5, 10, 15, 20-tetrakis-(4-methoxyphenyl) porphyrin film/K+ ion-exchanged optical waveguide gas sensor

Mamtmin, Gulgina; Kari, Nuerguli; Abdurahman, Renagul; Nizamidin, Patima; Yimit, Abliz

doi:10.1016/j.optlastec.2020.106260

Cited by 14 publications

(4 citation statements)

References 67 publications

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“…Porphyrins have a wide range of interaction mechanisms for analyte binding, such as π bonds, weak Van der Waals forces for hydrogen bonding, and coordination with a central metal ion; these make porphyrins sensitive and selective for sensor applications. 21 Various porphyrins (free base and metal-centered) have been explored for gas-sensing applications in optical, 22,23 mass detection, 24 chemiresistive, 25 and chemical-sensitive fieldeffect transistor (chemFET) 26 sensing modalities. However, the lower electrical charge conduction of porphyrins restricts the use of conductance-based sensing modalities.…”

Section: Introductionmentioning

confidence: 99%

Multivariate Analysis of a Cobalt Octaethyl Porphyrin-Functionalized SWNT Microsensor Device for Selective and Simultaneous Detection of Multiple Analytes

Shirsat¹,

Bodkhe

Sonawane

et al. 2021

J. Electron. Mater.

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Multivariate analysis is carried out for single-walled carbon nanotubes (SWNTs) functionalized with a cobalt octaethyl porphyrin (CoOEP) chemiresistive sensor device for selective and simultaneous detection of multiple analytes. The chemiresistor was prepared on Si/SiO 2 substrate with photolithographically patterned gold microelectrodes having a 3-µm gap. SWNTs were aligned dielectrophoretically and functionalized with CoOEP by drop-casting. The aligned and CoOEP-functionalized SWNTs were characterized with electrical (I-V method), structural, spectroscopic, and morphological techniques, and sensor performance was investigated in a chemiresistive sensing modality. The fabricated sensor shows response towards acetone, dichloromethane, methyl ethyl ketone, ethanol, and methanol, with a lower detection limit of 5 ppm, which is far below the OSHA permissible exposure limit for each analyte, and demonstrates fast response and recovery. The multivariate analysis viz. principal component analysis and linear discrimination analysis reveals high discriminating capability of SWNTs functionalized with the CoOEP chemiresistive sensor towards these analytes, which could be used as an intelligent electronic nose (E-nose). This type of intelligent E-nose can address the crucial need for monitoring environmental pollution in industries, homes, buildings, etc. Keywords Single-walled carbon nanotubes (SWNTs) • cobalt octaethyl porphyrin (CoOEP) • functionalization • principal component analysis (PCA) • linear discrimination analysis (LDA) • electronic nose (E-nose)

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Section: Introductionmentioning

confidence: 99%

Multivariate Analysis of a Cobalt Octaethyl Porphyrin-Functionalized SWNT Microsensor Device for Selective and Simultaneous Detection of Multiple Analytes

Shirsat¹,

Bodkhe

Sonawane

et al. 2021

J. Electron. Mater.

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“…Researchers have studied different oxadiazole derivatives as corrosion inhibitors [21]. Some methoxyphenyl compounds are photo sensitizers that are frequently employed in biochemistry, medical therapies, cell and sensor research [22][23][24]. Oxadiazole was widely employed as a preferred scaffold in drug development [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Cluster formation between an oxadiazole derivative with metal nanoclusters (Ag/Au/Cu), graphene quantum dot sheets, SERS studies, and solvent effects

Al‐Otaibi

Mary²,

Mary³

et al. 2022

Struct Chem

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Interaction of an oxadiazole derivative with Ag/Au/Cu and graphene quantum dots with different solvents is reported theoretically. The adsorption energy is maximum for Cu6 cluster and minimum for Ag6 cluster. The asymmetric charge redistribution between DPMO and M 6 s produces an improvement in dipole moment values. The decrease in energy gaps of complexes increased conductivity and metal clusters can be used as a drug sensor. The solvation energies are higher negative in solvent media than in the gaseous media, indicating an enhancement in solvent medium's stability.Wavefunction studies show that there exist signi cant noncovalent interactions between metal clusters and oxadiazole that facilitates cluster formation. DPMO is found to form stable clusters with graphene which is evident from the enhancement of Raman activity of the system through SERS also enabling it for sensing DPMO in a mixture.

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“…Planar optical waveguide sensor (OWGS) is a facile method to detect molecules due to the interaction between sensing materials and evanescent fields formed with laser lights [ 13 , 14 ]. Different research studies focus on the fabrication of different types of sensors applying pH indicators [ 15 ], polyacrylate resin thin film [ 16 ], cyclodextrin polymer films [ 17 ], metal oxides, and [ 18 ] porphyrin dyes [ 19 ]. The film–analyte interaction mechanism and output light intensity has been restricted to the macroscopic view.…”

Section: Introductionmentioning

confidence: 99%

Metallic Effects on p-Hydroxyphenyl Porphyrin Thin-Film-Based Planar Optical Waveguide Gas Sensor: Experimental and Computational Studies

et al. 2022

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Metal effects on the gas sensing behavior of metal complexes of 5, 10, 15, 20-tetrakis(4-hydroxyphenyl) porphyrin (THPP) thin film was investigated in terms of detecting NO2 gas by the planar optical waveguide. For this purpose, several THPP and metal complexes were synthesized with different central metal ions: Co(II), Ni(II), Cu(II), and Zn(II). Planar optical gas sensors were fabricated with the metalloporphyrins deposited on K+ ion-exchanged soda-lime glass substrate with the spin coating method serving as host matrices for gas interaction. All of the THPP complex’s films were fully characterized by UV-Vis, IR and XPS spectroscopy, and the laser light source wavelength was selected at 520 and 670 nm. The results of the planar optical waveguide sensor show that the Zn–THPP complex exhibits the strongest response with the lowest detectable gas concentration of NO2 gas for both 520 nm and 670 nm. The Ni–THPP and Co–THPP complexes display good efficiency in the detection of NO2, while, on the other hand, Cu–THPP shows a very low interaction with NO2 gas, with only 50 ppm and 200 ppm detectable gas concentration for 520 nm and 670 nm, respectively. In addition, molecular dynamic simulations and quantum mechanical calculations were performed, proving to be coherent with the experimental results.

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5, 10, 15, 20-tetrakis-(4-methoxyphenyl) porphyrin film/K+ ion-exchanged optical waveguide gas sensor

Cited by 14 publications

References 67 publications

Multivariate Analysis of a Cobalt Octaethyl Porphyrin-Functionalized SWNT Microsensor Device for Selective and Simultaneous Detection of Multiple Analytes

Multivariate Analysis of a Cobalt Octaethyl Porphyrin-Functionalized SWNT Microsensor Device for Selective and Simultaneous Detection of Multiple Analytes

Cluster formation between an oxadiazole derivative with metal nanoclusters (Ag/Au/Cu), graphene quantum dot sheets, SERS studies, and solvent effects

Metallic Effects on p-Hydroxyphenyl Porphyrin Thin-Film-Based Planar Optical Waveguide Gas Sensor: Experimental and Computational Studies

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