Dopamine amperometric detection at a ferrocene clicked PEDOT:PSS coated electrode

Scavetta, Erika; Mazzoni, Rita; Mariani, Federica; Margutta, Riccardo G.; Bonfiglio, Annalisa; Demelas, Monia; Fiorilli, Sonia Lucia; Marzocchi, Marco; Fraboni, Beatrice

doi:10.1039/c4tb00169a

Cited by 38 publications

(40 citation statements)

References 43 publications

(44 reference statements)

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“…Attaching a moiety such as this to the polymer films, and showing that the modified material responds dramatically to the electrical activity of the environment, would show the potential of similar chemistries for making chemical sensors based on these materials. 40 The electrochemical behavior of the resulting polymer films was investigated by CV. The comparison of the CV curves of the pristine and modified films is shown in Fig.…”

Section: Post-polymerization Functionalization and Electrochemical Chmentioning

confidence: 99%

Post-polymerization functionalization of poly(3,4-propylenedioxythiophene) (PProDOT) via thiol–ene “click” chemistry

et al. 2015

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The surface functionalization of conjugated polymers such as the poly(alkoxythiophenes) poly(3,4ethylenedioxythiophene) (PEDOT) and poly(3,4-propylenedioxythiophene) (PProDOT) provides a potential means for systematically tailoring their physical properties. We previously reported the synthesis of an alkene-functionalized 3,4-propylenedioxy-thiophene (ProDOT) derivative that could be readily modified through thiol-ene ''click'' chemistry. Here, we investigated the post-polymerization modification of PProDOT surfaces by using a dialkene functionalized variant (ProDOT-diene). The chemical structure of the ProDOT-diene monomer was confirmed by Nuclear Magnetic Resonance (NMR) and Fourier Transform Infrared spectroscopy (FTIR). The ProDOT-diene monomer was either chemically or electrochemically polymerized into the PProDOT-diene polymer, and then subsequently modified with alkyl, PEG, or ferrocene moieties via radical-based thiol-ene chemistry. We found that the normally insoluble PProDOT-diene could be converted into a soluble derivative by grafting alkyl groups onto the polymer chains after chemical polymerization. When electrochemically deposited on indiumtin oxide (ITO) glass electrodes, the conductivity, electroactivity and contact angles of the modified PProDOT-diene films could be tuned over a broad range. Scanning Electron Microscopy (SEM) revealed that post-polymerization modification did not significantly alter the surface morphology of the PProDOT-diene films. Overall, this method allows for efficient, facile tuning of the surface chemistry of poly(alkylthiophene) films, making it possible to tailor properties such as conductivity and wettability for different applications.

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Section: Post-polymerization Functionalization and Electrochemical Chmentioning

confidence: 99%

Post-polymerization functionalization of poly(3,4-propylenedioxythiophene) (PProDOT) via thiol–ene “click” chemistry

et al. 2015

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“…Scavetta et al prepared a CME by coating ITO electrodes with a ferrocene-functionalized poly(3,4-ethylenedioxythiophene):poly(styrene-4-sulfonate) (PEDOT:PSS) film [110]. The two-step procedure implied the electrodeposition of azidomethyl functionalized 3,4-ethylenedioxythiophene (PEDOT-N3) followed by copper-catalyzed azide-alkyne cycloaddition of ethynylferrocene.…”

Section: Botelho Do Rego Et Al Performed a Cv/xps Investigation Of Tmentioning

confidence: 99%

X-Ray Photoelectron Spectroscopic Characterization of Chemically Modified Electrodes Used as Chemical Sensors and Biosensors: A Review

2015

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Abstract:The characterization of chemically modified sensors and biosensors is commonly performed by cyclic voltammetry and electron microscopies, which allow verifying electrode mechanisms and surface morphologies. Among other techniques, X-ray photoelectron spectroscopy (XPS) plays a unique role in giving access to qualitative, quantitative/semi-quantitative and speciation information concerning the sensor surface. Nevertheless, XPS remains rather underused in this field. The aim of this paper is to review selected articles which evidence the useful performances of XPS in characterizing the top surface layers of chemically modified sensors and biosensors. A concise introduction to X-ray Photoelectron Spectroscopy gives to the reader the essential background. The application of XPS for characterizing sensors suitable for food and environmental analysis is highlighted.

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“…They decorated the indium-tin-oxide (ITO) electrodes through electrodeposition of PEDOT-N 3 followed by CuAAC with 2. Afterwards, the Fc-decorated electrode could be used as an amperometric sensor for the detection of dopamine with an average sensitivity of 196 mA M -1 cm -2 , and a limit of detection of 1 lM [44].…”

Section: Click Modification Of General Polymersmentioning

confidence: 99%

Click Chemistry: A Powerful and Versatile Methodology for Preparation of Ferrocene-Containing Polymers

Yao

Sun

Qin

et al. 2014

J Inorg Organomet Polym

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Ferrocene-containing polymers (FcPs) have attracted much research interest in the last decade, due to their unique properties and enormous applications. However, it is a great synthetic challenge to prepare FcPs before the advent of click chemistry. In this review, we summarized the recent research efforts on synthesizing FcPs through click reactions, which include click modification of preformed polymers and click polymerization of ferrocene (Fc) containing monomers. Due to the containing Fc moieties, the FcPs enjoy excellent redox activity, thermal stability, electrochemical property, and magnetism. Accordingly, they are promising to be used as electro-

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Dopamine amperometric detection at a ferrocene clicked PEDOT:PSS coated electrode

Abstract: An amperometric sensor based on an ITO electrode coated with ferrocene clicked PEDOT:PSS is described and the electrocatalytical performance of the device towards dopamine is assessed.

Cited by 38 publications

References 43 publications

Post-polymerization functionalization of poly(3,4-propylenedioxythiophene) (PProDOT) via thiol–ene “click” chemistry

Post-polymerization functionalization of poly(3,4-propylenedioxythiophene) (PProDOT) via thiol–ene “click” chemistry

X-Ray Photoelectron Spectroscopic Characterization of Chemically Modified Electrodes Used as Chemical Sensors and Biosensors: A Review

Click Chemistry: A Powerful and Versatile Methodology for Preparation of Ferrocene-Containing Polymers

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