Submitted on: 17 June 2002.
Revised on: 30 August 2002.
Accepted on: 25 September 2002.
___________________Journal of Nano Research---TRANS TECH PUBLICATIONS LTD
Submitted on: 21 April 2008.
Revised on: 13 July 2008.
Accepted on: 29 August 2008.
___________________Journal of Nano Research---TRANS TECH PUBLICATIONS LTD
Submitted on: 15 June 2002.
Revised on: 17 September 2002.
Accepted on: 04 October 2002.
___________________Journal of Nano Research---TRANS TECH PUBLICATIONS LTD
Submitted on: 28 January 2019.
Revised on: 25 February 2019.
Accepted on: 17 April 2019.
___________________Journal of Nano Research---TRANS TECH PUBLICATIONS LTD
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