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Studies of interactions between drugs and DNA are very interesting and significant not only in understanding the mechanism of interaction, but also for guiding the design of new drugs. However, until recently, mechanisms of interactions between drug molecules and DNA were still relatively little known. It is necessary to introduce more simple methods to investigate the mechanism of interaction. In...
A new method of electrochemical probe has been proposed for the determination of Herring Sperm DNA (DNA) based on its interaction with Basic Brown G (BBG). The electrochemical behavior of interaction of BBG with DNA was investigated on Hg electrode. In 0.1molL −1 NH 3 –NH 4 Cl buffer solution (pH 8.0), BBG can be reduced on Hg electrode with a well-defined voltammetric peak...
With the measurement of molecular absorption, the interaction of neutral red (NR) with double-stranded DNA in large excess was investigated. It was found that the interaction of NR, existing in the acidic state (HNR) at pH 4.56, with double-stranded structure DNA displays different spectral features depending on the molar ratio of HNR/DNA, R. If R>1.33, the binding process is characterized by a...
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