Synthesis and characterization of monomeric and polymeric Pd(II) and Pt(II) complexes of 3,4-ethylenedioxythiophene-functionalized phosphine ligands

Velauthamurty, K.; Higgins, Simon J.; Rajapakse, R.M.G.; Bacsa, John; Zalinge, Harm van; Nichols, Richard J.; Haiss, Wolfgang

doi:10.1039/b817210b

Cited by 19 publications

(8 citation statements)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We attribute this peak to an irreversible oxidation of the PEDOT coating, as observed elsewhere in PEDOT electro-synthesis literature. 39,40 Voltammetric deposition of EDOT without the presence of a counter ion in solution does not form a coating or generate an oxidative current (Figure S-1). …”

Section: Resultsmentioning

confidence: 99%

Biocompatible PEDOT:Nafion Composite Electrode Coatings for Selective Detection of Neurotransmitters in Vivo

et al. 2015

View full text Add to dashboard Cite

A Nafion and PEDOT-containing composite polymer has been electropolymerized on carbon-fiber microelectrodes with the goal of creating a mechanically stable, robust, and controllable electrode coating that increases the selectivity and sensitivity of in vivo electrochemical measurements. The coating is deposited on carbon-fiber microelectrodes by applying a triangle waveform from + 1.5 V to −0.8 V and back in a dilute solution of ethylenedioxythiophene (EDOT) and Nafion in acetonitrile. Scanning electron microscopy (SEM) demonstrated that the coating is uniform and ~100 nm thick. Energy-dispersive x-ray spectroscopy (EDX) demonstrated that both sulfur and fluorine are present in the coating, indicating the incorporation of PEDOT (poly(3,4-ethylenedioxythiophene) and Nafion. Two types of PEDOT:Nafion coated electrodes were then analyzed electrochemically. PEDOT:Nafion-coated electrodes made using 200 µM EDOT exhibit a 10–90 response time of 0.46 ± 0.09 seconds vs. 0.45 ± 0.11 seconds for an uncoated fiber in response to a 1.0 µM bolus of dopamine. The electrodes coated using a higher EDOT concentration (400 µM) are slower with a 10–90 response time of 0.84 ± 0.19 seconds, but display increased sensitivity to dopamine, at 46 ± 13 nA/µM, compared to 26 ± 6 nA/µM for the electrodes coated in 200 µM EDOT and 13 ± 2 nA/µM for an uncoated fiber. PEDOT:Nafion-coated electrodes were lowered into the nucleus accumbens of a rat, and both spontaneous and electrically evoked dopamine release were measured. In addition to improvements in sensitivity and selectivity, the coating dramatically reduces acute in vivo biofouling.

show abstract

Section: Resultsmentioning

confidence: 99%

Biocompatible PEDOT:Nafion Composite Electrode Coatings for Selective Detection of Neurotransmitters in Vivo

et al. 2015

View full text Add to dashboard Cite

show abstract

“…COOH‐Functionalized EDOT derivatives were synthesized by Yu and co‐workers, and electropolymerized thin PEDOT films exhibited good biocompatibility, very low intrinsic cytotoxicity, and displayed no inflammatory response upon implantation, making them ideal for biosensing and bioengineering applications . 2‐Chloromethyl‐2,3‐dihydrothieno[3,4‐ b ][1,4]dioxine (EDOT‐MeCl), as one of EDOT derivatives, is a versatile intermediate to easily access functionalized EDOT derivatives and their corresponding polymers . By these aspects, we might conjecture that polymerization of EDOT‐MeCl and properties and characterizations of its polymer should be studied and be necessary for the design and development of novel PEDOT derivatives with a variety of excellent properties.…”

Section: Introductionmentioning

confidence: 99%

Electrosynthesis, characterization, and application of poly(3,4‐ethylenedioxythiophene) derivative with a chloromethyl functionality

Zhang

Wen

Yao

et al. 2013

J of Applied Polymer Sci

View full text Add to dashboard Cite

Poly(2-chloromethyl-2,3-dihydrothieno [3,4-b][1,4]dioxine), a chloromethyl functionalized poly(3,4-ethylenedioxythiophene) derivative (PEDOT-MeCl), was synthesized electrochemically via the potentiostatic polymerization of its monomer in dichloromethane solution containing suitable tetrabutylammonium tetrafluoroborate, then it was used for the characterization of film properties and the fabrication of electrochemical sensor. The properties of the resulting PEDOT-MeCl film were characterized by different methods such as cyclic voltammetry, electrochemical impedance spectroscopy, Fourier transform infrared and ultraviolet-visible techniques, scanning electron microscope, and thermogravimetric analysis. The PEDOT-MeCl film displayed a good reversible redox activity, remarkable capacitance properties, good thermal stability, rough, and porous structure, especially fluorescent spectra indicated that PEDOT-MeCl was a blue-emitter with maximum emission centered at 396 and 398 nm. Finally, the PEDOT-MeCl film was employed for the fabrication of the sensing electrode, and dopamine was chosen as a model analyte for the application of the electrochemical sensor. Results indicated that the PEDOT-MeCl film as sensing interface was feasible, and studies of these film properties were very beneficial for studying properties and applications of other poly(3,4-ethylenedioxythiophene) derivative films.

show abstract

“…PEDOT has several applications such as through-hole plating of printed circuit boards, antistatic coatings for cathode ray tubes (CRT) which prevent dust attraction, 6 primers for electrostatic spray coating of plastics, 7 sensors, 8,9 transparent electrodes for inorganic electroluminescent devices 10 in capacitors, 11,12 and in fuel cell membrane applications. 13 The nanocomposites of conducting polymers and inorganic materials have attracted a great interest of research recently [14][15][16] owing to their improved properties over their individual parent components, which are resulting from the synergistic effects of properties of the two materials. We have specialized in developing several preparative techniques for nanocomposites of montmorillonite (MMT) and fuller's earth (FE) with various electronically conductive polymers such as polyaniline and polypyrrole (PPY) and their characterization.…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites of poly(3,4-ethylenedioxythiophene) and montmorillonite clay: synthesis and characterization

Rajapakse

Higgins

Velauthamurty

et al. 2010

Journal of Composite Materials

Self Cite

View full text Add to dashboard Cite

Poly(3,4-ethylenedioxythiophene) (PEDOT)/montmorillonite (MMT) clay nanocomposites were prepared for the first time, by exchanging exchangeable cations in the MMT interlayer with Ce(IV) followed by insertion of ethylenedioxythiophene monomer to result in spontaneous polymerization to give PEDOT—Ce(III)—MMT nanocomposites. The nanocomposites thus prepared were characterized by electrochemical methods, elemental analysis, X-ray diffraction (XRD), Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, and in situ conductivity measurements. Cyclic voltammograms of PEDOT—Ce(III)—MMT in 0.1 M H2SO 4 on glassy carbon electrode shows characteristics redox behavior that appear in Ce(IV)/Ce(III) and in Ce(IV)—MMTunder identical conditions together with typical electrochemical behavior of PEDOT. Further XRD results confirm that PEDOT has been intercalated within the MMT interlayer and the electrochemical impedance spectroscopy analysis implies that the organics are in their electronically conducting polymer form with significant electronic conductivity. As such, these nanocomposites may find applications in rechargeable batteries and photovoltaic devices as electrode materials and as antistatic coatings for electrical appliances.

show abstract

Synthesis and characterization of monomeric and polymeric Pd(II) and Pt(II) complexes of 3,4-ethylenedioxythiophene-functionalized phosphine ligands

Cited by 19 publications

References 65 publications

Biocompatible PEDOT:Nafion Composite Electrode Coatings for Selective Detection of Neurotransmitters in Vivo

Biocompatible PEDOT:Nafion Composite Electrode Coatings for Selective Detection of Neurotransmitters in Vivo

Electrosynthesis, characterization, and application of poly(3,4‐ethylenedioxythiophene) derivative with a chloromethyl functionality

Nanocomposites of poly(3,4-ethylenedioxythiophene) and montmorillonite clay: synthesis and characterization

Contact Info

Product

Resources

About