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Retention analysis of IR Dye 800 CW within TPU matrix. 6.35 ± 5.08% of the IR Dye 800 CW was released from the polymer over 23 days. Inset is the same data with axis adjusted for clarity. The majority of the dye released as a burst within the first five days (5.40%) followed my minimal leaching throughout the duration of the study. Error bars represents standard deviations (n=8).
