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. Author manuscript; available in PMC: 2016 Apr 18.
Published in final edited form as: Expert Opin Drug Deliv. 2015 Mar 26;12(9):1459–1473. doi: 10.1517/17425247.2015.1018175

Figure 5.

Figure 5

Targeting intestinal inflammation for IBD therapy using polymer engineering. (A) Thioketal linkages that are ROS-sensitive were incorporated into a polymer, causing the polymer to degrade in the presence of ROS. (B) Since inflammatory sites have elevated ROS levels, the NPs preferentially degrade and cause targeted release of the NP payload at sites of IBD. Reproduced with permission from [128].