Dissolved Carbon Dioxide Sensing with Phenyl-Linked Carbazole Oxazolones in Ionic Liquid and Ethyl Cellulose Moieties

Celik, Secil; Ertekin, Kadriye; Gündoğdu, Cevher; Ergün, Yavuz; Alp, Serap

doi:10.1080/00387010.2011.603013

Cited by 10 publications

(7 citation statements)

References 31 publications

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“…The utilization of ionic liquid [EMIM][BF 4 ] in ethyl cellulose matrix is seen to result in superior spectral characteristics, showing an atypical isoemmissive point in modified EC matrix at 418 nm. Next, they developed an optical dissolved CO 2 sensor based on the spectrofluorimetric signal changes of the fluorescent carbazole within the above [EMIM][BF 4 ] − containing ethyl cellulose (EC) matrix [ 47 ]. It is important to mention that the above sensor shows a very good detection limit of 500 nM in the form of [HCO 3 ] − for dissolved CO 2 .…”

Section: Ionic Liquids In Optical Co 2 Sensorsmentioning

confidence: 99%

“…For example, a task-specific ionic liquid with an amine (–NH 2 ) group on the cation can capture CO 2 and significantly enhance the solubility of CO 2 in that particular ionic liquid [ 43 ]. A wide range of ionic liquid-based sensors has been developed so far for the detection and quantification of CO 2 gas [ 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 , 69 , 70 ]. These ionic liquid-based CO 2 sensors are either optical-based [ 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ] or electrochemical-based sensors [ 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , ...…”

Section: Introductionmentioning

confidence: 99%

“…Optical CO 2 sensors based on the changes in the absorbance or fluorescence response have been reported by researchers [ 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 ]. Usually, these optical sensors contain a chemically-active sensing agent, which changes the UV-VIS absorbance or fluorescence emission intensity in response to CO 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Usually, these optical sensors contain a chemically-active sensing agent, which changes the UV-VIS absorbance or fluorescence emission intensity in response to CO 2 . Oter et al used ionic liquids 1-methyl-3-butylimidazolium tetrafluoroborate and 1-methyl-3-butylimidazolium bromide in optical CO 2 sensing together with an ion pair form of acid base indicator, bromothymol blue [ 44 , 45 , 46 , 47 , 48 ]. Water-miscible ionic liquids were exploited as an optical sensor matrix material for sensing of both gaseous and dissolved CO 2 .…”

Section: Introductionmentioning

confidence: 99%

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Ionic Liquid-Based Optical and Electrochemical Carbon Dioxide Sensors

Behera

Pandey

Kadyan

et al. 2015

Sensors

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Due to their unusual physicochemical properties (e.g., high thermal stability, low volatility, high intrinsic conductivity, wide electrochemical windows and good solvating ability), ionic liquids have shown immense application potential in many research areas. Applications of ionic liquid in developing various sensors, especially for the sensing of biomolecules, such as nucleic acids, proteins and enzymes, gas sensing and sensing of various important ions, among other chemosensing platforms, are currently being explored by researchers worldwide. The use of ionic liquids for the detection of carbon dioxide (CO2) gas is currently a major topic of research due to the associated importance of this gas with daily human life. This review focuses on the application of ionic liquids in optical and electrochemical CO2 sensors. The design, mechanism, sensitivity and detection limit of each type of sensor are highlighted in this review.

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Section: Ionic Liquids In Optical Co 2 Sensorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ionic Liquid-Based Optical and Electrochemical Carbon Dioxide Sensors

Behera

Pandey

Kadyan

et al. 2015

Sensors

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show abstract

“…While the excellent properties of ILs in electrochemical sensing are widely demonstrated in the literature, there are few examples of optical sensors exploiting the properties of IL systems. The most prevalent example consists of using ILs in gas-sensing schemes. − Thus, the properties of ILs in optical sensing schemes remain poorly understood.…”

mentioning

confidence: 99%

Imidazolium-Based Ionic Liquid Surfaces for Biosensing

et al. 2013

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Ionic liquid self-assembled monolayers (SAM) were designed and applied for binding streptavidin, promoting affinity biosensing and enzyme activity on gold surfaces of sensors. The synthesis of 1-((+)-biotin)pentanamido)propyl)-3-(12-mercaptododecyl)-imidazolium bromide, a biotinylated ionic liquid (IL-biotin), which self-assembles on gold film, afforded streptavidin sensing with surface plasmon resonance (SPR). The IL-biotin-SAM efficiently formed a full streptavidin monolayer. The synthesis of 1-(carboxymethyl)-3-(mercaptododecyl)-imidazoliumbromide, a carboxylated IL (IL-COOH), was used to immobilize anti-IgG to create an affinity biosensor. The IL-COOH demonstrated efficient detection of IgG in the nanomolar concentration range, similar to the alkylthiols SAM and PEG. In addition, the IL-COOH demonstrated low fouling in crude serum, to a level equivalent to PEG. The IL-COOH was further modified with N,N'-bis (carboxymethyl)-l-lysine hydrate to bind copper ions and then, chelate histidine-tagged biomolecules. Human dihydrofolate reductase (hDHFR) was chelated to the modified IL-COOH. By monitoring enzyme activity in situ on the SPR sensor, it was revealed that the IL-COOH SAM improved the activity of hDHFR by 24% in comparison to classical SAM. Thereby, IL-SAM has been synthesized and successfully applied to three important biosensing schemes, demonstrating the advantages of this new class of monolayers.

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Fluorescent Probe Studies of Polarity and Solvation within Room Temperature Ionic Liquids: A Review

et al. 2012

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Ionic liquids display an array of useful and sometimes unconventional, solvent features and have attracted considerable interest in the field of green chemistry for the potential they hold to significantly reduce environmental emissions. Some of these points have a bearing on the chemical reactivity of these systems and have also generated interest in the physical and theoretical aspects of solvation in ionic liquids. This review presents an introduction to the field of ionic liquids, followed by discussion of investigations into the solvation properties of neat ionic liquids or mixed systems including ionic liquids as a major or minor component. The ionic liquid based multicomponent systems discussed are composed of other solvents, other ionic liquids, carbon dioxide, surfactants or surfactant solutions. Although we clearly focus on fluorescence spectroscopy as a tool to illuminate ionic liquid systems, the issues discussed herein are of general relevance to discussions of polarity and solvent effects in ionic liquids. Transient solvation measurements carried out by means of time-resolved fluorescence measurements are particularly powerful for their ability to parameterize the kinetics of the solvation process in ionic liquids and are discussed as well.

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Dissolved Carbon Dioxide Sensing with Phenyl-Linked Carbazole Oxazolones in Ionic Liquid and Ethyl Cellulose Moieties

Cited by 10 publications

References 31 publications

Ionic Liquid-Based Optical and Electrochemical Carbon Dioxide Sensors

Ionic Liquid-Based Optical and Electrochemical Carbon Dioxide Sensors

Imidazolium-Based Ionic Liquid Surfaces for Biosensing

Fluorescent Probe Studies of Polarity and Solvation within Room Temperature Ionic Liquids: A Review

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