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Quiñone D, Romano GM, Faccio R, Savastano M, Bianchi A, Bencini A, Brovetto M, Torres J, Veiga N. Novel Discrete and Imprinted Fluoride-Selective Sensors: Bridging the Gap from DMSO to Aqueous Samples. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402696. [PMID: 39152533 DOI: 10.1002/smll.202402696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 07/29/2024] [Indexed: 08/19/2024]
Abstract
Fluoride in drinking water has beneficial or harmful health effects depending on its concentration. This highlights the need for new low-cost and portable sensors capable of in situ monitoring of F- ions. Unfortunately, achieving high levels of water compatibility and fluoride specificity remains a challenge. Here, four new urea-based discrete sensors are prepared and characterized. The sensors containing anthracenyl- (5) and 9H-fluorenyl- (7) signaling units exhibit intense luminescent emissions in dimethyl sulfoxide, the former being particularly sensitive and selective to fluoride. In water, 5 displays a superior sensitivity (871 M-1) and a detection limit (8 µm) below international guidelines, albeit with cross-sensitivity to H2PO4‾. To enhance the performance, 5 and 7 are embedded into a fluoride-imprinted polymeric matrix to give solid-state sensors (5P and 7P, respectively). 5P shows good sensitivity (360 M-1) and specificity in water. Besides, it has a low detection limit (35 µm) and a response linear range (118-6300 µm) encompassing the limit established by the Environmental Protection Agency (211 µm). Furthermore, 5P also displays good reusability and adequate recovery values in real-sample testing (102 ± 2%), constituting the first example of a low-cost anion-imprinted polymeric probe tailored for the selective sensing of fluoride in aqueous samples.
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Affiliation(s)
- Delfina Quiñone
- Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República (UdelaR), Av. Gral. Flores 2124, Montevideo, 11800, Uruguay
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Montevideo, 11800, Uruguay
| | - Giammarco M Romano
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019, Florence, Italy
| | - Ricardo Faccio
- Área Física, DETEMA, Facultad de Química, Universidad de la República (UdelaR), Av. Gral. Flores 2124, Montevideo, 11800, Uruguay
| | - Matteo Savastano
- Department of Human Sciences for the Promotion of Quality of Life, University San Raffaele Roma, via di Val Cannuta 247, Rome, 00166, Italy
| | - Antonio Bianchi
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019, Florence, Italy
| | - Andrea Bencini
- Department of Chemistry 'Ugo Schiff', University of Florence, Via della Lastruccia 3, Sesto Fiorentino, 50019, Florence, Italy
| | - Margarita Brovetto
- Laboratorio de Síntesis Orgánica, Departamento de Química Orgánica, Facultad de Química, Universidad de la República (UdelaR), Av. Gral. Flores 2124, Montevideo, 11800, Uruguay
| | - Julia Torres
- Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República (UdelaR), Av. Gral. Flores 2124, Montevideo, 11800, Uruguay
| | - Nicolás Veiga
- Química Inorgánica, Departamento Estrella Campos, Facultad de Química, Universidad de la República (UdelaR), Av. Gral. Flores 2124, Montevideo, 11800, Uruguay
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2
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Kuerbanjiang K, Rouzi K, Zhang SY. Nitrophenyl Thiourea-Modified Polyethylenimine Colorimetric Sensor for Sulfate, Fluorine, and Acetate. SENSORS (BASEL, SWITZERLAND) 2024; 24:3751. [PMID: 38931538 PMCID: PMC11207599 DOI: 10.3390/s24123751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/28/2024]
Abstract
A thiourea-based colorimetric sensor incorporating polyethyleneimine (PEI) and chromophoric nitrophenyl groups was synthesized and utilized for detecting various anions. Structural characterization of the sensor was accomplished using FTIR and 1H-NMR spectroscopy. The sensor's interactions and colorimetric recognition capabilities with different anions, including CI-, Br-, I-, F-, NO3-, PF6-, AcO-, H2PO4-, PO43-, and SO42-, were investigated via visual observation and UV/vis spectroscopy. Upon adding SO42-, F-, and AcO- anions, the sensor exhibited distinct color changes from colorless to yellow and yellowish, while other anions did not induce significant color alterations. UV/vis spectroscopic titration experiments conducted in a DMSO/H2O solution (9:1 volume ratio) demonstrated the sensor's selectivity toward SO42-, F-, and AcO-. The data revealed that the formation of the main compounds and anion complexes was mediated by hydrogen bonding, leading to signal changes in the nitrophenyl thiourea-modified PEI spectrum.
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Affiliation(s)
- Kediye Kuerbanjiang
- College of Chemistry, Xinjiang University, Urumqi 830017, China;
- Chemical Engineering Department, McGill University, Montreal, QC H3A 0C5, Canada
| | - Kuerbanjiang Rouzi
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China;
- Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uyghur Autonomous Region, Urumqi 830017, China
| | - Si-Yu Zhang
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China;
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3
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Ahmad Wagay S, Riaz U, Alam M, Ali R. Evaluation of naked-eye sensing and anion binding studies in meso-fluorescein substituted one-walled calix[4]pyrrole (C4P). RSC Adv 2024; 14:7786-7796. [PMID: 38444971 PMCID: PMC10912976 DOI: 10.1039/d3ra08362d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024] Open
Abstract
In this paper, we have design, synthesized and fully characterized a new meso-fluorescein substituted one-walled calix[4]pyrrole (C4P7), obtained from simple and easily available starting materials such as fluorescein, 4-hydroxyacetophenone and pyrrole. The anion sensing studies reveal that the C4P7 system displays selective and sensitive naked-eye sensing towards fluoride, phosphate, and acetate anions with the limit of detection of 4.27 mg L-1, 6.4 mg L-1, and 5.94 mg L-1, respectively. Moreover, the C4P7 receptor displays good results of binding (host-guest, 1 : 1) towards a variety of anions. The 1 : 1 binding stoichiometry was further confirmed by means of Job's plots. TD-DFT calculations showed that the HOMO-LUMO gap decreases in all the complexes (C4P7@anions) in comparison to the free C4P7 system. The authors are of the opinion that this work may provide a good platform to explore calix[4]pyrrole chemistry in the arena of recognition/sensing of biologically significant analytes in future studies.
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Affiliation(s)
- Shafieq Ahmad Wagay
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
| | - Ufana Riaz
- Department of Chemistry and Biochemistry, North Carolina Central University 27707 USA
| | - Manawwer Alam
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Rashid Ali
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
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4
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Esteves CIC, Raposo MMM, Costa SPG. New Amino Acid-Based Thiosemicarbazones and Hydrazones: Synthesis and Evaluation as Fluorimetric Chemosensors in Aqueous Mixtures. Molecules 2023; 28:7256. [PMID: 37959675 PMCID: PMC10650509 DOI: 10.3390/molecules28217256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 09/25/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Bearing in mind the interest in the development and application of amino acids/peptides as bioinspired systems for sensing, a series of new phenylalanine derivatives bearing thiosemicarbazone and hydrazone units at the side chain were synthesised and evaluated as fluorimetric chemosensors for ions. Thiosemicarbazone and hydrazone moieties were chosen because they are considered both proton-donor and proton-acceptor, which is an interesting feature in the design of chemosensors. The obtained compounds were tested for the recognition of organic and inorganic anions (such as AcO-, F-, Cl-, Br-, I-, ClO4-, CN-, NO3-, BzO-, OH-, H2PO4- and HSO4-) and of alkaline, alkaline-earth, and transition metal cations, (such as Na+, K+, Cs+, Ag+, Cu+, Cu2+, Ca2+, Cd2+, Co2+, Pb2+, Pd2+, Ni2+, Hg2+, Zn2+, Fe2+, Fe3+ and Cr3+) in acetonitrile and its aqueous mixtures in varying ratios via spectrofluorimetric titrations. The results indicate that there is a strong interaction via the donor N, O and S atoms at the side chain of the various phenylalanines, with higher sensitivity for Cu2+, Fe3+ and F- in a 1:2 ligand-ion stoichiometry. The photophysical and metal ion-sensing properties of these phenylalanines suggest that they might be suitable for incorporation into peptide chemosensory frameworks.
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Affiliation(s)
| | | | - Susana P. G. Costa
- Centre of Chemistry, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (C.I.C.E.); (M.M.M.R.)
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5
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Amuthakala S, Bharathi S, Kalilur Rahiman A. Semicarbazone and thiosemicarbazone appended 4-diethylamino-2-hydroxybenzyl compounds as highly selective bifunctional chemosensors: An experimental and computational approach. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Algethami JS. A Review on Recent Progress in Organic Fluorimetric and Colorimetric Chemosensors for the Detection of Cr 3+/6+Ions. Crit Rev Anal Chem 2022; 54:487-507. [PMID: 35758232 DOI: 10.1080/10408347.2022.2082242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Chromium occurs in the environment primarily in two valence states, trivalent Cr3+ and hexavalent Cr6+, which have different physicochemical and biochemical properties. However, the higher concentration of Cr3+/6+ can cause various adverse effects on human health. Therefore, detecting Cr3+/6+ ions is important in various samples. Colorimetric and fluorescent chemosensors are the most powerful tools for the detection of Cr3+/6+ ions. These chemosensors have excellent bioimaging capability and significant sensitivity and selectivity. In this article, different colorimetric and fluorescent chemosensors based on organic compounds, including Schiff base, antipyrine, diarylethene, pyrene, crown ether, dansyl, pyridine, thiazole, coumarin, boradiazaindacene, rhodamine, imidazole, hydrazone, and other functional groups for detection of Cr3+/6+ ions have been reviewed, classified them according to different fluorophore and recognition mode. I hope this article will help the readers for the future design of highly effective, sensitive, and selective chemosensors for the detection and determination of Cr3+/6+ ions.
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Affiliation(s)
- Jari S Algethami
- Department of Chemistry, College of Science and Arts, Najran University, Najran, Saudi Arabia
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7
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Basri R, Ahmed N, Khalid M, Khan MU, Abdullah M, Syed A, Elgorban AM, Al-Rejaie SS, Braga AAC, Shafiq Z. Quinoline based thiosemicarbazones as colorimetric chemosensors for fluoride and cyanide ions and DFT studies. Sci Rep 2022; 12:4927. [PMID: 35322108 PMCID: PMC8943172 DOI: 10.1038/s41598-022-08860-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 03/14/2022] [Indexed: 11/29/2022] Open
Abstract
High toxicity and extensive accessibility of fluoride and cyanide ions in diverse environmental media encouraged attention for scheming well-organized probes for their detection. Keeping in mind we have designed and synthesized thiosemicarbazone-based chemosensors RB-1, RB-2 and RB-3 for the detection of fluoride and cyanide ions. The structural elucidation of the synthesized chemosensors is done by employing different analytical techniques including nuclear magnetic resonance and electronic absorption specrtoscopies. Admirable detection limit, binding constant and fast response time (2 s) to F- and CN- ions enlarged the applications of these chemosensors. Additional confirmation of the sensing ability of these chemosensors is derived from DFT and TDDFT calculations with M06/6-311G(d,p) method by performing FMO, UV-Vis, QTAIM and global reactivity parameters elucidation. Overall results point out that investigated chemosensors are suitable candidates for sensing the F- ions. These chemosensors were successfully applied to detect F- ions in a commercial toothpaste sample.
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Affiliation(s)
- Rabia Basri
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Nadeem Ahmed
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan
| | - Muhammad Khalid
- Department of Chemistry, Khwaja Fareed University of Engineering & Information Technology, Rahim Yar Khan, 64200, Pakistan
| | | | - Muhammad Abdullah
- Department of Chemistry, Colorado State University, Fort Collins, CO, 80523, USA
| | - Asad Syed
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. 2455, Riyadh, 11451, Saudi Arabia
| | - Salim S Al-Rejaie
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, P.O. Box 55760, Riyadh, 11451, Saudi Arabia
| | - Ataualpa Albert Carmo Braga
- Departamento de Química Fundamental, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, Brazil
| | - Zahid Shafiq
- Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, 60800, Pakistan.
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8
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Amputu MN, Naimhwaka J, Uahengo V. An ESIPT-ICT steered naphthylthioic-based ionic probe with dual emissive channels exhibiting CHEF and CHEQ effects. RSC Adv 2022; 12:27022-27043. [PMID: 36320834 PMCID: PMC9490809 DOI: 10.1039/d2ra04568k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 09/15/2022] [Indexed: 11/30/2022] Open
Abstract
A naphthylthioic-based emissive probe (M) bearing a hydroxyl and amine group was designed and synthesized via a one-step Schiff base reaction process. The probe was characterized spectroscopically using 1H NMR, UV-Vis and fluorescence spectrophotometers. The probe turned out to be spectroscopically and colorimetrically selective and sensitive to multiple cations and anions. Interestingly, the probe displayed characteristics of excited-state intramolecular proton transfer (ESIPT)-driven dual emissive channels; experiencing fluorescence enhancement upon the molar additions of Al3+ as well as the anions used, events presumably ascribed to chelation fluorescence enhancement (CHEF), hydrogen bonding and deprotonation effects. Moreover, the fluorometric titration with Hg2+ resulted in ratiometric spectral behaviors of M, with the disappearance of the peak at 450 nm, concomitant with the appearance of a new peak at 520 nm, distinguished by a clear isosbestic point, the same behaviors exhibited by Sn2+ and Ag+ analytes towards M. The introduction of all other cations used, resulted in fluorescence quenching, attributable to chelation enhanced fluorescence quenching (CHEQ), thereby inhibiting the ESIPT process. The experiments were all carried out in the aqueous environment medium of DMSO–H2O (9 : 1) at ambient temperature. Theoretical density functional theory calculations were carried out to gain insight into the interaction of M with cations and anions, and their influence on the HOMO–LUMO energy gaps. A naphthylthioic-based emissive probe (M) bearing a hydroxyl and amine group was designed and synthesized via a one-step Schiff base reaction process.![]()
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Affiliation(s)
- Martha N. Amputu
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Johannes Naimhwaka
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Veikko Uahengo
- Department of Physics, Chemistry and Material Science, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
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9
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Hishimone PN, Hamukwaya E, Uahengo V. The C 2-Symmetry Colorimetric Dye Based on a Thiosemicarbazone Derivative and its Cadmium Complex for Detecting Heavy Metal Cations (Ni 2+, Co 2+, Cd 2+, and Cu 2+) Collectively, in DMF. J Fluoresc 2021; 31:999-1008. [PMID: 33880707 DOI: 10.1007/s10895-021-02734-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Accepted: 04/09/2021] [Indexed: 10/21/2022]
Abstract
The field of chemosensing has been experiencing an exponential expansion in recent times, due to increased demands for simpler and user-friendly analytical techniques, in order to combat and confront the challenges of industrial pollutions in the twenty-first century. Metal complex-based chemosensors have received little attention while exhibiting excellent sensing properties, comparing to their organic counterparts. Thus, a thiosemicarbazone-based (H) and its cadmium complex (P) were synthesized, characterized and their photophysical and chemosensing properties were investigated in DMF solvent. The addition of molar equivalents of selected cations (of nitrates or chloride salts) to H and P, produced visually detectable colour changes as well as remarkable spectral shifts. Explicitly, the two probes (H and P) were able to collectively discriminate heavy metal cations such as Cd2+, Co2+, Zn2+, Cu2+, Ni2+, and Ag+, both in DMF, among all other heavy metal cations tested. None of the anions could be detected by H or P, even when the tetrabutylammonium salts (TBAs) were used, the action presumably ascribed to the solvent effect. Thus, H and P can be used to selectively and sensitively detect the presence of heavy metal cations, via naked-eye detectable colour changes in an aqueous soluble solvent such as DMF.
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Affiliation(s)
- Philipus N Hishimone
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Eunike Hamukwaya
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia
| | - Veikko Uahengo
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
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10
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Bhat MP, Kurkuri M, Losic D, Kigga M, Altalhi T. New optofluidic based lab-on-a-chip device for the real-time fluoride analysis. Anal Chim Acta 2021; 1159:338439. [PMID: 33867030 DOI: 10.1016/j.aca.2021.338439] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/02/2021] [Accepted: 03/18/2021] [Indexed: 10/21/2022]
Abstract
A PDMS (Polydimethylsiloxane) microfluidic channel coupled with UV-vis fibre-optic spectrometer and new synthesized colorimetric probe was integrated into an optofluidic based Lab-on-a-chip device for highly sensitive and real-time quantitative measurements of fluoride ions (F¯). An 'S' shaped microchannel in a microfluidic device was designed to act as microreactor to facilitate the continuous reaction between synthetized colorimetric probe (sensor) and F¯ ions. Following this reaction, the UV-vis optical probe in the downstream detection zone of the microfluidic device was used to capture their spectrum and present as F¯ concentration in real-time conditions. An initial study of the developed colorimetric probe with multi-colour change with several binding and chromophore groups such as -OH, -NH and -NO2 groups confirmed its high sensitivity and selectivity for F¯ ions with a detection limit of 0.79 ppm. The performance of the developed optofluidic device was evaluated for the selective, sensitive detection of F¯ ions including real samples out-performing conventional methods. The technology has advantages such as low sample consumption, rapid analysis, high sensitivity and portability. Presented new Lab-on-a-chip device provides many competitive advantages for the real-time analysis of F¯ ions needed across broad sectors.
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Affiliation(s)
- Mahesh P Bhat
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru, 562112, Karnataka, India
| | - Mahaveer Kurkuri
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru, 562112, Karnataka, India.
| | - Dusan Losic
- School of Chemical Engineering, ARC Hub for Graphene Enabled Industry Transformation, The University of Adelaide, Adelaide, SA, 5005, Australia.
| | - Madhuprasad Kigga
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bengaluru, 562112, Karnataka, India
| | - Tariq Altalhi
- Department of Chemistry, Faculty of Science, Taif University, Taif, Saudi Arabia
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11
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Zavala-Contreras B, Santacruz-Ortega H, Orozco-Valencia AU, Inoue M, Ochoa Lara K, Navarro RE. Optical Anion Receptors with Urea/Thiourea Subunits on a TentaGel Support. ACS OMEGA 2021; 6:9381-9390. [PMID: 33869918 PMCID: PMC8047691 DOI: 10.1021/acsomega.0c05554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
Two simple chemosensors with urea (L1) and thiourea (L2) groups were synthesized and studied by different spectroscopic techniques. Both receptors can sense acetate (Ac-), dihydrogen phosphate (H2PO4 -), and fluoride (F-) anions, accompanied by changes in UV-vis and 1H NMR spectra, and an optical response is observed as a color change of the solutions due to deprotonation and hydrogen-bonding processes. Also, L1 and L2 were supported on TentaGel resins (R1 and R2), and their fluoride-sensing properties in DMSO and water solutions were studied. Interestingly, R2 can sense fluoride ions in sample solutions of 100% water.
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12
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Junaid HM, Batool M, Harun FW, Akhter MS, Shabbir N. Naked Eye Chemosensing of Anions by Schiff Bases. Crit Rev Anal Chem 2020; 52:463-480. [DOI: 10.1080/10408347.2020.1806703] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Madeeha Batool
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
| | - Farah Wahida Harun
- Faculty of Science and Technology, Universiti Sains Islam Malaysia, Nilai, Negeri Sembilan, Malaysia
| | | | - Nabila Shabbir
- Institute of Chemistry, University of the Punjab, Lahore, Pakistan
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13
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Lowdon JW, Ishikura H, Radchenko A, Arreguin-Campos R, Rogosic R, Heidt B, Jimenez Monroy K, Peeters M, Diliën H, Eersels K, Cleij TJ, van Grinsven B. Rapid Colorimetric Screening of Elevated Phosphate in Urine: A Charge-Transfer Interaction. ACS OMEGA 2020; 5:21054-21066. [PMID: 32875242 PMCID: PMC7450649 DOI: 10.1021/acsomega.0c02651] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 08/05/2020] [Indexed: 05/08/2023]
Abstract
A charge-transfer (CT) interaction between 1,3,5-trinitro-2,4-dimethylbenzene (TNX) and anionic phosphate is evaluated, yielding a high band electronic transfer interaction that can be observed as a distinct color change when phosphate is present in solution. The induced interaction was studied using 1H NMR, UV-visible, and Fourier transform infrared spectroscopies. The stoichiometric determination of the interaction was divined by means of continuous variation, applying the Schaeppi-Treadwell method to calculate the binding constant (k). Furthermore, the effect of the polarity of solvents toward the generation of the CT interaction was examined, with multiple solvents considered. Complex deconstruction studies were undertaken, examining the effects of water on complex destruction and understanding the volumes needed to hinder the CT interaction potency. Specificity and selectivity of the CT interaction were also studied against other biologically relevant species (CH3CH2OH, Na+, K+, Ca2+, Cl-, HCO3 -, F-, CH3COO-, and SO4 2-), assessing the capabilities of the assay to differentiate anionic species and counter cations that could act as interferences. The role of TNX concentration in CT formation was also analyzed, aiming to optimize the phosphate-sensing assay and improve its limit of detection. The sensing platform was subsequently used to study phosphate concentrations in urine samples to further understand its potential application in biomedical research. To validate the developed technique, urine samples were analyzed for their phosphate content with both the developed sensor and a validated vanadate-molybdate reagent. The results indicate that the sensing method is capable of accurately reporting elevated phosphate levels in urine samples in a rapid and sensitive manner, illustrating that the colorimetric test could be used as a prescreening test for conditions such as hyperphosphatemia or chronic kidney disease.
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Affiliation(s)
- Joseph W. Lowdon
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Hikaru Ishikura
- Maastricht
Science Programme, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Ash Radchenko
- Maastricht
Science Programme, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Rocio Arreguin-Campos
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Renato Rogosic
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Benjamin Heidt
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Kathia Jimenez Monroy
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Marloes Peeters
- School
of Engineering, Newcastle University, Merz Court, Tyne NE1 7RU, U.K.
| | - Hanne Diliën
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Kasper Eersels
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Thomas J. Cleij
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
| | - Bart van Grinsven
- Sensor
Engineering Department, Faculty of Science and Engineering, Maastricht University, P.O. Box 616, Maastricht 6200 MD, The Netherlands
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14
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Yang Z, Li C, Liu X, Zhao S, Qu M, Sun S, Zhang Z, Yang Z, Chen X. Copper(II) Complex of a Urea‐functionalized Pyridyl Ligand: Synthesis, Crystal Structure, and Acetate Binding Properties. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.202000175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zaiwen Yang
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Natural Resources 710021 Xi'an Shaanxi P. R. China
| | - Chun Li
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
| | - Xiangrong Liu
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Natural Resources 710021 Xi'an Shaanxi P. R. China
| | - Shunsheng Zhao
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Natural Resources 710021 Xi'an Shaanxi P. R. China
| | - Mengnan Qu
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
| | - Shasha Sun
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
| | - Zhen Zhang
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
| | - Zheng Yang
- College of Chemistry and Chemical Engineering Xi'an University of Science and Technology 710054 Xi'an Shaanxi P. R. China
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Natural Resources 710021 Xi'an Shaanxi P. R. China
| | - Xinjuan Chen
- Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Natural Resources 710021 Xi'an Shaanxi P. R. China
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15
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Synthesis and characterization of 1,2,3-triazoles-linked urea hybrid sensor for selective sensing of fluoride ion. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127437] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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16
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4-Functionalized terpyridine derivative as dual responsive chemosensor for biologically important inorganic cations and fluoride anion. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-019-01851-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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Uahengo V, Naimhwaka J, Daniel LS, Rahman A, Elzagheid MI, Rhyman L, Ramasami P, Cai P. A colorimetric probe for the real-time naked eye detection of cyanide and hydroxide ions in tap water: experimental and theoretical studies. Analyst 2019; 144:6422-6431. [PMID: 31584578 DOI: 10.1039/c9an01481k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Herein, a colorimetric sensor (L) based on a naphthyl derivative bearing hydrazone receptors was synthesized via a one-step reaction process, and its recognition properties towards biologically important anions in an acetonitrile-water mixture were investigated by naked-eye observation and UV-Vis and 1H NMR spectroscopy. The molar addition of anions, such as TBAF-, TBAOH-, TBACN- and TBAAcO-, induced a significant red shift in the charge transfer band (Δλ = 73 nm, from 337 nm to 410 nm), in agreement with visible "naked eye" detectable colorimetric activities; in addition, soaked-in-L paper strips were prepared, which could significantly discriminate cyanide (KCN) and hydroxide (NaOH) ions dissolved in tap water via the litmus test method. This study was complemented by density functional theory computations to gain more insight into the interaction between L and anions.
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Affiliation(s)
- Veikko Uahengo
- Department of Chemistry and Biochemistry, University of Namibia, 340 Mandume Ndemufayo Avenue, Windhoek, 9000, Namibia.
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18
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Design and synthesis ethynyl ferrocene-based multifunctional chemosensors for fluoride anion. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-03808-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Gómez-Vega J, Moreno-Corral RA, Santacruz Ortega H, Corona-Martínez DO, Höpfl H, Sotelo-Mundo RR, Ochoa-Terán A, Escobar-Picos RE, Ramírez-Ramírez JZ, Juárez-Sánchez O, Lara KO. Anion, cation and ion-pair recognition by bis-urea based receptors containing a polyether bridge. Supramol Chem 2019. [DOI: 10.1080/10610278.2019.1578884] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jancarlo Gómez-Vega
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, México
| | | | - Hisila Santacruz Ortega
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, México
| | - David Octavio Corona-Martínez
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, México
- Departamento de Ciencias de la Salud, Universidad de Sonora, Campus Cajeme, Cd. Obregón, México
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Cuernavaca, México
| | - Rogerio R. Sotelo-Mundo
- Laboratorio de Estructura Biomolecular, Centro de Investigación en Alimentación y Desarrollo, Hermosillo, México
| | - Adrián Ochoa-Terán
- Centro de Graduados e Investigación en Química. Tecnológico Nacional de México, Tijuana, México
| | | | | | | | - Karen Ochoa Lara
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Hermosillo, México
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20
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Li Z, Wang S, Xiao L, Li X, Jing X, Peng X, Ren L. An efficient colorimetric and absorption ratiometric anion sensor based on a simple azo-azomethine receptor. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Reddy PM, Hsieh SR, Wu WC, Chang CJ, Chen YS, Lee MC. Quinone based oligomeric sensors as colorimetric probes for cyanide anion: Effects of solvent medium and substituent on sensing. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2017.12.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Singh A, Sahoo SK, Trivedi DR. Colorimetric anion sensors based on positional effect of nitro group for recognition of biologically relevant anions in organic and aqueous medium, insight real-life application and DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:596-610. [PMID: 28779621 DOI: 10.1016/j.saa.2017.07.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/17/2017] [Accepted: 07/28/2017] [Indexed: 05/24/2023]
Abstract
A new six colorimetric receptors A1-A6 were designed and synthesized, characterized by typical common spectroscopic techniques like FT-IR, UV-Visible, 1H NMR, 13C NMR and ESI-MS. The receptor A1 and A2 exhibit a significant naked-eye response towards F- and AcO- ions in DMSO. Due to presences of the NO2 group at para and ortho position with extended π-conjugation of naphthyl group carrying OH as a binding site. Compared to receptor A2, A1 is extremely capable of detecting F- and AcO- ions present in the form of sodium salts in an aqueous medium. This is owed to the occurrence of NO2 group at para position induced in increasing the acidity of OH proton. Consequently, it easily gets deprotonated in aqueous media. The detection limit of receptor A1 was turned out to be 0.40 and 0.35ppm for F- and AcO- ions which is beneath WHO permission level (1.0ppm). Receptor A1 shows a solitary property of solvatochromism in different aprotic solvents in presence of AcO- ion. Receptor A1 depicts high selectivity towards AcO- ion in DMSO: HEPES buffer (9:1, v/v). Receptor A1 proved itself for real life application by detecting anion in solution and solid state. The binding mechanism of receptor A1 with AcO- and F- ions was monitored from 1HNMR titration and DFT study.
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Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India
| | - Suban K Sahoo
- Department of Applied Chemistry, S.V. National Institute Technology Surat, 395 007, Gujarat, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India.
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23
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While deprotonating 1-(4-nitrophenyl)-3-((pyridin-4-yl)methyl)thiourea by tetrabutylammonium fluoride also provides a means for etching of glass. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.05.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Singh G, Saroa A, Rani S, Promila, Choquesillo-Lazarte D, Sahoo S. Unsymmetrically urea silatranes: Synthesis, characterization and a selective on–off fluorescence response to acetate anion. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2015.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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25
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Rouzi K, Abulikemu A, Zhao J, Wu B. A study on the synthesis and anion recognition of a chitosan-urea receptor. RSC Adv 2017. [DOI: 10.1039/c7ra09431k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chitosan-urea receptor for sensing PO43− and F− anions.
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Affiliation(s)
- Kuerbanjiang Rouzi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Abuderixiti Abulikemu
- College of Chemistry and Chemical Engineering
- Xinjiang Normal University
- Urumqi
- P. R. China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
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26
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Alici O. A novel tripodal colorimetric and fluorescence "turn on" chemosensor for AcO(-) and F(-) anions in CH3CN. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 167:78-83. [PMID: 27258686 DOI: 10.1016/j.saa.2016.05.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 03/25/2016] [Accepted: 05/22/2016] [Indexed: 06/05/2023]
Abstract
A novel chemosensor, 3',3‴,3‴″-(((nitrilotris(ethane-2,1-diyl))tris(azanylylidene))tris(methanylylidene))tris(4-hydroxy-4'-biphenylcarbonitrile) (L) was synthesized and characterized by the combination of (1)H,(13)C, APT, COSY NMR, FT-IR, and elemental analysis. The behavior of the receptor (L) toward different anions was investigated using UV-visible and fluorescence spectroscopy. The receptor (L) indicated an efficient colorimetric "naked-eye" and "turn on" fluorescent response for fluoride and acetate in CH3CN, respectively.
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Affiliation(s)
- Onder Alici
- Selcuk University, Science Faculty, Department of Chemistry, 42130, Turkey.
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27
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Banerji B, Chatterjee M, Pal U, Maiti NC. Molecular Details of Acetate Binding to a New Diamine Receptor by NMR and FT-IR Analyses. J Phys Chem A 2016; 120:2330-41. [DOI: 10.1021/acs.jpca.6b01078] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Biswadip Banerji
- Organic & Medicinal Chemistry Division and ‡Structural Biology & Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Moumita Chatterjee
- Organic & Medicinal Chemistry Division and ‡Structural Biology & Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Uttam Pal
- Organic & Medicinal Chemistry Division and ‡Structural Biology & Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
| | - Nakul Chandra Maiti
- Organic & Medicinal Chemistry Division and ‡Structural Biology & Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S.C. Mullick Road, Kolkata 700032, India
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28
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The anion recognition properties of a novel hydrazone based on colorimetric and potentiometric studies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:548-57. [DOI: 10.1016/j.msec.2015.08.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Revised: 07/31/2015] [Accepted: 08/28/2015] [Indexed: 02/04/2023]
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29
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Wang X, Yang C, Yan M, Ge S, Yu J. A novel fluorescence probe based on p-acid-Br and its application in thiourea detection. RSC Adv 2016. [DOI: 10.1039/c6ra06953c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel organic fluorescence system was developed to detect thiourea based on p-acid-Br, which in the range of 0.5–1000 nM and with a detection limit of 0.26 nM. And this method provides a new promising platform for clinical analysis.
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Affiliation(s)
- Xiu Wang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Chunlei Yang
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Mei Yan
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
| | - Shenguang Ge
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- P. R. China
| | - Jinghua Yu
- School of Chemistry and Chemical Engineering
- University of Jinan
- Jinan 250022
- P. R. China
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30
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Blažek Bregović V, Basarić N, Mlinarić-Majerski K. Anion binding with urea and thiourea derivatives. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.03.011] [Citation(s) in RCA: 214] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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31
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Khanmohammadi H, Rezaeian K, Abdollahi A. Colorimetric detection of anions in aqueous media using N-monosubstituted diaminomaleonitrile-based azo-azomethine receptors: real-life applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:405-412. [PMID: 25576937 DOI: 10.1016/j.saa.2014.12.088] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 11/27/2014] [Accepted: 12/17/2014] [Indexed: 06/04/2023]
Abstract
New N-monosubstituted diaminomaleonitrile-based azo-azomethine dyes have been synthesized in order to develop colorimetric sensors for detection of biologically important anions in aqueous media. Importantly, the reported sensor decorated with strong electron-withdrawing group can detect inorganic fluoride in water even at 0.037 ppm level, which is lower than WHO permissible level (below 1 ppm). Successfully, the prepared dyes were used for qualitative and quantitative detection of inorganic fluoride in toothpaste and mouthwash. The anion recognition mechanism was also investigated by detailed UV-Vis and (1)H NMR experiments. The detailed (1)H NMR experiments corroborated that anion recognition is based on the deprotonation phenomenon.
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Affiliation(s)
- Hamid Khanmohammadi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran.
| | - Khatereh Rezaeian
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
| | - Alieh Abdollahi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
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32
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Rezaeian K, Khanmohammadi H. Naked-eye detection of biologically important anions by a new chromogenic azo-azomethine sensor. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:31-37. [PMID: 24929312 DOI: 10.1016/j.saa.2014.05.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 05/05/2014] [Accepted: 05/14/2014] [Indexed: 06/03/2023]
Abstract
A new chromogenic azo-azomethine sensor, containing active phenolic sites, has been designed and synthesized via condensation reaction of N,N,N',N'-tetrakis(2-aminoethyl)-2,2-dimethyl propane-1,3-diamine with 1-(3-formyl-4-hydroxyphenylazo)-4-nitrobenzene. The anion recognition ability of the synthesized receptor was evaluated using UV-Vis spectroscopy and (1)H NMR technique. The anion recognition studies exhibited that the receptor acts as a sensor for biologically important anions such as F(-), AcO(-) and H2PO4(-) over other anions. The binding stoichiometry between sensor and anions was found to be 1:2. (1)H NMR experiment revealed that sensor recognizes anions via H-bonds and subsequent deprotonation to elicit a vivid color change. Interestingly, the sensory system not only let for the naked eye detection without any spectroscopic instrumentation but also helped to discriminate between anions.
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Affiliation(s)
- Khatereh Rezaeian
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran
| | - Hamid Khanmohammadi
- Department of Chemistry, Faculty of Science, Arak University, Arak 38156-8-8349, Iran.
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33
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Goswami S, Das MK, Manna A. Pterin-based highly selective, ratiometric, and sensitive ‘naked-eye’ sensor for acetate. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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