Dramatically Promoted Swelling of a Hydrogel by Pillar[6]arene-Ferrocene Complexation with Multistimuli Responsiveness.
J Am Chem Soc
; 138(20): 6643-9, 2016 05 25.
Article
en En
| MEDLINE
| ID: mdl-27159331
ABSTRACT
The swelling-shrinking transition of hydrogels is crucial for their wide applications such as actuators and drug delivery. We hereby fabricated a smart hydrogel with ferrocene groups on pendant of polymer networks. While it was immersed in the water-soluble pillar[6]arene (WP6) aqueous solution, the hydrogel was dramatically swollen, which was an approximately 11-fold promotion in weight compared with that in pure water, due to the formation of the inclusion complexes between WP6 and ferrocene groups in the hydrogel. In particular, the well-swollen hydrogel exhibited good responsiveness to multistimuli including temperature, pH, redox, and competitive guests by tuning the dissociation/formation of WP6-ferrocene inclusion complexes or the strength of their charges. Meanwhile, potential application of such a smart hydrogel in pH-responsive drug release was demonstrated as well.
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Compuestos Ferrosos
/
Hidrogeles
/
Metalocenos
/
Compuestos de Amonio Cuaternario
Idioma:
En
Revista:
J Am Chem Soc
Año:
2016
Tipo del documento:
Article
País de afiliación:
China