Nanotechnology is new form of technology which has produced a great development in variousfields. Nanoparticles are of the great scientific interest as they are effectively a bridge between bulk material and atomic & molecular structures. Nanoparticles are the particle that have size 1 to 100 nm and possess due to large surface area to volume ratio & smaller size. Different types of nanom...

978-0-9798064-0-7/μTAS2007/$20©2007CBMS 251 Figure 1: ASV measurement of heavy metal using planar Bi electrode. (a) Pb and Cd start to deposit on the electrode at preconcentration potential; (b) deposited metals form multicomponent alloys with Bi; (c) Cd is first stripped from the electrode, and generates a peak current at its reduction potential, and (d) Pb is stripped off and generates anothe...

Environmental contamination by heavy metals is a serious problem due to their incremental accumulation in the food chain. Unlike most organic wastes and the microbial load in aquatic bodies, metal contaminants are not biodegradable, tending to accumulate in living organisms, thus becoming a permanent burden on ecosystems (Bayo, 2012). Most heavy metals are transition elements with incompletely ...

A heavy metal ion sensor was constructed by cross-linking melanin onto the gold electrode of quartz crystal microbalance (QCM). A mercury ion sensitivity of 518+/-37 Hz/ppm was observed, a substantial increase in sensitivity compared to previous reports of 10-50 Hz/ppm with the limit of detection at 5 ppb. Detection of other metal ions including Sn(2+), Ge(4+), Li(+), Zn(2+), Cu(2+), Bi(3+), Co...

Background and aims: From the past studies, it has been proved that consumption of heavy metals by humans may cause several chronicle problems like cancer, kidney and liver damage, high blood pressure and low blood pressure problems and etc. So, it has become very crucial to remove these heavy metals from industrial wastewater. The aim of this study was to find out a low cost a...

Salicylic acid-Formaldehyde-m-Cresol (SFM) terpolymer had been synthesized in DMF media by conventional method. The resulting resin had been characterized by FTIR spectra, elemental and thermogravimetric analyses. The morphology of SFM resin had been studied by SEM and Optical photograph. Various parameters like rate of equilibration, effect of pH on ion exchange capacity and effect of conc...

The modified surface of Typha latifolia L. root (MSTL), as an alternative economical adsorbent, wasused for the removal of Ni (II) and Cd(II) ions from aqueous solutions. The effect of initial pH, initialconcentration of metal ion, and contact time was investigated in a batch system at room temperature.The kinetics data could be fitted well by pseudo-second-order model with correlation coeffici...

purification of extra-cellular cellulolytic enzymes from c e l l u l o mssp. strain 0, isolated from forest soil in the north of iran , was studied by using gel filtration and ion-exchange chromatography. two endo-glucanases (endo-i & endo-ii) and one exo-glucanase (exo-i) were purified to hornogenity . the purified enzymes had molecular weights of about 39.000,70.000 and 90.000 daltons for end...

Metals such as platinum, gold, ruthenium, titanium and tin can be a source of biologically active derivatives and, occasionally, become tools in the chemotherapy against different kinds of human tumors. The preclinical evaluation includes not only antitumor activity tests but also the investigation of the particular chemistry, the molecular targets within biological materials and the effect on ...

Sensitive and selective, but fast and simple assays of cyanide ion in waste and natural waters, as well as in biological samples are required in case of accidental pollution with such species. Cyanide reaction with ninhydrin has been recommended for instant detection of small traces of cyanide (detection limit 1.5 ng ml-1). However, the oxidizers and heavy metal ions, such as Hg, Cu, Ag may int...