期刊论文

Cao, Zhong

英文

Analytical Sciences

0910-6340

2011

27

6

643-647

10.2116/analsci.27.643

National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [20775010, 21075011, 21003014]; Hunan Provincial Natural Science Foundation of ChinaNatural Science Foundation of Hunan Province [09JJ3016, 10JJ5002]; Foundation of Science and Technology Agency of Hunan Province of China [2009WK4005, 2009FJ3173, 2010FJ3167]; Foundation of Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation of China [2011CL05]; Ministry of Education of the People's Republic of ChinaMinistry of Education, China [NCET-10-0138]

本校为第一且通讯机构

Quantum dots (QDs) have become one of the most attractive fields of current research because of their unique optical properties. Novel copper-sensitive fluorescent fluoroionophores based on CdSe/CdS core/shell QDs modified with a polymer of MAO-mPEG were synthesized and characterized in the present work. A pH of 6.47 was optimally selected for measurements. By modifying QDs with MAO-mPEG, significant aqueous fluorescence quenching was observed upon binding with copper ions involving both reduced and oxidized environments, indicating great sensi...