Humidity sensitive poly(2,5-dimethoxyaniline)/WO3 (PDMA/WO3) composites with different weight percents of WO3 have been prepared by a simple mechanical mixing method. These composites were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD) and scanning elect...
Stable films of poly-2,5-dimethoxyaniline were grown on 304 stainless steel by electrochemical polymerisation in an oxalic acid electrolyte. The conducting polymer was also formed electrochemically on mild steel, but the film was unstable and readily peeled off when cycled in a monomer-free elec...
Synthesis of poly(2,5-dimethoxyanilie) (PDMA) catalyzed by nano reengineered horseradish peroxidase (HRP) with dendritic macromolecules, was studied as a function of reaction media. UV–vis, gel permeation chromatography and conductivity measurements were used to explain how the reaction media c...
The solubility of 4-chloro-2,5-dimethoxynitrobenzene (CDMB) and 4-chloro-2,5-dimethoxyaniline (CDMA) in methanol, ethanol, xylene and toluene was measured over the temperatures range from (278 to 338) K by the dynamic method using a laser monitoring observation technique. The solubility in all s...
The adsorption behavior and stable geometries of ferrocene molecule on pristine, oxygen and hydroxyl functionalized graphene surfaces are investigated by using first principle density functional calculations based on the PBE-D2 method, which uses GGA-PBE functional with the incorporation of van ...
The success of applications such as redox flow battery (RFB) technologies is highly dependent on the development of new molecular strategies, and much work has focused on the chemistry of ferrocene compounds as RFB components. This report presents four “all-ferrocene” salts comprised of ferroc...
Bioanalytical relevance of glyoxal (Go) and methylglyoxal (MGo) arises from their role as biomarkers of glycation processes and oxidative stress. The third compound of interest in this work is diacetyl (DMGo), a component of different food products and alcoholic beverages and one of the small α...
The commercial Amberlite XAD-4 resin was post-crosslinked by two crosslinking reagents, α,α′-dichloro-p-xylene (DCX) and 4,4′-bis(chloromethyl)-1,1′-biphenyl (BCMBP) through the Friedel–Crafts reaction and two post-crosslinked resins named DCX and BCMBP modified resins were prepared in thi...
Wittig homologation of 2-(chloromethyl)-2H-chromen-2-ol derivatives 2a–t with (ethoxycarbonylmethylene)triphenylphosphorane provided the 2-oxoethylidene-2,3-dihydrobenzoxepine-4-carboxy-lates 3a–t with Z (cis) selectivity. Various basic catalysts were studied for the reaction of 2-(chloromethy...
Antihistamine preparations containing methapyrilene hydrochloride, pyrrobutamine phosphate, and cyclopentamine hydrochloride were assayed by introducing an aqueous sample solution into the appropriate automated system. Methapyrilene hydrochloride was determined by UV spectrophotometry. Pyrrobuta...
A new dicarboxylic acid receptor 1 having two pyridinc amide motifs built on a Troger's base spacer has been designed and synthesised. The binding studies are performed with a series of dicarboxylic acids and the cavity of receptor 1 was found to be selective for suberic acid.
Capillary housed laurylmethacrylate-co-ethylene dimethacrylate (LMA-co-EDMA) polymer monoliths were fabricated, functionalised with varying amounts of vinyl azlactone, followed by immobilisation of iminodiacetic acid (IDA), forming a range of acetyl-iminodiacetic acid (AIDA) functionalised monol...
In the present study, we investigated the effect and molecular mechanism of ethyl caffeate (EC), a natural phenolic compound isolated from Ligularia fischeri, on human ovarian cancer cell proliferation and progression. EC-mediated inhibition of cell proliferation in SKOV-3 cells was accompanied ...
The interaction of N-(2-hydroxyphenyl)acetamide with methyl(organyl)dichlorosilanes RMeSiCl2 (R = Me, Vinyl, Ph) leads to the formation of 5-membered silaheterocyclic benzoxazasiloles 1a-3a. According to data of NMR and FTIR spectra these compounds exist in equilibrium with 7-membered cyclic ben...
Most drugs of abuse increase dopamine and 3,4-dihydroxyphenylacetic acid (DOPAC) release in the shell of the nucleus accumbens. The effects of ascorbate, which is known to modulate dopamine neurotransmission, on the extracellular level of DOPAC in the nucleus accumbens of naive rats and of rats ...
It has been postulated that dihydroxyphenylacetic acid (DOPAC), a major dopamine metabolite, and nitric oxide (NO) induce mitochondrial dysfunction in a synergistic manner. We examined the combined effects of NO and DOPAC on PC-12 cells in terms of cell viability, nuclear morphology, mitochondri...
Early undernutrition causes long lasting alterations that affect the response to psychoactive drugs. Particularly, undernutrition during lactation affects the acute locomotor response to nicotine during adolescence, but the reward effect of continued exposure to nicotine remains unknown. The goa...
The molecular mechanisms inherent to cell death associated with Parkinson's disease are not clearly understood. Diverse pathways, sequence of events and models have been explored in several studies. Recently, we have proposed an integrative mechanism, encompassing the interaction of nitric ...
Several studies have shown that catecholamines can inhibit the fibrillation of α-synuclein (α-Syn), a small presynaptic protein whose aggregation is believed to be a critical step in the etiology of Parkinson's disease and several other neurodegenerative disorders. However, the mechanism ...
A new fluorescent receptor composed of two imidazoliums, two pyrenes and a boronic acid has been synthesized and studied for the recognition of 3,4-dihydroxyphenylacetic acid (DOPAC), which is the metabolite of dopamine. Dopamine, l-DOPA and catechol also induced fluorescence quenching effects, ...
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