Purification and characterisation of poly(2-methoxyaniline-5-sulfonicacid acid)

Masdarolomoor, Fatemeh; Innis, Peter C.; Ashraf, Syed A.; Wallace, Gordon G.

doi:10.1016/j.synthmet.2005.07.249

Cited by 33 publications

(83 citation statements)

References 7 publications

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“…The metallopolymer, [Ru(bpy) 2 PVP 10 ](ClO 4 ) 2 , was prepared as described previously [28]. PMAS synthesis has been reported previously for both chemical and electrochemical synthesis methods [9]. MAS was provided by Mitsubishi Rayon, Japan and purified by acid base crystallisation before polymerisation.…”

Section: Materials and Reagentsmentioning

confidence: 99%

“…Where appropriate, working electrodes were modified by applying a drop (≈200 LtoITO electrode and ∼30 L onto a glassy carbon electrode) of a 1.0% ethanolic solutions of [Ru(bpy) 2 (PVP) 10 ] 2+ , with typical surface coverages of (2.4 ± 0.7) × 10 −9 mol cm −2 .…”

Section: Composite Synthesismentioning

confidence: 99%

“…PMAS is a fully sulfonated conducting polymer that has been synthesised by chemical and electrochemical polymerisation of 2-methoxyaniline 5-sulfonic acid, MAS [9,10]. In-depth characterisation of the electrochemical and photochemical properties of these two distinctive fractions have also been reported [11].…”

Section: Introductionmentioning

confidence: 99%

“…We have recently reported that oxidation of guanines in DNA by electrochemically generated [Ru(bpy) 2 (PVP) 10 ] 2+ in ultrathin films leads to photoexcited [Ru(bpy) 2 ] 2+* sites in the film, generating an ECL signal upon relaxation back to the ground state [22]. This thin-film ECL approach has been exploited to detect DNA damage induced by styrene oxide.…”

Section: Introductionmentioning

confidence: 99%

“…The [Ru(bpy) 2 (PVP) 10 ] 2+ films contain ruthenium centres that are electrochemically isolated, while in a PMAS-Ru(bpy) 2 2+ composite an electrochemically active backbone provides a mechanism for communication between adjacent ruthenium centres absence in the systems discussed above. The effect of an electronically conducting polymer on the ECL response, charge transport and photochemical properties of a metal centre are examined in this contribution.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

The influence of poly(2-methoxyaniline-5-sulfonic acid) on the electrochemical and photochemical properties of a highly luminescent ruthenium complex

Dennany

O’Reilly

Innis

et al. 2008

Electrochimica Acta

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Immobilisation of a luminescent material on an electrode surface is well known to substantially modulate its photophysical and electrochemical properties. Here a positively charged ruthenium metal complex ([Ru(bpy) 3 ] 2+ ) is immobilised on all electrode surface by ion paring with a sulfonated conducting polymer poly(2-methoxyaniline-5-sulfonic acid), (PMAS). Significantly, our study reveals that the electron transport between the ruthenium metal centres can be greatly enhanced due to the interaction with the conducting polymer when both are surface confined. Charge transfer diffusion rates in the present system are an order of magnitude faster than those found where the metal centre is immobilised within a non-conducting polymeric matrix. Electron transport appears to be mediated through the PMAS conjugated structure, contrasting with the electron hopping process typically observed in non-conducting metallopolymers. This increased regeneration rate causes the ruthenium-based electrochemiluminescence (ECL) efficiency to be increased. The impact of these observations on the ECL detection of low concentrations of disease biomarkers is discussed.

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Section: Materials and Reagentsmentioning

confidence: 99%

Section: Composite Synthesismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The influence of poly(2-methoxyaniline-5-sulfonic acid) on the electrochemical and photochemical properties of a highly luminescent ruthenium complex

Dennany

O’Reilly

Innis

et al. 2008

Electrochimica Acta

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show abstract

Materials Processing/Device Fabrication

et al. 2012

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In‐Materio Reservoir Computing in a Sulfonated Polyaniline Network

et al. 2021

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A sulfonated polyaniline (SPAN) organic electrochemical network device (OEND) is fabricated using a simple drop‐casting method on multiple Au electrodes for use in reservoir computing (RC). The SPAN network has humidity‐dependent electrical properties. Under high humidity, the SPAN OEND exhibits mainly ionic conduction, including charging of an electric double layer and ionic diffusion. The nonlinearity and hysteresis of the current–voltage characteristics progressively increase with increasing humidity. The rich dynamic output behavior indicates wide variations for each electrode, which improves the RC performance because of the disordered network. For RC, waveform generation and short‐term memory tasks are realized by a linear combination of outputs. The waveform task accuracy and memory capacity calculated from a short‐term memory task reach 90% and 33.9, respectively. Improved spoken‐digit classification is realized with 60% accuracy by only 12 outputs, demonstrating that the SPAN OEND can manage time series dynamic data operation in RC owing to a combination of rich dynamic and nonlinear electronic properties. The results suggest that SPAN‐based electrochemical systems can be applied for material‐based computing, by exploiting their intrinsic physicochemical behavior.

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Purification and characterisation of poly(2-methoxyaniline-5-sulfonicacid acid)

Cited by 33 publications

References 7 publications

The influence of poly(2-methoxyaniline-5-sulfonic acid) on the electrochemical and photochemical properties of a highly luminescent ruthenium complex

The influence of poly(2-methoxyaniline-5-sulfonic acid) on the electrochemical and photochemical properties of a highly luminescent ruthenium complex

Materials Processing/Device Fabrication

In‐Materio Reservoir Computing in a Sulfonated Polyaniline Network

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