Volume 129, Issue 28 pp. 8195-8200
Zuschrift

Efficient Gene Transfection through Inhibition of β-Sheet (Amyloid Fiber) Formation of a Short Amphiphilic Peptide by Gold Nanoparticles

Dr. Poulami Jana

Dr. Poulami Jana

Institute for Organic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany

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Dr. Krishnananda Samanta

Dr. Krishnananda Samanta

Institute for Organic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany

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Sandra Bäcker

Sandra Bäcker

Institute for Biology, University of Duisburg-Essen, 45117 Essen, Germany

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Elio Zellermann

Elio Zellermann

Institute for Organic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany

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Prof. Shirley Knauer

Prof. Shirley Knauer

Institute for Biology, University of Duisburg-Essen, 45117 Essen, Germany

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Prof. Dr. Carsten Schmuck

Corresponding Author

Prof. Dr. Carsten Schmuck

Institute for Organic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany

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First published: 10 April 2017
Citations: 2

Abstract

The effect of citrate-stabilized gold nanoparticles (AuNPs) on the secondary structure of an artificial β-sheet-forming cationic peptide has been studied. The AuNPs inhibited β-sheet formation and led to fragmented fibrils and spherical oligomers with assembled AuNPs on their surface. Besides this structural change, the functional properties of the peptide are also different. Whereas the peptide was unable to act as a vector for gene delivery, formation of a complex with AuNPs allowed successful gene delivery into cells.

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