Out from under the skin: Disease etiology, biology and society: A commentary on Aronowitz

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• 作者：Duana Fullwiley
• 关键词：Disease framings ; Etiology ; Medical anthropology ; Social epidemiology ; Population health ; Social determinants of health ; History of medicine ; Social construction of disease
• 刊名：Social Science and Medicine
• 出版年：2008
• 出版时间：July 2008
• 年：2008
• 卷：67
• 期：1
• 页码：14-17
• 全文大小：96 K

文摘

Silica nanotubes were synthesized using the multi-walled carbon nanotubes (MWCNTs) as the template material. First, we prepared silica coated MWCNT composites by surface oxidation of MWCNTs using KMnO₄ in the presence of a phase transfer catalyst and followed by grafting of 2-aminoethyl 3-aminopropyl trimethoxy silane, AEAPS. The amine groups in grafted AEAPS on MWCNTs could activate the silica shell formation by acid–base interaction. The synthesized silica was formed a uniform layer on MWCNTs with a controllable thickness and possessed sturdy 3-dimensional stability. After calcinations at 800 °C, the inner MWCNTs of the composite were completely decomposed and the outer silica shell layer maintained without distortion of its original shape. Finally, we could obtain the silica nanotubes having 13.0 nm of average layer thickness.