Croconic acid disodium salt (CADS), a renewable or recyclable organic compound, is investigated as an anode material in sodium ion battery for the first time. The pristine micro-sized CADS delivers a high capacity of 246.7 mAh g−1, but it suffers from fast capacity decay during charge/discharge ...

The comparable characteristics of the cordierite/steatite ceramic samples sintered from the mixtures containing vermiculites (Ver) from the deposits of Brazil (Ver-S) and Palabora (Ver-P) and the organovermiculites Ver-S/ODA (intercalated in the melt of the octadecylamine, ODA), Ver-P/HTMA (inte...

RésuméLa description et l’étude tracéologique de 14 objets en stéatite de tradition gravettienne, provenant de trois sites du Massif de l’Estérel (site de plein air des Gâchettes 1, grotte Rainaude, grotte de la Bouverie), sont proposées dans cet article. Des interprétations technologi...

This paper presents the results of petrographic and electron microprobe study of the steatite-tempered pottery of the Stroke Ornamented Ware culture from Silesia (SW Poland). The examination was performed with an emphasis on techno-functional aspects of ceramic production, nevertheless some prel...

In this work, humidity sensing properties of steatite ceramic containing with boron oxide was investigated. The properties of the sample were determined by using impedance measurements at a frequency of 10 kHz. These measurements have been performed according to various relative humidity values ...

Since Precontact times, First Nations' groups from northeastern North America used steatite to make many artifacts, such as ornaments and vessels. Only a few studies have been dedicated to this topic, such as on steatite vessels from northern Dorset sites and from Eastern North America. In ...

The research presented here evaluates the applicability of energy-dispersive X-ray fluorescence (EDXRF) for characterizing steatite. We present compositional data from an assemblage of 100 steatite beads and pipes deriving from 11 Northern Iroquoian sites in southern Ontario and New York State. ...

Steatite, as ceramic with composition predominantly resting on magnesium silicate, was produced from economic resources – talc, aluminosilicate clays, and either BaCO3 or feldspar as flux. Titanium dioxide was a doping agent. Four steatite mixtures were mechanically activated in a planetary bal...

Portal fibroblasts are mesenchyme-derived fibroblasts surrounding the bile ducts, and activated into portal myofibroblasts (pMF) during cholestatic liver injury. pMF express α-smooth muscle actin (α-SMA) and produce the fibrogenic extracellular matrix (ECM) collagen type I and fibronectin, pla...

N-butyl-N,N-diphenylamine (BDPA) and N-4-butylphenyl-N,N-diphenylamine (BTPA) were polymerized by oxidation polymerization using iron (III) chloride as oxidant. BDPA showed higher polymerizability. Poly(BDPA) and poly(BTPA) showed UV absorption maximum at 362 and 373 nm. Oxidation potential of p...

The preparation of a solubilised 2,2′ : 6′,2″-terpyridine ligand is described together with the characterisation of an unexpected intermediate. Homoleptic complexes of the solubilised ligand 4′-(4-tert-butylphenyl)-2,2′ : 6′,2″-terpyridine, 1, with cobalt(II), cobalt(III), ruthenium(II), ...

A mesogenic (nematic) Schiff's base, N-(4′′′-n-butylphenyl)-4-(4′-hexyloxy benzoate)salicylaldimine, Hbphbsal, (abbreviated as HL1), was synthesized and its structure studied by elemental analyses, mass, NMR and IR spectra. A series of mesogenic/non-mesogenic 3d metal complexes of the g...

Soluble 4-tert-butylphenyl substituted derivatives of 2,2′:6′,2″-terpyridine, 2,2′:6′,2″:6″,2″′-quaterpyridine, 2,2′:6′,2″:6″,2″′:6″′,2″″-quinquepyridine and 2,2′:6′,2″:6″,2″′:6″′,2″″:6″″,2″″′-sexipyridine have been prepared. The ligands and their metal complexe...

MGAT2 (monoacylglycerol acyltransferase 2) is expected to be an attractive target for the drug treatment of obesity, diabetes, and other disease. We describe our exploration and structure–activity relationship (SAR) study of 2,3-dihydro-1H-isoindole-5-sulfonamide derivatives. In this study, we ...

The title compound, first example of a stable diarylnitroxyl with vacant para-position, was best synthesized by CuCl-assisted coupling of o-tert-butylnitrosobenzene and p-tert-butylphenylboronic acid followed by N-xidation of the thus obtained unsymmetrical diarylamine. ESR investigation showed ...

Copper (II) and Cobalt (II) metal complexes (4a- and 4b-complexes) using Schiff base ligand 1-[(4-butylphenyl)imino]methyl naphthalen-2-ol (3) have been synthesized. The single crystals of Copper (II) and Cobalt (II) complex phosphors were grown and characterized by Fourier-Transform Infrared (F...

A study of the title systems was performed using theoretical calculations, dipole moments (experimental and calculated) and NMR spectroscopy. The results were discussed in the light of literature data on related systems. It was concluded that a multitude of conformations occur in a potential wel...

The molecular structure and conformational composition of trans-1,2-dimethylcyclopentane have been studied at nozzle temperatures of 298 K and 448 K by gas-phase electron diffraction. The molecule is found to be pseudorotating with a flat minimum at the diequatorial form. The enthalpy difference...

In this study adsorption potential of oxidation activated carbon (ox-AC) and graphene oxide (GO) was investigated. Cd(II) was bound to cationic complexes with 1,10-phenanthroline or 2,2-bipyridyl. The sorbents have been used for the dispersive solid-phase extraction of Cd(II) prior to its induct...

A concept based on a novel redox-biocompatible composite protein membrane fabrication, double enzyme membrane modification technique and antibody immobilization, was exploited to develop a highly sensitive amperometric enzyme immunosensor for detection of carcinoembryonic antigen (CEA). In this ...