PLGA:CNF material characteristics. (A) Percentage weight loss for 100:0, 75:25, 50:50, 27:75, and 0:100 sample ratios (PLGA:CNF [wt%:wt%]) and an etched glass coverslip incubated in phosphate-buffered solution under standard incubation conditions. (B) pH variation with incubation time for 100:0, 75:25, 50:50, 27:75, and 0:100 sample ratios (PLGA:CNF [wt%:wt%]) and an etched glass cover slip incubated in phosphate-buffered solution under standard incubation conditions.
Notes: Values are shown as the mean ± standard deviation; n = 3. +P < 0.05 versus PLGA on respective days; #P < 0.05 versus all composites on respective days; **P < 0.05 versus 75:25 on respective day; $P < 0.05 versus 50:50 on respective days, and &P < 0.05 versus 25:75 on respective days.
Abbreviations: CNF, carbon nanofibers; PLGA, poly(lactic-co-glycolic-acid); PBS, phosphate-buffered solution.