4-[(2-Amino-4-phenylazo)-methyl]-cyclo hexane carboxylic acid, a new Azo (LH2) ligand, was synthesized by reaction of the diazonium salt trans-4-(amino-methyl) cyclo acid with 3-amino phenol. The azo ligand characterized micro elemental analysis (C.H.N.O.) and TGA as well spectroscopic techniques (UV-Vis, FTIR, 1H-NMR, LC-Mass). Atomic absorption, analysis, infrared, LC-Mass, TGA, UV-Vis spectr...

background: bacterial superantigen staphylococcal enterotoxins (ses), has stimulated polyclonal t cells irrespective of their antigen specificity, resulted a massive release of cytokines, and suggested that they could be assigned as a candidate of new antitumor agents. recent attempts have done to specifically target superantigens towards tumors, subsequently monoclonal antibodies and tumor-rel...

Water oxidation to dioxygen is one of the key reactions that need be mastered for design practical devices based on water splitting with sunlight. In this context, catalysts first-row transition metal complexes are highly desirable due their low cost and synthetic versatility tunability through rational ligand design. A new family dianionic bpy-amidate ligands general formula H2LNn− (LN [2,2′-b...

Structure-based computational methods have been widely used in exploring protein-ligand interactions, including predicting the binding ligands of a given protein based on their structural complementarity. Compared to other protein and ligand representations, the advantages of a surface representation include reduced sensitivity to subtle changes in the pocket and ligand conformation and fast se...

A novel polyfunctional dipodal ligand, L = N,N'-bis[2-[(2-hydroxy-1-naphthyl)methyleneamino]ethyl]propanediamide (DOTA2HNAP) was developed and characterized through elemental and spectral analyses. The complexation behavior of the ligand was investigated with Co2+, Cu2+, and Zn2+ metal ions by potentiometric and spectrophotometric methods in H2O-D...

Siilver tetrafluoroborate complex of 5.11.17.23-tetra-tert-butyl-25-26,27,28-tetrakis (diphenylphosphinoylmethoxy)calyx[4]arene (L) has been synthesized by reaction of silver tetrafluoroborate and L in dichloromethane at room temperature. The complex formed has a 1:1 metall/ligand ratio. 1H and 31P NMR data support an encapsulated structure of the complex in which silv...

background:  new discoveries about the pathophysiology changed the concept that all forms of osteoarthritis are alike; this lead to the delineation of different phenotypes such as age, trauma or obese related forms. we aim to compare soluble mediator profiles in primary knee and posttraumatic wrist osteoarthritis. based on the general faster progression rate of wrist osteoarthritis, we hypothes...

The EphA2 receptor and its ephrin-A1 ligand form a key cell communication system, which has been found overexpressed in many cancer types and involved in tumor growth. Recent medicinal chemistry efforts have identified bile acid derivatives as low micromolar binders of the EphA2 receptor. However, these compounds suffer from poor physicochemical properties, hampering their use in vivo. The iden...

The Ni(II) and Zn(II) complexes with phenylpyridylformamidine (PhPyF) ligand, [Ni(PhPyF)Cl2] and [Zn(PhPyF)Cl2], have been prepared and investigated using different chemical techniques such as elemental analysis, molar conductance, FT-IR, UV-vis spectra and magnetic moment. The obtained chemical analysis data showed the formation of 1:1 (metal: ligand) ratio. The square planar and tetrahedral g...