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Two‐Photon‐Responsive Supramolecular Hydrogel for Controlling Materials Motion in Micrometer Space
Author(s) -
Yoshii Tatsuyuki,
Ikeda Masato,
Hamachi Itaru
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201404158
Subject(s) - supramolecular chemistry , two photon excitation microscopy , brownian motion , nanotechnology , micrometer , excitation , materials science , chemistry , biophysics , physics , optics , molecule , biology , organic chemistry , quantum mechanics
Spatiotemporal control of fluidity inside a soft matrix by external stimuli allows real‐time manipulation of nano/micromaterials. In this study, we report a two‐photon‐responsive peptide‐based supramolecular hydrogel, the fluidity of which was dramatically controlled with high spatial resolution (10 μm×10 μm×10 μm). The off–on switching of the Brownian motion of nanobeads and chemotaxis of bacteria by two‐photon excitation was successfully demonstrated.