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。
This paper reports a simple, one-step procedure to synthesize carbon nanotubes (CNTs) decorated simultaneously with gold nanoparticles and polythiophene, without previous CNT surface functionalization. The method involves the reaction between an aqueous solution of HAuCl 4 and thiophene in an aqueous dispersion of car…
Condensations of 1-methyl and 1-phenyl-2,4-pyrroledicarbaldehydes with a tripyrrane in TFA-dichloromethane, followed by oxidation with aqueous FeCl(3), gave novel cross-conjugated meso-unsubstituted N-confused porphyrins (NCPs; 12). These porphyrin analogues showed significant diatropic ring currents that were enhance…
In this work, we demonstrate that indium hydroxide (In(OH) 3 ) nanospheres with hollow interior, whose shells are constructed of oriented-attachment nanocubes, have been fabricated via a dl -asparagine-assisted synthesis route without any template. NH 3 and dl -aspartic acid from the hydrolysis of dl -asparagine act a…
The molten salt waste from the pyroprocess is one of the problematic wastes to directly apply a conventional process such as vitrification or ceramization. This study suggested a novel method using a reactive material for metal chlorides at a molten temperature of salt waste, and then converting them into manageable p…
A new concept in speciation analysis based on the diffusive gradients in thin films (DGT) technique is described. By use of two sets of DGT devices, one set with perfluorosulfonated ionomer (Nafion) diffusive membranes and the other with polyacrylamide, anionic and uncharged analytes can be fractionated on the basis o…
Gold nanorods with longitudinal surface plasmon resonance wavelengths ranging from 544 to 840 nm have been coated with silica at varying thicknesses. Silica-coated Au nanorods are vitreophilic, and mesostructured composite thin films have thereafter been prepared by dispersing silica-coated Au nanorods in the silica p…
Three new copper(II) complexes, [CuL(1)(NO(2))](n) (1), [CuL(2)(NO(2))] (2), and [CuL(3)(NO(2))] (3), with three similar tridentate Schiff base ligands [HL(1) = 6-amino-3-methyl-1-phenyl-4-azahept-2-en-1-one, HL(2) = 6-amino-3-methyl-1-phenyl-4-azahex-2-en-1-one, and HL(3) = 6-diethylamino-3-methyl-1-phenyl-4-azahex-2…
Electric deflection experiments have been performed on neutral Sn(N) clusters (N = 6-20) at different nozzle temperatures in combination with a systematic search for the global minimum structures and the calculation of the dielectric properties based on density functional theory. For smaller tin clusters (N = 6-11), a…
Structural foams offer numerous advantages over their solid counterparts, including greater geometrical accuracy, the absence of sink marks on the final product’s surface, lower weight (and, by extension, the need for less material), and a higher stiffness-to-weight ratio. The possibility of achieving a suitable void…
An important point regarding the development of stable biofunctional nanoparticles for biomedical applications is their potential for aspecific interactions with the molecules of the biological environment. Here we report a new self-assembled ligand monolayer system for gold nanoparticles called Mix-matrices, formed b…
Transparent glass ceramics containing hexagonal GdF 3 nanocrystals were fabricated by melt-quenching and subsequent heating of glass with composition of 44SiO 2 −28Al 2 O 3 −17NaF−11GdF 3 . The GdF 3 nanocrystals with mean size of 6 nm were precipitated during quenching of the melt. Increasing the heating temperature…
We developed multifunctional fluorescent nanoparticles suitable for the nonviral delivery of negatively charged molecules like RNA. Therefore, we incorporated the recently developed branched hCT-derived carrier peptide hCT(18-32)-k7 on the surface of luminescent quantum dots (QDs). Besides detailed characterization of…
We report the synthesis of covalently stabilized hollow capsules from biodegradable materials using a combination of click chemistry and layer-by-layer (LbL) assembly. The biodegradable polymers poly(L-lysine) (PLL) and poly(L-glutamic acid) (PGA) were modified with alkyne and azide moieties. Linear film buildup was o…
A pore swelling approach was developed for the synthesis of ultralarge mesoporous carbons by using diblock copolymer PEO 125 - b -PS 230 as a template, homopolystyrene ( h -PS 49 ) as a pore expander, resol as a carbon source, and THF as a solvent through solvent evaporation induced self-assembly (EISA). Small-angle X…
A general method is presented for growing laterally aligned and patterned ZnO nanowire (NW) arrays on any substrate as long as it is flat. The orientation control is achieved using the combined effect from ZnO seed layer and the catalytically inactive Cr (or Sn) layer for NW growth. The growth temperature (<100 °C) is…
Superparamagnetic Fe 3 O 4 @polyaniline core/shell microspheres with well-defined blackberry-like morphology have been synthesized via a simple in situ surface polymerization method. The thickness of the polyaniline (PANI) shell can be selectively obtained by tuning the reaction time and monomer concentration. The pol…
The fluorescent dye Alexa Fluor 488 or the anticancer drug doxorubicin is attached to the surface and inner pore walls of mesoporous Si particles by covalent attachment, and the oxidation-induced release of each molecule is studied. The molecules are bound to the Si matrix using a 10-undecenoic acid linker, which is a…
A nanohybrid comprising silver nanoparticles within third-generation dendritic poly(amidoamine) (PAMAM) grafted onto multiwalled carbon nanotubes (MWNTs) was applied as an antimicrobial agent in solution. The high abundance of amine groups on the dendrimer-modified MWNTs (d-MWNTs) provided sites for reduction and prec…
The present parametric study deals with the meso-scale modelling of concrete subjected to cyclic compression, which exhibits hysteresis loops during unloading and reloading. Concrete is idealised as a two-dimensional three-phase composite made of aggregates, mortar and interfacial transition zones (ITZs). The meso-sca…
Molecular dynamics simulations have been used to characterize the structure of single chitin and chitosan chains in aqueous solutions. Chitin chains, whether isolated or in the form of a β-chitin nanoparticle, adopt the 2-fold helix with ϕ and φ values similar to its crystalline state. In solution, the intramolecular…