DNA-Carbon Nanotube Complexation Affinity and Photoluminescence Modulation Are Independent.

ABSTRACT: Short single-stranded DNA (ssDNA) has emerged as the natural polymer of choice for noncovalently functionalizing photoluminescent single-walled carbon nanotubes. In addition, specific empirically identified DNA sequences can be used to separate single species (chiralities) of nanotubes, with an exceptionally high purity. Currently, only limited general principles exist for designing DNA-nanotube hybrids amenable to separation processes, due in part to an incomplete understanding of the fundamental interactions between a DNA sequence and a specific nanotube structure, whereas even less is known in the design of nanotube-based sensors with determined optical properties. We therefore developed a combined experimental and analysis platform on the basis of time-resolved near-infrared fluorescen

SUBMITTER: Jena PV 

PROVIDER: S-EPMC5839148 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature