The synthesis of ionic complexes cadmium(II) chloride and cobalt(II) with N,N'-diethylthiourea (detu) ligands has not been previously reported. Therefore, in this research, the was carried out to study structure characterization two complex compounds. cadmium(II)-detu synthesized using direct reaction method a ratio between Cd(II) salt detu ligand 1:2. Meanwhile, cobalt(II)-detu Co(II) 2:4. hav...

Low molecular weight intracellular sulfhydryl-containing compounds are responsible for the intracellular detoxification of metals such as Cd and Cu in eucaryotic phytoplankton. Glutathione, the most abundant thiol in non-stressed cells (0.8 to 2.8 mM), chelates metals directly, and also serves as the biochemical precursor from which phytochelatins are synthesized. Very little is known about phy...

The photochemical instability of CdSe nanocrystals coated by hydrophilic thiols was studied nondestructively and systematically in water. The results revealed that the photochemical instability of the nanocrystals actually included three distinguishable processes, namely the photocatalytic oxidation of the thiol ligands on the surface of nanocrystals, the photooxidation of the nanocrystals, and...

CdSe quantum dots (QDs) have traditionally been synthesized in organic phase and then transferred to aqueous solution by functionalizing their surface with silica, polymers, short-chain thiol ligands, or phospholipid micelles. However, a drastic increase in the hydrodynamic size and biotoxicity of QDs may hinder their biomedical applications. In this paper, the TGA-capped CdSe QDs are directly ...

Bioassay-guided fractionation of a culture extract of Beauveria felina EN-135, an entomopathogenic fungus isolated from a marine bryozoan, led to the isolation of a new cyclodepsipeptide, iso-isariin D (1); two new O-containing heterocyclic compounds that we have named felinones A and B (2 and 3); and four known cyclodepsipeptides (4-7). The structures were elucidated via spectroscopic analysis...

The vast application of fluorescent semiconductor nanoparticles (NPs) or quantum dots (QDs) has prompted the development of new, cheap and safer methods that allow generating QDs with improved biocompatibility. In this context, green or biological QDs production represents a still unexplored area. This work reports the intracellular CdTe QDs biosynthesis in bacteria. Escherichia coli overexpres...

In this contribution several new coordination compounds on the basis of cadmium(II) thio- and selenocyanate with pyrimidine as co-ligand were prepared and investigated for their structural, thermal and spectroscopic properties. The reaction of cadmium(II) thiocyanate with pyrimidine leads to the formation of four compounds, which from a structural point of view are closely related. In the most ...