An extractor has been developed for microporous membrane liquid–liquid extraction (MMLLE) of lipophilic xenobiotics at trace levels in biological fluids. This new construction allows the sample phase to be stirred, while the organic phase is pumped. The extractor was evaluated using human blood...

The synergistic effect of mixed Cyanex 572 and n-octyl diphenyl phosphate for Th(IV) extraction from nitric acid solution has been investigated in this paper. The effect of acidity together with mole fraction of extractant on the synergistic effect was studied. Based on the obtained results, the...

We are continuing our concerted effort to optimize our first lead entry antagonist, NBD-11021, which targets the Phe43 cavity of the HIV-1 envelope glycoprotein gp120, to improve antiviral potency and ADMET properties. In this report, we present a structure-based approach that helped us to gener...

Triphenyl phosphate (TPHP) has been detected with increasing frequency in environmental samples, which has aroused great attention regarding its potential adverse effects. In this study, biodegradation of TPHP by Brevibacillus brevis was investigated. The results revealed that the highest degrad...

The widespread application of organophosphorous flame retardants (OPFRs) has led to considerable human exposure, with major concerns regarding their health risks. Herein, we investigate the effects of triphenyl phosphate (TPP), one of the most widely used OPFRs, and one of its main metabolite di...

The efficacies of ferrous ion-activated hydrogen peroxide (Fe2+/H2O2, Fenton) and persulfate (Fe2+/S2O82−, Fe2+/PS) processes for degrading triphenyl phosphate (TPhP) in aqueous solutions were systemically investigated and compared. Both Fenton and Fe2+/PS processes can effectively degrade TPhP ...

Triphenyl phosphate (TPhP) is an organophosphate flame retardant that is frequently detected in the environments. TPhP exposure is known to cause developmental toxicity. However, the underlying molecular mechanisms remain underestimated. In the present study, zebrafish embryos were acutely expos...

A dicyano-methylene-4H-pyran (DCM)-based fluorescent probe DCPOP was designed for detecting lysozyme in urine sample. DCPOP showed obvious NIR emission (> 650 nm) avoiding the background fluorescence of urine (450 ˜ 600 nm). Compared to its mimic (DCPO), DCPOP has a big end-capped triphenyl phos...

Previous in vitro studies have implied that triphenyl phosphate (TPHP) may act as an obesogen. However, its specific contributions to the progression of obesity and related metabolic diseases are still unclear in vivo in mice. In this study, we evaluated the effects of in utero and lactational e...

The aryl organophosphate flame retardant triphenyl phosphate (TPhP) has been frequently detected in environment and biota, and the potential risks of TPhP to aquatic organisms have also been demonstrated. The degradation of TPhP by CoFe2O4 activated peroxymonosulfate (PMS) was studied in this wo...

Triphenyl phosphate (TPhP), a typical organophosphate ester, is frequently detected in the environment and biota samples. It has been implicated as a neurotoxin as its structure is similar to neurotoxic organophosphate pesticides. The purpose of the present study was to investigate its potential...

Phosphorus flame retardants can provide polymers with flame retardancy, but they often compromise the polymers’ mechanical performance due to plasticization. This problem is addressed in this study by filling and sealing triphenyl phosphate into natural microtubules of ∼100 µm in length, 10–...

Triphenyl phosphate (TPhP) has been shown to cause developmental neurotoxicty. Considering the visual system is a sensitive target, in the present study, we investigated the potential toxicity of TPhP on the visual development and function in zebrafish larvae. Embryos were exposed to 0, 0.1, 1, ...

An effective and selective procedure for the extraction of ambenonium chloride (AMBC) from serum using a weak cation-exchange extraction cartridge has been developed. The solid-phase extraction procedure permitted the extraction of AMBC from serum without adhesion to materials such as the contai...

Ambenonium chloride was administered orally in a dosage of 6 mg/kg/day to rats for 14–360 days.Motor end-plate fine structure and junctional AChR were quantitatively analyzed in red (soleus) and white (EDL) muscle fibers. In treated animals, degeneration and simplification of postsynaptic folds...

Ambenonium (1), an old AChE inhibitor, is endowed with an outstanding affinity and a peculiar mechanism of action that, taken together, make it a very promising pharmacological tool for the treatment of Alzheimer's disease (AD). Unfortunately, the bisquaternary structure of 1 prevents its p...

The light and electron histochemical distribution of cerebral acetylcholinesterase activity, protected in vivo by intraventricular administration of the highly specific, lipid-insoluble, reversible acetylcholinesterase-inhibitor ambenonium chloride was examined in rabbits by the enzyme protectio...

The reaction of phosphaalkene 1 with ozone, sulfur and selenium yields the phosphoranes 2, 3 and 4. The methylene halogene substituted phosphaalkene 5 is formed with bromine. The bipyramidal iron carbonyl complexes 8 and 9 are obtained by reaction of 1 and 7 with Fe2 (CO)9.

Highly symmetrical complexes MCl[P(C7H7)3] (M = Rh (3a), Ir (3b); point symmetry C3v) have been synthesized which contain tri(1-cyclohepta-2,4,6-trienyl)phosphane (1) as a tetradentate tripod ligand. According to the X-ray structure analysis of 3a, the metal occupies the center of a trigonal bip...

Three optically active phosphanes ([(S)-2-methylbutyl]3−nP[phenyl]n(n = 0, 1, 2), were tested as ligands in rhodium(I) complexes to form catalysts for the enantioselective dimerisation of (R)- and (S)-oct-1-yn-3-ol. The catalytic reaction provides enantioselectivity for this type of CC bond fo...