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Evaluation of the Toxic Potency of Selected Cadmium Compounds on A549 and CHO-9 Cells

Zapór L.

International Journal of Occupational Safety and Ergonomics

2014

Vol. 20, No. 4

573--581

Cytotoxicity of cadmium sulphide, oxide and chloride was tested using A549 and CHO-9 cells. Metabolic activity of cells (MTT test) and cell membrane permeability (NRU test) were used as cytotoxicity endpoints. The results revealed unexpectedly low toxicity of cadmium sulphide as compared to chloride and oxide. This preliminary report does not provide any explanation for this effect, but the result may nevertheless be interesting for future studies of toxicity mechanisms of cadmium compounds. First cadmium compounds caused damage or change in the permeability of cell membranes, then inhibition of metabolic activity of mitochondria. It cannot be ruled out that the cell lysosomes are at first exposed to the effect of cadmium.

Sensitizing of Semiconducting Photocatalysts by Cyanine Pigment with Two Conjugated Chromophores

Kobasa l. M., Kondratyeva I. V.

Polish Journal of Chemistry

2008

Vol. 82, nr 8

1639-1639

TiO2 and CdS based heterostructures (HS) with biscyanine – cyanine pigment comprising two conjugated chromophores as a sensitizer have been synthesized. Absorption spectra of HS have been analyzed and their photocatalytic activity (PA) in the reaction of methylene blue reduction was determined. Energy transformation and electron transferring processes induced by various spectral zones irradiation have also been described. It has been found that photocatalytic activity depends on the pigment concentration in HS. Interrelation between changes in PA and some important spectral parameters has also been determined.

Wpływ grubości na optyczne, strukturalne i elektryczne własności cienkich warstw CdS otrzymywanych metodą CBD

Schabowska-Osiowska E., Pisarkiewicz T., Kenig T., Handke B., Porada Z.

Elektronika : konstrukcje, technologie, zastosowania

2005

Vol. 46, nr 2-3

60-61

Cienkie warstwy siarczku kadmu o różnych grubościach nakładane były w kąpieli chemicznej (CBD). Warstwy wykazywały strukturę regularną. Ze wzrostem grubości przepuszczalność warstw w badanym zakresie widma silnie malała, zwiększała się natomiast wielkość ziarn CdS, występowała poprawa ciągłości warstwy i zmniejszały się nierówności powierzchni.

Cadmium sulphide thin films with various thickness were deposited using CBD method. The films have shown a cubric structure. With the increase of the film thickness the transmission in examined spectral range strongly decreased, while CdS grain size increased, the continuity of the film improved and the roughness of the surface decreased.