A review on electrodes modified with ionic liquids

Opałło, Marcin; Leśniewski, Adam

doi:10.1016/j.jelechem.2011.01.008

Cited by 339 publications

(180 citation statements)

References 313 publications

(672 reference statements)

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“…[19][20][21] Room temperature ionic liquids (ILs) are promising electrolytes because they possess negligible vapour pressure, low flammability, high ionic conductivity and high electrochemical stability. 22,23 Amongst a variety of ILs, choline-based ILs are considered to be promising, low toxicity ILs for a variety of biomedical applications. [24][25][26] This is mostly due to the fact that choline (more correctly cholinium) is a naturally occurring cation that shows very low toxicity and it can work as a cell signaling agent.…”

Section: Introductionmentioning

confidence: 99%

Biocompatible Ionic Liquid–Biopolymer Electrolyte-Enabled Thin and Compact Magnesium–Air Batteries

Jia

Yang

Wang

et al. 2014

ACS Appl. Mater. Interfaces

105

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With the surge of interest in miniaturized implanted medical devices (IMDs), implantable power sources with small dimensions and biocompatibility are in high demand. Implanted battery/supercapacitor devices are commonly packaged within a case that occupies a large volume, making miniaturization difficult. In this study, we demonstrate a polymer electrolyte-enabled biocompatible magnesium-air battery device with a total thickness of approximately 300 μm. It consists of a biocompatible polypyrrole-para(toluene sulfonic acid) cathode and a bioresorbable magnesium alloy anode. The biocompatible electrolyte used is made of choline nitrate (ionic liquid) embedded in a biopolymer, chitosan. This polymer electrolyte is mechanically robust and offers a high ionic conductivity of 8.9 x 10-3 S cm-1. The assembled battery delivers a maximum volumetric power density of 3.9 W L-1, which is sufficient to drive some types of IMDs, such as cardiac pacemakers or biomonitoring systems. This miniaturized, biocompatible magnesium-air battery may pave the way to a future generation of implantable power sources. Abstract:With the surge of interest in miniaturized implanted medical devices (IMDs), implantable power sources with small dimensions and biocompatibility are in high demand. Implanted battery/supercapacitor devices are commonly packaged within a case that occupies a large volume making miniaturization difficult. In this study, we demonstrate a polymer electrolyte enabled biocompatible magnesium-air battery device with a total thickness of approximately 300 µm. It consists of a biocompatible polypyrrole-para(toluene sulfonic acid) cathode and a bioresorbable magnesium alloy anode. The biocompatible electrolyte used is made of choline nitrate (ionic liquid) embedded in a biopolymer, chitosan. This polymer electrolyte is mechanically robust and offers a high ionic conductivity of 8.9×10 -3 S cm -1 . The assembled battery delivers a maximum volumetric power density of 3.9 W L -1 , which is sufficient to drive some types of IMDs such as cardiac pacemakers or bio-monitoring systems. This miniaturized, biocompatible magnesium-air battery may pave a way to the future generation of implantable power sources.

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Section: Introductionmentioning

confidence: 99%

Biocompatible Ionic Liquid–Biopolymer Electrolyte-Enabled Thin and Compact Magnesium–Air Batteries

Jia

Yang

Wang

et al. 2014

ACS Appl. Mater. Interfaces

105

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“…[11] As a new kind of working electrode, carbon ionic liquid electrode (CILE) has been used in the preparation of electrochemical sensor. [12] CILE is prepared by incorporating ionic liquid (IL) as the binder and the modifier in traditional carbon paste electrode (CPE), which has been elucidated with the advantages such as easy preparation, good reversibility, high sensitivity and the ability to lower the overpotential of electroactive compounds. [13] CILE can also be decorated to get the modified electrode.…”

Section: Introductionmentioning

confidence: 99%

Direct Electrochemistry of Horseradish Peroxidase on NiO Nanoflower Modified Electrode and Its Electrocatalytic Activity

Liang¹,

Li²,

Wang³

et al. 2016

Croat. Chem. Acta

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Abstract:In this paper nickel oxide (NiO) nanoflower was synthesized and used for the realization of direct electrochemistry of horseradish peroxidase (HRP). By using carbon ionic liquid electrode (CILE) as the substrate electrode, NiO-HRP composite was casted on the surface of CILE with chitosan (CTS) as the film forming material and the modified electrode was denoted as CTS/NiO-HRP/CILE. UV-Vis absorption and FT-IR spectra confirmed that HRP retained its native structure after mixed with NiO nanoflower. Direct electron transfer of HRP on the modified electrode was investigated by cyclic voltammetry with a pair of quasi-reversible redox waves appeared, indicating that the presence of NiO nanoflower on the electrode surface could accelerate the electron transfer rate between the electroactive center of HRP and the substrate electrode. Electrochemical behaviors of HRP on the modified electrode were carefully investigated. The HRP modified electrode showed excellent electrocatalytic activity to the reduction of trichloroacetic acid with wider linear range and lower detection limit. Therefore the presence of NiO nanoflower could provide a friendly biocompatible interface for immobilizing biomolecules and keeping their native structure. The fabricated electrochemical biosensor displayed the advantages such as high sensitivity, good reproducibility and long-term stability.

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“…Another growing field for ILs is biosensing, where they are used for the modification of electrodes, acting as a binder for carbon matrix (''Bucky gel'') electrodes or for the immobilisation of bioreceptors. 22 We recently demonstrated the application of ILs as an electrolyte for the development of organic electrochemical transistors (OECTs), for sensing glucose 11 and lactic acid (LA). 23 For the latter, the IL was incorporated into a polymeric matrix (an ionogel) to achieve a solid-state electrolyte.…”

Section: Introductionmentioning

confidence: 99%

Probing the specific ion effects of biocompatible hydrated choline ionic liquids on lactate oxidase biofunctionality in sensor applications

Curto

Scheuermann

Owens

et al. 2014

Phys. Chem. Chem. Phys.

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This paper presents an extended study on the ion effects of a series of biocompatible hydrated choline based ionic liquids (ILs) on lactate oxidase (LOx), an important enzyme in biosensing technology for the in vitro detection of lactic acid. Secondary structural analysis revealed changes in the protein conformation in hydrated ILs, while thermal unfolding/aggregation dynamics showed different profiles in the presence or absence of ILs. Moreover, LOx thermally denaturised at 90 1C showed residual activity in the presence of chloride and dihydrogen phosphate anions. Kinetic and lifetime studies were also performed, providing a better understanding of the ion effects of ILs on the biocatalytic activity of the enzyme.

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A review on electrodes modified with ionic liquids

Cited by 339 publications

References 313 publications

Biocompatible Ionic Liquid–Biopolymer Electrolyte-Enabled Thin and Compact Magnesium–Air Batteries

Biocompatible Ionic Liquid–Biopolymer Electrolyte-Enabled Thin and Compact Magnesium–Air Batteries

Direct Electrochemistry of Horseradish Peroxidase on NiO Nanoflower Modified Electrode and Its Electrocatalytic Activity

Probing the specific ion effects of biocompatible hydrated choline ionic liquids on lactate oxidase biofunctionality in sensor applications

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