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. Author manuscript; available in PMC: 2014 Aug 7.
Published in final edited form as: J Mater Chem B. 2013 Jun 3;1(29):3578–3587. doi: 10.1039/C3TB20277A

Fig. 5.

Fig. 5

Comparison of color changes of bromocresol green (BG5) and bromothymol blue (BB7) in PBS buffer at various pH values (A). Comparison of color changes of BG5 and BB7 doped with 25 wt% DBHD/N2O2 and 10 wt% of 5050DLG1A PLGA in plasticized PVC polymer matrix (B). Comparison of color changes of BG5 and BB7 doped with 25 wt% DBHD/N2O2 and 10 wt% of 5050DLG7E PLGA in plasticized PVC polymer matrix (C). All films were incubated at 37°C for 14 d in PBS buffer.