The paper is concerned with (i) the hydrothermal synthesis of hydrous zirconium dioxide (HZD) bearing analcime (HZD-ANA, zirconia-analcime) and (ii) its sorption properties respect to Cs+ Sr2+. HZD-ANA particles were synthesized from coal fly ash cenospheres composed aluminosilicate glass (SiO2/Al2O3)wt.=3.1 characterized by PXRD, SEM-EDS, STA, low-temperature N2 adsorption. non-radioactive sim...

Radionuclides such as strontium 90, 90Sr, pose severe threats to the environment and humans since wide application of nuclear power plants around world. In environment, rapid remediation Sr2+ contaminated water still remains challenging. The current study developed an economical biomaterial-based hydrogel adsorbent with excellent adsorption performance achieved by ion-imprinting abundant thiol ...

BACKGROUND EF-hand proteins can be activated by the binding of various heavy metals other than calcium, and such complexes can disturb the calcium-signaling pathway and cause toxicity and disease causing state. So far, no comprehensive study has been done to understand different heavy metals binding to calcium signaling proteins. RESULTS In this work, the flexibility of the EF-hand motifs are...

This study aims to prepare ion-imprinted polymer (IIP) with the benefit of a metal-based sorbent, which is fabricated selectively adsorb lithium (Li+) from aqueous solutions, and in an attempt remove strontium (Sr2+). The adsorption processes were carried out at different pH values, initial concentrations, temperatures, optimize experimental conditions, use response surface methodology (RSM). s...

Sr2−xBaxTa3O10−yNz (x = 0.0, 0.5, 1.0) nanosheets were prepared by exfoliating layered perovskite compounds (CsSr2−xBaxTa3O10−yNz). The Sr1.5Ba0.5Ta3O9.7N0.2 nanosheet showed the highest photocatalytic activity for H2 production from the water/methanol system among the Sr2−xBaxTa3O9.7N0.2 nanosheets prepared. In addition, Rh-loaded Sr1.5Ba0.5Ta3O9.6N0.3 nanosheet showed the photocatalytic activ...

The effect of repetitive stimulation on synaptic transmission was studied in the isolated superior cervical ganglion of the rabbit under conditions of reduced quantal content. Excitatory postsynaptic potentials (EPSP) were recorded with the sucrose gap technique to obtain estimates of transmitter release. Four components of increased transmitter release, with time constants of decay similar to ...

Due to the unique hydrogeological environment of karst areas, pollutants are more likely enter soil and water, showing a special migration transformation behavior. In this work, binding behaviors between strontium (Sr2+) dissolved organic matter (DOM) extracted from under influence pH Ca2+ in typical area were investigated by applying three-dimensional fluorescence spectroscopy combined with pa...

The transmembrane voltage needed to open different voltage-gated K (Kv) channels differs by up to 50 mV from each other. In this study we test the hypothesis that the channels' voltage dependences to a large extent are set by charged amino-acid residues of the extracellular linkers of the Kv channels, which electrostatically affect the charged amino-acid residues of the voltage sensor S4. Extra...

Strontium sorption to amorphous silica and goethite was measured as a function of pH and dissolved strontium and carbonate concentrations at 25 degrees C. Strontium sorption gradually increases from 0 to 100% from pH 6 to 10 for both phases and requires multiple outer-sphere surface complexes to fit the data. All data are modeled using the triple layer model and the site-occupancy standard stat...

While algorithms for bipolar intraventricular electrogram analysis have potential use in complementing rate criteria for ventricular tachycardia (VT) detection by implantable antitachycardia devices, the sensitivity of such algorithms to the intracavitary site of electrogram detection has not been determined. In this study, unfiltered (1-500 Hz) electrograms were recorded from a bipolar electro...