'Zn ii' presentation slideshows

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Hydrolytic enzymes

Hydrolytic enzymes. Zn(II) containing enzymes. Enzymatic catalysis of hydrolysis. Hydrolytic enzymes. Characteristics of the zinc(II) ion: redoxi inert, strong Lewis acid, forms strong coordinative bonds,

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PROF A V N SWAMY, JNTUA College of Engg Anantapur-515002.A.P. India

Entrapment of fungus Rhizomucor tauricus, removal of Zn (II) from aqueous solution and spectroscopic characterization. PROF A V N SWAMY, JNTUA College of Engg Anantapur-515002.A.P. India.

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Synthesis, characterization and biological studies of Co(II), Ni(II), Cu(II) and Zn(II) complexes of Schiff bases derive

Co(II), Ni(II), Cu(II) and Zn(II) complexes have been synthesized by the Schiff bases derived from 3-formyl-2-mercaptoquinoline with 4-nitro-ortho-phenylinediamine. The synthesized Schiff bases and chelates were characterized by elemental analysis, molar conductance, magnetic susceptibilities, UV-Fluorescence, IR, 1H-NMR, Fabmass, ESR and thermal studies. The results indicate that, the ligand acts as a octahedral geometry. The ligands and their metal complexes have been screened in vitro for antibacterial and antifungal studies. The results showed that the biological activity of the ligands get increased on complexation. The Cu(II) and Ni(II) complexes are found to be potent in DNA cleavage studies.

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Synthesis, characterization and biological studies of Co(II), Ni(II), Cu(II) and Zn(II) complexes of Schiff bases derive

Co(II), Ni(II), Cu(II) and Zn(II) complexes have been synthesized by the Schiff bases derived from 3-formyl-2-mercaptoquinoline with 4-nitro-ortho-phenylinediamine. The synthesized Schiff bases and chelates were characterized by elemental analysis, molar conductance, magnetic susceptibilities, UV-Fluorescence, IR, 1H-NMR, Fabmass, ESR and thermal studies. The results indicate that, the ligand acts as a octahedral geometry. The ligands and their metal complexes have been screened in vitro for antibacterial and antifungal studies. The results showed that the biological activity of the ligands get increased on complexation. The Cu(II) and Ni(II) complexes are found to be potent in DNA cleavage studies.

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Potentiometric Studies of Ternary Complexes of Zinc with Vitamins and Medicinally important drugs

The proton ligand stability constants and stability constants of simple and mixed ligand complexes of zinc with pyridoxine, nicotinic acid, tetracycline, gentamycin, benzyl penicillin, ampicillin, streptomycin and ranitidine have been studied potentiometrically at 25±0.5°C and µ=0.1M(KNO3) in aqueous medium. Zinc forms 1:1 and 1:2 complexes with all the chelating agents except for nicotinic acid-ranitidine, nicotinic acid-ampicillin and nicotinic acid-gentamycin 1:2 complex species does not exist in the solution. The mixed ligand chelates are shown to have formed in simultaneous equilibria. The higher values of stability constants of mixed ligand chelates than the sum of individual log stability constants of the first and second ligand are discussed.

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Opposite effects of two zinc(II) dithiocarbamates on NF- k B pathway

Opposite effects of two zinc(II) dithiocarbamates on NF- k B pathway Boris Cvek , Zden e k Dvo rak , Jan Taraba, Luk as M u ller, Radim Vrzal, and Jitka Ulrichov a Department of Medical Chemistry and Biochemistry, Faculty of Medicine and Dentistry, UP Olomouc (BC, ZD, RV, JU)

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