Thin Film Plasma Functionalization of Polyethylene Terephthalate to Induce Bone-Like Hydroxyapatite Nanocrystals

Gashti, Mazeyar Parvinzadeh; Hegemann, Dirk; Stir, M.; Hulliger, Jürg

doi:10.1002/ppap.201300100

Cited by 42 publications

(24 citation statements)

References 56 publications

(90 reference statements)

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“…The RMS for argon and argon–oxygen plasma treated samples ( Figure 2 b,c) were 31.54 and 27.76 nm, respectively. An increase in the surface roughness of nanofibers after plasma treatment can be attributed to the bombardment of energetic particles, including electrons, ions, radicals, neutrals and excited atoms/molecules [ 21 , 22 , 23 ]. Argon–oxygen plasma can result in chemical etching by bond breakage, chain scission, chemical degradation and surface oxidation, while argon plasma is an inert process and can physically etch nanofibers by removal of low molecular weight fragments [ 23 , 24 , 25 ].…”

Section: Resultsmentioning

confidence: 99%

“…Our group previously investigated the moisture absorption of polyester fibers after air plasma treatment. Results postulated that air plasma increased the moisture absorption from 4.4% to 6.2% due to generation of polar groups on the fiber surfaces [ 21 , 22 , 23 , 24 , 25 ].…”

Section: Resultsmentioning

confidence: 99%

“…One of the most available approaches to modify the surface of polymers and fibers is the plasma activation method [ 21 , 22 , 23 , 24 , 25 ]. Many research works have focused on this process to increase the interaction of polymers with different materials.…”

Section: Introductionmentioning

confidence: 99%

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Argon and Argon–Oxygen Plasma Surface Modification of Gelatin Nanofibers for Tissue Engineering Applications

Mozaffari

Gashti²,

Mirjalili

et al. 2021

Membranes

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In the present study, we developed a novel approach for functionalization of gelatin nanofibers using the plasma method for tissue engineering applications. For this purpose, tannic acid-crosslinked gelatin nanofibers were fabricated with electrospinning, followed by treatment with argon and argon–oxygen plasmas in a vacuum chamber. Samples were evaluated by using scanning electron microscopy (SEM), atomic force microscopy (AFM), attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroscopy, contact angle (CA) and X-ray diffraction (XRD). The biological activity of plasma treated gelatin nanofibers were further investigated by using fibroblasts as cell models. SEM studies showed that the average diameter and the surface morphology of nanofibers did not change after plasma treatment. However, the mean surface roughness (RMS) of samples were increased due to plasma activation. ATR-FTIR spectroscopy demonstrated several new bands on plasma treated fibers related to the plasma ionization of nanofibers. The CA test results stated that the surface of nanofibers became completely hydrophilic after argon–oxygen plasma treatment. Finally, increasing the polarity of crosslinked gelatin after plasma treatment resulted in an increase of the number of fibroblast cells. Overall, results expressed that our developed method could open new insights into the application of the plasma process for functionalization of biomedical scaffolds. Moreover, the cooperative interplay between gelatin biomaterials and argon/argon–oxygen plasmas discovered a key composition showing promising biocompatibility towards biological cells. Therefore, we strongly recommend plasma surface modification of nanofiber scaffolds as a pretreatment process for tissue engineering applications.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Argon and Argon–Oxygen Plasma Surface Modification of Gelatin Nanofibers for Tissue Engineering Applications

Mozaffari

Gashti²,

Mirjalili

et al. 2021

Membranes

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“…The chemical properties of the ASPNtreated UHMWPE surface were studied using Xray photoelectron spectroscopy, revealing the presence of C-N, C=N, and C!N chemical bonds. Parvinzadeh Gashti et al [28] carried out the plasma functionalization of PET using Ar/O 2 (4:1) and NH 3 / C 2 H 4 (1:1) gas mixtures followed by incubation in simulated body fluids (SBF) in order to investigate the effect of the cold plasma process in the formation of bone-like hydroxyapatite (HAp). Their results suggest that Ar/O 2 and NH 3 /C 2 H 4 plasmas as potentially useful tools for bone tissue regeneration procedures.…”

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confidence: 99%

Improving the bonding between henequen fibers and high density polyethylene using atmospheric pressure ethylene-plasma treatments

Aguilar-Rios¹,

Herrera‐Franco²,

De³

et al. 2014

Express Polym. Lett.

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“…If the treated surface is placed in a low‐energy medium, the rotation and migration of the surface polar groups will take place to reduce the polymer surface energy . It is generally known that fiber surface functionality plays an important role in the adhesion properties of the interface . Thereby, in order to inhibit the aging effects and keep the fiber surface adhesive properties, influence of different storage environments on surface properties of the plasma‐treated polymers should be considered.…”

Section: Introductionmentioning

confidence: 99%

Aging behavior of dielectric barrier discharge‐modified Twaron fibers in different storage environments

Jia

Wang

Chen

et al. 2016

Surface & Interface Analysis

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The aging behavior of air dielectric barrier discharge plasma treatment was investigated by storing the treated fibers respectively in air and in the oxidizing environment. Based on several testing methods, this study led us to the conclusion that the aging effects in the oxidizing environment were less obvious than that in air. X‐ray photoelectron spectroscopy and Fourier transform infrared spectroscopy indicated that the decay of fiber surface polar groups was more remarkable for fibers aged in air. The atomic force microscopy photos showed that the further oxidation generated by the oxidizing chemicals such as ozone increased fiber surface roughness. Thus, there was no obvious reduction in the wettability of the modified fibers during the aging process in the oxidizing environment. These changes in surface properties could explain the variation in interlaminar shear strength of Twaron fiber reinforced composites. After the fibers were aged in air for 48 h, interlaminar shear strength of the composites declined by 18.4% while had a decrease of only 11.4% after aging for 48 h in the case of the oxidizing environment. The results were supported by the water absorption test, which also reflected the effects of different storage conditions on the composite interfacial adhesion, and showed the inhibitory effect of the oxidizing environment on plasma aging. Copyright © 2016 John Wiley & Sons, Ltd.

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Thin Film Plasma Functionalization of Polyethylene Terephthalate to Induce Bone-Like Hydroxyapatite Nanocrystals

Cited by 42 publications

References 56 publications

Argon and Argon–Oxygen Plasma Surface Modification of Gelatin Nanofibers for Tissue Engineering Applications

Argon and Argon–Oxygen Plasma Surface Modification of Gelatin Nanofibers for Tissue Engineering Applications

Improving the bonding between henequen fibers and high density polyethylene using atmospheric pressure ethylene-plasma treatments

Aging behavior of dielectric barrier discharge‐modified Twaron fibers in different storage environments

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