Abstract
The reversible and switchable triggered reconfiguration of tetrahedra nanostructures from monomer tetrahedra structures into dimer or trimer structures is introduced. The triggered bridging of monomer tetrahedra by K+-ion-stabilized G-quadruplexes or T-A•T triplexes leads to dimer or trimer tetrahedra structures that are separated by crown ether or basic pH conditions, respectively. The signal-triggered dimerization/trimerization of DNA tetrahedra structures is used to develop multiplexed miRNA-sensing platforms, and the tetrahedra mixture is used for intracellular sensing and imaging of miRNAs.
Original language | English |
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Article number | 2007355 |
Journal | Small |
Volume | 17 |
Issue number | 6 |
DOIs | |
State | Published - 11 Feb 2021 |
Keywords
- DNA nanotechnology
- G-quadruplexes
- fluorescence
- logic gates
- sensors
- triplexes
All Science Journal Classification (ASJC) codes
- General Chemistry
- Engineering (miscellaneous)
- Biotechnology
- General Materials Science
- Biomaterials