An electrochemical chlorpyrifos aptasensor based on the use of a glassy carbon electrode modified with an electropolymerized aptamer-imprinted polymer and gold nanorods

被引：57
作者：
Roushani, Mahmoud [1 ]
Nezhadali, Azizollah [2 ]
Jalilian, Zeynab [2 ]
机构：
[1] Ilam Univ, Dept Chem, POB 69315-516, Ilam, Iran
[2] Payame Noor Univ, Dept Chem, POB 19395-4697, Tehran, Iran
来源：
MICROCHIMICA ACTA | 2018年 / 185卷 / 12期
关键词：
o-Dihydroxybenzene; o-Phenylenediamine; Hexacyanoferrate; Nanohybrid; Differential pulse voltammetry; Electrochemical impedance spectroscopy; Pesticide; TRACE-LEVEL DETERMINATION; GAS-CHROMATOGRAPHY; THROMBIN-BINDING; NANOPARTICLES; SENSOR; NANOCOMPOSITE; PESTICIDES; PROBE; RECOGNITION; FABRICATION;
D O I：
10.1007/s00604-018-3083-0
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A highly selective and sensitive aptasensor is described for voltammetric determination of the pesticide chlorpyrifos (CPS). The sensor was constructed by modifying a glassy carbon electrode (GCE) with gold nanorods and a polymer that was molecularly imprinted with an aptamer against CPS. This results in double specific recognition. Under optimal conditions and a working potential as low as 0.22V (vs. Ag/AgCl), the nanotools has a dynamic range that covers the 1.0 fM - 0.4 pM CPS concentration range, and the detection limit is 0.35 fM. This is lower than any of the previously reported methods. This MIP-aptasensor is selective over structural analogs, stable, and adequately reproducible. It was successfully applied to the determination of CPS in spiked food samples.
引用
收藏
页数：8
相关论文
共 47 条
[1]   A novel capacitive biosensor for cholesterol assay that uses an electropolymerized molecularly imprinted polymer [J].
Aghaei, Ali ;
Hosseini, Mohammad Reza Milani ;
Najafi, Mostafa .
ELECTROCHIMICA ACTA, 2010, 55 (05) :1503-1508
[2]   Gold nanorods-graphene oxide nanocomposite incorporated carbon nanotube paste modified glassy carbon electrode for voltammetric determination of indomethacin [J].
Arvand, Majid ;
Gholizadeh, Tahereh M. .
SENSORS AND ACTUATORS B-CHEMICAL, 2013, 186 :622-632
[3]   Following aptamer-thrombin binding by force measurements [J].
Basnar, Bernhard ;
Elnathan, Roey ;
Willner, Itamar .
ANALYTICAL CHEMISTRY, 2006, 78 (11) :3638-3642
[4]   Contrasting Effect of Gold Nanoparticles and Nanorods with Different Surface Modifications on the Structure and Activity of Bovine Serum Albumin [J].
Chakraborty, Soumyananda ;
Joshi, Prachi ;
Shanker, Virendra ;
Ansari, Z. A. ;
Singh, Surinder P. ;
Chakrabarti, Pinak .
LANGMUIR, 2011, 27 (12) :7722-7731
[5]  
Chen DF, 2015, INT J ELECTROCHEM SC, V10, P10491
[6]   A novel electrochemiluminescence sensor for the detection of nitroaniline based on the nitrogen-doped graphene quantum dots [J].
Chen, Shufan ;
Chen, Xueqian ;
Xia, Tingting ;
Ma, Qiang .
BIOSENSORS & BIOELECTRONICS, 2016, 85 :903-908
[7]   MIP-graphene-modified glassy carbon electrode for the determination of trimethoprim [J].
da Silva, Helder ;
Pacheco, Joao G. ;
Magalhaes, Julia M. C. S. ;
Viswanathan, Subramanian ;
Delerue-Matos, Cristina .
BIOSENSORS & BIOELECTRONICS, 2014, 52 :56-61
[8]   Molecularly imprinted electrochemical aptasensor for the attomolar detection of bisphenol A [J].
Ensafi, Ali A. ;
Amini, Maryam ;
Rezaei, Behzad .
MICROCHIMICA ACTA, 2018, 185 (05)
[9]   A electrochemiluminescence aptasensor for detection of thrombin incorporating the capture aptamer labeled with gold nanoparticles immobilized onto the thio-silanized ITO electrode [J].
Fang, Lanyun ;
Lv, Zhaozi ;
Wei, Hui ;
Wang, Erkang .
ANALYTICA CHIMICA ACTA, 2008, 628 (01) :80-86
[10]   A nanohybrid probe based on double recognition of an aptamer MIP grafted onto a MWCNTs-Chit nanocomposite for sensing hepatitis C virus core antigen [J].
Ghanbari, Kazhal ;
Roushani, Mahmoud .
SENSORS AND ACTUATORS B-CHEMICAL, 2018, 258 :1066-1071
12345