Switchable glucose-responsive volume phase transition behavior of poly(phenylboronic acid) microgels
作者： Mingming Zhou , Fan Lu , Xiaomei Jiang , Qingshi Wu , Aiping Chang
DOI: 10.1039/C5PY01441G
关键词:
摘要: We develop a class of poly(phenylboronic acid) microgels, which are made 3-aminophenylboronic acid covalently bonded to oligo(ethylene glycol)-based polymers, demonstrate the feasibility on-site tailoring glucose-responsive volume phase transition behavior gels. Different from gels reported previously that typically undergo fixed type (swelling and/or shrinking) behavior, presented microgels can display switchable upon adding glucose: shrinking (at temperature ≤29.0 °C), unresponsive (29.0–33.0 and swelling (≥33.0 °C). The underlying mechanism for such an is possibly associated with competition glucose-induced increase in Donnan potential (favoring swelling; due formation glucose-boronates or glucose-bis-boronates) additional cross-links shrinking; at particular temperature. Accompanied by this tailoring, photoluminescence be tuned “turn-off” (e.g., 25.0 °C) “turn-on” 37.0 glucose, may provide functional basis biosensors prospective biomedical applications.
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