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Submitted on: 14 March 2009.
Revised on: 28 April 2009.
Accepted on: 24 June 2009.
___________________International Journal of Nanoscience
Submitted on: 10 February 2021.
Revised on: 23 April 2021.
Accepted on: 18 June 2021.
___________________International Journal of Nanoscience
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Submitted on: 19 May 2011.
Revised on: 27 July 2011.
Accepted on: 16 August 2011.
___________________International Journal of Nanoscience
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