Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The critical phenomena associated to the liquid-to-solid transition of quasi-two-dimensional vibrated granular systems is studied using molecular dynamics simulations of the inelastic hard sphere model. The critical properties are associated to the fourfold bond-orientational order parameter χ_{4}, which measures the…
Due to its hydrophobicity and other unique physicochemical properties, graphene oxide (GO) has been extensively utilized in various biological applications. However, introducing nanomaterials into the biological environment may raise serious risk in terms of nanotoxicity, leading to some unintended changes to the stru…
The key factor in the use of lithium ion batteries is the formation of an electrically insulating solid layer that allows lithium ion transport but stops further electrolyte redox reactions on the electrode surface, therefore termed the solid electrolyte interphase (SEI). We have studied the preceding stages to the SE…
A hexanuclear CdII metal–organic framework (1) based on 4‐(1H‐pyrazole‐4‐carboxamido)benzoic acid (H2L) and featuring a three‐dimensional microporous framework was synthesized. Notably, 1 shows a unique fluorescence‐quenching response toward Fe3+ ions with high selectivity and sensitivity (Stern–Volmer constant KSV =…
Abstract An existing gel stretching device is modified, permitting the use of organic solvents for the study of small molecules. Different from the original device, gels are stretched into 4 mm open‐ended NMR tubes and then inserted into regular 5 mm NMR tubes. No open‐ended tubes are inserted in the NMR probe avoidin…
Herein we have engineered a smart nuclear targeting thiol-modified riboflavin-gold nano assembly, RfS@AuNPs, which accumulates selectively in the nucleus without any nuclear-targeting peptides (NLS/RGD) and shows photophysically in vitro DNA intercalation. A theoretical model using Molecular Dynamics has been develope…
Abstract The experimental detection and synthesis of pentazole (HN5) and its anion (cyclo‐N5−) have been actively pursued for the past hundred years. The synthesis of an aesthetic three‐dimensional metal–pentazolate framework (denoted as MPF‐1) is presented. It consists of sodium ions and cyclo‐N5− anions in which the…
The mechanical and transport properties of submicron thick ionomer films are crucial in the study and understanding of the ionomer–catalyst interfaces in the porous electrodes of energy conversion and storage devices, such as fuel cells and batteries. Interestingly, ionomers in thin films behave differently from bulk…
When medicinal chemists need to improve oral bioavailability (%F) during lead optimization, they systematically modify compound properties mainly based on their own experience and general rules of thumb. However, at least a dozen properties can influence %F, and the difficulty of multiparameter optimization for such c…
Abstract Molecular imaging has become a powerful technique in preclinical and clinical research aiming towards the diagnosis of many diseases. In this work, we address the synthetic challenges in achieving lab‐scale, batch‐to‐batch reproducible copper‐64‐ and gallium‐68‐radiolabelled metal nanoparticles (MNPs) for cel…
A precise characterization of material behavior is necessary to identify yield criteria or hardening laws for an accurate numerical design of sheet metal forming processes. Current models like Yld2000-2d or Hill’48 do not consider the plane strain state, though this condition is primary cause of failure in deep drawin…
Abstract Titanium dioxide (TiO2), which is codoped with nine different rare earth mental ions (RE3+ = lanthanum (La3+), cerium (Ce3+), praseodymium (Pr3+), neodymium (Nd3+), samarium (Sm3+), gadolinium (Gd3+), erbium (Er3+), ytterbium (Yb3+), lutetium (Lu3+)) and nitrogen (N), are synthesized by non‐hydrolytic sol‐gel…
Plate impact experiments in the 100--250 GPa pressure range were done on a $\ensuremath{\langle}100\ensuremath{\rangle}$ single-crystal MgO preheated before compression to 1850 K. Hot Mo(driver)-MgO targets were impacted with Mo or Ta flyers launched by the Caltech two-stage light-gas gun up to 7.5 km/s. Radiative tem…
In the electronic band structure of materials, two-band touching points with linear dispersion always appear in pairs in momentum space. When the pair annihilates, the system undergoes a quantum phase transition from a Weyl semimetal (WSM) to a band insulator (BI), which is described by a new critical theory. This pap…
An understanding of the improvements achieved in the use of cosolvents for methylammonium lead triiodide (MAPbI 3 ):C 70 blend films (MAPbI 3:C 70 ) processing is presented. A comparative study using aromatic (i.e., o -xylene and o -dichlorobenzene) and aliphatic (i.e., methylcyclohexane and chlorocyclohexane) cosolve…
The use of light to control the expression of genes and the activity of proteins is a rapidly expanding field. Whereas many of these approaches use fusion between a light-activable protein and the protein of interest to control the activity of the latter, it is also possible to control the activity of a protein by unc…
Abstract The flexible ZnO/SiO 2 hybrid nanofiber membrane was prepared via electrospinning followed by high-temperature annealing at 600 °C in the air. The hybrid membrane was researched to prepare a flexible pressure sensor, and the experimental results suggest that the flexible pressure sensor has excellent flexibil…
Abstract A direct Z‐scheme type α‐Fe 2 O 3 /FeVO 4 heterostructured photocatalyst with novel nanobelt structure just like the leaves of bryophyllum pinnatum has been successfully synthesized for the first time via integrating a facile electrospinning with annealing procedure. The as‐prepared products are characterized…
The use of RE-Ba–Cu–O [(RE)BCO] bulk superconductors, where RE = Y, Gd, Sm, in practical applications is, at least in part, limited by their mechanical properties and brittle nature, in particular. Alloying these materials with silver, however, produces a significant improvement in strength without any detrimental imp…
The need for the conformal deposition of TiO 2 thin films in device fabrication has motivated a search for thermally robust titania precursors with noncorrosive byproducts. Alkylamido-cyclopentadienyl precursors are attractive because they are readily oxidized, yet stable, and afford environmentally mild byproducts. W…