Type

Journal Article

Authors

Robert J. Forster
Tia E. Keyes
Neal Leddy
Heath Bagshaw
Ciaran Dolan
Andrea McCooey
Elaine Spain

Subjects

Chemistry

Topics
core shell electrochemical properties surface electrode selective oxidation detection high sensitivity gold dna

Electrodeposited gold-copper core-shell nanowires for high sensitivity DNA detection. (2014)

Abstract Gold-Copper core shell nanowires have been electrodeposited and their electrochemical and Raman properties probed. First, hollow copper nanotubes, 3.2 ± 0.1 μm long, with a uniform diameter of 70 ± 22 nm, were electrodeposited within the pores of a track etched polycarbonate membrane filter. Second, gold was then electrodeposited within these copper cylinders to yield the gold-copper core-shell nanowires. Nanowires, functionalised with probe strand DNA, that is complementary to that of the pathogen Staph. Aureus, only on their ends, can be immobilised onto an electrode surface in a DNA sandwich assay. Significantly, the charge associated with the selective oxidation of the copper shell depends linearly on the target DNA concentration from 1 nM to 100 μM.
Collections Ireland -> Dublin City University -> PubMed

Full list of authors on original publication

Robert J. Forster, Tia E. Keyes, Neal Leddy, Heath Bagshaw, Ciaran Dolan, Andrea McCooey, Elaine Spain

Experts in our system

1
Robert J. Forster
Dublin City University
Total Publications: 92
 
2
Tia E. Keyes
Dublin City University
Total Publications: 104
 
3
Elaine Spain
Dublin City University
Total Publications: 15