1
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Sahoo DK, Dasgupta S, Kistwal T, Datta A. Fluorescence monitoring of binding of a Zn (II) complex of a Schiff base with human serum albumin. Int J Biol Macromol 2023; 226:1515-1522. [PMID: 36442551 DOI: 10.1016/j.ijbiomac.2022.11.263] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/19/2022] [Accepted: 11/24/2022] [Indexed: 11/27/2022]
Abstract
Zn (II) complexes of Schiff bases have potential applications in biomedical sciences as imaging agents, cancer therapeutics and diagnostics. Thus, it is important to understand their interaction with carrier proteins, like serum albumins. The present paper focuses on the binding interactions between Human serum albumin (HSA) and Znsalampy, making use of fluorescence spectroscopic techniques at ensemble as well as at single molecular level. An idea about the binding constant is obtained from the quenching of the single Trp (Tryptophan) residue of HSA by Znsalampy. Fluorescence correlation spectroscopy (FCS) has also been used to monitor the protein-ligand binding. The location of Znsalampy in its complex with HSA is determined by competitive binding experiments and molecular docking calculations. The binding constant obtained from the Znsalampy-HSA interaction falls in the ideal range for biological applications and the location is found to be in the proximity of Sudlow's site I. The esterase activity of HSA is retained in the presence of the Znsalampy. Hence, it is concluded that this Znsalampy may be a potential probe and biomarker in biomedical applications.
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Affiliation(s)
- Dipak Kumar Sahoo
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Souradip Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Tanuja Kistwal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
| | - Anindya Datta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India.
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2
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Choi J, Ahn M, Wee K, Cho DW. Photophysical properties of anti‐inflammatory piroxicam and its Cu(
II
) complex. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jungkweon Choi
- Center for Nanomaterials and Chemical Reactions Institute for Basic Science Daejeon Republic of Korea
- Department of Chemistry and KI for the BioCentury Korea Advanced Institute of Science and Technology (KAIST) Daejeon Republic of Korea
| | - Mina Ahn
- Department of Chemistry Daegu University Gyeongsan Republic of Korea
| | - Kyung‐Ryang Wee
- Department of Chemistry Daegu University Gyeongsan Republic of Korea
| | - Dae Won Cho
- Department of Advanced Materials Chemistry Korea University, Sejong Campus Sejong Korea
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3
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Dasgupta S, Banerjee S, Das S, Datta A. From fluorogens to fluorophores by elucidation and suppression of ultrafast excited state processes of a Schiff base. Phys Chem Chem Phys 2021; 23:19494-19502. [PMID: 34524318 DOI: 10.1039/d1cp02540f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Strategies have been explored for developing strongly fluorescent species out of a weakly fluorescent Schiff base, 2-(((pyridin-2-ylmethyl)imino)methyl)phenol (salampy). The locally excited enolic state of salampy undergoes an intramolecular proton transfer with a time constant of ca. 200 fs. The emissive cis keto state thus formed decays completely within 50 ps. Its fast decay and miniscule fluorescence quantum yield are attributed to efficient non-radiative channels associated with conformational relaxation. The anionic form, salampy-, has a significantly longer fluorescence lifetime of 800 ps. Its emissive state evolves in tens of picoseconds, from the locally excited state, by solvent and conformational relaxation. Both the neutral and anionic forms have a fluorescence lifetime of about 6 ns at 77 K, a temperature at which all activated nonradiative channels are blocked. This lifetime is similar to that obtained at room temperature, upon rigidification of the anion by complexation with Zn2+. Two such complexes have been studied. The first is binuclear, with acetate bridge between the two Zn2+ ions. The second, with ClO4- as the counterion, is mononuclear with two salampy ligands ligating the metal ion. Unlike a previous report on a different Schiff base, in which the ligands are π-stacked in its dimeric Zn2+ complex, no additional nonradiative deactivation pathway opens up in the Zn complexes of salampy, which are devoid of such stacking. The complex of salampy with Al3+ has an even longer fluorescence lifetime of 9 ns, indicating a greater degree of rigidification and consequent suppression of nonradiative processes.
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Affiliation(s)
- Souradip Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Shrobona Banerjee
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Rd, Bhauri, Madhya Pradesh 462066, India
| | - Sharmistha Das
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
| | - Anindya Datta
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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4
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Otarola J, Molina PG, Garrido M, Correa NM. Spectroscopic characterization and general features of piroxicam encapsulated in nanostructured lipid carriers. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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5
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Shaydyuk Y, Bashmakova NV, Dmytruk AM, Kachkovsky OD, Koniev S, Strizhak AV, Komarov IV, Belfield KD, Bondar MV, Babii O. Nature of Fast Relaxation Processes and Spectroscopy of a Membrane-Active Peptide Modified with Fluorescent Amino Acid Exhibiting Excited State Intramolecular Proton Transfer and Efficient Stimulated Emission. ACS OMEGA 2021; 6:10119-10128. [PMID: 34056166 PMCID: PMC8153670 DOI: 10.1021/acsomega.1c00193] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 02/25/2021] [Indexed: 06/12/2023]
Abstract
A fluorescently labeled peptide that exhibited fast excited state intramolecular proton transfer (ESIPT) was synthesized, and the nature of its electronic properties was comprehensively investigated, including linear photophysical and photochemical characterization, specific relaxation processes in the excited state, and its stimulated emission ability. The steady-state absorption, fluorescence, and excitation anisotropy spectra, along with fluorescence lifetimes and emission quantum yields, were obtained in liquid media and analyzed based on density functional theory quantum-chemical calculations. The nature of ESIPT processes of the peptide's chromophore moiety was explored using a femtosecond transient absorption pump-probe technique, revealing relatively fast ESIPT velocity (∼10 ps) in protic MeOH at room temperature. Efficient superluminescence properties of the peptide were realized upon femtosecond excitation in the main long-wavelength absorption band with a corresponding threshold of the pump pulse energy of ∼1.5 μJ. Quantum-chemical analysis of the electronic structure of the peptide was performed using the density functional theory/time-dependent density functional theory level of theory, affording good agreement with experimental data.
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Affiliation(s)
- Yevgeniy
O. Shaydyuk
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki 46, Kyiv 03028, Ukraine
| | - Nataliia V. Bashmakova
- Taras
Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Andriy M. Dmytruk
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki 46, Kyiv 03028, Ukraine
| | - Olexiy D. Kachkovsky
- V.P.
Kukhar Institute of Bioorganic Chemistry and Petrochemistry of the
National Academy of Sciences, Murmanskaya Street 1, Kyiv 02660, Ukraine
| | - Serhii Koniev
- Taras
Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | | | - Igor V. Komarov
- Taras
Shevchenko National University of Kyiv, Volodymyrska Street 60, Kyiv 01601, Ukraine
| | - Kevin D. Belfield
- New
Jersey Institute of Technology, College of Science and Liberal Arts, University Heights, Newark, New Jersey 07102, United States
| | - Mykhailo V. Bondar
- Institute
of Physics National Academy of Sciences of Ukraine, Prospect Nauki 46, Kyiv 03028, Ukraine
| | - Oleg Babii
- Institute
of Biological Interfaces (IBG-2), Karlsruhe
Institute of Technology (KIT), POB3640, Karlsruhe 76021, Germany
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6
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Caballero‐Mancebo E, Cohen B, Smolders S, De Vos DE, Douhal A. Unravelling Why and to What Extent the Topology of Similar Ce-Based MOFs Conditions their Photodynamic: Relevance to Photocatalysis and Photonics. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1901020. [PMID: 31592140 PMCID: PMC6774026 DOI: 10.1002/advs.201901020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 07/13/2019] [Indexed: 05/15/2023]
Abstract
Metal-organic frameworks (MOFs) are emerging materials for luminescent and photochemical applications. Armed with femto to millisecond spectroscopies, and fluorescence microscopy, the photobehaviors of two Ce-based MOFs are unravelled: Ce-NU-1000 and Ce-CAU-24-TBAPy. It is observed that both MOFs show ligand-to-cluster charge transfer reactions in ≈100 and ≈70 fs for Ce-NU-1000 and Ce-CAU-24-TBAPy, respectively. The formed charge separated states, resulting in electron and hole generation, recombine in different times for each MOF, being longer in Ce-CAU-24-TBAPy: 1.59 and 13.43 µs than in Ce-NU-1000: 0.64 and 4.91 µs. The linkers in both MOFs also undergo a very fast intramolecular charge transfer reaction in ≈160 fs. Furthermore, the Ce-NU-1000 MOF reveals excimer formation in 50 ps, and lifetime of ≈14 ns. The lack of this interlinkers event in Ce-CAU-24-TBAPy arises from topological restriction and demonstrates the structural differences between the two frameworks. Single-crystal fluorescence microscopy of Ce-CAU-24-TBAPy shows the presence of a random distribution of defects along the whole crystal, and their impact on the observed photobehavior. These findings reflect the effect of linkers topology and metal clusters orientations on the outcome of electronic excitation of reticular structure, key to their applicability in different fields of science and technology, such as photocatalysis and photonics.
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Affiliation(s)
- Elena Caballero‐Mancebo
- Departamento de Química FísicaFacultad de Ciencias Ambientales y Bioquímica, and INAMOLUniversidad de Castilla‐La ManchaAvenida Carlos III, S/N45071ToledoSpain
| | - Boiko Cohen
- Departamento de Química FísicaFacultad de Ciencias Ambientales y Bioquímica, and INAMOLUniversidad de Castilla‐La ManchaAvenida Carlos III, S/N45071ToledoSpain
| | - Simon Smolders
- Centre for Membrane Separations, Adsorption Catalysis and Spectroscopy for Sustainable SolutionsDepartment MSKU LeuvenCelestijnenlaan 200F P.O. Box 24543001LeuvenBelgium
| | - Dirk E. De Vos
- Centre for Membrane Separations, Adsorption Catalysis and Spectroscopy for Sustainable SolutionsDepartment MSKU LeuvenCelestijnenlaan 200F P.O. Box 24543001LeuvenBelgium
| | - Abderrazzak Douhal
- Departamento de Química FísicaFacultad de Ciencias Ambientales y Bioquímica, and INAMOLUniversidad de Castilla‐La ManchaAvenida Carlos III, S/N45071ToledoSpain
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7
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Gutierrez M, Cohen B, Sánchez F, Douhal A. Photochemistry of Zr-based MOFs: ligand-to-cluster charge transfer, energy transfer and excimer formation, what else is there? Phys Chem Chem Phys 2018; 18:27761-27774. [PMID: 27731427 DOI: 10.1039/c6cp03791g] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Understanding of the photocatalytic behaviour of Zr-based MOFs is fundamental for the improved design of new and more efficient photocatalysts. The present work describes steady-state and photodynamical studies on the behavior of two MOFs: Zr-2,6-naphthalene dicarboxylate (Zr-NDC) and Zr-4-amino-2,6-naphthalene dicarboxylate (Zr-NADC, 65% NDC/35% NADC) in dichloromethane (DCM) and N,N-dimethylformamide (DMF) suspensions. In the DMF suspension, the Zr-NDC MOF exhibits excimer formation in 280 ps due to the interactions between neighboring linkers. Using the femtosecond transient absorption (fs-TA) technique we have found that the Zr-NADC MOF exhibits a ligand-to-cluster charge transfer (LCCT) event in ∼170 and <100 fs in DMF and DCM, respectively. The Zr-NDC MOF shows similar LCCT in <100 fs in both solvents. The Zr-NADC MOF in DMF suspension shows an energy transfer (ET) from the excited NDC linkers to the NADC ones in 1.1 ps. Flash photolysis experiments demonstrate dominant radiative electron-hole (e--h+) recombination from two different trap states in 310 ns and 1.3 μs, and 32 ns and 1.0 μs in the photoexcited Zr-NADC and Zr-NDC MOFs in DMF, respectively. Excitation of the NDC linkers in the Zr-NADC and Zr-NDC MOFs in DCM allows for the characterization of the dynamics associated with the charge-separated state and the non-radiative recombination from the trap states (45 ns and 0.3 μs). Direct excitation of the NADC linkers (410 nm) in the Zr-NADC MOF in DCM suspension produces a radiative (e--h+) recombination in 3.5 μs. Further experiments in the presence of electron donor (N,N,N',N'-tetramethyl-p-phenylenediamine, TMPD) and acceptor (methyl viologen, MV2+) molecules corroborate the formation of charge separated states in these MOFs. These findings are relevant for understanding the photocatalytic and photonic behaviours of these MOFs.
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Affiliation(s)
- Mario Gutierrez
- Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071 Toledo, Spain.
| | - Boiko Cohen
- Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071 Toledo, Spain.
| | - Félix Sánchez
- Instituto de QuímicaOrgánica, CSIC, Juan de la Cierva, 3, 28006 Madrid, Spain
| | - Abderrazzak Douhal
- Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071 Toledo, Spain.
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8
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Ivanova D, Deneva V, Nedeltcheva D, Kamounah FS, Gergov G, Hansen PE, Kawauchi S, Antonov L. Tautomeric transformations of piroxicam in solution: a combined experimental and theoretical study. RSC Adv 2015. [DOI: 10.1039/c5ra03653d] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Piroxicam tautomerism was studied in solution. Enol-amide tautomer is presented mainly as a sandwich type dimer in ethanol and DMSO. The addition of water leads to gradual shift of the equilibrium towards the zwitterionic tautomer.
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Affiliation(s)
- D. Ivanova
- Institute of Organic Chemistry with Centre of Phytochemistry
- Bulgarian Academy of Sciences
- BG-1113 Sofia
- Bulgaria
- Faculty of Pharmacy
| | - V. Deneva
- Institute of Organic Chemistry with Centre of Phytochemistry
- Bulgarian Academy of Sciences
- BG-1113 Sofia
- Bulgaria
| | - D. Nedeltcheva
- Institute of Organic Chemistry with Centre of Phytochemistry
- Bulgarian Academy of Sciences
- BG-1113 Sofia
- Bulgaria
| | - F. S. Kamounah
- Department of Science
- Systems and Models
- Roskilde University
- DK-4000 Roskilde
- Denmark
| | - G. Gergov
- Faculty of Pharmacy
- Medical University of Sofia
- BG-1000 Sofia
- Bulgaria
| | - P. E. Hansen
- Department of Science
- Systems and Models
- Roskilde University
- DK-4000 Roskilde
- Denmark
| | - S. Kawauchi
- Tokyo Institute of Technology
- Department of Organic and Polymeric Materials
- Tokyo 152-8552
- Japan
| | - L. Antonov
- Institute of Organic Chemistry with Centre of Phytochemistry
- Bulgarian Academy of Sciences
- BG-1113 Sofia
- Bulgaria
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9
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Martin C, Cohen B, Gaamoussi I, Ijjaali M, Douhal A. Ultrafast Dynamics of C30 in Solution and within CDs and HSA Protein. J Phys Chem B 2014; 118:5760-71. [DOI: 10.1021/jp5026575] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Cristina Martin
- Departamento
de Química Física, Facultad de Ciencias Ambientales
y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
| | - Boiko Cohen
- Departamento
de Química Física, Facultad de Ciencias Ambientales
y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
| | - Issam Gaamoussi
- Departamento
de Química Física, Facultad de Ciencias Ambientales
y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
- Laboratorie
de Chimie de la Matière Condensée, Faculté des
Sciences et Techniques, University of Sidi Mohamed Ben Abdellah, Fez, Morocco 2202
| | - Mustapha Ijjaali
- Laboratorie
de Chimie de la Matière Condensée, Faculté des
Sciences et Techniques, University of Sidi Mohamed Ben Abdellah, Fez, Morocco 2202
| | - Abderrazzak Douhal
- Departamento
de Química Física, Facultad de Ciencias Ambientales
y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S/N, 45071 Toledo, Spain
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10
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Carmona NA, Cohen B, Organero JA, Douhal A. Excited state intermolecular proton and energy transfer of 1-hydroxypyrene interacting with the human serum albumin protein. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.10.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Ultrafast dynamics of lumichrome in solution and in chemical and biological caging media. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.01.017] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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12
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Ziółek M, Cohen B, Yang X, Sun L, Paulose M, Varghese OK, Grimes CA, Douhal A. Femtosecond to millisecond studies of electron transfer processes in a donor–(π-spacer)–acceptor series of organic dyes for solar cells interacting with titania nanoparticles and ordered nanotube array films. Phys Chem Chem Phys 2012; 14:2816-31. [DOI: 10.1039/c2cp23825j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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de Miguel G, Marchena M, Zitnan M, Pandey SS, Hayase S, Douhal A. Femto to millisecond observations of indole-based squaraine molecules photodynamics in solution. Phys Chem Chem Phys 2012; 14:1796-805. [DOI: 10.1039/c1cp22864a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Ziółek M, Tacchini I, Martínez MT, Yang X, Sun L, Douhal A. A photo-induced electron transfer study of an organic dye anchored on the surfaces of TiO2 nanotubes and nanoparticles. Phys Chem Chem Phys 2011; 13:4032-44. [DOI: 10.1039/c0cp01898h] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Ida A, Cohen B, Asaka T, Kawai A, Organero JA, Shibuya K, Douhal A. Isomerization dynamics of the 2-phenylazo-1,3-dimethylimidazolium cation photoexcited to the S2 (π, π*) state as studied by transient absorption spectroscopy in the time domain of 10−13 to 103 seconds. Phys Chem Chem Phys 2011; 13:20318-25. [DOI: 10.1039/c1cp22095k] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Cohen B, Organero JA, Santos L, Rodriguez Padial L, Douhal A. Exploring the Ground and Excited States Structural Diversity of Levosimendan, a Cardiovascular Calcium Sensitizer. J Phys Chem B 2010; 114:14787-95. [DOI: 10.1021/jp105343f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boiko Cohen
- Departamento de Química Física, Sección de Químicas, Facultad del Medio Ambiente and INAMOL, Universidad de Castilla-La Mancha, Carlos III S/N 45071 Toledo, Spain, Departamento de Quimica Fisica, Facultad de Quimicas, Avenida Camilo José Cela, s/n Universidad de Castilla−La Mancha, 13071, Ciudad Real, and Servicios de Cardiologia, Hospital Virgen de la Salud, Avenida Barber 30, 45004, Toledo, Spain
| | - Juan Angel Organero
- Departamento de Química Física, Sección de Químicas, Facultad del Medio Ambiente and INAMOL, Universidad de Castilla-La Mancha, Carlos III S/N 45071 Toledo, Spain, Departamento de Quimica Fisica, Facultad de Quimicas, Avenida Camilo José Cela, s/n Universidad de Castilla−La Mancha, 13071, Ciudad Real, and Servicios de Cardiologia, Hospital Virgen de la Salud, Avenida Barber 30, 45004, Toledo, Spain
| | - Lucia Santos
- Departamento de Química Física, Sección de Químicas, Facultad del Medio Ambiente and INAMOL, Universidad de Castilla-La Mancha, Carlos III S/N 45071 Toledo, Spain, Departamento de Quimica Fisica, Facultad de Quimicas, Avenida Camilo José Cela, s/n Universidad de Castilla−La Mancha, 13071, Ciudad Real, and Servicios de Cardiologia, Hospital Virgen de la Salud, Avenida Barber 30, 45004, Toledo, Spain
| | - Luis Rodriguez Padial
- Departamento de Química Física, Sección de Químicas, Facultad del Medio Ambiente and INAMOL, Universidad de Castilla-La Mancha, Carlos III S/N 45071 Toledo, Spain, Departamento de Quimica Fisica, Facultad de Quimicas, Avenida Camilo José Cela, s/n Universidad de Castilla−La Mancha, 13071, Ciudad Real, and Servicios de Cardiologia, Hospital Virgen de la Salud, Avenida Barber 30, 45004, Toledo, Spain
| | - Abderrazzak Douhal
- Departamento de Química Física, Sección de Químicas, Facultad del Medio Ambiente and INAMOL, Universidad de Castilla-La Mancha, Carlos III S/N 45071 Toledo, Spain, Departamento de Quimica Fisica, Facultad de Quimicas, Avenida Camilo José Cela, s/n Universidad de Castilla−La Mancha, 13071, Ciudad Real, and Servicios de Cardiologia, Hospital Virgen de la Salud, Avenida Barber 30, 45004, Toledo, Spain
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17
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El-Kemary M, Yao H. Synthesis, characterization and optical properties of organic nanoparticles of piroxicam anti-inflammatory drug. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.04.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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18
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Ziółek M, Gil M, Organero JA, Douhal A. What is the difference between the dynamics of anion- and keto-type of photochromic salicylaldehyde azine? Phys Chem Chem Phys 2010; 12:2107-15. [DOI: 10.1039/b920951d] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Gil M, Douhal A. Femtosecond Dynamics of Piroxicam Structures in Solutions. J Phys Chem A 2008; 112:8231-7. [DOI: 10.1021/jp803457e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michał Gil
- Departamento de Química Física, Sección de Químicas, Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071, Toledo, Spain
| | - Abderrazzak Douhal
- Departamento de Química Física, Sección de Químicas, Facultad de Ciencias del Medio Ambiente, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071, Toledo, Spain
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