1. Photoreconfigurable Supramolecular Nanotube
J. Am. Chem. Soc. 2013, 135, –11512
Photoreconfigurable Supramolecular Nanotube
Toshihiro Sendai, Shuvendu Biswas, and Takuzo Aida*
Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo
Riken Center for Emergent Matter Science

2. Nanotubular Assembly <Light-controllable nanotubular assembly>
T. Shimizu et al. Chem. Rev., 2005, 105, 1401.
<Light-controllable nanotubular assembly> UV UV
Vis.
Q. Yan et al. Chem. Commun., 2011, 47, 9594.

3. Photoreconfigurable Nanotubular Assembly
<GroEL>

4. Mg2+-assisted Nanotubular Assembly
After UV
After Vis.
Vis.
+EDTA
No change
Why ?
S. Biswas et al. JACS, 2009, 131, 7556.

5. Photogenerated radical species of MC
S. Pervaiz et al. Free Radical Biol. Med., 1992, 12, 207.

6. Protein-protein cross-linkage based on radicals
E. Stadtman et al. Amino Acids, 2003, 25, 207.

7. Photoreconfigurable Nanotubular Assembly
+ DTT (dithiothreitol)
(radical scavenger)

8. Photoreconfigurable Nanotubular Assembly

9. Photoreconfigurable Nanotubular Assembly
(SCE)
(DLS)

10. Photoreconfigurable Nanotubular Assembly
UV (15 min)
Vis. (15 min)
2nd UV (15 min)
Reference
(GroELsp)

11. Photoreconfigurable Nanotubular Assembly

12. Conclusion
First demonstration on the photoreconfigurable nature of bionanotube