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。
We investigate the morphological evolution of nonaxisymmetric capillary bridges in slit-pore geometry as the height of the pore and aspect ratio of the bridge are varied. The liquid bridges are formed between two hydrophobic surfaces patterned with hydrophilic strips. The aspect ratio of the capillary bridges (length/…
Protein polymers are repetitive amino acid sequences that can assemble monodisperse nanoparticles with potential applications as cancer nanomedicines. Of the currently available molecular imaging methods, positron emission tomography (PET) is the most sensitive and quantitative; therefore, this work explores microPET…
Abstract In this work, due to the effective interfacial interactions between reduced graphene oxide (RGO) planes and polyaniline (PANI) chains, a conductive network was designed and fabricated by in situ polymerization of aniline monomer on the RGO planes. Then, the polyvinyl chloride (PVC) was modified with the condu…
The interaction of nanodiamond (ND) particles produced by detonation synthesis with water molecules in ND water suspensions was studied using Raman and photoluminescence spectroscopy. To address the role of the surface chemistry of ND particles, NDs with heterogeneous surface groups as well as ND particles enriched wi…
The objective of this study was to evaluate the biodegradability of thiolated chitosans in comparison to unmodified chitosan. Mediated by carbodiimide, thioglycolic acid (TGA) and mercaptonicotinic acid (MNA) were covalently attached to chitosan via formation an amide bond. Applying two different concentrations of car…
Gold nanoparticles are of high interest in the biodiagnostic and bioimaging field owing to their unique optical properties such as localized surface plasmon resonance (LSPR) and high Rayleigh scattering efficiency in the visible range. Although biofunctionalization is a prerequirement prior to their integration in dia…
Abstract Wood is a hierarchical composite, consisting at its lowest hierarchy level of crystalline cellulose elementary fibrils with diameters of 2–4 nm embedded in a matrix of hemicelluloses and lignin. At the micrometer scale, it has a cellular architecture resembling a honeycomb structure. The transformation of the…
7-(4-Fluorophenyl) and 7-phenyl-substituted 1,3-diphenyl-1,4-dihydro-1,2,4-benzotriazin-4-yl radicals were characterized by X-ray diffraction analysis and variable-temperature magnetic susceptibility studies. The radicals pack in 1D π stacks of equally spaced slipped radicals with interplanar distances of 3.59 and 3.6…
Resonance Raman profiles of WS${}_{2}$ nanotubes of different diameter are presented. We show that the A excitonic transition energy lies below the bulk value and is increasingly redshifted with decreasing diameter of the nanotubes. The findings are attributed to strain effects associated with the curvature of the nan…
The existing knowledge on the electrodynamics of invisibility cloaking based on transformation optics is reviewed from an integrated science and engineering perspective. Several significant electromagnetic problems that have resulted in intense discussions in the past few years are summarized in terms of propagation,…
Artificial Photosynthesis System: A novel photocatalyst/enzyme-coupled artificial photosynthesis system harvests solar energy as seen in green plants through the combination of photocatalysis and biocatalysis and induces asymmetry in an achiral substrate (see picture; ADPR=adenosine diphosphate ribose, NADP=nicotinami…
Using molecular dynamics simulations, the forces acting on nanoparticles inside polymer brushes are computed. Vertical force profiles are obtained under variation of grafting density, nanoparticle (NP) size, solvent quality, and degree of polydispersity. The force profiles are integrated to obtain the inclusion free e…
Sonnenanbeter: Ein gekoppeltes Photokatalysator-Enzym-System als neuartiges künstliches Photosynthesesystem sammelt Solarenergie nach dem Vorbild von Grünplanzen über eine Kombination aus Photo- und Biokatalyse und induziert Asymmetrie in einem achiralen Substrat (siehe Bild; ADPR=Adenosindiphosphatribose, NADP=Nicoti…
Abstract Micropatterned freestanding superelastic TiNi films in the thickness range between 20 and 100 µm are attractive materials for medical in vivo applications. Micropatterning of these materials by UV lithography and etching is a challenging task, as wet etching has severe design limitations due to its isotropic…
Here we represent thermodynamics on soluble carbon nanotubes that enables deep understanding the interactions between single-walled carbon nanotubes (SWNTs) and molecules. We selected sodium cholate and single-stranded cytosine oligo-DNAs (dCn (n = 4, 5, 6, 7, 8, 10, 15, and 20)), both of which are typical SWNT solubi…
The choice of a suitable support for gold nanoparticles (Au NPs) enabled the direct oxidation of unreactive aliphatic alcohol, 1-octanol, to octanoic acid and octyl octanoate in the absence of a base. Under optimized conditions, Au NPs supported on NiO (Au/NiO) exhibited remarkably high catalytic activities and excell…
The temperature dependence of the phonon spectrum in the superconducting transition-metal dichalcogenide 2$H$-NbS${}_{2}$ is measured by diffuse and inelastic x-ray scattering. A deep, wide, and strongly temperature-dependent softening of the two lowest-energy longitudinal phonon bands appears along the $\ensuremath{\…
An extensive investigation of strontium titanate, SrTiO 3 (STO), nanospheres synthesized via a microwave-assisted hydrothermal (MAH) method has been conducted to gain a better insight into thermodynamic, kinetic, and reaction phenomena involved in STO nucleation and crystal growth processes. To this end, quantum-chemi…
High power characteristics of lead‐free ( Bi , Na ) Ti O 3 ( BNT ) and Ba Ti O 3 ( BT )‐based piezoceramics were investigated and compared to commercial “hard” Pb ( Zr , Ti ) O 3 PZT materials. Acceptor‐modified BNT and BT ‐based ceramics showed typical “hardening” characteristics, exhibiting high mechanical quality f…
One of the factors limiting electron mobility in supported graphene is remote phonon scattering. We formulate the theory of the coupling between graphene plasmon and substrate surface polar phonon (SPP) modes and find that it leads to the formation of interfacial plasmon-phonon (IPP) modes, from which the phenomena of…