Surface properties of a laser-treated biopolymer

Michaljaničová, I.; Slepička, Petr; Rimpelová, Silvie; Sajdl, Petr; Švorčı́k, Václav

doi:10.17222/mit.2014.260

Cited by 2 publications

(1 citation statement)

References 8 publications

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“…The results obtained show a positive effect of UV radiation on the increase in cell viability, although the laser beam must not be too intense. With too much energy density, the process of cell adhesion to the substrate is significantly inhibited [ 30 ].…”

Section: Discussionmentioning

confidence: 99%

Surface Modification of PLLA, PTFE and PVDF with Extreme Ultraviolet (EUV) to Enhance Cell Adhesion

Lech

Butruk-Raszeja

Ciach

et al. 2020

IJMS

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Recently, extreme ultraviolet (EUV) radiation has been increasingly used to modify polymers. Properties such as the extremely short absorption lengths in polymers and the very strong interaction of EUV photons with materials may play a key role in achieving new biomaterials. The purpose of the study was to examine the impact of EUV radiation on cell adhesion to the surface of modified polymers that are widely used in medicine: poly(tetrafluoroethylene) (PTFE), poly (vinylidene fluoride) (PVDF), and poly-L-(lactic acid) (PLLA). After EUV surface modification, which has been performed using a home-made laboratory system, changes in surface wettability, morphology, chemical composition and cell adhesion polymers were analyzed. For each of the three polymers, the EUV radiation differently effects the process of endothelial cell adhesion, dependent of the parameters applied in the modification process. In the case of PVDF and PTFE, higher cell number and cellular coverage were obtained after EUV radiation with oxygen. In the case of PLLA, better results were obtained for EUV modification with nitrogen. For all three polymers tested, significant improvements in endothelial cell adhesion after EUV modification have been demonstrated.

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Section: Discussionmentioning

confidence: 99%

Surface Modification of PLLA, PTFE and PVDF with Extreme Ultraviolet (EUV) to Enhance Cell Adhesion

Lech

Butruk-Raszeja

Ciach

et al. 2020

IJMS

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Surface Property Modification of Collagen, Hyaluronic Acid, and Chitosan Films with the Neodymium Laser

Grabska-Zielińska

Sionkowska

2022

Polysaccharides

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In this paper, surfaces of thin films prepared from blends of collagen, hyaluronic acid, and chitosan and modified by neodymium laser radiation were researched. To evaluate the laser beam effect on the surface structure, scanning electron microscopy (SEM) imaging and infrared spectroscopy (FTIR-ATR) were employed. The results demonstrated that during laser treatment the specimens lost water due to the evaporation process. SEM images revealed some changes in the biopolymer films structure. After laser treatment, the micro-foam formation was observed on the biopolymeric films. The micro-foaming in films based on ternary blends was more extensive than in those made of a single biopolymer. The results of this study indicate that collagen, hyaluronic acid, and chitosan materials can be modified with laser treatment. Such treatment can be used for material modification for potential biomedical purposes.

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Surface properties of a laser-treated biopolymer

Cited by 2 publications

References 8 publications

Surface Modification of PLLA, PTFE and PVDF with Extreme Ultraviolet (EUV) to Enhance Cell Adhesion

Surface Modification of PLLA, PTFE and PVDF with Extreme Ultraviolet (EUV) to Enhance Cell Adhesion

Surface Property Modification of Collagen, Hyaluronic Acid, and Chitosan Films with the Neodymium Laser

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