drug delivery system is explored. These functionalized COFs with hydrazone groups on the channel walls are obtained...
Hard carbons are actively developed as a promising anode material for sodium ion batteries (SIBs). However, their sodium storage mechanism is poorly understood, leading to difficulties in design and development of high‐performance hard carbon anode materials. In this work, hollow carbon spheres (HCSs) with different shell thickness as a model material to investigate the correlation between the microstructural...
Developing functionalized 3D covalent organic frameworks (3D COFs) is critical to broaden their potential applications. However, the introduction of specific functionality in 3D COFs remains a great challenge because most of the functional groups are not compatible with the synthesis conditions. Herein, for the first time 3D thioether‐based COFs (JUC‐570 and JUC‐571) for mercury (Hg2+) removal from...
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