Submitted on: 28 November 1998.
Revised on: 11 February 1999.
Accepted on: 29 March 1999.
___________________BIOMACROMOLECULES---AMER CHEMICAL SOC
http://reply.papertrans.cn/1/37/3630/3630-32.png
http://reply.papertrans.cn/1/37/3630/3630-33.png
http://reply.papertrans.cn/1/37/3630/3630-34.png
Submitted on: 18 July 2007.
Revised on: 12 October 2007.
Accepted on: 25 October 2007.
___________________BIOMACROMOLECULES---AMER CHEMICAL SOC
http://reply.papertrans.cn/1/37/3630/3630-36.png