Peptide-Mediated Constructs of Quantum Dot Nanocomposites for Enzymatic Control of Nonradiative Energy Transfer

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Date

2011-04-01

Author

Şeker, Urartu Özgür Şafak
Ozel, Tuncay
Demir, Hilmi Volkan

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A bottom-up approach for constructing colloidal semiconductor quantum dot (QDot) nanocomposites that facilitate nonradiative Forster-type resonance energy transfer (FRET) using polyelectrolyte peptides was proposed and realized. The electrostatic interaction of these polypeptides with altering chain lengths was probed for thermodynamic, structural, and morphological aspects. The resulting nanocomposite film was successfully cut with the protease by digesting the biomimetic peptide layer upon which the QDot assembly was constructed. The ability to control photoluminescence decay lifetime was demonstrated by proteolytic enzyme activity, opening up new possibilities for biosensor applications.

URI

https://hdl.handle.net/11511/119404

Journal

NANO LETTERS

DOI

https://doi.org/10.1021/nl104295b

Collections

Department of Biology, Article

Citation Formats

U. Ö. Ş. Şeker, T. Ozel, and H. V. Demir, “Peptide-Mediated Constructs of Quantum Dot Nanocomposites for Enzymatic Control of Nonradiative Energy Transfer,” NANO LETTERS, vol. 11, no. 4, pp. 1530–1539, 2011, Accessed: 00, 2026. [Online]. Available: https://hdl.handle.net/11511/119404.