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6 March 2014 Laser micromachining and modification of bioabsorbable polymers
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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 (Tg) and melting (Tm) temperatures. CO2 and KrF excimer lasers can be successfully used for cutting and drilling of polylactide.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);


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