Size-controlled fabrication of polydiacetylene-embedded microfibers on a microfluidic chip.
Macromol Rapid Commun
; 33(15): 1256-61, 2012 Aug 14.
Article
em En
| MEDLINE
| ID: mdl-22528762
ABSTRACT
A microfluidic technique was employed to fabricate polydiacetylene (PDA)-embedded hydrogel microfibers. By taking advantage of calcium ion-induced insoluble hydrogel formation, supramolecularly assembled diacetylene (DA)-surfactant complexes were successfully immobilized in the calcium alginate fibers. Thus, instantaneous microfiber formation was observed when the core flow of DA supramolecules-containing alginate solution met the sheath flow of calcium ions. UV irradiation of the resulting fibers afforded blue colored PDAs, and the formation of a conjugated polymer was confirmed by heat-induced phase transition and by Raman spectroscopy. By adjusting the core and sheath flow rates, PDA-embedded hydrogel fibers of various sizes were obtained.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Técnicas Analíticas Microfluídicas
/
Poli-Inos
Idioma:
En
Revista:
Macromol Rapid Commun
Ano de publicação:
2012
Tipo de documento:
Article