Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2016 Jun 15;8(6):233. doi: 10.3390/polym8060233

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2016 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

(a) Chemical composition of System II hydrogels in different pH states; (b) variation of the volume degree of swelling for different compositions of hydrogels; (c) optical micrographs showing the change in diameter of D₅A₅ hydrogels at pH 2.6, 5.7 and 9.6.

(a) Chemical composition of System II hydrogels in different pH states; (b) variation of the volume degree of swelling for different compositions of hydrogels; (c) optical micrographs showing the change in diameter of D₅A₅ hydrogels at pH 2.6, 5.7 and 9.6.