2020
DOI: 10.1002/sia.6824
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Ablation thresholds and morphological changes of poly‐l‐lactic acid for pulse durations in the femtosecond‐to‐picosecond regime

Abstract: Biodegradable polymers such as poly‐l‐lactic acid (PLLA) are essential tools for a wide range of medical applications because of their mechanical robustness and bio‐affinity. Laser processing is commonly used to construct various structures from biodegradable polymers. However, in general, polymers deteriorate rapidly owing to laser‐induced heating effects. In this study, we investigate the optimum irradiation conditions for PLLA processing, using an ultrafast laser and finely controlling the pulse duration ov… Show more

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