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PLA and PMMA tobramycin doped (1% and 2.5%) filaments. (A) Top 2.5 wt% tobramycin PLA filament; (B) Top 1 wt% tobramycin PLA; (C) Bottom 2.5 wt% tobramycin PLA filament; (D) Bottom 1 wt% tobramycin PLA filament; (E) Top 1% tobramycin PMMA filament; zone of inhibition diameter = 17.17 mm; F) Bottom 2.5% tobramycin PMMA filament, zone of inhibition diameter = 18.83 mm.
