Applications of ionic liquids in electrochemical sensors

Wei, Di; Ivaska, Ari

doi:10.1016/j.aca.2007.12.011

Cited by 675 publications

(422 citation statements)

References 132 publications

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“…[32][33][34][35][36][37][38][39][40][41][42][43][44][45] Ionogels can be obtained by hybridizing ILs with low molecular weight organic gelators, inorganics (e.g. carbon nanotubes, silica, etc.…”

Section: Introductionmentioning

confidence: 99%

Agarose processing in protic and mixed protic–aprotic ionic liquids: dissolution, regeneration and high conductivity, high strength ionogels

et al. 2012

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We have shown that low viscosity alkyl or hydroxyalkyl ammonium formate (ILs) can dissolve agarose, and higher dissolution can be achieved in the mixed, alkyl or hydroxyalkyl ammonium + imidazolium or pyridinium ILs. The polarity parameters α, β, π*, E T (30) and E T N of these IL systems were measured to explain their dissolution ability for agarose. Dissolved agarose was either regenerated using methanol as a precipitating solvent or ionogels were formed by cooling the agarose-IL solutions to ambient temperature. Exceptionally high strength ionogels were obtained from the agarose solutions in N-(2-hydroxyethyl)-ammonium formate or its mixture with 1-butyl-3-methylimidazolium chloride. Regenerated material and ionogels are characterized for their possible degradation/conformational changes and gel properties (thermal hysteresis, strength, viscoelasticity and conductivity) respectively. A high strength, high conducting ionogel was demonstrated to be able to build an electrochromic window. Such ionogels can also be utilized for other soft matter electronic devices and biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Agarose processing in protic and mixed protic–aprotic ionic liquids: dissolution, regeneration and high conductivity, high strength ionogels

et al. 2012

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“…These plastic-based devices (105) coupled with ILs offer potential advantages for the preparation of low-cost, reliable, and long-term stable biosensors. The mechanism of protein stabilization in ILs is still under debate, but it seems that hydrogen bonding and electrostatic interactions between the IL and the enzyme may increase the kinetic barrier for the unfolding of enzymes (86,101,(106)(107)(108)(109). It is important to note that this is not a general trend in ILs and that some ILs have been known to denature proteins (83).…”

Section: Ionic Liquids In Biosensorsmentioning

confidence: 99%

“…Perhaps the most common use of ionogels is to provide a suitable solid-state matrix for a stable encapsulation of nanostructured materials such as proteins and enzymes (86,235,265). For instance, PILs have been used for the electrochemical sensing of glucose.…”

Section: Biomedical Applications Of Ionogelsmentioning

confidence: 99%

Properties and Customization of Sensor Materials for Biomedical Applications

Zuliani¹,

Curto²,

Matzeu³

et al. 2014

Comprehensive Materials Processing

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“…These properties make ILs particularly suitable for their use in electrochemical sensors [26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

A simple approach for fabricating solid-contact ion-selective electrodes using nanomaterials as transducers

Liang

Yin

Qin

2015

Analytica Chimica Acta

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A general method for fabricating nanomaterials based solid-contact ISEs is developed. The mixture of an ionic liquid and a nanomaterial is used as intermediate layer.The detection limits of the proposed sensors are in the nanomolar range. The developed electrodes exhibit a good response time and excellent stability. A simple and robust approach for the development of solid-state ion-selective electrodes (ISEs) using nanomaterials as solid contacts is described. The electrodes are fabricated by using the mixture of an ionic liquid (IL) and a nanomaterial as intermediate layer, formed by melting the IL. Tetradodecylammonium tetrakis(4-chlorophenyl)borate (ETH 500) is chosen as an model of IL to provide strong adhesion between the inner glassy carbon electrode and the intermediate layer. Nanomaterials including single-walled carbon nanotubes (SWCNTs) and graphene were used as active ion-to-electron transducers between the glassy carbon electrode and the ionophore-doped ISE membrane. By using the proposed approach, the solid-contact Cu 2+ -and Pb 2+ -selective electrodes based on ETH 500/SWCNTs and ETH 500/ graphene as transducers, respectively, have been fabricated. The proposed electrodes show detection limits in the nanomolar range and exhibit a good response time and excellent stability.

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Applications of ionic liquids in electrochemical sensors

Cited by 675 publications

References 132 publications

Agarose processing in protic and mixed protic–aprotic ionic liquids: dissolution, regeneration and high conductivity, high strength ionogels

Agarose processing in protic and mixed protic–aprotic ionic liquids: dissolution, regeneration and high conductivity, high strength ionogels

Properties and Customization of Sensor Materials for Biomedical Applications

A simple approach for fabricating solid-contact ion-selective electrodes using nanomaterials as transducers

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