Abstract
Studies were made on the intermolecular interaction of ten 9-diethylaminobenzo [α]-phenoxazonium salts (BPZ) and calf-thymus deoxyribonucleic acid (DNA) and antibacterial activities for Staphylococcus aureus 209P of BPZ. (1) The interaction system of BPZ and DNA was found to show a flow dichroism in the visible region. A value of the ΔE in the equation ΔE=E11-E⊥ is found to be negative, and flow dichroism studies indicate that BPZ intercalates in the same plane as DNA base pairs. (2) The flow dichroism's ratio in the visible region produced by the interaction of BPZ with DNA paralleled in minimum inhibitory concentration (MIC) of BPZ for Staphylococcus aureus 209P.
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Schedule a callMore From: Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan
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