Materials Literature
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In this paper, we have exhibited a novel strategy for the construction of polyoxometalate (POM) and metal nanoparticle (MNP) integrated silica spheres. To introduce MNPs into the POM embedded silica spheres, we employed the controllable in situ synthesis of MNPs through the photoreduction property of POMs that were pr…
Abstract Silica‐containing polyimide films were prepared by sol‐gel technique using a poly(amic acid) and tetraethoxysilane. The poly(amic acid) was synthesized by solution polycondensation reaction of 4,4′‐oxydiphthalic anhydride with 2,6‐bis(3‐aminophenoxy)benzene and an aminosilane coupling agent, 3‐aminopropyltrie…
Abstract Low-molecular-weight (LMW) chitosan salicylaldehyde Schiff-base and its zinc(II) complexes were synthesized and characterized by Fourier transform-infrared (FT-IR) spectra, transmission electron microscopy (TEM), dynamic light scattering (DLS), gel permeation chromatography-multiangle laser light scattering (…
Abstract Indium tin oxide (ITO) thin films were sputter deposited by using working gas containing hydrogen on glass substrate without any heat treatments. The films demonstrated X‐ray diffraction due to polycrystalline ITO, blue‐green photoluminescence (PL) due to oxygen defects in nano‐structured ITO crystals, and pa…
The symmetry ordering of the valence bands in ZnO is derived from high-resolution magneto-optical measurements of bound excitons. We report on the experimental observation of a hole state related fine splitting for bound excitons in the Voigt configuration. This splitting is related to a nonzero Land\'e $g$ value ${g}…
Gloriosa superba L. (Liliaceae) seeds, known as "kalihari" (Hindi), were phytochemically investigated for colchicine (well known for gout treatment) and other related alkaloid content. Colchicine, 2- demethylcolchicine, 3-demethylcolchicine, and N-formyl-N-deacetylcolchicine were alkaloids isolated from the seeds. The…
Abstract A series of poly(acrylonitrile‐ co ‐butadiene‐ co ‐styrene) (ABS)/organoclays (Cloisite10A, Cloisite25A, and Cloisite30B) nanocomposites are prepared via two different methods: one is a solution blending and the other is a two‐step process where the solution blended mixture is subsequently compounded in the m…
In this study evidence is provided for the existence of a gradient in solubility and rate of dissolution of human tooth enamel. These gradients were obtained quantitatively by applying calcium and phosphate-containing acetate buffers of varying degree of saturation with respect to hydroxyapatite on transversely abrade…
New luminescent electrospun (ES) fibers for pH-tunable colorimetric sensors were prepared from binary blends of poly(phenylquinoline)-block-polystyrene (PPQ-b-PS)/polystyrene (PS) with a single-capillary spinneret. The PPQ-b-PS aggregated domain sizes in the ES fibers prepared from dichloromethane (CH(2) Cl(2) ), chlo…
Abstract A quantitative structure‐property relationship study is performed to develop mathematical models for predicting the flammability characteristics of pure hydrocarbons. The molecular structures of the compounds are numerically represented by various kinds of molecular descriptors. Genetic algorithm based multip…
In this work positively charged polymers based on N-isopropylacrylamide (NIPAAm) have been synthesised and investigated in solution, on surfaces and in polyelectrolyte multilayers (PEMs) in combination with nanofibrillated cellulose (NFC). Polymers having thermoresponsive properties at low salt concentrations in solut…
Author: Moosavi, A. et al.; Genre: Journal Article; Issued: 2009-11-18; Keywords: MPI für Metallforschung; Abt. Dietrich; Nanofluidics; Title: Dynamics of nanodroplets on topographically structured substrates
New approach for synthesis of Co 2+ doped TiO 2 nanoparticles showing room temperature ferromagnetic behavior, through shape transformation of hydrothermally treated scrolled titania nanotubes in the presence of Co 2+ ions is described. The XRD and ICP measurements demonstrated successful incorporation of 0.46 at. % C…
Hydrogen generation by methane steam reforming in a thermally coupled membrane reformer−combustor has been experimentally studied. The concentric three-compartment reactor indirectly couples methane steam reforming with catalytic methane combustion and with a Pd−Ag membrane, to provide extrapure hydrogen. The reactor…
The control of molecular architectures may be essential to optimize materials properties for producing luminescent devices from polymers, especially in the blue region of the spectrum. In this Article, we report on the fabrication of Langmuir-Blodgett (LB) films of polyfluorene copolymers mixed with the phospholipid d…
Solubility data of vitamin C are essential to fields such as medicine, food, and biochemistry. Regarding recent publications, for hydrotropism studies, it is shown that the knowledge of the solubility of vitamin C in different solvents is very important. In the present paper, solubility data of vitamin C in water, eth…
In this study, a KRGDKK (Lys-Arg-Gly-Asp-Lys-Lys) peptide with a RGD sequence is utilized as a functional group to synthesize a novel thermo-sensitive hydrogel. The KRGDKK peptide prepared by a solid phase synthesis approach is coupled to the ends of a poly[(epsilon-caprolactone)-co-lactide]-poly(ethylene glycol)-poly…
An electrochromic zwitterionic viologen, N,N'-bis(3-sulfonatopropyl)-4-4'-bipyridinium, has been used for the first time for doping poly (3,4-ethylenedioxythiopene) (PEDOT) films during electropolymerization. Slow and fast diffusional rates for the monomer at deposition potentials of +1.2 and +1.8 V, respectively yiel…
Abstract A novel high throughput method for synthesis and screening of customized protein‐resistant surfaces was developed. This method is an inexpensive, fast, reproducible and scalable approach to synthesize and screen protein‐resistance surfaces appropriate for a specific feed. The method is illustrated here by com…
In this work zinc azaphthalocyanines (AzaPcs) from the group of tetrapyrazinoporphyrazines and zinc azanaphthalocyanines from the group of tetra[6,7]quinoxalinoporphyrazines (TQP) with eight diethylaminoethylsulfanyl substituents were synthesized. Tertiary amines were later quaternized with ethyl iodide to obtain wate…