pH- and thermosensitive supramolecular assembling system: rapidly responsive properties of beta-cyclodextrin-conjugated poly(epsilon-lysine).
beta-Cyclodextrin-conjugated poly(epsilon-lysine) (beta-CDPL) was synthesized as a novel polymeric host for constructing a smart supramolecular assembling system. Systematic studies on the inclusion complexation between the polymeric host with an alpha- or beta-CD cavity and a model guest molecule provided evidence that dual cooperative interactions, specific host-guest interaction and intermolecular ionic interaction, played a dominant role in leading to a fast aggregation phenomenon. In addition, a rapid phase transition induced by the supramolecular assembly was observed reversibly in response to a small change in pH or temperature.
Choi
Hak Soo
HS
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Tatsunokuchi, Ishikawa 923-1292, Japan.
Huh
Kang Moo
KM
Ooya
Tooru
T
Yui
Nobuhiko
N
D040761:Biomimetic Materials / Q000737:chemistry; D003505:Cyclodextrins / Q000737:chemistry*; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D011107:Polylysine / Q000737:chemistry*; D011422:Propionates / Q000737:chemistry; D047392:beta-Cyclodextrins
D003505:Cyclodextrins; D011422:Propionates; D047392:beta-Cyclodextrins; D011107:Polylysine; C031215:betadex