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

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

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