Ontology highlight
ABSTRACT:
SUBMITTER: Jee E
PROVIDER: S-EPMC4950125 | biostudies-literature | 2016 Feb
REPOSITORIES: biostudies-literature
Jee Elizabeth E Bánsági Tamás T Taylor Annette F AF Pojman John A JA
Angewandte Chemie (Weinheim an der Bergstrasse, Germany) 20160106 6
Chemical systems that remain kinetically dormant until activated have numerous applications in materials science. Herein we present a method for the control of gelation that exploits an inbuilt switch: the increase in pH after an induction period in the urease-catalyzed hydrolysis of urea was used to trigger the base-catalyzed Michael addition of a water-soluble trithiol to a polyethylene glycol diacrylate. The time to gelation (minutes to hours) was either preset through the initial concentrati ...[more]