1
|
Ucar H, Wagenknecht HA. Aggregation-induced emission by sequence-selective assembly of cyanolytated distyrylbenzene in supramolecular DNA architectures. Chem Commun (Camb) 2022; 58:6437-6440. [DOI: 10.1039/d2cc01161a] [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
The cyanolated distyrylbenzene conjugated to 2’-deoxyuridine is a new building block for supramolecular DNA architectures combining aggregation-induced emission and sequence-selective binding. A high number of binding sites at the DNA...
Collapse
|
2
|
Ucar H, Wagenknecht HA. DNA-templated control of chirality and efficient energy transport in supramolecular DNA architectures with aggregation-induced emission. Chem Sci 2021; 12:10048-10053. [PMID: 34377398 PMCID: PMC8317660 DOI: 10.1039/d1sc02351a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/19/2021] [Indexed: 01/15/2023] Open
Abstract
Two conjugates of tetraphenylethylene with d-2′-deoxyuridine (1d) and l-2′-deoxyuridine (1l) were synthesized to construct new supramolecular DNA-architectures by self-assembly. The non-templated assemblies of 1d and 1l show strong aggregation-induced emission and their chirality is exclusively controlled by the configuration of their sugar part. In contrast, the chirality of the DNA-templated assemblies is governed by the configuration of the DNA, and there is no configuration-selective binding of 1d to d-A20 and 1l to l-A20. The quantum yield of the assembly of 1d along the single-stranded DNA A20 is 0.40; approximately every second available binding site on the DNA template is occupied by 1d. The strong aggregation-induced emission of these DNA architectures can be efficiently quenched and the excitation energy can be transported to Atto dyes at the 5′-terminus. A multistep energy transport “hopping” precedes the final energy transfer to the terminal acceptor. The building block 1d promotes this energy transport as stepping stones. This was elucidated by reference DNA double strands in which 1d was covalently incorporated at two distinct sites in the sequences, one near the Atto dye, and one farther away. This new type of completely self-assembled supramolecular DNA architecture is hierarchically ordered and the DNA template controls not only the binding but also the energy transport properties. The high intensity of the aggregation-induced emission and the excellent energy transport properties make these DNA-based materials promising candidates for optoelectronic applications. DNA architectures with tetraphenylethylene are assembled in a non-covalent way. The strong aggregation-induced emission of the chromophores is quenched and the energy is transported to Atto dyes by a multistep energy “hopping”.![]()
Collapse
Affiliation(s)
- Hülya Ucar
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe German
| | - Hans-Achim Wagenknecht
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe German
| |
Collapse
|
3
|
Müller S, Manger F, Graf von Reventlow L, Colsmann A, Wagenknecht HA. Molecular Chromophore-DNA Architectures With Fullerenes: Optical Properties and Solar Cells. Front Chem 2021; 9:645006. [PMID: 33708761 PMCID: PMC7941155 DOI: 10.3389/fchem.2021.645006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/01/2021] [Indexed: 01/06/2023] Open
Abstract
Supramolecular chemistry allows the construction of complex molecular architectures and the design of collective photophysical properties. DNA is an attractive template to build such supramolecular architectures due to its helical structure, the defined distances between the bases and the canonical base pairing that results in precise control of the chromophore position. The tailored properties of DNA-templated supramolecules eventually allow their implementation into optoelectronic applications. For the generation of free charge carriers from photo-generated excitons, fullerenes can be utilized. We synthesized two fullerene derivates, one of which binds by electrostatic interactions to single-stranded DNA, while the other contains two 2'-deoxyuridine moieties and assembles specifically along oligo-2'-deoxyadenosines (dA20) as DNA template. The DNA-directed assembly of both fullerenes in aqueous solution was investigated by UV/Vis absorbance and circular dichroism (CD) spectroscopy. The specific interactions with DNA make fullerenes with the 2'-deoxyuridine moieties a significantly better component for supramolecular DNA architectures. We studied the fluorescence quenching of both fullerenes with a DNA chromophore assembly. To investigate one of the key properties for optoelectronic applications, that is the supramolecular structure of the DNA-based assemblies in the solid phase, we characterized the CD of supramolecular chromophore-DNA architectures in thin films. Remarkably, the helical chirality of the chromophore assemblies that is induced by the DNA template is conserved even in the solid state. Upon implementation into organic solar cells, the external quantum efficiency measurements showed charge carrier generation on all three chromophore components of the DNA assemblies. The fullerenes with the 2'-deoxyuridine moieties enhance the quantum efficiency of the conversion process significantly, demonstrating the potential of DNA as structural element for ordering chromophores into functional π-systems, which may be employed in future organic solar cells.
Collapse
Affiliation(s)
- Sara Müller
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Felix Manger
- Material Research Center for Energy Systems, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Lorenz Graf von Reventlow
- Material Research Center for Energy Systems, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Alexander Colsmann
- Material Research Center for Energy Systems, Karlsruhe Institute of Technology, Karlsruhe, Germany
- Light Technology Institute, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | | |
Collapse
|
4
|
Surin M, Ulrich S. From Interaction to Function in DNA-Templated Supramolecular Self-Assemblies. ChemistryOpen 2020; 9:480-498. [PMID: 32328404 PMCID: PMC7175023 DOI: 10.1002/open.202000013] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/24/2020] [Indexed: 12/13/2022] Open
Abstract
DNA-templated self-assembly represents a rich and growing subset of supramolecular chemistry where functional self-assemblies are programmed in a versatile manner using nucleic acids as readily-available and readily-tunable templates. In this review, we summarize the different DNA recognition modes and the basic supramolecular interactions at play in this context. We discuss the recent results that report the DNA-templated self-assembly of small molecules into complex yet precise nanoarrays, going from 1D to 3D architectures. Finally, we show their emerging functions as photonic/electronic nanowires, sensors, gene delivery vectors, and supramolecular catalysts, and their growing applications in a wide range of area from materials to biological sciences.
Collapse
Affiliation(s)
- Mathieu Surin
- Laboratory for Chemistry of Novel MaterialsCenter of Innovation and Research in Materials and Polymers (CIRMAP)University of Mons-UMONS7000MonsBelgium
| | | |
Collapse
|
5
|
Kulyk O, Rocard L, Maggini L, Bonifazi D. Synthetic strategies tailoring colours in multichromophoric organic nanostructures. Chem Soc Rev 2020; 49:8400-8424. [PMID: 33107504 DOI: 10.1039/c9cs00555b] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Mimicking nature to develop light-harvesting materials is a timely challenge. This tutorial review examines the chemical strategies to engineer and customise innovative multi-coloured architectures with specific light-absorbing and emitting properties.
Collapse
Affiliation(s)
- Olesia Kulyk
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| | - Lou Rocard
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| | - Laura Maggini
- Institute of Organic Chemistry
- Faculty of Chemistry, University of Vienna, Währinger Strasse 38
- Vienna
- Austria
| | - Davide Bonifazi
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| |
Collapse
|
6
|
Skiba J, Kowalczyk A, Fik MA, Gapińska M, Trzybiński D, Woźniak K, Vrček V, Czerwieniec R, Kowalski K. Luminescent pyrenyl-GNA nucleosides: synthesis, photophysics and confocal microscopy studies in cancer HeLa cells. Photochem Photobiol Sci 2019; 18:2449-2460. [PMID: 31407765 DOI: 10.1039/c9pp00271e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Glycol nucleic acids (GNA) are synthetic genetic-like polymers with an acyclic three-carbon propylene glycol phosphodiester backbone. Here, synthesis, luminescence properties, circular dichroism (CD) spectra, and confocal microscopy speciation studies of (R,S) and (S,R) pyrenyl-GNA (pyr-GNA) nucleosides are reported in HeLa cells. Enantiomerically pure nucleosides were obtained by a Sharpless asymmetric dihydroxylation reaction followed by semi-preparative high-performance liquid chromatography (HPLC) separation using Amylose-2 as the chiral stationary phase. The enantiomeric relationship between stereoisomers was confirmed by CD spectra, and the absolute configurations were assigned based on experimental and theoretical CD spectra comparisons. The pyr-GNA nucleosides were not cytotoxic against human cervical (HeLa) cancer cells and thus were utilized as luminescent probes in the imaging of these cells with confocal microscopy. Cellular staining patterns were identical for both enantiomers in HeLa cells. Compounds showed no photocytotoxic effect and were localized in the lipid membranes of the mitochondria, in cellular vesicles and in other lipid cellular compartments. The overall distribution of the pyrene and pyrenyl-GNA nucleosides inside the living HeLa cells differed, since the former compound gives a more granular staining pattern and the latter a more diffuse one.
Collapse
Affiliation(s)
- Joanna Skiba
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland.
| | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Fritz Y, Wagenknecht HA. Influences of Linker and Nucleoside for the Helical Self-Assembly of Perylene Along DNA Templates. Front Chem 2019; 7:659. [PMID: 31696102 PMCID: PMC6817502 DOI: 10.3389/fchem.2019.00659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 09/17/2019] [Indexed: 12/30/2022] Open
Abstract
Six different conjugates of perylene with 2'-deoxyuridine and with 2-amino-2'-deoxyadenosine were synthesized and applied for DNA-templated assembly in aqueous buffer solutions. They differ by the linkers ethynylene, phenylene, and phenylene-ethynylene between nucleoside and chromophore. The nucleosides were investigated as monomers in CHCl3 and dimethyl sulfoxide by optical spectroscopy. The properties of the four phenylene-linked conjugates are similar to that of perylene as reference because these linkers separate both aromatic parts. The ethynylene linker electronically couples the chromophore with the respective nucleoside and thus red shifts the absorbance. The DNA-templated assembly properties were elucidated by mixing the templates in aqueous buffer with the perylene-nucleoside conjugates from a dimethyl sulfoxide stock solution. Specific binding of the nucleosides was probed by comparing the results with dA20 and T20 as single-stranded DNA templates. Our studies reveal the structural parameters that are important for the DNA-templated assembly of perylenes. First, perylene-2'-deoxyuridine conjugates do not form DNA-templated helical assemblies, regardless of the choice of linker. Second, the ethynylene linker is crucial for successful DNA-templated chromophore assemblies of perylene-2-amino-2'-deoxyadenosine conjugates. Third, in contrast, the phenylene linker inhibits self-assembly along single-stranded DNA templates. In conclusion, the 2-amino-2'-deoxyadenosin in combination with the ethynylene linker provides the best structural feature for specific and helical DNA-templated assembly of perylenes. This result is important for the design of future DNA-based supramolecular architectures with chromophores, in particular DNA-based light-harvesting systems and DNA systems for emitting or sensing circularly polarized luminescence.
Collapse
Affiliation(s)
- Yannic Fritz
- Karlsruhe Institute of Technology, Institute of Organic Chemistry, Karlsruhe, Germany
| | | |
Collapse
|
8
|
Kirchner E, Bialas D, Würthner F. Bis(merocyanine) Hetero-Folda-Dimers: Evaluation of Exciton Coupling between Different Types of π-Stacked Chromphores. Chemistry 2019; 25:11294-11301. [PMID: 31257652 DOI: 10.1002/chem.201901757] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Indexed: 12/31/2022]
Abstract
Exciton coupling between different types of chromophores has been rarely investigated. Herein, a systematic study on the exciton coupling between merocyanine chromophores of different conjugation length with varying excited state energies is presented. In this work well-defined hetero-dimer stacks were obtained upon folding of bis(merocyanine) dyes in nonpolar solvents. They show distinctly different absorption properties in comparison with the spectra of the single chromophores, revealing a significant coupling between the different chromophores. The simulated absorption spectra obtained from time-dependent density functional theory (TD-DFT) calculations are in good agreement with the experimental spectra. Our theoretical analysis based on an extension of Kasha's exciton theory discloses strong coupling between the dyes' transition dipole moments despite of an excited-state energy difference of 0.60 eV between the chromophores.
Collapse
Affiliation(s)
- Eva Kirchner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - David Bialas
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Center for Nanosystems Chemistry, Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Center for Nanosystems Chemistry, Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| |
Collapse
|
9
|
Khrenova MG, Nemukhin AV, Tsirelson VG. Origin of the π-stacking induced shifts in absorption spectral bands of the green fluorescent protein chromophore. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2019.02.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
10
|
Hofsäβ R, Ensslen P, Wagenknecht HA. Control of helical chirality in supramolecular chromophore-DNA architectures. Chem Commun (Camb) 2019; 55:1330-1333. [PMID: 30638231 DOI: 10.1039/c8cc08887j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Four different d- and l-configured chromophore-2'-deoxyuridine conjugates were applied to elucidate the helical chirality of their non-covalent assemblies along the d- and l-configured DNA templates by optical spectroscopy. There is no configuration-selective recognition between these nucleosides and the DNA templates. The helicity of the DNA assemblies is either controlled by the configuration of the DNA template or by the nucleoside configuration.
Collapse
Affiliation(s)
- Robert Hofsäβ
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany.
| | | | | |
Collapse
|
11
|
Seeley JP, Cotlet M, Eagleton AM, Higashiya S, Welch JT. Resonance Energy Transfer in a Genetically Engineered Polypeptide Results in Unanticipated Fluorescence Intensity. Chemistry 2019; 25:961-965. [PMID: 30414202 DOI: 10.1002/chem.201804470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 11/08/2018] [Indexed: 11/11/2022]
Abstract
The fluorescence intensity of a C-terminal acceptor chromophore, N-(7-dimethylamino-4-methyl coumarin (DACM), increased proportionally with 280 nm irradiation of an increasing number of donor tryptophan residues located on a β-sheet forming polypeptide. The fluorescence intensity of the acceptor chromophore increased even as the length of the β-sheet edge approached 256 Å, well beyond the Förster radius for the tryptophan-acceptor chromophore pair. The folding of the peptides under investigation was verified by circular dichroism (CD) and deep UV resonance Raman experiments. Control experiments showed that the enhancement of DACM fluorescence occurred concomitantly with peptide folding. In other control experiments, the DACM fluorescence intensity of the solutions of tryptophan and DACM did not show any enhancement of DACM fluorescence with increasing tryptophan concentrations. Formation of fibrillar aggregates of the substrate peptides prepared for the fluorescence studies was undetectable by thioflavin T (ThT) fluorescence.
Collapse
Affiliation(s)
- Jason P Seeley
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - Mircea Cotlet
- Center for Functional Nanomaterials, Brookhaven National Laboratory, 735 Brookhaven Ave., Upton, NY, 11973, USA
| | - Aileen M Eagleton
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - Seiichiro Higashiya
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| | - John T Welch
- Department of Chemistry, University at Albany, SUNY, 1400 Washington Ave., Albany, NY, 12222, USA
| |
Collapse
|
12
|
Hofsäß R, Sinn S, Biedermann F, Wagenknecht HA. Programmable and Sequence-Selective Supramolecular Assembly of Two Different Chromophores along DNA Templates. Chemistry 2018; 24:16257-16261. [DOI: 10.1002/chem.201804314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Robert Hofsäß
- Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stephan Sinn
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Frank Biedermann
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Hans-Achim Wagenknecht
- Institute of Organic Chemistry; Karlsruhe Institute of Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| |
Collapse
|
13
|
Ishutkina MV, Berry AR, Hussain R, Khelevina OG, Siligardi G, Stulz E. Self-Assembled Porphyrazine Nucleosides on DNA Templates: Highly Fluorescent Chromophore Arrays and Sizing Forensic Tandem Repeat Sequences. European J Org Chem 2018; 2018:5054-5059. [PMID: 30333712 PMCID: PMC6174987 DOI: 10.1002/ejoc.201800683] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Indexed: 12/15/2022]
Abstract
The formation of chromophore arrays using a DNA templating approach leads to the creation of supramolecular assemblies, where the optical properties of the overall system can be fine-tuned to a large extent. In particular, porphyrin derivatives have been shown to be versatile building blocks; mostly covalent chemistry was used for embedding the units into DNA strands. Self-assembly of porphyrin modified nucleosides, on the other hand, has not been investigated as a simplified approach. We report on the synthesis of a magnesium(II) tetraaza porphine (MgTAP) coupled to deoxyuridine, and array formation on DNA templates which contain well-defined oligo(dA) segments showing strong fluorescence enhancement which is significantly larger than that with a Zn-porphyrin. The use of the deep-eutectic solvent glycholine is essential for successful assembly formation. The system allows for sizing of short tandem repeat markers with multiple adenosines, thus the concept could be adaptable to in vitro forensic DNA profiling with a suitable set of different chromophores on all nucleosides.
Collapse
Affiliation(s)
- Mariia V. Ishutkina
- Department of Organic ChemistryIvanovo State University of Chemistry and TechnologySheremetev Av. 7RF‐153000IvanovoRussia
| | - Alice R. Berry
- School of Chemistry & Institute for Life SciencesUniversity of SouthamptonHighfieldSO17 1BJSouthamptonUK
| | - Rohanah Hussain
- Diamond Light SourceHarwell Science and Innovation CampusDidcotOX11 0DEOxfordshireUK
| | - Olga G. Khelevina
- Department of Organic ChemistryIvanovo State University of Chemistry and TechnologySheremetev Av. 7RF‐153000IvanovoRussia
| | - Giuliano Siligardi
- Diamond Light SourceHarwell Science and Innovation CampusDidcotOX11 0DEOxfordshireUK
| | - Eugen Stulz
- School of Chemistry & Institute for Life SciencesUniversity of SouthamptonHighfieldSO17 1BJSouthamptonUK
| |
Collapse
|
14
|
Jabłoński A, Fritz Y, Wagenknecht HA, Czerwieniec R, Bernaś T, Trzybiński D, Woźniak K, Kowalski K. Pyrene-nucleobase conjugates: synthesis, oligonucleotide binding and confocal bioimaging studies. Beilstein J Org Chem 2017; 13:2521-2534. [PMID: 29259662 PMCID: PMC5727867 DOI: 10.3762/bjoc.13.249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 11/02/2017] [Indexed: 12/20/2022] Open
Abstract
Fluorescent pyrene–linker–nucleobase (nucleobase = thymine, adenine) conjugates with carbonyl and hydroxy functionalities in the linker were synthesized and characterized. X-ray single-crystal structure analysis performed for the pyrene–C(O)CH2CH2–thymine (2) conjugate reveals dimers of molecules 2 stabilized by hydrogen bonds between the thymine moieties. The photochemical characterization showed structure-dependent fluorescence properties of the investigated compounds. The conjugates bearing a carbonyl function represent weak emitters as compared to compounds with a hydroxy function in the linker. The self-assembly properties of pyrene nucleobases were investigated in respect to their binding to single and double strand oligonucleotides in water and in buffer solution. In respect to the complementary oligothymidine T10 template in water, compounds 3 and 5 both show a self-assembling behavior according to canonical base–base pairing. However, in buffer solution, derivative 5 was much more effective than 3 in binding to the T10 template. Furthermore the adenine derivative 5 binds to the double-stranded (dA)10–T10 template with a self-assembly ratio of 112%. Such a high value of a self-assembly ratio can be rationalized by a triple-helix-like binding, intercalation, or a mixture of both. Remarkably, compound 5 also shows dual staining pattern in living HeLa cells. Confocal microscopy confirmed that 5 predominantly stains mitochondria but it also accumulates in the nucleoli of the cells.
Collapse
Affiliation(s)
- Artur Jabłoński
- Faculty of Chemistry, Department of Organic Chemistry, University of Łódź, Tamka 12, PL-91403 Łódź, Poland
| | - Yannic Fritz
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Hans-Achim Wagenknecht
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Rafał Czerwieniec
- Universität Regensburg, Institut für Physikalische und Theoretische Chemie, Universitätsstraße 31, D-93040 Regensburg, Germany
| | - Tytus Bernaś
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, ul. Pasteura 3, 02-093 Warsaw, Poland
| | - Damian Trzybiński
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki and Wigury 101, 02-089 Warszawa, Poland
| | - Krzysztof Woźniak
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki and Wigury 101, 02-089 Warszawa, Poland
| | - Konrad Kowalski
- Faculty of Chemistry, Department of Organic Chemistry, University of Łódź, Tamka 12, PL-91403 Łódź, Poland
| |
Collapse
|
15
|
Chiral multichromophoric supramolecular nanostructures assembled by single stranded DNA and RNA templates. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.08.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
16
|
Structural and quantum chemical analysis of exciton coupling in homo- and heteroaggregate stacks of merocyanines. Nat Commun 2016; 7:12949. [PMID: 27680284 PMCID: PMC5056423 DOI: 10.1038/ncomms12949] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/18/2016] [Indexed: 12/23/2022] Open
Abstract
Exciton coupling is of fundamental importance and determines functional properties of organic dyes in (opto-)electronic and photovoltaic devices. Here we show that strong exciton coupling is not limited to the situation of equal chromophores as often assumed. Quadruple dye stacks were obtained from two bis(merocyanine) dyes with same or different chromophores, respectively, which dimerize in less-polar solvents resulting in the respective homo- and heteroaggregates. The structures of the quadruple dye stacks were assigned by NMR techniques and unambiguously confirmed by single-crystal X-ray analysis. The heteroaggregate stack formed from the bis(merocyanine) bearing two different chromophores exhibits remarkably different ultraviolet/vis absorption bands compared with those of the homoaggregate of the bis(merocyanine) comprising two identical chromophores. Quantum chemical analysis based on an extension of Kasha's exciton theory appropriately describes the absorption properties of both types of stacks revealing strong exciton coupling also between different chromophores within the heteroaggregate. Exciton coupling between organic dyes is important for opto-electronic and photovoltaic devices and it is well-known that strong coupling occurs between equal chromophores. Here, Würthner and others show quadruple dye stacks that have strong exciton coupling between different chromophores within a heteroaggregate.
Collapse
|
17
|
Bialas D, Brüning C, Schlosser F, Fimmel B, Thein J, Engel V, Würthner F. Exciton-Vibrational Couplings in Homo- and Heterodimer Stacks of Perylene Bisimide Dyes within Cyclophanes: Studies on Absorption Properties and Theoretical Analysis. Chemistry 2016; 22:15011-15018. [DOI: 10.1002/chem.201603205] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Indexed: 12/15/2022]
Affiliation(s)
- David Bialas
- Universität Würzburg; Institut für Organische Chemie and Center for Nanosystems Chemistry; Am Hubland 97074 Würzburg Germany
| | - Christoph Brüning
- Universität Würzburg; Institut für Physikalische und Theoretische Chemie; Emil-Fischer-Str. 42 97074 Würzburg Germany
| | - Felix Schlosser
- Universität Würzburg; Institut für Organische Chemie and Center for Nanosystems Chemistry; Am Hubland 97074 Würzburg Germany
| | - Benjamin Fimmel
- Universität Würzburg; Institut für Organische Chemie and Center for Nanosystems Chemistry; Am Hubland 97074 Würzburg Germany
| | - Johannes Thein
- Universität Würzburg; Institut für Organische Chemie and Center for Nanosystems Chemistry; Am Hubland 97074 Würzburg Germany
| | - Volker Engel
- Universität Würzburg; Institut für Physikalische und Theoretische Chemie; Emil-Fischer-Str. 42 97074 Würzburg Germany
| | - Frank Würthner
- Universität Würzburg; Institut für Organische Chemie and Center for Nanosystems Chemistry; Am Hubland 97074 Würzburg Germany
| |
Collapse
|
18
|
Substitution of Metallocenes with [2.2]Paracyclophane to Enable Confocal Microscopy Imaging in Living Cells. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
19
|
Kölmel DK, Barandun LJ, Kool ET. Efficient synthesis of fluorescent alkynyl C-nucleosides via Sonogashira coupling for the preparation of DNA-based polyfluorophores. Org Biomol Chem 2016; 14:6407-12. [PMID: 27296353 PMCID: PMC4935563 DOI: 10.1039/c6ob01199c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile and general procedure for the preparation of alkynyl C-nucleosides with varied fluorophores is presented. Sonogashira coupling was used as a key reaction to conjugate the dyes to an easily accessible ethynyl functionalized deoxyribose derivative. The new C-nucleosides were used for the preparation of DNA-based polyfluorophores.
Collapse
Affiliation(s)
- Dominik K Kölmel
- Department of Chemistry, Stanford University, Stanford, California 94305, USA.
| | - Luzi J Barandun
- Department of Chemistry, Stanford University, Stanford, California 94305, USA.
| | - Eric T Kool
- Department of Chemistry, Stanford University, Stanford, California 94305, USA.
| |
Collapse
|
20
|
Bialas D, Kirchner E, Würthner F. Folding-induced exciton coupling in homo- and heterodimers of merocyanine dyes. Chem Commun (Camb) 2016; 52:3777-80. [DOI: 10.1039/c6cc00221h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Folding of a bis(merocyanine) dye with two different chromophores leads to a model system to elucidate electronic interactions in heteroaggregates.
Collapse
Affiliation(s)
- David Bialas
- Universität Würzburg
- Institut für Organische Chemie & Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Eva Kirchner
- Universität Würzburg
- Institut für Organische Chemie & Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| | - Frank Würthner
- Universität Würzburg
- Institut für Organische Chemie & Center for Nanosystems Chemistry
- 97074 Würzburg
- Germany
| |
Collapse
|
21
|
Ensslen P, Gärtner S, Glaser K, Colsmann A, Wagenknecht HA. A DNA-Fullerene Conjugate as a Template for Supramolecular Chromophore Assemblies: Towards DNA-Based Solar Cells. Angew Chem Int Ed Engl 2015; 55:1904-8. [DOI: 10.1002/anie.201509332] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Revised: 11/23/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Philipp Ensslen
- Institut für Organische Chemie; Karlsruher Institut für Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stefan Gärtner
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Germany
| | - Konstantin Glaser
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Germany
| | - Alexander Colsmann
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Germany
| | - Hans-Achim Wagenknecht
- Institut für Organische Chemie; Karlsruher Institut für Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| |
Collapse
|
22
|
Ensslen P, Gärtner S, Glaser K, Colsmann A, Wagenknecht HA. Ein DNA-Fulleren-Konjugat als Templat für supramolekulare Chromophorstapel: Auf dem Weg zu DNA-basierten Solarzellen. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509332] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Philipp Ensslen
- Institut für Organische Chemie; Karlsruher Institut für Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| | - Stefan Gärtner
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Deutschland
| | - Konstantin Glaser
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Deutschland
| | - Alexander Colsmann
- Lichttechnisches Institut; Karlsruher Institut für Technologie (KIT); Engesserstrasse 13 76131 Karlsruhe Deutschland
| | - Hans-Achim Wagenknecht
- Institut für Organische Chemie; Karlsruher Institut für Technology (KIT); Fritz-Haber-Weg 6 76131 Karlsruhe Deutschland
| |
Collapse
|
23
|
Ensslen P, Wagenknecht HA. One-Dimensional Multichromophor Arrays Based on DNA: From Self-Assembly to Light-Harvesting. Acc Chem Res 2015; 48:2724-33. [PMID: 26411920 DOI: 10.1021/acs.accounts.5b00314] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Light-harvesting complexes collect light energy and deliver it by a cascade of energy and electron transfer processes to the reaction center where charge separation leads to storage as chemical energy. The design of artificial light-harvesting assemblies faces enormous challenges because several antenna chromophores need to be kept in close proximity but self-quenching needs to be avoided. Double stranded DNA as a supramolecular scaffold plays a promising role due to its characteristic structural properties. Automated DNA synthesis allows incorporation of artificial chromophore-modified building blocks, and sequence design allows precise control of the distances and orientations between the chromophores. The helical twist between the chromophores, which is induced by the DNA framework, controls energy and electron transfer and thereby reduces the self-quenching that is typically observed in chromophore aggregates. This Account summarizes covalently multichromophore-modified DNA and describes how such multichromophore arrays were achieved by Watson-Crick-specific and DNA-templated self-assembly. The covalent DNA systems were prepared by incorporation of chromophores as DNA base substitutions (either as C-nucleosides or with acyclic linkers as substitutes for the 2'-deoxyribofuranoside) and as DNA base modifications. Studies with DNA base substitutions revealed that distances but more importantly relative orientations of the chromophores govern the energy transfer efficiencies and thereby the light-harvesting properties. With DNA base substitutions, duplex stabilization was faced and could be overcome, for instance, by zipper-like placement of the chromophores in both strands. For both principal structural approaches, DNA-based light-harvesting antenna could be realized. The major disadvantages, however, for covalent multichromophore DNA conjugates are the poor yields of synthesis and the solubility issues for oligonucleotides with more than 5-10 chromophore modifications in a row. A logical alternative approach is to leave out the phosphodiester bridges between the chromophores and let chromophore-nucleoside conjugates self-assemble specifically along single stranded DNA as template. The self-organization of chromophores along the DNA template based on canonical base pairing would be advantageous because sequence selective base pairing could provide a structural basis for programmed complexity within the chromophore assembly. The self-assembly is governed by two interactions. The chromophore-nucleoside conjugates as guest molecules are recognized via hydrogen bonds to the corresponding counter bases in the single stranded DNA template. Moreover, the π-π interactions between the stacked chromophores stabilize these self-assembled constructs with increasing length. Longer DNA templates are more attractive for self-assembled antenna. The helicity in the stack of porphyrins as guest molecules assembled on the DNA template can be switched by environmental changes, such as pH variations. DNA-templated stacks of ethynyl pyrene and nile red exhibit left-handed chirality, which stands in contrast to similar covalent multichromophore-DNA conjugates with enforced right-handed helicity. With ethynyl nile red, it is possible to occupy every available binding site on the templates. Mixed assemblies of ethynyl pyrene and nile red show energy transfer and thereby provide a proof-of-principle that simple light-harvesting antennae can be obtained in a noncovalent and self-assembled fashion. With respect to the next important step, chemical storage of the absorbed light energy, future research has to focus on the coupling of sophisticated DNA-based light-harvesting antenna to reaction centers.
Collapse
Affiliation(s)
- Philipp Ensslen
- Karlsruhe Institute of Technology (KIT), Institute of Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Hans-Achim Wagenknecht
- Karlsruhe Institute of Technology (KIT), Institute of Organic Chemistry, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| |
Collapse
|
24
|
Nakamura M, Tsuto K, Jomura A, Takada T, Yamana K. Donor-Acceptor Heterojunction Configurations Based on DNA-Multichromophore Arrays. Chemistry 2015; 21:11788-92. [DOI: 10.1002/chem.201501955] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2015] [Indexed: 12/22/2022]
|
25
|
Ensslen P, Brandl F, Sezi S, Varghese R, Kutta RJ, Dick B, Wagenknecht HA. DNA-Based Oligochromophores as Light-Harvesting Systems. Chemistry 2015; 21:9349-54. [PMID: 26069203 DOI: 10.1002/chem.201501213] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Indexed: 12/20/2022]
Abstract
The chromophores ethynyl pyrene as blue, ethynyl perylene as green and ethynyl Nile red as red emitter were conjugated to the 5-position of 2'-deoxyuridine via an acetylene bridge. Using phosphoramidite chemistry on solid phase labelled DNA duplexes were prepared that bear single chromophore modifications, and binary and ternary combinations of these chromophore modifications. The steady-state and time-resolved fluorescence spectra of all three chromophores were studied in these modified DNA duplexes. An energy-transfer cascade occurs from ethynyl pyrene over ethynyl perylene to ethynyl Nile red and subsequently an electron-transfer cascade in the opposite direction (from ethynyl Nile red to ethynyl perylene or ethynyl pyrene, but not from ethynyl perylene to ethynyl pyrene). The electron-transfer processes finally provide charge separation. The efficiencies by these energy and electron-transfer processes can be tuned by the distances between the chromophores and the sequences. Most importantly, excitation at any wavelength between 350 and 700 nm finally leads to charge separated states which make these DNA samples promising candidates for light-harvesting systems.
Collapse
Affiliation(s)
- Philipp Ensslen
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe (Germany)
| | - Fabian Brandl
- Institute of Physical and Theoretical Chemistry, University of Regensburg, Universitätsstr. 31, 93053 Regensburg (Germany)
| | - Sabrina Sezi
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe (Germany)
| | - Reji Varghese
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe (Germany)
| | - Roger-Jan Kutta
- Institute of Physical and Theoretical Chemistry, University of Regensburg, Universitätsstr. 31, 93053 Regensburg (Germany)
| | - Bernhard Dick
- Institute of Physical and Theoretical Chemistry, University of Regensburg, Universitätsstr. 31, 93053 Regensburg (Germany)
| | - Hans-Achim Wagenknecht
- Institute of Organic Chemistry, Karlsruhe Institute of Technology (KIT), Fritz-Haber-Weg 6, 76131 Karlsruhe (Germany).
| |
Collapse
|