Polycarbonate surface cell's adhesion examination after Nd:YAG laser irradiation

Ramazani, S A Ahmad; Mousavi, Seyyed Abbas; Seyedjafari, Ehsan; Poursalehi, Reza; Sareh, Shohreh; Silakhori, K.; Poorfatollah, Ali Akbar; Shamkhali, Amir Nasser

doi:10.1016/j.msec.2008.11.019

Cited by 25 publications

(19 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nd:YAG is the most popular one, which already used in many studies, especially polymer surface modification. The result confirmed that Nd:YAG laser enhanced the wettability and surface bioactivity after treatment like polypropylene [34], poly ethylene [80] and in some case, it showed that along with improving the wettability after treatment of polycarbonate the surface cell adhesion and proliferation improved, which were some promising result for the surface bioactivation [81]. All of these results and others have shown that Nd:YAG laser has potential as a precise, clean and simple surface modification technique for an extensive range of materials including polymers like PEEK [34].…”

Section: Laser Categories and Basicssupporting

confidence: 58%

PEEK surface modification methods and effect of the laser method on surface properties

2020

Biointerface Res Appl Chem

View full text Add to dashboard Cite

Polyether ether ketone (PEEK) is one the most interesting polymeric materials used in the industry today, such as aerospace, nuclear reactors, polymer electrolyte membranes and especially in biomedical applications like bone implants. PEEK’s desirable properties like mechanical strength, biocompatibility, chemical resistance, radiation resistance and high thermal stability in the body make this suitable polymer choice for a bone implant. Besides these useful properties, PEEK is bio-inert in the biological environment, which is a big problem in implant application. Fortunately, there are several methods to improve the surface bioactivity of such materials. Here surface modification methods of the PEEK, including laser and their effect on the surface bioactivity were studied. Laser techniques are one of the exciting methods for PEEK surface modification because of being a secure processing method, time-consuming, easy to control the laser parameter, which leads to the control of surface properties. Several kinds of laser with different settings is used for the enhancement of the surface of PEEK, were described here. Here different surface modification techniques to enhance the adhesion and wettability of the PEEK surface studied. Along with varying categories of laser were introduced and different laser methods, which used for PEEK surface treatment is collected, that is the exciting point of this review paper.

show abstract

Section: Laser Categories and Basicssupporting

confidence: 58%

PEEK surface modification methods and effect of the laser method on surface properties

2020

Biointerface Res Appl Chem

View full text Add to dashboard Cite

show abstract

“…The evaluation of the cell viability of PC surfaces after LST was conducted by Ramazani et al [66]. A pulsed Nd:YAG laser source (λ = 355 and 1,064 nm, and pulse duration of 10 ns) was used to modify PC substrates.…”

Section: Polycarbonate (Pc)mentioning

confidence: 99%

Laser Surface Texturing of Polymers for Biomedical Applications

et al. 2018

View full text Add to dashboard Cite

Polymers are materials widely used in biomedical science because of their biocompatibility, and good mechanical properties (which, in some cases, are similar to those of human tissues); however, these materials are, in general, chemically and biologically inert. Surface characteristics, such as topography (at the macro-, micro, and nano-scale), surface chemistry, surface energy, charge, or wettability are interrelated properties, and they cooperatively influence the biological performance of materials when used for biomedical applications. They regulate the biological response at the implant/tissue interface (e.g., influencing the cell adhesion, cell orientation, cell motility, etc.). Several surface processing techniques have been explored to modulate these properties for biomedical applications. Despite their potentials, these methods have limitations that prevent their applicability. In this regard, laser-based methods, in particular laser surface texturing (LST), can be an interesting alternative. Different works have showed the potentiality of this technique to control the surface properties of biomedical polymers and enhance their biological performance; however, more research is needed to obtain the desired biological response. This work provides a general overview of the basics and applications of LST for the surface modification of polymers currently used in the clinical practice (e.g., PEEK, UHMWPE, PP, etc.). The modification of roughness, wettability, and their impact on the biological response is addressed to offer new insights on the surface modification of biomedical polymers.

show abstract

“…Previous work has shown that ablation of polystyrene occurs without generation of gaseous products [12]. On the other hand, Nishio and colleagues [23] reported that structural changes on nitrile groups in polyacrylonitrile, such as elimination and cyclization reaction, occur when it is irradiated with UV laser light.…”

Section: Resultsmentioning

confidence: 99%

“…The topographic effect can be achieved by fabricating microstructured surfaces with periodic surface topographies. For instance, surface related properties like wetting behavior, friction, and adhesion of cells and/or bacteria, besides others have been proved to be strongly dependent on the surface topography [9][10][11][12][13]. The fabrication of these micro-and nanostructured surfaces has been realized using different methods which normally require multiple fabrication steps and/or special molds or 2 International Journal of Polymer Science masks featured with the desired structure, such as optical lithography, microcontact printing, and hot embossing.…”

Section: Introductionmentioning

confidence: 99%

Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning

Broglia

Acevedo

Langheinrich

et al. 2015

International Journal of Polymer Science

View full text Add to dashboard Cite

Periodic microstructures in styrene-acrylonitrile (SAN) copolymers are fabricated by two-beam direct laser interference patterning using a nanosecond pulsed laser operating at a wavelength of 266 nm. The SAN copolymers are synthesized using different molar ratios (styrene to acrylonitrile) by a free radical polymerization process. The chemical composition of the copolymers and their properties are determined using Fourier transformed infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). Depending on the composition of the irradiated copolymer films, with weight ratios ranging from 58 to 96.5% of styrene to acrylonitrile, different ablation behaviors are observed. The laser fluence necessary to locally ablate the copolymer is found to be dependent on the copolymer composition. Unlike other dielectric polymers, the laser irradiation produced both direct ablation of the irradiated material and collapse of the surface. It is shown that, by varying the laser fluence and the copolymer composition, the surface structure can be changed from a periodic pattern with a swelled topography to an ablated-like structure. The number of holes does not depend monotonically on the amount of PS or PAN units but shows a more complex behavior which depends on the copolymer composition and the laser fluence.

show abstract

Polycarbonate surface cell's adhesion examination after Nd:YAG laser irradiation

Cited by 25 publications

References 36 publications

PEEK surface modification methods and effect of the laser method on surface properties

PEEK surface modification methods and effect of the laser method on surface properties

Laser Surface Texturing of Polymers for Biomedical Applications

Rapid Fabrication of Periodic Patterns on Poly(styrene-co-acrylonitrile) Surfaces Using Direct Laser Interference Patterning

Contact Info

Product

Resources

About