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Calosi M, Guazzelli E, Braccini S, Lessi M, Bellina F, Galli G, Martinelli E. Self-Assembled Amphiphilic Fluorinated Random Copolymers for the Encapsulation and Release of the Hydrophobic Combretastatin A-4 Drug. Polymers (Basel) 2022; 14:polym14040774. [PMID: 35215686 PMCID: PMC8880340 DOI: 10.3390/polym14040774] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/03/2022] [Accepted: 02/12/2022] [Indexed: 02/07/2023] Open
Abstract
Water-soluble amphiphilic random copolymers composed of tri(ethylene glycol) methacrylate (TEGMA) or poly(ethylene glycol) methyl ether methacrylate (PEGMA) and perfluorohexylethyl acrylate (FA) were synthesized by ARGET-ATRP, and their self-assembling and thermoresponsive behavior in water was studied by dynamic light scattering (DLS) and UV-vis spectroscopy. The copolymer ability to self-fold in single-chain nano-sized structures (unimer micelles) in aqueous solutions was exploited to encapsulate Combretastatin A-4 (CA-4), which is a very hydrophobic anticancer drug. The cloud point temperature (Tcp) was found to linearly decrease with increasing drug concentration in the drug/copolymer system. Moreover, while CA-4 was preferentially incorporated into the unimer micelles of TEGMA-ran-FA, the drug was found to induce multi-chain, submicro-sized aggregation of PEGMA-ran-FA. Anyway, the encapsulation efficiency was very high (≥81%) for both copolymers. The drug release was evaluated in PBS aqueous solutions both below and above Tcp for TEGMA-ran-FA copolymer and below Tcp, but at two different drug loadings, for PEGMA-ran-FA copolymer. In any case, the release kinetics presented similar profiles, characterized by linear trends up to ≈10–13 h and ≈7 h for TEGMA-ran-FA and PEGMA-ran-FA, respectively. Then, the release rate decreased, reaching a plateau. The release from TEGMA-ran-FA was moderately faster above Tcp than below Tcp, suggesting that copolymer thermoresponsiveness increased the release rate, which occurred anyway by diffusion below Tcp. Cytotoxicity tests were carried out on copolymer solutions in a wide concentration range (5–60 mg/mL) at 37 °C by using Balb/3T3 clone A31 cells. Interestingly, it was found that the concentration-dependent micro-sized aggregation of the amphiphilic random copolymers above Tcp caused a sort of “cellular asphyxiation” with a loss of cell viability clearly visible for TEGMA-ran-FA solutions (Tcp below 37 °C) with higher copolymer concentrations. On the other hand, cells in contact with the analogous PEGMA-ran-FA (Tcp above 37 °C) presented a very good viability (≥75%) with respect to the control at any given concentration.
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Fluorinated vs. Zwitterionic-Polymer Grafted Surfaces for Adhesion Prevention of the Fungal Pathogen Candida albicans. Polymers (Basel) 2020; 12:polym12020398. [PMID: 32050664 PMCID: PMC7077729 DOI: 10.3390/polym12020398] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/05/2020] [Accepted: 02/07/2020] [Indexed: 11/17/2022] Open
Abstract
Fluorinated (F6) and zwitterionic, as well as phosphorylcholine (MPC) and sulfobetaine (MSA), copolymers containing a low amount (1 and 5 mol%) of 3-(trimethoxysilyl)propyl methacrylate (PTMSi) were prepared and covalently grafted to glass slides by using the trimethoxysilyl groups as anchorage points. Glass-surface functionalization and polymer-film stability upon immersion in water were proven by contact angle and angle-resolved X-ray photoelectron spectroscopy (AR-XPS) measurements. Antifouling performance of the grafted films was assayed against the yeast Candida albicans, the most common Candida species, which causes over 80% of candidiasis. Results revealed that the F6 fluorinated, hydrophobic copolymers performed much better in reducing the adhesion of C. albicans, with respect to both corresponding zwitterionic, hydrophilic MPC and MSA counterparts, and were similar to the glass negative control, which is well-known to inhibit the adhesion of C. albicans. A composition-dependent activity was also found, with the films of copolymer with 99 mol% F6 fluorinated co-units performing best.
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Martini F, Guazzelli E, Martinelli E, Borsacchi S, Geppi M, Galli G. Molecular Dynamics of Amphiphilic Random Copolymers in the Bulk: A
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F NMR Relaxometry Study. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Francesca Martini
- Dipartimento di Chimica e Chimica Industriale Università di Pisa via G. Moruzzi 13 56124 Pisa Italy
- Consiglio Nazionale delle Ricerche–CNR Istituto di Chimica dei Composti OrganoMetallici Sede Secondaria di Pisa via G. Moruzzi 1 56124 Pisa Italy
| | - Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale Università di Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale Università di Pisa via G. Moruzzi 13 56124 Pisa Italy
| | - Silvia Borsacchi
- Consiglio Nazionale delle Ricerche–CNR Istituto di Chimica dei Composti OrganoMetallici Sede Secondaria di Pisa via G. Moruzzi 1 56124 Pisa Italy
| | - Marco Geppi
- Dipartimento di Chimica e Chimica Industriale Università di Pisa via G. Moruzzi 13 56124 Pisa Italy
- Consiglio Nazionale delle Ricerche–CNR Istituto di Chimica dei Composti OrganoMetallici Sede Secondaria di Pisa via G. Moruzzi 1 56124 Pisa Italy
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale Università di Pisa via G. Moruzzi 13 56124 Pisa Italy
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Guazzelli E, Martinelli E, Galli G, Cupellini L, Jurinovich S, Mennucci B. Single-chain self-folding in an amphiphilic copolymer: An integrated experimental and computational study. POLYMER 2019. [DOI: 10.1016/j.polymer.2018.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Guazzelli E, Masotti E, Biver T, Pucci A, Martinelli E, Galli G. The self-assembly over nano- to submicro-length scales in water of a fluorescent julolidine-labeled amphiphilic random terpolymer. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/pola.28955] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Elisa Guazzelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Elena Masotti
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Tarita Biver
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Andrea Pucci
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
| | - Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale; Università di Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
- INSTM, UdR Pisa, Via G. Moruzzi 13; Pisa 56124 Italy
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6
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PDMS-based films containing surface-active amphiphilic block copolymers to combat fouling from barnacles B. amphitrite and B. improvisus. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Xu M, Ge Z, Lu X, Mo H, Ji Y, Hu H. Fluorinated glycidyl azide polymers as potential energetic binders. RSC Adv 2017. [DOI: 10.1039/c7ra08929e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel fluorinated GAP energetic polymer was synthesized through copolymerization and azidation reaction.
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Affiliation(s)
- Minghui Xu
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an 710065
- China
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
| | - Zhongxue Ge
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Xianming Lu
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Hongchang Mo
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Yueping Ji
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Huaiming Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710127
- China
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Karamane M, Raihane M, Tasdelen MA, Uyar T, Lahcini M, Ilsouk M, Yagci Y. Preparation of fluorinated methacrylate/clay nanocomposite viain-situpolymerization: Characterization, structure, and properties. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28403] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Mohamed Karamane
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials Faculty of Sciences and Technologies; Cadi-Ayyad University; Marrakech 40000 Morocco
| | - Mustapha Raihane
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials Faculty of Sciences and Technologies; Cadi-Ayyad University; Marrakech 40000 Morocco
| | - Mehmet Atilla Tasdelen
- Department of Polymer Engineering Faculty of Engineering; Yalova University; Yalova TR-77100 Turkey
| | - Tamer Uyar
- UNAM-Institute of Materials Science and Nanotechnology Bilkent University; Ankara TR-06800 Turkey
| | - Mohamed Lahcini
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials Faculty of Sciences and Technologies; Cadi-Ayyad University; Marrakech 40000 Morocco
| | - Mohamed Ilsouk
- Laboratory of Organometallic and Macromolecular Chemistry-Composites Materials Faculty of Sciences and Technologies; Cadi-Ayyad University; Marrakech 40000 Morocco
| | - Yusuf Yagci
- Department of Chemistry Faculty of Science and Letters; Istanbul Technical University; Maslak Istanbul TR-34469 Turkey
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi Arabia
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Galli G, Barsi D, Martinelli E, Glisenti A, Finlay JA, Callow ME, Callow JA. Copolymer films containing amphiphilic side chains of well-defined fluoroalkyl-segment length with biofouling-release potential. RSC Adv 2016. [DOI: 10.1039/c6ra15104c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Novel methacrylate copolymers containing polysiloxane (SiMA) and mixed poly(ethyleneglycol)-perfluorohexyl side chains (MEF) were synthesised and dispersed as surface-active additives in crosslinked PDMS films.
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Affiliation(s)
- Giancarlo Galli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | - David Barsi
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | - Elisa Martinelli
- Dipartimento di Chimica e Chimica Industriale and UdR Pisa INSTM
- Università di Pisa
- 56124 Pisa
- Italy
| | | | - John A. Finlay
- School of Biosciences
- University of Birmingham
- Birmingham B15 2TT
- UK
| | | | - James A. Callow
- School of Biosciences
- University of Birmingham
- Birmingham B15 2TT
- UK
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10
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Synthesis of aliphatic polyamide bearing fluorinated groups from ε-caprolactam and modified cyclic lysine. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.08.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Surface Chemistry of Amphiphilic Polysiloxane/Triethyleneglycol-Modified Poly(pentafluorostyrene) Block Copolymer Films Before and After Water Immersion. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500221] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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12
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Zhang Q, Wang Q, Jiang J, Zhan X, Chen F. Microphase Structure, Crystallization Behavior, and Wettability Properties of Novel Fluorinated Copolymers Poly(perfluoroalkyl acrylate-co-stearyl acrylate) Containing Short Perfluorohexyl Chains. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:4752-4760. [PMID: 25851270 DOI: 10.1021/la504467m] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Novel fluorinated copolymers of stearyl acrylate (SA) and (perfluorohexyl)ethyl acrylate (C6A), (perfluorohexyl)ethyl methacrylate (C6MA), 2-[[[[2-(perfluorohexyl)]-sulfonyl]methyl] amino]ethyl acrylate (C6SA), and methacrylate (C6SMA) were synthesized via miniemulsion copolymerization. The extremely hydrophobic monomers perfluoroalkyl acrylate (FA) and SA acted as the reactive costabilizer in the miniemulsion system. The microstructure and surface wetting properties of the copolymers were characterized by (1)H NMR, FT-IR, and dynamic contact angle test. The crystallization behaviors and fine surface structures of the copolymer films were determined by differential scanning calorimetry (DSC) and wide-angle X-ray diffraction (WAXD) analysis. The self-assembled aggregation and roughness of the copolymer films were investigated by atomic force microscopy (AFM). The results showed that the fluorinated side chains interrupted and impeded the crystallizable side chains of SA from forming complete crystals. And the Tm and ΔHf of the copolymers were decreased as a consequence of this effect. The fluorinated side chains in P(C6A/SA) and P(C6MA/SA) arranged between the crystallizable hydrocarbon side chains of SA, while the crystallization structure of fluorinated and nonfluorinated pendant groups existed all at once in copolymers P(C6SA/SA) and P(C6SMA/SA). The four copolymers exhibited very low surface free energy and excellent dynamic water repellency attributed to the restriction of perfluoroalkyl groups combined with crystallization of stearyl pendant groups.
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Affiliation(s)
- Qinghua Zhang
- †College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Qiongyan Wang
- †College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- ‡Research and Development Center, Zhejiang Sucon Silicone Co., Ltd., Shaoxing, 312088, P. R. China
| | - Jingxian Jiang
- †College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xiaoli Zhan
- †College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
| | - Fengqiu Chen
- †College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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13
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Ping J, Qiao Y, Tian H, Shen Z, Fan XH. Synthesis and Properties of a Coil-g-Rod Polymer Brush by Combination of ATRP and Alternating Copolymerization. Macromolecules 2015. [DOI: 10.1021/ma502414m] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jing Ping
- Beijing
National Laboratory for Molecular Sciences, Department of Polymer
Science and Engineering, and Key Laboratory of Polymer Chemistry and
Physics of Ministry of Education, Center for Soft Matter Science and
Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yangyang Qiao
- Beijing
National Laboratory for Molecular Sciences, Department of Polymer
Science and Engineering, and Key Laboratory of Polymer Chemistry and
Physics of Ministry of Education, Center for Soft Matter Science and
Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
- School
of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, China
| | - Haijian Tian
- Beijing
National Laboratory for Molecular Sciences, Department of Polymer
Science and Engineering, and Key Laboratory of Polymer Chemistry and
Physics of Ministry of Education, Center for Soft Matter Science and
Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhihao Shen
- Beijing
National Laboratory for Molecular Sciences, Department of Polymer
Science and Engineering, and Key Laboratory of Polymer Chemistry and
Physics of Ministry of Education, Center for Soft Matter Science and
Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xing-He Fan
- Beijing
National Laboratory for Molecular Sciences, Department of Polymer
Science and Engineering, and Key Laboratory of Polymer Chemistry and
Physics of Ministry of Education, Center for Soft Matter Science and
Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Luo Y, Sun J, Jin K, Wang J, Huang G, Fang Q. Propargyl ether-functionalized poly(m-phenylene): a new precursor for the preparation of polymers with high modulus and high Tg. RSC Adv 2015. [DOI: 10.1039/c5ra01515d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A propargyl ether-functionalized poly(m-phenylene) (PE-PMP) is reported here.
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Affiliation(s)
- Yijie Luo
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Jing Sun
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Kaikai Jin
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Jiajia Wang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
| | - Guangsu Huang
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P. R. China
| | - Qiang Fang
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- P. R. China
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16
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Rhodium-catalyzed hydrothiolation of alkynes with thiols for construction of sulfur-containing π-conjugated systems. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1639-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Zhou S, Zhou Y, Tian H, Zhu Y, Pan Y, Zhou F, Zhang Q, Shen Z, Fan X. Synthesis of comb polyphenylenes by Suzuki coupling from AB macromonomers. ACTA ACUST UNITED AC 2014. [DOI: 10.1002/pola.27167] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Sheng Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Yu Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Haijian Tian
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Yufeng Zhu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Yu Pan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Feng Zhou
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Qikai Zhang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Zhihao Shen
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
| | - Xinghe Fan
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, College of Chemistry and Molecular Engineering, Peking UniversityBeijing100871 China
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Ag D, Seleci M, Bongartz R, Can M, Yurteri S, Cianga I, Stahl F, Timur S, Scheper T, Yagci Y. From invisible structures of SWCNTs toward fluorescent and targeting architectures for cell imaging. Biomacromolecules 2013; 14:3532-41. [PMID: 23987303 DOI: 10.1021/bm400862m] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Single-walled carbon nanotubes (SWNTs) are unique nanostructures used as cargo systems for variety of diagnostic and therapeutic agents. For taking advantage of these structures in biological processes, they should be visible. Therefore, fluorescence labeling of SWCNTs with various probes is a significant issue. Herein, we demonstrate a simple approach for cell specific imaging and diagnosis by combining SWCNTs with a copolymer poly(para-phenylene) (PPP) containing polystyrene (PSt) and poly(ε-caprolactone) (PCL) side chains (PPP-g-PSt-PCL). In this approach PPP-g-PSt-PCL is noncovalently attached on carboxyl functional SWCNTs. The obtained fluorescent probe is bound to folic acid (FA) for targeted imaging of folate receptor (FR) positive HeLa cells. In vitro studies demonstrate that this conjugate can specifically bind to HeLa cells and indicate great potential for targeting and imaging studies.
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Affiliation(s)
- Didem Ag
- Department of Biochemistry, Faculty of Science, Ege University , 35100 Bornova-Izmir, Turkey
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