A comparative study was conducted in rat primary cortical (CX) and mesencephalic (MC) neurons to investigate intracellular cascades activated during cyanide-induced injury and to determine the point at which the cascades diverge to produce either apoptosis or necrosis. Cyanide treatment (400 microM) for 24 h produced primarily apoptosis in CX cells, whereas the same concentration of cyanide ind...

The cost of cyanide consumption and destruction can be a significant percentage of total operating costs on a gold plant, and unlike other operating costs, yields no economic “return”. The choice of the best strategy for handling cyanide in the tailings can therefore have a major influence on the economic health of a project. The economic impact of cyanide is different in every operation, but i...

cyanide (cn ) is a toxic species that is found predominantly in industrial effluents generated by metallurgical operations. cyanide’s strong affinity for metals makes it favorable as an agent for metal finishing and treatment and also as a lixiviate for metal leaching, particularly gold. these technologies are environmentally sound but require safeguards to prevent accidental spills from cont...

The beneficial role of lithium bis(trimethylsilyl) phosphate (LiTMSP), which may act as a novel bifunctional additive for high-voltage LiNi1.5Mn0.5O4 (LNMO)/graphite cells, has been investigated. LiTMSP is synthesized by heating tris(trimethylsilyl) with tert-butoxide. cycle performance LNMO/graphite cells at 45 °C significantly improved upon incorporation (0.5 wt %). Nuclear magnetic resonance...

substituted naphthofurans and naphthopyrans were constructed at high temperature from allyl or propargyl naphthyl ethers via claisen rearrangement in moderate to good yields. also, substituted (trimethylsilyl)-naphthofurans were synthesized from the corresponding naphtofurans.

the enzyme rhodanese (thiosulfate: cyanide sulfurtransferase) is a ubiquitous enzyme and its activity ispresent in all living organisms. many functions including cyanide detoxification, formation of iron-sulfurcenters and participation in energy metabolism have been attributed to this enzyme. the enzyme catalyzesthe transfer of a sulfur atom from sulfane containing compounds (such as thiosulfat...

CONTEXT Cyanide is a component of smoke in residential and industrial fires, and accidental exposure to cyanide occurs in a variety of industries. Moreover, cyanide has the potential to be used by terrorists, particularly in a closed space such as an airport or train station. Current therapies for cyanide poisoning must be given by intravenous administration, limiting their use in treating mass...

Although the efficacy of induced methemoglobinemia in cyanide poisoning has been demonstrated both therapeutically and prophylactically (l),l the tissue reactions involved in the protection of animals from the lethal effects of the cyanide ion by methemoglobin are only imperfectly understood. Presumably, cyanide interferes with cellular respiration by forming a slightly dissociable complex with...

Pseudomonas pseudoalcaligenes CECT5344 can be used in cyanide bioremediation processes because it grows at pH 9.5 using 2.0 mM cyanide at the sole nitrogen source. Cyanide strongly binds to metals creating iron-deprivation conditions. The bacterium responds to the presence of cyanide by inducing several processes such as siderophore synthesis for iron capture, cyanide-insensitive respiration sy...

In the first part of this research, extensive speciesdependent cyanide recoveries studies were performed using the approved standard methods available for determination of free cyanide. The data obtained show that serious problems are associated with both the CATC (cyanide amenable to chlorination) and WAD (weak and dissociable cyanide) methods. In the second part, a novel flow injection gas-di...