Studies on ferrocene organothiol monolayer as an intermediate phase of potentiometric sensors with gold inner contact

Grygołowicz‐Pawlak, Ewa; Wyglądacz, Katarzyna; Sęk, Sławomir; Bilewicz, Renata; Brzózka, Zbigniew; Malinowska, Elżbieta

doi:10.1016/j.snb.2004.12.038

Cited by 51 publications

(32 citation statements)

References 18 publications

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“…The ferrocene group ensured excellent reversibility of the redox system (differences between anodic and cathodic peak potential were lower than 30 mV). The contact angle measurements, V a (H 2 O), revealed that the hydrophobicity of gold surface covered with designed monolayers (V a ¼ 70 AE 48 and 79 AE 68 for SAM I and II, respectively) is much higher comparing to bare gold (V a ¼ 60 AE 88) [24,25]. Additional incorporation of highly lipophilic n-hexanethiol (V a ¼ 103 AE 48) within monolayers structures in 3/7 molar ratio significantly improved they lipophilicity (V a ¼ 83 AE 48 for SAM I þ III and V a ¼ 94 AE 58 for SAM II þ III).Potentiometric studies revealed significant improvement of performance of ISE applying monolayers comparing to these without any intermediate layer [24].…”

Section: Intermediate Layers For Improved Performance Of Ssesmentioning

confidence: 99%

“…The presence of molecules adsorbed on the gold surface was confirmed by scanning tunneling microscopy [24,25]. Redox properties of obtained monolayers were studied by cyclic voltammetry [24,25].…”

Section: Intermediate Layers For Improved Performance Of Ssesmentioning

confidence: 99%

“…Redox properties of obtained monolayers were studied by cyclic voltammetry [24,25]. Relevant parameters as peak current, its surface, position and shape were investigated.…”

Section: Intermediate Layers For Improved Performance Of Ssesmentioning

confidence: 99%

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Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

et al. 2009

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Potentiometric microelectrodes are attractive sensor tools for the determination of ionic components in liquids, in wide area of applications, from environmental monitoring to medical diagnostics. Appropriate design of miniaturized transducers based on solid-state technology and the fabrication of dedicated flow multiparameter systems allow the reduction of sample volume and reagents loss. In this overview various examples of the design, performance, and applications of solid-state potentiometric microelectrodes based on back-side contact transducers for flow-cell analysis are presented. The presented results summarize the research works on that field that were conduced in CSRG/Warsaw University of Technology.

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Section: Intermediate Layers For Improved Performance Of Ssesmentioning

confidence: 99%

Section: Intermediate Layers For Improved Performance Of Ssesmentioning

confidence: 99%

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Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

et al. 2009

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“…However, the original solid-contact electrodes suffer from potential instability and irreproducibility which have mainly been attributed to the lack of a welldefined redox couple and also the formation of a thin aqueous layer at the membrane/substrate interface [11]. Numerous works have been done to solve these problems by the utilization of ion-to-electron transducers [12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Single‐Piece Solid‐Contact Pb²⁺‐Selective Electrodes Based on Thiophene Oligomer

Yuan

et al. 2012

Electroanalysis

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A single-piece solid-contact Pb 2 + -selective electrode was prepared by adding a thiophene oligomer into the ion-selective cocktail directly. The one-step fabrication yielded an electrode with Nernstian response spanning a wide concentration range of 10 À3 -10 À8 mol L À1, and detection limit as low as 5.6 10 À9 mol L À1. The electrode had a quick response time of approximately 10-15 s and showed excellent selectivity over the most common univalent and divalent cations. The practical application of the proposed electrode has been tested by determining Pb 2 + in real water samples.

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“…In addition, the same electron transfer theory concerning blocking SAMs might be applied to this system [9,10]. The most popular electroactive SAMs contain ferrocenes [11,12], ruthenium complexes [13,14], phthalocyanines [15 -17], metalloporphyrins [18,19], cytochromes [20] and atrazine [21], just to name a few.…”

Section: Introductionmentioning

confidence: 99%

Electroactive Dipyrromethene‐Cu(II) Monolayers Deposited onto Gold Electrodes for Voltammetric Determination of Paracetamol

et al. 2008

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Dipyrromethene-Cu(II) derivatives possessing two dodecane alkyl chains have been used for the modification of gold electrodes. Electroactive host molecules have been incorporated into a lipophilic dodecanethiol SAM deposited onto gold electrodes through hydrophobic and van der Waals interactions (embedment technique). The presence of dipyrromethene-Cu(II) redox centers on the electrode surface was proved by cyclic voltammetry and Osteryoung square-wave voltammetry. The Au electrodes incorporating redox active Cu(II)-dipyrromethene SAMs were used for the direct voltammetric determination of paracetamol in human plasma.

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Studies on ferrocene organothiol monolayer as an intermediate phase of potentiometric sensors with gold inner contact

Cited by 51 publications

References 18 publications

Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

Single‐Piece Solid‐Contact Pb²⁺‐Selective Electrodes Based on Thiophene Oligomer

Electroactive Dipyrromethene‐Cu(II) Monolayers Deposited onto Gold Electrodes for Voltammetric Determination of Paracetamol

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Studies on ferrocene organothiol monolayer as an intermediate phase of potentiometric sensors with gold inner contact

Cited by 51 publications

References 18 publications

Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

Potentiometric Studies and Various Applications of Solid State Electrodes Based on Silicon and Epoxy Glass Structures – an Overview

Single‐Piece Solid‐Contact Pb2+‐Selective Electrodes Based on Thiophene Oligomer

Electroactive Dipyrromethene‐Cu(II) Monolayers Deposited onto Gold Electrodes for Voltammetric Determination of Paracetamol

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Product

Resources

About

Single‐Piece Solid‐Contact Pb²⁺‐Selective Electrodes Based on Thiophene Oligomer