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An Alternative to Annealing TiO2 Nanotubes for Morphology Preservation: Atmospheric Pressure Plasma Jet Treatment

Authors
 Sang-Hee Seo  ;  Soo-Hyuk Uhm  ;  Jae-Sung Kwon  ;  Eun Ha Choi  ;  Kwang-Mahn Kim  ;  Kyoung-Nam Kim 
Citation
 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, Vol.15(3) : 2501-2507, 2015 
Journal Title
 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 
ISSN
 1533-4880 
Issue Date
2015
MeSH
Animals ; Atmospheric Pressure* ; Cell Line ; Cell Proliferation/drug effects ; Cell Survival/drug effects ; Hydrophobic and Hydrophilic Interactions ; Mice ; Nanotechnology/methods* ; Nanotubes/chemistry* ; Osteoblasts/cytology ; Osteoblasts/drug effects ; Plasma Gases/chemistry* ; Titanium/chemistry* ; Titanium/pharmacology ; Water/chemistry
Abstract
Titanium oxide nanotube layer formed by plasma electrolytic oxidation (PEO) is known to be excellent in biomaterial applications. However, the annealing process which is commonly performed on the TiO2 nanotubes cause defects in the nanotubular structure. The purpose of this work was to apply a non-thermal atmospheric pressure plasma jet on diameter-controlled TiO2 nanotubes to mimic the effects of annealing while maintaining the tubular structure for use as biomaterial. Diameter-controlled nanotube samples fabricated by plasma electrolytic oxidation were dried and prepared under three different conditions: untreated, annealed at 450 °C for 1 h in air with a heating rate of 10 °C/min, and treated with an air-based non-thermal atmospheric pressure plasma jet for 5 minutes. The contact angle measurement was investigated to confirm the enhanced hydrophilicity of the TiO2 nanotubes. The chemical composition of the surface was studied using X-ray photoelectron spectroscopy, and the morphology of TiO2 nanotubes was examined by field emission scanning electron microscopy. For the viability of the cell, the attachment of the osteoblastic cell line MC3T3-E1 was determined using the water-soluble tetrazolium salt assay. We found that there are no morphological changes in the TiO2 nanotubular structure after the plasma treatment. Also, we investigated a change in the chemical composition and enhanced hydrophilicity which result in improved cell behavior. The results of this study indicated that the non-thermal atmospheric pressure plasma jet results in osteoblast functionality that is comparable to annealed samples while maintaining the tubular structure of the TiO2 nanotubes. Therefore, this study concluded that the use of a non-thermal atmospheric pressure plasma jet on nanotube surfaces may replace the annealing process following plasma electrolytic oxidation.
Full Text
https://www.ingentaconnect.com/content/asp/jnn/2015/00000015/00000003/art00093%3bjsessionid=31078qjeijti0.x-ic-live-02
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Dental Biomaterials and Bioengineering (치과생체재료공학교실) > 1. Journal Papers
Yonsei Authors
Kwon, Jae-Sung(권재성) ORCID logo https://orcid.org/0000-0001-9803-7730
Kim, Kyoung Nam(김경남)
Kim, Kwang Mahn(김광만) ORCID logo https://orcid.org/0000-0002-5235-0294
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/165033
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