1
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Erdemir S, Alici O, Aydin D, Kocyigit O. New Fe3+ specific "turn-on" fluorescent sensor based on H2 saldien-substituted phenanthroimidazole: Fabrication and practical applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116471] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2
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Manandhar E, Johnson ADG, Watson WM, Dickerson SD, Sahukhal GS, Elasri MO, Fronczek FR, Cragg PJ, Wallace KJ. Detection of ferric ions in a gram-positive bacterial cell: Staphylococcus aureus. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1868042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Erendra Manandhar
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Ashley D. G. Johnson
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, MS, USA
| | - William M. Watson
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Shelby D. Dickerson
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Gyan S. Sahukhal
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Mohamed O. Elasri
- Department of Biological Sciences, University of Southern Mississippi, Hattiesburg, MS, USA
| | - Frank R. Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA, USA
| | - Peter J. Cragg
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, UK
| | - Karl J. Wallace
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, MS, USA
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3
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Agnew-Francis KA, Williams CM. Squaramides as Bioisosteres in Contemporary Drug Design. Chem Rev 2020; 120:11616-11650. [DOI: 10.1021/acs.chemrev.0c00416] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kylie A. Agnew-Francis
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
| | - Craig M. Williams
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Queensland 4072, Australia
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4
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Lasitha P, Dasgupta S, Naresh Patwari G. Unraveling the Origin of Differentiable 'Turn-On' Fluorescence Sensing of Zn 2+ and Cd 2+ Ions with Squaramides. Chemphyschem 2020; 21:1564-1570. [PMID: 32488932 DOI: 10.1002/cphc.202000332] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 06/01/2020] [Indexed: 11/09/2022]
Abstract
A squaramide ring conjugated with Schiff-bases decorated with hydroxy and methoxy functional groups differentially senses zinc and cadmium ions, which turn on the fluorescence. The feebly emitting free ligands light up in the presence of zinc and cadmium acetates, with the acetate ion playing a pivotal role as a conjugate anion. The selective and differentiable emission responses for zinc and cadmium ions make these ligands efficient multi-analyte sensing agents. Furthermore, these ligands could be used to differentially sense zinc and cadmium ions even in aqueous environments. The NMR investigations reveal marginal differences in the binding of zinc and cadmium ions to the ligands, whereas density functional theory calculations suggest the different extent of ligand-to-metal charge transfer (LMCT) contributes to the differential behavior. Finally, comparison of the excited-state dynamics of free ligand and the metal complexes reveal the appearance of longer lifetime (about 500-700 ps) component with complexation, due to rigidified molecular skeleton, thereby impeding the non-radiative processes.
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Affiliation(s)
- P Lasitha
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - S Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
| | - G Naresh Patwari
- Department of Chemistry, Indian Institute of Technology Bombay Powai, Mumbai, 400076, India
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5
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Esteves CV, Costa J, Bernard H, Tripier R, Delgado R. A squaraine-based dipicolylamine derivative acting as a turn-on mercury(ii) fluorescent probe in water. NEW J CHEM 2020. [DOI: 10.1039/d0nj00852d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A squaraine-based ligand, sbdpa, has been synthesized, and the behaviour of its metal complexes was investigated. It was found that it acts as a Hg2+ chemosensor in aqueous solution.
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Affiliation(s)
- Catarina V. Esteves
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- Av. da República
- 2780–157 Oeiras
- Portugal
| | - Judite Costa
- Research Institute for Medicines (iMed.ULisboa)
- Faculdade de Farmácia
- Universidade de Lisboa
- Av. Prof. Gama Pinto
- 1649-003 Lisboa
| | - Hélène Bernard
- Univ Brest
- UMR-CNRS CEMCA 6521
- UFR des Sciences et Techniques
- 6 avenue Victor le Gorgeu
- 29200 Brest
| | - Raphaël Tripier
- Univ Brest
- UMR-CNRS CEMCA 6521
- UFR des Sciences et Techniques
- 6 avenue Victor le Gorgeu
- 29200 Brest
| | - Rita Delgado
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- Av. da República
- 2780–157 Oeiras
- Portugal
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6
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Liu QX, Yang F, Zhao ZX, Yu SC, Ding Y. Preparation of anthracene-based tetraperimidine hexafluorophosphate and selective recognition of chromium(III) ions. Beilstein J Org Chem 2019; 15:2847-2855. [PMID: 31839830 PMCID: PMC6902876 DOI: 10.3762/bjoc.15.278] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 11/02/2019] [Indexed: 11/23/2022] Open
Abstract
A novel anthracene-based tetraperimidine hexafluorophosphate 3 was prepared, and its structure was determined through X-ray analysis, HRMS as well as 1H and 13C NMR spectroscopy. In the cationic moiety of 3, two (N-ethylperimidinyl–C2H4)2NCH2– arms were attached to the 9- and 10-positions of anthracene. In addition, compound 3 was used as a chemosensor to research the ability to recognize Cr3+ through fluorescence and UV titrations, HRMS, as well as 1H NMR and IR spectroscopy. The results indicate that 3 is an effective chemosensor for Cr3+.
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Affiliation(s)
- Qing-Xiang Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Feng Yang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Zhi-Xiang Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Shao-Cong Yu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
| | - Yue Ding
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, MOE Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, College of Chemistry, Tianjin Normal University, Tianjin 300387, P. R. China
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7
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Mala R, Suman K, Nandhagopal M, Narayanasamy M, Thennarasu S. Chelation of specific metal ions imparts coplanarity and fluorescence in two imidazo[1,2-a]pyridine derivatives: Potential chemosensors for detection of metal ions in aqueous and biosamples. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 222:117236. [PMID: 31200265 DOI: 10.1016/j.saa.2019.117236] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 06/01/2019] [Accepted: 06/01/2019] [Indexed: 05/21/2023]
Abstract
Synthesis and chelation induced fluorescence emission from two imidazo[1,2-a]pyridine derivatives are described. The nonfluorescent molecule 1 containing N and O donor atoms, achieves coplanarity upon interactions with trivalent cations Al3+, Fe3+ and Cr3+, that favors fluorescence emission. Molecule 2 containing two N donor atoms attains coplanarity upon interaction with the only Zn2+ and becomes fluorescent. Both molecules 1 and 2 form a 1:1 complex with interacting metal ions. Other trivalent metal ions (including Bi3+ and In3+) and common divalent metal ions (including Hg2+ and Cd2+) fail to form any complex with 1 or 2, and they do not interfere in the detection of Zn2+, Al3+, Fe3+ or Cr3+ ions. Noninterference of other metal ions renders 1 and 2 suitable for the detection of fungal cells contaminated with Zn2+, Al3+, Fe3+ or Cr3+ ions.
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Affiliation(s)
- Ramanjaneyulu Mala
- Organic and Biorgnic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Koorathota Suman
- Organic and Biorgnic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India
| | - Manivannan Nandhagopal
- Biocontrol and Microbial Metabolites Lab, Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600025, India
| | - Mathivanan Narayanasamy
- Biocontrol and Microbial Metabolites Lab, Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600025, India
| | - Sathiah Thennarasu
- Organic and Biorgnic Chemistry Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-Central Leather Research Institute, Adyar, Chennai 600020, India.
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8
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Zuo Z, Song X, Guo D, Guo Z, Niu Q. A dual responsive colorimetric/fluorescent turn-on sensor for highly selective, sensitive and fast detection of Fe3+ ions and its applications. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.111876] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Srivastava S, Thakur N, Singh A, Shukla P, Maikhuri VK, Garg N, Prasad A, Pandey R. Development of a fused imidazo[1,2-a]pyridine based fluorescent probe for Fe3+ and Hg2+ in aqueous media and HeLa cells. RSC Adv 2019; 9:29856-29863. [PMID: 35531502 PMCID: PMC9072145 DOI: 10.1039/c9ra04743c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/15/2019] [Indexed: 01/04/2023] Open
Abstract
A new fluorescent sensor 5 having fused imidazopyridine scaffold has been synthesized via cascade cyclization. It exhibits highly sensitive and selective detection of Fe3+ (‘turn-on’) and Hg2+ (‘turn-off’) in vitro and in HeLa cells.
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Affiliation(s)
- Suman Srivastava
- Department of Applied Sciences
- National Institute of Technology
- Delhi
- India
| | - Neha Thakur
- Department of Chemistry
- National Institute of Technology Uttarakhand
- India
| | | | - Poonam Shukla
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | | | - Neha Garg
- Indian Institute of Technology
- Mandi
- India
| | - Ashok Prasad
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Rampal Pandey
- Department of Chemistry
- National Institute of Technology Uttarakhand
- India
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10
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Pivetta T, Masuri S, Cabiddu MG, Caltagirone C, Pintus A, Massa M, Isaia F, Cadoni E. A novel ratiometric and turn-on fluorescent coumarin-based probe for Fe(iii). NEW J CHEM 2019. [DOI: 10.1039/c9nj02044f] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
6-Methoxy-3-(pyridin-2-yl)-2H-chromen-2-one exhibited fluorescence enhancement in the presence of Fe(iii). This molecule was a selective fluorescent chemosensor for Fe(iii).
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Affiliation(s)
- Tiziana Pivetta
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Sebastiano Masuri
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Maria Grazia Cabiddu
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Claudia Caltagirone
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Anna Pintus
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Michela Massa
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Francesco Isaia
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
| | - Enzo Cadoni
- Dipartimento di Scienze Chimiche e Geologiche
- Università degli Studi di Cagliari
- Cittadella Universitaria
- 09042 Monserrato
- Italy
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11
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Santhi S, Amala S, Basheer SM. Experimental and computational investigation of highly selective dual-channel chemosensor for Al(III) and Zn(II) ions: construction of logic gates. J CHEM SCI 2018. [DOI: 10.1007/s12039-018-1541-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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A new Schiff-base as fluorescent chemosensor for selective detection of Cr3+: An experimental and theoretical study. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.03.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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13
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Farhi A, Firdaus F, Shakir M. Design and application of a tripodal on–off type chemosensor for discriminative and selective detection of Fe2+ ions. NEW J CHEM 2018. [DOI: 10.1039/c8nj00214b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A simple and cost effective tris 2(amino ethyl) amine based chemosensor is synthesized via a single-step procedure.
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Affiliation(s)
- Atika Farhi
- Division of Inorganic Chemistry
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Farha Firdaus
- Chemistry Section
- Women's College
- Aligarh Muslim University
- Aligarh 202002
- India
| | - Mohammad Shakir
- Division of Inorganic Chemistry
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202002
- India
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14
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Affiliation(s)
- Karl J. Wallace
- The Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Ashley D. G. Johnson
- The Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - W. Scott Jones
- The Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, USA
| | - Erendra Manandhar
- The Department of Chemistry and Biochemistry, The University of Southern Mississippi, Hattiesburg, MS, USA
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15
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Pyrene-Phosphonate Conjugate: Aggregation-Induced Enhanced Emission, and Selective Fe 3+ Ions Sensing Properties. Molecules 2017; 22:molecules22091417. [PMID: 28850084 PMCID: PMC6151600 DOI: 10.3390/molecules22091417] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/17/2017] [Accepted: 08/21/2017] [Indexed: 01/03/2023] Open
Abstract
A new pyrene-phosphonate colorimetric receptor 1 has been designed and synthesized in a one-step process via amide bond formation between pyrene butyric acid chloride and phosphonate-appended aniline. The pyrene-phosphonate receptor 1 showed aggregation-induced enhanced emission (AIEE) properties in water/acetonitrile (ACN) solutions. Dynamic light scattering (DLS) characterization revealed that the aggregates of receptor 1 at 80% water fraction have an average size of ≈142 nm. Field emission scanning electron microscopy (FE-SEM) analysis confirmed the formation of spherical aggregates upon solvent evaporation. The sensing properties of receptor 1 were investigated by UV-vis, fluorescence emission spectroscopy, and other optical methods. Among the tested metal ions, receptor 1 is capable of recognizing the Fe3+ ion selectively. The changes in spectral measurements were explained on the basis of complex formation. The composition of receptor 1 and Fe3+ ions was determined by using Job's plot and found to be 1:1. The receptor 1-Fe3+ complex showed a reversible UV-vis response in the presence of EDTA.
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16
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Chalmardi GB, Tajbakhsh M, Bekhradnia A, Hosseinzadeh R. A highly sensitive and selective novel fluorescent chemosensor for detection of Cr3+ based on a Schiff base. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Wang Y, Liu Z, Sun J, Liu X, Pei M, Zhang G. A turn-on fluorescence probe for Fe3+ based-on benzimidazo[2,1-α]benz[de]isoquinoline-7-one derivatives. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2016.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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18
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Das S, Adhikary J, Chakraborty P, Chakraborty T, Das D. Macrocyclization of N,N′-propylenebis(3-formyl-5-tert-butylsalicylaldimine): a ratiometric fluorescence chemodosimeter for ZnII. RSC Adv 2016. [DOI: 10.1039/c6ra05478a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Side off compartmental ligandN,N′-propylenebis(3-formyl-5-tert-butylsalicylaldimine) is used as a ratiometric fluorescence chemodosimeter for the selective detection of ZnIIions.
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Affiliation(s)
- Sudhanshu Das
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Jaydeep Adhikary
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
| | - Prateeti Chakraborty
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
- Department of Chemistry
| | | | - Debasis Das
- Department of Chemistry
- University of Calcutta
- Kolkata-700 009
- India
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19
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Gao R, Wang F, Zhu Y, Li G. A luminescent dimer as a turn-off sensor for both nitrite anion and ferric cation. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1082562] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ruimin Gao
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
| | - Feng Wang
- Department of Chemistry, Henan Institute of Education, Zhengzhou, P.R. China
| | - Yongchao Zhu
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
| | - Gang Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, P.R. China
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20
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An Injectable PEG-BSA-Coumarin-GOx Hydrogel for Fluorescence Turn-on Glucose Detection. Appl Biochem Biotechnol 2015; 177:1115-26. [PMID: 26288081 DOI: 10.1007/s12010-015-1800-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/02/2015] [Indexed: 10/23/2022]
Abstract
Diabetes mellitus is a chronic metabolic disorder, requiring vigilant monitoring of blood glucose levels. In this study, an injectable fluorescent enzymatic hydrogel was designed for rapid glucose detection. The leakage-free glucose-responsive hydrogel was constructed by the covalent linkage of a multi-arm poly-(ethylene glycol) (PEG), bovine serum albumin (BSA), glucose oxidase (GOx), and 4-(aminomethyl)-6,7-dimethoxycoumarin (Coumarin-NH2). The GOx serves as glucose-recognition element and the pH-sensitive Coumarin-NH2 as a fluorescence turn-on reporter. The material properties of the fluorescent hydrogel were systematically characterized which show high elasticity with good mechanical strength. Upon the addition of glucose, the as-developed fluorescent hydrogel shows a fast response time, good sensitivity, and good reproducibility at physiological pH and ambient temperature. The glucose-sensing mechanism is based on the oxidation of the glucose by GOx that generates protons to change the local pH. Consequently, protonation of the covalently immobilized and pH-sensitive Coumarin-NH2 turns on the fluorescence of the coumarin. The fluorescence hydrogel developed holds great promise as an injectable, implantable glucose-sensing biomaterials for in vivo continuous glucose monitoring.
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21
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Chen YJ, Yang SC, Tsai CC, Chang KC, Chuang WH, Chu WL, Kovalev V, Chung WS. Anthryl-1,2,4-oxadiazole-substituted calix[4]arenes as highly selective fluorescent chemodosimeters for Fe(3+). Chem Asian J 2015; 10:1025-34. [PMID: 25620418 DOI: 10.1002/asia.201403265] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 01/05/2023]
Abstract
Fluorescent chemosensors 1 and 2, with 1,2,4-oxadiazoles as the binding ligands and anthracene as the fluorophore, were synthesized through sequential 1,3-dipolar cycloaddition reactions of 25,27-dioxyacetonitrilecalix[4]arenes 8 and 11. The fluorescence of 1 was severely quenched by both Fe(3+) and Cu(2+) , whereas that of 2 was selectively quenched only by Fe(3+) . Control compound 4 was also selectively quenched by Fe(3+) , which implied the importance of anthryl-1,2,4-oxadiazole core; furthermore, it was shown to give various oxidation products such as oxanthrone 13, anthraquinone 14, and imidazolyl oxanthrone 15. In addition to product separation and identification, the fluorescent quenching mechanism of these 9-anthryl-1,2,4-oxadiazolyl derivatives by Fe(3+) is also discussed. Furthermore, it should be noted that the oxadiazole-substituted anthracene 4 and calix[4]arene 2 are Fe(3+) -selective fluorescent chemodosimeters without the interference by Cu(2+) .
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Affiliation(s)
- Ying-Jung Chen
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan 30050 (P.R. China)
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22
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Saleem M, Lee KH. Optical sensor: a promising strategy for environmental and biomedical monitoring of ionic species. RSC Adv 2015. [DOI: 10.1039/c5ra11388a] [Citation(s) in RCA: 157] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In this review, we cover the recent developments in fluorogenic and chromogenic sensors for Cu2+, Fe2+/Fe3+, Zn2+and Hg2+.
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Affiliation(s)
- Muhammad Saleem
- Department of Chemistry
- Kongju National University
- Gongju
- Republic of Korea
| | - Ki Hwan Lee
- Department of Chemistry
- Kongju National University
- Gongju
- Republic of Korea
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23
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Wang L, Gagey-Eilstein N, Broussy S, Reille-Seroussi M, Huguenot F, Vidal M, Liu WQ. Design and synthesis of C-terminal modified cyclic peptides as VEGFR1 antagonists. Molecules 2014; 19:15391-407. [PMID: 25264829 PMCID: PMC6270838 DOI: 10.3390/molecules191015391] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/12/2014] [Accepted: 09/17/2014] [Indexed: 01/12/2023] Open
Abstract
Previously designed cyclic peptide antagonist c[YYDEGLEE]-NH2 disrupts the interaction between vascular endothelial growth factor (VEGF) and its receptors (VEGFRs). It represents a promising tool in the fight against cancer and age-related macular degeneration. We described in this paper the optimization of the lead peptide by C-terminal modification. A new strategy for the synthesis of cyclic peptides is developed, improving the cyclisation efficiency. At 100 µM, several new peptides with an aromatic group flexibly linked at C-terminal end showed significantly increased receptor binding affinities in competition ELISA test. The most active peptide carrying a coumarin group may be a useful tool in anti-angiogenic biological studies.
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Affiliation(s)
- Lei Wang
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Nathalie Gagey-Eilstein
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Sylvain Broussy
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Marie Reille-Seroussi
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Florent Huguenot
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Michel Vidal
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
| | - Wang-Qing Liu
- UMR 8638 CNRS, Faculté de Pharmacie de Paris, Université Paris Descartes, Sorbonne Paris Cité, 4 avenue de l'observatoire, Paris 75006, France.
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24
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Ghosh K, Rathi S. A novel probe for selective colorimetric sensing of Fe(ii) and Fe(iii) and specific fluorometric sensing of Fe(iii): DFT calculation and logic gate application. RSC Adv 2014. [DOI: 10.1039/c4ra07731h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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25
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Klare H, Hanft S, Neudörfl JM, Schlörer NE, Griesbeck A, Goldfuss B. Anion Recognition with Hydrogen-Bonding Cyclodiphosphazanes. Chemistry 2014; 20:11847-55. [DOI: 10.1002/chem.201403013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Indexed: 11/10/2022]
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26
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Synthesis of new benzimidazolium salts with tunable emission intensities and their application as fluorescent probes for Fe3+ in pure aqueous media. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.127] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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A ratiometric fluorescent probe for iron(III) and its application for detection of iron(III) in human blood serum. Anal Chim Acta 2014; 812:145-51. [DOI: 10.1016/j.aca.2013.12.024] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 12/09/2013] [Accepted: 12/17/2013] [Indexed: 11/13/2022]
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28
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Fan L, Li TR, Wang BD, Yang ZY, Liu CJ. A colorimetric and turn-on fluorescent chemosensor for Al(III) based on a chromone Schiff-base. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 118:760-4. [PMID: 24140792 DOI: 10.1016/j.saa.2013.09.062] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 09/12/2013] [Accepted: 09/16/2013] [Indexed: 05/12/2023]
Abstract
A simple Schiff-base receptor 7-methoxychromone-3-carbaldehyde-(pyridylformyl) hydrazone (MCNH) was prepared. It exhibits an "off-on-type" mode with high sensitivity in the presence of Al(3+). This compound could be used as Al(3+) probe in ethanol and it features visible light excitation (433 nm) and emission (503 nm) profiles. Upon binding of Al(3+), a significant fluorescence enhancement with a turn-on ratio over 800-fold was triggered. However, other metal ions had no such significant effect on the fluorescence. MCNH can also be used as a colorimetric chemosensor for Al(3+), which is easily observed from colorless to yellow-green by the naked-eye. The detection limit of MCNH for Al(3+) was as low as 1.9×10(-7) M.
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Affiliation(s)
- Long Fan
- College of Chemistry and Chemical Engineering, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, PR China
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29
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An KL, Lee SO, Koh SD, Shin SR, Shin JI, Park SY, Son YA, Park KH, Jun K. A New Anthracene Based Fluorescent Turn-On Sensor for Fe3+. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.1.277] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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30
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Coumarin-based fluorescent probes for dual recognition of copper(II) and iron(III) ions and their application in bio-imaging. SENSORS 2014; 14:1358-71. [PMID: 24419164 PMCID: PMC3926618 DOI: 10.3390/s140101358] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Revised: 12/18/2013] [Accepted: 12/18/2013] [Indexed: 11/16/2022]
Abstract
Two new coumarin-based “turn-off” fluorescent probes, (E)-3-((3,4-dihydroxybenzylidene)amino)-7-hydroxy-2H-chromen-2-one (BS1) and (E)-3-((2,4-dihydroxybenzylidene)amino)-7-hydroxy-2H-chromen-2-one (BS2), were synthesized and their detection of copper(II) and iron(III) ions was studied. Results show that both compounds are highly selective for Cu2+ and Fe3+ ions over other metal ions. However, BS2 is detected directly, while detection of BS1 involves a hydrolysis reaction to regenerate 3-amino-7-hydroxycoumarin (3) and 3,4-dihydroxybenzaldehyde, of which 3 is able to react with copper(II) or iron(III) ions. The interaction between the tested compounds and copper or iron ions is associated with a large fluorescence decrease, showing detection limits of ca. 10−5 M. Preliminary studies employing epifluorescence microscopy demonstrate that Cu2+ and Fe3+ ions can be imaged in human neuroblastoma SH-SY5Y cells treated with the tested probes.
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31
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Yang M, Xu C, Li S, Cheng Z, Zhou J, Yang B. Three selective and sensitive “off–on” probes based on rhodamine for Fe3+ imaging in living cells. RSC Adv 2014. [DOI: 10.1039/c4ra00396a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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32
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Pal S, Chatterjee N, Bharadwaj PK. Selectively sensing first-row transition metal ions through fluorescence enhancement. RSC Adv 2014. [DOI: 10.1039/c4ra02054e] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorescence signaling systems that give enhancement in the presence of first-row transition metal ions are discussed.
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Affiliation(s)
- Sanchari Pal
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
| | - Nabanita Chatterjee
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
| | - Parimal K. Bharadwaj
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016, India
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33
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Xu Y, Zhang D, Li B, Zhang Y, Sun S, Pang Y. A near infrared fluorescent dye for trivalent ions sensing and working as a molecular keypad lock. RSC Adv 2014. [DOI: 10.1039/c3ra47635a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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34
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Li T, Fang R, Wang B, Shao Y, Liu J, Zhang S, Yang Z. A simple coumarin as a turn-on fluorescence sensor for Al(iii) ions. Dalton Trans 2014; 43:2741-3. [DOI: 10.1039/c3dt52414k] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple non-Schiff's base type molecule serves as a selective chemosensor for Al3+ based on the chelation-enhanced fluorescence (CHEF) effect.
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Affiliation(s)
- Tianrong Li
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Ran Fang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Baodui Wang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Yongliang Shao
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Jian Liu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Shouting Zhang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
| | - Zhengyin Yang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- State Key Laboratory of Applied Organic Chemistry
- and College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000, People's Republic of China
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35
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Nagai A, Okabe Y. Charge transfer (CT) mechanochromism: dramatic CT absorption change of crystalline π-conjugated oligomers containing TCNQ upon mechanical grinding. Chem Commun (Camb) 2014; 50:10052-4. [DOI: 10.1039/c4cc03879g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
New π-conjugated oligomers with high crystallinity were prepared from the simple solvothermal reaction of squaric acid and diaminopyrenes.
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Affiliation(s)
- Atsushi Nagai
- Department of Materials Molecular Science
- Institute for Molecular Science
- National Institutes of Natural Sciences
- Okazaki 444-8787, Japan
| | - Yuki Okabe
- Department of Structural Molecular Science
- School of Physical Sciences
- Graduate University for Advanced Studies
- Okazaki 444-8787, Japan
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36
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MLCT based colorimetric probe for iron having D–A–D type architecture of benzo[2,1,3]thiadiazole acceptor and thiophene donor with azomethine pendant arm. INORG CHEM COMMUN 2014. [DOI: 10.1016/j.inoche.2013.10.042] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Venkateswarulu M, Sinha S, Mathew J, Koner RR. Quencher displacement strategy for recognition of trivalent cations through ‘turn-on’ fluorescence signaling of an amino acid hybrid. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.06.091] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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38
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Wang P, Okamura TA, Zhou HP, Sun WY, Tian YP. Metal complex with terpyrindine derivative ligand as highly selective colorimetric sensor for iron(III). CHINESE CHEM LETT 2013. [DOI: 10.1016/j.cclet.2012.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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López C, Vega M, Sanna E, Rotger C, Costa A. Efficient microwave-assisted preparation of squaric acid monoamides in water. RSC Adv 2013. [DOI: 10.1039/c3ra41369a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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40
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Zhao XJ, He RX, Li M, Zhao NW, Li YF, Huang CZ. Formation of blue fluorescent ribbons of 4′,4′′′′-(1,4-phenylene)bis(2,2′:6′,2′′-terpyridine) and highly selective visual detection of iron(ii) cations. RSC Adv 2013. [DOI: 10.1039/c2ra21918b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Hirayama T, Okuda K, Nagasawa H. A highly selective turn-on fluorescent probe for iron(ii) to visualize labile iron in living cells. Chem Sci 2013. [DOI: 10.1039/c2sc21649c] [Citation(s) in RCA: 211] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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42
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Kaur K, Saini R, Kumar A, Luxami V, Kaur N, Singh P, Kumar S. Chemodosimeters: An approach for detection and estimation of biologically and medically relevant metal ions, anions and thiols. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2012.04.013] [Citation(s) in RCA: 316] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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43
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Sahoo SK, Sharma D, Bera RK, Crisponi G, Callan JF. Iron(III) selective molecular and supramolecular fluorescent probes. Chem Soc Rev 2012; 41:7195-227. [PMID: 22885471 DOI: 10.1039/c2cs35152h] [Citation(s) in RCA: 498] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iron is one of the most important elements in metabolic processes, being indispensable for all living systems and therefore it is extensively distributed in environmental and biological materials. However, both its deficiency and excess from the normal permissible limit can induce serious disorders. Therefore, several analytical techniques have been adopted for the detection of iron. Among the various techniques used for its detection, the method based on fluorescent sensors has received considerable interest in recent years because of its ability to provide online monitoring of very low concentrations without any pre-treatment of the sample together with the advantages of spatial and temporal resolution. In this article, efforts have been made to review the various molecular and supramolecular fluorescent sensors that have been developed for the selective detection of iron(III).
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Affiliation(s)
- Suban K Sahoo
- Department of Applied Chemistry, SV National Institute Technology, Surat-395007, Gujrat, India.
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44
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Wei Y, Aydin Z, Zhang Y, Liu Z, Guo M. A turn-on fluorescent sensor for imaging labile Fe(3+) in live neuronal cells at subcellular resolution. Chembiochem 2012; 13:1569-73. [PMID: 22736480 DOI: 10.1002/cbic.201200202] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Indexed: 01/14/2023]
Abstract
An eye for an iron: A highly sensitive, selective and reversible turn-on Fe(3+) sensor for imaging labile Fe(3+) in live cells at subcellular resolution is reported. The sensor can respond to changes in intracellular Fe(3+) levels and was used to image endogenous chelatable Fe(3+) in live human neuroblastoma SH-SY5Y cells, with two Fe(3+) pools being identified in mitochondria and endosomes/ lysosomes for the first time.
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Affiliation(s)
- Yibin Wei
- Department of Chemistry and Biochemistry and UMass Cranberry Health Research Center, University of Massachusetts Dartmouth, 285 Old Westport Road, Dartmouth, MA 02747, USA
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45
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Affiliation(s)
- Yuming Yang
- Department of Chemistry and State Key Laboratory
of Molecular Engineering of Polymers and Institutes of Biomedical
Sciences, Fudan University, Shanghai 200433, P. R. China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics
and Information Displays (KLOEID) and Institute of Advanced Materials
(IAM), Nanjing University of Posts and Telecommunications, Nanjing
210046, P. R. China
| | - Wei Feng
- Department of Chemistry and State Key Laboratory
of Molecular Engineering of Polymers and Institutes of Biomedical
Sciences, Fudan University, Shanghai 200433, P. R. China
| | - Fuyou Li
- Department of Chemistry and State Key Laboratory
of Molecular Engineering of Polymers and Institutes of Biomedical
Sciences, Fudan University, Shanghai 200433, P. R. China
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46
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Sen S, Sarkar S, Chattopadhyay B, Moirangthem A, Basu A, Dhara K, Chattopadhyay P. A ratiometric fluorescent chemosensor for iron: discrimination of Fe2+ and Fe3+ and living cell application. Analyst 2012; 137:3335-42. [PMID: 22673561 DOI: 10.1039/c2an35258c] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A newly designed probe, 6-thiophen-2-yl-5,6-dihydrobenzo[4,5]imidazo-[1,2-c] quinazoline (HL(1)) behaves as a highly selective ratiometric fluorescent sensor for Fe(2+) at pH 4.0-5.0 and Fe(3+) at pH 6.5-8.0 in acetonitrile-HEPES buffer (1/4) (v/v) medium. A decrease in fluorescence at 412 nm and increase in fluorescence at 472 nm with an isoemissive point at 436 nm with the addition of Fe(2+) salt solution is due to the formation of mononuclear Fe(2+) complex [Fe(II)(HL)(ClO(4))(2)(CH(3)CN)(2)] (1) in acetonitrile-HEPES buffer (100 mM, 1/4, v/v) at pH 4.5 and a decrease in fluorescence at 412 nm and increase in fluorescence at 482 nm with an isoemissive point at 445 nm during titration by Fe(3+) salt due to the formation of binary Fe(3+) complex, [Fe(III)(L)(2)(ClO(4))(H(2)O)] (2) with co-solvent at biological pH 7.4 have been established. Binding constants (K(a)) in the solution state were calculated to be 3.88 × 10(5) M(-1) for Fe(2+) and 0.21 × 10(3) M(-1/2) for Fe(3+) and ratiometric detection limits for Fe(2+) and Fe(3+) were found to be 2.0 μM and 3.5 μM, respectively. The probe is a "naked eye" chemosensor for two states of iron. Theoretical calculations were studied to establish the configurations of probe-iron complexes. The sensor is efficient for detecting Fe(3+)in vitro by developing a good image of the biological organelles.
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Affiliation(s)
- Supriti Sen
- Department of Chemistry, Burdwan University, Golapbag, Burdwan-713104, West Bengal, India
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47
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Aydin Z, Wei Y, Guo M. A highly selective rhodamine based turn-on optical sensor for Fe3+. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.02.025] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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48
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A novel squaraine dye with squaramide as a scaffold and the colorimetric detection of amine. CHINESE CHEM LETT 2012. [DOI: 10.1016/j.cclet.2011.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Formica M, Fusi V, Giorgi L, Micheloni M. New fluorescent chemosensors for metal ions in solution. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.09.010] [Citation(s) in RCA: 539] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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Chereddy NR, Thennarasu S, Mandal AB. Incorporation of triazole into a quinoline-rhodamine conjugate imparts iron(iii) selective complexation permitting detection at nanomolar levels. Dalton Trans 2012; 41:11753-9. [DOI: 10.1039/c2dt31316b] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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