Ion-beam irradiation of DLC-based nanocomposite

Creation of a highly biocompatible surface

Oleksiy V. Penkov, Mehdi Kheradmandfard, Mahdi Khadem, Mahshid Kharaziha, Rouhollah Mirzaamiri, Kuk Jin Seo, Dae Eun Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Ion-beam irradiation of diamond-like carbon (DLC) by He ions was studied. Molecular dynamics simulation was performed to understand the effects of irradiation on the nano-topography and chemical state of the coatings and determine the optimal irradiation conditions. Then, the experiment was conducted to validate the results of the simulation and correlate surface modifications to biomedical properties. It was demonstrated that the irradiation led to the formation of a low-density and low-sp3 content surface layer. The structural and chemical properties of the final surface were nearly independent of the initial sp3 content and irradiation energy. The biocompatibility of DLC-based nanocomposite coatings was significantly improved by ion-beam irradiation. Nanocomposite coatings were irradiated by 1 keV He ions. Irradiation with a dose of 4.2 × 1015 ion/cm2 increased the adhesion of MG63 cells dramatically from 10 to ∼100%.

Original languageEnglish
Pages (from-to)896-903
Number of pages8
JournalApplied Surface Science
Volume469
DOIs
Publication statusPublished - 2019 Mar 1

Fingerprint

Diamond
Ion beams
Diamonds
Nanocomposites
Carbon
Irradiation
Ions
Coatings
Biocompatibility
Topography
Chemical properties
Dosimetry
Surface treatment
Molecular dynamics
Structural properties
Adhesion
Computer simulation

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

Penkov, O. V., Kheradmandfard, M., Khadem, M., Kharaziha, M., Mirzaamiri, R., Seo, K. J., & Kim, D. E. (2019). Ion-beam irradiation of DLC-based nanocomposite: Creation of a highly biocompatible surface. Applied Surface Science, 469, 896-903. https://doi.org/10.1016/j.apsusc.2018.11.109
Penkov, Oleksiy V. ; Kheradmandfard, Mehdi ; Khadem, Mahdi ; Kharaziha, Mahshid ; Mirzaamiri, Rouhollah ; Seo, Kuk Jin ; Kim, Dae Eun. / Ion-beam irradiation of DLC-based nanocomposite : Creation of a highly biocompatible surface. In: Applied Surface Science. 2019 ; Vol. 469. pp. 896-903.
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Penkov, OV, Kheradmandfard, M, Khadem, M, Kharaziha, M, Mirzaamiri, R, Seo, KJ & Kim, DE 2019, 'Ion-beam irradiation of DLC-based nanocomposite: Creation of a highly biocompatible surface', Applied Surface Science, vol. 469, pp. 896-903. https://doi.org/10.1016/j.apsusc.2018.11.109

Ion-beam irradiation of DLC-based nanocomposite : Creation of a highly biocompatible surface. / Penkov, Oleksiy V.; Kheradmandfard, Mehdi; Khadem, Mahdi; Kharaziha, Mahshid; Mirzaamiri, Rouhollah; Seo, Kuk Jin; Kim, Dae Eun.

In: Applied Surface Science, Vol. 469, 01.03.2019, p. 896-903.

Research output: Contribution to journalArticle

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AU - Penkov, Oleksiy V.

AU - Kheradmandfard, Mehdi

AU - Khadem, Mahdi

AU - Kharaziha, Mahshid

AU - Mirzaamiri, Rouhollah

AU - Seo, Kuk Jin

AU - Kim, Dae Eun

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Penkov OV, Kheradmandfard M, Khadem M, Kharaziha M, Mirzaamiri R, Seo KJ et al. Ion-beam irradiation of DLC-based nanocomposite: Creation of a highly biocompatible surface. Applied Surface Science. 2019 Mar 1;469:896-903. https://doi.org/10.1016/j.apsusc.2018.11.109