Tailoring surface nanostructures on polyaryletherketones for load-bearing implants

Urwyler, Prabitha; Zhao, Xue; Pascual, Alfons; Schift, Helmut; Mueller, Bert (2014). Tailoring surface nanostructures on polyaryletherketones for load-bearing implants. European Journal of Nanomedicine, 61(1), pp. 37-46. De Gruyter 10.1515/ejnm-2014-0006

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High-performance thermoplastics including polyetheretherketone (PEEK) are key biomaterials for load-bearing implants. Plasma treatment of implants surfaces has been shown to chemically activate its surface, which is a prerequisite to achieve proper cell attachment. Oxygen plasma treatment of PEEK films results in very reproducible surface nanostructures and has been reported in the literature. Our goal is to apply the plasma treatment to another promising polymer, polyetherketoneketone (PEKK), and compare its characteristics to the ones of PEEK. Oxygen plasma treatments of plasma powers between 25 and 150 W were applied on 60 μm-thick PEKK and 100 μm-thick PEEK films. Analysis of the nanostructures by atomic force microscopy showed that the roughness increased and island density decreased with plasma power for both PEKK and PEEK films correlating with contact angle values without affecting bulk properties of the used films. Thermal analysis of the plasma-treated films shows that the plasma treatment does not change the bulk properties of the PEKK and PEEK films.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > ARTORG Center for Biomedical Engineering Research > ARTORG Center - Gerontechnology and Rehabilitation

UniBE Contributor:

Urwyler-Harischandra, Prabitha

Subjects:

500 Science
500 Science > 570 Life sciences; biology
600 Technology > 610 Medicine & health
600 Technology > 620 Engineering

ISSN:

1662-5986

Publisher:

De Gruyter

Language:

English

Submitter:

Prabitha Urwyler-Harischandra

Date Deposited:

06 Oct 2014 15:37

Last Modified:

17 Jul 2015 09:44

Publisher DOI:

10.1515/ejnm-2014-0006

Uncontrolled Keywords:

Polyetheretherketone (PEEK), polyetherketoneketone (PEKK), oxygen plasma treatment, atomic force microscopy, differential scanning calorimetry

BORIS DOI:

10.7892/boris.48932

URI:

https://boris.unibe.ch/id/eprint/48932

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