An alternative to annealing TiO 2 nanotubes for morphology preservation: Atmospheric pressure plasma jet treatment

Sang Hee Seo, Soo Hyuk Uhm, Jae Sung Kwon, Eun Ha Choi, Kwangmahn Kim, Kyoung Nam Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 TiO 2 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 TiO 2 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 Ti0 2 nanotubes. The chemical composition of the surface was studied using X-ray pho-toelectron spectroscopy, and the morphology of TiO 2 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 TiO 2 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 TiO 2 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.

Original languageEnglish
Pages (from-to)2501-2507
Number of pages7
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number3
DOIs
Publication statusPublished - 2015 Mar 1

Fingerprint

Nanotubes
Atmospheric Pressure
Plasma Gases
Biocompatible Materials
Hydrophobic and Hydrophilic Interactions
Air
Tetrazolium Salts
Osteoblasts
Electron Scanning Microscopy
Heating
Spectrum Analysis
Cell Survival
X-Rays
Cell Line
Water

All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Seo, Sang Hee ; Uhm, Soo Hyuk ; Kwon, Jae Sung ; Choi, Eun Ha ; Kim, Kwangmahn ; Kim, Kyoung Nam. / An alternative to annealing TiO 2 nanotubes for morphology preservation : Atmospheric pressure plasma jet treatment. In: Journal of Nanoscience and Nanotechnology. 2015 ; Vol. 15, No. 3. pp. 2501-2507.
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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 TiO 2 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 TiO 2 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 Ti0 2 nanotubes. The chemical composition of the surface was studied using X-ray pho-toelectron spectroscopy, and the morphology of TiO 2 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 TiO 2 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 TiO 2 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.",
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An alternative to annealing TiO 2 nanotubes for morphology preservation : Atmospheric pressure plasma jet treatment. / Seo, Sang Hee; Uhm, Soo Hyuk; Kwon, Jae Sung; Choi, Eun Ha; Kim, Kwangmahn; Kim, Kyoung Nam.

In: Journal of Nanoscience and Nanotechnology, Vol. 15, No. 3, 01.03.2015, p. 2501-2507.

Research output: Contribution to journalArticle

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AU - Seo, Sang Hee

AU - Uhm, Soo Hyuk

AU - Kwon, Jae Sung

AU - Choi, Eun Ha

AU - Kim, Kwangmahn

AU - Kim, Kyoung Nam

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N2 - 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 TiO 2 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 TiO 2 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 Ti0 2 nanotubes. The chemical composition of the surface was studied using X-ray pho-toelectron spectroscopy, and the morphology of TiO 2 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 TiO 2 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 TiO 2 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.

AB - 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 TiO 2 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 TiO 2 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 Ti0 2 nanotubes. The chemical composition of the surface was studied using X-ray pho-toelectron spectroscopy, and the morphology of TiO 2 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 TiO 2 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 TiO 2 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.

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