1
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Rajendran P, Murugaperumal P, Nallathambi S, Perdih F, Ayyanar S, Chellappan S. Performance of 4,5-diphenyl-1H-imidazole derived highly selective 'Turn-Off' fluorescent chemosensor for iron(III) ions detection and biological applications. LUMINESCENCE 2024; 39:e4694. [PMID: 38414310 DOI: 10.1002/bio.4694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/10/2023] [Accepted: 01/28/2024] [Indexed: 02/29/2024]
Abstract
Two fluorescent chemosensors, denoted as chemosensor 1 and chemosensor 2, were synthesized and subjected to comprehensive characterization using various techniques. The characterization techniques employed were Fourier-transform infrared (FTIR), proton (1 H)- and carbon-13 (13 C)-nuclear magnetic resonance (NMR) spectroscopy, electrospray ionization (ESI) mass spectrometry, and single crystal X-ray diffraction analysis. Chemosensor 1 is composed of a 1H-imidazole core with specific substituents, including a 4-(2-(4,5-c-2-yl)naphthalene-3-yloxy)butoxy)naphthalene-1-yl moiety. However, chemosensor 2 features a 1H-imidazole core with distinct substituents, such as 4-methyl-2-(4,5-diphenyl-1H-imidazole-2-yl)phenoxy)butoxy)-5-methylphenyl. Chemosensor 1 crystallizes in the monoclinic space group C2/c. Both chemosensors 1 and 2 exhibit a discernible fluorescence quenching response selectively toward iron(III) ion (Fe3+ ) at 435 and 390 nm, respectively, in dimethylformamide (DMF) solutions, distinguishing them from other tested cations. This fluorescence quenching is attributed to the established mechanism of chelation quenched fluorescence (CHQF). The binding constants for the formation of the 1 + Fe3+ and 2 + Fe3+ complexes were determined using the modified Benesi-Hildebrand equation, yielding values of approximately 2.2 × 103 and 1.3 × 104 M-1 , respectively. The calculated average fluorescence lifetimes for 1 and 1 + Fe3+ were 2.51 and 1.17 ns, respectively, while for 2 and 2 + Fe3+ , the lifetimes were 1.13 and 0.63 ns, respectively. Additionally, the applicability of chemosensors 1 and 2 in detecting Fe3+ in live cells was demonstrated, with negligible observed cell toxicity.
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Affiliation(s)
- Praveena Rajendran
- Department of Industrial Chemistry, Alagappa University, Karaikudi, India
| | | | - Sengottuvelan Nallathambi
- Department of Chemistry, Directorate of Distance Education (DDE), Alagappa University, Karaikudi, India
| | - Franc Perdih
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
| | - Siva Ayyanar
- Department of Inorganic Chemistry, Madurai Kamaraj University, Madurai, India
| | - Selvaraju Chellappan
- National Center for Ultrafast Process, University of Madras, Tarmani Campus, Chennai, India
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2
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Ullah Q, Khan SA, Arifuddin M, Mohsin M, Kausar S, Fatema N, Ahmer MF. Recent Developments in Colorimetric and Fluorometric Detection Methods of Trivalent Metal Cations (Al 3+, Fe 3+ and Cr 3+) Using Schiff Base Probes: At a Glance. J Fluoresc 2023:10.1007/s10895-023-03514-7. [PMID: 38133749 DOI: 10.1007/s10895-023-03514-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/14/2023] [Indexed: 12/23/2023]
Abstract
This review basically concerned with the application of different Schiff bases (SB) based fluorimetric (turn-off and turn-on) and colorimetric chemosensors for the detection of heavy metal cations particularly Al(III), Fe(III), and Cr(III) ions. Chemosensors based on Schiff bases have exhibited outstanding performance in the detection of different metal cations due to their facile and in-expensive synthesis, and their excellent coordination ability with almost all metal cations and stabilize them in different oxidation states. Moreover, Schiff bases have also been used as antifungal, anticancer, analgesic, anti-inflammatory, antibacterial, antiviral, antioxidant, and antimalarial etc. The Schiff base also can be used as an intermediate for the formation of various heterocyclic compounds. In this review, we have focused on the research work performed on the development of chemosensors (colorimetric and fluorometric) for rapid detection of trivalent metal cations particularly Al(III), Fe(III), and Cr(III) ions using Schiff base as a ligand during 2020-2022.
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Affiliation(s)
- Qasim Ullah
- Chemistry Section, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Salman Ahmad Khan
- Chemistry Section, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Mohammed Arifuddin
- Chemistry Department, Directorate of Distance Education (DDE), Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Md Mohsin
- Chemistry Section, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Samrin Kausar
- Chemistry Section, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Nahid Fatema
- Chemistry Section, School of Sciences, Maulana Azad National Urdu University, Gachibowli, Hyderabad, 500032, India
| | - Mohammad Faraz Ahmer
- Department of Electrical and Electronics Engineering, Mewat Engineering College, Nuh Gurugram University Haryana, Gurugram, India.
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3
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Saremi M, Kakanejadifard A, Ghasemian M, Namdari M. A colorimetric and turn-on fluorescent sensor for rapid and selective detection of Fe3+ ion based on azo compound of 4-((4-(dimethylamino) phenyl)diazenyl)-N-(pyridin-2-yl)benzamide. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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4
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Bhunia S, Halder S, Naskar K, Dutta B, Sahoo D, Jana K, Sinha C. Spectrophotometric Determination of Trace Amount of Total Fe II/Fe III and Live Cell Imaging of a Carboxylato Zn(II) Coordination Polymer. Inorg Chem 2022; 61:19790-19799. [PMID: 36446631 DOI: 10.1021/acs.inorgchem.2c02915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
The coordination polymer, (Zn(II)-CP, 1), {[Zn(2,6-NDC)(4-Cltpy)](H2O)4} (1) (2,6-H2NDC = 2,6-naphthalene dicarboxylic acid and 4-Cltpy = 4'-chloro-[2,2';6',2″]terpyridine) is structurally characterized by single crystal X-ray diffraction measurement and other physicochemical studies (PXRD, FTIR, thermal analysis, microanalytical data). 4-Cltpy acts as end-capping ligand, and NDC2- is a carboxylato bridging motif to constitute ZnN3O2 distorted trigonal bipyramid core that propagates to construct 1D chain. The coordination polymer, 1, detects total iron (Fe3+ and Fe2+) in aqueous solution by visual color change, colorless to pink. Absorption spectrophotometric technique in aqueous medium measures the limit of detection (LOD) 0.11 μM (Fe2+) and 0.15 μM (Fe3+), and binding constants (Kd) are 6.7 × 104 M-1 (Fe3+) and 3.33 × 104 M-1 (Fe2+). Biocompatibility of 1 is examined in live cells, and intracellular Fe2+ and Fe3+ are detected in MDA-MB 231 cells. Zn(II) substitution is assumed upon addition of FeIII/FeII solution to the suspension of the coordination polymer, 1, in water-acetonitrile (41:1) (LZnII + FeIII/II → LFeIII + ZnII, where L is defined as coordinated ligands), which is accompanied by changing from colorless to pink at room temperature. The color of the mixture may be assumed to the charge transfer transition from carboxylate-O to Cltpy via Fe(II/III) bridging center (carboxylate-O-Fe-CltPy). The product isolated from the reaction is finally characterized as Fe(III)@1-CP. It is presumed that product Fe(II)@1-CP may undergo fast aerial oxidation to transform Fe(III)@1-CP. The FeIII exchanged framework (Fe(III)@1-CP) has been characterized by PXRD, IR, TGA and energy dispersive X-ray analysis (EDX)-SEM. The MTT assay calculates the cell viability (%), and the tolerance limit is 100 μM to total Fe2+ and Fe3+.
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Affiliation(s)
- Suprava Bhunia
- Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India
| | - Satyajit Halder
- Division of Molecular Medicine, Bose Institute, Kolkata 700056, India
| | - Kaushik Naskar
- Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India
| | - Basudeb Dutta
- Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India
| | - Dipankar Sahoo
- Department of Physics, Jadavpur University, Kolkata, West Bengal 700032, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, Kolkata 700056, India
| | - Chittaranjan Sinha
- Department of Chemistry, Jadavpur University, Kolkata, West Bengal 700032, India
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5
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AIE active quinazoline based probes for selective detection of Fe3+ and acidochromism. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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6
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Enbanathan S, Munusamy S, Jothi D, Manojkumar S, Manickam S, Iyer SK. Zinc ion detection using a benzothiazole-based highly selective fluorescence "turn-on" chemosensor and its real-time application. RSC Adv 2022; 12:27839-27845. [PMID: 36320258 PMCID: PMC9520313 DOI: 10.1039/d2ra04874d] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/19/2022] [Indexed: 07/25/2023] Open
Abstract
A new photochromic fluorescence chemosensor was devised and effectively synthesized using benzothiazole and imidazopyridine derivatives. A "turn-on" fluorescence sensor BIPP for Zn2+ detection was developed and has a quick response, excellent sensitivity, and remarkable selectivity over other metal ions. When Zn2+ was added to the BIPP solution, a new strong fluorescence emission peak at 542 nm formed with a considerable increase in intensity. The fluorescence color of the BIPP solution changed from blue to bright green. The binding ratio 8 : 2 was found between BIPP and Zn2+ by the results of Job's plot, HRMS and 1H-NMR. The detection limit (LOD) of BIPP towards Zn2+ was determined to be 2.36 × 10-8, which is remarkably low. The ability to detect Zn2+ in real water samples demonstrates that BIPP may also be used in environmental systems. Additionally, BIPP can be used to measure Zn2+ levels in living cells.
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Affiliation(s)
- Saravanan Enbanathan
- Department of Chemistry, School of Advanced Sciences and Vellore Institute of Technology Vellore-632014 India
| | - Sathishkumar Munusamy
- Department of Chemistry, Faculty of Science, Chulalongkorn University Phayathai Rd., Pathumwan Bangkok 10330 Thailand
| | - Dhanapal Jothi
- Department of Chemistry, School of Advanced Sciences and Vellore Institute of Technology Vellore-632014 India
| | - Selin Manojkumar
- Department of Chemistry, School of Advanced Sciences and Vellore Institute of Technology Vellore-632014 India
| | - Saravanakumar Manickam
- Department of Chemistry, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences (SIMATS) Chennai-602 105 Tamil Nadu India
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7
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Thanigachalam S, Pathak M, Sathiyanarayanan KI. Photodegradation of rhodamine-B and methyl orange employing nano-alumina developed from new aluminium(III) complex(es) associated with phenanthridine-salicylaldehyde derived ligands. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2120814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Sathish Thanigachalam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Madhvesh Pathak
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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8
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Singh G, Diksha, xx M, Suman, Shilpy, Devi A, Gupta S, Yadav R, Sehgal R. Benzothiazole tethered triazole based potential antibacterial agent as a selective fluorometric probe for the detection of Al3+ ions and phenylalanine. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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A ratiometric fluorescent sensor based azo compound of 4-(4-Dimethylamino-phenylazo)-N-pyridin-2-ylmethyl-benzamide for rapid and selective detection of Fe3+ ion. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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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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11
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Mishra S, Kumar Singh A. Real time sensor for Fe 3+, Al 3+, Cu 2+ & PPi through quadruple mechanistic pathways using a novel dipodal quinoline-based molecular probe. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 270:120832. [PMID: 35065423 DOI: 10.1016/j.saa.2021.120832] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 11/23/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
A quinoline-based small molecular probe, H2L was designed, synthesized and characterized by different spectroscopic methods. It was utilized as a multi-responsive probe for the detection of Fe3+, Al3+, Cu2+ and PPi. It showed very selective instant turn-on fluorimetric response towards Fe3+and Al3+ with a detection limit in nanomolar range. Solutions of H2L containing Fe3+ or Al3+ could sequentially sense PPi by a turn-off mechanism. Also, H2L could determine the presence of Cu2+ very selectively among a series of other metal ions by a sharp change in colour. Detection of Cu2+ through colorimetry was further investigated by systematic UV-Vis studies and the potential of H2L to act as a potential colorimetric sensor for Cu2+ was suitably established. Filter-paper strip experiments were conducted to demonstrate the practical utility of the proposed sensor. Potential applications of H2L as a sensor for pH in the acidic range has also been explored.
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Affiliation(s)
- Sagarika Mishra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, 752050, India
| | - Akhilesh Kumar Singh
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Bhubaneswar, 752050, India.
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12
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Pandey N, Jyoti, Singh M, Dwivedi P, Sahoo SC, Mishra BB. Click chemistry inspired synthesis of andrographolide triazolyl conjugates for effective fluorescent sensing of ferric ions. Nat Prod Res 2021; 36:5438-5448. [PMID: 34905436 DOI: 10.1080/14786419.2021.2013837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The naturally occurring compound andrographolide 1 was used as a substrate for the synthesis of a novel terminal alkyne 3 which on copper(I)-catalyzed azide-alkyne cycloaddition (CuAAC) reaction with azides 4a-l, 7 and 9 furnished a series of regioselective andrographolide triazolyl conjugates 5a-l, 8 and 10, respectively. A free glycoconjugate 6 was also prepared by selective deprotection of compound 5i in good yield. All the compounds were characterized by absorbance, FT-IR, NMR, and HR-MS analyses. The triazolyl conjugate 8 was further investigated as a probe for selective detection of Fe3+ ion in matrix. The mode of attachment of Fe3+ ion to the compound 8 was established by absorbance, fluorescence, infrared (IR), and nuclear magnetic resonance (NMR) spectroscopy, and high resolution mass-spectrometry (HR-MS). The logic gate circuits were constructed for the probe 8 and ethylenediaminetetraacetic acid (EDTA). The environmental perspective of probe 8 was investigated in real water samples.
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Affiliation(s)
- Nishant Pandey
- Center of Innovative and Applied Bioprocessing (CIAB), Mohali, Punjab, India.,Department of Chemistry, Faculty of Science, Panjab University, Chandigarh, India
| | - Jyoti
- Center of Innovative and Applied Bioprocessing (CIAB), Mohali, Punjab, India.,Department of Chemistry, Faculty of Science, Panjab University, Chandigarh, India
| | - Mangat Singh
- Center of Innovative and Applied Bioprocessing (CIAB), Mohali, Punjab, India.,Department of Chemistry, Faculty of Science, Panjab University, Chandigarh, India
| | - Pratibha Dwivedi
- Center of Innovative and Applied Bioprocessing (CIAB), Mohali, Punjab, India
| | - Subash C Sahoo
- Department of Chemistry, Faculty of Science, Panjab University, Chandigarh, India
| | - Bhuwan B Mishra
- Center of Innovative and Applied Bioprocessing (CIAB), Mohali, Punjab, India
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13
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Mathavan S, Yamajala RBRD. Elemental Sulfur‐Promoted Tandem One‐Pot Synthesis of Diverse 4
H
‐Pyrimido[2,1‐
b
]benzothiazoles. ChemistrySelect 2021. [DOI: 10.1002/slct.202102302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sivagami Mathavan
- Department of Chemistry School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
| | - Rajesh B. R. D. Yamajala
- Department of Chemistry School of Chemical & Biotechnology SASTRA Deemed University Thanjavur 613401 India
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14
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Pattaweepaiboon S, Phiromphu N, Kaewchangwat N, Suttisintong K, Sirisaksoontorn W. An indolino-spironaphthooxazine probe for colorimetric detection of ferric ions in drinking water. NEW J CHEM 2021. [DOI: 10.1039/d1nj01166a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The sensing performance of a novel indolino-spironaphthooxazine derivative (SPNO), 6′(3,4-dihydroisoquinolin-2(1H)-yl)-3,3-dimethyl-1-phenethylspiro[indoline-2,3′-naphtho[2,1-b][1,4]oxazine], was investigated for rapid colorimetric detection of ferric ions (Fe3+) in drinking water.
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Affiliation(s)
- Supak Pattaweepaiboon
- Department of Chemistry and Centre of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
| | | | - Narongpol Kaewchangwat
- National Nanotechnology Centre (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathum Thani 12120
- Thailand
| | - Khomson Suttisintong
- National Nanotechnology Centre (NANOTEC)
- National Science and Technology Development Agency (NSTDA)
- Pathum Thani 12120
- Thailand
| | - Weekit Sirisaksoontorn
- Department of Chemistry and Centre of Excellence for Innovation in Chemistry
- Faculty of Science
- Kasetsart University
- Bangkok 10900
- Thailand
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15
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16
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Wang X, Chu C, Lv J, Jia Y, Lin L, Yang M, Zhang S, Huo D, Hou C. Simultaneous measurement of Cr(III) and Cu(II) based on indicator-displacement assay using a colorimetric nanoprobe. Anal Chim Acta 2020; 1129:108-117. [PMID: 32891379 DOI: 10.1016/j.aca.2020.07.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/13/2020] [Accepted: 07/03/2020] [Indexed: 12/18/2022]
Abstract
High-performance analysis of heavy metal ions is great importance in both environment and food safety. In this work, a facile and reliable colorimetric sensor was presented for simultaneous detection of Cu2+ and Cr3+ based on indicator-displacement assay (IDA). As a typical silicate nanomaterials, ZnSiO3 hollow nanosphere (ZSHS) exhibited an outstanding ion exchange capacity. Zincon was incorporated with the ZSHS to form a zincon/ZSHS hybrid ionophore with a blue color. Upon the addition of Cr3+, IDA reaction and selective ion exchange occurred with the color change of zincon/ZSHS ionophore from blue to yellow. With such a design, colorimetric measurement of Cr3+ was realized. The linear concentration for Cr3+ detection ranged from 0.5 μM to 75 μM with the LOD of 83.2 nM. Furthermore, we also screened different kinds of complexing agents that may respond with zincon/ZSHS ionophore and various metal ions. It was found that tartaric acid (TA) showed the chelation capability of Zn2+-TA is stronger than that of Zn2+-zincon. Thus zincon/ZSHS/TA presented a yellow color due to the chelation reaction of Zn2+-TA, releasing the zincon as a free state. After addition of Cu2+, a stronger chelation reaction of Cu2+-zincon occurred. This process involved in the color change from yellow to blue and realized colorimetric measurement of Cu2+. The detection limit of Cu2+ was calculated to be 43.7 nM with linear range from 0.1 to 20 μM. In addition, the zincon/ZSHS nanoprobe was successfully applied for simultaneous measurement of Cu2+ and Cr3+ in sorghum and river water, indicating that the zincon/ZSHS nanoprobe provided a promising sensing platform in environment and food safety.
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Affiliation(s)
- Xianfeng Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Chengxiang Chu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Jiayi Lv
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Yuanyuan Jia
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Libo Lin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Mei Yang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China
| | - Suyi Zhang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; National Engineering Research Center of Solid-State Brewing, Luzhou Laojiao Group Co. Ltd., Luzhou, 646000, PR China.
| | - Danqun Huo
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
| | - Changjun Hou
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, 400044, PR China; Chongqing Key Laboratory of Bio-perception & Intelligent Information Processing, School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, 400044, PR China.
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