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Alghamdi N, Alqahtani Z, Zhou C, Sano N, Conte M, Grell M. Sensing aromatic pollutants in water with catalyst-sensitized water-gated transistor. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01212-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Alqahtani Z, Alghamdi N, Grell M. Monitoring the lead-and-copper rule with a water-gated field effect transistor. JOURNAL OF WATER AND HEALTH 2020; 18:159-171. [PMID: 32300089 DOI: 10.2166/wh.2020.186] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We use the natural zeolite clinoptilolite as the sensitive element in a plasticised PVC membrane. Separating a sample pool and a reference pool with such a membrane in water-gated SnO2 thin-film transistor (SnO2 WGTFT) leads to membrane potential, and thus transistor threshold shift in response to the common drinking water pollutants Pb2+ or Cu2+ in the sample pool. Threshold shift with ion concentration, c, follows a Langmuir-Freundlich (LF) characteristic. As the LF characteristic shows the steepest slope in the limit c → 0, this opens a window to limits-of-detection (LoDs) far below the 'action levels' of the 'lead-and-copper rule' for drinking water: Pb2+: LoD 0.9 nM vs 72 nM action level, Cu2+: LoD 14 nM vs 20.5 μM action level. LoDs are far lower than for membranes using organic macrocycles as their sensitive elements. Threshold shifts at the lead and copper action levels are more significant than shifts in response to variations in the concentration of non-toxic co-cations, and we discuss in detail how to moderate interference. The selective response to lead and copper qualifies clinoptilolite-sensitised WGTFTs as a low footprint sensor technology for monitoring the lead-and-copper rule, and to confirm the effectiveness of attempts to extract lead and copper from water.
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Affiliation(s)
- Zahrah Alqahtani
- Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Rd, Sheffield S3 7RH, UK E-mail: ; Department of Physics, University of Taif, Taif-Al-Haweiah 21974, Saudi Arabia
| | - Nawal Alghamdi
- Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Rd, Sheffield S3 7RH, UK E-mail: ; Department of Physics, University of Tabuk, King Fahad Road, Tabuk 47731, Saudi Arabia
| | - Martin Grell
- Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Rd, Sheffield S3 7RH, UK E-mail:
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Wang J, Guan H, Ge C, Fan P, Xing X, Shang Y. Azocalix[4]arene with three distal ethyl ester residues as a highly selective chromogenic sensor for Ca2+ ions. HETEROCYCL COMMUN 2018. [DOI: 10.1515/hc-2017-0239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractThree azocalix[4]arenes with distal ethyl ester residues, 5-phenylazo-25,26,27-tris[(ethoxycarbonyl)methoxy]-28-hydroxycalix[4]arene (2), 5-(o-methylphenyl)azo-25,26,27-tris[(ethoxycarbonyl)methoxy]-28-hydroxycalix[4]arene (3), 5-(p-Methylphenyl)azo-25,26,27-tris[(ethoxycarbonyl)methoxy]-28-hydroxycalix[4]arene (4), were synthesized and their binding properties with metal ions were investigated by ultraviolet (UV)/visible spectroscopy. The chromogenic behavior of these compounds upon metal ion complexation indicates a specific selectivity toward Ca2+ ion in the presence of other cations tested. The stoichiometry of 3 to Ca2+ ion in the complex is 1:1 and the stability constant of the complex is 1.28×104m−1.
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Affiliation(s)
- Jie Wang
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Hongyu Guan
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Chunhua Ge
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Ping Fan
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Xijuan Xing
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
| | - Yunshan Shang
- College of Chemistry, Liaoning University, Shenyang 110036, People’s Republic of China
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Althagafi TM, Al Baroot AF, Algarni SA, Grell M. A membrane-free cation selective water-gated transistor. Analyst 2016; 141:5571-6. [PMID: 27433556 DOI: 10.1039/c6an00967k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Sensors for the detection of waterborne cations are of great practical interest, and chemistry has synthesised a formidable catalogue of cation selective complexation agents ('ionophores') as selective sensitisers. Current ionophore-based sensors separate the complexation of the cation by the ionophore, and the transduction of complexation into an electrical signal, into separate components. We here unite both functions into a single, sensitised semiconducting layer of a water-gated organic thin film transistor (OTFT). The resulting OTFT transduces waterborne cations into an electrical signal with same selectivity, sensitivity, and limit of detection as established sensors at much simplified preparation and operation. This opens a new route to apply the 'ionophore' family of functional organic materials in practical cation sensors.
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Affiliation(s)
- Talal M Althagafi
- Department of Physics and Astronomy, University of Sheffield, Hicks Building, Hounsfield Rd, Sheffield S3 7RH, UK.
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Althagafi TM, Algarni SA, Grell M. Innate cation sensitivity in a semiconducting polymer. Talanta 2016; 158:70-76. [DOI: 10.1016/j.talanta.2016.05.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 05/10/2016] [Accepted: 05/14/2016] [Indexed: 10/21/2022]
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Sainz-Gonzalo FJ, Popovici C, Casimiro M, Raya-Barón A, López-Ortiz F, Fernández I, Fernández-Sánchez JF, Fernández-Gutiérrez A. A novel tridentate bis(phosphinic acid)phosphine oxide based europium(III)-selective Nafion membrane luminescent sensor. Analyst 2014; 138:6134-43. [PMID: 23967443 DOI: 10.1039/c3an00064h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new europium(III) membrane luminescent sensor based on a new tridentate bis(phosphinic acid)phosphine oxide (3) system has been developed. The synthesis of this new ligand is described and its full characterization by NMR, IR and elemental analyses is provided. The luminescent complex formed between europium(III) chloride and ligand 3 was evaluated in solution, observing that its spectroscopic and chemical characteristics are excellent for measuring in polymer inclusion membranes. Included in a Nafion membrane, all the parameters (ligand and ionic additives) that can affect the sensitivity and selectivity of the sensing membrane as well as the instrumental conditions were carefully optimized. The best luminescence signal (λexc = 229.06 nm and λem = 616.02 nm) was exhibited by the sensing film having a Nafion : ligand composition of 262.3 : 0.6 mg mL(-1). The membrane sensor showed a short response time (t95 = 5.0 ± 0.2 min) and an optimum working pH of 5.0 (25 mM acetate buffer solution). The membrane sensor manifested a good selectivity toward europium(III) ions with respect to other trivalent metals (iron, chromium and aluminium) and lanthanide(III) ions (lanthanum, samarium, terbium and ytterbium), although a small positive interference of terbium(III) ions was observed. It provided a linear range from 1.9 × 10(-8) to 5.0 × 10(-6) M with a very low detection limit (5.8 × 10(-9) M) and sensitivity (8.57 × 10(-7) a.u. per M). The applicability of this sensing film has been demonstrated by analyzing different kinds of spiked water samples obtaining recovery percentages of 95-97%.
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Affiliation(s)
- F J Sainz-Gonzalo
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Av. Fuentenueva s/n, 18071 Granada, Spain.
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Gupta VK, Singh AK, Kumawat LK. A novel gadolinium ion-selective membrane electrode based on 2-(4-phenyl-1, 3-thiazol-2-yliminomethyl) phenol. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.02.053] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sutariya PG, Modi NR, Pandya A, Rana VA, Menon SK. Synthesis, mesomorphism and dielectric behaviour of novel basket shaped scaffolds constructed on lower rim azocalix[4]arenes. RSC Adv 2013. [DOI: 10.1039/c3ra22422h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Sutariya PG, Modi NR, Pandya A, Joshi BK, Joshi KV, Menon SK. An ICT based "turn on/off" quinoline armed calix[4]arene fluoroionophore: its sensing efficiency towards fluoride from waste water and Zn2+ from blood serum. Analyst 2012; 137:5491-4. [PMID: 23047153 DOI: 10.1039/c2an36247c] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A novel structurally simple calix[4]arene appended 8-amidoquinoline linked conjugate was synthesized and has been used as a turn-on fluorescence probe for Zn(2+) and turn off fluorescence probe for F(-). Moreover, this probe has been applied for Zn(2+) detection in blood serum upto 8.7 μM and fluoride detection upto 22 nM in waste water samples, using emission spectra.
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Affiliation(s)
- Pinkesh G Sutariya
- Department of Chemistry, School of Sciences, Gujarat University, Navrangpura, Ahmedabad 380009, Gujarat, India
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Thiampanya P, Muangsin N, Pulpoka B. Azocalix[4]arene Strapped Calix[4]pyrrole: A Confirmable Fluoride Sensor. Org Lett 2012; 14:4050-3. [DOI: 10.1021/ol301684r] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Preecha Thiampanya
- Supramolecular Chemistry Research Unit and Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand
| | - Nongnuj Muangsin
- Supramolecular Chemistry Research Unit and Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand
| | - Buncha Pulpoka
- Supramolecular Chemistry Research Unit and Organic Synthesis Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Bangkok 10330, Thailand
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Synthesis of new chromogenic calix[4]arene based molecular receptors for palladium and platinum. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0105-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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Sainz-Gonzalo FJ, Casimiro M, Popovici C, Rodríguez-Diéguez A, Fernández-Sánchez JF, Fernández I, López-Ortiz F, Fernández-Gutiérrez A. Development of polymeric sensing films based on a tridentate bis(phosphinic amide)-phosphine oxide for detecting europium(iii) in water. Dalton Trans 2012; 41:6735-48. [DOI: 10.1039/c2dt30257h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Steller L, Kreir M, Salzer R. Natural and artificial ion channels for biosensing platforms. Anal Bioanal Chem 2011; 402:209-30. [PMID: 22080413 DOI: 10.1007/s00216-011-5517-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 10/14/2011] [Accepted: 10/18/2011] [Indexed: 10/15/2022]
Abstract
The single-molecule selectivity and specificity of the binding process together with the expected intrinsic gain factor obtained when utilizing flow through a channel have attracted the attention of analytical chemists for two decades. Sensitive and selective ion channel biosensors for high-throughput screening are having an increasing impact on modern medical care, drug screening, environmental monitoring, food safety, and biowarefare control. Even virus antigens can be detected by ion channel biosensors. The study of ion channels and other transmembrane proteins is expected to lead to the development of new medications and therapies for a wide range of illnesses. From the first attempts to use membrane proteins as the receptive part of a sensor, ion channels have been engineered as chemical sensors. Several other types of peptidic or nonpeptidic channels have been investigated. Various gating mechanisms have been implemented in their pores. Three technical problems had to be solved to achieve practical biosensors based on ion channels: the fabrication of stable lipid bilayer membranes, the incorporation of a receptor into such a structure, and the marriage of the modified membrane to a transducer. The current status of these three areas of research, together with typical applications of ion-channel biosensors, are discussed in this review.
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Affiliation(s)
- L Steller
- Department of Magnetic and Acoustic Resonances, Leibniz Institute for Solid State and Materials Research, Dresden, Germany.
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Modi NR, Patel B, Patel MB, Menon SK. Novel monohydrogenphosphate ion-selective polymeric membrane sensor based on phenyl urea substituted calix[4]arene. Talanta 2011; 86:121-7. [DOI: 10.1016/j.talanta.2011.08.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2011] [Revised: 08/23/2011] [Accepted: 08/24/2011] [Indexed: 11/27/2022]
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Spiridonov IG, Kirsanov DO, Babain VA, Alyapyshev MY, Eliseev NI, Vlasov YG, Legin AV. Polymeric sensors for determination of rare-earth metal ions, based on diamides of dipicolinic acid. RUSS J APPL CHEM+ 2011. [DOI: 10.1134/s1070427211080106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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