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. Author manuscript; available in PMC: 2016 Sep 15.
Published in final edited form as: Acta Biomater. 2015 Jun 15;24:309–321. doi: 10.1016/j.actbio.2015.06.012

Figure 2.

Figure 2

Drug released and evolution of color classes as a function of time in HBSS at 37 °C for the 2.17-cov-DEX particle. The green color component slowly fades while the violet component slowly increases. Each color class is normalized such that the total color in all channels sums to 100% for each time point. Each error bar is constructed using 1 standard error from the mean. Bottom images show the camera images obtained at the indicated time points. Samples are in a petri dish and imaged against a solid black background.