1
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Kausar A. Poly(methyl methacrylate)/Fullerene nanocomposite—Factors and applications. POLYM-PLAST TECH MAT 2022. [DOI: 10.1080/25740881.2021.1995422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center for Physics, Quaid-I-Azam University Campus, Islamabad, Pakistan
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2
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Abstract
This review surveys recent progress towards robust chiral nanostructure fabrication techniques using synthetic helical polymers, the unique inferred properties that these materials possess, and their intricate connection to natural, biological chirality.
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Affiliation(s)
| | - James F. Reuther
- Department of Chemistry
- University of Massachusetts Lowell
- Lowell
- USA
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3
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Kajihara K, Tousya I, Ueno T, Kawauchi T. Influence of the Primary Structure of Syndiotactic Poly(Methyl Methacrylate) on the Inclusion Complex Formation with [60]Fullerene: Robustness of the Helix against Primary Structural Errors. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c02046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kouta Kajihara
- Department of Materials Chemistry, Faculty of Advanced Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
| | - Ituki Tousya
- Department of Materials Chemistry, Faculty of Advanced Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
| | - Tomohiro Ueno
- Department of Materials Chemistry, Faculty of Advanced Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
| | - Takehiro Kawauchi
- Department of Materials Chemistry, Faculty of Advanced Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
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4
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Li X, Wang L, Liu H, Fu J, Zhen L, Li Y, Zhang Y, Zhang Y. C 60 Fullerenes Suppress Reactive Oxygen Species Toxicity Damage in Boar Sperm. NANO-MICRO LETTERS 2019; 11:104. [PMID: 34138040 PMCID: PMC7770955 DOI: 10.1007/s40820-019-0334-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 10/29/2019] [Indexed: 05/22/2023]
Abstract
We report the carboxylated C60 improved the survival and quality of boar sperm during liquid storage at 4 °C and thus propose the use of carboxylated C60 as a novel antioxidant semen extender supplement. Our results demonstrated that the sperm treated with 2 μg mL-1 carboxylated C60 had higher motility than the control group (58.6% and 35.4%, respectively; P ˂ 0.05). Moreover, after incubation with carboxylated C60 for 10 days, acrosome integrity and mitochondrial activity of sperm increased by 18.1% and 34%, respectively, compared with that in the control group. Similarly, the antioxidation abilities and adenosine triphosphate levels in boar sperm treated with carboxylated C60 significantly increased (P ˂ 0.05) compared with those in the control group. The presence of carboxylated C60 in semen extender increases sperm motility probably by suppressing reactive oxygen species (ROS) toxicity damage. Interestingly, carboxylated C60 could protect boar sperm from oxidative stress and energy deficiency by inhibiting the ROS-induced protein dephosphorylation via the cAMP-PKA signaling pathway. In addition, the safety of carboxylated C60 as an alternative antioxidant was also comprehensively evaluated by assessing the mean litter size and number of live offspring in the carboxylated C60 treatment group. Our findings confirm carboxylated C60 as a novel antioxidant agent and suggest its use as a semen extender supplement for assisted reproductive technology in domestic animals.
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Affiliation(s)
- Xinhong Li
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
| | - Lirui Wang
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Huan Liu
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Jieli Fu
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Linqing Zhen
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yuhua Li
- Shanghai Key Laboratory of Veterinary Biotechnology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Yaozhong Zhang
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, USA
| | - Yafei Zhang
- Key Laboratory of Thin Film and Microfabrication (Ministry of Education), Department of Micro/Nano Electronics, School of Electronics, Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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5
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Kawauchi T, Ohnishi K, Kajihara K, Kawauchi M, Takeichi T. Polymer Alloying of Helical Syndiotactic PMMA with [60]Fullerene-End-Capped Polymers through Inclusion Complex Formation of the Helical Cavity with Fullerene Units. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takehiro Kawauchi
- Department of Materials Chemistry, Faculty of Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
| | - Keita Ohnishi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Kouta Kajihara
- Department of Materials Chemistry, Faculty of Science and Technology, Ryukoku University, Oe-cho, Seta, Otsu, Shiga 520-2194, Japan
| | - Mariko Kawauchi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
| | - Tsutomu Takeichi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan
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6
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Choinopoulos I. Grubbs' and Schrock's Catalysts, Ring Opening Metathesis Polymerization and Molecular Brushes-Synthesis, Characterization, Properties and Applications. Polymers (Basel) 2019; 11:E298. [PMID: 30960282 PMCID: PMC6419171 DOI: 10.3390/polym11020298] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/08/2019] [Accepted: 02/09/2019] [Indexed: 12/20/2022] Open
Abstract
In this review, molecular brushes and other macromolecular architectures bearing a bottlebrush segment where the main chain is synthesized by ring opening metathesis polymerization (ROMP) mediated by Mo or Ru metal complexes are considered. A brief review of metathesis and ROMP is presented in order to understand the problems and the solutions provided through the years. The synthetic strategies towards bottlebrush copolymers are demonstrated and each one discussed separately. The initiators/catalysts for the synthesis of the backbone with ROMP are discussed. Syntheses of molecular brushes are presented. The most interesting properties of the bottlebrushes are detailed. Finally, the applications studied by different groups are presented.
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Affiliation(s)
- Ioannis Choinopoulos
- Department of Chemistry, Industrial Chemistry Laboratory, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
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7
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Li J, Tadakamalla D, Rogachev AY. Modulating stability of functionalized fullerene cations [R-C 60
] +
with the nature of R-group. J Comput Chem 2018; 39:2385-2396. [DOI: 10.1002/jcc.25579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 01/26/2023]
Affiliation(s)
- Jingbai Li
- Department of Chemistry; Illinois Institute of Technology; Chicago Illinois, 60616
| | - Divya Tadakamalla
- Department of Chemistry; Illinois Institute of Technology; Chicago Illinois, 60616
| | - Andrey Yu. Rogachev
- Department of Chemistry; Illinois Institute of Technology; Chicago Illinois, 60616
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8
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Control of assembly size of poly (methacrylic acid)-grafted fullerenes in aqueous solution. JOURNAL OF POLYMER RESEARCH 2018. [DOI: 10.1007/s10965-018-1575-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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9
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Usuki N, Satoh K, Kamigaito M. Synthesis of Isotactic-block-Syndiotactic Poly(methyl Methacrylate) via Stereospecific Living Anionic Polymerizations in Combination with Metal-Halogen Exchange, Halogenation, and Click Reactions. Polymers (Basel) 2017; 9:E723. [PMID: 30966020 PMCID: PMC6418547 DOI: 10.3390/polym9120723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/07/2017] [Accepted: 12/14/2017] [Indexed: 12/25/2022] Open
Abstract
Isotactic (it-) and syndiotactic (st-) poly(methyl methacrylate)s (PMMAs) form unique crystalline stereocomplexes, which are attractive from both fundamental and application viewpoints. This study is directed at the efficient synthesis of it- and st-stereoblock (it-b-st-) PMMAs via stereospecific living anionic polymerizations in combination with metal-halogen exchange, halogenation, and click reactions. The azide-capped it-PMMA was prepared by living anionic polymerization of MMA, which was initiated with t-BuMgBr in toluene at ⁻78 °C, and was followed by termination using CCl₄ as the halogenating agent in the presence of a strong Lewis base and subsequent azidation with NaN₃. The alkyne-capped st-PMMA was obtained by living anionic polymerization of MMA, which was initiated via an in situ metal-halogen exchange reaction between 1,1-diphenylhexyl lithium and an α-bromoester bearing a pendent silyl-protected alkyne group. Finally, copper-catalyzed alkyne-azide cycloaddition (CuAAC) between these complimentary pairs of polymers resulted in a high yield of it-b-st-PMMAs, with controlled molecular weights and narrow molecular weight distributions. The stereocomplexation was evaluated in CH₃CN and was affected by the block lengths and ratios.
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Affiliation(s)
- Naoya Usuki
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
| | - Kotaro Satoh
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
- Precursory Research for Embryonic Science and Technology, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.
| | - Masami Kamigaito
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
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10
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Ousaka N, Mamiya F, Iwata Y, Nishimura K, Yashima E. "Helix-in-Helix" Superstructure Formation through Encapsulation of Fullerene-Bound Helical Peptides within a Helical Poly(methyl methacrylate) Cavity. Angew Chem Int Ed Engl 2017; 56:791-795. [PMID: 28000337 PMCID: PMC5248627 DOI: 10.1002/anie.201611349] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Indexed: 12/20/2022]
Abstract
A one-handed 310 -helical hexapeptide is efficiently encapsulated within the helical cavity of st-PMMA when a fullerene (C60 ) derivative is introduced at the C-terminal end of the peptide. The encapsulation is accompanied by induction of a preferred-handed helical conformation in the st-PMMA backbone with the same-handedness as that of the hexapeptide to form a crystalline st-PMMA/peptide-C60 inclusion complex with a unique optically active helix-in-helix structure. Although the st-PMMA is unable to encapsulate the 310 -helical peptide without the terminal C60 unit, the helical hollow space of the st-PMMA is almost filled by the C60 -bound peptides. This result suggests that the C60 moiety can serve as a versatile molecular carrier of specific molecules and polymers in the helical cavity of the st-PMMA for the formation of an inclusion complex, thus producing unique supramolecular soft materials that cannot be prepared by other methods.
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Affiliation(s)
- Naoki Ousaka
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya UniversityChikusa-kuNagoya464-8603Japan
| | - Fumihiko Mamiya
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya UniversityChikusa-kuNagoya464-8603Japan
| | - Yoshiaki Iwata
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya UniversityChikusa-kuNagoya464-8603Japan
| | - Katsuyuki Nishimura
- Institute for Molecular Science38 Nishigo-Naka, MyodaijiOkazaki444-8585Japan
| | - Eiji Yashima
- Department of Molecular Design and EngineeringGraduate School of EngineeringNagoya UniversityChikusa-kuNagoya464-8603Japan
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11
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Shi Z, Guo F, Tan R, Niu H, Li T, Li Y. “Arm-first” approach for the synthesis of star-shaped stereoregular polymers through living coordination polymerization. Polym Chem 2017. [DOI: 10.1039/c6py02097f] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Stereoregular star polymers were synthesized through an “arm-first” approach via a living coordination polymerization mechanism for the first time using a half-sandwich scandium catalyst system.
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Affiliation(s)
- Zhenghai Shi
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
| | - Fang Guo
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
| | - Rui Tan
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
| | - Hui Niu
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
| | - Tingting Li
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
| | - Yang Li
- State Key Laboratory of Fine Chemicals
- Liaoning Key Laboratory of Polymer Science and Engineering
- Department of Polymer Science and Engineering
- School of Chemical Engineering
- Dalian University of Technology
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12
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Ousaka N, Mamiya F, Iwata Y, Nishimura K, Yashima E. “Helix‐in‐Helix” Superstructure Formation through Encapsulation of Fullerene‐Bound Helical Peptides within a Helical Poly(methyl methacrylate) Cavity. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201611349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Naoki Ousaka
- Department of Molecular Design and Engineering Graduate School of Engineering Nagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Fumihiko Mamiya
- Department of Molecular Design and Engineering Graduate School of Engineering Nagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Yoshiaki Iwata
- Department of Molecular Design and Engineering Graduate School of Engineering Nagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Katsuyuki Nishimura
- Institute for Molecular Science 38 Nishigo-Naka, Myodaiji Okazaki 444-8585 Japan
| | - Eiji Yashima
- Department of Molecular Design and Engineering Graduate School of Engineering Nagoya University Chikusa-ku Nagoya 464-8603 Japan
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