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Liu S, Ma J, Xue EY, Wang S, Zheng Y, Ng DKP, Wang A, Zheng N. Polymeric Phthalocyanine-Based Nanosensitizers for Enhanced Photodynamic and Sonodynamic Therapies. Adv Healthc Mater 2023; 12:e2300481. [PMID: 37019442 DOI: 10.1002/adhm.202300481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/27/2023] [Indexed: 04/07/2023]
Abstract
Photodynamic therapy and sonodynamic therapy are two highly promising modalities for cancer treatment. The latter holds an additional advantage in deep-tumor therapy owing to the deep penetration of the ultrasonic radiation. The therapeutic efficacy depends highly on the photo/ultrasound-responsive properties of the sensitizers as well as their tumor-localization property and pharmacokinetics. A novel nanosensitizer system based on a polymeric phthalocyanine (pPC-TK) is reported herein in which the phthalocyanine units are connected with cleavable thioketal linkers. Such polymer could self-assemble in water forming nanoparticles with a hydrodynamic diameter of 48 nm. The degradable and flexible thioketal linkers could effectively inhibit the π-π stacking of the phthalocyanine units, rendering the resulting nanoparticles an efficient generator of reactive oxygen species upon light or ultrasonic irradiation. The nanosensitizer could be internalized into cancer cells readily, inducing cell death by efficient photodynamic and sonodynamic effects. The potency is significantly higher than that of the monomeric phthalocyanine (PC-4COOH). The nanosensitizer could also effectively inhibit the growth of tumor in liver tumor-bearing mice by these two therapies without causing noticeable side effects. More importantly, it could also retard the growth of a deep-located orthotopic liver tumor in vivo by sonodynamic therapy.
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Affiliation(s)
- Shuxin Liu
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
| | - Jinjuan Ma
- Department of Comparative Medicine Laboratory Animal Center, Dalian Medical University, Dalian, 116000, China
| | - Evelyn Y Xue
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N.T., Hong Kong, 999077, China
| | - Shaolei Wang
- Department of Radiology Intervention, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, 110801, China
| | - Yubin Zheng
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
- Dalian University of Technology Corporation of Changshu Research Institution, Suzhou, 215500, China
| | - Dennis K P Ng
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N.T., Hong Kong, 999077, China
| | - Aiguo Wang
- Department of Comparative Medicine Laboratory Animal Center, Dalian Medical University, Dalian, 116000, China
| | - Nan Zheng
- School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, China
- Dalian University of Technology Corporation of Changshu Research Institution, Suzhou, 215500, China
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2
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Liu L, Zhang XF. The excited state behavior of Group IA alkaline-metal phthalocyanines revealed by photoluminescence and singlet oxygen formation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120297. [PMID: 34455382 DOI: 10.1016/j.saa.2021.120297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/13/2021] [Accepted: 08/14/2021] [Indexed: 06/13/2023]
Abstract
Group IA alkaline-metal phthalocyanine (Pc) complexes (Li2Pc, Na2Pc, K2Pc, Rb2Pc, Cs2Pc) have been synthesized and purified to study their excited state behavior. Their UV-Vis electronic absorption spectra, fluorescence emission and excitation spectra, fluorescence quantum yields and lifetimes, as well as singlet oxygen formation quantum yields have been measured in DMF. These photophysical properties are compared with that of H2Pc. The fluorescence and singlet oxygen formation properties reveal that alkaline metal Pcs show weak heavy atom effect. The results also reveal that alkaline-metal Pcs (Na2Pc, K2Pc, Rb2Pc, and Cs2Pc) show very different excited singlet state (S1) behavior from that of Li2PC and H2Pc. While S1 decay of Li2PC is mainly via intersystem crossing and fluorescence, the S1 decay of M2Pc (M = Na, K, Rb, Cs) is mainly metal ion dissociation: M2Pc(S1) → 2 M+ + [Pc]2-(S1), in addition to the intersystem crossing.
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Affiliation(s)
- Limin Liu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, Anhui 232001, China
| | - Xian-Fu Zhang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province 518055, China.
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Wang K, Huang S, Ding P, Liang Z, Chen S, Li L, Ye C, Wang X. Highly-efficient red-to-yellow/green upconversion sensitized by phthalocyanine palladium with high triplet energy-level. RSC Adv 2021; 11:17755-17759. [PMID: 35480184 PMCID: PMC9033214 DOI: 10.1039/d1ra02528g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 05/04/2021] [Indexed: 11/21/2022] Open
Abstract
Soluble 3,7,11,15-tetra(tert-butyl)phthalocyanine palladium (TBPcPd) and 3,7,11,15-tetra(pentyloxy)phthalocyanine palladium (POPcPd) were synthesized and employed as sensitizers in expectation of achieving red-to-yellow/green upconversion (UC), doped with rubrene (Rub) and 9,10-bis(phenylethynyl)anthracene (BPEA), respectively. Under excitation of a 655 nm diode laser (∼1.5 W cm−2), a maximum red-to-green UC efficiency of 0.07% and a maximum red-to-yellow UC efficiency of 8.03% were obtained and the latter can drive a Si-photodiode to generate obvious photocurrent. The results showed that although a large triplet energy-level difference (ΔE = 3Esen. − 3Eanni.) of the sensitizer (3Esen.)/annihilator (3Eanni.) pair helps to improve the upconversion, the sensitizer/annihilator pair with a ΔE value less than zero still works. However, when the ΔE ≤ −0.05 eV, this bicomponent pair is not valid anymore. Thus, a comparison of the ΔE value can predict whether the sensitizer/annihilator pair is useful, which presents a quantitatively evaluated approach for exploring new-type upconversion systems for the first time. Soluble phthalocyanine palladium derivatives were synthesized and employed as sensitizers to achieve red-to-yellow/green upconversion, when doped with different annihilators.![]()
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Affiliation(s)
- Kai Wang
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Suqin Huang
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Ping Ding
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Zuoqin Liang
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Shuoran Chen
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Lin Li
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Changqing Ye
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
| | - Xiaomei Wang
- Suzhou Key Laboratory of Flexible & Printing Optoelectronic Materials, School of Materials Science and Engineering, Suzhou University of Science and Technology Suzhou 215009 China
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Ayari S, Saglam MF, Şenkuytu E, Erçin PB, Zorlu Y, Sengul IF, Jamoussi B, Atilla D. 3-Methylindole-substituted zinc phthalocyanines for photodynamic cancer therapy. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501426] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Novel peripherally and non-peripherally 3-methylindole-substituted zinc phthalocyanine derivatives were synthesized as photosensitizers for photodynamic therapy in cancer treatment. The photophysical, photochemical and photobiological properties of targeted phthalocyanines were also investigated. For this purpose, the fluorescence and singlet oxygen quantum yields, and fluorescence lifetime values of the final compounds were determined in DMF solutions. The phototoxicity and cytotoxicity of the phthalocyanine complexes were tested against the invasive human breast cancer cell line (MDA-MB-231) for determination of their photosensitizing ability in the area of photodynamic therapy. It was revealed that while peripherally 3-methylindole-substituted phthalocyanine was found to be toxic for cells in both dark and light conditions, its non-peripherally substituted phthalocyanine analogue significantly caused cell death following light irradiation. A preliminary assay suggested that the non-peripherally linked phthalocyanine could be a suitable candidate for cancer treatment via photodynamic therapy techniques.
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Affiliation(s)
- Sami Ayari
- Laboratory of Chemical Analysis, Institute of Higher and Continuing Education, 2000 Bardo, Sciences Faculty of Tunis, University of Tunis El Manar, Tunisia
| | - Mehmet F. Saglam
- Gebze Technical University, Faculty of Science, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey
| | - Elif Şenkuytu
- Gebze Technical University, Faculty of Science, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey
| | - Pelin B. Erçin
- Gebze Technical University, Faculty of Science, Department of Molecular Biology and Genetics, 41400, Gebze, Kocaeli, Turkey
| | - Yunus Zorlu
- Gebze Technical University, Faculty of Science, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey
| | - Ibrahim F. Sengul
- Gebze Technical University, Faculty of Science, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey
| | - Bassem Jamoussi
- Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Devrim Atilla
- Gebze Technical University, Faculty of Science, Department of Chemistry, 41400, Gebze, Kocaeli, Turkey
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Wu W, Shao X, Zhao J, Wu M. Controllable Photodynamic Therapy Implemented by Regulating Singlet Oxygen Efficiency. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2017; 4:1700113. [PMID: 28725533 PMCID: PMC5515253 DOI: 10.1002/advs.201700113] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 04/08/2017] [Indexed: 05/25/2023]
Abstract
With singlet oxygen (1O2) as the active agent, photodynamic therapy (PDT) is a promising technique for the treatment of various tumors and cancers. But it is hampered by the poor selectivity of most traditional photosensitizers (PS). In this review, we present a summary of controllable PDT implemented by regulating singlet oxygen efficiency. Herein, various controllable PDT strategies based on different initiating conditions (such as pH, light, H2O2 and so on) have been summarized and introduced. More importantly, the action mechanisms of controllable PDT strategies, such as photoinduced electron transfer (PET), fluorescence resonance energy transfer (FRET), intramolecular charge transfer (ICT) and some physical/chemical means (e.g. captivity and release), are described as a key point in the article. This review provide a general overview of designing novel PS or strategies for effective and controllable PDT.
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Affiliation(s)
- Wenting Wu
- State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumQingdao266580China
- State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
| | - Xiaodong Shao
- State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumQingdao266580China
| | - Jianzhang Zhao
- State Key Laboratory of Fine ChemicalsSchool of Chemical EngineeringDalian University of TechnologyDalian116024P. R. China
| | - Mingbo Wu
- State Key Laboratory of Heavy Oil ProcessingChina University of PetroleumQingdao266580China
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6
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Li Z, Zhang P, Zang L, Qin F, Zhang Z, Zhang H. Note: Measuring instrument of singlet oxygen quantum yield in photodynamic effects. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2017; 88:066102. [PMID: 28668012 DOI: 10.1063/1.4985111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Using diphenylisobenzofuran (C20H14O) as a singlet oxygen (1O2) reporter, a comparison method, which can be used to measure the singlet oxygen quantum yield (ΦΔ) of the photosensitizer quantitatively, is presented in this paper. Based on this method, an automatic measuring instrument of singlet oxygen quantum yield is developed. The singlet oxygen quantum yield of the photosensitizer hermimether and aloe-emodin is measured. It is found that the measuring results are identical to the existing ones, which verifies the validity of the measuring instrument.
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Affiliation(s)
- Zhongwei Li
- School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
| | - Pengwei Zhang
- School of Electrical Engineering and Automation, Harbin Institute of Technology, Harbin 150001, China
| | - Lixin Zang
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Feng Qin
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Zhiguo Zhang
- Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150080, China
| | - Hongli Zhang
- School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
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7
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Lee SH, Blake IM, Larsen AG, McDonald JA, Ohkubo K, Fukuzumi S, Reimers JR, Crossley MJ. Synthetically tuneable biomimetic artificial photosynthetic reaction centres that closely resemble the natural system in purple bacteria. Chem Sci 2016; 7:6534-6550. [PMID: 27928494 PMCID: PMC5125414 DOI: 10.1039/c6sc01076h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/16/2016] [Indexed: 12/18/2022] Open
Abstract
Porphyrin-based photosynthetic reaction centre (PRC) mimics, ZnPQ-Q2HP-C60 and MP2Q-Q2HP-C60 (M = Zn or 2H), designed to have a similar special-pair electron donor and similar charge-separation distances, redox processes and photochemical reaction rates to those in the natural PRC from purple bacteria, have been synthesised and extensive photochemical studies performed. Mechanisms of electron-transfer reactions are fully investigated using femtosecond and nanosecond transient absorption spectroscopy. In benzonitrile, all models show picosecond-timescale charge-separations and the final singlet charge-separations with the microsecond-timescale. The established lifetimes are long compared to other processes in organic solar cells or other organic light harvesting systems. These rigid, synthetically flexible molecules provide the closest mimics to the natural PRC so far synthesised and present a future direction for the design of light harvesters with controllable absorption, redox, and kinetics properties.
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Affiliation(s)
- Sai-Ho Lee
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Iain M Blake
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Allan G Larsen
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - James A McDonald
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
| | - Kei Ohkubo
- Department of Material and Life Science , Graduate School of Engineering , Osaka University , Suita , Osaka 565-0871 , Japan .
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science , Ewha Womans University , Seoul 120-750 , Korea ; Faculty of Science and Engineering , Meijo University , Nagoya , Aichi 468-0073 , Japan
| | - Jeffrey R Reimers
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia . ; International Centre for Quantum and Molecular Structure , Shanghai University , 200444 , Shanghai , China . ; School of Mathematical and Physical Sciences , The University of Technology Sydney , 2007 , NSW , Australia .
| | - Maxwell J Crossley
- School of Chemistry F11 , The University of Sydney , 2006 , NSW , Australia .
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8
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Dąbrowski JM, Pucelik B, Regiel-Futyra A, Brindell M, Mazuryk O, Kyzioł A, Stochel G, Macyk W, Arnaut LG. Engineering of relevant photodynamic processes through structural modifications of metallotetrapyrrolic photosensitizers. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.06.007] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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9
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Lipid vesicles loading aluminum phthalocyanine chloride: Formulation properties and disaggregation upon intracellular delivery. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2016; 160:240-7. [DOI: 10.1016/j.jphotobiol.2016.03.050] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 03/29/2016] [Accepted: 03/30/2016] [Indexed: 01/25/2023]
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10
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Thigulla Y, Akula M, Trivedi P, Ghosh B, Jha M, Bhattacharya A. Synthesis and anti-cancer activity of 1,4-disubstituted imidazo[4,5-c]quinolines. Org Biomol Chem 2016; 14:876-83. [DOI: 10.1039/c5ob01650a] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Synthesis of 4-substituted imidazo[4,5-c]quinolines using a Yb(OTf)3 catalyzed modified Pictet–Spengler reaction as the key final step.
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Affiliation(s)
- Yadagiri Thigulla
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani (Hyderabad Campus)
- Hyderabad-500078
- India
| | - Mahesh Akula
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani (Hyderabad Campus)
- Hyderabad-500078
- India
| | - Prakruti Trivedi
- Department of Pharmacy
- Birla Institute of Technology and Science-Pilani (Hyderabad Campus)
- Hyderabad-500078
- India
| | - Balaram Ghosh
- Department of Pharmacy
- Birla Institute of Technology and Science-Pilani (Hyderabad Campus)
- Hyderabad-500078
- India
| | - Mukund Jha
- Department of Biology and Chemistry
- Nipissing University
- North Bay
- Canada
| | - Anupam Bhattacharya
- Department of Chemistry
- Birla Institute of Technology and Science-Pilani (Hyderabad Campus)
- Hyderabad-500078
- India
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11
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Ramos AA, Nascimento FB, de Souza TFM, Omori AT, Manieri TM, Cerchiaro G, Ribeiro AO. Photochemical and Photophysical Properties of Phthalocyanines Modified with Optically Active Alcohols. Molecules 2015. [PMID: 26213911 PMCID: PMC6332150 DOI: 10.3390/molecules200813575] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Three phthalocyanine derivatives were synthesized and characterized: one modified with a racemic mixture of 1-(4-bromophenyl)ethanol and two other macrocycles modified with each one of the enantioenriched isomers (R)-1-(4-bromophenyl)ethanol and (S)-1-(4-bromophenyl)ethanol. The compounds were characterized by 1H-NMR spectroscopy, mass spectrometry, UV-Vis absorption, and excitation and emission spectra. Additionally, partition coefficient values and the quantum yield of the generation of oxygen reactive species were determined. Interestingly, the phthalocyanine containing a (R)-1-(4-bromophenyl)ethoxy moiety showed higher quantum yield of reactive oxygen species generation than other compounds under the same conditions. In addition, the obtained fluorescence microscopy and cell viability results have shown that these phthalocyanines have different interactions with mammary MCF-7 cells. Therefore, our results indicate that the photochemical and biological properties of phthalocyanines with chiral ligands should be evaluated separately for each enantiomeric species.
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Affiliation(s)
- Aline A Ramos
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Francisco B Nascimento
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Thaiza F M de Souza
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Alvaro T Omori
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Tânia M Manieri
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Giselle Cerchiaro
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
| | - Anderson O Ribeiro
- Centro de Ciências Naturais e Humanas-CCNH, Universidade Federal do ABC-UFABC, Avenida dos Estados, 5005, Bairro Bangu, Santo André-SP 09210-190, Brasil.
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Khoza P, Nyokong T. Photocatalytic behaviour of zinc tetraamino phthalocyanine-silver nanoparticles immobilized on chitosan beads. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.01.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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13
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Geng H, Zhang XF. Spectroscopic insights on selfassembly and excited state interactions between rhodamine and phthalocyanine molecules. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 139:13-19. [PMID: 25546492 DOI: 10.1016/j.saa.2014.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 11/29/2014] [Accepted: 12/08/2014] [Indexed: 06/04/2023]
Abstract
The absorption and fluorescence spectra as well as fluorescence lifetimes of tetrasulfonated zinc phthalocyanine ZnPc(SO3Na)4 were measured in the absence and presence of four rhodamine dyes, Rhodamine B (RB), Ethyl rhodamine B (ERB), Rhodamine 6G (R6G), Rhodamine 110 (R110), and Pyronine B (PYB). The ground state complexes of phthalocyanine-(Rhodamine)2 were observed which exhibit new absorption bands. The binding constants are all very large (0.86×10(5)-0.22×10(8) M(-1)), suggesting rhodamine-phthalocyanine pairs are very good combinations for efficient selfassembly. Both the fluorescence intensity and the lifetime values of ZnPc(SO3Na)4 were decreased by the presence of rhodamines. The structural effect of rhodamines on selfassembly is significant. The ground state binding and dynamic quenching capability is PYB>R6G>ERB>RB>R110. The dynamic fluorescence quenching is due to the photoinduced electron transfer (PET). The PET rate constant is very large and in the order of 10(13) M(-1) s(-1), much greater than kf and kic (in the order of 10(8) M(-1) s(-1)), which means that the PET efficiency is almost 100%. Therefore the non-covalent Pc-rhodamine is a very good pair of donor/acceptor for potential efficient solar energy conversion.
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Affiliation(s)
- Hao Geng
- Institute of Applied Photochemistry & Center of Analysis and Measurements, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China
| | - Xian-Fu Zhang
- Institute of Applied Photochemistry & Center of Analysis and Measurements, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China; MPC Technologies, Hamilton, ON L8S 3H4, Canada.
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14
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Wang T, Zhang XF, Lu X. Metal-free phthalocyanine aggregation and binding with amines: Specific and general solvent effects on absorption and fluorescence properties. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.11.073] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Zhang XF, Lin Y, Guo W, Zhu J. Spectroscopic insights on imidazole substituted phthalocyanine photosensitizers: fluorescence properties, triplet state and singlet oxygen generation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:752-758. [PMID: 24997445 DOI: 10.1016/j.saa.2014.06.063] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2014] [Revised: 04/10/2014] [Accepted: 06/08/2014] [Indexed: 06/03/2023]
Abstract
Imidazole substituted metal phthalocyanine (Pc) complexes were synthesized. UV-vis absorption, steady state and time-resolved fluorescence, as well as laser flash photolysis were used to measure the photophysical and photosensitizing properties. All the imidazole-phthalocyanine conjugates show high ΦT (quantum yield of excited triplet formation), high ΦΔ (singlet oxygen formation yield, >0.50) and good fluorescence properties (quantum yield Φf>0.20 and lifetime τf>3.0 ns). Compared to the unsubstituted Pc, both α- and β-imidazole substitutions result in the remarkable decrease in Φf and τf, but the α-substitution is stronger. The imidazole substitution, on the other hand, causes the increase of ΦT, τT, and ΦΔ values. Magnesium phthalocyanine (MgPc) is more susceptible to the substitution than zinc phthalocyanine (ZnPc). The mechanism responsible for the result is suggested based on the involvement of intramolecular photoinduced electron transfer. The high ΦΔ and appropriate fluorescence properties make the Pcs good candidate for PDT photosensitizers.
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Affiliation(s)
- Xian-Fu Zhang
- Institute of Applied Photochemistry, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China; MPC Technology, Hamilton, ON L8S 3H4, Canada.
| | - Yong Lin
- Institute of Applied Photochemistry, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China
| | - Wenfeng Guo
- Institute of Applied Photochemistry, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China
| | - Jingzhong Zhu
- Institute of Applied Photochemistry, Hebei Normal University of Science and Technology, Qinhuangdao, Hebei Province 066004, China
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Bulgakov RA, Kuznetsova NA, Dolotova OV, Solovieva LI, Mack J, Chidawanyika WJU, Kaliya OL, Nyokong T. Synthesis and photophysical properties of covalent conjugates of aqua platinum(II) and octacarboxy-substituted zinc phthalocyanine. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424612501209] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
New covalent conjugates of aqua platinum(II) and octacarboxy-substituted zinc phthalocyanine, bearing one, two, three and four aqua platinum moieties on the periphery of the Pc ligand have been synthesized and characterized. The effect of the stepwise introduction of the aqua platinums on the photophysical and photochemical properties of these compounds has been investigated in dimethylsulfoxide solution. It has been found that aqua platinum moieties have only a limited effect on the dynamics of the singlet and triplet excited states, on the ability to sensitize singlet oxygen formation and on the photostability. Each conjugate has a high singlet oxygen quantum yield (ΦΔ 0.51–0.62) and thus retains potential for use as a dual action anticancer drugs by acting as a sensitizer for PDT in addition to the likely chemotherapeutic effects of the Pt(II) complexes.
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Affiliation(s)
- Roman A. Bulgakov
- Organic Intermediates and Dyes Institute, B. Sadovaya ¼, Moscow 123995, Russia
| | - Nina A. Kuznetsova
- Organic Intermediates and Dyes Institute, B. Sadovaya ¼, Moscow 123995, Russia
| | - Olga V. Dolotova
- Organic Intermediates and Dyes Institute, B. Sadovaya ¼, Moscow 123995, Russia
| | | | - John Mack
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
| | | | - Oleg L. Kaliya
- Organic Intermediates and Dyes Institute, B. Sadovaya ¼, Moscow 123995, Russia
| | - Tebello Nyokong
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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Zhang XF, Li F. Interaction of graphene with excited and ground state rhodamine revealed by steady state and time resolved fluorescence. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2012.06.025] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vachova L, Novakova V, Kopecky K, Miletin M, Zimcik P. Effect of intramolecular charge transfer on fluorescence and singlet oxygen production of phthalocyanine analogues. Dalton Trans 2012; 41:11651-6. [PMID: 22832706 DOI: 10.1039/c2dt31403g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Intramolecular charge transfer (ICT) was studied on a series of magnesium, metal-free and zinc complexes of unsymmetrical tetrapyrazinoporphyrazines and tribenzopyrazinoporphyrazines bearing two dialkylamino substituents (donors) and six alkylsulfanyl or aryloxy substituents (non-donors). The dialkylamino substituents were responsible for ICT that deactivated excited states and led to considerable decrease of fluorescence and singlet oxygen quantum yields. Photophysical and photochemical properties were compared to corresponding macrocycles that do not bear any donor centers. The data showed high feasibility of ICT in the tetrapyrazinoporphyrazine macrocycle and significantly lower efficiency of this deactivation process in the tribenzopyrazinoporphyrazine type molecules. Considerable effect of non-donor peripheral substituents on ICT was also described. The results imply that tetrapyrazinoporphyrazines may be more suitable for development of new molecules investigated in applications based on ICT.
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Affiliation(s)
- Lenka Vachova
- Department of Pharmaceutical Chemistry and Drug Control, Faculty of Pharmacy in Hradec Kralove, Charles University in Prague, Heyrovskeho 1203, 50005, Hradec Kralove, Czech Republic
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