24 Biomimetic Functions by Microscopic Molecular Reactions …
423
Fig. 24.15 a A hollow crystal of 7o prepared by sublimation under normal pressure, b A SEM
image of a hollow crystal from top view, c A hollow crystal in SEM chamber before UV irradiation,
d A hollow crystal in SEM chamber after UV irradiation, e A hollow crystal filled with fluorescent
beads, f Scattering of beads upon UV irradiation. Scale bars: 100 µm for a 3.3 µm for b, 20 µm
for (c–f)
prepared a crystalline brush consisting of photochromic bending crystals; the systems
could transfer the object on the surface, following the direction of incident light.
In this system, molecular movement upon photoirradiation cooperatively works to
realize the function of object transport. Finally, we presented the photoresponsive
broken system (i.e., photosalient effect) in which hollow-shaped crystal included
small fluorescent beads scattered the beads upon UV irradiation with breaking the
crystals. Photosalient phenomena were already well known, however, in this study,
we gave a real function to the phenomena.
Acknowledgements We deeply appreciate to Professors M. Irie, H. Miyasaka, M. Morimoto,
K. Tawa, and B. L. Feringa for their collaboration. The present work was supported by JSPS
KAKENHI Grant Number 26107012, Grant-in-Aid for Scientific Research on Innovative Areas
“Photosynergetics.”
423
Fig. 24.15 a A hollow crystal of 7o prepared by sublimation under normal pressure, b A SEM
image of a hollow crystal from top view, c A hollow crystal in SEM chamber before UV irradiation,
d A hollow crystal in SEM chamber after UV irradiation, e A hollow crystal filled with fluorescent
beads, f Scattering of beads upon UV irradiation. Scale bars: 100 µm for a 3.3 µm for b, 20 µm
for (c–f)
prepared a crystalline brush consisting of photochromic bending crystals; the systems
could transfer the object on the surface, following the direction of incident light.
In this system, molecular movement upon photoirradiation cooperatively works to
realize the function of object transport. Finally, we presented the photoresponsive
broken system (i.e., photosalient effect) in which hollow-shaped crystal included
small fluorescent beads scattered the beads upon UV irradiation with breaking the
crystals. Photosalient phenomena were already well known, however, in this study,
we gave a real function to the phenomena.
Acknowledgements We deeply appreciate to Professors M. Irie, H. Miyasaka, M. Morimoto,
K. Tawa, and B. L. Feringa for their collaboration. The present work was supported by JSPS
KAKENHI Grant Number 26107012, Grant-in-Aid for Scientific Research on Innovative Areas
“Photosynergetics.”