Materials Literature
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The structural and kinetic studies of polymerization reactions of ε-caprolactone (ε-CL) using (pyrazolylmethyl)pyridine Cu(II) and Zn(II) complexes as initiators is described. Reactions of 2-(3,5-dimethylpyrazol-1-ylmethyl)pyridine (L1) and 2-(3,5-diphenylpyrazol-1-ylmethyl)pyridine (L2) with Zn(Ac)2·2H2O or Cu(Ac)2·2…
We report the synthesis and MR relevant properties of CyPic3A, a heptadentate chelator that forms ternary Gd(III) complexes of hydration state q = 2. [Gd(CyPic3A)(H2O)2](-) affords an r1 value of 5.70 mM(-1) s(-1) at 1.41 T and 310 K and displays thermodynamic stability and kinetic inertness comparable to FDA approved…
LPG is used as a cleaner substitute for gasoline and diesel for automobiles. However, it is a source of hydrocarbon (HC) emissions, causing adverse effects on living beings and the environment. Therefore, to reduce tailpipe HC emissions, this work aims to develop cobaltite spinel catalysts for the oxidation of a lean…
In this contribution, a totally ecofriendly synthesis of silver nanoparticles from aqueous dissolution of polysaccharides is reported. The synthesis of nanoparticles was performed using aqueous dissolutions of silver nitrate (AgNO3) and carboxymethyl-cellulose (CMC) as both reducing and stabilization agent and using d…
A phosphatase-responsive supramolecular amphiphilic assembly was fabricated as an operationally targeted drug delivery carrier based on the host–guest complexation of amphiphilic calixarene with adenosine triphosphate (ATP). Remarkably, the complexation of calixarene with ATP lowers its critical aggregation concentrat…
-poly (styrene) can be exploited to prepare remarkably diverse self-assembled nanostructures in dispersion from a single block copolymer (BCP). The characteristics of the BCP can be efficiently controlled by tailoring the properties of a guest which preferentially binds to the P2VP block. For example, the incorporatio…
The environmental stability of a solid silicotungstic acid (SiWA)-H 3 PO 4 -poly(vinyl alcohol) (PVA) electrolyte in electrochemical supercapacitor (EC) applications was improved by the incorporation of nano-SiO 2 . Under ambient conditions, enhanced water retention and improved stability were observed for the electro…
A strategy for rapid synthesis of a chemopalette of fluorescent Ag nanoclusters based on efficient directors by only incorporating mutated bases of a C-rich ssDNA as template was proposed and used as a new fluorescence turn-on highly selective and sensitive detection method for cysteine without the interference of GSH…
Electropolishing is a process for the surface finishing of metals and alloys, achieving brilliant surface finish with very low surface roughness values. The most common electrolytes for the electropolishing of stainless steel are varying concentrations of phosphoric and sulphuric acid, and occasionally additives such…
We utilize high-conductivity Te nanowire arrays grown on flexible carbon fibre to fabricate a hybrid Te/Au/MnO2 core–shell nanostructure as a supercapacitor electrode. Electrochemical measurements show that a very high specific capacitance of 930 F g−1 (based on the mass of MnO2) is obtained for Te/Au/MnO2 core–shell…
Hollow silica nanospheres (HSNS) with ultrasmall size distribution (∼20 nm) and hierarchical hollow silica spheres (HHSS) with shells composed of self-assembled HSNS have been successfully synthesized through a novel single-micelle-template approach by using CTAB as the template and octane as a swelling agent. The eff…
High resolution transmission electron microscopic images of ZnO:Mn 2+ nanoparticles, for (a) 10% Mn doping, showing defect free regular atomic arrangement, and (b) 20% Mn doping, irregular lattice planes with significant defects. (c) Digital photograph of liquid suspension of ZnO:Mn 2+ nanocrystals under UV lamp. (d)…
Two novel cholesteryl derivatives of calix[4]arene with L- or D-phenylalanine residues in the linkers (1 and 2, respectively) were designed and synthesized. The gelation behaviors of the compounds in 30 organic solvents were tested. It was demonstrated that 1 gels n-butanol and n-pentanol at room temperature, but 2 ge…
Nano-/micro-scale α and β NaYF4:Er3+,Yb3+ crystals with ultra-efficient upconversion (UC) of near infrared (NIR)-to-visible (VIS) light were prepared by annealing following citrate-assisted hydrothermal synthesis at 200 °C. Excess fluoride ([F]/[Y + Er + Yb] molar ratio = 9) helped promote the formation of the hexagon…
In this work we compute the S1 potential energy curve responsible for stilbene cis-trans photoisomerisation employing the RASSCF approach, since the standard CASPT2//CASSCF protocol appears to be unsatisfactory in describing the stilbene S1 state. We find that RASSCF calculations, which are based on relatively few (bu…
A novel blue-emitting phosphor KSrScSi2O7:Eu2+, synthesized from a water-soluble propylene glycol modified silane (PGMS) silicon precursor by a solution approach, exhibits high internal quantum efficiency and remarkable thermal stability, which are attributed to the rigid structural network of the host and weak electr…
We report a facile approach to fabricating dendrimer-stabilized gold-silver alloy nanoparticles (Au-Ag alloy DSNPs) for targeted in vitro computed tomography (CT) imaging of cancer cells. In this study, folic acid (FA)-modified amine-terminated generation 5 poly(amidoamine) dendrimers (G5·NH2-FA) were used as stabiliz…
Benzyl alcohol was oxidized by an “in situ generated” hydrogen peroxy species, formed from a dilute mixture of hydrogen and oxygen, under mild conditions at a high rate over gold, palladium and gold–palladium nanoparticles supported on hierarchical titanium silicate materials. Hierarchical TS-1 supports were obtained…
The present study aimed at developing a strategy to improve the volumetric production of PHAs by Pseudomonas fluorescens S48 using waste frying oil (WFO) as the sole carbon source. For this purpose, several cultivations were set up to steadily improve nutrients supply to attain high cell density and high biopolymer pr…
A method for the synthesis of metal nanoparticle coatings for plasmonic solar cells which can meet large scale industrial demands is demonstrated. A UV pulsed laser is utilized to fabricate Au and Ag nanoparticles on the surface of polymer materials which form the substrates for plasmonic organic photovoltaic devices…