Submitted on: 07 September 2009.
Revised on: 28 November 2009.
Accepted on: 21 December 2009.
___________________Biomolecules---MDPI
http://reply.papertrans.cn/1/38/3711/3711-32.png
Submitted on: 01 February 1998.
Revised on: 15 May 1998.
Accepted on: 10 June 1998.
___________________Biomolecules---MDPI
http://reply.papertrans.cn/1/38/3711/3711-34.png
http://reply.papertrans.cn/1/38/3711/3711-35.png
http://reply.papertrans.cn/1/38/3711/3711-36.png