Laser surface modification of polyethersulfone films: effect of laser wavelength on biocompatibility

Pazokian, Hedieh; Mollabashi, Mahmoud; Jelvani, S.; Barzin, Jalal

doi:10.1088/1742-6596/414/1/012022

Cited by 2 publications

(1 citation statement)

References 19 publications

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“…The pulse duration effect has also been studied with reported structures appearing with pulses in the ns, ps and fs regime [385,388,389]. Furthermore, it has been reported that their shape also varies depending on the wavelength of the incident pulses as well as the incidence angle [387,390]. The formation of such structures has been exploited to tailor a variety of material properties derived from surface topography.…”

Section: Microspikes and Hierarchical Structuresmentioning

confidence: 99%

Laser engineering of biomimetic surfaces

Stratakis

Bonse

Heitz

et al. 2020

Materials Science and Engineering: R: Reports

229

143

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The exciting properties of micro-and nano-patterned surfaces found in natural species hide a virtually endless potential of technological ideas, opening new opportunities for innovation and exploitation in materials science and engineering. Due to the diversity of biomimetic surface functionalities, inspirations from natural surfaces are interesting for a broad range of applications in engineering, including phenomena of adhesion, friction, wear, lubrication, wetting phenomena, self-cleaning, antifouling, antibacterial phenomena, thermoregulation and optics. Lasers are increasingly proving to be promising tools for the precise and controlled structuring of materials at micro-and nano-scales. When ultrashort-pulsed lasers are used, the optimal interplay between laser and material parameters enables structuring down to the nanometer scale. Besides this, a unique aspect of laser processing technology is the possibility for material modifications at multiple (hierarchical) length scales, leading to the complex biomimetic micro-and nano-scale patterns, while adding a new dimension to structure optimization. This article reviews the current state of the art of laser processing methodologies, which are being used for the fabrication of bioinspired artificial surfaces to realize extraordinary wetting, optical, mechanical, and biological-active properties for numerous applications. The innovative aspect of laser functionalized biomimetic surfaces for a wide variety of current and future applications is particularly demonstrated and discussed. The article concludes with illustrating the wealth of arising possibilities and the number of new laser micro/nano fabrication approaches for obtaining complex high-resolution features, which prescribe a future where control of structures and subsequent functionalities are beyond our current imagination.

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