We synthesized a variety o f colloidal and non-colloidal mixed hexacyanoferrate(II) com plexes of Fe, C u, C o, Ni, Z n . Mn and studied the cesium sorption in vitro under physiological conditions (artificial gastric juice. pH 1.2 and artificial duodenal ju ice. pH 6.8). All of the hexacyanoferrates under study (except cesium iron (III) hexacyanoferrate C sFeH C F) sorb tracer am ounts of 1'7Cs...

Removal of cesium from synthetic aqueous solution through adsorption on vermiculite, under batch equilibrium experimental condition at six initial values of pH (3, 4, 6, 9, 11 and 12) and five temperatures (25, 50, 75, 85 and 95 °C) has been investigated. It is necessary to propose a suitable model for a better understanding of the mecha...

In this study, the adsorption of cesium, strontium, and rubidium radionuclides by ferritin magmolecules in a batch system was investigated under different experimental conditions. The experiments were conducted in a pilot plant that involved the contactor unit and the magnetic separator unit. The impact of the pollutant concentrations, adsorbent concentration, and pH on the efficiency of the pr...

Cesium (Cs) is chemically similar to potassium (K). However, although K is an essential element, Cs is toxic to plants. Two contrasting hypotheses to explain Cs toxicity have been proposed: (1) extracellular Cs+ prevents K+ uptake and, thereby, induces K starvation; and (2) intracellular Cs+ interacts with vital K(+)-binding sites in proteins, either competitively or noncompetitively, impairing...

We used cesium chloride (CsCl) for electrophysiologic studies in canine hearts in vivo and in vitro to examine the mechanisms underlying ventricular arrhythmias that are related to prolonged repolarization. Cesium is known to depress normal ventricular automaticity and some experimental arrhythmias by blocking delayed outward currents and prolonging action potential duration. In 10 dogs in norm...

Introduction: We present here preliminary results on partitioning of cesium between metal and silicate at high pressure and temperature. The purpose of these experiments is to develop a data set for the metalsilicate partitioning of cesium, a lithophile element with apparent mantle depletion, to determine whether, and under what conditions, cesium may take on more siderophile behavior. These da...

Increased firing of cholinergic neurons of the laterodorsal tegmental nucleus (LDT) plays a critical role in generating the behavioral states of arousal and rapid eye movement sleep. The majority of these neurons exhibit a prominent transient potassium current (IA) that shapes firing but the properties of which have not been examined in detail. Although IA has been reported to be blocked by int...

We suggest that both muand delta-opiate receptors on dorsal root ganglion neuron somata are coupled to voltageand/or calcium-dependent potassium channels since opioid peptide decreases of calciumdependent action potential duration were: (1) not associated with a change of resting membrane potential or conductance; (2) accompanied by an increase in action potential after-hyperpolarization, and (...

The buckybowl corannulene is known to be an excellent electron acceptor. UV photoelectron spectroscopy studies were performed with thin-film systems containing corannulene and cesium. Adsorption of submonolayer quantities of corannulene in ultrahigh vacuum onto thick Cs films, deposited at 100 K on a copper(111) substrate, induces a transfer of four electrons per molecule into the two lowest un...