Laser micromachining and modification of bioabsorbable polymers

Bogusz D. Stępak; Arkadiusz J. Antończak; Paweł E. Kozioł; Konrad Szustakiewicz; Krzysztof M. Abramski

doi:10.1117/12.2040583

6 March 2014 Laser micromachining and modification of bioabsorbable polymers

Bogusz D. Stępak, Arkadiusz J. Antończak, Paweł E. Kozioł, Konrad Szustakiewicz, Krzysztof M. Abramski

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Proceedings Volume 8968, Laser-based Micro- and Nanoprocessing VIII; 896809 (2014) https://doi.org/10.1117/12.2040583
Event: SPIE LASE, 2014, San Francisco, California, United States

Abstract

In this research the influence of laser micromachining on physicochemical properties of bioabsorbable polymer was investigated. Poly(l-lactide) (PLLA), commonly used for manufacturing non-permanent biomedical devices, was irradiated with varying fluences by CO₂ laser and by KrF excimer laser. To evaluate modification of the material, several analytical techniques were used: ATR (attenuated total reflection), XPS (X-ray photoelectron spectroscopy) and DSC (differential scanning calorimetry). We found that the laser-affected material has lower glass transition (T_g) and melting (T_m) temperatures. CO₂ and KrF excimer lasers can be successfully used for cutting and drilling of polylactide.

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Bogusz D. Stępak, Bogusz D. Stępak, Arkadiusz J. Antończak, Arkadiusz J. Antończak, Paweł E. Kozioł, Paweł E. Kozioł, Konrad Szustakiewicz, Konrad Szustakiewicz, Krzysztof M. Abramski, Krzysztof M. Abramski, "Laser micromachining and modification of bioabsorbable polymers", Proc. SPIE 8968, Laser-based Micro- and Nanoprocessing VIII, 896809 (6 March 2014); doi: 10.1117/12.2040583; https://doi.org/10.1117/12.2040583

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