Customized vic-dioximes and their metal complexes for enhanced chemical sensing of polar organic molecules

Harbeck, Mika; Şen, Zafer; Gümüş, Gülay; Gürol, İlke; Musluoğlu, Emel; Öztürk, Zafer Ziya; Ahsen, Vefa

doi:10.1016/j.snb.2013.08.014

Cited by 11 publications

(10 citation statements)

References 22 publications

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“…It can be clearly seen that the highest sensor responses were observed for DMMP. DMMP is known to be a semi-volatile and sticky compound [ 20 , 36 ] due to the phosphorus atom (P) in the center of the molecular structure. Molecular bonds of DMMP have lower activation energies than those of the other tested analytes, so chemical bonds can be dissociated easily [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

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Poly(3-Methylthiophene) Thin Films Deposited Electrochemically on QCMs for the Sensing of Volatile Organic Compounds

Öztürk

Kösemen

Şen

et al. 2016

Sensors

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Poly(3-methylthiophene) (PMeT) thin films were electrochemically deposited on quartz crystal microbalance QCM transducers to investigate their volatile organic compound (VOC) sensing properties depending on ambient conditions. Twelve different VOCs including alcohols, ketones, chlorinated compounds, amines, and the organosphosphate dimethyl methylphosphonate (DMMP) were used as analytes. The responses of the chemical sensors against DMMP were the highest among the tested analytes; thus, fabricated chemical sensors based on PMeT can be evaluated as potential candidates for selectively detecting DMMP. Generally, detection limits in the low ppm range could be achieved. The gas sensing measurements were recorded at various humid air conditions to investigate the effects of the humidity on the gas sensing properties. The sensing performance of the chemical sensors was slightly reduced in the presence of humidity in ambient conditions. While a decrease in sensitivity was observed for humidity levels up to 50% r.h., the sensitivity was nearly unaffected for higher humidity levels and a reliable detection of the VOCs and DMMP was possible with detection limits in the low ppm range.

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Section: Resultsmentioning

confidence: 99%

“…Furthermore, gas sensing measurements were recorded in various humid air conditions from 25% to 75% r.h. to examine the effects of the humidity on the sensing performance. The details of the experimental gas sensing set-up have been given in previous works [ 20 , 21 ].…”

Section: Methodsmentioning

confidence: 99%

Poly(3-Methylthiophene) Thin Films Deposited Electrochemically on QCMs for the Sensing of Volatile Organic Compounds

Öztürk

Kösemen

Şen

et al. 2016

Sensors

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“…Spray coating is very popular for polymeric coating of TSMRs [185,186]. Sometimes a manual version, airbrush coating, is preferred [243,287]. The morphology of a layer family (GO, PANI, and GO/SnO 2 /PANI) deposited by airbrush spray coating on an Ag Q-TSMR electrode by Zhang et al is shown in Fig.…”

Section: Deposition Methods For Sensing Layers On Mstsmentioning

confidence: 99%

“…The LDA canonical score plot proved the complete separation of the clusters for acetone, methanol, ethanol and tetrahydrofuran. Many other authors report the successful use of more or less conventional GGS arrays to solve analytical problems in gas detection: ionic liquids Q-TSMRs for VOCs [241][242][243][244] or for explosive vapors/gases [245], SiO 2 -NP functionalized with organic materials Q-TSMRs for breath analysis [246], AuNP-peptide Q-TSMRs for food aroma detection [51], poly(acrylic acid) MIP on Q-TSMRs for aldehyde [247] and organic acids [248] in body odor, peptide-modified ZnO-NP on Q-TSMRs for organic VOCs [249], biomimetic MIPs on Q-TSMRs for terpenes from herbs [250], GO and N-substituted pyrrole derivative-based films on Q-TSMRs for toxic gases (CO, NH 3 and NO 2 ) [251], metallo-porphyrins and AuNPpeptide on Q-TSMRs for chocolate quality control, [103], SWCNT/organic materials on Q-TSMRs for ambient air composition (as example) [252], porphyrin Q-TSMRs for vapor released by microorganisms [104], polymer films on Si cantilevers for VOCs, [253,254] and MIP on SAW for CWA detection [255]. In order to increase the accuracy of gas sensing, arrays of GGSs together with other types of gas sensors have been devised and tested.…”

Section: Gravimetric Sensor Systemsmentioning

confidence: 99%

Gas sensors based on mass-sensitive transducers. Part 2: Improving the sensors towards practical application

Oprea

2020

Anal Bioanal Chem

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“…They are calculated from partition coefficients by multiplication with the saturation vapor pressure. 8 In Figure 4 The affinities of P c 1a are uniformly low to most compounds, but it has a notably high preference for Et3N and DMMP. The affinities of the vic-dioximes indicate a high sorption preference for polar analytes such as EtOAc and nPrOH as well as CS2.…”

Section: Analysis Of the Sensor Responsesmentioning

confidence: 99%

Gas sensing with hexafluoroisopropanol substituted phthalocyanines andvic-dioximes: a comparative study

Harbeck¹,

Şen²,

Erbahar³

et al. 2019

Turk J Chem

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Phthalocyanines (Pcs) are established sensitive materials for chemical gas sensors due to their superb sensing characteristics and the achievable manifold in their analyte interaction properties. Their sorption properties are determined by the metal ion center and substituents attached to the periphery of the ring system. Similarly, vic-dioximes can be modified in their sorption properties and employed as sensitive materials. In this work, a nickel Pc and various vic-dioximes functionalized with the same hexafluoroisopropanol moiety are assessed and compared in their gas-sensing properties using the quartz crystal microbalance for the first time. This specific substituent is selected for its hydrogen bond acidity for strong interactions with analytes having corresponding sites. The synthesis and characterization of the new compounds are described. Sensor results are presented for ten selected organic compounds and the chemical warfare agent simulant dimethyl methylphosphonate (DMMP). Both compound classes exhibit good sensing performance but were found to exhibit very diverging analyte preferences, as preferential sorption of either amines or polar compounds was observed depending on the molecule type. Thus, by applying the same substituent to different base molecules, sensitive compounds with very distinct sensing properties can be realized.

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Customized vic-dioximes and their metal complexes for enhanced chemical sensing of polar organic molecules

Cited by 11 publications

References 22 publications

Poly(3-Methylthiophene) Thin Films Deposited Electrochemically on QCMs for the Sensing of Volatile Organic Compounds

Poly(3-Methylthiophene) Thin Films Deposited Electrochemically on QCMs for the Sensing of Volatile Organic Compounds

Gas sensors based on mass-sensitive transducers. Part 2: Improving the sensors towards practical application

Gas sensing with hexafluoroisopropanol substituted phthalocyanines andvic-dioximes: a comparative study

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