AI Article Synopsis
- DNA self-assembly allows for the precise creation of nanoarchitectures that, when combined with nanomaterials, have various practical applications.
- This research proposes a method to cut single-walled carbon nanotubes (SWNTs) to specific lengths using DNA origami and G-quadruplex complexes, enhancing their utility.
- The process improves SWNT dispersibility in water, boosts biological activation of hydrogen peroxide, and enables accurate placement for size control, opening new avenues in nanoelectronics, nanomedicine, and more.
Article Abstract
DNA self-assembly has enabled the programmable fabrication of nanoarchitectures, and these nanoarchitectures combined with nanomaterials have provided several applications. Here, we develop an approach for cutting single-walled carbon nanotubes (SWNTs) of predetermined lengths, using DNA origami and G-quadruplex hybrid complexes. This approach is based on features of DNA: (1) wrapping SWNTs with DNA to improve the dispersibility of SWNTs in water; (2) using G-quadruplex DNA to confine hemin in close proximity to SWNTs and enhance the biological activation of hydrogen peroxide by hemin; and (3) forming DNA origami platforms to allow for the precise placement of G-quadruplexes, enabling size control. These integrated features of DNA allow for temporally efficient cutting of SWNTs into desired lengths, thus expanding the availability of SWNTs for applications in the fields of nanoelectronics, nanomedicine, nanomaterials, and quantum physics, as well as in fundamental studies.
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| http://dx.doi.org/10.1021/acsnano.8b02720 | DOI Listing |
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