Photoisomerization and aggregation behavior of DNA/poly-lysine/azobenzene (DR80) dye ultrathin films: Substrates for optobioelectronic applications

Yingfan Wang, Eric Wallace, Amy Walton, Gautham Bathia, Mi Kyoung Park, Rigoberto Advincula

Research output: Contribution to journalArticle

6 Citations (Scopus)


Multilayer thin films of alternating poly-lysine (PDADMAC), DR80, and DNA are assembled using the alternate polyelectrolyte deposition (APD) approach based on electrostatic interaction. Organization of DNA, polypeptides, enzymes, on electrode surfaces by this method is demonstrated. Monolayers and multilayers are assembled on surfaces using polyelectrolytes as linking units. The photoisomerization and dye aggregation behavior under unpolarized and polarized irradiation conditions is characterized by UV-vis spectroscopy. Azobenzene-containing polyelectrolyte films is used as substrates for biosensor development.

Original languageEnglish
Pages (from-to)1016-1017
Number of pages2
JournalAmerican Chemical Society, Polymer Preprints, Division of Polymer Chemistry
Issue number1
Publication statusPublished - 2000 Mar
Externally publishedYes


ASJC Scopus subject areas

  • Polymers and Plastics

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