The authors gratefully acknowledge the support of the Natural Science Foundation of China (No.11375084) and Science and Technology Program of Hunan Province in China (No. 2014FJ6097)
机构署名:
本校为第一且通讯机构
院系归属:
化学化工学院
摘要:
A novel highly sensitive and specific electrochemical biosensor for detecting uranium based on specific Deoxyribozymes and gold nanoparticles (AuNPs) is reported. In this work, AuNPs provide excellent electrochemical signal transduction and a large surface area for immobilising numerous Deoxyribozymes, so a low detection limit of 3.24ngL−1 uranium and a good linear relationship over the range 5.94–35.1ngL−1 (r=0.994) were obtained. The proposed biosensor presents high specificity and selectivity for uranium and is not affected by other metal...