The synthesis of highly fluorescent conjugated benzodifuran aryl–vinyl systems, containing four double bonds and at least four phenyl rings, is described. The ethyl groups of diethyl 2,6-dimethylbenzofuro[5,6-b]furan-3,7-dicarboxylate, obtained by the Michael type condensation of p-benzoquinone...

This work presents a new sensor for potassium determination based on interdigitated conductometric thin-film planar electrodes. It was fabricated by including valinomycin in a plasticized PVC membrane deposited on the sensitive area of the transducer. The potassium sensor presents a detection li...

Most of the plasticizers used during poly (vinyl chloride) processing are typically toxic petroleum-based phthalates. Furthermore, large amount of edible oils become waste all over the world, fortunately, waste cooking oils have the potential to be an economic alternative for synthesizing differ...

The micellization of the mono-salts of octyl, decyl, and dodecyl phosphates and of the di-salts of dodecyl phosphate have been studied in aqueous solutions by conductivity methods. The effects of temperature, salt concentration, counterion type, and chain length have been examined. The mono-salt...

A highly sensitive flow analysis manifold for rapid determination of dissolved reactive phosphate was developed which uses ethanol and UV light to reduce phosphomolybdic acid, instead of the reactive and short-lived chemical reductants typically employed in molybdenum blue chemistry. This reacti...

To date, a series of chiral selectors have been utilized successfully in capillary electrophoresis (CE). Among these various chiral selectors, macrocyclic antibiotics have been demonstrated to represent powerful enantioselectivity towards many chiral compounds. Differing from macrocyclic antibio...

Designing biocompatible superparamagnetic mesoporous nanoparticles for advanced healthcare applications has received much attention. In this research, we have synthesized intrinsic mesoporous superparamagnetic hydroxyapatite (HAp) nanoparticles using bio-waste of black Chlamys varia seashell as ...

The effects of five phosphate salts (PS) on the pasting properties of flour, mixing properties of dough and qualities of cooked noodles were investigated. Rapid Visco Analysis showed that all types of PS increased the peak and final viscosities of wheat flour. Trisodium phosphate (TSP) significa...

The synthesis of mesostructured calcium phosphate micron-sized rods and nanoparticles using mono-n-dodecyl phosphate ((C12H25O)P(O)(OH)2, MDP) and cetyltrimethylammonium bromide (C19H42BrN, CTAB), is described. The effect of concentration, molar ratio, and ethanol as co-solvent on the shape, siz...

Poly(α-amino acid)s, containing amino acid repeat units, are remarkable biomaterials with similar structures to protein, which are mainly synthesized by solid phase peptide synthesis, ring opening polymerization of N-carboxyanhydrides, polymerization of activated urethane derivatives of α-amin...

The ab initio molecular orbital method (at the 6-31G∗∗ level of theory) has been used to study the decomposition of carbamic acid, thiocarbamic O-acid, thiocarbamic S-acid, dithiocarbamic acid and silacarbamic acid. The total internal energy of the molecules investigated is calculated as a sum o...

Representative samples of several types of naturally occurring amides from south and southeast Asian Glycosmis species were synthesized for proof of structures and for bioactivity testing. With one exception (senecioic acid) all these amides were characterized by sulfur containing acid component...

Nodal segments of Hebe Comm. ex Juss. ‘Oratia Beauty’ were treated in vitro with colchicine (500 and 1000 μM) and oryzalin (11.5, 58 and 289 μM) to induce polyploid plants. Survival rates from treatments were greater than 73%. All explants were rooted, acclimatized and the morphological trai...

We conducted studies to determine if the xenoestrogens Surflan™ and its active ingredient oryzalin, affect indices of reproductive fitness in medaka (Oryzias latipes). Oryzalin (0.5, 0.25 mg/l) or Surflan™ (2.0 μl/l) and oryzalin (0.5 mg/l) significantly increased the mean number of non-fertili...

Field studies monitoring herbicide pollution in the vineyards of Burgundy (France) have revealed that drinking water reservoirs are contaminated with several pre-emergence herbicides. An assessment of the leaching of two such herbicides, diuron and oryzalin, was therefore performed using lysimet...

Oryzalin [3,5-dinitro-N,N-di(n-propyl)benzensulfanilamide] is a widely used sulfonamide herbicide that selectively inhibits microtubule formation in algae and higher plants. Oryzalin has also been found to be an inhibitor of intracellular free Ca2+ signalling in mammalian cells and to have antit...

Oryzalin is a dinitroaniline drug that has attracted recent interest for the treatment of leishmaniasis. Its use as an antiparasitic therapeutic agent is limited by the low water solubility associated with an in vivo rapid clearance, leading to the administration of larger and possibly toxic dos...

A protocol for in vitro polyploid induction using oryzalin was developed for Dendrobium, Epidendrum, Odontioda, and Phalaenopsis orchids (Orchidaceae). Protocorms and protocorm-like bodies (PLBs) in liquid nutrient media were subjected to oryzalin treatments of 14.4, 28.9, and 57.7 μM (w/v) con...

The synthesis and anticonvulsant activity of novel heterocycles N-derivative-1,2,3-oxathiazolidine-4-one-2,2-dioxides, bioisosteres of trimethadione (TMD, oxazolidine-2,4-dione) and phenytoin (PHE), are described. TMD is an anticonvulsant drug widely used against absences seizures in the early 8...

26-Hydroxycholestan-22-one derivatives with oxygenated functions in the rings A and/or B were successfully synthesized from diosgenin. After the modifications of rings A and B, the spiroketal side chain was selectively opened through a Lewis acid mediated acetolysis to afford the cholestane deri...