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Photograph and SEM of 2.5 wt% methotrexate PLA filament.
Notes: (A) 2.5 wt% methotrexate PLA filament. (B) SEM of 2.5 wt% methotrexate PLA filament showing embedded methotrexate.
Abbreviations: PLA, polylactic acid; SEM, scanning electron micrograph.
