Abstract
The attachment of fullerenes to a DNA motif significantly improves the molecular switching and stability of pH driven enthalpic molecular machine has been reported. DNA is considered as a versatile building block for molecular machines because of its well defined structure and controllable intermolecular interactions. The pH-induced transformation of the DNA was confirmed by Circular Dichroism (CD) spectroscopy and changes occurring in DNA motif were analyzed using three-dimensional molecular analysis by Small Angle X-ray Scattering (SAXS). Hydrophobic interactions between the terminal fullerenes in the folded i-motif conformation increased the machines power stroke and force generated. No reduction in cycling speed or cycling stability with changing pH was observed as a result of attachment of the fullerene.
Original language | English |
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Pages (from-to) | 1907-1910 |
Number of pages | 4 |
Journal | Advanced Materials |
Volume | 21 |
Issue number | 19 |
DOIs | |
Publication status | Published - 2009 May 18 |
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering