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Zdanowicz M, Mizielińska M, Kowalczyk A. Cast Extruded Films Based on Polyhydroxyalkanoate/Poly(lactic acid) Blend with Herbal Extracts Hybridized with Zinc Oxide. Polymers (Basel) 2024; 16:1954. [PMID: 39065276 PMCID: PMC11281330 DOI: 10.3390/polym16141954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Revised: 07/05/2024] [Accepted: 07/06/2024] [Indexed: 07/28/2024] Open
Abstract
The aim of the presented work was to functionalize a blend based on polyhydroxyalkanoate (PHA): poly(hydroxybutyrate (PHB) with poly(lactic acid) (PLA) and a mixture of three selected herb extracts, namely, Hypericum L., Urtica L. and Chelidonium L., (E), zinc oxide (ZnO) and a combined system (EZnO), produced via extrusion. Before processing with bioresin, the natural modifiers were characterized using thermal analysis, FTIR and antimicrobial tests. The results revealed interactions between the extracts and the filler, leading to higher thermal stability in EZnO than when using E alone. Moreover, the mixture of extracts exhibited antimicrobial properties toward both Gram-negative (S. aureus) as well as Gram-positive bacteria (E. coli). Modified regranulates were transformed into films by cast extrusion. The influence of the additives on thermal (DSC, TGA and OIT), mechanical, barrier (WVTR and OTR), morphological (FTIR) and optical properties was investigated. The EZnO additive had the highest impact on the mechanical, barrier (OTR and WVTR) and optical properties of the bioresin. The microbial test results revealed that PHA-EZnO exhibited higher activity than PHA-ZnO and PHA-E and also reduced the number of S. aureus, E. coli and C. albicans cells. The findings confirmed the synergistic effect between the additive components. Modified polyester films did not eliminate the phi6 bacteriophage particles completely, but they did decrease their number, confirming moderate antiviral effectiveness.
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Affiliation(s)
- Magdalena Zdanowicz
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Szczecin, Janickiego 35, 71-270 Szczecin, Poland;
| | - Małgorzata Mizielińska
- Center of Bioimmobilisation and Innovative Packaging Materials, Faculty of Food Sciences and Fisheries, West Pomeranian University of Technology, Szczecin, Janickiego 35, 71-270 Szczecin, Poland;
| | - Agnieszka Kowalczyk
- Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland;
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Zhang Q, Zhang C, Cao L, Wang Z, An B, Lin Z, Huang R, Zhang Z, Wang C, Lin W. Förster Energy Transport in Metal–Organic Frameworks Is Beyond Step-by-Step Hopping. J Am Chem Soc 2016; 138:5308-15. [DOI: 10.1021/jacs.6b01345] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Qiongqiong Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Cankun Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Lingyun Cao
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zi Wang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Bing An
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zekai Lin
- Department
of Chemistry, University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
| | - Ruiyun Huang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zhiming Zhang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Cheng Wang
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Wenbin Lin
- Collaborative
Innovation Center of Chemistry for Energy Materials, State Key Laboratory
of Physical Chemistry of Solid Surfaces, Department of Chemistry,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
- Department
of Chemistry, University of Chicago, 929 E 57th Street, Chicago, Illinois 60637, United States
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Ostroumov EE, Khan YR, Scholes GD, Govindjee. Photophysics of Photosynthetic Pigment-Protein Complexes. ADVANCES IN PHOTOSYNTHESIS AND RESPIRATION 2014. [DOI: 10.1007/978-94-017-9032-1_4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Wróbel D, Dudkowiak A, Goc J. Fluorescence Spectroscopy in Optoelectronics, Photomedicine, and Investigation of Biomolecular Systems. REVIEWS IN FLUORESCENCE 2008 2010. [DOI: 10.1007/978-1-4419-1260-2_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Siejak A, Wróbel D, Laskowska B, Avlasevich YS. Triplet behavior in weakly coupled chromophors in covalent pyridyl porphyrin-polymer systems. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2009; 74:148-153. [PMID: 19560396 DOI: 10.1016/j.saa.2009.05.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Revised: 05/06/2009] [Accepted: 05/18/2009] [Indexed: 05/28/2023]
Abstract
The photophysical properties of the 5-(4-pyridyl)-10,15,20-tri(4-methyloxyphenyl)porphyrins covalently linked to polyethylene glycol - PEG of different molecular weights (35000, 20000 and 8000) dissolved in dimethylsulfoxide were studied. The singlet and triplet states of the porphyrin species behavior were discussed in terms of fluorescence and thermal relaxation processes. The absorption, fluorescence and photothermal experiments showed that in the porphyrins linked to the PEG systems in dimethylsulfoxide the dye moieties occur in weakly interacting dimers. The triplet state enhancement in the 5-(4-pyridyl)-10,15,20-tri(4-methyloxyphenyl)porphyrins covalently linked to PEG was discussed. It was shown that even that the weak interaction of the porphyrin species in the covalent systems with PEG is not detectable by the absorption and only slightly by fluorescence, it is possible to be performed by the complementary spectroscopic methods like photoacoustics and photothermal time resolved spectroscopy.
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Affiliation(s)
- Aleksandra Siejak
- Institute of Physics, Poznan University of Technology, Nieszawska 13A, 60-965 Poznań, Poland
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Leiger K, Freiberg A, Dahlbom MG, Hush NS, Reimers JR. Pressure-induced spectral changes for the special-pair radical cation of the bacterial photosynthetic reaction center. J Chem Phys 2007; 126:215102. [PMID: 17567219 DOI: 10.1063/1.2739513] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The effect of pressure up to 6 kbars on the near to mid infrared absorption spectrum (7500-14,300 cm(-1) or 1333-700 nm) of the oxidized reaction center of Rhodobacter sphaeroides is measured and interpreted using density-functional B3LYP, INDO, and PM5 calculations. Two weak electronic transition origins at approximately 8010 and approximately 10,210 cm(-1) are unambiguously identified. The first transition is assigned to a Qy tripdoublet band that involves, in the localized description of the excitation, a triplet absorption on one of the bacteriochlorophyll molecules (PM) in the reaction center's special pair intensified by the presence of a radical cation on the other (PL). While most chlorophyll transition energies decrease significantly with increasing pressure, the tripdoublet band is found to be almost pressure insensitive. This difference is attributed to the additional increase in the tripdoublet-band energy accompanying compression of the pi-stacked special pair. The second band could either be the anticipated second Qy tripdoublet state, a Qx tripdoublet state, or a state involving excitation from a low-lying doubly occupied orbital to the half-occupied cationic orbital. A variety of absorption bands that are also resolved in the 8300-9600 cm(-1) region are assigned as vibrational structure associated with the first tripdoublet absorption. These sidebands are composites that are shown by the calculations to comprise many unresolved individual modes; while the calculated pressure sensitivity of each individual mode is small, the calculated pressure dependence of the combined sideband structure is qualitatively similar to the observed pressure dependence, preventing the positive identification of possible additional electronic transitions in this spectral region.
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Affiliation(s)
- Kristjan Leiger
- Institute of Physics, University of Tartu, Riia 142, 51014 Tartu, Estonia
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Tau P, Nyokong T. Spectroscopic characterisation and interactions of sulfonated titanium and tantalum phthalocyanines with methyl viologen. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.12.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Dahlbom MG, Reimers * JR. Successes and failures of time-dependent density functional theory for the low-lying excited states of chlorophylls. Mol Phys 2005. [DOI: 10.1080/00268970412331333528] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Boguta A, Wójcik A, Ion RM, Wróbel D. Photothermal methods as tools for investigation of weakly interacting non-fluorescent phthalocyanines. J Photochem Photobiol A Chem 2004. [DOI: 10.1016/s1010-6030(03)00445-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Wróbel D, Boguta A, Mazurkiewicz P. Non-radiative deactivation pathways of subphthalocyanine and subnaphthalocyanine dyes and of their mixture. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2003; 59:2841-2854. [PMID: 14499844 DOI: 10.1016/s1386-1425(03)00083-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Subphthalocyanine and subnaphthalocyanine dyes and their mixture were investigated by means of the spectroscopic and photoelectric methods. Absorption, fluorescence, steady-state and time-resolved photothermal measurements for the dyes and their mixture were done in order to get information about the radiative and non-radiative deactivation processes as competetive processes to charge separation. It was shown that energy transfer between the dyes improved the photocurrent generation in photoelectrochemical cells (PEC) based on In(2)O(3) and SnO(2) as an electrode. The possible participation of the dye triplet states in non-radiative processes was discussed.
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Affiliation(s)
- Danuta Wróbel
- Faculty of Technical Physics, Institute of Physics, Poznan University of Technology, Nieszawska 13A, 60-965 Poznan, Poland.
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Wróbel D. Organic photovoltaic solar cells: spectroscopic and photoelectric properties of photoactive dyes. CR CHIM 2003. [DOI: 10.1016/s1631-0748(03)00052-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Study of the influence of substituents on spectroscopic and photoelectric properties of zinc phthalocyanines. J Photochem Photobiol A Chem 2002. [DOI: 10.1016/s1010-6030(02)00132-6] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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van Zandvoort MAMJ, de Grauw CJ, Gerritsen HC, Broers JLV, oude Egbrink MGA, Ramaekers FCS, Slaaf DW. Discrimination of DNA and RNA in cells by a vital fluorescent probe: lifetime imaging of SYTO13 in healthy and apoptotic cells. CYTOMETRY 2002; 47:226-35. [PMID: 11933012 DOI: 10.1002/cyto.10076] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Of the few vital DNA and RNA probes, the SYTO dyes are the most specific for nucleic acids. However, they show no spectral contrast upon DNA or RNA binding. We show that fluorescence lifetime imaging using two-photon excitation of SYTO13 allows differential and simultaneous imaging of DNA and RNA in living cells, as well as sequential and repetitive assessment of staining patterns. METHODS Two-photon imaging of SYTO13 is combined with lifetime contrast, using time-gated detection. We focus on distinguishing DNA and RNA in healthy and apoptotic Chinese hamster ovary cells. RESULTS In healthy cells, SYTO13 has a fluorescence lifetime of 3.4 +/- 0.2 ns when associated with nuclear DNA. Bound to RNA, its lifetime is 4.1 +/- 0.1 ns. After induction of apoptosis, clusters of SYTO13 with fluorescence lifetime of 3.4 +/- 0.2 ns become apparent in the cytoplasm. They are identified as mitochondrial DNA on the basis of colocalization experiments with the DNA-specific dye, DRAQ5, and the mitochondrial-specific dye, CMXRos. Upon progression of apoptosis, the lifetime of SYTO13 attached to DNA shortens significantly, which is indicative of changes in the molecular environment of the dye. CONCLUSIONS We have characterized SYTO13 as a vital lifetime probe, allowing repetitive and differential imaging of DNA and RNA.
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Affiliation(s)
- Marc A M J van Zandvoort
- Department of Biophysics, Cardiovascular Research Institute Maastricht, University of Maastricht, Maastricht, The Netherlands.
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Photovoltaic effects in substituted metal-free and metallic sulfophthalocyanines in the photoelectrochemical cell. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00525-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Stomphorst RG, Schaafsma TJ, van der Zwan G. Spectral Effects of Excitonic Interactions in Disordered Solid Films. J Phys Chem A 2001. [DOI: 10.1021/jp004180a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Regien G. Stomphorst
- Molecular Physics Group, Department of Biomolecular Scieces, Agricultural University Wageningen, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, and Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Tjeerd J. Schaafsma
- Molecular Physics Group, Department of Biomolecular Scieces, Agricultural University Wageningen, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, and Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - G. van der Zwan
- Molecular Physics Group, Department of Biomolecular Scieces, Agricultural University Wageningen, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, and Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
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Stomphorst RG, van der Zwan G, van Zandvoort MAMJ, Sieval AB, Zuilhof H, Vergeldt FJ, Schaafsma TJ. Spectroscopic Study of Erythrosin B in PVA Films. J Phys Chem A 2001. [DOI: 10.1021/jp0041813] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Regien G. Stomphorst
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Gert van der Zwan
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Marc A. M. J. van Zandvoort
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Alexander B. Sieval
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Han Zuilhof
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Frank J. Vergeldt
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
| | - Tjeerd J. Schaafsma
- Molecular Physics Group, Department of Biomolecular Sciences, Wageningen University, Dreijenlaan 3, 6703 HA Wageningen, The Netherlands, Department of Analytical Chemistry and Applied Spectroscopy, Vrije Universiteit, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands, Debye Institute, Department of Molecular Biophysics, Utrecht University, Princetonplein 5, 3584 CC Utrecht, The Netherlands, and Laboratory of Organic Chemistry, Wageningen University, Dreijenlaan 8, 6703 HB Wageningen, The Netherlands
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Wróbel D, Boguta A, Ion RM. Mixtures of synthetic organic dyes in a photoelectrochemical cell. J Photochem Photobiol A Chem 2001. [DOI: 10.1016/s1010-6030(00)00377-4] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Arcioni A, van Zandvoort MAMJ, Bartolini P, Torre R, Tarroni R, Righini R, Zannoni C. Effective Shape and Dynamics of Chlorophyll a in a Nematic Liquid Crystal. J Phys Chem B 1998. [DOI: 10.1021/jp9726504] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alberto Arcioni
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Marc A. M. J. van Zandvoort
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Paolo Bartolini
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Renato Torre
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Riccardo Tarroni
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Roberto Righini
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
| | - Claudio Zannoni
- Dipartimento di Chimica Fisica e Inorganica, Università degli Studi di Bologna, Viale Risorgimento 4, I-40136 Bologna, Italy, LENS (European Laboratory for Non-linear Spectroscopy), Università, Largo E. Fermi 2, I-50125 Firenze, Italy, and Dipartimento di Chimica, Università, Via G. Capponi 9, I-50121 Firenze, Italy
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Verhagen JCD, van Zandvoort MAMJ, Vroom JM, Johansson LBÅ, van Ginkel G. Spectroscopic Properties of 2,5,8,11-Tetra-tert-butylperylene in Polymer Films. J Phys Chem B 1997. [DOI: 10.1021/jp972179e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. C. D. Verhagen
- Department of Molecular Biophysics, Debeye Institute, Buys Ballot Laboratory, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands, and Department of Physical Chemistry, University of Umeå, S-90187 Umeå, Sweden
| | - M. A. M. J. van Zandvoort
- Department of Molecular Biophysics, Debeye Institute, Buys Ballot Laboratory, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands, and Department of Physical Chemistry, University of Umeå, S-90187 Umeå, Sweden
| | - J. M. Vroom
- Department of Molecular Biophysics, Debeye Institute, Buys Ballot Laboratory, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands, and Department of Physical Chemistry, University of Umeå, S-90187 Umeå, Sweden
| | - L. B-Å. Johansson
- Department of Molecular Biophysics, Debeye Institute, Buys Ballot Laboratory, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands, and Department of Physical Chemistry, University of Umeå, S-90187 Umeå, Sweden
| | - G. van Ginkel
- Department of Molecular Biophysics, Debeye Institute, Buys Ballot Laboratory, Utrecht University, P.O. Box 80000, 3508 TA Utrecht, The Netherlands, and Department of Physical Chemistry, University of Umeå, S-90187 Umeå, Sweden
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Sanders R, Zandvoort MAMJ, Draaijer A, Levine YK, Gerritsen HC. Confocal Fluorescence Lifetime Imaging of Chlorophyll Molecules in Polymer Matrices. Photochem Photobiol 1996. [DOI: 10.1111/j.1751-1097.1996.tb01840.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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21
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Wróbei D, Zandvoort MAMJV, Lettinga P, Ginkel GV, Levine YK. CHLOROPHYLLS IN POLYMERS. II. PHEOPHYTIN a IN POLYMERS and THE INFLUENCE OF STRETCHING ON THE STATE OF CHLOROPHYLLS IN ANHYDROUS POLYMER FILMS. Photochem Photobiol 1995. [DOI: 10.1111/j.1751-1097.1995.tb05271.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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