The removal of heavy metal ions from wastewater by ion exchange resins ( zeolite and purolite C105), was investigated. adsorption process, which is pH dependent, shows maximum at 6 7 for C105 initial concentrations 50-250 mg/l, with resin dose 0.25-3 g. capacity found to be 9.74, 9.23 9.71 mg/g Cu2+, Pb2+, Ni2+ on respectively, while the 9.64 ,8.73 9.39 respectively. 97-98% Cu2+ 92- 93% Pb2+ ze...

Three-dimensional (3D) urchin-like MnO2@poly (sodium 4-styrene sulfonate) (PSS)/poly (diallyl dimethylammonium chloride) (PDDA)/PSS particles were prepared via the layer-by-layer (LBL) assembly of polyelectrolytes for extraction Zn2+ from alkaline media. The adsorption performance on MnO2, MnO2@PSS/PDDA/PSS, and MnO2@(PSS/PDDA)3/PSS was investigated in batch experiments. MnO2@PSS/PDDA/PSS has b...

as axon guidance cues. Both plexin B1 and plexin B2 are expressed during mouse kidney development. Inbred plexin B2 knockout (PB2 KO) mice die prenatally with defects in olfactory bulb development, neuronal proliferation and neural tube closure (exencephaly). We report here that these PB2 KO mice have defects also in kidney morphogenesis. In PB2 / embryos the kidneys are smaller and the number ...

Ion channels are responsible for control of cell function in excitable tissues such as heart and brain and also in organs and tissues traditionally thought to be non- excitable including liver and epithelium. In the present research, the effect of lead (Pb2+) on Ca2+ -dependent action potential and currents was studied in F77 neuronal soma membrane of Helix aspersa. For this purpose, action pot...

Divalent cations are involved in the function of bacteriorhodopsin (bR) as a light-driven proton pump. If cations are removed from purple membranes they become blue. Divalent cations such as Ca2+ or Pb2+ or trivalent ions, can be stoichiometrically titrated back on to these deionized membranes. The color transitions as a function of ion concentration for Ca2+ or Pb2+ are precisely comparable an...

as axon guidance cues. Both plexin B1 and plexin B2 are expressed during mouse kidney development. Inbred plexin B2 knockout (PB2 KO) mice die prenatally with defects in olfactory bulb development, neuronal proliferation and neural tube closure (exencephaly). We report here that these PB2 KO mice have defects also in kidney morphogenesis. In PB2 / embryos the kidneys are smaller and the number ...

The influenza virus polymerase is formed by the PB1, PB2 and PA subunits and is required for virus transcription and replication in the nucleus of infected cells. As PB2 is a relevant host-range determinant we expressed a TAP-tagged PB2 in human cells and isolated intracellular complexes. Alpha-importin was identified as a PB2-associated factor by proteomic analyses. To study the relevance of t...

ion channels are responsible for control of cell function in excitable tissues such as heart and brain and also in organs and tissues traditionally thought to be non- excitable including liver and epithelium. in the present research, the effect of lead (pb2+) on ca2+ -dependent action potential and currents was studied in f77 neuronal soma membrane of helix aspersa. for this purpose, action pot...

Heavy metals in the environment cause adverse effects on living organisms. Agro-wastes have potential to remove heavy from aqueous solutions. In this study, orange peel cellulose (OPC) beads were utilized as adsorbents wastewater. The surface of adsorbent was studied by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy coupled with energy dispersive x-ray (SEM-EDS...