considering the point that the existence of heavy metals in the wastewater are so dangerous forthe environment and it would have many bad consequences for all the creatures including human beings, wemust try out the ways that make us capable of adsorbing these heavy metals. in order to accomplish this goal we should use a method called adsorbing. in this study the adsorption of copper ions in h...

In a study of diet and early breast cancer, blood plasma copper has been analyzed by Proton Induced X-ray Emission analysis as both total copper (P-Cu) and that ultrafiltrable from plasma (P-edu-Cu) through membranes with a cut-off at molecular mass 10,000 after equilibration with disodium ethylene diamine tetraacetic acid (EDTA) at 4 degrees C. Ceruloplasmin (P-cer) was also measured using nep...

This investigation was conducted to determine the intracellular distribution of copper in the liver of normal sheep, and the changes associated with exposure to increased dietary copper. Normal rat liver (3.8 + 1.0) ~/g Cu/g liver, wet tissue basis) and normal sheep liver (102.0 -+ 37.2 /~g Cu/g liver) was processed to give the four common subcellular fractions. When the intracellular distribut...

a highly convenient, selective and sensitive procedure for pre-concentration, separation and determination of sub-ppm levels of cu 2+ in aqueous samples based on modification of octadecyl silica bonded phase membrane (osbpm) disks is described using benzildithiosemicarbazone  (bdsc) as a powerful modifier. it was revealed that each loaded osbpm disk with 6.0 mg of bdsc serves as excellent bead ...

background: anzali wetland has been subjected to high levels of pollution due to contamination from several industrial sites in addition to agricultural chemicals. mussels have been widely used for monitoring pollution in aquatic ecosystems, because they, as filter feeders, bioaccumulate pollutants. therefore we decided to evaluate anodonta cygnea for its application as a bio-monitor for copper...

The antimicrobial properties of copper have been recognized for several years; applying these properties to the prevention of diseases such as bovine mastitis is a new area of research. The aim of the present study was to evaluate in vitro the antimicrobial activity of copper on bacteria isolated from subclinical and clinical mastitis milk samples from two regions in Chile. A total of 327 micro...

In the previous paper (Bremner & Marshall, 1974) the effects of variations in copper and zinc status of ruminants on the distribution of the metals among soluble hepatic proteins were described. Three fractions ( I-3), with approximate molecular weights of 3 7 j ooo,35 ooo and I z 000, were isolated by gel filtration on Sephadex G-75 but none of these was fully characterized. The distributions ...

The effects of humic acids (HA) on Cu uptake by the blue mussel (Mytilus edulis) were studied in chemically defined seawater. Short-term uptake by excised gills was studied and compared with whole-mussel Cu accumulation. Copper uptake in gills is not a saturable process within the time frame and concentration range tested, being a linear function of time (0-120 min) and Cu concentration (0-150 ...

Copper-transporting ATPases (Cu-ATPases) ATP7A and ATP7B are evolutionarily conserved polytopic membrane proteins with essential roles in human physiology. The Cu-ATPases are expressed in most tissues, and their transport activity is crucial for central nervous system development, liver function, connective tissue formation, and many other physiological processes. The loss of ATP7A or ATP7B fun...

this study has been carried out to determine the accumulation of heavy metals (arsenic, copper, lead, tin and zinc) in fish samples collected from former tin mining catchment. total eight types of fish family having fifteen different species are identified. cyperinidae is the most abundant family with eight different species found in the catchment. fish samples were analysed by using inductivel...