Molecules of a thiol-functionalized phenylacetylene derivative were assembled on the CdS nanorod surface and copolymerized with phenylacetylene, affording an inorganic semiconductor-conjugated polymer hybrid with excellent solubility and high photoconductivity.

Electrochemical studies of thiol-capped CdTe nanocrystals in aqueous solution have demonstrated several distinct oxidation and reduction peaks in the voltammograms, with the peak positions being dependent on the size of the nanocrystals. While the size dependence of the reduction and one of the oxidation potentials can be attributed to altering the energetic band positions owing to the quantum ...

The carcinogenicity of nickel, chromium, arsenic, cobalt, and cadmium compounds has long been recognized. Nevertheless, the mechanisms involved in tumor formation are not well understood. The carcinogenic potential depends on metal species; major determinants are oxidation state and solubility. Two modes of action seem to be predominant: the induction of oxidative DNA damage and the interaction...

Catharanthus roseus is a medicinal and ornamental plant with growing attention toward its economical value. Cell suspension from C. roseus were treated with 0 to 60mM of cadmium nitrate for 1, 3 and 6 days, then cell viability was determined using trypan blue and MTT assay. Cell morphology was investigated using 0, 10, 30 and 50 mM of cadmium nitrate as selected dose for 3 days. Callus of C.ros...

Isothermal Titration Calorimetry (ITC) was used to study the binding of Cd(2+) by phytochelatins ((γGlu-Cys)(n)-Gly, PC(n); n = 1-5) and their selected fragments (Cys, Cys-Gly and γGlu-Cys) in order to understand the influence of the chain length on the complex stabilities and the origin of the enhanced affinities in Tris buffer at pH 7.5 and 8.5 and at 25 °C. Different complexes are formed wit...

OBJECTIVES Consolidation of epidemiological data on pancreatic cancer and worksite exposures. METHODS Publications during 1969-98 were surveyed. Studies without verified exposures were excluded. Meta-analyses were conducted on data from 92 studies covering 161 populations, with results for 23 agents or groups of agents. With a standard format, five epidemiologists extracted risk estimates and...

Several compounds were administered to pregnant Wistar-derived rats either 24 or four hours prior to the recovery of day 10 embryos for in vitro culture in Waymouth's medium and fetal calf serum. The compounds tested were 2-amino-1,3,4-thiadiazole (thiadiazole), cadmium sulfate, 1,2-dibromo-2,2-dichloroethyl dimethyl phosphate (dibrom), 2-(sec-Butyl)-4,6-dinitrophenol (dinoseb), led nitrate, po...

A series of inorganic―organic hybrid compounds were analyzed by using X-ray crystallographic techniques to study the secondary interactions in cadmium bromide based hybrid materials. The phenomenon of metallophilic interactions with minimum Cd...Cd distance [3.962(1), 3.389(3) and 3.924(1) Å] has been observed in Cd2, Cd7 and Cd11 compounds whereas the metallophilicity is missing in other compo...

The white-rot fungus Pleurotus ostreatus was able to degrade the polycyclic aromatic hydrocarbons (PAHs) benzo[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, dibenzo[a,h]anthracene, and benzo[ghi]perylene in nonsterile soil both in the presence and in the absence of cadmium and mercury. During 15 weeks of incubation, recovery of individual compounds was 16 t...