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Wang L, Nawrocki P, Nielsen LG, Grenier L, Sørensen TJ. A europium(III)-based nanooptode for bicarbonate sensing - a multicomponent approach to sensor materials. Chem Commun (Camb) 2022; 58:9198-9201. [PMID: 35894692 DOI: 10.1039/d2cc02956a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanide luminescence contains detailed chemical information and can be used to report on several chemical analytes. This has been exploited through elaborate synthesis of responsive lanthanide complexes. Here, we report on a less elaborate approach and assemble four different nanooptodes. Europium(III) is used to sense the bicarbonate concentration. The signal from the optode was enhanced 100 times using antenna chromophore and the response was modulated by the addition of lipophilic cations.
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Affiliation(s)
- Lu Wang
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Patrick Nawrocki
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Lea G Nielsen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Laura Grenier
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark.
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2
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Ambiliraj DB, Francis B, MLP R. Lysosome-targeting luminescent lanthanide complexes: From molecular design to bioimaging. Dalton Trans 2022; 51:7748-7762. [DOI: 10.1039/d2dt00128d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lysosomes are essential acidic cytoplasmic membrane-bound organelles in human cells that play a critical role in many cellular events. A comprehensive understanding of lysosome-specific imaging can ultimately help us to...
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3
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Piccinelli F, Nardon C, Bettinelli M, Melchior A, Tolazzi M, Zinna F, Di Bari L. Lanthanide‐Based Complexes Containing a Chiral
trans
‐1,2‐Diaminocyclohexane (DACH) Backbone: Spectroscopic Properties and Potential Applications. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202100143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Fabio Piccinelli
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Chiara Nardon
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Marco Bettinelli
- Luminescent Materials Laboratory DB, University of Verona, and INSTM, UdR Verona Strada Le Grazie 15 37134 Verona Italy
| | - Andrea Melchior
- Dipartimento Politecnico di ingegneria e architettura Laboratorio di Tecnologie Chimiche University of Udine Via Cotonificio 108 33100 Udine Italy
| | - Marilena Tolazzi
- Dipartimento Politecnico di ingegneria e architettura Laboratorio di Tecnologie Chimiche University of Udine Via Cotonificio 108 33100 Udine Italy
| | - Francesco Zinna
- Department of Chemistry and Industrial Chemistry Via Moruzzi 13 56124 Pisa Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry Via Moruzzi 13 56124 Pisa Italy
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4
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De Rosa C, Melchior A, Sanadar M, Tolazzi M, Duerkop A, Piccinelli F. Isoquinoline-based Eu(iii) luminescent probes for citrate sensing in complex matrix. Dalton Trans 2021; 50:4700-4712. [PMID: 33729252 DOI: 10.1039/d1dt00511a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A neutral Eu(iii) complex containing the S,S enantiomer of isoQC3A3- ligand (isoQC3A3- = N-isoquinolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) was synthesized and characterized. The complex was spectroscopically investigated and the results compared with those obtained for the similar bis-anionic ligand bisoQcd2- (bisoQcd2- = N,N'-bis(2-isoquinolinmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate). Both Eu(iii)-complexes show similar binding constants upon titration with the main analytes contained in interstitial extracellular fluid (i.e. hydrogen carbonate, serum albumin and citrate). However, the analyte affinity is accompanied by different enhancements of the Eu(iii) intrinsic quantum yield (QY). Structures and hydration numbers of the complexes are determined by luminescence decay measurements and DFT calculations. The QYs as well as the binding constants of the individual adducts of the complexes with hydrogen carbonate, bovine serum albumin (BSA) and citrate are determined. The study of the Eu(iii) emission upon the systematic variation of one analyte in a complex mixture has been carried out to predict the performance of the luminescent sensor in conditions close to the real extracellular environment. Both Eu(iii) complexes can detect citrate at extracellular concentrations up to 500 μM, even at millimolar concentrations of the other interfering species. In the case of the Eu(bisoQcd)OTf complex, an increase of 23% of the Eu(iii) luminescence intensity at 615 nm upon addition of 0.3 mM of citrate was recorded. This feature makes the latter complex a viable probe for luminescence analysis of citrate in a complex matrix.
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Affiliation(s)
- Chiara De Rosa
- Luminescent Materials Laboratory, DB, Università di Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy.
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5
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Frías JC, Soriano J, Blasco S, García-España E, Rodríguez-Rodríguez A, Esteban-Gómez D, Carniato F, Botta M, Platas-Iglesias C, Albelda MT. Macrocyclic Pyclen-Based Gd 3+ Complex with High Relaxivity and pH Response. Inorg Chem 2020; 59:7306-7317. [PMID: 32379437 DOI: 10.1021/acs.inorgchem.0c00690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We report the synthesis and characterization of the macrocyclic ligand 2,2'-((2-(3,9-bis(carboxymethyl)-3,6,9-triaza-1(2,6)-pyridinacyclodecaphane-6-yl)ethyl)azanediyl)diacetic acid (H4L) and several of its complexes with lanthanide ions. The structure of the free ligand was determined using X-ray diffraction measurements. Two N atoms of the pyclen moiety in the trans position are protonated in the solid state, together with the exocyclic N atom and one of the carboxylate groups of the ligand. The relaxivity of the Gd3+ complex was found to increase from 6.7 mM-1 s-1 at pH 8.6 to 8.5 mM-1 s-1 below pH ≈ 6.0. Luminescence lifetime measurements recorded from H2O and D2O solutions of the Eu3+ complex evidence the presence of a single complex species in solution at low pH (∼5.0) that contains two inner-sphere water molecules. DFT calculations suggest that the coordination environment of the Ln3+ ion is fulfilled by the four N atoms of the pyclen unit, two oxygen atoms of the macrocyclic acetate groups, and an oxygen atom of an exocyclic carboxylate group. The two inner-sphere water molecules complete coordination number nine around the metal ion. At high pH (∼9.3), the lifetime of the excited 5D0 level of Eu3+ displays a biexponential behavior that can be attributed to the presence of two species in solution with hydration numbers of q = 0 and q = 1. The 1H NMR and DOSY spectra recorded from solutions of the Eu3+ and Y3+ complexes reveal a structural change triggered by pH and the formation of small aggregates at high pH values.
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Affiliation(s)
- Juan C Frías
- Departamento de Ciencias Biomédicas, Universidad CEU-Cardenal Herrera, CEU Universities, C/Ramón y Cajal, s/n, 46115 Alfara del Patriarca, Valencia, Spain
| | - José Soriano
- Departamento de Quı́mica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Edificio de Institutos de Paterna, Apdo 22085, 46071 Valencia, Spain
| | - Salvador Blasco
- Departamento de Quı́mica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Edificio de Institutos de Paterna, Apdo 22085, 46071 Valencia, Spain
| | - Enrique García-España
- Departamento de Quı́mica Inorgánica, Instituto de Ciencia Molecular, Universidad de Valencia, Edificio de Institutos de Paterna, Apdo 22085, 46071 Valencia, Spain
| | - Aurora Rodríguez-Rodríguez
- Centro de Investigacións Cientı́ficas Avanzadas (CICA) and Departamento de Quı́mica, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - David Esteban-Gómez
- Centro de Investigacións Cientı́ficas Avanzadas (CICA) and Departamento de Quı́mica, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - Fabio Carniato
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy
| | - Mauro Botta
- Dipartimento di Scienze e Innovazione Tecnologica, Università del Piemonte Orientale "A. Avogadro", Viale T. Michel 11, 15121 Alessandria, Italy
| | - Carlos Platas-Iglesias
- Centro de Investigacións Cientı́ficas Avanzadas (CICA) and Departamento de Quı́mica, Universidade da Coruña, Campus da Zapateira-Rúa da Fraga 10, 15008 A Coruña, Spain
| | - M Teresa Albelda
- Departamento de Quı́mica Inorgánica, Universidad de Valencia, C/Dr. Moliner 50, 46100 Burjasot, Valencia, Spain
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6
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Bridou L, Nielsen LG, Sørensen TJ. Using europium(III) complex of 1,4,7,10-tetraazacyclododecane-1,4,7-triacedic acid Eu.DO3A as a luminescent sensor for bicarbonate. J RARE EARTH 2020. [DOI: 10.1016/j.jre.2019.11.017] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Dansholm CN, Junker AKR, Nielsen LG, Kofod N, Pal R, Sørensen TJ. π-Expanded Thioxanthones - Engineering the Triplet Level of Thioxanthone Sensitizers for Lanthanide-Based Luminescent Probes with Visible Excitation. Chempluschem 2020; 84:1778-1788. [PMID: 31943860 DOI: 10.1002/cplu.201900309] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/12/2019] [Indexed: 12/17/2022]
Abstract
Bright lanthanide based probes for optical bioimaging must rely on the antenna principle, where the lanthanide-centred excited state is formed by a complex sensitization process. Efficient sensitization of lanthanide-centred emission occurs via triplet states centred on the sensitizing chromophore. Here, the triplet state of thioxanthone chromophores is modulated by extending the π-system. Three thioxanthone chromophores-thioxanthone, benzo[c]thioxanthone, and naphtho[2,3-c]thioxanthone were synthesised and characterised. The triplet state energies and lifetimes is found to change as expected, and two dyes are found to be suitable sensitizers for europium(iii) luminescence. Reactive derivatives of thioxanthone and benzo[c]thioxanthone were prepared and coupled to a 1,4,7,10-tetraazacyclododecane-1,4,7-triacetic acid (DO3A) lanthanide binding pocket. The photophysics and the performance in optical bioimaging of the resulting europium(iii) complexes were investigated. It is concluded that while the energetics favour efficient sensitization, the solution structure does not. While it was found that the complexes are too lipophilic to be efficient luminescent probes for optical bioimaging, we successfully demonstrated bioimaging using europium(iii) luminescence following 405 nm excitation.
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Affiliation(s)
- Charlotte Nybro Dansholm
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, København Ø, Denmark
| | - Anne Kathrine R Junker
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, København Ø, Denmark
| | - Lea G Nielsen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, København Ø, Denmark
| | - Nicolaj Kofod
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, København Ø, Denmark
| | - Robert Pal
- Department of Chemistry, Durham University Lower Mountjoy, Stockton Road, Durham DH1 3LE, UK
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100, København Ø, Denmark
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8
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Gupta K, Verma M, Srivastava P, Sivakumar S, Patra AK. A luminescent pH-sensitive lysosome targeting Eu(iii) probe. NEW J CHEM 2020. [DOI: 10.1039/c9nj05561d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pH-responsive, water soluble luminescent Eu(iii) probe is designed to target lysosomes via intrinsic f–f emission from the Eu(iii) centre.
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Affiliation(s)
- Kritika Gupta
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Madhu Verma
- Department of Chemical Engineering and Centre for Environmental Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Priyanka Srivastava
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Sri Sivakumar
- Department of Chemical Engineering and Centre for Environmental Science and Engineering
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
| | - Ashis K. Patra
- Department of Chemistry
- Indian Institute of Technology Kanpur
- Kanpur 208016
- India
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9
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Starck M, Fradgley JD, Di Vita S, Mosely JA, Pal R, Parker D. Targeted Luminescent Europium Peptide Conjugates: Comparative Analysis Using Maleimide and para-Nitropyridyl Linkages for Organelle Staining. Bioconjug Chem 2019; 31:229-240. [DOI: 10.1021/acs.bioconjchem.9b00735] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Matthieu Starck
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Jack D. Fradgley
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Stefania Di Vita
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Jackie A. Mosely
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - Robert Pal
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
| | - David Parker
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, United Kingdom
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10
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Ramakrishnam Raju MV, Wilharm RK, Dresel MJ, McGreal ME, Mansergh JP, Marting ST, Goodpaster JD, Pierre VC. The Stability of the Complex and the Basicity of the Anion Impact the Selectivity and Affinity of Tripodal Gadolinium Complexes for Anions. Inorg Chem 2019; 58:15189-15201. [DOI: 10.1021/acs.inorgchem.9b02133] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - Randall K. Wilharm
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Mark J. Dresel
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Meghan E. McGreal
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jarrett P. Mansergh
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Spenser T. Marting
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Jason D. Goodpaster
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Valérie C. Pierre
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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11
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Mewis RE, Archibald SJ. Side-bridged cyclam transition metal complexes bearing a phenolic ether or a phenolate pendent arm. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Junker AKR, Sørensen TJ. Illuminating the Intermolecular vs. Intramolecular Excited State Energy Transfer Quenching by Europium(III) Ions. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Anne Kathrine R. Junker
- Nano‐Science Center & Department of Chemistry University of Copenhagen Universitetsparken 5 2100 København Ø Denmark
| | - Thomas Just Sørensen
- Nano‐Science Center & Department of Chemistry University of Copenhagen Universitetsparken 5 2100 København Ø Denmark
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13
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Piccinelli F, De Rosa C, Melchior A, Faura G, Tolazzi M, Bettinelli M. Eu(iii) and Tb(iii) complexes of 6-fold coordinating ligands showing high affinity for the hydrogen carbonate ion: a spectroscopic and thermodynamic study. Dalton Trans 2019; 48:1202-1216. [PMID: 30460363 DOI: 10.1039/c8dt03621g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In the present contribution, four classes of Ln(iii) complexes (Ln = Eu and Tb) have been synthesized and characterized in aqueous solution. They differ by charge, Ln(bpcd)+ [bpcd2- = N,N'-bis(2-pyridylmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate] and Ln(bQcd)+ (bQcd2- = N,N'-bis(2-quinolinmethyl)-trans-1,2-diaminocyclohexane N,N'-diacetate) being positively charged and Ln(PyC3A) (PyC3A3- = N-picolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) and Ln(QC3A) (QC3A3- = N-quinolyl-N,N',N'-trans-l,2-cyclohexylenediaminetriacetate) being neutral. Combined DFT, spectrophotometric and potentiometric studies reveal the presence, under physiological conditions (pH 7.4), of a couple of equally and highly stable isomers differing by the stereochemistry of the ligands (trans-N,N and trans-O,O for bpcd2- and bQcd2-; trans-O,O and trans-N,O for PyC3A3- and QC3A3-). Their high log β values (9.97 < log β < 15.68), the presence of an efficient antenna effect and the strong increase of the Ln(iii) luminescence intensity as a function of the hydrogen carbonate concentration in physiological solution, render these complexes as very promising optical probes for a selective detection of HCO3-in cellulo or in extracellular fluid. This particularly applies to the cationic Eu(bpcd)+, Tb(bpcd)+ and Eu(bQcd)+ complexes, which are capable of guesting up to two hydrogen carbonate anions in the inner coordination sphere of the metal ion, so that they show an unprecedented affinity towards HCO3- (log K for the formation of the adduct in the 4.6-5.9 range).
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Affiliation(s)
- Fabio Piccinelli
- Laboratorio Materiali Luminescenti, DB, Università di Verona, and INSTM, UdR Verona, Strada Le Grazie 15, 37134 Verona, Italy.
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14
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Qin QP, Wang ZF, Tan MX, Huang XL, Zou HH, Zou BQ, Shi BB, Zhang SH. Complexes of lanthanides(iii) with mixed 2,2′-bipyridyl and 5,7-dibromo-8-quinolinoline chelating ligands as a new class of promising anti-cancer agents. Metallomics 2019; 11:1005-1015. [DOI: 10.1039/c9mt00037b] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
MeOMBrQ-Ho induced HeLa cell apoptosis was mediated by inhibition of telomerase activity and dysfunction of mitochondria. Remarkably, MeOMBrQ-Ho obviously inhibited HeLa xenograft tumor growth in vivo.
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Affiliation(s)
- Qi-Pin Qin
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Zhen-Feng Wang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Ming-Xiong Tan
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Xiao-Ling Huang
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Hua-Hong Zou
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources
- School of Chemistry and Pharmacy
- Guangxi Normal University
- Guilin 541004
- P. R. China
| | - Bi-Qun Zou
- Department of Chemistry
- Guilin Normal College
- Gulin 541001
- P. R. China
| | - Bei-Bei Shi
- Guangxi Key Lab of Agricultural Resources Chemistry and Biotechnology
- College of Chemistry and Food Science
- Yulin Normal University
- Yulin 537000
- P. R. China
| | - Shu-Hua Zhang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- China
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15
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Sørensen TJ, Faulkner S. Multimetallic Lanthanide Complexes: Using Kinetic Control To Define Complex Multimetallic Arrays. Acc Chem Res 2018; 51:2493-2501. [PMID: 30222311 DOI: 10.1021/acs.accounts.8b00205] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Kinetically inert lanthanide complexes are proving to be highly effective building blocks for the preparation of complex heterometallic architectures, allowing complete control of metal ion domains, which cannot be achieved under thermodynamic control. Kinetic stability may render perceivable labile coordination bonds more durable than several types of covalent interactions. For complexes in clinical use, the significance of kinetic stability cannot be overstated, and this Account treats the topic accordingly. Kinetically inert complexes can be used as building blocks for elaborate synthesis. For instance, it is now possible to prepare heterometallic lanthanide complexes containing two or more different lanthanide ions by linking kinetically robust complexes together. This approach can yield bimetallic (f-f' or d-f) and trimetallic (f-f'-f″) lanthanide complexes. In this Account, we describe our studies exploiting the slow dissociation of lanthanide complexes derived from 1,4,7,10-tetraazadodecane-1,4,7,10-tetraacetic acid (DOTA) related ligands to link complexes together through synthetic manipulation of pendent groups on the ligand skeleton or through coordination of bridging donor groups to a d-block metal center. In the course of this work, we have developed a variety of such methods, ranging from peptide coupling and diazotization to Ugi and click chemistry and have also explored the use of alternative strategies that combine orthogonal protecting group chemistry with sequential complexation of different lanthanide ions or that use self-assembly to deliver well-defined multimetallic systems. These well-defined bimetallic systems also have considerable scope for exploitation. Since the earliest studies, it has been clear that there is potential for application in the burgeoning field of molecular imaging. Heterometallic lanthanide complexes can be used as single-molecule bimodal imaging agents through incorporation of MRI active and luminescent components. Alternatively, conventional luminescence methods can be exploited in conjunction with lanthanide luminescence. In the simplest cases, a single lanthanide can be used to achieve a switchable response in combination with a transition metal complex. Bimetallic f-f' complexes allow the full potential of the approach to be realized in systems in which one lanthanide responds to changes in the concentration of an analyte, while a second lanthanide center can be used to define the concentration of the probe itself. This offers a new solution to the old dichotomy of ratiometric imaging that can potentially be applied widely.
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Affiliation(s)
- Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 København Ø, Denmark
| | - Stephen Faulkner
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, U.K
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16
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Mathieu E, Sipos A, Demeyere E, Phipps D, Sakaveli D, Borbas KE. Lanthanide-based tools for the investigation of cellular environments. Chem Commun (Camb) 2018; 54:10021-10035. [PMID: 30101249 DOI: 10.1039/c8cc05271a] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biological probes constructed from lanthanides can provide a variety of readout signals, such as the luminescence of Eu(iii), Tb(iii), Yb(iii), Sm(iii) and Dy(iii), and the proton relaxation enhancement of Gd(iii) and Eu(ii). For numerous applications the intracellular delivery of the lanthanide probe is essential. Here, we review the methods for the intracellular delivery of non-targeted complexes (i.e. where the overall complex structure enhances cellular uptake), as well as complexes attached to a targeting unit (i.e. to a peptide or a small molecule) that facilitates delivery. The cellular applications of lanthanide-based supramolecules (dendrimers, metal organic frameworks) are covered briefly. Throughout, we emphasize the techniques that can confirm the intracellular localization of the lanthanides and those that enable the determination of the fate of the probes once inside the cell. Finally, we highlight methods that have not yet been applied in the context of lanthanide-based probes, but have been successful in the intracellular delivery of other metal-based probes.
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Affiliation(s)
- Emilie Mathieu
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120, Uppsala, Sweden.
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17
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Arppe‐Tabbara R, Carro‐Temboury MR, Hempel C, Vosch T, Sørensen TJ. Luminescence from Lanthanide(III) Ions Bound to the Glycocalyx of Chinese Hamster Ovary Cells. Chemistry 2018; 24:11885-11889. [DOI: 10.1002/chem.201802799] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 06/25/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Riikka Arppe‐Tabbara
- Nano-Science Center & Department of ChemistryUniversity of Copenhagen Universitetsparken 5 2100 København Ø Denmark
| | - Miguel R. Carro‐Temboury
- Nano-Science Center & Department of ChemistryUniversity of Copenhagen Universitetsparken 5 2100 København Ø Denmark
| | - Casper Hempel
- Department of Micro- and NanotechnologyTechnical University of Denmark Kgs Lyngby Denmark
| | - Tom Vosch
- Nano-Science Center & Department of ChemistryUniversity of Copenhagen Universitetsparken 5 2100 København Ø Denmark
| | - Thomas Just Sørensen
- Nano-Science Center & Department of ChemistryUniversity of Copenhagen Universitetsparken 5 2100 København Ø Denmark
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18
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Ponduri R, Kumar P, Vadali LRAO, Modugu NR. Water‐PEG‐400 Mediated an Efficient One‐Pot Eco‐Friendly Synthesis of Functionalized Isoxazole Substituted Chromeno[2, 3‐
b
]pyridine‐3‐carboxylate Derivatives. ChemistrySelect 2018. [DOI: 10.1002/slct.201801089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rajasekhar Ponduri
- Mylan Laboratories Limited, Bollaram, Jinnaram (Mandal), Medak, (Dist), Hyderabad, Telangana State India
- JNTU−H College of Engineering, CCST, IST, Kukatpally Hyderabad-500085, Telangana State India
| | - Pramod Kumar
- JNTU−H College of Engineering, CCST, IST, Kukatpally Hyderabad-500085, Telangana State India
| | - Lakshmana RAO Vadali
- Mylan Laboratories Limited, Bollaram, Jinnaram (Mandal), Medak, (Dist), Hyderabad, Telangana State India
| | - Nagi Reddy Modugu
- Department of Organic Synthesis and Process Chemistry (CSIR)Indian Institute of Chemical Technology Uppal Road, Tarnaka, Hyderabad 500007, Telangana India
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19
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Ning Y, Tang J, Liu YW, Jing J, Sun Y, Zhang JL. Highly luminescent, biocompatible ytterbium(iii) complexes as near-infrared fluorophores for living cell imaging. Chem Sci 2018; 9:3742-3753. [PMID: 29780506 PMCID: PMC5939605 DOI: 10.1039/c8sc00259b] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/18/2018] [Indexed: 12/27/2022] Open
Abstract
We report three synthetic methods to prepare biocompatible Yb3+ complexes, which displayed high NIR luminescence with quantum yields up to 13% in aqueous media. This renders β-fluorinated Yb3+ porphyrinoids a new class of NIR probes for living cell imaging including time-resolved fluorescence lifetime imaging.
Herein, we report the design and synthesis of biocompatible Yb3+ complexes for near-infrared (NIR) living cell imaging. Upon excitation at either the visible (Soret band) or red region (Q band), these β-fluorinated Yb3+ complexes display high NIR luminescence (quantum yields up to 23% and 13% in dimethyl sulfoxide and water, respectively) and have higher stabilities and prolonged decay lifetimes (up to 249 μs) compared to the β-non-fluorinated counterparts. This renders the β-fluorinated Yb3+ complexes as a new class of biological optical probes in both steady-state imaging and time-resolved fluorescence lifetime imaging (FLIM). NIR confocal fluorescence images showed strong and specific intracellular Yb3+ luminescence signals when the biocompatible Yb3+ complexes were uptaken into the living cells. Importantly, FLIM measurements showed an intracellular lifetime distribution between 100 and 200 μs, allowing an effective discrimination from cell autofluorescence, and afforded high signal-to-noise ratios as firstly demonstrated in the NIR region. These results demonstrated the prospects of NIR lanthanide complexes as biological probes for NIR steady-state fluorescence and time-resolved fluorescence lifetime imaging.
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Affiliation(s)
- Yingying Ning
- Beijing National Laboratory for Molecular Sciences , State Key Laboratory of Rare Earth Materials Chemistry and Applications , College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China .
| | - Juan Tang
- Beijing National Laboratory for Molecular Sciences , State Key Laboratory of Rare Earth Materials Chemistry and Applications , College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China .
| | - Yi-Wei Liu
- Beijing National Laboratory for Molecular Sciences , State Key Laboratory of Rare Earth Materials Chemistry and Applications , College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China .
| | - Jing Jing
- School of Chemistry , Beijing Institute of Technology , Beijing 100081 , P. R. China
| | | | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences , State Key Laboratory of Rare Earth Materials Chemistry and Applications , College of Chemistry and Molecular Engineering , Peking University , Beijing 100871 , P. R. China .
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20
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Gupta K, Patra AK. A Luminescent pH-Responsive Ternary Europium(III) Complex of β-Diketonates and Terpyridine Derivatives as Sensitizing Antennae - Photophysical Aspects, Anion Sensing, and Biological Interactions. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701495] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kritika Gupta
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur Uttar Pradesh India
| | - Ashis K. Patra
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur Uttar Pradesh India
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21
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Arppe R, Kofod N, Junker AKR, Nielsen LG, Dallerba E, Just Sørensen T. Modulation of the Photophysical Properties of 1-Azathioxanthones by Eu3+, Gd3+, Tb3+, and Yb3+Ions in Methanol. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700720] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Riikka Arppe
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
| | - Nicolaj Kofod
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
| | - Anne Kathrine R. Junker
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
| | - Lea G. Nielsen
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
| | - Elena Dallerba
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
| | - Thomas Just Sørensen
- Nano-Science Center & Department of Chemistry; University of Copenhagen; Universitetsparken 5 2100 København Ø Denmark
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22
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Savych I, Ejaz SA, Shah SJA, Iaroshenko VO, Villinger A, Sosnovskikh VY, Iqbal J, Abbasi A, Langer P. Reactions of 3-Acylchromones with Heterocyclic Ketene Aminals: One-Pot Synthesis and Phosphatase Inhibitory Activity of Fused Pyridine Derivatives. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601138] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Iryna Savych
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | - Syeda Abida Ejaz
- Centre for Advanced Drug Research; COMSATS Institute of Information Technology; Abbottabad Pakistan
| | - Syed Jawad Ali Shah
- Centre for Advanced Drug Research; COMSATS Institute of Information Technology; Abbottabad Pakistan
| | - Viktor O. Iaroshenko
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- National Taras Shevchenko University; 62 Volodymyrska Str. 01033 Kyiv Ukraine
| | - Alexander Villinger
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
| | | | - Jamshed Iqbal
- Centre for Advanced Drug Research; COMSATS Institute of Information Technology; Abbottabad Pakistan
| | - Afshin Abbasi
- Department of Chemistry; Faculty of Science; University of Qom; Qom Iran
| | - Peter Langer
- Institut für Chemie; Universität Rostock; Albert-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz Institut für Katalyse; Albert-Einstein-Str. 18059 Rostock Germany
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23
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Stubenrauch JA, Mevissen C, Schulte MF, Bochenek S, Albrecht M, Subramanian PS. Highly specific “sensing” of tryptophan by a luminescent europium(III) complex. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2016. [DOI: 10.1515/znb-2016-0096] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The europium(III) complex 1-Cl3 (S,S-2,2′-(((1,10-phenanthroline-2,9-diyl)bis(methanylylidene))bis(azanylylidene))bis(3-methylbutanamide)europiumtrichloride) undergoes, only in the presence of the amino acid tryptophan, a change of emission at 615 nm. In the presence of few equivalents of tryptophan, emission of the europium complex is enhanced while it disappears upon addition of large amounts. This behavior can be assigned to displacement of the sensitizing phenanthroline ligand of 1-Cl2•Trp in the latter case.
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Affiliation(s)
- Jan A. Stubenrauch
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
| | - Christian Mevissen
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
| | - Marie F. Schulte
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
| | - Steffen Bochenek
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
| | - Markus Albrecht
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany
| | - Palani S. Subramanian
- Central Salt and Marine Chemicals, Research Institute (CSRI), Bhavnagar, 364 002, Gujarat, India
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24
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Chakraborty A, Debnath GH, Ahir M, Bhattacharya S, Upadhyay P, Adhikary A, Mukherjee P. Towards the realization of luminescence from visible emitting trivalent lanthanides (Sm, Eu, Tb, Dy) in polar zinc sulfide nanoparticles: evaluation of in vitro cytotoxicity. RSC Adv 2016. [DOI: 10.1039/c6ra03401b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
This study develops water dispersible trivalent terbium cation incorporated zinc sulfide nanoparticles for potential anti-cancer therapy and cellular imaging.
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Affiliation(s)
- Arijita Chakraborty
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Gouranga H. Debnath
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Manisha Ahir
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Saurav Bhattacharya
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Priyanka Upadhyay
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Arghya Adhikary
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
| | - Prasun Mukherjee
- Centre for Research in Nanoscience and Nanotechnology
- University of Calcutta
- Kolkata-700106
- India
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25
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Routledge JD, Jones MW, Faulkner S, Tropiano M. Kinetically Stable Lanthanide Complexes Displaying Exceptionally High Quantum Yields upon Long-Wavelength Excitation: Synthesis, Photophysical Properties, and Solution Speciation. Inorg Chem 2015; 54:3337-45. [PMID: 25751278 DOI: 10.1021/ic503049m] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
We demonstrate how highly emissive, kinetically stable complexes can be prepared using the macrocyclic scaffold of DO3A bearing coordinating aryl ketones as highly effective sensitizing chromophores. In the europium complexes, high quantum yields (up to 18% in water) can be combined with long-wavelength excitation (370 nm). The behavior in solution upon variation of pH, studied by means of UV-vis absorption, emission, and NMR spectroscopies, reveals that the nature of the chromophore can give rise to pH-dependent behavior as a consequence of deprotonation adjacent to the carbonyl group. Knowledge of the molecular speciation in solution is therefore critical when assessing the luminescence properties of such complexes.
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Affiliation(s)
- Jack D Routledge
- University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Michael W Jones
- University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Stephen Faulkner
- University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
| | - Manuel Tropiano
- University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, United Kingdom
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26
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Ashton TD, Jolliffe KA, Pfeffer FM. Luminescent probes for the bioimaging of small anionic species in vitro and in vivo. Chem Soc Rev 2015; 44:4547-95. [DOI: 10.1039/c4cs00372a] [Citation(s) in RCA: 287] [Impact Index Per Article: 31.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This comprehensive review examines recent developments in the use of fluorescent/luminescent probes for the bioimaging of anionic species. Images in cover art reproduced with permission from ref. 290 and 306.
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Affiliation(s)
- Trent D. Ashton
- Centre for Chemistry and Biotechnology
- School of Life and Environmental Sciences
- Deakin University
- Waurn Ponds
- Australia
| | - Katrina A. Jolliffe
- School of Chemistry
- School of Chemistry (F11)
- The University of Sydney
- Sydney
- Australia
| | - Frederick M. Pfeffer
- Centre for Chemistry and Biotechnology
- School of Life and Environmental Sciences
- Deakin University
- Waurn Ponds
- Australia
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27
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Induced Self-Assembly of Platinum(II) Alkynyl Complexes through Specific Interactions between Citrate and Guanidinium for Proof-of-Principle Detection of Citrate and an Assay of Citrate Lyase. Chemistry 2014; 20:13016-27. [DOI: 10.1002/chem.201402137] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Indexed: 01/26/2023]
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28
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Abstract
Lanthanide bioprobes and bioconjugates are ideal luminescent stains in view of their low propensity to photobleaching, sharp emission lines and long excited state lifetimes permitting time-resolved detection for enhanced sensitivity. We show here how the interplay between physical, chemical and biochemical properties allied to microfluidics engineering leads to self-assembled dinuclear lanthanide luminescent probes illuminating live cells and selectively detecting biomarkers expressed by cancerous human breast cells.
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Affiliation(s)
- Jean-Claude G Bünzli
- Institute of Chemical Sciences and Engineering , École Polytechnique Fédérale de Lausanne , BCH 1402, 1015 Lausanne , Switzerland
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29
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Peterson KL, Dang JV, Weitz EA, Lewandowski C, Pierre VC. Effect of lanthanide complex structure on cell viability and association. Inorg Chem 2014; 53:6013-21. [PMID: 24901440 PMCID: PMC4060611 DOI: 10.1021/ic500282n] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A systematic study of the effect of hydrophobicity and charge on the cell viability and cell association of lanthanide metal complexes is presented. The terbium luminescent probes feature a macrocyclic polyaminocarboxylate ligand (DOTA) in which the hydrophobicity of the antenna and that of the carboxyamide pendant arms are independently varied. Three sensitizing antennas were investigated in terms of their function in vitro: 2-methoxyisophthalamide (IAM(OMe)), 2-hydroxyisophthalamide (IAM), and 6-methylphenanthridine (Phen). Of these complexes, Tb-DOTA-IAM exhibited the highest quantum yield, although the higher cell viability and more facile synthesis of the structurally related Tb-DOTA-IAM(OMe) platform renders it more attractive. Further modification of this latter core structure with carboxyamide arms featuring hydrophobic benzyl, hexyl, and trifluoro groups as well as hydrophilic amino acid based moieties generated a family of complexes that exhibit high cell viability (ED50 > 300 μM) regardless of the lipophilicity or the overall complex charge. Only the hexyl-substituted complex reduced cell viability to 60% in the presence of 100 μM complex. Additionally, cellular association was investigated by ICP-MS and fluorescence microscopy. Surprisingly, the hydrophobic moieties did not increase cell association in comparison to the hydrophilic amino acid derivatives. It is thus postulated that the hydrophilic nature of the 2-methoxyisophthalamide antenna (IAM(OMe)) disfavors the cellular association of these complexes. As such, responsive luminescent probes based on this scaffold would be appropriate for the detection of extracellular species.
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Affiliation(s)
- Katie L Peterson
- Department of Chemistry, University of Minnesota , Minneapolis, Minnesota 55455, United States
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30
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Affiliation(s)
- Marie C. Heffern
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Lauren M. Matosziuk
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
| | - Thomas J. Meade
- Department of Chemistry, Molecular Biosciences, Neurobiology, Biomedical Engineering, and Radiology, Northwestern University, Evanston, Illinois 60208-3113
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31
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Nadella S, Sahoo J, Subramanian PS, Sahu A, Mishra S, Albrecht M. Sensing of phosphates by using luminescent Eu(III) and Tb(III) complexes: application to the microalgal cell Chlorella vulgaris. Chemistry 2014; 20:6047-53. [PMID: 24692292 DOI: 10.1002/chem.201304664] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 02/03/2014] [Indexed: 11/10/2022]
Abstract
Phenanthroline-based chiral ligands L(1) and L(2) as well as the corresponding Eu(III) and Tb(III) complexes were synthesized and characterized. The coordination compounds show red and green emission, which was explored for the sensing of a series of anions such as F(-), Cl(-), Br(-), I(-), NO3(-), NO2(-), HPO4(2-), HSO4(-), CH3COO(-), and HCO3(-). Among the anions, HPO4(2-) exhibited a strong response in the emission property of both europium(III) and terbium(III) complexes. The complexes showed interactions with the nucleoside phosphates adenosine triphosphate (ATP), adenosine diphosphate (ADP), and adenosine monophosphate (AMP). Owing to this recognition, these complexes have been applied as staining agents in the microalgal cell Chlorella vulgaris. The stained microalgal cells were monitored through fluorescence microscopy and scanning electron microscopy. Initially, the complexes bind to the outer cell wall and then enter the cell wall through holes in which they probably bind to phospholipids. This leads to a quenching of the luminescence properties.
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Affiliation(s)
- Sandeep Nadella
- Discipline of Inorganic Materials and Catalysis; Central Salt and Marine Chemicals, Research Institute (CSIR), Bhavnagar, 364 002, Gujarat (India)
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32
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Rajendran M, Yapici E, Miller LW. Lanthanide-based imaging of protein-protein interactions in live cells. Inorg Chem 2014; 53:1839-53. [PMID: 24144069 PMCID: PMC3944735 DOI: 10.1021/ic4018739] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In order to deduce the molecular mechanisms of biological function, it is necessary to monitor changes in the subcellular location, activation, and interaction of proteins within living cells in real time. Förster resonance energy-transfer (FRET)-based biosensors that incorporate genetically encoded, fluorescent proteins permit high spatial resolution imaging of protein-protein interactions or protein conformational dynamics. However, a nonspecific fluorescence background often obscures small FRET signal changes, and intensity-based biosensor measurements require careful interpretation and several control experiments. These problems can be overcome by using lanthanide [Tb(III) or Eu(III)] complexes as donors and green fluorescent protein (GFP) or other conventional fluorophores as acceptors. Essential features of this approach are the long-lifetime (approximately milliseconds) luminescence of Tb(III) complexes and time-gated luminescence microscopy. This allows pulsed excitation, followed by a brief delay, which eliminates nonspecific fluorescence before the detection of Tb(III)-to-GFP emission. The challenges of intracellular delivery, selective protein labeling, and time-gated imaging of lanthanide luminescence are presented, and recent efforts to investigate the cellular uptake of lanthanide probes are reviewed. Data are presented showing that conjugation to arginine-rich, cell-penetrating peptides (CPPs) can be used as a general strategy for the cellular delivery of membrane-impermeable lanthanide complexes. A heterodimer of a luminescent Tb(III) complex, Lumi4, linked to trimethoprim and conjugated to nonaarginine via a reducible disulfide linker rapidly (∼10 min) translocates into the cytoplasm of Maden Darby canine kidney cells from the culture medium. With this reagent, the intracellular interaction between GFP fused to FK506 binding protein 12 (GFP-FKBP12) and the rapamycin binding domain of mTOR fused to Escherichia coli dihydrofolate reductase (FRB-eDHFR) were imaged at high signal-to-noise ratio with fast (1-3 s) image acquisition using a time-gated luminescence microscope. The data reviewed and presented here show that lanthanide biosensors enable fast, sensitive, and technically simple imaging of protein-protein interactions in live cells.
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Affiliation(s)
- Megha Rajendran
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607
| | - Engin Yapici
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607
| | - Lawrence W. Miller
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607
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33
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Roger M, Regueiro-Figueroa M, Ben Azzeddine C, Patinec V, Bonnet CS, Platas-Iglesias C, Tripier R. Lanthanide Complexes with Heteroditopic Ligands as Fluorescent Zinc Sensors. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301426] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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Coogan MP, Fernández-Moreira V. Progress with, and prospects for, metal complexes in cell imaging. Chem Commun (Camb) 2014; 50:384-99. [DOI: 10.1039/c3cc45229h] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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35
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Rivas C, Stasiuk G, Gallo J, Minuzzi F, Rutter GA, Long NJ. Lanthanide(III) complexes of rhodamine-DO3A conjugates as agents for dual-modal imaging. Inorg Chem 2013; 52:14284-93. [PMID: 24304423 PMCID: PMC4024063 DOI: 10.1021/ic402233g] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Indexed: 01/09/2023]
Abstract
Two novel dual-modal MRI/optical probes based on a rhodamine-DO3A conjugate have been prepared. The bis(aqua)gadolinium(III) complex Gd.L1 and mono(aqua)gadolinium(III) complex Gd.L2 behave as dual-modal imaging probes (r1 = 8.5 and 3.8 mM(-1) s(-1) for Gd.L1 and Gd.L2, respectively; λex = 560 nm and λem = 580 nm for both complexes). The rhodamine fragment is pH-sensitive, and upon lowering of the pH, an increase in fluorescence intensity is observed as the spirolactam ring opens to give the highly fluorescent form of the molecule. The ligands are bimodal when coordinated to Tb(III) ions, inducing fluorescence from both the lanthanide center and the rhodamine fluorophore, on two independent time frames. Confocal imaging experiments were carried out to establish the localization of Gd.L2 in HEK293 cells and primary mouse islet cells (∼70% insulin-containing β cells). Colocalization with MitoTracker Green demonstrated Gd.L2's ability to distinguish between tumor and healthy cells, with compartmentalization believed to be in the mitochondria. Gd.L2 was also evaluated as an MRI probe for imaging of tumors in BALB/c nude mice bearing M21 xenografts. A 36.5% decrease in T1 within the tumor was observed 30 min post injection, showing that Gd.L2 is preferentially up taken in the tumor. Gd.L2 is the first small-molecule MR/fluorescent dual-modal imaging agent to display an off-on pH switch upon its preferential uptake within the more acidic microenvironment of tumor cells.
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Affiliation(s)
- Charlotte Rivas
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Graeme
J. Stasiuk
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Juan Gallo
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
| | - Florencia Minuzzi
- Section
of Cell Biology, Division of Diabetes, Endocrinology and Metabolism,
Department of Medicine, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
| | - Guy A. Rutter
- Section
of Cell Biology, Division of Diabetes, Endocrinology and Metabolism,
Department of Medicine, Imperial College
London, South Kensington, London SW7 2AZ, U.K.
| | - Nicholas J. Long
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K.
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Chauvin AS, Thomas F, Song B, Vandevyver CDB, Bünzli JCG. Synthesis and cell localization of self-assembled dinuclear lanthanide bioprobes. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2013; 371:20120295. [PMID: 23776298 DOI: 10.1098/rsta.2012.0295] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Lanthanide bioprobes and bioconjugates are ideal luminescent stains in view of their low propensity to photobleaching, sharp emission lines and long excited state lifetimes permitting time-resolved detection for enhanced sensitivity. In this paper, we expand our previous work which demonstrated that self-assembled dinuclear triple-stranded helicates [Ln2(L(C2X))3] behave as excellent cell and tissue labels in immunocytochemical and immunohistochemical assays. The synthetic strategy of the hexadentate ditopic ligands incorporating dipicolinic acid, benzimidazole units and polyoxyethylene pendants is revisited in order to provide a more straightforward route and to give access to further functionalization of the polyoxyethylene arms by incorporating a terminal function X. Formation of the helicates [Ln2(L(C2X))3] (X=COOH, CH2OH, COEt, NH2, phthalimide) is ascertained by several experimental techniques and their stability tested against diethylenetriaminepentaacetate. Their photophysical properties (quantum yield, lifetime, radiative lifetime and sensitization efficiency) are presented and compared with those of the parent helicates [Ln2(L(C2))3]. Finally, the cellular uptake of five Eu(III) helicates is monitored by time-resolved luminescence microscopy and their localization in HeLa cells established by co-staining experiments.
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Affiliation(s)
- Anne-Sophie Chauvin
- Laboratory of Lanthanide Supramolecular Chemistry, École Polytechnique Fédérale de Lausanne, BCH 1404, 1015 Lausanne, Switzerland
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Butler SJ, McMahon BK, Pal R, Parker D, Walton JW. Bright mono-aqua europium complexes based on triazacyclononane that bind anions reversibly and permeate cells efficiently. Chemistry 2013; 19:9511-7. [PMID: 23744790 DOI: 10.1002/chem.201301273] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Indexed: 01/02/2023]
Abstract
A series of five europium(III) complexes has been prepared from heptadentate N5O2 ligands that possess a brightness of more than 10 mM(-1) cm(-1) in water, following excitation over the range λ=330-355 nm. Binding of several oxy anions has been assessed by emission spectral titrimetric analysis, with the binding of simple carboxylates, lactate and citrate involving a common ligation mode following displacement of the coordinated water. Selectivity for bicarbonate allows the rapid determination of this anion in human serum, with K(d)=37 mM (295 K). The complexes are internalised quickly into mammalian cells and exhibit a mitochondrial localisation at early time points, migrating after a few hours to reveal a predominant lysosomal distribution. Herein, we report the synthesis and complexation behaviour of strongly emissive europium (III) complexes that bind oxy-anions in aqueous media with an affinity and selectivity profile that is distinctively different from previously studied systems.
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Affiliation(s)
- Stephen J Butler
- Department of Chemistry, Durham University, South Road, Durham, DH1 3LE, UK
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Szíjjártó C, Pershagen E, Ilchenko NO, Borbas KE. A versatile long-wavelength-absorbing scaffold for Eu-based responsive probes. Chemistry 2013; 19:3099-109. [PMID: 23307197 DOI: 10.1002/chem.201203957] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Indexed: 12/27/2022]
Abstract
Coumarin-sensitized, long-wavelength-absorbing luminescent Eu(III)-complexes have been synthesized and characterized. The lanthanide binding site consists of a cyclen-based chelating framework that is attached through a short linker to a 7-hydroxycoumarin, a 7-B(OH)(2)-coumarin, a 7-O-(4-pinacolatoboronbenzyl)-coumarin or a 7-O-(4-methoxybenzyl)-coumarin. The syntheses are straightforward, use readily available building blocks, and proceed through a small number of high-yielding steps. The sensitivity of coumarin photophysics to the 7-substituent enables modulation of the antenna-absorption properties, and thus the lanthanide excitation spectrum. Reactions of the boronate-based functionalities (cages) with H(2)O(2) yielded the corresponding 7-hydroxycoumarin species. The same species was produced with peroxynitrite in a ×10(6)-10(7)-fold faster reaction. Both reactions resulted in the emergence of a strong ≈407 nm excitation band, with concomitant decrease of the 366 nm band of the caged probe. In aqueous solution the methoxybenzyl caged Eu-complex was quenched by ONOO(-). We have shown that preliminary screening of simple coumarin-based antennae through UV/Vis absorption spectroscopy is possible as the changes in absorption profile translate with good fidelity to changes in Eu(III)-excitation profile in the fully elaborated complex. Taken together, our results show that the 7-hydroxycoumarin antenna is a viable scaffold for the construction of turn-on and ratiometric luminescent probes.
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Affiliation(s)
- Csongor Szíjjártó
- Department of Chemistry, BMC, Uppsala University, Box 576, 75123 Uppsala, Sweden
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Charbonnière LJ, Faulkner S, Platas-Iglesias C, Regueiro-Figueroa M, Nonat A, Rodríguez-Blas T, de Blas A, Perry WS, Tropiano M. Ln2M complexes (M = Ru, Re) derived from a bismacrocyclic ligand containing a 4,4′-dimethyl-2,2′-bipyridyl bridging unit. Dalton Trans 2013; 42:3667-81. [DOI: 10.1039/c2dt32660d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Butler SJ, Parker D. Anion binding in water at lanthanide centres: from structure and selectivity to signalling and sensing. Chem Soc Rev 2013; 42:1652-66. [DOI: 10.1039/c2cs35144g] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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42
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Divya V, Sankar V, Raghu KG, Reddy MLP. A mitochondria-specific visible-light sensitized europium β-diketonate complex with red emission. Dalton Trans 2013; 42:12317-23. [DOI: 10.1039/c3dt51117k] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Moore JD, Lord RL, Cisneros GA, Allen MJ. Concentration-independent pH detection with a luminescent dimetallic Eu(III)-based probe. J Am Chem Soc 2012; 134:17372-5. [PMID: 23067148 DOI: 10.1021/ja307098z] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A pH-responsive, luminescent, dimetallic Eu(III)-containing complex has been synthesized and exhibits a unique mechanism of response. The luminescence-decay rate of the complex is slow, due to a lack of water molecules coordinated to the Eu(III) ions. However, the luminescence-decay rate decreases with increasing pH over a biologically relevant range of 4-8. Physical characterization and computational analysis suggest that the pH response is due to protonation of a bridging alkoxide at lower pH values. Modulation of the luminescence-decay rate is independent from the concentration of Eu(III), which we expect to be useful in the non-invasive imaging of in vivo pH.
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Affiliation(s)
- Jeremiah D Moore
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA
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Smith DG, Pal R, Parker D. Measuring equilibrium bicarbonate concentrations directly in cellular mitochondria and in human serum using europium/terbium emission intensity ratios. Chemistry 2012; 18:11604-13. [PMID: 22865800 DOI: 10.1002/chem.201201738] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Indexed: 11/12/2022]
Abstract
A series of Eu and Tb complexes of four different chiral ligands incorporating an azaxanthone sensitiser has been evaluated as probes for the bicarbonate anion. Their binding affinities were assessed at ambient pH with bicarbonate, lactate, citrate, phosphate and serum albumin. Binding was signalled by modulation of circularly polarised luminescence and apparent affinity constants were measured by examining changes in emission intensity ratios. Competition experiments show that with these species and ATP present at normal physiological values, bicarbonate can be determined selectively over the concentration range 10 to 35 mM. Bicarbonate levels are also reported by using a mixture of Eu and Tb complexes of a common ligand, examining the ratio of red/green emitted light. These methods have been adapted for the determination of bicarbonate in human serum and used for the assessment of mitochondrial levels of bicarbonate in several different cell types with confocal microscopy.
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Affiliation(s)
- David G Smith
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK
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Tropiano M, Record CJ, Morris E, Rai HS, Allain C, Faulkner S. Synthesis and Spectroscopic Study of d–f Hybrid Lanthanide Complexes Derived from triazolylDO3A. Organometallics 2012. [DOI: 10.1021/om3003569] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Manuel Tropiano
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
| | - Christopher J. Record
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
| | - Eleanor Morris
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
| | - Hardeep S. Rai
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
| | - Clémence Allain
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
| | - Stephen Faulkner
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA
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Hussain A, Gadadhar S, Goswami TK, Karande AA, Chakravarty AR. Photo-induced DNA cleavage activity and remarkable photocytotoxicity of lanthanide(iii) complexes of a polypyridyl ligand. Dalton Trans 2012; 41:885-95. [DOI: 10.1039/c1dt11400j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Smith DG, McMahon BK, Pal R, Parker D. Live cell imaging of lysosomal pH changes with pH responsive ratiometric lanthanide probes. Chem Commun (Camb) 2012; 48:8520-2. [DOI: 10.1039/c2cc34267g] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Kuramochi Y, Nakagawa T, Yokoo T, Yuasa J, Kawai T, Hasegawa Y. Eu(iii) emission band changes caused by peripheral C–H/O hydrogen bonding. Dalton Trans 2012; 41:6634-40. [DOI: 10.1039/c2dt30538k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Carr R, Di Bari L, Lo Piano S, Parker D, Peacock RD, Sanderson JM. A chiral probe for the acute phase proteins alpha-1-acid glycoprotein and alpha-1-antitrypsin based on europium luminescence. Dalton Trans 2012; 41:13154-8. [DOI: 10.1039/c2dt30143a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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