In this work, the stable conformation and thermal isomerization of p-aminoazobenzene (AAB) were investigated by using ab initial MP2/6-31+G∗ and DFT-B3LYP/6-31+G∗ calculations. For comparison reason, corresponding results of azobenzene (AB) were also obtained by the same theoretical methods. Com...

The mechanism of electrochemical deposition of poly(p-aminoazobenzene) (PAAB) on a Au electrode from acetonitrile solutions containing pyridine was studied by cyclic voltammetry and potential-step experiments. Cyclic voltammograms indicate that the polymer deposits on the substrate only if the s...

p-Aminoazobenzene (p-AAZB), an organic nonlinear optical (NLO) crystal having good optical quality has been grown by slow evaporation solution technique using ethanol as a solvent. Solubility studies were performed at different temperatures. The structural characterization of the grown crystals ...

[N-substituted] p-aminoazobenzene derivatives (1), (2), (3), (4) and (5) were prepared and investigated as corrosion inhibitors for mild steel in 1 M H2SO4 solution by weight loss measurements. It has been observed that the corrosion rate decreases, inhibition efficiencies increase and surface c...

In this paper, we report the study of a novel p-aminoazobenzene based non-conjugated, benzoxazine polymer, poly([4-(6-tert-butyl-4H-benzo[e][1,3]oxazin-3-yl)phenyl]-phenyldiazene) (AZO-PBZ) synthesized using solvent free, thermally activated cationic ring opening polymerization. The thermal, pho...

Tri-ortho-cresyl phosphate (TOCP) has been widely used in industry and reported to induce delayed neurotoxicity in humans and animals. In addition, it is known to have a deleterious effect on the male reproductive system in animals, but the precise mechanism is yet to be elucidated. The present ...

Tri-ortho-cresyl phosphate (TOCP) can cause toxic neuropathy known as organophosphate-induced delayed neuropathy (OPIDN), which is pathologically characterized by the swollen axon containing aggregations of neurofilaments, microtubules, and multivesicular vesicles. Autophagy is a self-degradativ...

Major limitations of chalcones as clinical anticancer agents are water insolubility and poor bioavailability, which may be improved by a classic phosphate prodrug strategy that targets non-specific alkaline phosphatase (ALP) for releasing the parent drug in vivo. In this study, we found that BOC...

A direct microextraction method, employing dispersive micro-solid phase extraction (μ-SPE) of ortho-phosphate (o-PO43−) anions onto ferromagnetic nanoparticles (MNPs) is described in this work for the first time. The method exploits the complexation of phosphate ions on the surface of positivel...

Previous studies suggest that abnormal neurons death has been implicated in organophosphate-induced delayed neuropathy (OPIDN). However, the precise mechanism of neuronal death in OPIDN remains largely unknown. In this study, adult hens were treated with a dosage of 750 mg/kg tri-ortho-cresyl ph...

About 18% of fighter pilots complain of ill symptoms that begin during flight and persist for days. A possible source of toxicity is the air supplied through the on board oxygen generating system. The air passes through the jet engine before it is enriched for oxygen and breathed through an oxyg...

Aryl dialkyl phosphate, which is readily available from phenol, was a good substrate for the Pd(II) catalyzed aryl–aryl coupling reaction through ortho-C–H activation. Although a phosphate group is regarded as a poor coordinating group, highly regioselective ortho-arylation could be achieved b...

Autophagy is a highly conserved cellular self-degradative process that plays a housekeeping role in removing aggregated proteins and damaged organelles. Our recent work has found that tri-ortho-cresyl phosphate (TOCP), a neuropathic organophosphate (OP), decreased the level of beclin 1 (a key mo...

As a plasticizer widely used in society, tri-ortho-cresyl phosphate (TOCP) is reported to inhibit spermatogenesis and growth of spermatogonial stem cells. However, its effects on female reproductive system are virtually unknown. The present study investigated the effects of TOCP on ovarian folli...

Tri-ortho-cresyl phosphate (TOCP) is a typical organophosphorus compound that can cause organophosphate-induced delayed neuropathy (OPIDN), which is pathologically characterized by axonal degeneration. Nowadays, mitochondrial dysfunction is regarded as a potential mechanism contributing to OPIDN...

This paper describes the procedures of isolating strontium and yttrium from seawater that enable the determination of 89,90Sr. In one procedure, strontium is directly isolated from seawater on the column filled with Sr resin by binding of strontium to the resin from 3 M HNO3 in a seawater, and s...

In Finland the deposition of strontium-89 (90Sr) and strontium-90 (90Sr) has been monitored since the early 1960s. The measured cumulative 90Sr deposition in 1963–2005 is on average 1200 Bq m−2, of which 150 Bq m−2 originates from the Chernobyl accident. Adding to this the deposition in 1945–1...

Excess molar volumes of (oxolane + trichloromethane or tetrachloromethane or 1,2-dichloroethane or 1,1,2-trichloroethane or 1,1,2,2-tetrachloroethane or 1,1,1,2,2-pentachloroethane at 303.15 K are reported. All excess volumes, except that of (oxolane + dichloroethane), are negative and decrease ...

The influence of pH-induced structural modifications of myofibrillar proteins (MPs) on their interaction mechanisms with pyrazine compounds was investigated. At a lower pH (4.9, 5.5), MPs aggregated to larger particle sizes due to enhanced the protein–protein interactions. The binding with pyra...

Agricultural biogas facilities are usually combined with animal husbandry. Their siting near residential areas can lead to odour complaints by residents. The aim of this study was to identify relevant odour sources, to record odour impact, and to determine the main variables influencing odour im...