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CD Spectroscopy to Study DNA-Protein Interactions
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Electrochemical and spectroscopic characterization of the interaction between DNA and Cu(II)-naringin complex

Lucilene D Mello1, Regina M S Pereira, Alexandra C H F Sawaya

  • 1Instituto de Química, UNICAMP, P.O. Box 6154, 13083-970 Campinas, SP, Brazil.

Journal of Pharmaceutical and Biomedical Analysis
|September 21, 2007
PubMed

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When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.