Next Article in Journal
Sealing Ability of Alkaline Endodontic Cements versus Resin Cements
Previous Article in Journal
Effects of Hot-Hydrostatic Canned Extrusion on the Stock Utilization, Microstructure and Mechanical Properties of TiBw/TC4 Composites with Quasi-Continuous Network
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Materials 2017, 10(11), 1223; https://doi.org/10.3390/ma10111223

Surface Modification of Direct-Current and Radio-Frequency Oxygen Plasma Treatments Enhance Cell Biocompatibility

1
Institute of Manufacturing Information and Systems, National Cheng Kung University, Tainan 701, Taiwan
2
Hyperbaric Oxygen Therapy Center and Division of Plastic Surgery, Chi Mei Medical Center, Tainan 710, Taiwan
3
Department of Electrical Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
4
Department of Orthopedics, National Cheng Kung University Hospital, Tainan 704, Taiwan
5
Institute of Oral Medicine, National Cheng Kung University Medical College, Tainan 704, Taiwan
6
School of Dentistry, Kaohsiung Medical University, Kaohsiung 807, Taiwan
7
Department of Dentistry, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
*
Author to whom correspondence should be addressed.
Received: 7 September 2017 / Revised: 22 October 2017 / Accepted: 23 October 2017 / Published: 25 October 2017
(This article belongs to the Section Biomaterials)
View Full-Text   |   Download PDF [10051 KB, uploaded 25 October 2017]   |  

Abstract

The sand-blasting and acid etching (SLA) method can fabricate a rough topography for mechanical fixation and long-term stability of titanium implant, but can not achieve early bone healing. This study used two kinds of plasma treatments (Direct-Current and Radio-Frequency plasma) to modify the SLA-treated surface. The modification of plasma treatments creates respective power range and different content functional OH groups. The results show that the plasma treatments do not change the micron scale topography, and plasma-treated specimens presented super hydrophilicity. The X-ray photoelectron spectroscopy (XPS)-examined result showed that the functional OH content of the RF plasma-treated group was higher than the control (SLA) and DC treatment groups. The biological responses (protein adsorption, cell attachment, cell proliferation, and differentiation) promoted after plasma treatments, and the cell responses, have correlated to the total content of amphoteric OH groups. The experimental results indicated that plasma treatments can create functional OH groups on SLA-treated specimens, and the RF plasma-treated SLA implant thus has potential for achievement of bone healing in early stage of implantation. View Full-Text
Keywords: sand-blasting and acid etching (SLA); Direct-Current (DC) plasma treatment; Radio-Frequency (RF) plasma treatment; amphoteric OH; protein adsorption; cell response sand-blasting and acid etching (SLA); Direct-Current (DC) plasma treatment; Radio-Frequency (RF) plasma treatment; amphoteric OH; protein adsorption; cell response
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Chou, W.-C.; Wang, R.C.-C.; Liu, C.; Yang, C.-Y.; Lee, T.-M. Surface Modification of Direct-Current and Radio-Frequency Oxygen Plasma Treatments Enhance Cell Biocompatibility. Materials 2017, 10, 1223.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top