DNA strand breaks were observed in bacteria treated with Pt(IV) but not Pt(II) antitumor compounds by two methods. First, compounds which cause DNA strand breaks produced an SOS induction signal which was detected by a rapid bacterial assay. In addition
Several effects of four diamminechloroplatinum compounds (II and IV) in Chinese hamster ovary cells were studied. The two cis-compounds [cis-diamminedichloroplatinum(II) and cis-diamminetetrachloroplatinum(IV)] are known to possess antitumor activity, whereas the two trans-stereoisomers [trans-diamminedichloroplatinum(II) and trans-diamminetetrachloroplatinum(IV)] are inactive. When the effects
After exposure of bacteria to equal concentrations of cis-diamminedichloroplatinum(II) (DDP) and cis-diamminetetrachloroplatinum(IV) (DTP), the intracellular concentration of DTP was an order of magnitude greater than DDP. However, at identical intracellular drug concentrations, the Pt(IV) compound formed only half as many
Plasmonic nanoparticles have unique optical properties that can be tailored to suit a variety of applications in the biotechnology1–8 and electronics9–16 industries.
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