Submitted on: 11 July 2004.
Revised on: 25 October 2004.
Accepted on: 09 November 2004.
___________________International Journal of Nanoscience
Submitted on: 17 October 2000.
Revised on: 07 November 2000.
Accepted on: 24 December 2000.
___________________International Journal of Nanoscience
Submitted on: 24 May 2003.
Revised on: 29 July 2003.
Accepted on: 15 August 2003.
___________________International Journal of Nanoscience
Submitted on: 11 October 2006.
Revised on: 14 January 2007.
Accepted on: 24 February 2007.
___________________International Journal of Nanoscience
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