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Submitted on: 30 August 2000.
Revised on: 26 September 2000.
Accepted on: 13 November 2000.
___________________Colloid and Interface Science Communications
Submitted on: 12 June 2010.
Revised on: 11 September 2010.
Accepted on: 04 October 2010.
___________________Colloid and Interface Science Communications
Submitted on: 15 May 2018.
Revised on: 09 September 2018.
Accepted on: 27 September 2018.
___________________Colloid and Interface Science Communications
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