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Ultrafast laser-induced surface structuring of anti-fouling steel surfaces for biomedical applications

Cholkar, Abhijit orcid logoORCID: 0000-0003-4608-3203, McCann, Ronan orcid logoORCID: 0000-0002-2071-0785, Kinahan, David J. orcid logoORCID: 0000-0003-1968-2016 and Brabazon, Dermot orcid logoORCID: 0000-0003-3214-6381 (2022) Ultrafast laser-induced surface structuring of anti-fouling steel surfaces for biomedical applications. In: 17th International Manufacturing Science and Engineering Conference, 27 June - 1 July 2022, West Lafayette, IN, USA. ISBN 978-0-7918-8580-2

Metallic surfaces are increasingly used in medical applications due to their favorable material properties such as high strength and biocompatibility. In medical applications antifouling properties are an important requirement especially for implants and medical devices which come into contact with different types of fluid streams. These should be anti-fouling in order to prevent contamination and corrosion. Laser processing methods such as ultrafast laser processing is a one-step and scalable process for surface texturing. This process can be used to produce well-defined surface nano- and microscale superficial textures such as Laser-induced Periodic Surface Structures (LIPSS) which can enhance the anti-fouling capability of the surface. In this study, micro and nano scaled LIPSS structures are manufactured on a biocompatible grade stainless steel 316L substrate using an ultrafast (<370 fs) and low power (<4 W) laser system. With an aim to optimize the anti-fouling properties, laser process parameters such as pulse energy, pulse repetition rate and beam scanning speed were varied to produce microstructures on the stainless-steel surface of varying dimensions. Surface roughness was analyzed using a laser surface profilometer and changes in the hydrophobicity were examined using water contact angle goniometry.
Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Additional Information:Paper number: 85802
Uncontrolled Keywords:laser processing; ultrafast; antifouling; micro-scale texture; femtosecond laser processing; biomedical; stainless steel; surface structuring
Subjects:Engineering > Materials
Engineering > Mechanical engineering
Engineering > Biomedical engineering
Physical Sciences > Lasers
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Institutes and Centres > National Centre for Plasma Science and Technology (NCPST)
Research Institutes and Centres > National Centre for Sensor Research (NCSR)
Research Institutes and Centres > Advanced Processing Technology Research Centre (APTRC)
Research Institutes and Centres > I-Form
Research Institutes and Centres > Water Institute
Published in: Proceedings of the ASME 2022. 1. American Society of Mechanical Engineers. ISBN 978-0-7918-8580-2
Publisher:American Society of Mechanical Engineers
Official URL:https://doi.org/10.1115/MSEC2022-85249
Copyright Information:© 2022 ASME
ID Code:29287
Deposited On:15 Dec 2023 13:26 by Abhijit Suhas Cholkar . Last Modified 15 Dec 2023 13:26

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