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Quenching of CdSe quantum dot emission, a new approach for biosensing

L.Dyadyushab, H.Yinb, S.Jaiswalc, T.Brownd, J.J.Baumbergc, F.P.Booye and T.Melvinab


a. Optoelectronics Research Centre, University of Southampton, UK
b. School of Electronics and Computer Science, University of Southampton, UK
c. School of Physics and Astronomy, University of Southampton, UK
d. School of Chemistry, University of Southampton, UK
e. Wolfson Laboratory, Imperial College, University of London, Exhibition Road, London, UK SW7 2AZ

Abstract

The emission of CdSe quantum dots linked to the 5'-end of a DNA sequence is efficiently quenched by hybridisation with a complementary DNA strand with a gold nanoparticle attached at the 3'-end; contact of the quantum dot and gold nanoparticle occurs.


Chemical Communications (2005) Vol.25 pp.3201-3203

doi: 10.1039/b500664c

Southampton ePrint id: 20783

 

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