The final repository for short-lived, low and intermediate level radioactive waste in Sweden is built to act as a passive repository. Already within a few years after closure water will penetrate the repository and conditions of high alkalinity (pH 10.5–13.5) and low temperature (

The present communication represents the experimental results on CO2 solubility in aqueous Sr(OH)2 as an innovative absorbent. The absorption experiments were carried out over the temperature range of 303.14–333.14 K and CO2 inlet partial pressure range of 10.133–20.265 kPa in the light of coa...

A commercial Nafion membrane was modified by impregnating hydroscopic strontium hydroxide to retain electrochemically produced water in the membrane. Hydroscopic strontium hydroxide/Nafion (Sr/Nafion) composite membranes were produced by an in situ acid-catalyzed sol–gel reaction in Nafion perf...

Strontium is one of the major components discharged from nuclear power plant, ceramic industry and fire cracker manufacturing Industry. Due to usage of strontium in various fields, the disposal of the wastes is often found to be inadequate. Strontium has an innate ability to replace calcium in b...

Radiostrontium is released to the environment from routine and accidental discharge and acts on living organisms either from external sources or after absorption. When incorporated by plants, it enters the food chain and causes primary threat to human health and the environment. Understanding th...

The surface-phase reaction products of dihydromyrcenol (2,6-dimethyl-7-octen-2-ol) with ozone (O3), air, or nitrogen (N2) on silanized glass, glass and vinyl flooring tile were investigated using the recently published FACS (FLEC (Field and Laboratory Emission Cell) Automation and Control System...

A toxicologic and dermatologic review of tetrahydromyrcenol when used as a fragrance ingredient is presented.

The Knoevenagel condensation of arylacetonitriles with ethyl 4,6-dichloro-3-formyl-1H-indole-2-carboxylate (2), followed by hydrolysis, provides a convenient entry into a series of analogs of MDL 105,519, 1, a selective glycine site N-methyl-d-aspartate (NMDA) receptor antagonist. Surprisingly, ...

3-(2-Carboxyethyl)-4,6-dichloro-1H-indole-2-carboxylic acid (MDL-29951), an antagonist of the glycine site of the NMDA receptor, has been found to be an allosteric inhibitor of the enzyme fructose 1,6-bisphosphatase. The compound binds at the AMP regulatory site by X-ray crystallography. This re...

xSnO–(100 − x)NaPO3 glasses were prepared under argon atmosphere for 0 ⩽ x ⩽ 40. Wet chemical analyses and Mössbauer spectroscopy indicate the presence of Sn(II) and Sn(IV) in the glasses, with a majority of Sn(II). 119Sn NMR and Mössbauer spectra show that the local environment of Sn(II) are c...

A series of peracetylated β-sugar-1-phosphates with l-fuco configuration are efficiently prepared chemically and coupled in high yield to purine monophosphate bases via imidazolide activation. The resulting purine diphosphate sugars are deacetylated completely by a mild treatment with commercia...

Two types of nucleoside diphosphate kinase (NDP kinase I and NDP kinase II) have been purified from spinach leaves to electrophoretic homogeneity. The enzymes were copurified with apparent [35S]GTPγS-binding activities. NDP kinase I, which was not adsorbed to a hydroxyapatite column, and NDP ki...

A nickel diphosphate with mixed cations, Na(NH4)[Ni3(P2O7)2(H2O)2] with a layered structure has been synthesized under hydrothermal conditions for the first time and characterized by single crystal X-ray diffraction, IR spectroscope and magnetization measurements. The structure consists of cis- ...

The polyphosphazene {[NP(O2C12H8)]0.5[NP(OC6H4Br)2]0.5}n (1) [(O2C12H8) = 2,2′-dioxy-1,1′-biphenyl] that, as an strictly alternating copolymer, can be considered nearly as the homopolymer [NP(O2C12H8)NP(OC6H4Br)2]n, was reacted first with tBuLi in THF at −78 °C to give the intermediate [NP(O2...

Two new alkali-metal tin(II) phosphates – Na10Sn31(HPO4)6(P2O7)6(PO4)12 (1) and K2SnP2O7 (2) – were synthesized by high-temperature reactions and structurally characterized by single-crystal X-ray diffraction. Na10Sn31(HPO4)6(P2O7)6(PO4)12 crystallized in the noncentrosymmetric space group P-6...

A novel biomimetic membrane made of conducting polymer (CP) film with dispersed biological ligands (BL) is described. Adenosine diphosphate (ADP), which serves as BL, is invited as a dopant into the CP matrix formed by poly(ethylene 3,4 dioxythiophene) (PEDOT) during electropolymerization. The P...

High-resolution NMR spectra of spin-12 nuclei, particularly 119Sn and 31P, in solid tin(II) phosphite, SnHPO3, and tin(II) phosphate, SnHPO4, are presented. The results are discussed in relation to the crystal structures. Spinning sideband analysis has been carried out for both nuclei, giving in...

Neutron and X-ray diffraction experiments with large ranges of scattering vector, up to Qmax of 400 nm−1 and 250 nm−1, respectively, were performed on (SnO)x(P2O5)1-x glasses with 0.5 ≤ x ≤ 0.7, and the structural parameters of the PO and SnO polyhedra were determined. The fraction of P–NBO (...

The interactions of brilliant cresyl violet (BCV) with herring sperm DNA in γ-cyclodextrin (γ-CD) supramolecular system were studied by UV-vis absorption spectroscopy and cyclic voltammetry (CV). Both UV-vis absorption and CV data show that the interaction of BCV with DNA depends on the concen...

Fluorescence resonance energy transfer has emerged as a powerful technique in developing semiconductor quantum dot based sensors. Here we report FRET from CdSe (core) and CdSe/ZnS (core/shell) QD donors to cresyl violet dye acceptor employing steady state and time resolved spectroscopy technique...