Journal: PLoS ONE
Article Title: Platinum nanoparticles induce damage to DNA and inhibit DNA replication
Figure Lengend Snippet: (A) The suggested effects of PtNPs on polymerase chain reaction (PCR) is based on binding of PtNPs to the Taq DNA polymerase, which leads to ceasing of PCR, (B) whereas CisPt primarily intercalates in DNA structure and stops PCR by this way. The gel electrophoregrams of PCR product mixture with particular concentration of (C) PtNPs (0.04–4 200 ng/mL of Pt) and (D) CisPt (0.04–42 000 ng/mL of Pt). (E) DNA denaturation temperature affected by the 0–200 μg/mL of Pt derivatives. Fluorescence of labelled nucleotides of DNA fragment after sequencing, which was influenced by (F) 0–20 μg/mL of PtNPs and (G) 0–0.33 μg/mL of CisPt. For all measurement n = 3.
Article Snippet: The volume of the reaction mixture was 25 μL, which was composed of 2.5 μL of 10× standard Taq reaction buffer, 0.5 μL of 1 mM deoxynucleotide solution, 0.5 μL of each of the primers (10 μM), 0.125 μL of Taq DNA polymerase; selected volume of water or drugs diluted with water (sterile, ACS purity, Sigma-Aldrich) and 0.5 μL of bacteriophage λ DNA.
Techniques: Polymerase Chain Reaction, Binding Assay, Concentration Assay, Fluorescence, Sequencing