1
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Hart SM, Banal JL, Bathe M, Schlau-Cohen GS. Identification of Nonradiative Decay Pathways in Cy3. J Phys Chem Lett 2020; 11:5000-5007. [PMID: 32484350 DOI: 10.1021/acs.jpclett.0c01201] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photoexcited fluorescent markers are extensively used in spectroscopy, imaging, and analysis of biological systems. The performance of fluorescent markers depends on high levels of emission, which are limited by competing nonradiative decay pathways. Small-molecule fluorescent dyes have been increasingly used as markers due to their high and stable emission. Despite their prevalence, the nonradiative decay pathways of these dyes have not been determined. Here, we investigate these pathways for a widely used indocarbocyanine dye, Cy3, using transient grating spectroscopy. We identify a nonradiative decay pathway via a previously unknown dark state formed within ∼1 ps of photoexcitation. Our experiments, in combination with electronic structure calculations, suggest that the generation of the dark state is mediated by picosecond vibrational mode coupling, likely via a conical intersection. We further identify the vibrational modes, and thus structural elements, responsible for the formation and dynamics of the dark state, providing insight into suppressing nonradiative decay pathways in fluorescent markers such as Cy3.
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Affiliation(s)
- Stephanie M Hart
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - James L Banal
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mark Bathe
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Gabriela S Schlau-Cohen
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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2
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Nair LV, Hossain S, Takagi S, Imai Y, Hu G, Wakayama S, Kumar B, Kurashige W, Jiang DE, Negishi Y. Hetero-biicosahedral [Au 24Pd(PPh 3) 10(SC 2H 4Ph) 5Cl 2] + nanocluster: selective synthesis and optical and electrochemical properties. NANOSCALE 2018; 10:18969-18979. [PMID: 30132774 DOI: 10.1039/c8nr04078h] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A recent study implied that a hetero-biicosahedral 25-atom cluster composed of two kinds of icosahedral 13-atom clusters could serve as a molecular rectifier and dipole material. However, no hetero-biicosahedral 25-atom clusters containing three types of ligands, in this case, phosphines, halogens, and thiolates, have been reported. In this study, we selectively synthesized [Au24Pd(PPh3)10(SC2H4Ph)5Cl2]Cl (Au = gold, Pd = palladium, PPh3 = triphenylphosphine, SC2H4Ph = phenylethanethiolate, Cl = chloride), in which one Au was replaced with a Pd. The single-crystal X-ray structural analysis demonstrated that [Au24Pd(PPh3)10(SC2H4Ph)5Cl2]Cl was a hetero-biicosahedral 25-atom cluster in which the central atom of one icosahedral Au13 core was replaced by a Pd atom. Optical absorption spectroscopy suggested that the electronic structure of each individual icosahedral 13-atom core in [Au24Pd(PPh3)10(SC2H4Ph)5Cl2]+ was reasonably well maintained, similar to the case of [Au25(PPh3)10(SC2H4Ph)5Cl2]2+. Density functional theory calculation revealed that the peak splitting in the region below 2.2 eV of the optical absorption spectrum of [Au24Pd(PPh3)10(SC2H4Ph)5Cl2]+ is due to the splitting of HOMOs and also suggested that this cluster has dipole moment. Electrochemical measurements showed that [Au24Pd(PPh3)10(SC2H4Ph)5Cl2]+ was relatively stable to reduction. These results are expected to contribute to the development of molecular rectifiers and dipole materials based on hetero-biicosahedral 25-atom clusters.
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Affiliation(s)
- Lakshmi V Nair
- Department of Applied Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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3
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Taniguchi M, Lindsey JS. Database of Absorption and Fluorescence Spectra of >300 Common Compounds for use in Photochem
CAD. Photochem Photobiol 2018; 94:290-327. [DOI: 10.1111/php.12860] [Citation(s) in RCA: 236] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 10/22/2017] [Indexed: 12/11/2022]
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4
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Wang Y, Wang R, Imai Y, Hara N, Wan X, Nakano T. π-Stacked and unstacked aggregate formation of 3,3′-diethylthiatricarbocyanine iodide, a near-infrared dye. NEW J CHEM 2018. [DOI: 10.1039/c8nj02851f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
3,3′-Diethylthiatricarbocyanine iodide (DTCI) emits distinctive monomer and dimer emissions whose intensity ratio varied depending on concentration in methanol and water.
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Affiliation(s)
- Yue Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
| | - Rong Wang
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
- College of Chemistry and Molecular Engineering
| | - Yoshitane Imai
- Graduate School of Science and Engineering
- Kindai University
- Higashiosaka City
- Japan
| | - Nobuyuki Hara
- Graduate School of Science and Engineering
- Kindai University
- Higashiosaka City
- Japan
| | - Xinhua Wan
- College of Chemistry and Molecular Engineering
- Peking University
- Beijing 100871
- China
| | - Tamaki Nakano
- Institute for Catalysis (ICAT) and Graduate School of Chemical Sciences and Engineering
- Hokkaido University
- Sapporo 001-0021
- Japan
- Integrated Research Consortium on Chemical Sciences (IRCCS)
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5
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Bishop MM, Roscioli JD, Ghosh S, Mueller JJ, Shepherd NC, Beck WF. Vibrationally Coherent Preparation of the Transition State for Photoisomerization of the Cyanine Dye Cy5 in Water. J Phys Chem B 2015; 119:6905-15. [DOI: 10.1021/acs.jpcb.5b02391] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael M. Bishop
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Jerome D. Roscioli
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Soumen Ghosh
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Jenny Jo Mueller
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Nolan C. Shepherd
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
| | - Warren F. Beck
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824-1322, United States
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6
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Conroy CV, Jiang J, Zhang C, Ahuja T, Tang Z, Prickett CA, Yang JJ, Wang G. Enhancing near IR luminescence of thiolate Au nanoclusters by thermo treatments and heterogeneous subcellular distributions. NANOSCALE 2014; 6:7416-7423. [PMID: 24879334 DOI: 10.1039/c4nr00827h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A five-to-ten fold enhancement, up to ca. 5-10% quantum efficiency, of near IR luminescence from monothiolate protected gold nanoclusters was achieved by heating in the presence of excess ligand thiols. An emission maximum in the 700-900 nm range makes these Au nanoclusters superior for bioimaging applications over other emissions centered below 650 nm due to reduced background interference, albeit visible emissions could have higher quantum efficiency. The heating procedure is shown to be effective to improve the luminescence of Au nanoclusters synthesized under a variety of conditions using two types of monothiols: mercaptosuccinic acid and tiopronin. Therefore, this heating method is believed to be a generalizable approach to improve the near IR luminescence of aqueous soluble Au nanoclusters, which enables better bioimaging applications. The high quantum yield is found relatively stable over a wide pH range. PEGylation of the Au nanoclusters reduces their quantum efficiency but improves their permeation into the cytoplasm. Interestingly, z-stack confocal analysis clearly reveals the presence of Au nanoclusters inside the cell nucleus in single cell imaging. The finding addresses controversial literature reports and demonstrates the internalization and heterogeneous subcellular distributions, particularly inside the nucleus. The high luminescence intensity, small overall dimension, cell and nuclear distribution, chemical stability and low-to-non toxicity make these Au nanoclusters promising probes for broad cell dynamics and imaging applications.
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Affiliation(s)
- Cecil V Conroy
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302, USA.
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7
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Guarin CA, Villabona-Monsalve JP, López-Arteaga R, Peon J. Dynamics of the Higher Lying Excited States of Cyanine Dyes. An Ultrafast Fluorescence Study. J Phys Chem B 2013; 117:7352-62. [DOI: 10.1021/jp400278t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Cesar A. Guarin
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito
Exterior, Ciudad Universitaria, México, 04510, D.F., México
| | - Juan. P. Villabona-Monsalve
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito
Exterior, Ciudad Universitaria, México, 04510, D.F., México
| | - Rafael López-Arteaga
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito
Exterior, Ciudad Universitaria, México, 04510, D.F., México
| | - Jorge Peon
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito
Exterior, Ciudad Universitaria, México, 04510, D.F., México
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8
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Furuta K, Fuyuki M, Wada A. Multiphoton reaction of DTTCI observed by femtosecond pump–probe and two-pulse correlation measurements. Chem Phys 2013. [DOI: 10.1016/j.chemphys.2013.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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9
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Park S, Lee D. Synthesis and electrochemical and spectroscopic characterization of biicosahedral Au25 clusters. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7049-7054. [PMID: 22489959 DOI: 10.1021/la300817j] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The synthesis and electrochemical and spectroscopic characterization of biicosahedral Au(25) clusters with a composition of [Au(25)(PPh(3))(10)(thiolate)(5)Cl(2)](2+) are described. The biicosahedral Au(25) clusters protected with various types of thiol ligands including alkanethiols, 2-phenylethanethiol, 11-mercaptoundecanoic acid, and 11-mercapto-1-undecanol were synthesized in high yields using a one-step, one-phase procedure in which Au(PPh(3))Cl is reduced with tert-butylamine-borane in the presence of the thiol ligand in a 3:1 v/v chloroform/ethanol solution. All biicosahedral Au(25) clusters prepared exhibit characteristic optical absorption and photoluminescence properties. The emission energy is found to be substantially smaller than the optical absorption energy gap of 1.82 eV, indicating a subgap energy luminescence. The electrochemical HOMO-LUMO gap (~1.54 eV) of the clusters is also substantially smaller than the optical absorption energy gap but rather similar to the emission energy. These electrochemical and optical properties of the biicosahedral Au(25) clusters are distinctly different from those of the Au(25)(thiolate)(18) clusters.
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Affiliation(s)
- SunYoung Park
- Department of Chemistry, Yonsei University, Seoul, Korea
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10
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Abstract
Hyperbranched poly (amino amine) s (HPAMAMs), synthesized by Michael addition of 1-(2-aminoethyl) piperazine (AEPZ) and methyl acrylate (MA), can emit blue fluorescence under excitation wavelength. However, the relatively weak fluorescence of HPAMAMs is still an obstacle for its practical applications. Gold is one of the most frequently used metals for fluorescence enhancement. In this research, the influence of gold nanoparticles on fluorescence property of HPAMAMs was investigated by fluorometry. It was found that gold nanoparticles (GNPs) with smaller size (< 5 nm) presented greatly enhanced emission. The GNPs with larger size (~10 nm in diameter) and definite surface plasmon absorption can quench the fluorescence of HPAMAMs.
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11
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Yarmoluk SM, Kovalska VB, Volkova KD. Optimized Dyes for Protein and Nucleic Acid Detection. ADVANCED FLUORESCENCE REPORTERS IN CHEMISTRY AND BIOLOGY III 2011. [DOI: 10.1007/978-3-642-18035-4_5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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12
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Jiang G, Wang Y, Sun X. Influence on fluorescence properties of hyperbranched poly(amidoamine)s by nano golds. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/polb.22137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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13
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Jiang G, Sun X, Wang Y, Ding M. Synthesis and fluorescence properties of hyperbranched poly(amidoamine)s with high density tertiary nitrogen. Polym Chem 2010. [DOI: 10.1039/c0py00194e] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Dietzek B, Tarnovsky AN, Yartsev A. Visualizing overdamped wavepacket motion: Excited-state isomerization of pseudocyanine in viscous solvents. Chem Phys 2009. [DOI: 10.1016/j.chemphys.2008.10.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Wang G, Guo R, Kalyuzhny G, Choi JP, Murray RW. NIR Luminescence Intensities Increase Linearly with Proportion of Polar Thiolate Ligands in Protecting Monolayers of Au38and Au140Quantum Dots. J Phys Chem B 2006; 110:20282-9. [PMID: 17034208 DOI: 10.1021/jp0640528] [Citation(s) in RCA: 103] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The near-infrared photoluminescence of monolayer-protected Au38 and Au140 clusters (MPCs) is intensified with exchange of nonpolar ligands by more polar thiolate ligands. The effect is general and includes as more polar in-coming ligands: thiophenolates with a variety of p-substituents; alkanethiolates omega-terminated by alcohol, acid, or quaternary ammonium groups; and thio-amino acids. Remarkably, place exchanges of the initial phenylethanethiolates on Au38 MPCs by p-substituted thiophenolates and thio-amino acids and of hexanethiolates on Au140 MPCs by omega-quaternary ammonium terminated undecylthiolates result in increases in the near-infrared (NIR) luminescence intensities that are linear with the number of new polar ligands. The increased intensities are systematically larger for thiophenolate ligands having more electron-withdrawing substituents. Analogous effects on intensities are observed in the NIR emission of Au140 MPCs upon place exchange of alkanethiolates with thiolates having short connecting alkanethiolate chains to quaternary ammonium and to omega-carboxylic acid termini, and with oxidative charging of the Au cores. The observations are consistent with sensitivity of the luminescence mechanism to any factor that enhances the electronic polarization of the bonds between the Au core atoms and their thiolate ligands. The luminescence is discussed in terms of a surface electronic excitation, as opposed to a core volume excitation.
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Affiliation(s)
- Gangli Wang
- Kenan Laboratories of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599-3290, USA
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16
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17
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Wang G, Huang T, Murray RW, Menard L, Nuzzo RG. Near-IR Luminescence of Monolayer-Protected Metal Clusters. J Am Chem Soc 2004; 127:812-3. [PMID: 15656600 DOI: 10.1021/ja0452471] [Citation(s) in RCA: 299] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Visible-near-IR luminescence spectra of gold MPCs that are similar, irrespective of the number of core atoms (all <2 nm diameter) and different monolayers, are reported. The luminescence can be quantitatively invoked by introducing polar ligands into nonpolar MPC monolayers and by galvanic exchange of metal atoms on the MPC core surface with different metals. The observed emissions are believed to result from surface-localized states that depend on both the core metal of the nanoparticle and the ligands attached to the metal surface.
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Affiliation(s)
- Gangli Wang
- Kenan Laboratories of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, USA
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18
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Laage D, Plaza P, Blanchard-Desce M, Martin MM. Multiple relaxation pathways in push-pull polyenes. Photochem Photobiol Sci 2002; 1:526-35. [PMID: 12659165 DOI: 10.1039/b203201p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Subpicosecond absorption and gain spectroscopy are used to investigate the excited-state behavior of push-pull polyenes made of a diethylthiobarbituric acid electron-acceptor group and a dibutylaniline electron-donor group linked by a pi-conjugated chain. Four polyenes of increasing length, ranging from n = 2 to 5 double bonds, are compared. The relaxation path and relaxation kinetics are studied in dioxane and in cyclohexane, a polar and a nonpolar solvent, respectively. In dioxane, the results provide evidence for the formation of an emissive transient state on an ultrashort time scale (2-3 ps) attributed to a charge transfer (CT) state. The regular shift of the gain peak of this transient state with increase in the chain length (ca. 100 nm per added double bond) indicates that its structure is similar to that of a cyanine, i.e. with a fully conjugated polyenic chain. Its lifetime ranges from a few tens to a few hundreds of picoseconds depending on the chain length. When the number of double bonds increases from n = 2 to 3, the lifetime increases, then decreases continuously for longer chains. In cyclohexane, where the transient CT state is not formed, the decay of the initial excited state follows the same trend when the chain length increases but the lifetimes are shorter than that of the CT state in dioxane. In both solvents, the characterization of long-lived photoproducts by synchronizing two low repetition-rate subpicosecond laser systems demonstrates a change in the relaxation route as the chain length increases. Isomerization occurs for n = 2, whereas intersystem crossing to the triplet state occurs for n = 4. The change in the relaxation channel is observed for n = 3 in both solvents with however a solvent-dependent behavior. In dioxane, relaxation to the triplet state is already observed for n = 3, while an intermediate regime with a relaxation directly to the ground state is observed in cyclohexane. The photophysics of the studied push-pull polyenes is tentatively compared to that of polymethine cyanines and substituted carotenoids.
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Affiliation(s)
- Damien Laage
- Département de Chimie, Ecole Normale Supérieure (UMR CNRS 8640 PASTEUR), 24 rue Lhomond, 75231 Paris Cedex 05, France
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19
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Yarmoluk SM, Losytskyy MY, Yashchuk VM. Nonradiative deactivation of the electronic excitation energy in cyanine dyes: influence of binding to DNA. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2002; 67:57-63. [PMID: 12007468 DOI: 10.1016/s1011-1344(02)00281-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The processes of nonradiative deactivation of electronic excitation energy in cyanine dyes determine their quantum yield. Because of that, the study of the influence of cyanines binding to DNA on these processes can provide information on the causes leading to the cyanines fluorescence intensity enhancement in the presence of DNA. In the presented paper, the activation energies of nonradiative degradation of electronic excitation, quantum yields and rate constants of nonradiative transitions of several cyanines in free state and in the presence of DNA were established and compared. The mechanisms of nonradiative deactivation of dye excitation energy were discussed.
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Affiliation(s)
- S M Yarmoluk
- Institute of Molecular Biology and Genetics, National Academy of Science of Ukraine, Zabolotnogo Str. 150, 03143, Kyiv, Ukraine.
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20
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Köhn F, Hofkens J, Gronheid R, Van der Auweraer M, De Schryver FC. Parameters Influencing the On- and Off-Times in the Fluorescence Intensity Traces of Single Cyanine Dye Molecules. J Phys Chem A 2002. [DOI: 10.1021/jp012959u] [Citation(s) in RCA: 94] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fabian Köhn
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium
| | - Roel Gronheid
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium
| | - Mark Van der Auweraer
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium
| | - Frans C. De Schryver
- Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200 F, 3001 Leuven, Belgium
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21
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Vranken N, Jordens S, De Belder G, Lor M, Rousseau E, Schweitzer G, Toppet S, Van der Auweraer M, De Schryver FC. The Influence of Meso-Substitution on the Photophysical Behavior of Some Thiacarbocyanine Dyes in Dilute Solution. J Phys Chem A 2001. [DOI: 10.1021/jp0123536] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nadia Vranken
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Sven Jordens
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Gino De Belder
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Marc Lor
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Els Rousseau
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Gerd Schweitzer
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Suzanne Toppet
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Mark Van der Auweraer
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
| | - Frans C. De Schryver
- Laboratory for Molecular Dynamics and Spectroscopy, Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Heverlee, Belgium
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22
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Palit DK, Singh AK, Bhasikuttan AC, Mittal JP. Relaxation Dynamics in the Excited States of LDS-821 in Solution. J Phys Chem A 2001. [DOI: 10.1021/jp004142r] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dipak K. Palit
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Ajay K. Singh
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - A. C. Bhasikuttan
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Jai P. Mittal
- Radiation Chemistry and Chemical Dynamics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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23
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Cao R, Venezia CF, Armitage BA. Investigation of DNA binding modes for a symmetrical cyanine dye trication: effect of DNA sequence and structure. J Biomol Struct Dyn 2001; 18:844-56. [PMID: 11444373 DOI: 10.1080/07391102.2001.10506712] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The DNA binding behavior of a tricationic cyanine dye (DiSC3+(5)) was studied using the [Poly(dA-dT)]2, [Poly(dI-dC)]2 and Poly(dA) x Poly(dT) duplex sequences and the Poly(dA) x 2Poly(dT) triplex. Optical spectroscopy and viscometry results indicate that the dye binds to the triplex structure by intercalation, to the nonalternating Poly(dA) x Poly(dT) duplex through minor groove binding and to the alternating [Poly(dA-dT)]2 duplex by a combination of two binding modes: intercalation at low concentration and dimerization within the minor groove at higher concentration. Dimerization occurs at lower dye concentrations for the [Poly(dI-dC)]2 sequence, consistent with our previous investigations on an analogous monocationic cyanine dye. [Seifert, J.L., et al. (1999) J. Am. Chem. Soc. 121, 2987-2995] These studies illustrate the diversity of DNA binding modes that are available to a given ligand structure.
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Affiliation(s)
- R Cao
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, PA 15213-3890, USA
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24
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Marks AF, Noah AK, Sahyun M. Bond-length alternation in symmetrical cyanine dyes. J Photochem Photobiol A Chem 2001. [DOI: 10.1016/s1010-6030(00)00432-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sanchez-Galvez A, Hunt P, Robb MA, Olivucci M, Vreven T, Schlegel HB. Ultrafast Radiationless Deactivation of Organic Dyes: Evidence for a Two-State Two-Mode Pathway in Polymethine Cyanines. J Am Chem Soc 2000. [DOI: 10.1021/ja993985x] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adelaida Sanchez-Galvez
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Patricia Hunt
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Michael A. Robb
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Massimo Olivucci
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - Thom Vreven
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
| | - H. Bernhard Schlegel
- Contribution from the Department of Chemistry, King's College London, Strand, London WC2R 2LS, U.K., Istituto di Chimica Organica, Universitá degli Studi di Siena, via Aldo Moro, I-53100 Siena, Italy, and Department of Chemistry, Wayne State University, Detroit, Michigan 48202
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Lim JH, Przhonska OV, Khodja S, Yang S, Ross T, Hagan DJ, Van Stryland EW, Bondar MV, Slominsky YL. Polymethine and squarylium molecules with large excited-state absorption. Chem Phys 1999. [DOI: 10.1016/s0301-0104(99)00086-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Seifert JL, Connor RE, Kushon SA, Wang M, Armitage BA. Spontaneous Assembly of Helical Cyanine Dye Aggregates on DNA Nanotemplates. J Am Chem Soc 1999. [DOI: 10.1021/ja984279j] [Citation(s) in RCA: 221] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jennifer L. Seifert
- Contribution from the Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15206
| | - Rebecca E. Connor
- Contribution from the Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15206
| | - Stuart A. Kushon
- Contribution from the Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15206
| | - Miaomiao Wang
- Contribution from the Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15206
| | - Bruce A. Armitage
- Contribution from the Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15206
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