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2. Effects of Argon Gas Plasma Treatment on Biocompatibility of Nanostructured Titanium.

Author

Hayashi, Rina, Takao, Seiji, Komasa, Satoshi, Sekino, Tohru, Kusumoto, Tetsuji, and Maekawa, Kenji

Subjects
*ARGON plasmas, *PLASMA gases, *REACTIVE oxygen species, *BONE marrow cells, *TISSUE differentiation, *TITANIUM, *BIOACTIVE glasses
Abstract

In this study, we applied argon plasma treatment to titanium surfaces with nanostructures deposited by concentrated alkali treatment and investigated the effects on the surface of the material and the tissue surrounding an implant site. The results showed that the treatment with argon plasma removed carbon contaminants and increased the surface energy of the material while the nanoscale network structure deposited on the titanium surface remained in place. Reactive oxygen species reduced the oxidative stress of bone marrow cells on the treated titanium surface, creating a favorable environment for cell proliferation. Good results were observed in vitro evaluations using rat bone marrow cells. The group treated with argon plasma exhibited the highest apatite formation in experiments using simulated body fluids. The results of in vivo evaluation using rat femurs revealed that the treatment improved the amount of new bone formation around an implant. Thus, the results demonstrate that argon plasma treatment enhances the ability of nanostructured titanium surfaces to induce hard tissue differentiation and supports new bone formation around an implant site. [ABSTRACT FROM AUTHOR] more...

Published
2024
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3. Effect of Argon-Based Atmospheric Pressure Plasma Treatment on Hard Tissue Formation on Titanium Surface

Author

Komasa, Satoshi, primary, Kusumoto, Tetsuji, additional, Hayashi, Rina, additional, Takao, Seiji, additional, Li, Min, additional, Yan, Sifan, additional, Zeng, Yuhao, additional, Yang, Yuanyuan, additional, Hu, Hui, additional, Kobayashi, Yasuyuki, additional, Agariguchi, Akinori, additional, Nishida, Hisataka, additional, Hashimoto, Yoshiya, additional, and Okazaki, Joji, additional more...

Published
2021
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6. Effects of UV Treatment on Ceria-Stabilized Zirconia/Alumina Nanocomposite (NANOZR)

Author

Komasa, Satoshi, primary, Takao, Seiji, additional, Yang, Yuanyuan, additional, Zeng, Yuhao, additional, Li, Min, additional, Yan, Sifan, additional, Zhang, Honghao, additional, Komasa, Chisato, additional, Kobayashi, Yasuyuki, additional, Nishizaki, Hiroshi, additional, Nishida, Hisataka, additional, Kusumoto, Tetsuji, additional, and Okazaki, Joji, additional more...

Published
2020
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7. Decontamination of Titanium Surface Using Different Methods: An In Vitro Study

Author

Yan, Sifan, primary, Li, Min, additional, Komasa, Satoshi, additional, Agariguchi, Akinori, additional, Yang, Yuanyuan, additional, Zeng, Yuhao, additional, Takao, Seiji, additional, Zhang, Honghao, additional, Tashiro, Yuichiro, additional, Kusumoto, Tetsuji, additional, Kobayashi, Yasuyuki, additional, Chen, Liji, additional, Kashiwagi, Kosuke, additional, Matsumoto, Naoyuki, additional, Okazaki, Joji, additional, and Kawazoe, Takayoshi, additional more...

Published
2020
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10. Osseointegration of Alkali-Modified NANOZR Implants: An In Vivo Study

Author

Komasa, Satoshi, primary, Nishizaki, Mariko, additional, Zhang, Honghao, additional, Takao, Seiji, additional, Yin, Derong, additional, Terada, Chisato, additional, Kobayashi, Yasuyuki, additional, Kusumoto, Tetsuji, additional, Yoshimine, Shigeki, additional, Nishizaki, Hiroshi, additional, Okazaki, Joji, additional, and Chen, Luyuan, additional more...

Published
2019
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11. Surgical Approach to the Cavernous Angioma of the Orbit, with Special Reference to the Orbital Microsurgical Anatomy

Author

Muratani Hiroshi, Tsuchimochi Hirohito, Tomonaga Masamichi, Takao Seiji, Yamamoto Masaaki, Fukushima Takeo, and Utsunomiya Hidetsuna

Subjects
medicine.medical_specialty, Surgical approach, Surgical anatomy, business.industry, Orbital Tumor, medicine, Transcranial approach, Surgery, Neurology (clinical), Radiology, business
Published
1998
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