Excited-State Dynamics of Thienoguanosine, an Isomorphic Highly Fluorescent Analogue of Guanosine (448 views)
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2019 May 28; 25(30): 7375-7386.
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Paper type: Journal Article,
Impact factor: 5.16, 5-year impact factor: 5.477
Url: Not available.
Keywords: Dna, Td-Dft Calculations, Density Functional Calculations, Fluorescence Spectroscopy, Nucleobases, Solvent Effects,
Affiliations:
*** IBB - CNR ***
Departamento de Quimica, Facultad de Ciencias, Modulo13, Universidad Autonoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049 Madrid, Spain.
Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Universite de Strasbourg, Faculte de pharmacie, 74 route du Rhin, 67401, Illkirch, France.
Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, W12 0BZ, London, UK.
Dipartimento di Biotecnologie, Chimica e Farmacia, Universita degli Studi di Siena, 53100, Siena, Italy.
Consiglio Nazionale delle Ricerche, Istituto Biostrutture e Bioimmagini, Via Mezzocannone 16, 80134, Napoli, Italy.
References:
Not available.
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2019 May 28; 25(30): 7375-7386.
Export to BibTeX Export to EndNote
Paper type: Journal Article,
Impact factor: 5.16, 5-year impact factor: 5.477
Url: Not available.
Keywords: Dna, Td-Dft Calculations, Density Functional Calculations, Fluorescence Spectroscopy, Nucleobases, Solvent Effects,
Affiliations:
*** IBB - CNR ***
Departamento de Quimica, Facultad de Ciencias, Modulo13, Universidad Autonoma de Madrid, Campus de Excelencia UAM-CSIC, Cantoblanco, 28049 Madrid, Spain.
Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Universite de Strasbourg, Faculte de pharmacie, 74 route du Rhin, 67401, Illkirch, France.
Department of Chemistry, Molecular Sciences Research Hub, Imperial College London, White City Campus, 80 Wood Lane, W12 0BZ, London, UK.
Dipartimento di Biotecnologie, Chimica e Farmacia, Universita degli Studi di Siena, 53100, Siena, Italy.
Consiglio Nazionale delle Ricerche, Istituto Biostrutture e Bioimmagini, Via Mezzocannone 16, 80134, Napoli, Italy.
References:
Not available.
Excited-State Dynamics of Thienoguanosine, an Isomorphic Highly Fluorescent Analogue of Guanosine
Thienoguanosine ((th) G) is an isomorphic analogue of guanosine with promising potentialities as fluorescent DNA label. As a free probe in protic solvents, (th) G exists in two tautomeric forms, identified as the H1, being the only one observed in nonprotic solvents, and H3 keto-amino tautomers. We herein investigate the photophysics of (th) G in solvents of different polarity, from water to dioxane, by combining time-resolved fluorescence with PCM/TD-DFT and CASSCF calculations. Fluorescence lifetimes of 14.5-20.5 and 7-13 ns were observed for the H1 and H3 tautomers, respectively, in the tested solvents. In methanol and ethanol, an additional fluorescent decay lifetime ( approximately 3 ns) at the blue emission side (lambda approximately 430 nm) as well as a 0.5 ns component with negative amplitude at the red edge of the spectrum, typical of an excited-state reaction, were observed. Our computational analysis explains the solvent effects observed on the tautomeric equilibrium. The main radiative and nonradiative deactivation routes have been mapped by PCM/TD-DFT calculations in solution and CASSCF in the gas phase. The most easily accessible conical intersection, involving an out-of plane motion of the sulfur atom in the five-membered ring of (th) G, is separated by a sizeable energy barrier (>/=0.4 eV) from the minimum of the spectroscopic state, which explains the large experimental fluorescence quantum yield.
Thienoguanosine ((th) G) is an isomorphic analogue of guanosine with promising potentialities as fluorescent DNA label. As a free probe in protic solvents, (th) G exists in two tautomeric forms, identified as the H1, being the only one observed in nonprotic solvents, and H3 keto-amino tautomers. We herein investigate the photophysics of (th) G in solvents of different polarity, from water to dioxane, by combining time-resolved fluorescence with PCM/TD-DFT and CASSCF calculations. Fluorescence lifetimes of 14.5-20.5 and 7-13 ns were observed for the H1 and H3 tautomers, respectively, in the tested solvents. In methanol and ethanol, an additional fluorescent decay lifetime ( approximately 3 ns) at the blue emission side (lambda approximately 430 nm) as well as a 0.5 ns component with negative amplitude at the red edge of the spectrum, typical of an excited-state reaction, were observed. Our computational analysis explains the solvent effects observed on the tautomeric equilibrium. The main radiative and nonradiative deactivation routes have been mapped by PCM/TD-DFT calculations in solution and CASSCF in the gas phase. The most easily accessible conical intersection, involving an out-of plane motion of the sulfur atom in the five-membered ring of (th) G, is separated by a sizeable energy barrier (>/=0.4 eV) from the minimum of the spectroscopic state, which explains the large experimental fluorescence quantum yield.
Excited-State Dynamics of Thienoguanosine, an Isomorphic Highly Fluorescent Analogue of Guanosine
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Excited-State Dynamics of Thienoguanosine, an Isomorphic Highly Fluorescent Analogue of Guanosine
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Santoro F, Barone V, Improta R
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P Natl Acad Sci Usa (ISSN: 0027-8424, 1091-6490, 0027-8424print), 2007; 104(24): 9931-9936.
Impact Factor: 9.598
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Puglisi A, Purrello R, Rizzarelli E, Sortino S, Vecchio G
* Spectroscopic and self-association behavior of a porphyrin-β- cyclodextrin conjugate (602 views)
New J Chem (ISSN: 1144-0546), 2007; 31(8): 1499-1506.
Impact Factor: 2.651
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Santoro F, Gustavsson T, Lami S, Barone V, Improta R
* Towards the understanding of the excited state dynamics of nucleic acids: Solvent and stacking effect on the photophysical behavior of nucleobases (730 views)
Aip Conf Proc (ISSN: 0094-243x), 2007; 963(2): 631-634.
Impact Factor: 0
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De Luca S, Saviano M, Lassiani L, Yannakopoulou K, Stefanidou P, Aloj L, Morelli G, Varnavas A
* Anthranilic acid based CCK1 receptor antagonists and CCK-8 have a common step in their "receptor desmodynamic processes" (629 views)
J Med Chem (ISSN: 0022-2623, 1520-4804, 0022-2623print), 2006 Apr 20; 49(8): 2456-2462.
Impact Factor: 5.115
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De Luca S, Sanseverino M, Zocchi I, Pedone C, Morelli G, Ragone R
* Receptor fragment approach to the binding between CCK8 peptide and cholecystokinin receptors: A fluorescence study on type B receptor fragment CCKB-R (352-379) (755 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2005 Mar; 77(4): 205-211.
Impact Factor: 2.545
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Improta R, Barone V
* Absorption and fluorescence spectra of uracil in the gas phase and in aqueous solution: A TD-DFT quantum mechanical study (632 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2004 Nov 10; 126(44): 14320-14321.
Impact Factor: 6.903
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De Luca S, Ragone R, Bracco C, Digilio G, Aloj L, Tesauro D, Saviano M, Pedone C, Morelli G
* A cyclic CCK8 analogue selective for the cholecystokinin type A receptor: design, synthesis, NMR structure and binding measurements (831 views)
Chembiochem (ISSN: 1439-7633, 1439-4227, 1439-7633electronic), 2003 Nov 7; 4(11): 1176-1187.
Impact Factor: 3.992
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De Luca S, Ragone R, Bracco C, Digilio G, Tesauro D, Saviano M, Pedone C, Morelli G
* The role of segment 32-47 of cholecystokinin receptor type A in CCK8 binding: Synthesis, nuclear magnetic resonance, circular dichroism and fluorescence studies (663 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2003 Mar; 9(3): 156-169.
Impact Factor: 1.377
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Improta R, Kudin KN, Scuseria GE, Barone V
* Structure and magnetic properties of nitroxide molecular crystals by density functional calculations employing periodic boundary conditions (592 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2002 Jan 9; 124(1): 113-120.
Impact Factor: 6.201
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Ragone R, De Luca S, Tesauro D, Pedone C, Morelli G
Fluorescence studies on the binding between 1-47 fragment of cholecystokinin receptor CCKA-R(1-47) and nonsulfated cholecystokinin octapeptide CCK8 (697 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2000; 56(1): 47-53.
Impact Factor: 2.405
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Gallo P, Saviano M, Rossi F, Pavone V, Pedone C, Ragone R, Stiuso P, Colonna G
SPECIFIC INTERACTION BETWEEN CYCLOPHILIN AND CYCLIC-PEPTIDES (727 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1995 Sep; 36(3): 273-281.
Impact Factor: 2.425
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* Dancing with Nucleobases: Unveiling the Self-Assembly Properties of DNA and RNA Base-Containing Molecules for Gel Formation (376 views)
Gels, 2023 Dec 23; 10: 16-16.
Impact Factor: 4.6
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Ciaco S, Gavvala K, Greiner V, Mazzoleni V, Didier P, Ruff M, Martinez-fernandez L, Improta R, Mély Y
* Thienoguanosine brightness in DNA duplexes is governed by the localization of itsππ* excitation in the lowest energy absorption band (439 views)
Methods Appl Fluoresc (ISSN: 2050-6120linking), 2022 May 5; 10(3): N/D-N/D.
Impact Factor: 2.79
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Balanikas E, Martinez-fernandez L, Improta R, Podbevšek P, Baldacchino G, Markovitsi D
* The Structural Duality of Nucleobases in Guanine Quadruplexes Controls Their Low-Energy Photoionization (333 views)
J Phys Chem Lett (ISSN: 1948-7185linking, 1948-7185electronic), 2021 Sep 2; 12(34): 8309-8313.
Impact Factor: 6.475
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Scognamiglio PL, Platella C, Napolitano E, Musumeci D, Roviello GN
* From Prebiotic Chemistry to Supramolecular Biomedical Materials: Exploring the Properties of Self-Assembling Nucleobase-Containing Peptides (301 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2021 Jun 10; 26(12): 3558-3558.
Impact Factor: 4.411
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Marchesani F, Gianquinto E, Autiero I, Michielon A, Campanini B, Faggiano S, Bettati S, Mozzarelli A, Spyrakis F, Bruno S
* The allosteric interplay between S-nitrosylation and glycine binding controls the activity of human serine racemase (381 views)
Febs J (ISSN: 1742-464xlinking), 2021 May; 288(9): 3034-3054.
Impact Factor: 4.739
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Green JA, Jouybari MY, Aranda D, Improta R, Santoro F
* Nonadiabatic Absorption Spectra and Ultrafast Dynamics of DNA and RNA Photoexcited Nucleobases (246 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2021 Mar 20; 26(6): N/D-N/D.
Impact Factor: 4.411
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Martinez-fernandez L, Gustavsson T, Diederichsen U, Improta R
* Excited State Dynamics of 8-Vinyldeoxyguanosine In Aqueous Solution Studied by Time-Resolved Fluorescence Spectroscopy and Quantum Mechanical Calculations (295 views)
Molecules (ISSN: 1420-3049linking, 1420-3049electronic), 2020 Feb 13; 25(4): N/D-N/D.
Impact Factor: 3.267
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Avitabile C, Diaferia C, Roviello V, Altamura D, Giannini C, Vitagliano L, Accardo A, Romanelli A
* Fluorescence and Morphology of Self-Assembled Nucleobases and Their Diphenylalanine Hybrid Aggregates (485 views)
Chemistry (ISSN: 0947-6539linking, 1521-3765electronic), 2019 Nov 22; 25(65): 14850-14857.
Impact Factor: 5.476
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Caporale A, Monti A, Selis F, Sandomenico A, Tonon G, Ruvo M, Doti N
* A comparative analysis of catalytic activity and stability of microbial transglutaminase in controlled denaturing conditions (369 views)
J Biotechnol (ISSN: 0168-1656linking), 2019 Aug 20; 302: 48-57.
Impact Factor: 3.163
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Martinez-fernandez L, Improta R
* Novel adenine/thymine photodimerization channels mapped by PCM/TD-DFT calculations on dApT and TpdA dinucleotides (785 views)
Photoch Photobio Sci (ISSN: 1474-905x), 2017 Jun 22; 16(8): 1277-1283.
Impact Factor: 2.902
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Martinez-fernandez L, Pepino AJ, Segarra-marti J, Jovaisaite J, Vaya I, Nenov A, Markovitsi D, Gustavsson T, Banyasz A, Garavelli M, Improta R
* Photophysics of Deoxycytidine and 5-Methyldeoxycytidine in Solution: A Comprehensive Picture by Quantum Mechanical Calculations and Femtosecond Fluorescence Spectroscopy (602 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2017 Jun 14; 139(23): 7780-7791.
Impact Factor: 14.357
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Roviello GN, Musumeci D
* Synthetic approaches to nucleopeptides containing all the four nucleobases, and nucleic acid-binding studies on a mixed-sequence nucleo-oligolysine (884 views)
Rsc Adv (ISSN: 2046-2069, 2046-2069electronic), 2016 Jun; 6: 63578-63585.
Impact Factor: 3.108
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Vayá I, Brazard J, Huix-rotllant M, Thazhathveetil AK, Lewis FD, Gustavsson T, Burghardt I, Improta R, Markovitsi D
* High-Energy Long-Lived Mixed Frenkel-Charge-Transfer Excitons: From Double Stranded (AT)n to Natural DNA (588 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2016; 22(14): 4904-4914.
Impact Factor: 5.317
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Improta R, Santoro F, Blancafort L
* Quantum Mechanical Studies on the Photophysics and the Photochemistry of Nucleic Acids and Nucleobases (1991 views)
Chem Rev (ISSN: 0009-2665), 2016; 116(6): 3540-3593.
Impact Factor: 47.928
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Roviello GN, Vicidomini C, Di Gaetano S, Capasso D, Musumeci D, Roviello V
* Solid phase synthesis and RNA-binding activity of an arginine-containing nucleopeptide (837 views)
Rsc Adv (ISSN: 2046-2069, 2046-2069electronic), 2016; 6(17): 14140-14148.
Impact Factor: 3.108
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Calce E, Monfregola L, Saviano M, De Luca S
* HER2-mediated anticancer drug delivery: strategies to prepare targeting ligands highly specific for the receptor (1172 views)
Curr Med Chem (ISSN: 0929-8673, 1875-533x, 1875-533xelectronic), 2015 May 20; 22(21): 2525-2538.
Impact Factor: 3.455
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Muñoz-Losa A, Markovitsi D, Improta R
* A State-Specific PCM-DFT method to include dynamic solvent effects in the calculation of ionization energies: Application to DNA bases (445 views)
Chem Phys Lett (ISSN: 0009-2614), 2015; 634: 20-24.
Impact Factor: 1.86
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Nardon C, Boscutti G, Dalla Via L, Ringhieri P, Di Noto V, Morelli G, Accardo A, Fregona D
* CCK8 peptide-labeled Pluronic® F127 micelles as a targeted vehicle of gold-based anticancer chemotherapeutics (881 views)
Medchemcomm (ISSN: 2040-2503), 2015; 6(1): 155-163.
Impact Factor: 2.319
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Improta R, Barone V
* Excited States behavior of nucleobases in solution: insights from computational studies (794 views)
Top Curr Chem (ISSN: 0340-1022), 2015; 355: 329-357.
Impact Factor: 4.014
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Cohen SS, Riven I, Cortajarena AL, De Rosa L, D'Andrea LD, Regan L, Haran G
* Probing the molecular origin of native-state flexibility in repeat proteins (572 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 0002-7863print), 2015; 137(32): 10367-10373.
Impact Factor: 13.038
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Huix-Rotllant M, Brazard J, Improta R, Burghardt I, Markovitsi D
* Stabilization of mixed frenkel-charge transfer excitons extended across both strands of guanine-cytosine DNA duplexes (830 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2015; 6(12): 2247-2251.
Impact Factor: 8.539
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Changenet-Barret P, Gustavsson T, Improta R, Markovitsi D
* Ultrafast Excited-State Deactivation of 8-Hydroxy-2′-deoxyguanosine Studied by Femtosecond Fluorescence Spectroscopy and Quantum-Chemical Calculations (1206 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2015; 119(23): 6131-6139.
Impact Factor: 2.883
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Improta R, Ferrer FJ, Stendardo E, Santoro F
* Quantum-classical calculation of the absorption and emission spectral shapes of oligothiophenes at low and room temperature by first-principle calculations (521 views)
Chemphyschem (ISSN: 1439-4235, 1439-7641, 1439-4235linking), 2014 Oct 20; 15(15): 3320-3333.
Impact Factor: 3.419
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Improta R
* Quantum mechanical calculations unveil the structure and properties of the absorbing and emitting excited electronic states of guanine quadruplex (1086 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2014 Jun 23; 20(26): 8106-8115.
Impact Factor: 5.731
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Santoro F, Improta R, Fahleson T, Kauczor J, Norman P, Coriani S
* Relative stability of the La and Lb excited states in adenine and guanine: Direct evidence from TD-DFT calculations of MCD spectra (694 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2014 Jun 5; 5(11): 1806-1811.
Impact Factor: 7.458
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Chi M-C, Lo Y-H, Chen Y-Y, Lin L-L, Merlino A
* γ-Glutamyl transpeptidase architecture: Effect of extra sequence deletion on autoprocessing, structure and stability of the protein from Bacillus licheniformis (703 views)
Bba-Gen Subjects (ISSN: 0925-4439, 0006-3002, 1570-9639), 2014; 1844(12): 2290-2297.
Impact Factor: 4.882
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Cantisani M, Falanga A, Incoronato N, Russo L, De Simone A, Morelli G, Berisio R, Galdiero M, Galdiero S
* Conformational modifications of gB from herpes simplex virus type 1 analyzed by synthetic peptides (1084 views)
J Med Chem (ISSN: 0022-2623, 1520-4804, 0022-2623print), 2013 Nov 14; 56(21): 8366-8376.
Impact Factor: 5.48
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Galdiero S, Falanga A, Cantisani M, Vitiello M, Morelli G, Galdiero M
* Peptide-Lipid Interactions: Experiments and Applications (1620 views)
Int J Mol Sc (ISSN: 1422-0067, 1661-6596, 1422-0067electronic), 2013 Sep; 14(9): 18758-18789.
Impact Factor: 2.339
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Satriano C, Sfrazzetto GT, Amato ME, Ballistreri FP, Copani A, Giuffrida ML, Grasso G, Pappalardo A, Rizzarelli E, Tomaselli GA, Toscano RM
* A ratiometric naphthalimide sensor for live cell imaging of copper(i) (853 views)
Chem Commun (ISSN: 1359-7345, 1364-548x, 1364-548xelectronic), 2013 Jun 21; 49(49): 5565-5567.
Impact Factor: 6.718
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Banyasz A, Gustavsson T, Onidas D, Changenet-Barret P, Markovitsi D, Improta R
* Multi-pathway excited state relaxation of adenine oligomers in aqueous solution: A joint theoretical and experimental study (841 views)
Chemistry (ISSN: 0947-6539, 1521-3765, 1521-3765electronic), 2013 Mar; 19(11): 3762-3774.
Impact Factor: 5.696
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Travaglia A, Satriano C, Giuffrida ML, La Mendola D, Rampazzo E, Prodi L, Rizzarelli E
* Electrostatically driven interaction of silica-supported lipid bilayer nanoplatforms and a nerve growth factor-mimicking peptide (560 views)
Soft Matter (ISSN: 1744-683x), 2013; 9(18): 4648-4654.
Impact Factor: 4.151
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Improta R
* Photophysics and photochemistry of thymine deoxy-dinucleotide in water: A PCM/TD-DFT quantum mechanical study (614 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2012 Dec 13; 116(49): 14261-14274.
Impact Factor: 3.607
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Banyasz A, Douki T, Improta R, Gustavsson T, Onidas D, Vaya I, Perron M, Markovitsi D
* Electronic excited states responsible for dimer formation upon UV absorption directly by thymine strands: Joint experimental and theoretical study (745 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2012 Sep 12; 134(36): 14834-14845.
Impact Factor: 10.677
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Hua Y, Changenet-Barret P, Improta R, Vaya I, Gustavsson T, Kotlyar AB, Zikich D, Sket P, Plavec J, Markovitsi D
* Cation effect on the electronic excited states of guanine nanostructures studied by time-resolved fluorescence spectroscopy (776 views)
J Phys Chem C (ISSN: 1932-7447), 2012 Jul 12; 116(27): 14682-14689.
Impact Factor: 4.814
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Gustavsson T, Improta R, Banyasz A, Vaya I, Markovitsi D
* The effect of methylation on the excited state dynamics of aminouracils (794 views)
J Photochem Photobiol A Chem (ISSN: 1010-6030), 2012 Apr 15; 234: 37-43.
Impact Factor: 2.416
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Musumeci D, Oliviero G, Roviello GN, Bucci EM, Piccialli G
* G-quadruplex-forming oligonucleotide conjugated to magnetic nanoparticles: Synthesis, characterization, and enzymatic stability assays (1528 views)
Bioconjug Chem (ISSN: 1043-1802, 1520-4812, 1520-4812electronic), 2012 Mar 21; 23(3): 382-391.
Impact Factor: 4.58
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Merlino A, Vitiello G, Grimaldi M, Sica F, Busi E, Basosi R, D’Ursi A, Fragneto G, Paduano L, D’Errico G
* Destabilization of Lipid Membranes by a Peptide Derived from Glycoprotein gp36 of Feline Immunodeficiency Virus: A Combined Molecular Dynamics/Experimental Study (776 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2012 Jan 12; 116(1): 401-412.
Impact Factor: 3.607
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Dargiewicz M, Biczysko M, Improta R, Barone V
* Solvent effects on electron-driven proton-transfer processes: Adenine-thymine base pairs (897 views)
Phys Chem Chem Phys (ISSN: 1463-9076, 1463-3907, 1463-9084electronic), 2012; 14(25): 8981-8989.
Impact Factor: 3.829
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Improta R, Barone V
* Interplay between "neutral" and "charge-transfer" excimers rules the excited state decay in adenine-rich polynucleotides (1052 views)
Angew Chem Int Ed (ISSN: 1433-7851, 1521-3773electronic, 1433-7851linking), 2011 Dec 9; 50(50): 12016-12019.
Impact Factor: 13.455
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Picconi D, Barone V, Lami A, Santoro F, Improta R
* The Interplay between ππ*/nπ* excited states in gas-phase thymine: A quantum dynamical study (558 views)
Chemphyschem (ISSN: 1439-4235, 1439-7641, 1439-7641electronic), 2011 Jul 11; 12(10): 1957-1968.
Impact Factor: 3.412
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Gustavsson T, Improta R, Markovitsi D
DNA/RNA: Building blocks of life under UV irradiation (533 views)
J Phys Chem Lett (ISSN: 1948-7185, 1948-7185electronic, 1948-7185linking), 2010 Jul 1; 1(13): 2025-2030.
Impact Factor: 6.687
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Tosco A, Monti MC, Fontanella B, Montefusco S, D'Andrea LD, Ziaco B, Baldantoni D, Rio MC, Marzullo L
* Copper binds the carboxy-terminus of trefoil protein 1 (TFF1), favoring its homodimerization and motogenic activity (6951 views)
Cell Mol Life Sci (ISSN: 1420-9071electronic, 1420-682xlinking), 2010 Jun; 67(11): 1943-1955.
Impact Factor: 7.047
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Improta R, Santoro F, Barone V, Lami A
* Vibronic model for the quantum dynamical study of the competition between bright and charge-transfer excited states in single-strand polynucleotides: the adenine dimer case (496 views)
J Phys Chem A (ISSN: 1089-5639, 1520-5215electronic, 1089-5639linking), 2009 Dec 31; 113(52): 15346-15354.
Impact Factor: 2.899
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Improta R, Barone V, Lami A, Santoro F
* Quantum dynamics of the ultrafast ππ*/nπ* population transfer in uracil and 5-fluoro-uracil in water and acetonitrile (469 views)
J Phys Chem B (ISSN: 1520-6106, 1520-5207, 1520-5207electronic), 2009 Oct 29; 113(43): 14491-14503.
Impact Factor: 3.471
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Accardo A, Tesauro D, Morisco A, Mangiapia G, Vaccaro M, Gianolio E, Heenan RK, Paduano L, Morelli G
* Micelles obtained by aggregation of gemini surfactants containing the CCK8 peptide and a gadolinium complex (941 views)
J Biol Inorg Chem (ISSN: 0949-8257, 1432-1327electronic, 0949-8257linking), 2009 May; 14(4): 587-599.
Impact Factor: 3.415
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Morisco A, Accardo A, Gianolio E, Tesauro D, Benedetti E, Morelli G
* Micelles derivatized with octreotide as potential target-selective contrast agents in MRI (797 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2009 Mar; 15(3): 242-250.
Impact Factor: 1.807
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Accardo A, Tesauro D, Del Pozzo L, Mangiapia G, Paduano L, Morelli G
* Micelles by self-assembling peptide-conjugate amphiphile: Synthesis and structural characterization (699 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2008 Sep; 14(8): 903-910.
Impact Factor: 1.654
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Gustavsson T, Bányász A, Sarkar N, Markovitsi D, Improta R
* Assessing solvent effects on the singlet excited state lifetime of uracil derivatives: A femtosecond fluorescence upconversion study in alcohols and D2O (550 views)
Chem Phys (ISSN: 0301-0104), 2008 Jun 23; 350(1-3): 186-192.
Impact Factor: 1.961
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Gustavsson T, Banyasz A, Sarkar N, Markovitsi D, Improta R
* Statin: New life for an old drug (830 views)
Pharmacol Res Academic Press, 2008 Jun 23; 350(1-3): 1-2.
Impact Factor: 3.976
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Santoro F, Barone V, Improta R
* Can TD-DFT calculations accurately describe the excited states behavior of stacked nucleobases? The cytosine dimer as a test case (541 views)
J Comput Chem (ISSN: 0192-8651, 1096-987xelectronic, 0192-8651linking), 2008 Apr 30; 29(6): 957-964.
Impact Factor: 3.39
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Staiano M, Saviano M, Herman P, Grycznyski Z, Fini C, Varriale A, Parracino A, Kold AB, Rossi M, D'Auria S
* Time-resolved fluorescence spectroscopy and molecular dynamics simulations point out the effects of pressure on the stability and dynamics of the porcine odorant-binding protein (1292 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2008; 89(4): 284-291.
Impact Factor: 2.823
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Barone V, Improta R, Morelli G, Santoro F
* UV-vis spectra of p-benzoquinone anion radical in solution by a TD-DFT/PCM approach (787 views)
Theor Chem Acc (ISSN: 1432-881x), 2007 Jul; 118(1): 143-148.
Impact Factor: 2.537
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Gustavsson T, Sarkar N, Banyasz A, Markovitsi D, Improta R
* Solvent effects on the steady-state absorption and fluorescence spectra of uracil, thymine and 5-fluorouracil (657 views)
Photochem Photobiol (ISSN: 0031-8655), 2007 May; 83(3): 595-599.
Impact Factor: 2.172
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Chambery A, Pisante M, Di Maro A, Di Zazzo E, Ruvo M, Costantini S, Colonna G, Parente A
* Invariant Ser211 is involved in the catalysis of PD-L4, type I RIP from Phytolacca dioica leaves (561 views)
Proteins (ISSN: 0887-3585, 1097-0134, 1097-0134electronic), 2007 Apr 1; 67(1): 209-218.
Impact Factor: 3.354
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Ronga L, Langella E, Palladino P, Marasco D, Tizzano B, Saviano M, Pedone C, Improta R, Ruvo M
* Does Tetracycline Bind Helix 2 Of Prion? An Integrated Spectroscopical And Computational Study Of The Interaction Between The Antibiotic And Alpha Helix 2 Human Prion Protein Fragments (884 views)
Proteins (ISSN: 0887-3585, 1097-0134, 1097-0134electronic), 2007 Feb 15; 66(3): 707-715.
Impact Factor: 3.354
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Improta R, Barone V, Santoro F
* Ab initio calculations of absorption spectra of large molecules in solution: Coumarin C153 (874 views)
Angew Chem Int Ed (ISSN: 1433-7851, 1521-3773electronic, 1433-7851linking), 2007; 46(3): 405-408.
Impact Factor: 10.031
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Santoro F, Barone V, Improta R
* Influence of base stacking on excited-state behavior of polyadenine in water, based on time-dependent density functional calculations (1260 views)
P Natl Acad Sci Usa (ISSN: 0027-8424, 1091-6490, 0027-8424print), 2007; 104(24): 9931-9936.
Impact Factor: 9.598
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Puglisi A, Purrello R, Rizzarelli E, Sortino S, Vecchio G
* Spectroscopic and self-association behavior of a porphyrin-β- cyclodextrin conjugate (602 views)
New J Chem (ISSN: 1144-0546), 2007; 31(8): 1499-1506.
Impact Factor: 2.651
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Santoro F, Gustavsson T, Lami S, Barone V, Improta R
* Towards the understanding of the excited state dynamics of nucleic acids: Solvent and stacking effect on the photophysical behavior of nucleobases (730 views)
Aip Conf Proc (ISSN: 0094-243x), 2007; 963(2): 631-634.
Impact Factor: 0
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De Luca S, Saviano M, Lassiani L, Yannakopoulou K, Stefanidou P, Aloj L, Morelli G, Varnavas A
* Anthranilic acid based CCK1 receptor antagonists and CCK-8 have a common step in their "receptor desmodynamic processes" (629 views)
J Med Chem (ISSN: 0022-2623, 1520-4804, 0022-2623print), 2006 Apr 20; 49(8): 2456-2462.
Impact Factor: 5.115
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De Luca S, Sanseverino M, Zocchi I, Pedone C, Morelli G, Ragone R
* Receptor fragment approach to the binding between CCK8 peptide and cholecystokinin receptors: A fluorescence study on type B receptor fragment CCKB-R (352-379) (755 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2005 Mar; 77(4): 205-211.
Impact Factor: 2.545
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Improta R, Barone V
* Absorption and fluorescence spectra of uracil in the gas phase and in aqueous solution: A TD-DFT quantum mechanical study (632 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2004 Nov 10; 126(44): 14320-14321.
Impact Factor: 6.903
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De Luca S, Ragone R, Bracco C, Digilio G, Aloj L, Tesauro D, Saviano M, Pedone C, Morelli G
* A cyclic CCK8 analogue selective for the cholecystokinin type A receptor: design, synthesis, NMR structure and binding measurements (831 views)
Chembiochem (ISSN: 1439-7633, 1439-4227, 1439-7633electronic), 2003 Nov 7; 4(11): 1176-1187.
Impact Factor: 3.992
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De Luca S, Ragone R, Bracco C, Digilio G, Tesauro D, Saviano M, Pedone C, Morelli G
* The role of segment 32-47 of cholecystokinin receptor type A in CCK8 binding: Synthesis, nuclear magnetic resonance, circular dichroism and fluorescence studies (663 views)
J Pept Sci (ISSN: 1075-2617, 1099-1387, 1075-2617print), 2003 Mar; 9(3): 156-169.
Impact Factor: 1.377
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Improta R, Kudin KN, Scuseria GE, Barone V
* Structure and magnetic properties of nitroxide molecular crystals by density functional calculations employing periodic boundary conditions (592 views)
J Am Chem Soc (ISSN: 0002-7863, 0002-2786, 1520-5126), 2002 Jan 9; 124(1): 113-120.
Impact Factor: 6.201
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Ragone R, De Luca S, Tesauro D, Pedone C, Morelli G
Fluorescence studies on the binding between 1-47 fragment of cholecystokinin receptor CCKA-R(1-47) and nonsulfated cholecystokinin octapeptide CCK8 (697 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 2000; 56(1): 47-53.
Impact Factor: 2.405
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Gallo P, Saviano M, Rossi F, Pavone V, Pedone C, Ragone R, Stiuso P, Colonna G
SPECIFIC INTERACTION BETWEEN CYCLOPHILIN AND CYCLIC-PEPTIDES (727 views)
Biopolymers (ISSN: 0006-3525, 0006-6352, 0006-3525print), 1995 Sep; 36(3): 273-281.
Impact Factor: 2.425
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67 Records (67 excluding Abstracts).
Total impact factor: 352.221 (352.221 excluding Abstracts).
Total 5 year impact factor: 361.122 (361.122 excluding Abstracts).
Total impact factor: 352.221 (352.221 excluding Abstracts).
Total 5 year impact factor: 361.122 (361.122 excluding Abstracts).
448 views. Last view on Friday 25 April 2025, 4:07:22
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