Design and Characterization of pH-Triggered DNA Nanoswitches and Nanodevices Based on DNA Triplex Structures

Methods Mol Biol. 2018:1811:79-100. doi: 10.1007/978-1-4939-8582-1_6.

Abstract

Triplex DNA is becoming a very useful domain to design pH-triggered DNA nanoswitches and nanodevices. The high versatility and programmability of triplex DNA interactions allows the integration of pH-controllable modules into DNA-based reactions and self-assembly processes. Here, we describe the procedure to characterize DNA-based triplex nanoswitches and more in general pH-triggered structure-switching mechanisms. Procedures to characterize pH-triggered DNA nanodevices will be useful for many applications in the field of biosensing, drug delivery systems and smart nanomaterials.

Keywords: DNA nanostructures; Nanoswitches; Triple helix; pH switching.

MeSH terms

  • Biosensing Techniques
  • DNA / chemical synthesis*
  • DNA / chemistry
  • Drug Delivery Systems
  • Hydrogen-Ion Concentration
  • Models, Molecular
  • Nanostructures / chemistry*
  • Nanotechnology / instrumentation*
  • Nucleic Acid Conformation

Substances

  • triplex DNA
  • DNA