Effects of bridge ions, DNA species, and developing temperature on flat-lying DNA monolayers

Article Abstract:

The effects of bridge ions, DNA species and developing temperature on the configuration of DNA monolayers are investigated by using atomic force microscopy (AFM). The results have indicated that the appropriate interactions between divalent cations and DNA or mica surface are important for the formation of flat-lying DNA monolayers.

Usage, Monomolecular films, Atomic force microscopy, Structure

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Differential ionic permeation of DNA-modified electrodes

Article Abstract:

The pH and ionic-strength dependence of the methylene blue/leucomethylene blue (MB/LB) redox couple intercalated into DNA films are described. The results have shown that DNA films do not behave as pure ion-exclusion films, but there is a differential permselectivity that depends on the identity of the anions.

Analysis, Phosphates, Methylene blue, Hybridization, Anions

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Electrochemical investigations of M-DNA self-assembled monolayers on gold electrodes

Article Abstract:

A detailed account, of the electrochemical properties of metalated deoxyribonucleic acid (M-DNA) supported on gold electrodes, is given. Kinetic studies reveal that M-DNA allows electron transfer more easily than double stranded DNA.

Electrochemistry

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