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Prism coupler and microscopic investigations of DNA films

Samoc, Anna; Galewski, Zbigniew; Samoc, Marek; Grote, James G


DNA is a polyelectrolyte capable of forming thin films with interesting optical properties. We investigated refractive indices and optical anisotropy of films of the native, sodium ion-based DNA (Na-DNA) and DNA bearing the cetyltrimethylammonium ion (DNA-CTMA) using a prism coupler technique. The light polarization direction was either parallel (nTE) or perpendicular to the surface plane of the films (nTM). The index values and the birefringence of DNA films vary considerably depending on the...[Show more]

CollectionsANU Research Publications
Date published: 2007
Type: Book chapter
DOI: 10.1117/12.737248


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