Cyanide assimilation by the beta-cyanoalanine pathway produces asparagine, aspartate and ammonium, allowing cyanide to serve as alternate or supplemental source of nitrogen. Experiments with wheat and sorghum examined the enrichment of (15)N from cyanide as a function of external cyanide concentration in the presence or absence of nitrate and/or ammonium. Cyanogenic nitrogen became enriched in ...

Donor-acceptor-donor (D-A-A) structures with 2,1,3-benzothiadiazole as an internal acceptor and the 4(7)-cyanogroup anchor have been investigated for various photovoltaic applications such dye-sensitized solar cells (DSSCs) organic light emitting diodes (OLEDs). They are usually obtained by cyanation of 4(7)-bromo-2,1,3-benzothiadiazoles. In this communication, reaction (E)-4-(2-(7-bromobenzo[c...

One of the new methods used to remove contaminants from effluent is electrocoagulation method, which sometimes combined with other increase removal efficiency contaminants. To simultaneously nickel, cyanide, zinc, and copper, method photo-electrocoagulation was along an oxidizing agent, namely hydrogen peroxide (Hp). In addition, effects factors affecting were studied, including pH, electrode a...

Concern over poisoning as a result of eating cassava roots or shoots has led to these studies to determine factors which lead to high cyanide content in these tissues and how detoxification can be carried out. Plant age or stage of development does not seem to have a clear influence on root or shoot cyanide content. Genetic control on cyanide content seems significant as varieties may be identi...

At the Bonfim mine, cyanide processing used to extract gold from abandoned tailings represents an important environmental concern. In order to evaluate cyanide concentrations, twenty samples of sediments of the main streams crossing the mine site, and ten samples of the five mainly tailings were analyzed for total cyanide. Cyanide was found in two samples of tailings (0.83 and 1.44mg/Kg of tota...

The filamentous fungus Fusarium lateritium is cyanide tolerant, due partly to the induction of the enzyme cyanide hydratase in the presence of cyanide. This enzyme catalyses the hydration of cyanide to formamide. The expression in Escherichia coli of a cDNA clone encoding cyanide hydratase is described. The cDNA cloned was expressed as a transcriptional fusion in the expression vector pKK233-2 ...

Although commonly known as a highly toxic chemical, cyanide is also an essential reagent for many industrial processes in areas such as mining, electroplating, and synthetic fiber production. The "heavy" use of cyanide in these industries, along with its necessary transportation, increases the possibility of human exposure. Because the onset of cyanide toxicity is fast, a rapid, sensitive, and ...

Three water-soluble fluorescent probes have been specifically designed to determine free cyanide concentrations up to physiologically lethal levels, >20 microM. The probes have been designed in such a way as to afford many notable sensing features, which render them unique with regard to signal transduction, photophysical characteristics, and their application to physiological cyanide determina...

After long-term accumulation, weathering and rainfall of metals non-metals in tailings ponds, the chemical composition will change, surface heavy may gradually migrate to bottom layer, thus showing a cumulative effect. At present, distribution cyanide vertical space has not been reported. In this work, 12 sampling points were arranged for pond by grid method Jilin, China. The contents determine...