Erbium-doped SiO2-TiO2 thin films were prepared by the sol-gel method, using erbium nitrate pentahydrate powder, tetraethyl-orthosilicate (TEOS), and titanium tetraisopropoxide (TTIP) as precursors. The Si/Ti ratios in the SiO2-TiO2 films agree with the TEOS/TTIP molar ratio in the sol-gel precu...

Two highly fluorinated Er3+ complexes with three 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate (fod) groups and either bipyridine (bipy) or bathophenantholine (bath) as the ancillary ligand emitting at the C-band (third communication window for fiber transmission) are presented. These...

Semiconductor metal oxides have gained enormous attention due to decomposition of organic pollutant from waste water. Among them TiO2 is one of the most promising photocatalyst with a wide range of applications. It has wide band gap of 3.2 eV which limits its activity to the UV range. Therefore ...

X-ray diffraction and semiempirical methods have been used to investigate the structures of novel erbium(III) [Er(od)3(N,N-donor)] complexes, where od = 2,4-octanedionate and N,N-donor = 2,2′-bipyridine (bipy), bathophenanthroline (bath) or 5-nitro-1,10-phenanthroline (5NO2phen). Structural cha...

A series of novel anthranilic diamides derivatives containing aryl-isoxazoline moiety were designed and synthesized as a part of our ongoing search for potential anticancer agents. Their structures were confirmed by 1H NMR, 13C NMR and ESI-MS analyses. The preliminary assays showed that some of ...

Structure–affinity relationship (SAR) and structure–kinetics relationship (SKR) studies were combined to investigate a series of biphenyl anthranilic acid agonists for the HCA2 receptor. In total, 27 compounds were synthesized and twelve of them showed higher affinity than nicotinic acid. Two ...

A novel voltammetric sensor based on molecularly imprinted poly(aniline-co-anthranilic acid) for determination of amlodipine (AML) was developed. The sensor was prepared by electrocopolymerization of aniline and anthranilic acid in the presence of AML molecules and perchloric acid onto a glassy ...

Somatostatin receptor subtype 5 (SSTR5) has emerged as a novel attractive drug target for type 2 diabetes mellitus. Starting from N-benzyl azetidine derivatives 1 and 2 as in-house hit compounds, we explored the introduction of a carboxyl group into the terminal benzene of 1 to enhance SSTR5 ant...

Measurements of the kinetics of interaction between a typical zinc dialkyl dithiophosphate and heated metal surfaces, coupled with an analysis of the surface product(s) formed, indicate that additives of this type owe their effectiveness to a dual mechanism. At temperatures between 200 and 600°...

A double-bind cross-over study was conducted on four healthy subjects, aged 19–29 years, in order to determine the relative bioavailability and other pharmacokinetics features of fluoride (F) after single oral administration in fasting conditions of 2 mg F as sodium F (NaF) or sodium monofluoro...

The composites formed by copolymer (N-methylpyrrole-co-pyrrole) and Ba0.9Nd0.1Cr0.5Fe11.5O19 ferrite were prepared by in-situ solution polymerization. The phase, morphology, thermal stability, electrical conductivity, electromagnetic properties, and reflection loss of the as-prepared samples wer...

Preparative scale synthesis of 14 new N2-modified mononucleotide 5′ mRNA cap analogues was achieved. The key step involved use of an SNAr reaction with protected 2-fluoro inosine and various primary and secondary amines. The derivatives were tested in a parasitic nematode, Ascaris suum, cell-fr...

The hydrolysis of nucleoside 5′-monophosphates to the corresponding nucleosides and inorganic phosphate is catalysed by 5′-nucleotidases, thereby contributing to the control of endogenous nucleotide turnover and affecting the fate of exogenously delivered nucleotide- and nucleoside-derived the...

Two erythro-isomers of 2,2′-dimethoxy-4-(3-hydroxy-1-propenyl)-4′-(1,2,3-trihydroxypropyl)diphenyl ether, (7′S, 8′S)-9 and (7′R, 8′R)-9, were synthesized in seven steps, in which an improved method for the synthesis of the key intermediate 3 was developed. The absolute configuration of the...

β-Pyrazol-1-yl-dl-alanine, an uncommon amino acid from plants of the Cucurbitaceae, was fed to mice. Although pyrazole is known to affect the liver enzymes UDP-glucose dehydrogenase, UDP-glucoronyl transferase and UDP-glucuronic acid pyrophosphatase, and also depresses their liver glycogen conc...

Implantation of trenbolone acetate (TBA) in conjunction with estradiol-17β (E2) increases growth, feed conversion efficiency, and carcass leanness in cattle. Our previous study in Brahman steers suggested that the neuropeptide hormone oxytocin (OXT) may be involved in increasing muscle growth a...

We investigated the transcriptomic signature of some anabolic steroids in cattle. Our main objective was to evaluate the effect of a combined trenbolone acetate (TBA, 200 mg) and estradiol-17β (E2, 40 mg) implant (Revalor-XS®, REV) on the transcriptome of muscle (target tissue for anabolic ster...

This study was conducted to assess the effects of a one time embryonic exposure to trenbolone acetate on reproductive development and function in Japanese quail (Coturnix japonica). Embryos were exposed to either 0.05, 0.5, 5, or 50 μg trenbolone or a sesame oil vehicle control at embryonic day...

The increasing size of concentrated animal feeding operations has led to a concomitant increase in the land-application of manure, which has spawned research on the concentrations and environmental risk assessment of natural and synthetic hormones in animal manures. 17β-Trenbolone acetate (TBA)...

Studies demonstrate that exposure to steroid hormones in receiving waters can adversely impact reproduction of aquatic organisms. In particular, exogenous steroid hormones widely used as growth promoters in animal agriculture are of high concern, yet no gas chromatography–tandem mass spectromet...