The authors thank Sean Hinds for his assistance in acquiring the dark-field TEM image shown in Figure 1a.
Efficient Infrared-Emitting PbS Quantum Dots Grown on DNA and Stable in Aqueous Solution and Blood Plasma†
Article first published online: 21 JUL 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 17, Issue 15, pages 1854–1857, August, 2005
How to Cite
Levina, L., Sukhovatkin, V., Musikhin, S., Cauchi, S., Nisman, R., Bazett-Jones, D. P. and Sargent, E. H. (2005), Efficient Infrared-Emitting PbS Quantum Dots Grown on DNA and Stable in Aqueous Solution and Blood Plasma. Adv. Mater., 17: 1854–1857. doi: 10.1002/adma.200401197
- Issue published online: 21 JUL 2005
- Article first published online: 21 JUL 2005
- Manuscript Accepted: 4 MAY 2005
- Manuscript Received: 27 JUL 2004
- Lead sulfide;
- Nanocrystals, semiconductor;
- Quantum efficiency
The synthesis of efficient photoluminescent quantum dots via growth on a DNA template is reported for the first time. The nanoparticles emit in the second biological window of 1050–1200 nm with quantum efficiencies of 11.5 ± 1 % in aqueous solution, and are stable for over a week in blood plasma at 37 °C. The Figure shows an energy-filtered TEM image of PbS nanocrystals (Pb: orange; P in DNA: green).