The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Uneven and insufficient encapsulation caused by surface tension between supporting and phase change materials (PCMs) can be theoretically avoided if the encapsulation process co‐occurs with the formation of supporting materials in the same environment. Herein, for the first time, a one‐pot one‐step (OPOS) protocol is developed for synthesizing TiO2‐supported PCM composite, in which porous TiO2 is...
Active tether and transportation of cargoes on cytoskeletal highway enabled by molecular motors is key for accurate delivery of vesicles and organelles in the complex intracellular environment. Here, a hybrid system composed of colloidal motors and self‐assembled lipid tubes is designed to mimic the subcellular traffic system in living cells. The colloidal motors, composed of gold‐coated hematite,...
The rapid capacity degradation and poor rate capability hinder the application of Rich‐Ni layered LiNixCoyMnzO2 (NCM) as cathode materials for high‐energy lithium‐ion batteries. In this study, density functional theory (DFT) calculations, combined with conventional electrochemical measurements, reveal from the atomic view that the dual improvements in electronic and ionic conductivities are the main...
The repair of bone defects caused by osteosarcoma resection remains a clinical challenge because of the tumor recurrence and bacterial infection. Combining tumor and bacterial therapy with bone regeneration properties in bone implants is a promising strategy for the treatment of osteosarcoma. Here, a layer of MgO/FeOx nanosheet is constructed on the Ti implant to prevent tumor recurrence and bacterial...
A new perspective is proposed in the design of pore‐space‐partitioned MOFs that is focused on ligand symmetry properties sub‐divided here into three hierarchical levels: 1) overall ligand, 2) ligand substructure such as backbone or core, and 3) the substituent groups. Different combinations of the above symmetry properties exist. Given the close correlation between nature of chemical moiety and its...
The pursuit of single‐assembled molecular cage reactors for complex tandem reactions is a long‐standing target in biomimetic catalysis but still a grand challenge. Herein, nanozyme‐like organic cages are reported by engineering air‐stable radicals into the skeleton upon photoinduced electron transfer. The generation of radicals is accompanied by single‐crystal structural transformation and exhibits...
Surface modification of cathodes using Ni‐rich coating layers prevents bulk and surface degradation for the stable operation of Li–ion batteries at high voltages. However, insulating and dense inorganic coating layers often impede charge transfer and ion diffusion kinetics. In this study, the fabrication of dual functional coating materials using metal–organic polyhedra (MOP) with 3D networks within...
The in situ free carbon generated in polymer‐derived ceramics (PDCs) plays a crucial role in their unique microstructure and resultant properties. This study advances a new phenomenon of graphitization of PDCs. Specifically, whether in micro‐/nanoscale films or millimeter‐scale bulks, the surface/interface radically changes the fate of carbon and the evolution of PDC nanodomains, promotes the graphitization...
Electrochemical nitrate reduction to ammonia (NRA) provides an efficient, sustainable approach to convert the nitrate pollutants into value‐added products, which is regarded as a promising alternative to the industrial Haber–Bosch process. Recent studies have shown that oxygen vacancies of oxide catalysts can adjust the adsorption energies of intermediates and affect their catalytic performance. Compared...
Methicillin‐resistant Staphylococcus aureus (MRSA)‐infected skin wounds have caused a variety of diseases and seriously endanger global public health. Therefore, multidimensional strategies are urgently to find antibacterial dressings to combat bacterial infections. Antibacterial hydrogels are considered potential wound dressing, while their clinical translation is limited due to the unpredictable...
This work reports experimental demonstrations of reversible crystalline phase transition in ultrathin molybdenum ditelluride (MoTe2) controlled by thermal and mechanical mechanisms on the van der Waals (vdW) nanoelectromechanical systems (NEMS) platform, with hexagonal boron nitride encapsulated MoTe2 structure residing on top of graphene layer. Benefiting from very efficient electrothermal heating...
The thermistor, typically made from metallic oxides, is a type of resistor whose electrical resistance is dependent on its temperature. Despite the wide usage, the limitations of ceramic thermistors become increasingly apparent as devices with improved performances are sought and as new applications emerge. Herein, a thermistor that is showed with a beta (B) value of 10 000 K can be made exclusively...
Membrane technology has shown a viable potential in conversion of liquid‐waste or high‐salt streams to fresh waters and resources. However, the non‐adjustability pore size of traditional membranes limits the application of ion capture due to their low selectivity for target ions. Recently, covalent organic frameworks (COFs) have become a promising candidate for construction of advanced ion separation...
Starvation therapy kills tumor cells via consuming glucose to cut off their energy supply. However, since glucose oxidase (GOx)‐mediated glycolysis is oxygen‐dependent, the cascade reaction based on GOx faces the challenge of a hypoxic tumor microenvironment. By decomposition of glycolysis production of H2O2 into O2, starvation therapy can be enhanced, but chemodynamic therapy is limited. Here, a...
Anisotropically hybridized porous crystalline Li‐S battery separators based on porous crystalline materials that can meet the multiple functionalities of both anodic and cathodic sides are much desired for Li‐S battery yet still challenging in directional design. Here, an anisotropically hybridized separator (CPM) based on an ionic liquid‐modified porphyrin‐based covalent‐organic framework (COF‐366‐OH‐IL)...
Electrocatalytic alkyne semi‐hydrogenation has attracted ever‐growing attention as a promising alternative to traditional thermocatalytic hydrogenation. However, the correlation between the structure of active sites and electrocatalytic performance still remains elusive. Herein, the energy difference (∆ε) between the d‐band center of metal sites and π orbital of alkynes as a key descriptor for correlating...
Construction of 2D graphic carbon nitrides (g‐CNx) with wide visible light adsorption range and high charge separation efficiency concurrently is of great urgent demand and still very challenging for developing highly efficient photocatalysts for hydrogen evolution. To achieve this goal, a two‐step pyrolytic strategy has been applied here to create ultrathin 2D g‐CNx with extended the π‐conjugation...
Silica nanoparticles (SiNPs) are one of the most common inorganic nanomaterials. Autophagy is the predominant biological response to nanoparticles and transcription factor EB (TFEB) is a master regulator of the autophagy–lysosome pathway. Previous studies show that SiNPs induce autophagosome accumulation, yet the precise underlying mechanisms remain uncertain. The present study investigates the role...
To separately explore the importance of hydrophilicity and backbone planarity of polymer photocatalyst, a series of benzothiadiazole‐based donor–acceptor alternating copolymers incorporating alkoxy, linear oligo(ethylene glycol) (OEG) side chain, and backbone fluorine substituents is presented. The OEG side chains in the polymer backbone increase the surface energy of the polymer nanoparticles, thereby...
Photocatalytic CO2 reduction is severely limited by the rapid recombination of photo‐generated charges and insufficient reactive sites. Creating electric field and defects are effective strategies to inhibit charge recombination and enrich catalytic sites, respectively. Herein, a coupled strategy of ferroelectric poling and cationic vacancy is developed to achieve high‐performance CO2 photoreduction...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.