New two nano- sized Schiff base complexes [M(L)], where L= 2, 2'-((1E, 1E')-(1, 2 phenylen bis (azanylylidene)) bis (methanylylidene)) bis (4-bromo phenolato) and M=Cu or Zn, (a, b complexes) were synthesized by ultrasonic irradiation. These complexes were characterized by elemental analysis, molar conductivity, FT-IR, fluorescence emission, 1H NMR, field emission scanning electron spectroscopy...

In the context of conjugated polymers, especially those of the poly (phenylenevinylene) (PPV) family, which are promising candidates as emission material in light emitting devices such as LEDs, field effect transistors and photovoltaic devices, we have, in the present study, prepared MEH-PPV [Poly [2- methoxy-5-(2’-ethyl-hexyloxy)-1,4-phenylen-evinylene] of low molecular weight and low polydisp...

The title compound, Ni(NCS)2(2,5-diMepy)2, crystallizes in monoclinic system: space group P2Jc, two molecules per unit cell of а = 8.785(3), £=5.279(3), с = 19.603(20) x 10" m, and /3 = 93.28(5)° dimensions. The crystal structure was solved using the heavy-atom method and refined by the method of full matrix least squares leading to the final R value of 0.062. The central atom of the molecular ...

High affinity heparin obtained by chromatography of clinical grade heparin on antithrombin 111-Sepharose was covalently coupled to antithrombin III using a three-step procedure: 1) introduction of free amino groups in the heparin molecule; 2) reaction of these amino groups with the bifunctional reagent tolylene2,4-diisothiocyanate; and 3) reaction of the remaining isothiocyanate group with amin...

The activity of taste cells maintained in the intact hamster tongue was monitored in response to acid stimulation by recording action currents from taste receptor cells with an extracellular "macro" patch pipette: a glass pipette was pressed over the taste pore of fungiform papillae and perfused with citric acid, hydrochloric acid, or NaCl. Because this technique restricted stimulus application...

Phosphoinositide signaling, in particular, phosphoinositide 3-kinase (PI3K) signaling, has been implicated in mediating inhibitory odorant input to mammalian olfactory receptor neurons (ORNs). To better understand this phenomenon we investigated PI3K-dependent inhibition between single odorant pairs. The concentration-dependent inhibition of the response of native rat ORNs to octanol by citral ...