Acyclic Arylamine-Based Ionophores as Potentiometric Sensors for Zn2+ and Ni2+ Ions

Kaur, Harpreet; Chhibber, Manmohan; Mittal, Susheel K.

doi:10.3390/c3040034

Cited by 8 publications

(12 citation statements)

References 51 publications

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“…It has been recently reported that aromatic phenyl ether-based receptors can sense different ions due to their ability to form cavities, the rigidity of the planer phenyl rings and the flexibility of rotation around ether linkage. [38] However, hydrophobic natures of such organic compounds limit their application in the aqueous medium for sensing. It was therefore envisaged to impart hydrophilicity by tagging polar groups with these molecules while maintaining their cavity.…”

Section: Design Of the Receptormentioning

confidence: 99%

“…The use of phenyl ethers for the detection of various cations and anions has recently been demonstrated [36,37] . Phenyl ethers present a fascinating architecture that provides a flexible cavity due to ether linkage and adequate rigidity due to aromatic rings [38] . Herein, we report a molecular probe with diphenyl ether cores appended to the carbothiohydrazide functionality as the metal ion recognition motif (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

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Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

Kumar

Chhibber

2020

ChemistrySelect

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The identification and quantification of toxic Hg 2 + ions in biological fluids is significant due to its harmful effects. The ion is an exceptional contaminant due to its manifestation in the environment through anthropogenic emissions besides other industrial processes. The bioaccumulation of Hg 2 + ions through water bodies, soil and food causes damage to the central nervous system and endocrine glands. This work describes the synthesis of Compd-2 (Compound 2), a thiocarbohydrazidebased UV-active sensor, that can detect Hg 2 + and Cu 2 + ions in the aqueous medium (HEPES buffer (3 mM) /acetonitrile = 99 : 1, v/v). Compd-2 responds linearly to the varying concentrations of Hg 2 + with a minimum detection limit of 27 nM and a 1 : 1 stoichiometry. 1 H NMR titration with increasing Hg 2 + ion concentrations confirmed its interaction by shifting of the peak. In-silico modelling using Gaussian 16.0 and IR spectroscopy verified a single binding site for the Hg 2 + ions. Aqueous solubility of Compd-2 was used as an advantage to develop a methodology for the detection and quantification of Hg 2 + ions in the human urine sample. The work also demonstrates the nM quantification of Hg 2 + ions in the urine sample by the standard addition method.

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Section: Design Of the Receptormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

Kumar

Chhibber

2020

ChemistrySelect

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“…Selain itu, tenaga pengikatan bagi ion kompleks [Al(ACH)] 3+ ialah -5.560 × 10 6 kJ/mol. Nilai negatif yang rendah pula memaparkan bahawa ion kompleks [Al(ACH)] 3+ yang terbentuk adalah kuat dan stabil (Kaur et al 2017). Oleh itu, bagi geometri ion kompleks [Al(ACH) 3 ] 3+ yang mempunyai stokoimetri 3 ligan ACH kepada 1 Al 3+ ion, dengan merujuk kepada struktur [Al(ACH)] 3+ , adalah dicadangkan seperti pada Rajah 6.…”

Section: Kesan Komposisi Pelarut H 2 O-etoh Terhadap Pengkompleksan Aunclassified

Kajian Pengkompleksan Sebatian Bis-Tiourea dengan Ion Aluminium sebagai Ionofor dalam Pembangunan Sensor Ion Potensiometri

Kook¹,

Ngah²,

Sapari³

et al. 2019

JSM

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Sebatian terbitan tiourea telah banyak digunakan sebagai ionofor untuk merkuri, kadmium, kuprum, plumbum dan ferum (III) dalam bidang sensor kimia. Namun, penggunaan sebatian tiourea sebagai ionofor aluminium masih tidak banyak dilaporkan. Dalam kajian ini, satu sebatian bis-tiourea baharu 1,1'-[(metilazandiyil)bis(etana-2,1-diyil)]bis[3-(naftalen-1-yil)tiourea] ACH telah disintesis dan dicirikan dengan menggunakan spektroskopi 1H, 13C-resonans magnetik nukleus, spektroskopi inframerah dan spektrometri jisim. Untuk menilai dan menentusah kesesuaian sebatian ACH sebagai ionofor aluminium, kajian pengkompleksan antara ligan ACH dengan ion aluminium dalam komposisi pelarut H 2 O-EtOH yang berbeza melalui kaedah spektrofluorimetri telah dijalankan. Antara lima jenis komposisi pelarut, hanya pelarut 25%H 2 O-75%EtOH menunjukkan pembentukan kompleks. Nisbah stoikiometri bagi ion kompleks yang terbentuk antara ligan ACH dengan ion Al 3+ ialah 3:1 dengan formula [Al(ACH) 3 ] 3+ dan nilai pK a yang diperoleh ialah 5.10±0.01. Struktur ion kompleks [ACH-Al] 3+ dengan stokoimetri 1:1 juga telah dioptimumkan melalui pengiraan teori fungsi ketumpatan. Kedua-dua atom sulfur daripada kumpulan berfungsi bis-tiourea didapati merupakan tapak aktif yang terlibat dalam proses pengkompleksan dan geometri separa rongga ditunjukkan pada ligan ACH untuk berkoordinat dengan ion Al 3+. Nilai negatif yang rendah pada tenaga pengikatan [ACH-Al] 3+ , iaitu-5.560 × 10 6 kJ/mol juga memaparkan kestabilan ion kompleks yang kuat. Sebagai kesimpulan, sebatian ACH adalah sesuai digunakan sebagai ionofor aluminium yang baharu dalam sensor ion potensiometri. Kata kunci: 1,1'-[(metilazandiyil)-bis(etana-2,1-diyil)]bis[3-(naftalen-1-yil)tiourea]; kajian pengkompleksan; pencirian sebatian bis-tiourea; pengiraan teori fungsi ketumpatan

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“…The permissible limit of PVC on the membrane electrode has the composition of PVC: o-NPOE: DPA: NaTPB as 33:61:3:3 (w/w) as the optimum composition with the closest Nernstian response (Kaur, Chhibber and Mittal, 2017). The composition according to (Badakhshan, 2019) is 30:65.5:0.5 mg of PVC: o-NPOE: KTpClPB, as a composition of PVC, plasticizer and lipophilic additive.…”

Section: Introductionmentioning

confidence: 99%

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS, FTIR and XRD analysis

2022

jppipa, pendidikan ipa, fisika, biologi, kimia

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This study aims to characterize the tungsten-urea analyte indicator electrode. The method used is biosensor potentiometry with urease enzyme immobilization technique. This indicator electrode was coated with PVA-enzyme coated with glutaraldehyde (GA) 2.9% coated with PVC-KTpClPB- o-NPOE with o-NPOE variation of 61% and 66%. Characterization of coated indicator electrodes using SEM-EDS, FTIR and XRD analysis. A1-4 61% indicator electrode sample coated PVA-enzyme 1x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. A3-4 61% indicator electrode sample coated PVA-enzyme 3x coated with glutaraldehyde (GA) 2.9% 1x coated PVC-KTpClPB- o-NPOE 1x, with o-NPOE 61%. Likewise, the reasoning of samples A1-4 66% and A3-4 66%. There are four indicator electrodes made with the notation A1-4 61%, A1-4 66%, A3-4 61% and A3-4 66%. The best results were obtained at the indicator electrode sample A1-4 61%, contributing to the urea sensor of the potentiometer cell

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Acyclic Arylamine-Based Ionophores as Potentiometric Sensors for Zn2+ and Ni2+ Ions

Cited by 8 publications

References 51 publications

Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

Determination of Mercury Ions in Aqueous Medium and Urine Sample Using Thiocarbohydrazide Based Sensor

Kajian Pengkompleksan Sebatian Bis-Tiourea dengan Ion Aluminium sebagai Ionofor dalam Pembangunan Sensor Ion Potensiometri

Characterization of PVA-Enzyme Coated Indicator Electrodes GA coated again with PVC-KTpClPB-o-NPOE SEM-EDS, FTIR and XRD analysis

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