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Fligelman A, Johns G, Guyn C, Petrauskas A, Vadola PA, Griffin GB. Electronic Relaxation Dynamics in 2-Quinolinones with Extended Conjugation. J Phys Chem A 2021; 125:9757-9769. [PMID: 34734719 DOI: 10.1021/acs.jpca.1c04560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The 2-quinolinone family of molecules, also known as carbostyrils, have been proposed as light absorbing donor molecules in energy transfer based sensing schemes and as possible photocatalysts. Both of these applications make use of electronic excited states, but the photophysics of 2-quinolinones have not yet been examined closely. This study applies static and dynamic spectroscopy, with supporting density functional theory calculations, to reveal the electronic relaxation dynamics of a family of five 2-quinolinones with extended conjugated rings. These modifications lead to red-shifted absorbance and emission maxima, relative to unmodified 2-quinolinone. Optical excitation of these molecules with near UV light resulted in transitions with strong π → π* and HOMO → LUMO character. Time-correlated single photon counting measurements yielded fluorescence lifetimes ranging from 849.3 (±0.6) ps to 4.586 (±0.002) ns. Transient absorption spectroscopy revealed relaxation dynamics of the S1 excited state formed by photoexcitation at 350 nm, along with formation of a long-lived signal assigned as excited state absorption by a triplet excited state. Vibrational relaxation in the S1 state was also characterized in some compounds. Overlapping signals of S1 decay and triplet growth in the transient absorption data set could not be fully disentangled. These results demonstrate a highly competitive relaxation scheme following multiple simultaneous pathways, a promising situation for establishing chemical control of electronic relaxation in the 2-quinolinone family.
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Affiliation(s)
- Alana Fligelman
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
| | - Gonto Johns
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
| | - Christina Guyn
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
| | - Alexis Petrauskas
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
| | - Paul A Vadola
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
| | - Graham B Griffin
- Department of Chemistry and Biochemistry, DePaul University, 1110 West Belden Avenue, Chicago Illinois 60614, United States
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2
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Lone MS, Bhat PA, Afzal S, Chat OA, Dar AA. Energy transduction through FRET in self-assembled soft nanostructures based on surfactants/polymers: current scenario and prospects. SOFT MATTER 2021; 17:425-446. [PMID: 33400748 DOI: 10.1039/d0sm01625j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The self-assembled systems of surfactants/polymers, which are capable of supporting energy funneling between fluorophores, have recently gained significant attraction. Surfactant and polymeric micelles form nanoscale structures spanning a radius of 2-10 nm are generally suitable for the transduction of energy among fluorophores. These systems have shown great potential in Förster resonance energy transfer (FRET) due to their unique characteristics of being aqueous based, tendency to remain self-assembled, spontaneous formation, tunable nature, and responsiveness to different external stimuli. This review presents current developments in the field of energy transfer, particularly the multi-step FRET processes in the self-assembled nanostructures of surfactants/polymers. The part one of this review presents a background and brief overview of soft systems and discusses certain aspects of the self-assemblies of surfactants/polymers and their co-solubilization property to bring fluorophores to close proximity to transduce energy. The second part of this review deals with single-step and multi-step FRET in the self-assemblies of surfactants/polymers and links FRET systems with advanced smart technologies including multicolor formation, data encryption, and artificial antenna systems. This review also discusses the diverse examples in the literature to present the emerging applications of FRET. Finally, the prospects regarding further improvement of FRET in self-assembled soft systems are outlined.
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Affiliation(s)
- Mohd Sajid Lone
- Soft Matter Research Group, Department of Chemistry, University of Kashmir, Srinagar-190006, J&K, India.
| | - Parvaiz Ahmad Bhat
- Department of Chemistry, Government Degree College, Pulwama-192301, J&K, India.
| | - Saima Afzal
- Soft Matter Research Group, Department of Chemistry, University of Kashmir, Srinagar-190006, J&K, India.
| | - Oyais Ahmad Chat
- Department of Chemistry, Government Degree College, Pulwama-192301, J&K, India.
| | - Aijaz Ahmad Dar
- Soft Matter Research Group, Department of Chemistry, University of Kashmir, Srinagar-190006, J&K, India.
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Chen B, Su Q, Kong W, Wang Y, Shi P, Wang F. Energy transfer-based biodetection using optical nanomaterials. J Mater Chem B 2018; 6:2924-2944. [DOI: 10.1039/c8tb00614h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
This review focuses on recent progress in the development of FRET probes and the applications of FRET-based sensing systems.
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Affiliation(s)
- Bing Chen
- Department of Materials Science and Engineering
- City University of Hong Kong
- China
- City Universities of Hong Kong Shenzhen Research Institute
- Shenzhen 518057
| | - Qianqian Su
- Institute of Nanochemistry and Nanobiology
- Shanghai University
- Shanghai 200444
- China
| | - Wei Kong
- Department of Materials Science and Engineering
- City University of Hong Kong
- China
- City Universities of Hong Kong Shenzhen Research Institute
- Shenzhen 518057
| | - Yuan Wang
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
- China
| | - Peng Shi
- City Universities of Hong Kong Shenzhen Research Institute
- Shenzhen 518057
- China
- Department of Mechanical and Biomedical Engineering
- City University of Hong Kong
| | - Feng Wang
- Department of Materials Science and Engineering
- City University of Hong Kong
- China
- City Universities of Hong Kong Shenzhen Research Institute
- Shenzhen 518057
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Liu Y, Zhao L, Zhang J, Zhang J, Zhao W, Mao C. NaEuF4/Au@Ag2S nanoparticles-based fluorescence resonant transfer DNA sensor for ultrasensitive detection of DNA energy. Talanta 2016; 161:87-93. [DOI: 10.1016/j.talanta.2016.07.051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Revised: 07/15/2016] [Accepted: 07/23/2016] [Indexed: 11/25/2022]
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Eisold U, Behrends N, Wessig P, Kumke MU. Rigid Rod-Based FRET Probes for Membrane Sensing Applications. J Phys Chem B 2016; 120:9935-43. [PMID: 27559760 DOI: 10.1021/acs.jpcb.6b07285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Oligospirothioketal (OSTK) rods are presented as an adjustable scaffold for optical membrane probes. The OSTK rods are readily incorporated into lipid bilayers due to their hydrophobic backbones. Because of their high length-over-diameter aspect ratio, only a minimal disturbance of the lipid bilayer is caused. OSTK rods show outstanding rigidity and allow defined labeling with fluorescent dyes, yielding full control of the orientation between the dye and OSTK skeleton. This allows the construction of novel Förster resonance energy transfer probes with highly defined relative orientations of the transition dipole moments of the donor and acceptor dyes and makes the class of OSTK probes a powerful, flexible toolbox for optical biosensing applications. Data on steady-state and time-resolved fluorescence experiments investigating the incorporation of coumarin- and [1,3]dioxolo[4,5-f][1,3]benzo-dioxole-labeled OSTKs in large unilamellar vesicles are presented as a show case.
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Affiliation(s)
- Ursula Eisold
- Physical Chemistry and ‡Bioorganic Chemistry, University of Potsdam, Institute of Chemistry , Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Nicole Behrends
- Physical Chemistry and ‡Bioorganic Chemistry, University of Potsdam, Institute of Chemistry , Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Pablo Wessig
- Physical Chemistry and ‡Bioorganic Chemistry, University of Potsdam, Institute of Chemistry , Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
| | - Michael U Kumke
- Physical Chemistry and ‡Bioorganic Chemistry, University of Potsdam, Institute of Chemistry , Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany
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Dandpat SS, Sahu PK, Sarkar M. Studies on the Mechanism of Fluorescence Quenching of CdS quantum dots by 2-Amino-7-Nitrofluorene and 2-(N,N-dimethylamino)-7-Nitrofluorene. ChemistrySelect 2016. [DOI: 10.1002/slct.201600076] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shiba Sundar Dandpat
- School of Chemical Sciences; National Institute of Science Education and Research; Bhimpur-Padanpur, Jatni, Khorda 752050 Odisha India
| | - Prabhat Kumar Sahu
- School of Chemical Sciences; National Institute of Science Education and Research; Bhimpur-Padanpur, Jatni, Khorda 752050 Odisha India
| | - Moloy Sarkar
- School of Chemical Sciences; National Institute of Science Education and Research; Bhimpur-Padanpur, Jatni, Khorda 752050 Odisha India
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Olejko L, Cywiński PJ, Bald I. An ion-controlled four-color fluorescent telomeric switch on DNA origami structures. NANOSCALE 2016; 8:10339-10347. [PMID: 27138897 DOI: 10.1039/c6nr00119j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The folding of single-stranded telomeric DNA into guanine (G) quadruplexes is a conformational change that plays a major role in sensing and drug targeting. The telomeric DNA can be placed on DNA origami nanostructures to make the folding process extremely selective for K(+) ions even in the presence of high Na(+) concentrations. Here, we demonstrate that the K(+)-selective G-quadruplex formation is reversible when using a cryptand to remove K(+) from the G-quadruplex. We present a full characterization of the reversible switching between single-stranded telomeric DNA and G-quadruplex structures using Förster resonance energy transfer (FRET) between the dyes fluorescein (FAM) and cyanine3 (Cy3). When attached to the DNA origami platform, the G-quadruplex switch can be incorporated into more complex photonic networks, which is demonstrated for a three-color and a four-color FRET cascade from FAM over Cy3 and Cy5 to IRDye700 with G-quadruplex-Cy3 acting as a switchable transmitter.
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Affiliation(s)
- L Olejko
- Department of Chemistry, Physical Chemistry, University of Potsdam, Karl-Liebknecht Str. 24-25, 14476 Potsdam, Germany.
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Wallrabe H, Sun Y, Fang X, Periasamy A, Bloom GS. Three-color confocal Förster (or fluorescence) resonance energy transfer microscopy: Quantitative analysis of protein interactions in the nucleation of actin filaments in live cells. Cytometry A 2015; 87:580-8. [PMID: 25755111 PMCID: PMC4452401 DOI: 10.1002/cyto.a.22651] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 01/24/2015] [Accepted: 02/10/2015] [Indexed: 11/07/2022]
Abstract
Experiments using live cell 3-color Förster (or fluorescence) resonance energy transfer (FRET) microscopy and corresponding in vitro biochemical reconstitution of the same proteins were conducted to evaluate actin filament nucleation. A novel application of 3-color FRET data is demonstrated, extending the analysis beyond the customary energy-transfer efficiency (E%) calculations. MDCK cells were transfected for coexpression of Teal-N-WASP/Venus-IQGAP1/mRFP1-Rac1, Teal-N-WASP/Venus-IQGAP1/mRFP1-Cdc42, CFP-Rac1/Venus-IQGAP1/mCherry-actin, or CFP-Cdc42/Venus-IQGAP1/mCherry-actin, and with single-label equivalents for spectral bleedthrough correction. Using confirmed E% as an entry point, fluorescence levels and related ratios were correlated at discrete accumulating levels at cell peripheries. Rising ratios of CFP-Rac1:Venus-IQGAP1 were correlated with lower overall actin fluorescence, whereas the CFP-Cdc42:Venus-IQGAP1 ratio correlated with increased actin fluorescence at low ratios, but was neutral at higher ratios. The new FRET analyses also indicated that rising levels of mRFP1-Cdc42 or mRFP1-Rac1, respectively, promoted or suppressed the association of Teal-N-WASP with Venus-IQGAP1. These 3-color FRET assays further support our in vitro results about the role of IQGAP1, Rac1, and Cdc42 in actin nucleation, and the differential impact of Rac1 and Cdc42 on the association of N-WASP with IQGAP1. In addition, this study emphasizes the power of 3-color FRET as a systems biology strategy for simultaneous evaluation of multiple interacting proteins in individual live cells.
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Affiliation(s)
- Horst Wallrabe
- W. M. Keck Center for Cellular Imaging, University of Virginia, Charlottesville, VA, USA
- Department of Biology, University of Virginia, Charlottesville, VA, USA
| | - Yuansheng Sun
- W. M. Keck Center for Cellular Imaging, University of Virginia, Charlottesville, VA, USA
| | - Xiaolan Fang
- Department of Biology, University of Virginia, Charlottesville, VA, USA
| | - Ammasi Periasamy
- W. M. Keck Center for Cellular Imaging, University of Virginia, Charlottesville, VA, USA
- Department of Biology, University of Virginia, Charlottesville, VA, USA
| | - George S. Bloom
- Department of Biology, University of Virginia, Charlottesville, VA, USA
- Department of Cell Biology, University of Virginia, Charlottesville, VA, USA
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Kelterer AM, Uray G, Fabian WM. Rational design of long-wavelength absorbing and emitting carbostyrils aided by time-dependent density functional calculations. COMPUT THEOR CHEM 2015. [DOI: 10.1016/j.comptc.2014.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Pan Y, Lau KC, Al-Mogren MM, Mahjoub A, Hochlaf M. Theoretical studies of 2-quinolinol: Geometries, vibrational frequencies, isomerization, tautomerism, and excited states. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.08.033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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11
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Gehne S, Sydow K, Dathe M, Kumke MU. Characterization of Cell-Penetrating Lipopeptide Micelles by Spectroscopic Methods. J Phys Chem B 2013; 117:14215-25. [DOI: 10.1021/jp406053g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sören Gehne
- University of Potsdam, Institute of Chemistry (Physical Chemistry), Karl-Liebknecht-Str.
24-25, 14476 Potsdam-Golm, Germany
| | - Karl Sydow
- Leibniz Institute for Molecular Pharmacology (FMP), Robert-Roessle-Str.
10, 13125 Berlin, Germany
| | - Margitta Dathe
- Leibniz Institute for Molecular Pharmacology (FMP), Robert-Roessle-Str.
10, 13125 Berlin, Germany
| | - Michael U. Kumke
- University of Potsdam, Institute of Chemistry (Physical Chemistry), Karl-Liebknecht-Str.
24-25, 14476 Potsdam-Golm, Germany
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12
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Harris MA, Parkes-Loach PS, Springer JW, Jiang J, Martin EC, Qian P, Jiao J, Niedzwiedzki DM, Kirmaier C, Olsen JD, Bocian DF, Holten D, Hunter CN, Lindsey JS, Loach PA. Integration of multiple chromophores with native photosynthetic antennas to enhance solar energy capture and delivery. Chem Sci 2013. [DOI: 10.1039/c3sc51518d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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