国家自然科学基金30670683,30973084;安徽省自然科学基金11040606M167;安徽省科技攻关计划项目1301042201;安徽省重点实验室绩效考核项目1306c083028 National Natural Science Foundation of China30670683,30973084;Anhui Natural Science Foundation11040606M167;Anhui Key Technologies R&D Program1301042201;Performance Assessment Items for Key Laboratories in Anhui Province1306c083028