Abstract
The surface of a platinum electrode has been modified with platinum nanoparticles (PtNPs) and the enzyme sulfite oxidase (SOx), was entrapped on its surface in an ultrathin polypyrrole (PPy) film. The PtNPs, with a diameter of 30–40 nm, were deposited on the Pt electrode by cycling the electrode potential 20 times from -200 to 200 mV at a sweep rate of 50 mV.s-1. Morphological evidence of the successful incorporation of SOx and the presence of PtNPs were obtained by scanning electron microscopy. Also, the electrochemical behavior of the PtNPs/PPy-SOx film was examined by cyclic voltammetry, chronopotentiometry, electrochemical impedance spectroscopy and potentiometry. Under optimized conditions, the biosensor achieved a sensitivity of 57.5 mV.decade-1, a linear response that extends from 0.75 to 65 μM of sulfite, a detection limit of 12.4 nM, and a response time of 3–5 s. The biosensor was successfully applied to the determination of sulfite in wine and beer samples.
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Chichester DF, Tanner FW (1972) In: Furia TE (ed) CRC Handbook of Food Additives, vol 1, 2nd edn. CRC Press, Florida, pp. 115–184
Hrapovic S, Liu Y, Keith B, Luong JHT (2004) Electrochemical biosensing platforms using platinum nanoparticles and carbon nanotubes. Anal Chem 76:1083
Ameer Q, Adeloju SB (2008) Galvanostatic entrapment of sulfite oxidase into ultrathin polypyrrole films for improved amperometric biosensing of sulfite. Electroanalysis 20:2549
Pundir C, Rawal R (2013) Determination of sulfite with emphasis on biosensing methods. Anal Bioanal Chem 405:3049
Kanazawa KK, Diaz AF, Gill WD, Grant PM, Street GB, Gardini GP, Kwak JF (1980) Polypyrrole: an electrochemically synthesized conducting organic polymer. Synth Met 1:329
Han D-H, Lee HJ, Park S-M (2005) Electrochemistry of conductive polymers XXXV: electrical and morphological characteristics of polypyrrole films prepared in aqueous media studied by current sensing atomic force microscopy. Electrochim Acta 50:3085
Weidlich C, Mangold KM, Juttner K (2005) EQCM study of the ion exchange behaviour of polypyrrole with different counterions in different electrolytes. Electrochim Acta 50:1547
Kriván E, Peintler G, Visy C (2005) Matrix rank analysis of spectral studies on the electropolymerisation and discharge process of conducting polypyrrole/dodecyl sulfate films. Electrochim Acta 50:1529
Khomenko VG, Barsukov VZ, Katashinskii AS (2005) The catalytic activity of conducting polymers toward oxygen reduction. Electrochim Acta 50:1675
Hien NTL, Garcia B, Pailleret A, Deslouis C (2005) Role of doping ions in the corrosion protection of iron by polypyrrole films. Electrochim Acta 50:1747
Wang J (2005) Nanomaterial-based electrochemical biosensors. Analyst 130:421
Patolsky F, Zheng G, Lieber CM (2006) Nanowire-based biosensors. Anal Chem 78:4260
Pumera M, Sánchez S, Ichinose I, Tang J (2007) Electrochemical nanobiosensors. Sens. Actuat B: Chem. 123:1195
Rawal R, Chawla S, Pundir CS (2012) An electrochemical sulfite biosensor based on gold coated magnetic nanoparticles modified gold electrode. Biosens. Bioelectron. 31:144
Tu W, Lei J, Ju H (2008) Noncovalent nanoassembly of porphyrin on single-walled carbon nanotubes for electrocatalytic reduction of nitric oxide and oxygen. Electrochem Commun 10:766
Molinero-Abad B, Alonso-Lomillo MA, Dominguez-Renedo O, Arcos-Martinez MJ (2013) Amperometric determination of sulfite using screen-printed electrodes modified with metallic nanoparticles. Microchim Acta 180:1351
Song M-J, Kim J, Lee S, Lee J-H, Lim D, Hwang S, Whang D (2010) Pt-polyaniline nanocomposite on boron-doped diamond electrode for amperometic biosensor with low detection limit. Microchim Acta 171:249
Liu F-J, Huang L-M, Wen T-C, Gopalan A (2007) Large-area network of polyaniline nanowires supported platinum nanocatalysts for methanol oxidation. Synth. Metals 157:651
Xu G, Adeloju SB, Wu Y, Zhang X (2012) Modification of polypyrrole nanowires array with platinum nanoparticles and glucose oxidase for fabrication of a novel glucose biosensor. Anal Chim Acta 755:100
Faulkner LR (2001) Bard AJ electrochemical methods: fundamentals and applications, 2nd ed ed. Wiley, New York
Anicet N, Bourdillon C, Moiroux J, Savéant J-M (1998) Electron Transfer in Organized Assemblies of Biomolecules. Step-by-Step Avidin/Biotin Construction and Dynamic Characteristics of a Spatially Ordered Multilayer Enzyme Electrode. J. Phys. Chem. B 102:9844
You C, Li X, Zhang S, Kong J, Zhao D, Liu B (2009) Electrochemistry and biosensing of glucose oxidase immobilized on Pt-dispersed mesoporous carbon. Microchim Acta 167:109
Lingane JJ (1964) Chronopotentiometric study of the redox characteristics of PtCl6 2− and PtCl4 2− at a platinum electrode. J Electroanal Chem 7:94
Holdcroft S, Funt BL (1988) Preparation and electrocatalytic properties of conducting films of polypyrrole containing platinum microparticulates. J Electroanal Chem and Interfac Electrochem 240:89
Yuan YJ, Adeloju SB, Wallace GG (1999) In-situ electrochemical studies on the redox properties of polypyrrole in aqueous solutions. European Polymer J. 35:1761
Ansari R (2009) In-situ cyclic voltammetry and cyclic resistometry analyses of conducting electroactive polymer membranes. Int J ChemTech Research 1:1398
Adeloju SB, Barisci JN, Wallace GG (1996) Electroimmobilisation of sulphite oxidase into a polypyrrole film and its utilisation for flow amperometric detection of sulphite. Anal Chim Acta 332:145
Adeloju SB, Shaw SJ, Wallace GG (1994) Polypyrrole-based amperometric biosensor for sulfite determination. Electroanalysis 6:865
Long GL, Winefordner JD (1983) Limit of detection a closer look at the IUPAC definition. Anal Chem 55:712A
Ehrmeyer SS, Laessig RH (1987) An assessment of the use of fixed limits to characterize intralaboratory performance by proficiency testing. Clin Chem 33:1901
Westgard JO, Westgard SA (2006) The quality of laboratory testing today: an assessment of σ metrics for analytic quality using performance data from proficiency testing surveys and the CLIA criteria for acceptable performance. Am. J. Clin. Path. 125:343
Acknowledgment
Shahid Hussain is grateful to Monash University for providing Monash Graduate Scholarship (MGS)/International Postgraduate Research Scholarship (IPRS) to support this research. The assistance provided by Dr. Xi-Ya Fang with Scanning Electron Microscopy measurement is also acknowledged.
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Adeloju, S., Hussain, S. Potentiometric sulfite biosensor based on entrapment of sulfite oxidase in a polypyrrole film on a platinum electrode modified with platinum nanoparticles. Microchim Acta 183, 1341–1350 (2016). https://doi.org/10.1007/s00604-016-1748-0
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DOI: https://doi.org/10.1007/s00604-016-1748-0