مرور Volume 1, Issue 3 بر اساس عنوان

در حال نمایش موارد 1 - 6 از 6

  • The effect of polar copolymers in protein absorption on contact lenses on 2-Hydroxyethyl methacrylate(HEMA) 

    Yari, Mohammad؛ Sharehjini, S.S؛ Moradi, Omid (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    For the purpose of increasing the permeability to oxygen and equilibrium water content in contact lenses, polar copolymers with nonionic monomers such as 2-hydroxyethle methacrylate(HEMA) Is used. By adding the polar ...

  • Modeling of the hydration shell of Adenine 

    Zare, K.؛ Karimi, N.؛ Savadi, R.l؛ Abedi, A.؛ Sevedsadiadi, M.A. (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    The molecular geometry of complex of adenine with 8 water molecules was calculated with Hartree-Fock (HF). The standard 6-31G(d) basis set has been employed. The existence of C-H…O Hydrogen bonds between the water molecules ...

  • A new method for Eosin preparation and examination of its absorption and emission spectra 

    Yazdanparast, F.؛ Rabbani, M. (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    Eosin is one of the original dyes of xanthenes derivatives. It is also one of the main derivatives of fluorescein and has brilliant fluorescence. Eosin disodium salt called "Eosin Y" is the most useful form of this compound. ...

  • Spectroscopic study on the interaction of three water-soluble porphyrins with calf thymus DNA 

    Aghaie, H.؛ Keshavarz, M.؛ Zare, K.؛ Bordbar, A.K.؛ Gharib, F. (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    Porophyrins and their metal derivatives are strong DNA binders with association constant of  to  . Some of these compounds have been used for the radiations sensitization therapy of cancer and are targeted to interact with ...

  • Thermodynamic study of Ion pairing in Aqueous solution of 〖BaF〗_2 by (_^19)F-NMR 

    Aghaie, H.؛ Aliabadi, A.؛ Sohrabi, B.؛ Aghaie, M.؛ Sohrabi, M. R. (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    The ion-pair association constant values, related to the reaction +  were determined by means of the NMR spectroscopy. The values of the thermodynamic functions of the ion pairing process were calculated on the basis of ...

  • Transesterification of trimethylphosphate catalyzed by sodium aloxides 

    Moosavi, Saved Mojtaba؛ Aghabevzi, Shokofe؛ S. Sadiadi, Mir Abdullah (Tehran, Islamic Azad University of Iran, Science and Research Branch, 2004-10-01)
    The transesterification process of trimethylphosphate with ethanol and isopropanol is examined. It is found that the reaction does not proceed in the absence of base even at temperature up to 100°C, whereas in the presence ...