Journal
POLYMER
Volume 50, Issue 22, Pages 5205-5210Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2009.09.040
Keywords
pH-sensitive; Polymeric hydrogel; Poly(beta-amino ester)
Categories
Funding
- MEST
- NRF [20090093631]
Ask authors/readers for more resources
A series of novel pH-sensitive triblock copolymers composed of poly(beta-amino ester)-poly(ethylene glycol)-poly(beta-amino ester) (PAE-PEG-PAE) were synthesized by conjugating poly(beta-amino ester) to poly(ethylene glycol). The resulting polymers were characterized by H-1 and C-13 NMR in CDCl3 and get permeation chromatography in tetrahydrofuran. The concentrated polymer solutions (30 wt%) exhibited a gel-to-sol transition in the pH range 6.4-7.8. The gel window spanned physiological conditions (37 degrees C, pH 7.4). After injection into a rat, the copolymer solution (30 wt%) changed to a gel in a short time. This copolymer hydrogel showed bioadhesive properties and in vitro release of lidocaine was controllable. (C) 2009 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available