生体のなかの粘土

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  • 林 久人
    秋田大学鉱山学部附属地下資源研究施設

書誌事項

タイトル別名
  • Clays in human tissues
  • セイタイ ノ ナカ ノ ネンド

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抄録

Methods of isolation and analysis of the particulate materials in the human tissues are reviewed. Since the relation of asbestiform minerals to human disease has been well documented, individual asbestos fibres and/or body cores in lung tissues have been sub-ject of observation by transmission electron microscope. Recently analytical electron microscope has been developed to facilitate observations for morphological and structural and chemical characteristics on the same specimen with an instantaneous switching. A carbon extraction technique used in association with analytical electron microscope provided evidence for the presence in the human tissues of quartz, sericite, talc, pyrophyllite, kaolin, diatomaceous material and some types of asbestos fibres. Applying a method of quantitative analysis for thin specimens by energy dispersive X-ray spectrometer, more than a quarter of the whole MgO contents leached out from chrysotile fibrils by their residence of 28 months in the rat lung.<BR>The biological and tissue responses on exposure of asbestos fibres are also reviewed from a molecular biological viewpoint.

収録刊行物

  • 粘土科学

    粘土科学 17 (4), 159-169, 1977

    一般社団法人 日本粘土学会

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