Abstract
A nanocomposite consisting of polyaniline and multiwalled carbon nanotubes was tethered with a thiolated thrombin-specific aptamer and placed on a glassy carbon electrode (GCE) to obtain a biosensor for thrombin that has a limit of detection of 80 fM. Tethering was accomplished via a thiol-ene reaction between thiolated thrombin aptamer (TTA) and oxidized polyaniline (PANI) that was chemically synthesized in the presence of solution-dispersed multiwalled carbon nanotubes (MWCNTs). The modified GCE exhibits a pair of well-defined redox peaks (at 50/−25 mV) of self-doped PANI in neutral solution, and the tethered TTA-thrombin interaction gives a decreased electrochemical signal. Cyclic voltammetry, scanning electron microscopy and ultraviolet visible spectroscopy were used to characterize the film properties. This amperometric aptasensor is sensitive, selective and reproducible. It was applied to the determination of thrombin in spiked human serum (0.2 to 4 nM) and gave recoveries that ranged from 95 to 102%.
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.References
Crivianu-Gaita V, Thompson M (2016) Aptamers, antibody scFv, and antibody Fab' fragments: an overview and comparison of three of the most versatile biosensor biorecognition elements. Biosens Bioelectron 85:32–45
Du Y, Li B, Wei H, Wang Y, Wang E (2008) Multifunctional label-free electrochemical biosensor based on an integrated aptamer. Anal Chem 80:5110–5117
Hansen JA, Wang J, Kawde AN, Xiang Y, Gothelf KV, Collins G (2006) Quantum-dot/aptamer-based ultrasensitive multi-Analyte electrochemical biosensor. J Am Chem Soc 128:2228–2229
Fu Y, Zou C, Bu L, Xie Q, Yao S (2013) Novel amperometric aptasensor based on Analyte-induced suppression of enzyme catalysis in polymeric Bionanocomposites. ACS Appl Mater Interfaces 5:934–939
Radi AE, Acero Sanchez JL, Baldrich E, O'Sullivan CK (2005) Reusable Impedimetric aptasensor. Anal Chem 77:6320–6323
Baker BR, Lai RY, Wood MS, Doctor EH, Heeger AJ, Plaxco KW (2006) An electronic, aptamer-based small-molecule sensor for the rapid, label-free detection of cocaine in adulterated samples and biological fluids. J Am Chem Soc 128:3138–3139
Basnar B, Elnathan R, Willner I (2006) Following aptamer−thrombin binding by force measurements. Anal Chem 78:3638–3642
Ma M, Zheng X (2015) Preparation of brightly fluorescent silica nanoparticles modified with lucigenin and chitosan, and their application to an aptamer-based sandwich assay for thrombin. Microchim Acta 182:2193–2199
Yue Q, Shen T, Wang L, Xu S, Li H, Xue Q, Zhang Y, Gu X, Zhang S, Liu J (2014) A convenient sandwich assay of thrombin in biological media using nanoparticle-enhanced fluorescence polarization. Biosens Bioelectron 56:231–236
Li J, Wang J, Guo X, Zheng Q, Peng J, Tang H, Yao S (2015) Carbon nanotubes labeled with aptamer and horseradish peroxidase as a probe for highly sensitive protein biosensing by postelectropolymerization of insoluble precipitates on electrodes. Anal Chem 87:7610–7617
Zhou Y, Yu B, Guiseppi EA, Sergeyev V, Levon K (2009) Potentiometric monitoring DNA hybridization. Biosens Bioelectron 24:3275–3280
Thompson LA, Kowalik J, Josowicz M, Janata J (2002) Label-free DNA hybridization probe based on a conducting polymer. J Am Chem Soc 125:324–325
Chen L, Li Z, Meng Y, Zhang P, Su Z, Liu Y, Huang Y, Zhou Y, Xie Q, Yao S (2014) Sensitive square wave anodic stripping voltammetric determination of Cd2+ and Pb2+ ions at Bi/Nafion/overoxidized 2-mercaptoethanesulfonate-tethered polypyrrole/glassy carbon electrode. Sensor Actua B 191:94–101
Su Z, Liu Y, Zhang Y, Xie Q, Chen L, Huang Y, Fu Y, Meng Y, Li X, Ma M (2013) Thiol-ene chemistry guided preparation of thiolated polymeric nanocomposite for anodic stripping voltammetric analysis of Cd2+ and Pb2+. Analyst 138: 1180–1186
Liu Y, Su Z, Zhang Y, Chen L, Gu T, Huang S, Liu Y, Sun L, Xie Q, Yao S (2013) Amperometric determination of ascorbic acid using multiwalled carbon nanotube-thiolated polyaniline composite modified glassy carbon electrode. J Electroanal Chem 709:19–25
Su Z, Liu Y, Xie Q, Chen L, Zhang Y, Meng Y, Li Y, Fu Y, Ma M, Yao S (2012) Preparation of thiolated polymeric nanocomposite for sensitive electroanalysis of dopamine. Biosens Bioelectron 36:154–160
Chen L, Su Z, He X, Liu Y, Qin C, Zhou Y (2012) Square wave anodic stripping voltammetric determination of Cd and Pb ions at a Bi/Nafion/thiolated polyaniline/glassy carbon electrode. Electrochem Commun 15:34–37
Hoyle CE, Lowe AB, Bowman CN (2010) Thiol-click chemistry: a multifaceted toolbox for small molecule and polymer synthesis. Chem Soc Rev 39:1355–1387
Liu J, Tian S, Knoll W (2005) Properties of polyaniline/carbon nanotube multilayer films in neutral solution and their application for stable low-potential detection of reduced β-nicotinamide adenine dinucleotide. Langmuir 21:5596–5599
Tian S, Liu J, Zhu T, Knoll W (2004) Polyaniline/gold nanoparticle multilayer films: assembly, properties, and biological applications. Chem Mater 16:4103–4108
Wang Z, Liu J, Liang Q, Wang Y, Luo G (2002) Carbon nanotube-modified electrodes for the simultaneous determination of dopamine and ascorbic acid. Analyst 127:653–658
Shreepathi S, Holze R (2005) Spectroelectrochemical investigations of soluble polyaniline synthesized via new inverse emulsion pathway. Chem Mater 17:4078–4085
Elwahed A, Holze R (2002) Ion size and size memory effects with electropolymerized polyaniline. Synth Met 131:61–70
Masters JG, Ginder JM, MacDiarmid AG, Epstein AJ (1992) Thermochromism in the insulating forms of polyaniline: role of ring-torsional conformation. J Chem Phys 96:4768–4778
Zhou Y, Yu B, Levon K (2004) The role of cysteine residues in electrochemistry of cytochrome c at a polyaniline modified electrode. Synth Met 142:137–141
Lin Z, Pan D, Hu T, Liu Z, Su X (2015) A near-infrared fluorescent bioassay for thrombin using aptamer-modified CuInS2 quantum dots. Microchim Acta 182:1933–1939
Wang GL, Hu XL, Wu XM, Dong YM, Li ZJ (2016) Fluorescent aptamer-based assay for thrombin with large signal amplification using peroxidase mimetics. Microchim Acta 183:765–771
Xu Z, Huang X, Dong C, Ren J (2014) Fluorescence correlation spectroscopy of gold nanoparticles, and its application to an aptamer-based homogeneous thrombin assay. Microchim Acta 181:723–730
Zhang H, Shuang S, Sun L, Chen A, Qin Y (2014) Label-free aptasensor for thrombin using a glassy carbon electrode modified with a graphene-porphyrin composite. Microchim Acta 181:189–196
Shangguan L, Zhu W, Xue Y, Liu S (2015) Construction of photoelectrochemical thrombin aptasensor via assembling multilayer of graphene-CdS nanocomposites. Biosens Bioelectron 64:611–617
Zhang L, Li L (2016) Colorimetric thrombin assay using aptamer-functionalized gold nanoparticles acting as a peroxidase mimetic. Microchim Acta 183:485–490
Sinha B, Ramulu TS, Kim KW, Venu R, Lee JJ, Kim CG (2014) Planar hall magnetoresistive aptasensor for thrombin detection. Biosens Bioelectron 59:140–144
Cunningham JC, Brenes NJ, Crooks RM (2014) Paper electrochemical device for detection of DNA and thrombin by target-induced conformational switching. Anal Chem 86:6166–6170
Li Y, Ling L (2015) Aptamer-based fluorescent solid-phase thrombin assay using a silver-coated glass substrate and signal amplification by glucose oxidase. Microchim Acta 182:1849–1854
Acknowledgements
This work was supported by the National Natural Science Foundation of China (21305039, 21475041, 21175042 and 21075036), the Foundation of Hunan Province (14JJ3097), the Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province, the Foundation of Hunan Provincial Education Department for Young Scholar, and the Foundation of Hunan Agricultural University (12YJ05). Thank Dr. Rui Tan (Postdoctoral associate of Department of Chemistry, Brown University) for checking the language.
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
The author(s) declare that they have no competing interests.
Electronic supplementary material
ESM 1
(DOC 781 kb)
Rights and permissions
About this article
Cite this article
Su, Z., Xu, X., Xu, H. et al. Amperometric thrombin aptasensor using a glassy carbon electrode modified with polyaniline and multiwalled carbon nanotubes tethered with a thiolated aptamer. Microchim Acta 184, 1677–1682 (2017). https://doi.org/10.1007/s00604-017-2164-9
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00604-017-2164-9