水のプラズマ処理方法:タイタニウムベースのインプラントの同時無菌化と表面改変
Gustavo L Likes1, Rafael L Novak1, Vitor C Y Franceschini2
1Mechanical Engineering Department, Federal University of Paraná, Curitiba, Brazil.
まとめ
新しい低温直流水プラズマ法で タイタンの表面を効果的に消毒し,汚染物質や細菌を除去します. このプロセスはチタン酸化物層を保存し,強化し,臨床用途の有望性を示しています.
科学分野:
- バイオマテリアル科学
- 表面化学
- 滅菌技術
背景:
- 医療用インプラントの滅菌は 感染症を予防するために不可欠です
- 従来の滅菌方法は,材料の特性に影響を及ぼしたり,高い温度を必要とします.
- 効果的な低温のチタンの殺菌技術を開発することは,生物医学的な用途に不可欠です.
研究 の 目的:
- タイタンの滅菌のための新しいDC水プラズマ方法の適用性と有効性を評価する.
- 水のプラズマ処理がチタンの表面酸化物層と形態学に与える影響を評価する.
- この方法の臨床使用の可能性を判断する.
主な方法:
- タイタンのサンプルを10分間60°CのDC水プラズマシステムで処理した.
- 水蒸気は蒸留水から生成され, -700Vで極化されます.
- 表面の組成と汚染レベルを評価するために元素分析が行われました.
主要な成果:
- 有機および無機の汚染物質 (0%検出) と細菌の完全な除去が達成されました.
- タイタンの表面の酸素含有量は約8%で安定した.
- 水のプラズマ処理は,表面の酸化チタンの層や形状に悪影響を及ぼさなかった.
結論:
- DC水プラズマ方法は,チタンの低温滅菌に有効です.
- このプロセスは天然の酸化物層を強化し,チタンの生物活性性を潜在的に改善します.
- この水性殺菌システムは 将来の臨床応用に 期待されています
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