Application of anodized aluminum in fluorescence detection of biological species

Pavel Takmakov, Ivan Vlassiouk, Sergei Smirnov

Research output: Contribution to journalArticlepeer-review

46 Scopus citations

Abstract

Thin nanoporous alumina obtained by anodization of aluminum films offers promising advantages for application in fluorescence-based biological sensors including convenient preparation, increased density of binding sites, and improved collection efficiency of fluorescence. These advantages are illustrated in the detection of streptavidin using biotin covalently bound to the surface of alumina nanopores. Fluorescence intensity enhancement as high as 7 times is observed in nanopores in comparison to flat glass surface.

Original languageEnglish
Pages (from-to)954-958
Number of pages5
JournalAnalytical and Bioanalytical Chemistry
Volume385
Issue number5
DOIs
StatePublished - Jul 2006
Externally publishedYes

Funding

Acknowledgements We are grateful to NIH for financial support (NIH SCORE GM08136) and would like to thank Dr. Dmitri Brevnov (University of New Mexico) for help with SEM.

Keywords

  • Biosensors
  • Biotin
  • Fluorescence/luminescence
  • Nanoporous aluminum oxide

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