Molecular imprinting techniques have reached tremendous importance in the research of new artificial recognition systems. The investigation reports the preparation of Cu (II) ion selective polymer with high specificity and selectivity by molecular imprinting approach. For this 4-vinyl pyridine was chosen as the functional monomer and ethylene glycol dimethacrylate (EGDMA) as the crosslinking ag...

The enzymatic transesterification of several triand tetrasaccharides with vinyl laurate is described. The lipases from Candida antarctica B (Novozym 435) and Thermomyces lanuginosus (Lipozyme TL IM) and the alkaline protease from Bacillus licheniformis (subtilisin Carlsberg) have been used with each carbohydrate to obtain different regioisomers. By using the sugars in their amorphous form, comp...

An optical fibre sensor has been implemented towards pyridine vapors detection;to achieve this, a novel vapochromic material has been used, which, in solid state, suffers achange in colour from blue to pink-white in presence of pyridine vapours. This complex isadded to a solution of PVC (Poly Vinyl Chloride), TBP (Tributylphosphate) andtetrahydrofuran (THF), forming a plasticized matrix; by dip...

Floating gate memory devices were fabricated using well-ordered gold nanoparticle/block copolymer hybrid films as the charge trapping layers, SiO(2) as the dielectric layer, and poly(3-hexylthiophene) as the semiconductor layer. The charge trapping layer was prepared via self-assembly. The addition of Au nanoparticles that selectively hydrogen bond with pyridine in a poly(styrene-b-2-vinyl pyri...

The asymmetric unit of the title compound, C18H23N2O(+)·NO3 (-)·0.5H2O, contains two independent 4-{4-[eth-yl(2-hy-droxy-eth-yl)amino]-styr-yl}-1-methyl-pyridin-1-ium cations, two nitrate anions and one lattice water mol-ecule. In the cations, the pyridine ring is twisted with respect by 7.98 (12) and 18.42 (10)° to the benzene ring. In the crystal, the cations, the anions and the lattice water...

Synthesis of a double-charged cationic amphiphilic 1,4-dihydropyridine derivative with dodecyl ester groups at positions 3 and 5 the 1,4-DHP ring was performed starting from Hantzsch type cyclization acetoacetate, 2-naphthaldehyde ammonium acetate. Bromination this compound followed by nucleophilic substitution bromine (E)-4-(2-(naphthalen-2-yl)vinyl)pyridine gave desired 1,1?-{[3,5-bis(dodecyl...

In this study, it was aimed to produce an organic interface layered Schottky diode structure and frequency effect on capacitance-conductance-voltage measurements. context, phosphor doped n-type Si single crystal has been used as a semiconductor substrate with 1-20 Ω.cm resistivity, (100) surface oriention, 2 inches in diameter 350 μm thickness. The (E)-5,5-difluoro-1,3,7,9-tetramethyl-10-phenyl...