Nano Archive

Chemical stability of ZnO nanostructures in simulated physiological environments and its application in determining polar directions

Cheng, Chun and Xin, Renlong and Leng, Yang and Yu, Dapeng and Wang, Ning (2008) Chemical stability of ZnO nanostructures in simulated physiological environments and its application in determining polar directions. INORGANIC CHEMISTRY, 47 (17). pp. 7868-7873.

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Official URL: http://dx.doi.org/10.1021/ic8005234

Abstract

The in vitro chemical stability and etching of ZnO nanostructures in simulated physiological solution (SPS) were studied using electron microscopy. Calcium hydrogen phosphate thin layers were observed to be uniformly deposited on the surfaces of ZnO nanomaterials in SPS. Electron diffraction and high-resolution transmission electron microscopy revealed that the calcium hydrogen phosphate layers were amorphous and had excellent interfacial contact with the nanocrystals. ZnO nanostructures fabricated by thermal evaporation were found to survive much longer in SPS than those fabricated using a hydrothermal solution method. The shapes of the voids formed in the ZnO nanostructures by the etching in SPS can be used to deduce the polar directions of ZnO nanostructures.

Item Type:Article
Subjects:Physical Science > Nano objects
Material Science > Nanostructured materials
Material Science > Nanochemistry
ID Code:1214
Deposited By:Anuj Seth
Deposited On:16 Dec 2008 12:18
Last Modified:20 Jan 2009 10:09

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