Samples of polycrystalline calcite were impregnated with solutions of malonic acid of three concentrations (5×10−2, 5×10−3, and 5×10−4 M) and different pH values (6.00, 7.00, and 8.00). The impregnation was carried out at room temperature to evaluate the adsorption of malonate ion in the calc...

Lanthanum malonate crystals were grown by single tube ionic diffusion through silica gel. The crystallinity of the grown crystals was analyzed by powder X-ray diffraction studies. Fourier transform infrared spectroscopy (FTIR) and fourier transform (FT) Raman studies confirmed the presence of fu...

Phosphodiesterase 5 (PDE5) inhibitors have recently been reported to exert beneficial effects against ischemia–reperfusion injury in several organs but their neuroprotective effects in brain stroke models are scarce. The present study was undertaken to assess the effects of sildenafil against c...

Quantum mechanical SCF calculations were performed on magnesium and calcium complexes of malonate and malonate/formate coordination. The calcium malonate structure is in substantial agreement with recent X-ray results on α-ethylmalonate. The magnesium complexes are generally more tightly bound ...

The solubility of gibbsite was measured at 35 and 80°C, and the solubility of portlandite was measured at 25, 35, and 80°C, each as a function of pH and malonate concentration. The gibbsite solubility data can be satisfactorily modelled using only one aqueous Al-malonate species. The data rule...

A kinetic and microscopic study has been undertaken of the thermal decomposition of calcium malonate. Reaction in the temperature range 612–653 K proceeds without any evidence of detectable melting. From analytical measurements the stoichiometry of the overall reaction was found to be: CH2 (COO...

The ESR study of Cu2+ doped calcium malonate dihydrate has been done at room temperature. Four magnetically in-equivalent sites for Cu2+ have been observed. The spin-Hamiltonian parameters evaluated with the fitting of spectra to rhombic symmetry crystalline field are for Cu2+ site (I): gx = 2.0...

The infrared spectra of calcium malonate dihydrate in the polycrystalline state, both normal and with different degrees of deuteration, were obtained at low temperatures in order to obtain information about the crystalline environment of the hydration water molecules. The study showed that both ...

Linear unsaturated oligo-anhydrides containing terminal acylchloride groups have been synthesized by polycondensation of fumaric or sebacic acid with either fumaryl chloride or sebacoyl chloride. Reaction of these oligo-anhydrides with poly(ethylene glycol) produce di- and tri-block copolymers. ...

The present study reports a high-throughput screening method for the salt formation of amine-containing active pharmaceutical ingredients (APIs) based on fluorescence measurements. A free form amine API was alkynylated by a solid–vapor reaction using propargyl bromide, and a fluorescent compoun...

High molar mass aliphatic poly(ester amide)s were prepared from sebacic acid and aminoalcohols of different chain length by melt polycondensation and chain extension reactions. Low molecular weight aliphatic poly(ester amide)s were synthesized by melt polycondensation starting from sebacic acid ...

A novel submerged direct current (DC) thermal plasma torch operating with a mixture of carbon dioxide and methane has been compared with an oxygen DC submerged thermal plasma torch for treatment of a basic solution containing organic acid. Sebacic acid, a long-chain organic contaminant in Bayer ...

Wastewater containing high concentrations of phenol and sodium sulfate is generated in sebacic acid (SA) industry. Castor oil acid, a raw material for producing SA, can be used to extract phenol from wastewater in order to reduce the amount of phenol used in the process and discharge of phenol. ...

Mucoadhesive membranes were proposed in this study as drug delivery system for betamethasone-17-valerate (BMV) in the treatment of recurrent aphthous stomatitis (RAS). The membranes were obtained by using the polymers chitosan (CHI) in both presence and absence of polyvinilpyrrolidone (PVP), fol...

The molecular targets of best known neurotoxic effects associated to acute exposure to organophosphorus compounds (OPs) are serine esterases located in the nervous system, although there are other less known neurotoxic adverse effects associated with chronic exposure to OPs whose toxicity target...

OPs are a large diverse class of chemicals used for several purposes (pesticides, warfare agents, flame retardants, etc.). They can cause several neurotoxic disorders: acute cholinergic toxicity, organophosphorus-induced delayed neuropathy, long-term neurobehavioral and neuropsychological sympto...

Some effects of organophosphorus compounds (OPs) esters cannot be explained by action on currently recognized targets acetylcholinesterase or neuropathy target esterase (NTE). In previous studies, in membrane chicken brain fractions, four components (EPα, EPβ, EPγ and EPδ) of phenyl valerate...

A novel stability-indicating reversed phase high performance liquid chromatographic (RP-HPLC) method for the simultaneous assay of betamethasone-17-valerate, fusidic acid and potassium sorbate as well as methyl- and propylparaben in a topical cream preparation has been developed. A 100 mm × 3.0...

In this study, a cation-exchange resin (CEX) of the K+-form, i.e., an enhancer resin, is used as a postcolumn conductimetric enhancer in the ion-exclusion chromatography of aliphatic carboxylic acids. The enhancer resin is filled in the switching valve of an ion chromatograph; this valve is usua...

This review paper deals mainly with acid-base, oxidation catalytic reactions, but also more general catalytic properties of metal oxides and their recent developments in the field of heterogeneous catalysis, a field largely covered by Prof. Guido Busca, during his scientific career. It includes ...