Efficient infrared-emitting PbS quantum dots grown on DNA and stable in aqueous solution and blood plasma

Larissa Levina*, Vlad Sukhovatkin, Sergei Musikhin, Sam Cauchi, Rozalia Nisman, David P. Bazett-Jones, Edward H. Sargent

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

118 Scopus citations

Abstract

The growth of efficient infrared photoluminescent quantum dots directly on a DNA template was studied. The synthesis began with heating the DNA solution for 20 min under nitrogen at temperatures ranging in experiments from 20 to 100°C. Dark-field transmission electron microscopy (TEM) was carried out on a sample synthesized with highly polymerized, calf-thymus DNA and subsequently dried onto a carbon grid. The results show that the materials have high photoluminescence quantum efficiencies in aqueous solution and are stable in plasma at body temperature for over one week.

Original languageEnglish (US)
Pages (from-to)1854-1857
Number of pages4
JournalAdvanced Materials
Volume17
Issue number15
DOIs
StatePublished - Aug 4 2005

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering

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