Phosphatidylcholine vesicles harboring the lipophilic metal ion carrier A23187 in the bilayer and encapsulating ethylenediamine tetraacetic acid (EDTA) exhibit broadly varied, pH-dependent affinity for Cu2+, Pb2+, Cd2+, and Ca2+ at micromolar levels. Initial rates of uptake by these metal-sorbing vesicles (MSVs) is strongly dependent on the metal ion affinity of A23187 and the dissociation rate...

The effects of calcium propionate, sodium bicarbonate, and sodium ethylenediamine-tetraacetic acid (EDTA) on postharvest pathogens of apple and peach, and on improving the efficacy of the biocontrol product Aspire were evaluated. All three materials had a distinct inhibitory effect on the radial growth of Botrytis cinerea and Penicillium expansum in vitro. The inhibitory effect increased with t...

Extracts of bean (Phaseolus vulgaris L.) etioplasts and chloroplasts contain a dithiothreitol-activated Ca(2+)-dependent adenosine triphosphatase which is inhibited by Dio-9. The chloroplast and etioplast enzymes have identical R(F) values upon disc gel electrophoresis. Optimum extraction of the enzyme from either plastid preparation is accomplished with 1 mm ethylenediamine tetraacetic acid. P...

Multi-layered hollow LiYF4:Eu(3+) micro-octahedrons, with about 400 nm of single-layer thickness and 300 nm of interlayer space, have been synthesized via a facile hydrothermal route in the presence of surfactant ethylenediamine tetraacetic acid (EDTA). The mechanisms of the morphology evolution of the LiYF4:Eu micro-octahedrons are investigated in detail. Time-dependent experiments indicate th...

This work deals with a new abiotic oxidation process designed as a suitable pre-treatment step within a biological depuration of wastewater containing phenol or its derivatives (o-cresol, 2-chlorophenol and p-nitrophenol) or aniline. The reaction was carried out in a stirred tank reactor at 20 degrees C and atmospheric pressure in presence of the organic compound, 150mgl(-1), zero valent iron p...

Dissolved organic matter (DOM) has been implicated as an important complexing agent for Hg that can affect its mobility and bioavailability in aquatic ecosystems. However, binding constants for natural Hg-DOM complexes are not well known. We employed a competitive ligand approach to estimate conditional stability constants for Hg complexes with DOM isolates collected from Florida Everglades sur...

Herein, we developed a method to prepare monodisperse poly(styrene-co-maleic anhydride)@Ag (PSMA@Ag) core-shell microspheres with high surface charge intensity by using an in situ reduction method. In this method, ethylenediamine tetraacetic acid tetrasodium salt (Na4EDTA) was used as a reducing agent to promote the growth of Ag, and at the same time endowed the PSMA@Ag spheres with a surface c...

The distribution of metallic ions in plant tissues is associated with their toxicity and is important for understanding mechanisms of toxicity tolerance. A quantitative histochemical method can help advance knowledge of cellular and subcellular localization and distribution of heavy metals in plant tissues. An immunohistochemical (IHC) imaging method for cadmium ions (Cd2+) was developed for th...

Anticoagulants and storage time’s effect on hemogram and differential leukocyte count in 26 Mugil cephalus was investigated. After blood collection, samples were put, in three microtubes containing respectively: ethylenediamine tetraacetic acid (EDTA), heparin, sodium citrate. Analysis were assessed immediately (T0) and 24 h (refrigerated at +4°C) after collection (T24). Statistical analysis sh...

Surfactant protein (SP)-D gene targeted (SP-D-/-) and wild-type mice were infected with respiratory syncytial virus (RSV) by intratracheal instillation. Decreased clearance of RSV was observed in SP-D-/- mice. Deficiency of SP-D was associated with increased inflammation and inflammatory cell recruitment in the lung after infection. In vitro, SP-D bound RSV-infected Vero cells. Binding was inhi...