Surface Modification of Biopolymers by Argon Plasma and Thermal Treatment

Slepička, Petr; Trostová, Simona; Kasálková, Nikola Slepičková; Kolská, Zdeňka; Sajdl, Petr; Švorčı́k, Václav

doi:10.1002/ppap.201100126

Cited by 92 publications

(54 citation statements)

References 33 publications

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“…With an increasing aging time, the surface polarity was spontaneously reduced. The increase in CA of the polymer surface and decrease in wettability may be caused by the reorientation of polar groups into the polymer bulk [78]. The dependence of the WCA and surface-free energy on exposure time at different discharge powers was determined on plasma-modified PHBV.…”

Section: Inert Plasma Treatment and Wettability Of Modified Polymersmentioning

confidence: 99%

Wettability and Other Surface Properties of Modified Polymers

Kasálková¹,

Slepička²,

Kolská³

et al. 2015

Wetting and Wettability

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Surface wettability is one of the crucial characteristics for determining of a material's use in specific application. Determination of wettability is based on the measurement of the material surface contact angle. Contact angle is the main parameter that characterizes the drop shape on the solid surface and is also one of the directly measurable properties of the phase interface. In this chapter, the wettability and its related properties of pristine and modified polymer foils will be described. The wettability depends on surface roughness and chemical composition. Changes of these parameters can adjust the values of contact angle and, therefore, wettability. In the case of pristine polymer materials, their wettability is unsuitable for a wide range of applications (such as tissue engineering, printing, and coating). Polymer surfaces can easily be modified by, e.g., plasma discharge, whereas the bulk properties remain unchanged. This modification leads to oxidation of the treated layer and creation of new chemical groups that mainly contain oxygen. Immediately after plasma treatment, the values of the contact angles of the modified polymer significantly decrease.In the case of a specific polymer, the strongly hydrophilic surface is created and leads to total spreading of the water drop. Wettability is strongly dependent on time from modification.Wettability plays a key role, e.g., in the development of biomaterials in tissue engineering and regenerative medicine. Biocompatibility tests of the cell adhesion, proliferation and viability are performed in an aqueous medium, and it is necessary to control the surface wettability. Various cell types have different requirements on surface properties, but while maintaining suitable parameters, the optimal value of © 2015 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.water contact angle for cell adhesion is in the interval of 50-70°. In the case of polymers, which have usually higher values of contact angles, the decrease in water contact angle and adjustment of the surface may be accomplished by introducing selected chemical groups (by plasma treatment), chemical compounds (by grafting, i.e., chemical bath deposition), or nanoparticles. In the case of grafting of polyethylene glycol (PEG) on the plasma activated high-density polyethylene was under "properly" selected conditions of modification (molecular weight of PEG, concentration of PEG in solution) prepared layers that positively influenced the cell adhesion. In addition, low concentration of gold nanoparticles increased the number of adhered cells without decreasing cell viability.Whether the surface of the polymeric substrate is attractive for the adhesion and proliferation of cells is determined not only by wettability but also by a range of other surface properties...

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Section: Inert Plasma Treatment and Wettability Of Modified Polymersmentioning

confidence: 99%

Wettability and Other Surface Properties of Modified Polymers

Kasálková¹,

Slepička²,

Kolská³

et al. 2015

Wetting and Wettability

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show abstract

“…Also other methods for ripple nanopatterning have been proposed recently, which are based on the combination of plasma treatment, metallization and subsequent heating [10][11][12]. Polystyrene is a thermoplastic polymer widely used in many technological fields, such as micro-electronics, LOC (lab-on-chip) devices, membranes and scaffolds for cell cultivation [13].…”

mentioning

confidence: 99%

Ripple polystyrene nano-pattern induced by KrF laser

Slepička¹,

Neděla²,

Siegel³

et al. 2014

Express Polym. Lett.

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“…It is a well-studied fact that plasma treated surfaces have a benign effect on the adhesion, proliferation and differentiation of certain cell-types [10,17,39,53]. But as the introduced chemistry is rather limited, plasma treatment as such is confined in its potential as a biomaterial surface modification technique.…”

Section: Plasma Treatment and Etchingmentioning

confidence: 99%

“…The parallel occurrence of these two phenomena therefore prevents the 'unlimited' incorporation of functional groups. After a period of increasing functional group density, a dynamic equilibrium will be reached between the two processes or the etching process might even reduce the plasma treatment efficiency, depending on the substrate used [53].…”

Section: Plasma Treatment and Etchingmentioning

confidence: 99%

Non-thermal plasma assisted lithography for biomedical applications: an overview

Cools

Morent

2016

IJNT

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Plasma assisted surface patterning is becoming a well-established technique that introduces both alternating surface texture and chemistry on substrates for biomedical applications. This review consists of an overview on the developments in this field over the last 15 years. Special attention is given to the different kinds of chemistry that can be introduced and their effect on the surface-cell interaction, as well as their feasibility for possible applications in the field of regenerative medicine.

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Surface Modification of Biopolymers by Argon Plasma and Thermal Treatment

Cited by 92 publications

References 33 publications

Wettability and Other Surface Properties of Modified Polymers

Wettability and Other Surface Properties of Modified Polymers

Ripple polystyrene nano-pattern induced by KrF laser

Non-thermal plasma assisted lithography for biomedical applications: an overview

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