Plasmon enhanced photoelectrochemical sensing of mercury (II) ions in human serum based on Au@Ag nanorods modified TiO2 nanosheets film

Yong Zhang; Anwer Shoaib; Jiaojiao Li; Muwei Ji; Jiajia Liu; Meng Xu; Bin Tong; Jiatao Zhang; Qin Wei

doi:10.1016/j.bios.2016.01.027

Plasmon enhanced photoelectrochemical sensing of mercury (II) ions in human serum based on Au@Ag nanorods modified TiO₂ nanosheets film

Yong Zhang
, Anwer Shoaib
, Jiaojiao Li
, Muwei Ji
, Jiajia Liu
, Meng Xu
, Bin Tong
, Jiatao Zhang
, Qin Wei

Mechanical & Nuclear Engineering

Beijing Institute of Technology
University of Jinan

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

Taking advantages of the monodisperse TiO₂ nanosheets (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 TiO₂ NSs 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.

Original language	British English
Pages (from-to)	866-873
Number of pages	8
Journal	Biosensors and Bioelectronics
Volume	79
DOIs	https://doi.org/10.1016/j.bios.2016.01.027
State	Published - 15 May 2016

Keywords

Au@Ag Nanorods
Hg detection
Photoelectrochemical Sensor
TiO nanosheets film

Access to Document

10.1016/j.bios.2016.01.027

OpenUrl availability

Full text

Cite this

@article{472559f2b180474ba15eae4155f7af63,

title = "Plasmon enhanced photoelectrochemical sensing of mercury (II) ions in human serum based on Au@Ag nanorods modified TiO2 nanosheets film",

abstract = "Taking advantages of the monodisperse TiO2 nanosheets (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 TiO2 NSs 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.",

keywords = "Au@Ag Nanorods, Hg detection, Photoelectrochemical Sensor, TiO nanosheets film",

author = "Yong Zhang and Anwer Shoaib and Jiaojiao Li and Muwei Ji and Jiajia Liu and Meng Xu and Bin Tong and Jiatao Zhang and Qin Wei",

note = "Funding Information: This work was supported by the National Natural Science Foundation ( 21322105 , 91323301 and 51372025 ), the Research Fund for the Doctoral Program of Higher Education of China ( 2011101120016 ), Program for New Century Excellent Talents in University ( NCET-11-0793 ) and Natural Science Foundation of Shandong Province (No. ZR2013BL003 ). Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

month = may,

day = "15",

doi = "10.1016/j.bios.2016.01.027",

language = "British English",

volume = "79",

pages = "866--873",

journal = "Biosensors and Bioelectronics",

issn = "0956-5663",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Plasmon enhanced photoelectrochemical sensing of mercury (II) ions in human serum based on Au@Ag nanorods modified TiO2 nanosheets film

AU - Zhang, Yong

AU - Shoaib, Anwer

AU - Li, Jiaojiao

AU - Ji, Muwei

AU - Liu, Jiajia

AU - Xu, Meng

AU - Tong, Bin

AU - Zhang, Jiatao

AU - Wei, Qin

N1 - Funding Information: This work was supported by the National Natural Science Foundation ( 21322105 , 91323301 and 51372025 ), the Research Fund for the Doctoral Program of Higher Education of China ( 2011101120016 ), Program for New Century Excellent Talents in University ( NCET-11-0793 ) and Natural Science Foundation of Shandong Province (No. ZR2013BL003 ). Publisher Copyright: © 2016 Elsevier B.V.

PY - 2016/5/15

Y1 - 2016/5/15

N2 - Taking advantages of the monodisperse TiO2 nanosheets (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 TiO2 NSs 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.

AB - Taking advantages of the monodisperse TiO2 nanosheets (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 TiO2 NSs 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.

KW - Au@Ag Nanorods

KW - Hg detection

KW - Photoelectrochemical Sensor

KW - TiO nanosheets film

UR - https://www.scopus.com/pages/publications/84954284944

U2 - 10.1016/j.bios.2016.01.027

DO - 10.1016/j.bios.2016.01.027

M3 - Article

C2 - 26785311

AN - SCOPUS:84954284944

SN - 0956-5663

VL - 79

SP - 866

EP - 873

JO - Biosensors and Bioelectronics

JF - Biosensors and Bioelectronics

ER -