标题：Plasmon enhanced photoelectrochemical sensing of mercury (II) ions in human serum based on Au@Ag nanorods modified TiO2nanosheets film
作者：Zhang, Yong ;Shoaib, Anwer ;Li, Jiaojiao ;Ji, Muwei ;Liu, Jiajia ;Xu, Meng ;Tong, Bin ;Zhang, Jiatao ;Wei, Qin
作者机构：[Zhang, Yong ;Shoaib, Anwer ;Ji, Muwei ;Liu, Jiajia ;Xu, Meng ;Tong, Bin ;Zhang, Jiatao ] Beijing Key Lab. of Construction Tailorable Advanced Functio 更多
来源：Biosensors and Bioelectronics
摘要：Taking advantages of the monodisperse TiO2nanosheets (NSs) with high active crystal face exposure and the tunable localized surface plasmon resonance (LSPR) properties of Au@Ag nanorods (NRs), this study demonstrated that TiO2NSs film with trace amount of Au@Ag NRs modification possess a strong enhancement of photocurrent response, which was remarkably inhibited with the addition of mercury (II) ions (Hg2+). Based on the selective decrease of photocurrent with the addition of Hg2+, a simple photoelectrochemical (PEC) sensor has been assembled. The PEC sensor exhibits wide linear range (0.01-10nM), low detection limit (2.5pM), satisfying selectivity, reproducibility and acceptable stability for Hg2+detection. The feasibility of this method for practical application in human serum has been evaluated and the result was satisfactory. This PEC sensing method would provide a potential application for Hg2+detection in clinical diagnosis.
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