| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 15643 | Current Opinion in Biotechnology | 2013 | 13 Pages |
The information encoded in the base sequence of DNA provides substantial structural and functional information for the instructive self-assembly of one-dimensional (1D) functional DNA nanostructures. The hybridization chain reaction (HCR) and the formation of HCR-stimulated DNAzyme nanochains are presented, as a means to develop amplified DNA sensors and aptasensors. Similarly, the rolling circle amplification (RCA) process is implemented to generate 1D DNA nanochains consisting of constant repeat units being implemented for the amplified sensing (using DNAzymes as repeat units) and for the switchable control of electron transfer at electrodes. 1D DNA nanostructures are used as templates for the programmed positioning of enzymes that enable the activation of enzyme cascades and the biocatalytic growth of metallic nanowires. The future perspectives of the self-assembly mechanisms are discussed.
Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (371 K)Download as PowerPoint slideHighlights► Hybridization chain reactions for amplified DNA detection and DNA assembly. ► Rolling circle amplification-synthesized DNAzyme chains for amplified DNA detection. ► Bi-enzyme cascades and biocatalytic synthesis of metallic nanowires on DNA templates. ► Self-assembled one-dimensional DNA nanostructures for biocatalytic cascades. ► Programmed assembly of metal nanoparticles on one-dimensional DNA nanostructures.
