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Militello MP, Gambetta C, Ramírez ML, Bertolotti SG, Previtali CM, Arbeloa EM. New Dye/Dendrimer Photoinitiating Systems Operating under Visible Radiation: Eco‐Friendly Synthesis of Highly Viscous Polymers. ChemistrySelect 2022. [DOI: 10.1002/slct.202201933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- María Paula Militello
- Departamento de Química FCEFQN Universidad Nacional de Rio Río Cuarto Instituto de Tecnologías Energéticas y Materiales Avanzados (IITEMA-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
| | - Carolina Gambetta
- Departamento de Microbiología e Inmunología FCEFQN Universidad Nacional de Río Cuarto Instituto de Investigación en Micología y Micotoxicología (IMICO-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
| | - María Laura Ramírez
- Departamento de Microbiología e Inmunología FCEFQN Universidad Nacional de Río Cuarto Instituto de Investigación en Micología y Micotoxicología (IMICO-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
| | - Sonia Graciela Bertolotti
- Departamento de Química FCEFQN Universidad Nacional de Rio Río Cuarto Instituto de Tecnologías Energéticas y Materiales Avanzados (IITEMA-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
| | - Carlos Mario Previtali
- Departamento de Química FCEFQN Universidad Nacional de Rio Río Cuarto Instituto de Tecnologías Energéticas y Materiales Avanzados (IITEMA-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
| | - Ernesto Maximiliano Arbeloa
- Departamento de Química FCEFQN Universidad Nacional de Rio Río Cuarto Instituto de Tecnologías Energéticas y Materiales Avanzados (IITEMA-CONICET) Ruta 36 Km 601 5800 Río Cuarto Córdoba Argentina
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3
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Li J, Yang J, Liu W. A Mechanically Robust, Stiff, and Tough Hyperbranched Supramolecular Polymer Hydrogel. Macromol Rapid Commun 2018; 40:e1800819. [DOI: 10.1002/marc.201800819] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 11/30/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Jia Li
- School of Materials Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Jianhai Yang
- School of Materials Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
| | - Wenguang Liu
- School of Materials Science and EngineeringTianjin Key Laboratory of Composite and Functional MaterialsTianjin University Tianjin 300350 China
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4
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Militello MP, Altamirano MS, Bertolotti SG, Previtali CM. The interaction of the excited states of safranine-O with low generation carboxyl terminated PAMAM dendrimers in an aqueous medium. Photochem Photobiol Sci 2018; 17:652-659. [PMID: 29708565 DOI: 10.1039/c8pp00039e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The interaction of the singlet and triplet excited states of the synthetic dye safranine-O with carboxyl-terminated poly(amidoamine) (PAMAM) dendrimers was investigated in a buffer solution at pH 8. Low half-generation PAMAM dendrimers (G -0.5; G +0.5: G 1.5) were employed. The UV-vis absorption spectrum of the dye presents only a very small red shift in the presence of dendrimers. Fluorescence quenching was detected and it was interpreted by a static mechanism in terms of the association of the dye with the dendrimer. Laser flash photolysis experiments were carried out and transient absorption spectra of the triplet and radicals were obtained. The triplet state is quenched by the dendrimers with rate constants well below the diffusional limit. The quenching process was characterized as an electron transfer process and the quantum yield of radicals was estimated. It was found that radicals are formed with a high efficiency in the triplet quenching reaction.
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Affiliation(s)
- M Paula Militello
- Departamento de Química, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Argentina.
| | - Marcela S Altamirano
- Departamento de Química, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Argentina.
| | - Sonia G Bertolotti
- Departamento de Química, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Argentina.
| | - Carlos M Previtali
- Departamento de Química, Universidad Nacional de Río Cuarto, 5800 Río Cuarto, Argentina.
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5
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Tasdelen MA, Yagci Y. Benzodioxinone Photochemistry in Macromolecular Science: Progress, Challenges, and Opportunities. ACS Macro Lett 2017; 6:1392-1397. [PMID: 35650810 DOI: 10.1021/acsmacrolett.7b00788] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
This paper reviews the photoinduced reactions of benzodioxinones and how they function in polymer synthesis and UV curing applications. The mechanistic characteristics of the ketene and benzophenone production from the photolysis of benzodioxinone indicate that, under certain conditions, each intermediate may undergo further reactions expedient for the formation of various polymeric structures. While ketenes are efficient contributors to step-growth polymerization when subjected to reaction with the compounds possessing hydroxyl or amine groups, the released benzophenone can be utilized as a photoinitiator in both the free radical and cationic polymerizations. It has been shown that the photolysis of heterobifunctional monomers equipped with benzodioxinone and aliphatic hydroxyl groups leads to the formation of oligoesters with a narrow molecular weight distribution. We also validated the photochemical ability of benzodioxinone to induce the synthesis of block and graft copolymers, hybrid and branched polymers, and cross-linked monofunctional vinyl monomers or hydroxyl group-containing linear polymers.
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Affiliation(s)
- Mehmet Atilla Tasdelen
- Department
of Polymer Engineering, Faculty of Engineering, Yalova University, 77200 Yalova, Turkey
| | - Yusuf Yagci
- Department
of Chemistry, Istanbul Technical University, Maslak, TR-34469 Istanbul, Turkey
- Center
of Excellence for Advanced Materials Research (CEAMR) and Chemistry
Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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6
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Altinkok C, Oytun F, Basarir F, Tasdelen MA. Cysteamine-functionalized silver nanowires as hydrogen donor for type II photopolymerization. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.06.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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7
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Ciftci M, Tasdelen MA, Yagci Y. Macromolecular design and application using Mn2(CO)10-based visible light photoinitiating systems. POLYM INT 2016. [DOI: 10.1002/pi.5111] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mustafa Ciftci
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
| | - Mehmet Atilla Tasdelen
- Department of Polymer Engineering, Faculty of Engineering; Yalova University; TR-77100 Yalova Turkey
| | - Yusuf Yagci
- Department of Chemistry; Istanbul Technical University; Maslak Istanbul 34469 Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science; King Abdulaziz University; PO Box 80203 Jeddah 21589 Saudi Arabia
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8
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Dadashi-Silab S, Doran S, Yagci Y. Photoinduced Electron Transfer Reactions for Macromolecular Syntheses. Chem Rev 2016; 116:10212-75. [PMID: 26745441 DOI: 10.1021/acs.chemrev.5b00586] [Citation(s) in RCA: 557] [Impact Index Per Article: 69.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Photochemical reactions, particularly those involving photoinduced electron transfer processes, establish a substantial contribution to the modern synthetic chemistry, and the polymer community has been increasingly interested in exploiting and developing novel photochemical strategies. These reactions are efficiently utilized in almost every aspect of macromolecular architecture synthesis, involving initiation, control of the reaction kinetics and molecular structures, functionalization, and decoration, etc. Merging with polymerization techniques, photochemistry has opened up new intriguing and powerful avenues for macromolecular synthesis. Construction of various polymers with incredibly complex structures and specific control over the chain topology, as well as providing the opportunity to manipulate the reaction course through spatiotemporal control, are one of the unique abilities of such photochemical reactions. This review paper provides a comprehensive account of the fundamentals and applications of photoinduced electron transfer reactions in polymer synthesis. Besides traditional photopolymerization methods, namely free radical and cationic polymerizations, step-growth polymerizations involving electron transfer processes are included. In addition, controlled radical polymerization and "Click Chemistry" methods have significantly evolved over the last few decades allowing access to narrow molecular weight distributions, efficient regulation of the molecular weight and the monomer sequence and incredibly complex architectures, and polymer modifications and surface patterning are covered. Potential applications including synthesis of block and graft copolymers, polymer-metal nanocomposites, various hybrid materials and bioconjugates, and sequence defined polymers through photoinduced electron transfer reactions are also investigated in detail.
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Affiliation(s)
- Sajjad Dadashi-Silab
- Department of Chemistry, Istanbul Technical University , 34469 Maslak, Istanbul, Turkey
| | - Sean Doran
- Department of Chemistry, Istanbul Technical University , 34469 Maslak, Istanbul, Turkey
| | - Yusuf Yagci
- Department of Chemistry, Istanbul Technical University , 34469 Maslak, Istanbul, Turkey.,Center of Excellence for Advanced Materials Research (CEAMR) and Department of Chemistry, King Abdulaziz University , 21589 Jeddah, Saudi Arabia
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Dai Y, Song Y, Tu X, Jiang Y, Yuan Y. Sequential shape-selective adsorption and photocatalytic transformation of acrylonitrile production wastewater. WATER RESEARCH 2015; 85:216-225. [PMID: 26331895 DOI: 10.1016/j.watres.2015.08.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 08/11/2015] [Accepted: 08/19/2015] [Indexed: 06/05/2023]
Abstract
Acrylonitrile production wastewater has been widely recognized as one type of refractory organic wastewater because of its complicated composition and low bioavailability. It usually contains plenty of micromolecular nitrile and pyridine, resulting in high chemical oxygen demand (CODCr), total organic carbon (TOC) and total nitrogen (TN) concentrations. In this study, a novel microporous zeolite, CS-Z1, was developed as an adsorbent for rapidly shape-selective adsorption of the micromolecular pollutants from the acrylonitrile production wastewater, and a visible light-driven Ti-β-Bi2O3 photocatalysis was introduced to sequentially treat the residual macromolecular pollutants for complete purification. The adsorption processes by CS-Z1 were mostly achieved within the first 5 min, and the equilibrium was reached quickly after 30 min, where the CODCr, TOC and TN removal efficiencies of the wastewater were as high as 93.5%, 92.2% and 96.8%, respectively, much higher than those by other adsorbents. Furthermore, the adsorption efficiencies of CS-Z1 were barely affected by the variation of pH value and temperature, which was mainly attributed to the shape-selective adsorption mechanism of the CS-Z1 zeolite. The Ti-β-Bi2O3 photocatalysis could remove more than 95% of the residual macromolecular pollutants in the wastewater, where a synergistic mechanism of reduction-oxidation/polymerization was proposed. In a 108 h of CS-Z1 adsorption and Ti-β-Bi2O3 photocatalysis sequential process, the CODCr, TOC and TN concentrations was reduced to below 20, 7 and 5 mg L(-1), respectively, demonstrating the excellent practical potential of the sequential treatment system for acrylonitrile production wastewater.
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Affiliation(s)
- Yunrong Dai
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China; Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Yonghui Song
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China; Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Xiang Tu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China; Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Yanpeng Jiang
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Yu Yuan
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
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Shaker MA, Younes HM. Photo-irradiation paradigm: Mapping a remarkable facile technique used for advanced drug, gene and cell delivery. J Control Release 2015; 217:10-26. [PMID: 26184048 DOI: 10.1016/j.jconrel.2015.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/02/2015] [Accepted: 07/03/2015] [Indexed: 12/13/2022]
Abstract
Undoubtedly, the progression of photo-irradiation technique has provided a smart engineering tool for the state-of-the-art biomaterials that guide the biomedical and therapeutic domains for promoting the modern pharmaceutical industry. Many investigators had exploited such a potential technique to create/ameliorate numerous pharmaceutical carriers. These carriers show promising applications that vary from small drug to therapeutic protein delivery and from gene to living cell encapsulation design. Harmony between the properties of precisely engineered precursors and the formed network structure broadens the investigator's intellect for both brilliant creations and effective applications. As well, controlling photo-curing at the formulation level, through manipulating the absorption of light stimuli, photoinitiator system and photo-responsive precursor, facilitates the exploration of novel distinctive biomaterials. Discussion of utilizing different photo-curing procedures in designing/formulation of different pharmaceutical carriers is the main emphasis of this review. In addition, recent applications of these intelligent techniques in targeted, controlled, and sustained drug delivery with understanding of photo-irradiation concept and mechanism are illustrated.
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Affiliation(s)
- Mohamed A Shaker
- Pharmaceutics Department, College of Pharmacy, PO Box 30040, Taibah University, Al Madina Al Munawara, Saudi Arabia; Pharmaceutics Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
| | - Husam M Younes
- Pharmaceutics & Polymeric Drug Delivery Research Lab (PPDDRL), College of Pharmacy, PO Box 2713, Qatar University, Doha, Qatar
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11
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Dadashi-Silab S, Aydogan C, Yagci Y. Shining a light on an adaptable photoinitiator: advances in photopolymerizations initiated by thioxanthones. Polym Chem 2015. [DOI: 10.1039/c5py01004g] [Citation(s) in RCA: 147] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review focuses on the advancements and progress in photoinitiated polymerization techniques mediated by thioxanthone (TX) and its derivatives.
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Affiliation(s)
| | - Cansu Aydogan
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
| | - Yusuf Yagci
- Department of Chemistry
- Istanbul Technical University
- Istanbul
- Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Department of Chemistry
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12
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UV-violet-blue LED induced polymerizations: Specific photoinitiating systems at 365, 385, 395 and 405 nm. POLYMER 2014. [DOI: 10.1016/j.polymer.2014.11.002] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Cheng J, Jiang S, Gao Y, Wang J, Sun F. Tuning gradient property and initiating gradient photopolymerization of acrylamide aqueous solution of a hydrosoluble photocleavage polysiloxane-based photoinitiator. POLYM ADVAN TECHNOL 2014. [DOI: 10.1002/pat.3378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiye Cheng
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Science; Beijing University of Chemical Technology; Beijing 100029 China
| | - Shengling Jiang
- College of Materials Science and Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Yanjing Gao
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
| | - Jiansheng Wang
- College of Science; Beijing University of Chemical Technology; Beijing 100029 China
| | - Fang Sun
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 China
- College of Science; Beijing University of Chemical Technology; Beijing 100029 China
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14
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Murtezi E, Ciftci M, Yagci Y. Synthesis of clickable hydrogels and linear polymers by type II photoinitiation. POLYM INT 2014. [DOI: 10.1002/pi.4786] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Eljesa Murtezi
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department; Maslak TR-34469 Istanbul Turkey
| | - Mustafa Ciftci
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department; Maslak TR-34469 Istanbul Turkey
| | - Yusuf Yagci
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department; Maslak TR-34469 Istanbul Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science; King Abdulaziz University; PO Box 80203 Jeddah 21589 Saudi Arabia
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15
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Cheng J, Jiang S, Gao Y, Wang J, Sun F, Du H. Hydrosoluble hybrid and multifunctional polysiloxane-based photoinitiators for initiating gradient photopolymerization of acrylamide aqueous solution. RSC Adv 2014. [DOI: 10.1039/c4ra02623c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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16
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Synthesis of H-shaped complex macromolecular structures by combination of atom transfer radical polymerization, photoinduced radical coupling, ring-opening polymerization, and iniferter processes. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26879] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Taskin OS, Yilmaz G, Tasdelen MA, Yagci Y. Photoinduced reverse atom transfer radical polymerization of methyl methacrylate using camphorquinone/benzhydrol system. POLYM INT 2013. [DOI: 10.1002/pi.4573] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Omer Suat Taskin
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department, Maslak; TR-34469 Istanbul Turkey
| | - Gorkem Yilmaz
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department, Maslak; TR-34469 Istanbul Turkey
| | - Mehmet Atilla Tasdelen
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department, Maslak; TR-34469 Istanbul Turkey
- Department of Polymer Engineering, Faculty of Engineering; Yalova University; TR-77100 Yalova Turkey
| | - Yusuf Yagci
- Istanbul Technical University; Faculty of Science and Letters, Chemistry Department, Maslak; TR-34469 Istanbul Turkey
- King Abdulaziz University; Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science; PO Box 80203 Jeddah 21589 Saudi Arabia
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19
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Yilmaz G, Acik G, Yagci Y. Counteranion Sensitization Approach to Photoinitiated Free Radical Polymerization. Macromolecules 2012. [DOI: 10.1021/ma3000169] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Gorkem Yilmaz
- Department of Chemistry, Istanbul Technical University, 34469, Maslak, Istanbul,
Turkey
| | - Gokhan Acik
- Department of Chemistry, Istanbul Technical University, 34469, Maslak, Istanbul,
Turkey
| | - Yusuf Yagci
- Department of Chemistry, Istanbul Technical University, 34469, Maslak, Istanbul,
Turkey
- Faculty of Science,
Chemistry Department, King Abdulaziz University, Jeddah, Saudi Arabia
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Altinkok C, Uyar T, Tasdelen MA, Yagci Y. In situ
synthesis of polymer/clay nanocomposites by type II photoinitiated free radical polymerization. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24788] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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21
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Gorur M, Yilmaz F, Kilic A, Sahin ZM, Demirci A. Synthesis of pyrene end-capped A6 dendrimer and star polymer with phosphazene core via “click chemistry”. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24756] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Tasdelen MA, Yagci Y. Photochemical Methods for the Preparation of Complex Linear and Cross-linked Macromolecular Structures. Aust J Chem 2011. [DOI: 10.1071/ch11113] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this contribution, the current state of the art is summarized and an overview of photoinitiating systems for both radical and cationic polymerizations and their potential application in the preparation of complex linear and cross-linked macromolecular structures are described. Recent relevant studies have been devoted to developing novel free radical and cationic photoinitiators having spectroscopic sensitivity in the near-UV or visible range. Photoinitiated controlled radical polymerization methods leading to tailor-made polymers with predetermined structure and architecture are briefly presented. Several synthetic methodologies for the preparation of epoxy and (meth)acrylate based formulations containing clay or metal nanoparticles are also summarized. The nanoparticles are homogenously distributed in the network without macroscopic agglomeration. Applicability to both free radical and cationic systems is demonstrated.
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Yilmaz G, Tuzun A, Yagci Y. Thioxanthone-carbazole as a visible light photoinitiator for free radical polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24310] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Yagci Y, Jockusch S, Turro NJ. Photoinitiated Polymerization: Advances, Challenges, and Opportunities. Macromolecules 2010. [DOI: 10.1021/ma1007545] [Citation(s) in RCA: 956] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Yusuf Yagci
- Istanbul Technical University, Department of Chemistry, Maslak, Istanbul 34469, Turkey
| | - Steffen Jockusch
- Department of Chemistry, Columbia University, New York, New York 10027
| | - Nicholas J. Turro
- Department of Chemistry, Columbia University, New York, New York 10027
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25
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Temel G, Parali T, Tulu M, Arsu N. Photopolymerization of acrylamide with benzophenone/methylated-β-cyclodextrin inclusion complex in the presence of jeffamine based dendrimers as coinitiators in aqueous media. J Photochem Photobiol A Chem 2010. [DOI: 10.1016/j.jphotochem.2010.04.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Fang S, Duan M, Jiang C, Zhang L, Zhang J. Synthesis and Characterization of Star Polyacrylamides Using Poly(ethylene imine) as a Core via Photopolymerization in Water. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2009. [DOI: 10.1080/10601320903397168] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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27
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Furumi S, Otomo A, Yokoyama S, Mashiko S. Photochemical and photophysical reactions of poly(propylene imine) dendrimers tethering cinnamamide groups. POLYMER 2009. [DOI: 10.1016/j.polymer.2009.04.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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The use of poly(ethylene oxide) as hydrogen donor in type II photoinitiated free radical polymerization. Polym Bull (Berl) 2009. [DOI: 10.1007/s00289-009-0079-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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Suchetti CA, Novaira AI, Bertolotti SG, Previtali CM. The excited states interaction of safranine-O with PAMAM and DAB dendrimers in methanol. J Photochem Photobiol A Chem 2009. [DOI: 10.1016/j.jphotochem.2008.09.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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An Electrochemical DNA Biosensor Developed on a Nanocomposite Platform of Gold and Poly(propyleneimine) Dendrimer. SENSORS 2008; 8:6791-6809. [PMID: 27873900 PMCID: PMC3787416 DOI: 10.3390/s8116791] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 10/22/2008] [Accepted: 10/27/2008] [Indexed: 11/26/2022]
Abstract
An electrochemical DNA nanobiosensor was prepared by immobilization of a 20mer thiolated probe DNA on electro-deposited generation 4 (G4) poly(propyleneimine) dendrimer (PPI) doped with gold nanoparticles (AuNP) as platform, on a glassy carbon electrode (GCE). Field emission scanning electron microscopy results confirmed the co-deposition of PPI (which was linked to the carbon electrode surface by C-N covalent bonds) and AuNP ca 60 nm. Voltammetric interrogations showed that the platform (GCE/PPI-AuNP) was conducting and exhibited reversible electrochemistry (E°′ = 235 mV) in pH 7.2 phosphate buffer saline solution (PBS) due to the PPI component. The redox chemistry of PPI was pH dependent and involves a two electron, one proton process, as interpreted from a 28 mV/pH value obtained from pH studies. The charge transfer resistance (Rct) from the electrochemical impedance spectroscopy (EIS) profiles of GCE/PPI-AuNP monitored with ferro/ferricyanide (Fe(CN)63-/4-) redox probe, decreased by 81% compared to bare GCE. The conductivity (in PBS) and reduced Rct (in Fe(CN)63-/4-) values confirmed PPI-AuNP as a suitable electron transfer mediator platform for voltammetric and impedimetric DNA biosensor. The DNA probe was effectively wired onto the GCE/PPI-AuNP via Au-S linkage and electrostatic interactions. The nanobiosensor responses to target DNA which gave a dynamic linear range of 0.01 - 5 nM in PBS was based on the changes in Rct values using Fe(CN)63-/4- redox probe.
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