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Ezquerra Riega SD, Gutierrez Suburu ME, Rodríguez HB, Lantaño B, Kleinschmidt M, Marian CM, Strassert CA. A Case-Study on the Photophysics of Chalcogen-Substituted Zinc(II) Phthalocyanines. Chemistry 2024; 30:e202304083. [PMID: 38647352 DOI: 10.1002/chem.202304083] [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: 12/07/2023] [Indexed: 04/25/2024]
Abstract
Singlet dioxygen has been widely applied in different disciplines such as medicine (photodynamic therapy or blood sterilization), remediation (wastewater treatment) or industrial processes (fine chemicals synthesis). Particularly, it can be conveniently generated by energy transfer between a photosensitizer's triplet state and triplet dioxygen upon irradiation with visible light. Among the best photosensitizers, substituted zinc(II) phthalocyanines are prominent due to their excellent photophysical properties, which can be tuned by structural modifications, such as halogen- and chalcogen-atom substitution. These patterns allow for the enhancement of spin-orbit coupling, commonly attributed to the heavy atom effect, which correlates with the atomic number ( Z ${Z}$ ) and the spin-orbit coupling constant ( ζ ${\zeta }$ ) of the introduced heteroatom. Herein, a fully systematic analysis of the effect exerted by chalcogen atoms on the photophysical characteristics (absorption and fluorescence properties, lifetimes and singlet dioxygen photogeneration), involving 30 custom-made β-tetrasubstituted chalcogen-bearing zinc(II) phthalocyanines is described and evaluated regarding the heavy atom effect. Besides, the intersystem crossing rate constants are estimated by several independent methods and a quantitative profile of the heavy atom is provided by using linear correlations between relative intersystem crossing rates and relative atomic numbers. Good linear trends for both intersystem crossing rates (S1-T1 and T1-S0) were obtained, with a dependency on the atomic number and the spin-orbit coupling constant scaling asZ 0 . 4 ${{Z}^{0.4}}$ andζ 0 . 2 ${{\zeta }^{0.2}}$ , respectively The trend shows to be independent of the solvent and temperature.
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Affiliation(s)
- Sergio D Ezquerra Riega
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Junín 956, C1113AAD, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Tecnología Farmacéutica y Biofarmacia (InTecFyB), Junín 956, C1113AAD, Buenos Aires, Argentina
- CONICET - Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE); Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, UBA., Ciudad Universitaria Pab. II, C1428EHA, Buenos Aires, Argentina
| | - Matías E Gutierrez Suburu
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, D-48149, Münster, Germany
- CeNTech, SoN, CiMIC, Universität Münster, Heisenbergstraße 11, D-48149, Münster, Germany
| | - Hernán B Rodríguez
- CONICET - Universidad de Buenos Aires, Instituto de Química Física de los Materiales, Medio Ambiente y Energía (INQUIMAE); Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, UBA., Ciudad Universitaria Pab. II, C1428EHA, Buenos Aires, Argentina
| | - Beatriz Lantaño
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Junín 956, C1113AAD, Buenos Aires, Argentina
- Universidad de Buenos Aires, Instituto de Tecnología Farmacéutica y Biofarmacia (InTecFyB), Junín 956, C1113AAD, Buenos Aires, Argentina
| | - Martin Kleinschmidt
- Institut für Theoretische Chemie und Computerchemie, Fakultät für Mathematik und Naturwissenschaften, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Christel M Marian
- Institut für Theoretische Chemie und Computerchemie, Fakultät für Mathematik und Naturwissenschaften, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225, Düsseldorf, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, D-48149, Münster, Germany
- CeNTech, SoN, CiMIC, Universität Münster, Heisenbergstraße 11, D-48149, Münster, Germany
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Sailaja STN, Maisuls I, Hepp A, Brünink D, Doltsinis NL, Faust A, Hermann S, Strassert CA. Dual Emissive Zn(II) Naphthalocyanines: Synthesis, Structural and Photophysical Characterization with Theory-Supported Insights towards Soluble Coordination Compounds with Visible and Near-Infrared Emission. Int J Mol Sci 2024; 25:2605. [PMID: 38473852 DOI: 10.3390/ijms25052605] [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: 12/31/2023] [Revised: 02/09/2024] [Accepted: 02/14/2024] [Indexed: 03/14/2024] Open
Abstract
Metal phthalocyaninates and their higher homologues are recognized as deep-red luminophores emitting from their lowest excited singlet state. Herein, we report on the design, synthesis, and in-depth characterization of a new class of dual-emissive (visible and NIR) metal naphthalocyaninates. A 4-N,N-dimethylaminophen-4-yl-substituted naphthalocyaninato zinc(II) complex (Zn-NMe2Nc) and the derived water-soluble coordination compound (Zn-NMe3Nc) exhibit a near-infrared fluorescence from the lowest ligand-centered state, along with a unique push-pull-supported luminescence in the visible region of the electromagnetic spectrum. An unprecedentedly broad structural (2D-NMR spectroscopy and mass spectrometry) as well as photophysical characterization (steady-state state and time-resolved photoluminescence spectroscopy) is presented. The unique dual emission was assigned to two independent sets of singlet states related to the intrinsic Q-band of the macrocycle and to the push-pull substituents in the molecular periphery, respectively, as predicted by TD-DFT calculations. In general, the elusive chemical aspects of these macrocyclic compounds are addressed, involving both reaction conditions, thorough purification, and in-depth characterization. Besides the fundamental aspects that are investigated herein, the photoacoustic properties were exemplarily examined using phantom gels to assess their tomographic imaging capabilities. Finally, the robust luminescence in the visible range arising from the push-pull character of the peripheral moieties demonstrated a notable independence from aggregation and was exemplarily implemented for optical imaging (FLIM) through time-resolved multiphoton micro(spectro)scopy.
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Affiliation(s)
- Sidharth Thulaseedharan Nair Sailaja
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Iván Maisuls
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
| | - Dana Brünink
- Institute for Solid State Theory and Center for Multiscale Theory and Computation, Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Nikos L Doltsinis
- Institute for Solid State Theory and Center for Multiscale Theory and Computation, Universität Münster, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Andreas Faust
- European Institute for Molecular Imaging, Universität Münster, Röntgenstraße 16, 48149 Münster, Germany
- Department of Nuclear Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging, Universität Münster, Röntgenstraße 16, 48149 Münster, Germany
- Department of Nuclear Medicine, University Hospital Münster, Albert-Schweitzer-Campus 1, 48149 Münster, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
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Sowa A, Höing A, Dobrindt U, Knauer SK, Galstyan A, Voskuhl J. Umbelliferone Decorated Water-soluble Zinc(II) Phthalocyanines - In Vitro Phototoxic Antimicrobial Anti-cancer Agents. Chemistry 2021; 27:14672-14680. [PMID: 34324228 PMCID: PMC8596868 DOI: 10.1002/chem.202102255] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Indexed: 11/10/2022]
Abstract
In this contribution we report on the synthesis, characterization and application of water-soluble zinc(II) phthalocyanines, which are decorated with four or eight umbelliferone moieties for photodynamic therapy (PDT). These compounds are linked peripherally to zinc(II) phthalocyanine by a triethylene glycol linker attached to pyridines, leading to cationic pyridinium units, able to increase the water solubility of the system. Beside their photophysical properties they were analyzed concerning their cellular distribution in human hepatocyte carcinoma (HepG2) cells as well as their phototoxicity towards HepG2 cells, Gram-positive (S. aureus strain 3150/12 and B. subtilis strain DB104) and Gram-negative bacteria (E. coli strain UTI89 and E. coli strain Nissle 1917). At low light doses and concentrations, they exhibit superb antimicrobial activity against Gram-positive bacteria as well as anti-tumor activity against HepG2. They are even capable to inactivate Gram-negative bacteria, whereas the dark toxicity remains low. These unique water-soluble compounds can be regarded as all-in-one type photosensitizers with broad applications ranges in the future.
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Affiliation(s)
- Andrea Sowa
- Institute of Chemistry (Organic chemistry)University of Duisburg-EssenUniversitätsstraße 745117EssenGermany
| | - Alexander Höing
- Department of Molecular Biology II Center for Medical Biotechnology (ZMB)University of Duisburg-EssenUniversitätsstrasse 545117EssenGermany
| | - Ulrich Dobrindt
- Institute of HygieneWestfälische Wilhelms-Universität MünsterMendelstraße 748149MünsterGermany
| | - Shirley K. Knauer
- Department of Molecular Biology II Center for Medical Biotechnology (ZMB)University of Duisburg-EssenUniversitätsstrasse 545117EssenGermany
| | - Anzhela Galstyan
- Center for Soft NanoscienceWestfälische Wilhelms-Universität MünsterBusso-Peus-Straße 1048149MünsterGermany
| | - Jens Voskuhl
- Institute of Chemistry (Organic chemistry)University of Duisburg-EssenUniversitätsstraße 745117EssenGermany
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Synthesis, characterization, and investigation of photochemical properties of tetra-substituted zinc phthalocyanines bearing 4-(3,5-dimethyl-1H-pyrazol-1-yl)phenyl moiety with different linker heteroatoms. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2(3), 9(10), 16(17), 23(24)-tetrakis[(3-mercapto)propoxy] phthalocyaninate zinc (II)/gold nanoparticle conjugates: Synthesis and photophysical properties. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2018.09.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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6
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Absorption and Photo-Stability of Substituted Dibenzoylmethanes and Chalcones as UVA Filters. COSMETICS 2018. [DOI: 10.3390/cosmetics5020033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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Grüner MC, Niemann S, Faust A, Strassert CA. Axially Decorated Si IV -phthalocyanines Bearing Mannose- or Ammonium-conjugated Siloxanes: Comparative Bacterial Labeling and Photodynamic Inactivation<sup/>. Photochem Photobiol 2018; 94:890-899. [PMID: 29285780 DOI: 10.1111/php.12881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 11/30/2017] [Indexed: 01/01/2023]
Abstract
Herein, we present a comparative study about the photoinactivation of Staphylococcus aureus (Gram-positive model) and Escherichia coli (Gram-negative model) employing a neutral and a dicationic axially functionalized SiIV -phthalocyanine. Depending on the charge of the siloxane moiety (neutral monosaccharide or cationic ammonium salt), different interactions with the bacteria were observed, and a differential photoinactivation was facilitated. The intensity of the fluorescence labeling correlated with the photoinactivation of the two types of bacteria: While the neutral species only significantly affected the Gram-positive cells, we observed that the positively charged photosensitizer interacted both with the Gram-positive and with the Gram-negative models. The dicationic photosensitizer labeled both models with a characteristic deep-red fluorescence and photoinactivated both classes of prokaryotes. In general, our study clearly demonstrates that axially ammoniumsiloxane-functionalized Si(IV) phthalocyaninates constitute excellent photosensitizers due to their weak aggregation in aqueous environments. In particular, we also show that charge-based targeting with axial ammonium groups leads toward broad-spectrum SiIV -phthalocyanines for photodynamic inactivation of bacteria.
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Affiliation(s)
- Malte C Grüner
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, Münster, Germany.,Instituto de Física de São Carlos, Universidade de São Paulo (IFSC/USP), São Carlos, Brazil
| | - Silke Niemann
- Institut für Medizinische Mikrobiologie, Universitätsklinikum Münster, Münster, Germany
| | - Andreas Faust
- European Institute for Molecular Imaging, Münster, Germany
| | - Cristian A Strassert
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, Münster, Germany
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Barbosa M, Parra G, Correa R, Sampaio R, Magno L, Silva R, Doriguetto A, Ellena J, Neto NB, Batista A, Gonçalves P. Reactive nitrogen/oxygen species production by nitro/nitrosyl supramolecular ruthenium porphyrin complexes. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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9
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Liu K, Wang X, Ntziachristos V, Marsch S, Hunziker P. Polymeric nanosystems for near-infrared multispectral photoacoustic imaging: Synthesis, characterization and in vivo evaluation. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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10
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Convenient synthesis of novel unmetalled and metallophthalocyanines bearing coumarin derivatives: synthesis, characterization, aggregation behaviors and antimicrobial activity. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0655-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Galstyan A, Kauscher U, Block D, Ravoo BJ, Strassert CA. Silicon(IV) Phthalocyanine-Decorated Cyclodextrin Vesicles as a Self-Assembled Phototherapeutic Agent against MRSA. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12631-12637. [PMID: 27098069 DOI: 10.1021/acsami.6b02132] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The host-guest complexation of a tailored Si(IV) phthalocyanine with supramolecular β-cyclodextrin vesicles (CDV) was studied, revealing a reduced aggregation of the photoactive center upon binding to the CDV, even in aqueous environments. For this purpose, a photosensitizing unit axially decorated with one adamantyl group and one pyridinium moiety on the other side was obtained by two successive click reactions on a bis-azido-functionalized derivative of Si(IV) phthalocyanine. To evaluate its potential as a photosensitizer against antibiotic-resistant bacteria, comparative studies of the photophysical properties including absorption and emission spectroscopy, lifetimes as well as fluorescence and singlet oxygen quantum yields were determined for the Si(IV) phthalocyanine alone and upon self-assembly on the CDV surface. In vitro phototoxicity against the methicillin-resistant Staphylococcus aureus (MRSA) USA300 was evaluated, showing an almost complete inactivation.
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Affiliation(s)
- Anzhela Galstyan
- Physikalisches Institut and CeNTech, Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11, 48149 Münster, Germany
- European Institute for Molecular Imaging , Waldeyerstrasse 15, 48149 Münster, Germany
| | - Ulrike Kauscher
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany
| | - Desiree Block
- Institute for Medical Microbiology, University Hospital Münster , Domagkstrasse 10, 48149 Münster, Germany
| | - Bart Jan Ravoo
- Organic Chemistry Institute, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany
| | - Cristian A Strassert
- Physikalisches Institut and CeNTech, Westfälische Wilhelms-Universität Münster , Heisenbergstrasse 11, 48149 Münster, Germany
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12
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Galstyan A, Block D, Niemann S, Grüner MC, Abbruzzetti S, Oneto M, Daniliuc CG, Hermann S, Viappiani C, Schäfers M, Löffler B, Strassert CA, Faust A. Labeling and Selective Inactivation of Gram-Positive Bacteria Employing Bimodal Photoprobes with Dual Readouts. Chemistry 2016; 22:5243-52. [PMID: 26929124 DOI: 10.1002/chem.201504935] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Indexed: 01/17/2023]
Abstract
Carbohydrate-conjugated silicon(IV) phthalocyanines with bimodal photoactivity were developed as probes with both fluorescent labeling and photosensitizing capabilities, and the concomitant fluorescent labeling and photoinduced inactivation of Gram-positive and Gram-negative models was explored. The maltohexaose-conjugated photoprobe provides a dual readout to distinguish between both groups of pathogens, as only the Gram-positive species was inactivated, even though both appeared labeled with near-infrared luminescence. Antibiotic resistance did not hinder the phototoxic effect, as even the methicillin-resistant pathogen Staphylococcus aureus (MRSA) was completely photoinactivated. Time-resolved confocal fluorescence microscopy analysis suggests that the photoprobe sticks onto the outer rim of the microorganisms, explaining the resistance of Gram-negative species on the basis of their membrane constitution. The mannose-conjugated photoprobe yields a different readout because it is able to label and to inactivate only the Gram-positive strain.
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Affiliation(s)
- Anzhela Galstyan
- European Institute for Molecular Imaging, Waldeyerstr. 15, 48149, Münster, Germany. .,Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, Heisenbergstr. 11, 48149, Münster, Germany.
| | - Desiree Block
- Institut für Medizinische Mikrobiologie, Universitätsklinikum Münster, Domagkstr. 10, 48149, Münster, Germany
| | - Silke Niemann
- Institut für Medizinische Mikrobiologie, Universitätsklinikum Münster, Domagkstr. 10, 48149, Münster, Germany
| | - Malte C Grüner
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, Heisenbergstr. 11, 48149, Münster, Germany
| | - Stefania Abbruzzetti
- Dip. di Bioscienze Università degli Studi di Parma, NEST, Istituto Nanoscienze CNR, viale delle Scienze 11A, 43124, Parma, Italia
| | - Michele Oneto
- Fondazione Istituto Italiano di Tecnologia, Via Morego, 30, 16163, Genova, Italy
| | - Constantin G Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstr. 40, 48149, Münster, Germany
| | - Sven Hermann
- European Institute for Molecular Imaging, Waldeyerstr. 15, 48149, Münster, Germany
| | - Cristiano Viappiani
- Dip. di Fisica e Scienze della Terra, Università degli Studi di Parma, NEST, Istituto Nanoscienze CNR, viale delle Scienze 7A, 43124, Parma, Italia
| | - Michael Schäfers
- European Institute for Molecular Imaging, Waldeyerstr. 15, 48149, Münster, Germany.,Klinik für Nuklearmedizin, Universitätsklinikum Münster, Albert Schweitzer-Campus 1, 48149, Münster, Germany
| | - Bettina Löffler
- Institut für Medizinische Mikrobiologie, Universitätsklinikum Jena, Erlanger Allee 101, 07747, Jena, Germany
| | - Cristian A Strassert
- Physikalisches Institut and Center for Nanotechnology (CeNTech), Westfälische Wilhelms-Universität Münster, Heisenbergstr. 11, 48149, Münster, Germany.
| | - Andreas Faust
- European Institute for Molecular Imaging, Waldeyerstr. 15, 48149, Münster, Germany.
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Diz V, Leyva G, Zysler R, Awruch J, Dicelio L. Photophysics of an octasubstituted zinc(II) phthalocyanine incorporated into solid polymeric magnetic and non-magnetic PLGA–PVA nanoparticles. J Photochem Photobiol A Chem 2016. [DOI: 10.1016/j.jphotochem.2015.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Affiliation(s)
- Vânia F. Pais
- CIQSO–Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry, and Organic Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
| | - Eliana F.A. Carvalho
- Department of Chemistry & QOPNA, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - João P.C. Tomé
- Department of Chemistry & QOPNA, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
- Department of Organic Chemistry, Ghent University, Krijgslaan 281 S4, B-9000 Gent, Belgium
| | - Uwe Pischel
- CIQSO–Center for Research in Sustainable Chemistry and Department of Chemical Engineering, Physical Chemistry, and Organic Chemistry, University of Huelva, Campus de El Carmen s/n, E-21071 Huelva, Spain
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15
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Grüner M, Siozios V, Hagenhoff B, Breitenstein D, Strassert CA. Structural and Photosensitizing Features of Phthalocyanine-Zeolite Hybrid Nanomaterials. Photochem Photobiol 2013; 89:1406-12. [DOI: 10.1111/php.12141] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Accepted: 07/03/2013] [Indexed: 01/02/2023]
Affiliation(s)
- Malte Grüner
- CeNTech; Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Münster Germany
| | - Vassilios Siozios
- MEET; Institut für Physikalische Chemie; Westfälische Wilhelms-Universität Münster; Münster Germany
| | | | | | - Cristian A. Strassert
- CeNTech; Physikalisches Institut; Westfälische Wilhelms-Universität Münster; Münster Germany
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16
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Yağcı Ç, Bilgin A. Synthesis, characterization, aggregation, fluorescence, electrical and thermal properties of novel octasubstituted metal-free and metallophthalocyanines. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.12.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Gauna GA, Cobice D, Awruch J. Efficient diborane-mediated synthesis of phthalocyanines carrying amino groups near the macrocycle. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.07.089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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García Vior MC, Marino J, Roguin LP, Sosnik A, Awruch J. Photodynamic effects of zinc(II) phthalocyanine-loaded polymeric micelles in human nasopharynx KB carcinoma cells. Photochem Photobiol 2012; 89:492-500. [PMID: 22924690 DOI: 10.1111/j.1751-1097.2012.01229.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 08/13/2012] [Indexed: 11/28/2022]
Abstract
A major difficulty in photodynamic therapy is the poor solubility of the photosensitizer (PS) under physiological conditions which correlates with low bioavailability. PS aggregation leads to a decrease in the photodynamic efficiency and a more limited activity in vitro and in vivo. To improve the aqueous solubility and reduce the aggregation of 2,9(10),16(17),23(24)-tetrakis[(2-dimethylamino)ethylsulfanyl]phthal-ocyaninatozinc(II) (Pc9), the encapsulation into four poloxamine polymeric micelles (T304, T904, T1107 and T1307) displaying a broad spectrum of molecular weight and hydrophilic-lipophilic balance was investigated. The aqueous solubility of Pc9 was increased up to 30 times. Morphological evaluation showed the formation of Pc9-loaded spherical micelles in the nanosize range. UV/Vis and fluorescence studies indicated that Pc9 is less aggregated upon encapsulation in comparison with Pc9 in water-DMSO 2% and remained photostable. Pc9-loaded micelles generated singlet molecular oxygen in high yields. Photocytotoxicity assays using human nasopharynx KB carcinoma cells confirmed that the encapsulation of Pc9 in T1107 and T1307 increases its photocytotoxicity by 10 times in comparison with the free form in water-DMSO. In addition, Pc9 incorporated into cells was mainly localized in lysosomes.
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Affiliation(s)
- María C García Vior
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
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Diz VE, Gauna GA, Strassert CA, Awruch J, Dicelio LE. Photophysical properties of microencapsulated phthalocyanines. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424610002008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Lipophilic substituted zinc(II) phthalocyanines: 2,3,9,10,16,17,23,24-octakis[(N,N-dimethylaminoethylsulfanyl)]phthalocyaninatozinc(II) (S1) and tetrakis(N,N-dibutylaminoethoxy)phthalocyaninatozinc(II) (3) were incorporated into soybean L-α-phosphatidylcholine (SPC) liposomes of 100 nm diameter. Liposomes were characterized by static light scattering (SLS), transmission electronic microscopy (TEM), and differential scanning calorimetry. The fluorescence quantum yield and singlet molecular oxygen production of 3 are Φ F = 0.15 and ΦΔ = 0.24, respectively, whereas the same photophysical parameters for S1 are Φ F = 0.13 and ΦΔ = 0.51. Higher values of Φ F and ΦΔ are obtained in organic solvent for both dyes. Synthesis of compound 3 has also been reported.
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Affiliation(s)
- Virginia E. Diz
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
| | - Gabriela A. Gauna
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 1113 Buenos Aires, Argentina
| | - Cristian A. Strassert
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 1113 Buenos Aires, Argentina
| | - Josefina Awruch
- Departamento de Química Orgánica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956, 1113 Buenos Aires, Argentina
| | - Lelia E. Dicelio
- INQUIMAE, Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón II, 1428 Buenos Aires, Argentina
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Synthesis and comparative photodynamic properties of two isosteric alkyl substituted zinc(II) phthalocyanines. Eur J Med Chem 2011; 46:5532-9. [DOI: 10.1016/j.ejmech.2011.09.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 09/07/2011] [Accepted: 09/10/2011] [Indexed: 11/21/2022]
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Rodriguez ME, Diz VE, Awruch J, Dicelio LE. Photophysics of Zinc (II) Phthalocyanine Polymer and Gel Formulation. Photochem Photobiol 2010; 86:513-9. [DOI: 10.1111/j.1751-1097.2009.00702.x] [Citation(s) in RCA: 18] [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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Strassert C, Otter M, Albuquerque R, Höne A, Vida Y, Maier B, De Cola L. Photoaktive hybride Nanomaterialien für gezieltes Anbinden, Markieren und Töten von Antibiotika-resistenten Bakterien. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200902837] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Strassert C, Otter M, Albuquerque R, Höne A, Vida Y, Maier B, De Cola L. Photoactive Hybrid Nanomaterial for Targeting, Labeling, and Killing Antibiotic-Resistant Bacteria. Angew Chem Int Ed Engl 2009; 48:7928-31. [DOI: 10.1002/anie.200902837] [Citation(s) in RCA: 147] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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