Materials Literature
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p-t-Butylcalix[4]arene functionalised at the lower rim with two tetrazole moieties is found to be a useful receptor for lanthanoid cations. The luminescence of the resulting complexes can be controlled by addition of base, with emission achieved in the visible and infrared regions.
We fabricate mesoporous silica/silicone composites in a simple way and systematically examine their thermal stability, swelling characteristic, mechanical strength, and transparency. Simple calculations show that more than 90 vol% of mesopores are filled with silicone rubbers. Compared to non-porous silica/silicone co…
In this paper, one kind of organic electrolyte based on tetramethylthiourea is employed for quantum dot sensitized solar cells (QDSCs). By reducing the impedance between the electrolyte and the counter electrode, the fill factor of such organic electrolyte based QDSCs is significantly improved. It is possible to subst…
We describe the reversible formation of stimuli-responsive vesicle gels from polymerised dynamic covalent surfactants, by simple mixing of soluble surfactant precursors in water under ambient conditions.
Polystyrene-capped barium titanate (BaTiO3) nanoparticles with sizes of 11 nm and 27 nm were prepared using amphiphilic star-like diblock copolymer templates. The crystal structure evolution of these nanoparticles over a wide temperature range (10–428 K) was investigated by powder X-ray diffraction. The Rietveld refin…
This study examines the potential hazard of an individual nanomaterial on the Cu biotoxicity to aquatic organisms. Daphnia magna in the absence or presence of nano‐TiO 2 was exposed to Cu. Maintaining nano‐TiO 2 at a safe concentration cannot eliminate its potential hazard. The biomarkers superoxide dismutase, catalas…
Strong acidic ionic liquids functionalized, ordered and stable mesoporous phenol–formaldehyde resins (OMR-ILs) monoliths have been successfully synthesized from the treatment of ordered mesoporous resins (OMR-[HMTA]) using 1,3-propanesultone, followed by ion exchanged using various strong acids. The OMR-[HMTA] samples…
The use of heterogeneous catalytic systems for the development of low environmental impact processes has led to an enlargement of studies in this field, especially in order to optimize the selectivity of the reactions. This contribution aims to provide an overview of the role of the supporting materials in determining…
Capsule-like NiO nanoparticles were prepared by heat-treatment of the cathodically electrodeposited nickel hydroxide at 300°C for three hours. The hydroxide precursor was deposited galvanostatically onto the stainless steel substrate from aqueous Ni(NO 3 ) 2 solution (0.01 M). Morphological, structural and chemical ch…
Nanocrystalline Cu-doped ZnO particles were synthesized by the co-precipitation method. The composition, structural, optical and magnetic characterizations were performed by energy dispersive X-Ray spectroscopy, X-Ray diffraction, UV-Visible spectrometer, and vibrating sample magnetometer. The results confirmed that n…
Relativistic effects in triphenylbismuth have been investigated using a combined experimental and theoretical approach. The influence of these effects on the molecular structure (determined by gas electron diffraction) has been evaluated by means of quantum chemical calculations which consider scalar-relativistic and…
FeMoO4 hollow microspheres were prepared via a template-free hydrothermal method using FeCl2 and Na2MoO4 as the starting reaction reagents and distilled water as the solvent. The crystal structure, morphology and UV-vis reflection property of the as-synthesized products are characterized by X-ray diffraction, scanning…
A titanate conversion coating was made on AZ31 magnesium alloys in a titanium chloride and hexafluorosilicic acid solution. The titanate conversion coating formation proceeded via the formation of a porous magnesium hydroxide and fluoride layer. Compact silicon hydroxide and titanium hydroxide were then formed locally…
Box-like tetrakis(metalloporphyrin) supramolecular assemblies possessing Zn and Al metal sites can catalyze the methanolysis of phosphate triesters with a high rate enhancement, up to 430 times faster than the uncatalyzed reaction. Mechanistic studies suggest that the observed rate enhancement can be attributed to a h…
An extremely simple and sensitive approach using solvent-induced hot spot switch on silver nanorod enhanced Raman spectroscopy has been found and experimentally demonstrated, which can be used for detection and identification analyte molecules.
A new type of salt/pH dual-responsive micelles based on supramolecular amphiphilic brush copolymers, poly(2-hydroxyethyl metharylate)-g-(poly(ε-caprolactone)-adenine:uracil-poly(ethylene glycol)) (PHEMA-g-(PCL-A:U-PEG)) was developed for the anticancer drug delivery owing to the fact that the tumor tissues show low pH…
A novel method for determining the carbonate ion contents in layered double hydroxides (LDHs) was demonstrated by FTIR spectrometry. Deconvolution using a curve-fitting technique was performed on the FTIR spectra of LDHs containing both carbonate and carboxylate ions in the interlayer. The contents of carbonate ion ca…
meso-Anthriporphyrin is a carbaporphyrinoid with an anthracene ring embedded in the tripyrrolic framework. The coordination of palladium(II) results in a specific intramacrocyclic metal(II)-η(2)-CC interaction which facilitates the cleavage to palladium(II) acyclic oligopyrrole with the appended anthracene moiety.
Solvothermally synthesized CePO(4):Tb,Gd hollow nanospheres were fabricated as a peroxidase mimic and bimodal magnetic-fluorescent imaging agent, which show potential applications in biocatalysis and bioimaging.
The trifluorido complex mer-[CrF(3)(py)(3)] (py = pyridine) reacts with 1 equiv. of [Ln(hfac)(3)(H(2)O)(2)] and depending on the solvent forms the tetranuclear clusters [Cr(2)Ln(2)(μ-F)(4)(μ-OH)(2)(py)(4)(hfac)(6)], 1Ln, and [Cr(2)Ln(2)(μ-F)(4)F(2)(py)(6)(hfac)(6)], 2Ln, in acetonitrile and 1,2-dichloroethane, respect…