Materials Literature
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We have deposited thin films of yttrium aluminum garnet (YAG) doped with Ce3+ and Yb3+ on quartz and silicon substrates by pulsed laser deposition. Near‐infrared (NIR) quantum cutting which involves the emission of NIR photons through the downconversion from Ce3+ to Yb3+ is realized. Upon the broadband excitation of C…
Fabrication of Highly Porous Platinum by Cyclic Electrodeposition of PtCu Alloys: How do Process Parameters Affect Morphology?, Kloke, Arne, Köhler, Christian, Dryzga, Anna, Gerwig, Ramona, Schumann, Katrin, Ade, Martin, Zengerle, Roland, Kerzenmacher, Sven
Enhanced T1 MRI contrast was observed in mesoporous gadolinosilicates co-doped with aluminium. The effect of gadolinium and aluminium dopant concentration was explored using a high-throughput workflow. The T1 relaxivity increases with lower gadolinium and higher aluminium loadings.
The free-radical initiated copolymerization of 2-(4-chloro-1-naphtyloxy)-2-oxoethyl methacrylate (ClNOEMA) with 2-(diethylamino) ethyl methacrylate (DEAEMA) was carried out in 1,4-dioxane solution at 70 ± 1°C using 2,2′-azobisisobutyronitrile (AIBN) as an initiator with different monomer-to-monomer ratios (ranging fro…
Sol–gel chemistry offers versatile new ways to prepare catalysts with tunable compositions and in different forms of application. In particular the option to obtain catalytic coatings is of interest for microreactors or the deposition of catalysts on monolithic supports. The present study explored a sol–gel approach f…
The prediction of conformations and protonation sites for the macrocyclic ligands H2DO2A (1,4,7,10-tetraazacyclododecane-1,7-diacetic acid) and H2ODO2A (1-oxa-4,7,10-triazacyclododecane-4,10-diacetic acid) has been performed employing the simulated annealing (SA) method and density functional theory (DFT) calculations…
Lossy frequency selective surfaces have been used to design thin and broadband electromagnetic absorbers. Unit cell of the FSS is based on two concentric Minkowski loops. In the first design, the Minkowski loops are loaded with lumped resistors in different configurations. In the second design, Minkowski loops are des…
The chain-like polynuclear coordination compounds (ZnBr2)n(18-crown-6)2 (n = 4, 6, 8, 10) and [Zn5Br9][N(Tf)2] are obtained by reacting ZnBr2, SnBr4 and 18-crown-6 in the ionic liquid [(n-Bu)3MeN][N(Tf)2] (N(Tf)2: bis(trifluoromethylsulfonyl)imide). Structurally, chain-like anionic building units with corner- and edge…
Trace elements are potentially toxic to human life and the environment. Element toxicity depends on chemical associations in soils. Therefore, determining the chemical form of an element in soils is important to evaluate its mobility and bioavailability. Initial soil development in river floodplains influences soil pr…
Polyaniline /sawdust /titanium oxide (PANI/SD/TiO2) composite was chemically synthesised by insitu polymerization of aniline monomer in acidic medium containing sawdust and titanium oxide. The structure and morphological variations of PANI/SD/TiO2 composite were interrogated by means of spectroscopy (FTIR, UV-visible,…
In this article, we have examined toxicity of nanostructures such as flower-like ZnO capped with starch, spherical uncapped ZnO and spherical CdS on aquatic plant Hydrilla verticillata, which has not done before. Hydrilla plant was exposed by these nanoparticles at a concentration of 400 mg/L for 7 days and changes in…
Mesenchymal stem cells (MSC) are currently being evaluated in equine clinical studies for their potential to treat various disorders and injuries. Studies have shown that both autologous and allogeneic stem cells appear to be safe. However, an efficient cell expansion method that is reliable and cost-effective is warr…
The accumulation \nof agricultural waste either in solid or liquid form causes environmental concern. In the utilisation of \nagricultural waste for developing sustainable construction material, cyclotriphosphazene-incorporated sago \nwastes as pendant groups were prepared and structurally characterised using infrared…
We report the spontaneous fragmentation of gold nanoparticles (AuNPs) induced, in aqueous solution at room temperature, by thiol derivative of ubiquinone, which involves the energetic electron injection from thiol-ubiquinone to the gold nanoparticles.
Toxicity of nanoparticles on the human health is one main feature for successful application of nanoparticles in medicine. In this paper, the cytotoxicity effects of CZF-MNPs and CZF-MNPs @ DMSA were evaluated. For this purpose, at first the characterization of Cobalt-Zinc Ferrite Magnetic Nanoparticles (CZF-MNPs) coa…
An application of the sinc sum function in Hilbert transformer (HT) is studied. The expression of the frequency re- sponse of HT is expressed with sinc sum functions. Some properties of sub-amplitude response of HT are proved by using the properties of the sinc sum function. A general HT formula is obtained theoretica…
Lightly cross-linked poly(4-vinyl pyridine) has been synthesized from 4-vinyl pyridine and a small amount of ethylene glycol dimethacrylate (EGDMA) in aqueous medium through micelle technique. The polymer is then quaternized with 1,4-dibromobutane to develop an anion exchange resin with high selectivity and ion exchan…
The paper suggests a new method that combines the Kennard and Stone algorithm (Kenstone, KS), hierarchical clustering (HC), and ant colony optimization (ACO)-based extreme learning machine (ELM) (KS-HC/ACO-ELM) with the density functional theory (DFT) B3LYP/6-31G(d) method to improve the accuracy of DFT calculations f…
Conical frustums with quasihexagonal nanostructures are fabricated on an InGaP window layer of single junction GaAs solar cells using a polystyrene nanosphere lithography technique followed by anisotropic etching processes. The optical and photovoltaic characteristics of the conical frustum nanostructured solar cells…
A series of Ba 2.99-x Mg 0.9 Si 2 O 8 (BMS):0.01Eu 2+ , xTb 3+ , 0.1Mn 2+ phosphors (x = 0–0.3) were synthesized via high-temperature solid-state reaction method, and the influence of Tb 3+ content on luminescence properties of the phosphors were investigated by photoluminescence (PL) and micro cathodoluminescence (μ-…