Chinese Science Bulletin reports on the innovative achievements in all subject areas in science.It is a place for the high- level exchange between scientists from both China and abroad. Chinese Science Bulletin is indexed by SCI,CA,etc. Chinese Science Bulletin print version is distributed globally.Its electronic version is available at www.springerlink.com The editor-in-chief and the executive editors form the core of leadership of Chinese Science Bulletin.The review process, with fairness as one of its priorities,is organized by the editor-in-chief and the executive editors with the assistance of the associate editors. Chinese Science Bulletin features articles,reviews and news and views. Chinese Science Bulletin is a semimonthly,24 issues a year,publishing more than 500 articles.