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Study on the interaction of platinum(IV), gold(III) and silver(I) ions with DNA

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Abstract

Fluorescence, absorption spectra have been produced by the interaction of platinum(IV), silver(I) and gold(III) ions with the berberine–DNA system (berberine, Scheme 1). Platinum(IV) and gold(III) ions show different effects from that of silver(I) ion on the spectral characteristics of the berberine–DNA system. Quenching fluorescence is seen with platinum(IV) and gold(III) ions addition, whereas increasing fluorescence is observed for silver(I) ions. The addition of gold(III) and silver(I) ions cause an increase in absorption of the berberine–DNA system. The above results suggest that different metal ions exhibit different affinities when binding to DNA correlates well with the ions’ charge, structure and the coordination ability.

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Authors and Affiliations

  1. College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, P.R. China

    Yu-min Song, Xiao-lin Lu, Mei-ling Yang & Xiu-rong Zheng

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  1. Yu-min Song
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  2. Xiao-lin Lu
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  3. Mei-ling Yang
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  4. Xiu-rong Zheng
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Correspondence to Yu-min Song.

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Song, Ym., Lu, Xl., Yang, Ml. et al. Study on the interaction of platinum(IV), gold(III) and silver(I) ions with DNA. Transition Met Chem 30, 499–502 (2005). https://doi.org/10.1007/s11243-005-2663-0

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  • DOI: https://doi.org/10.1007/s11243-005-2663-0

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