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。
Carbon nanotubes (CNTs) have emerged as a new alternative and efficient tool for transporting molecules with biotechnological and biomedical applications, because of their remarkable physicochemical properties. Encapsulation of functional molecules into the hollow chambers of CNTs can not only stabilize encapsulated m…
Pd/MgAl-layered double hydroxide (LDH) was synthesized in situ on the surface of spherical Al 2 O 3 to obtain a Pd/MgAl-LDH/Al 2 O 3 catalyst, using hexamine as both a precipitant for LDH and a reductant for Pd 2+ . After calcination and reduction, another Pd/MgO-Al 2 O 3 catalyst was obtained. As a comparison, the Pd…
Abstract We synthesized a ferrocene‐based burning rate catalyst, 2‐(ferrocenylpropyl) dimethylsilane (FPDS). FPDS‐grafted hydroxyl‐terminated polybutadiene (FPDS‐ g ‐HTPB) was synthesized using hydrosilylation with a Pt catalyst. The structures of FPDS and FPDS‐ g ‐HTPB were investigated by Fourier transform infrared…
ZnO-core/SnO 2 -shell nanorods were fabricated by a two-step process: thermal evaporation of ZnO powders and atomic layer deposition of SnO 2 . Transmission electron microscopy and X-ray diffraction revealed the cores and shells of the as-prepared core–shell nanorods to be single crystal wurtzite-type ZnO and polycrys…
This work reports the resistance to protein adsorption and bacterial biofilm formation by chiral monolayers of polyol-terminated alkanethiols surrounding micrometer-sized patterns of methyl-terminated alkanethiols on gold films. We discover that patterned surfaces surrounded by chiral polyol monolayers can distinguish…
Copper-based hierarchical micro/nanostructures were prepared using a novel electrochemical route on polypyrrole−polystyrene sulfonate (PPy−PSS) thin films. The resulting structures are composed of copper hydroxysulfates, as confirmed by the electrochemical, spectroscopic, and X-ray diffraction characterization. The el…
A design approach for the preparation of the {(DMAH) 7 [H 2 SbW 18 O 60 ]} ( DMAH-2 ) and {(DMAH) 7 [H 2 BiW 18 O 60 ]} ( DMAH-3 ) (DMAH = dimethylammonium) systems in a highly pure crystalline form is presented, and the latter is characterized by electrospray ionization mass spectrometry (ESI-MS) methods for the firs…
We demonstrate that metal oxides exhibit the same relationship between lattice strain and electronic band gap as nonpolar semiconductors. Epitaxial growth of ultrathin [111]-oriented single-crystal indium-oxide films on a mismatched Y-stabilized zirconia substrate reveals a net band-gap decrease, which is dissipated a…
Crystalline calcium-oxide films of various thicknesses have been grown on a Mo(001) support. The growth behavior and resulting film morphology have been characterized with low-energy electron diffraction, Auger spectroscopy, and scanning tunneling microscopy. At low film thickness, a considerable interdiffusion of Mo…
In nanoporous alumina, surface pretreatment prior to the anodization process plays a crucial role in the nanopore formation, strongly influencing their organization and size uniformity. In this work, an effective control of the anodic aluminum oxide (AAO) hexagonal order and nanopore size uniformity was achieved by si…
Transformation optics have developed rapidly in recent years as a novel method to control the propagation of electromagnetic waves or light rays, while conformal mapping is a powerful tool used for decades solving problems in fields. In this paper, following the similarity of both methods on manipulating coordinate me…
Abstract A new and simple method was developed to produce gelatin nanoparticles of ∼ 30–40 nm for use as carriers for drug release applications. The nanoparticles were uniform in size and well dispersed. An anticancer drug, 5‐fluorouracil, was encapsulated with an efficiency as high as 85%. The nanoparticles showed su…
Thin films of four-coordinated perfluoroalkyl-substituted phthalocyanines were prepared by physical vapor deposition. The electrochemical redox characteristics and simultaneous changes in the optical absorbance spectra of the films (40−215 nm) in contact with an aqueous LiCl electrolyte for charge compensation were co…
Ultrathin films of titanium oxide were grown on (22 × √3)-reconstructed Au(111) surfaces by Ti evaporation in ultrahigh vacuum (UHV). Following Ti deposition onto room temperature Au substrates, the samples were oxidized at 600 °C in 10 −6 Pa O 2 . Scanning tunneling microscopy (STM) images show that three different o…
In this contribution we outline polyelectrolyte (PEL) complex (PEC) nanoparticles, prepared by mixing solutions of the low cost PEL components poly(ethyleneimine) (PEI) and poly(acrylic acid) (PAC). It was found, that the size and internal structure of PEI/PAC particles can be regulated by process, media and structura…
Abstract Knowledge about the working mechanism of the PbS:P3HT:PCBM [P3HT=poly(3‐hexylthiophene), PCBM=[6,6]‐phenyl‐C 61 ‐butyric acid methyl ester] hybrid blend used for efficient near‐infrared photodiodes is obtained from time‐resolved photoluminescence (PL) studies. To understand the role of each component in the h…
Biocompatibility is of paramount importance for drug delivery, tumor labeling, and in vivo application of nanoscale bioprobes. Until now, biocompatible surface processing has typically relied on PEGylation and other surface coatings, which, however, cannot minimize clearance by macrophages or the renal system but may…
The ability to control nanostructure shape can strongly affect the overall properties of that system. Here we report the ability to deterministically control nanostructure shape, surface facet orientation, and surface potentials of the oxide semiconductor Cu(2)O. Epitaxial Cu(2)O nanostructures with different shapes a…
Synthesis, spectral, and single-crystal X-ray structural analysis of meso-aryl triphyrin(2.1.1) featuring three pyrrole rings and four meso-aryl rings are described. The title compound represents the first example of a ring-contractedmeso-aryl β-unsubstituted free-base triphyrin containing only pyrrole rings reported…
Abstract The corrosion resistance of laboratory press‐hardened components in aluminized, galvanized or galvannealed boron steels was evaluated through VDA 621‐415 cyclic test for the automotive industry. 22MnB5 uncoated steel for hot stamping and standard galvanized steel for cold forming were also included as referen…