4_05/2008Cover Picture: Small 5/2008

The cover picture shows carbon nanotubes (CNTs) with an assembly of quantum dot and dendrimer multilayers, generating a graded bandgap structure, obtained by using three types of ZnxCd(1-x)Se alloy quantum dots with luminescence maxima at λ = 561 nm (green), 594 nm (orange), and 614 nm (red). Probe DNA immobilization and target DNA hybridization inside the CNTs then follows. For more information, please read the Communication “Functional Quantum-Dot/Dendrimer Nanotubes for Sensitive Detection of DNA Hybridization” by W. Knoll et al. beginning on page 566.

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