希少な鉱化による高耐磨性: 虫のに含まれる銅のバイオミネラル

Helga C Lichtenegger¹, Thomas Schöberl, Michael H Bartl

¹Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA.

Science (New York, N.Y.)

|October 12, 2002

まとめ

海の血虫は,に銅ベースのアタカミットを使用し,脊椎動物の歯と比較して優れた硬さと磨損耐性を提供します. このユニークなバイオミネラライゼーションは,例外的なの強さを提供します.

科学分野:

バイオミネラライゼーション
マテリアルサイエンス材料科学
マリン・バイオロジーマリン・バイオロジー

背景:

バイオミネラルは通常,組織硬化のためにカルシウム,シリコン,または鉄を使用します.
海の血虫グライセラ・ディブランキアタは,銅ベースのバイオミネラライゼーションのユニークな事例です.

研究の目的:

Glycera dibranchiata jaws.の銅ベースのバイオミネラルアタカマイトの構造的役割と機械的性質を調査する.
血虫のの摩擦抵抗を脊椎動物の歯骨とエナメルと比較するために.

主な方法:

ナノインデントは,バイオミネラルの硬さと硬さを評価するために使用されました.
内の多結晶繊維の指向の微細構造分析が行われました.

主要な成果:

血虫ののアタカミットは構造的に機能し,硬さと硬さを高めます.
鉱化量が低いにもかかわらず,これらのは,歯並びを上回り,エナメルに近づくような,著しい磨損耐性を示しています.

結論:

銅ベースのバイオミネラルアタカマイトは,Glycera dibranchiataのを特殊な機械的特性で提供しています.
この研究は,海洋無脊椎動物の極端な磨き耐性を高める新しい生体材料戦略を強調しています.

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