1
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Coca-Hidalgo JJ, Recillas-Mota M, Fernández-Quiroz D, Lizardi-Mendoza J, Peniche-Covas C, Goycoolea FM, Argüelles-Monal WM. Study of the Thermal Phase Transition of Poly( N,N-diethylacrylamide- co- N-ethylacrylamide) Random Copolymers in Aqueous Solution. Polymers (Basel) 2024; 16:1575. [PMID: 38891521 PMCID: PMC11175111 DOI: 10.3390/polym16111575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2024] [Revised: 05/29/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
N-alkyl-substituted polyacrylamides exhibit a thermal coil-to-globule transition in aqueous solution driven by an increase in hydrophobic interactions with rising temperature. With the aim of understanding the role of N-alkyl substituents in the thermal transition, this study focuses on the molecular interactions underlying the phase transition of poly(N,N-diethylacrylamide-co-N-ethylacrylamide) random copolymers. Poly(N,N-diethylacrylamide) (PDEAm), poly(N-ethylacrylamide) (PNEAm), and their random copolymers were synthesized by free radical polymerization and their chemical structure characterized spectroscopically. It was found that the values of the cloud-point temperature increased with PNEAm content, and particle aggregation processes took place, increasing the negative charge density on their surface. The cloud-point temperature of each copolymer decreased with respect to the theoretical values calculated assuming an absence of interactions. It is attributed to the formation of intra- and interchain hydrogen bonding in aqueous solutions. These interactions favor the formation of more hydrophobic macromolecular segments, thereby promoting the cooperative nature of the transition. These results definitively reveal the dominant mechanism occurring during the phase transition in the aqueous solutions of these copolymers.
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Affiliation(s)
- José Javier Coca-Hidalgo
- Centro de Investigación en Alimentación y Desarrollo, Hermosillo 83304, Mexico; (J.J.C.-H.); (M.R.-M.); (J.L.-M.)
| | - Maricarmen Recillas-Mota
- Centro de Investigación en Alimentación y Desarrollo, Hermosillo 83304, Mexico; (J.J.C.-H.); (M.R.-M.); (J.L.-M.)
| | - Daniel Fernández-Quiroz
- Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, Hermosillo 83000, Mexico;
| | - Jaime Lizardi-Mendoza
- Centro de Investigación en Alimentación y Desarrollo, Hermosillo 83304, Mexico; (J.J.C.-H.); (M.R.-M.); (J.L.-M.)
| | | | | | - Waldo M. Argüelles-Monal
- Centro de Investigación en Alimentación y Desarrollo, Hermosillo 83304, Mexico; (J.J.C.-H.); (M.R.-M.); (J.L.-M.)
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2
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Kudo R, Samitsu S, Mori H. Self-healing amino acid-bearing acrylamides/ n-butyl acrylate copolymers via multiple noncovalent bonds. RSC Adv 2024; 14:7850-7857. [PMID: 38449826 PMCID: PMC10915467 DOI: 10.1039/d4ra00800f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 02/19/2024] [Indexed: 03/08/2024] Open
Abstract
Four amino acid-bearing acrylamides, N-acryloyl-l-threonine (AThrOH), N-acryloyl-l-glutamic acid (AGluOH), N-acryloyl-l-phenylalanine (APheOH), and N-acryloyl-l, l-diphenylalanine (APhePheOH), were selected for copolymerization with n-butyl acrylate (nBA) to develop amino acid-based self-healable copolymers. A series of copolymers comprising amino acid-bearing acrylamides and nBA with tunable comonomer compositions and molecular weights were synthesized by free radical and reversible addition-fragmentation chain-transfer copolymerization. Self-healing and mechanical properties originated from the noncovalent bonds between the carboxyl, hydroxyl, and amide groups, and π-π stacking interactions among the amino acid residues in the side chains were evaluated. Among these copolymers, P(nBA-co-AGluOH) with suitable comonomer compositions and molecular weights (nBA : AGluOH = 82 : 18, Mn = 18 300, Mw/Mn = 2.58) exhibited good mechanical properties (modulus of toughness = 17.3 MJ m-3) and self-healing under ambient conditions. The multiple noncovalent bonds of P(nBA-co-AGluOH)s were also efficient in improving the optical properties with an enhanced refractive index and good transparency.
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Affiliation(s)
- Ryo Kudo
- Department of Organic Material Science, Graduate School of Organic Materials Science, Yamagata University 4-3-16, Jonan Yonezawa City Yamagata Prefecture 992-8510 Japan
| | - Sadaki Samitsu
- National Institute for Materials Science 1-2-1, Sengen Tsukuba 305-0047 Japan
| | - Hideharu Mori
- Department of Organic Material Science, Graduate School of Organic Materials Science, Yamagata University 4-3-16, Jonan Yonezawa City Yamagata Prefecture 992-8510 Japan
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3
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Synthesis & characterization of amino acid-based acrylamide derived amphiphilic block copolymer using a new xanthate and its influence on cell cytotoxicity & cell viability. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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4
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5
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Feng W, Huang Z, Kang X, Zhao D, Li H, Li G, Xu J, Wang X. Self-Assembled Nanosized Vehicles from Amino Acid-Based Amphiphilic Polymers with Pendent Carboxyl Groups for Efficient Drug Delivery. Biomacromolecules 2021; 22:4871-4882. [PMID: 34636237 DOI: 10.1021/acs.biomac.1c01164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Developing safe and efficient delivery vehicles for chemotherapeutic drugs has been a long-standing demanding. Amino acid-based polymers are promising candidates to address this challenge due to their excellent biocompatibility and biodegradation. Herein, a series of well-defined amphiphilic block copolymers were prepared by PET-RAFT polymerization of N-acryloyl amino acid monomers. By altering monomer types and the block ratio of the copolymers, the copolymers self-assembled into nanostructures with various morphologies, including spheres, rod-like, fibers, and lamellae via hydrophobic and hydrogen bonding interactions. Significantly, the nanoparticles (NPs) assembled from amphiphilic block copolymers poly(N-acryloyl-valine)-b-poly(N-acryloyl-aspartic acid) (PV-b-PD) displayed an appealing cargo loading efficiency (21.8-32.6%) for a broad range of drugs (paclitaxel, doxorubicin (DOX), cisplatin, etc.) due to strong interactions. The DOX-loaded PV-b-PD NPs exhibited rapid cellular uptake (within 1 min) and a great therapeutic performance. These drug delivery systems provide new insights for regulating the controlled morphologies and improving the efficiency of drug delivery.
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Affiliation(s)
- Wenli Feng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zixuan Huang
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Sydney, Sydney 2052, Australia
| | - Xiaoxu Kang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Dongdong Zhao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haofei Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guofeng Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiangtao Xu
- Cluster for Advanced Macromolecular Design and Australian Centre for NanoMedicine, School of Chemical Engineering, UNSW Sydney, Sydney 2052, Australia
| | - Xing Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing 100029, China
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6
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Masuko K, Kumano C, Sugawara R, Nakabayashi K, Mori H. Polymerization‐induced self‐assembly of amino‐acid‐based nano‐objects by reversible addition–fragmentation chain‐transfer dispersion polymerization. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Kazunori Masuko
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | - Chiharu Kumano
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | - Ryo Sugawara
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
| | | | - Hideharu Mori
- Graduate School of Organic Materials Science Yamagata University Yonezawa Japan
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7
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Biswas G, Jena BC, Samanta P, Mandal M, Dhara D. Synthesis, self-assembly and drug release study of a new dual-responsive biocompatible block copolymer containing phenylalanine derivative. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2021. [DOI: 10.1080/10601325.2021.1947748] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Gargi Biswas
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Bikash Chandra Jena
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Pousali Samanta
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Mahitosh Mandal
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| | - Dibakar Dhara
- Department of Chemistry, Indian Institute of Technology, Kharagpur, West Bengal, India
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8
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Kanto R, Yonenuma R, Yamamoto M, Furusawa H, Yano S, Haruki M, Mori H. Mixed Polyplex Micelles with Thermoresponsive and Lysine-Based Zwitterionic Shells Derived from Two Poly(vinyl amine)-Based Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3001-3014. [PMID: 33650430 DOI: 10.1021/acs.langmuir.0c02197] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Two series of poly(vinyl amine) (PVAm)-based block copolymers with zwitterionic and thermoresponsive segments were synthesized by the reversible addition-fragmentation chain transfer polymerization. A mixture of the two copolymers, poly(N-acryloyl-l-lysine) (PALysOH) and poly(N-isopropylacrylamide) (PNIPAM), which have the same cationic PVAm chain but different shell-forming segments, were used to prepare mixed polyplex micelles with DNA. Both PVAm-b-PALysOH and PVAm-b-PNIPAM showed low cytotoxicity, with characteristic assembled structures and stimuli-responsive properties. The cationic PVAm segment in both block copolymers showed site-specific interactions with DNA, which were evaluated by dynamic light scattering, zeta potential, circular dichroism, agarose gel electrophoresis, atomic force microscopy, and transmission electron microscopy measurements. The PVAm-b-PNIPAM/DNA polyplexes showed the characteristic temperature-induced formation of assembled structures in which the polyplex size, surface charge, chiroptical property of DNA, and polymer-DNA binding were governed by the nitrogen/phosphate (N/P) ratio. The DNA binding strength and colloidal stability of the PVAm-b-PALysOH/DNA polyplexes could be tuned by introducing an appropriate amount of zwitterionic PALysOH functionality, while maintaining the polyplex size, surface charge, and chiroptical property, regardless of the N/P ratio. The mixed polyplex micelles showed temperature-induced stability originating from the hydrophobic (dehydrated) PNIPAM chains upon heating, and remarkable stability under salty conditions owing to the presence of the zwitterionic PALysOH chain on the polyplex surface.
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Affiliation(s)
- Ryosuke Kanto
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Ryo Yonenuma
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Mizuki Yamamoto
- Department of Chemical Biology and Applied Chemistry, College of Engineering, Nihon University, 1 Nakagawara, Tokusada, Tamuramachi, Koriyama, Fukushima 963-8642, Japan
| | - Hiroyuki Furusawa
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Shigekazu Yano
- Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Mitsuru Haruki
- Department of Chemical Biology and Applied Chemistry, College of Engineering, Nihon University, 1 Nakagawara, Tokusada, Tamuramachi, Koriyama, Fukushima 963-8642, Japan
| | - Hideharu Mori
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
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9
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Biswas CS, Biswas A, Galluzzi M, Shekh MI, Wang Q, Ray B, Maiti P, Stadler FJ. Synthesis and characterization of novel amphiphilic biocompatible block-copolymers of poly(N-isopropylacrylamide)-b-poly(l-phenylalanine methyl ester) by RAFT polymerization. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122760] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Multi-stimuli-responsive chiral-achiral ampholytic block copolymers composed of poly(N-acryloyl amino acid) and poly(vinyl amine). REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104540] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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11
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Mogami H, Mori H. Enhanced Heat Resistance and Adhesive Strength of Styrene-Acrylic Triblock Copolymer Elastomers by Incorporating Acrylic Acid. ACS OMEGA 2020; 5:3678-3688. [PMID: 32118183 PMCID: PMC7045544 DOI: 10.1021/acsomega.9b04282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 01/30/2020] [Indexed: 05/27/2023]
Abstract
Herein, we present an industrially applicable strategy to enhance the heat resistance and adhesive properties of ABA triblock copolymer-based elastomers composed of styrene (St) and n-butyl acrylate (nBA) by incorporating acrylic acid (AA) at different segments. Three types of triblock copolymers, namely, poly(St-r-AA)-b-poly(nBA)-b-poly(St-r-AA), poly(St)-b-poly(nBA-r-AA)-b-poly(St), and poly(St)-b-poly(nBA)-b-poly(St), were synthesized by reversible addition-fragmentation chain-transfer (RAFT) polymerization. Large-scale RAFT polymerization afforded industrially applicable AA-containing triblock copolymers with moderate molecular weights and predetermined comonomer compositions (St/nBA/AA = 15/83/2-24/73/3, number-average molecular weight (M n) = 30,000-110,000, and resulting product > 200 g). The heat resistance and pressure-sensitive adhesive properties of the triblock copolymers were evaluated. Among them, poly(St-r-AA)-b-poly(nBA)-b-poly(St-r-AA), having poly(nBA) as the middle soft segment and poly(St-r-AA) as hard segments at both ends, exhibited excellent heat creep resistance and increased adhesiveness to stainless steel. The feasibility to manipulate the heat resistance and adhesive properties by incorporating AA units into hard and soft segments, in addition to the ease of operation, high block efficiency, and metal-free nature owing to the RAFT process, is highly beneficial for practical applications of these copolymers.
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Affiliation(s)
- Hirokazu Mogami
- Department
of Organic Materials Science, Graduate School of Organic Materials
Science, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata 992-8510, Japan
- Fujikura
Kasei Co., Ltd, 5-13-1,
Sakurada, Kuki, Saitama 340-0203, Japan
| | - Hideharu Mori
- Department
of Organic Materials Science, Graduate School of Organic Materials
Science, Yamagata University, 4-3-16, Jonan, Yonezawa, Yamagata 992-8510, Japan
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12
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Long X, Xu H, Zhang D, Li J. Bioinspired by both mussel foot protein and bone sialoprotein: universal adhesive coatings for the promotion of mineralization and osteogenic differentiation. Polym Chem 2020. [DOI: 10.1039/d0py00774a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Natural protein bioinspired coatings are developed to promote the mineralization and osteogenic differentiation of MC3T3-E1 cells for implant material use.
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Affiliation(s)
- Xiaoling Long
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Huilin Xu
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Dongyue Zhang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
| | - Jianshu Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- P.R. China
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13
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Imamura R, Mori H. Protein-Stabilizing Effect of Amphiphilic Block Copolymers with a Tertiary Sulfonium-Containing Zwitterionic Segment. ACS OMEGA 2019; 4:18234-18247. [PMID: 31720524 PMCID: PMC6844099 DOI: 10.1021/acsomega.9b02209] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
Tertiary sulfonium-containing zwitterionic block copolymers consisting of N-acryloyl-l-methionine methyl sulfonium salt (A-Met(S+)-OH) and n-butyl acrylate (BA) were newly synthesized to develop a novel protein stabilizer. The zwitterionic block copolymers were prepared by reversible addition-fragmentation chain-transfer (RAFT) polymerization of BA using a hydrophilic macro-chain-transfer agent (CTA) obtained from N-acryloyl-l-methionine (A-Met-OH) and subsequent postmodification. RAFT polymerization of A-Met-OH using poly(BA) macro-CTA, followed by postmodification, also afforded the target poly(A-Met(S+)-OH)-b-poly(BA). The block copolymers stabilized horseradish peroxidase (HRP) during storage at 37 °C for 5 days, and the protein-stabilizing effect was enhanced with increase in the A-Met(S+)-OH content. In particular, the block copolymer with ∼85% A-Met(S+)-OH content showed a significant protein-stabilizing effect at a temperature (37 °C) higher than the room temperature, which is highly desirable for practical and industrial applications. The addition of sucrose into the block copolymer-protein solution led to a considerable increase in the HRP activity under the same conditions. Excellent alkaline phosphatase stabilization at 37 °C for 12 days was also achieved using the block copolymers. The zwitterionic block copolymers with the optimal hydrophilic/hydrophobic balance were found to serve as efficient protein-stabilizing agents, in comparison with the corresponding homopolymer and random copolymers. Dynamic light scattering, zeta potential, transmission electron microscopy, and circular dichroism measurements revealed that the zwitterionic block copolymer stabilizes an enzyme by wrapping with a slight change in the size, whereas the secondary and ordered structures of the enzyme are maintained.
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Affiliation(s)
- Ryutaro Imamura
- Graduate School
of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- NOF Corporation, 5-10 Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Hideharu Mori
- Graduate School
of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
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Kanto R, Qiao Y, Masuko K, Furusawa H, Yano S, Nakabayashi K, Mori H. Synthesis, Assembled Structures, and DNA Complexation of Thermoresponsive Lysine-Based Zwitterionic and Cationic Block Copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4646-4659. [PMID: 30845801 DOI: 10.1021/acs.langmuir.8b04303] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A series of anionic, zwitterionic, and cationic lysine-based block copolymers with a thermoresponsive segment were synthesized by the reversible addition-fragmentation chain transfer (RAFT) polymerization of N-acryloyl- N-carbobenzoxy-l-lysine [A-Lys(Cbz)-OH], which contains a carboxylic acid and a protected amine-functionality in the monomer unit. Carboxylic acid-containing homopolymers, poly(A-Lys(Cbz)-OH), with predetermined molecular weights with relatively low polydispersities were initially synthesized by RAFT polymerization of A-Lys(Cbz)-OH. The chain extension of the dithiocarbamate-terminated poly(A-Lys(Cbz)-OH) to N-isopropylacrylamide (NIPAM) via the RAFT process and subsequent deprotection afforded the zwitterionic block copolymer composed of thermoresponsive poly(NIPAM) and poly(A-Lys-OH), which exhibited switchability among the zwitterionic, anionic, and cationic states by pH change. The assembled structures and thermoresponsive and chiroptical properties of these block copolymers were evaluated by dynamic light scattering, circular dichroism, and turbidity measurements. Finally, the cationic block copolymer, poly(A-Lys-OMe)- b-poly(NIPAM), was obtained by the methylation of the carboxylic acid group in the zwitterionic poly(A-Lys-OH) segment. Selective interactions of DNA with the cationic poly(A-Lys-OMe) segment in the lysine-based block copolymer were further evaluated by agarose gel electrophoresis and atomic force microscopy measurements, which revealed characteristic assembled structures and temperature-responsive properties of the polyplexes.
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15
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Peng H, Rübsam K, Hu C, Jakob F, Schwaneberg U, Pich A. Stimuli-Responsive Poly( N-Vinyllactams) with Glycidyl Side Groups: Synthesis, Characterization, and Conjugation with Enzymes. Biomacromolecules 2019; 20:992-1006. [PMID: 30608144 DOI: 10.1021/acs.biomac.8b01608] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein we report the synthesis of new reactive stimuli-responsive polymers by RAFT copolymerization of glycidyl methacrylate and three cyclic N-vinyllactam derivatives. The copolymerization process was thoroughly investigated and the influence of the steric hindrance originating from the monomer structure of cyclic N-vinyllactams on the polymerization process and the properties of obtained copolymers were studied. A series of water-soluble copolymers with variable chemical composition, controlled molecular weight and narrow dispersity ( Đ) were synthesized and their properties are systematically investigated. Experimentally determined cloud points for different copolymers in aqueous solutions indicate shift of lower critical solution temperature (LCST) to lower values with the increase of GMA content in copolymers and increase of the lactam ring size. The obtained reactive stimuli-responsive copolymers can be efficiently used for encapsulation of cellulase in water-in-oil emulsions forming biohybrid nanogels. The enzymes entrapped in nanogels demonstrated significantly improved resistance against harsh store conditions, chaotropic agents, and organic solvents.
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Affiliation(s)
- Huan Peng
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry , RWTH Aachen University , Aachen , Germany.,DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
| | - Kristin Rübsam
- DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
| | - Chaolei Hu
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry , RWTH Aachen University , Aachen , Germany.,DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
| | - Felix Jakob
- Institute for Biotechnology , RWTH Aachen University , Aachen , Germany.,DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
| | - Ulrich Schwaneberg
- Institute for Biotechnology , RWTH Aachen University , Aachen , Germany.,DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
| | - Andrij Pich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular Chemistry , RWTH Aachen University , Aachen , Germany.,DWI Leibniz Institute for Interactive Materials e.V. , Aachen , Germany
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16
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Imamura R, Mori H. Synthesis of Zwitterionic Polymers Containing a Tertiary Sulfonium Group for Protein Stabilization. Biomacromolecules 2018; 20:904-915. [DOI: 10.1021/acs.biomac.8b01542] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ryutaro Imamura
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
- NOF Corporation, 5-10 Tokodai, Tsukuba, Ibaraki 300-2635, Japan
| | - Hideharu Mori
- Graduate School of Organic Materials Science, Yamagata University, 4-3-16 Jonan, Yonezawa, Yamagata 992-8510, Japan
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17
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Li G, Feng W, Corrigan N, Boyer C, Wang X, Xu J. Precise synthesis of poly(N-acryloyl amino acid) through photoinduced living polymerization. Polym Chem 2018. [DOI: 10.1039/c8py00366a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A library of N-acryloylamino acid polymers with controlled molecular weights and narrow molecular weight distributions (Mw/Mn < 1.20) was created by a universal and versatile photoinduced living radical polymerization technique.
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Affiliation(s)
- Guofeng Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Wenli Feng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Nathaniel Corrigan
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine
- School of Chemical Engineering
- University of New South Wales
- Sydney 2052
- Australia
| | - Cyrille Boyer
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine
- School of Chemical Engineering
- University of New South Wales
- Sydney 2052
- Australia
| | - Xing Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Jiangtao Xu
- Centre for Advanced Macromolecular Design and Australian Centre for NanoMedicine
- School of Chemical Engineering
- University of New South Wales
- Sydney 2052
- Australia
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18
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Swift T, Hoskins R, Telford R, Plenderleith R, Pownall D, Rimmer S. Analysis using size exclusion chromatography of poly(N-isopropyl acrylamide) using methanol as an eluent. J Chromatogr A 2017; 1508:16-23. [PMID: 28602503 PMCID: PMC5486375 DOI: 10.1016/j.chroma.2017.05.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/11/2017] [Accepted: 05/22/2017] [Indexed: 12/21/2022]
Abstract
Size Exclusion Chromatography is traditionally carried out in either aqueous or non-polar solvents. A system to present molar mass distributions of polymers using methanol as a mobile phase is presented. This is shown to be a suitable system for determining the molar mass distributions poly(N-isopropylacrylamide)s (PNIPAM); a polymer class that is often difficult to analyze by size exclusion chromatography. DOSY NMR was used to provide intrinsic viscosity data that was used in conjunction with a viscometric detector to provide absolute calibration. Then the utility of the system was shown by providing the absolute molar mass distributions of dispersed highly branched PNIPAM with biologically functional end groups.
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Affiliation(s)
- Thomas Swift
- School of Chemistry and Biosciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom.
| | - Richard Hoskins
- School of Chemistry and Biosciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom.
| | - Richard Telford
- School of Chemistry and Biosciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom.
| | - Richard Plenderleith
- Polymer and Biomaterials Laboratories, Department of Chemistry, University of Sheffield, Sheffield, S10 2TN, South Yorkshire, United Kingdom.
| | - David Pownall
- School of Chemistry and Biosciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom.
| | - Stephen Rimmer
- School of Chemistry and Biosciences, University of Bradford, Bradford, West Yorkshire, BD7 1DP, United Kingdom.
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19
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Chen S, Wang K, Zhang W. A new thermoresponsive polymer of poly(N-acryloylsarcosine methyl ester) with a tunable LCST. Polym Chem 2017. [DOI: 10.1039/c7py00274b] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A thermoresponsive polymer of the tertiary amide-based polyacrylamide, PNASME, was synthesized and its tunable thermoresponse was investigated.
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Affiliation(s)
- Shengli Chen
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Ke Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
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20
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Peng H, Rübsam K, Huang X, Jakob F, Karperien M, Schwaneberg U, Pich A. Reactive Copolymers Based on N-Vinyl Lactams with Pyridyl Disulfide Side Groups via RAFT Polymerization and Postmodification via Thiol–Disulfide Exchange Reaction. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01210] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Huan Peng
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Kristin Rübsam
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Xiaobin Huang
- Developmental
BioEngineering, MIRA Institute for Biomedical Technology and Technical
Medicine, University of Twente, Enschede, The Netherlands
| | - Felix Jakob
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
| | - Marcel Karperien
- Developmental
BioEngineering, MIRA Institute for Biomedical Technology and Technical
Medicine, University of Twente, Enschede, The Netherlands
| | | | - Andrij Pich
- DWI-Leibniz Institute
for Interactive Materials e.V., Aachen, Germany
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21
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Ott MW, Herbert H, Graf M, Biesalski M. Cellulose-graft-polystyrene bottle-brush copolymers by homogeneous RAFT polymerization of soluble cellulose macro-CTAs and “CTA-shuttled” R-group approach. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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23
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El-Newehy MH, Elsherbiny AS, Mori H. Influence of molecular weight on kinetics release of metronidazole from proline-based polymers prepared by RAFT polymerization. RSC Adv 2016. [DOI: 10.1039/c6ra14307e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In the current study, the influence of polymer molecular weight on the release of metronidazole (MTZ) as a drug model from synthesized proline-based polymers was studied.
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Affiliation(s)
| | | | - Hideharu Mori
- Department of Polymer Science and Engineering
- Graduate, School of Science and Engineering
- Yamagata University
- Yonezawa 992-8510
- Japan
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24
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Chen S, Zhang Y, Wang K, Zhou H, Zhang W. N-Ester-substituted polyacrylamides with a tunable lower critical solution temperature (LCST): the N-ester-substitute dependent thermoresponse. Polym Chem 2016. [DOI: 10.1039/c6py00515b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
New thermoresponsive polymers ofN-ester-substituted polyacrylamides were discovered, and theN-ester-substitute exerting a great influence on the solution property was demonstrated.
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Affiliation(s)
- Shengli Chen
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Yuan Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Ke Wang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Heng Zhou
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wangqing Zhang
- Key Laboratory of Functional Polymer Materials of the Ministry of Education
- Institute of Polymer Chemistry
- Nankai University
- Tianjin 300071
- China
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25
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Peng H, Xu W, Pich A. Temperature and pH dual-responsive poly(vinyl lactam) copolymers functionalized with amine side groups via RAFT polymerization. Polym Chem 2016. [DOI: 10.1039/c6py00885b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A series of statistical copolymers based on cyclic N-vinyl lactams and N-vinylformamide were synthesized via RAFT polymerization. Tempertaure/pH dual responsive polymers were obtained via hydrolysis the copolymers in alkaline conditions.
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Affiliation(s)
- Huan Peng
- Functional and Interactive Polymers
- Institute of Technical and Macromolecular Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Wenjing Xu
- Functional and Interactive Polymers
- Institute of Technical and Macromolecular Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
| | - Andrij Pich
- Functional and Interactive Polymers
- Institute of Technical and Macromolecular Chemistry
- RWTH Aachen University
- D-52074 Aachen
- Germany
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26
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Bauri K, Roy SG, De P. Side-Chain Amino-Acid-Derived Cationic Chiral Polymers by Controlled Radical Polymerization. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500271] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kamal Bauri
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata Mohanpur; 741246 Nadia West Bengal India
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27
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Hendrich M, Lewerdomski L, Vana P. Biomimetic triblock and multiblock copolymers containing l
-Phenylalanine moieties showing healing and enhanced mechanical properties. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/pola.27753] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael Hendrich
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
| | - Lars Lewerdomski
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
| | - Philipp Vana
- Institut für Physikalische Chemie, Georg-August-Universität Göttingen; Tammannstr 6 D-37077 Göttingen Germany
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28
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Peng H, Kather M, Rübsam K, Jakob F, Schwaneberg U, Pich A. Water-Soluble Reactive Copolymers Based on Cyclic N-Vinylamides with Succinimide Side Groups for Bioconjugation with Proteins. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00947] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Huan Peng
- Functional and Interactive Polymers, Institute of Technical and Macromolecular
Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
| | - Michael Kather
- Functional and Interactive Polymers, Institute of Technical and Macromolecular
Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
| | - Kristin Rübsam
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
| | - Felix Jakob
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
| | - Ulrich Schwaneberg
- Institute for Biotechnology, RWTH Aachen University, D-52056 Aachen, Germany
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
| | - Andrij Pich
- Functional and Interactive Polymers, Institute of Technical and Macromolecular
Chemistry, RWTH Aachen University, D-52056 Aachen, Germany
- DWI Leibniz Institute for Interactive Materials e.V., D-52056 Aachen, Germany
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29
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MORI H. Creation of Amino Acid-Based Polymeric Nano-Assemblies by RAFT Polymerization. KOBUNSHI RONBUNSHU 2015. [DOI: 10.1295/koron.2014-0091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hideharu MORI
- Department of Polymer Science and Engineering, Graduate School of Science and Engineering, Yamagata University
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30
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Ladmiral V, Charlot A, Semsarilar M, Armes SP. Synthesis and characterization of poly(amino acid methacrylate)-stabilized diblock copolymer nano-objects. Polym Chem 2015. [DOI: 10.1039/c4py01556h] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Two amino acid methacrylates prepared via Michael addition are used as building blocks to prepare novel diblock copolymer nano-objects via polymerisation-induced self-assembly.
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Affiliation(s)
- Vincent Ladmiral
- Institut Charles Gerhardt de Montpellier (UMR 5253
- CNRS-UM2-ENSCM-UM1) ENSCM
- 34296 Montpellier
- France
| | | | - Mona Semsarilar
- Institut Européen des Membranes (UMR 5635
- ENSCM-CNRS-UM2)
- Université Montpellier 2
- 34095 Montpellier Cedex 05
- France
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31
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Singh P, Srivastava A, Kumar R. Synthesis and characterization of nano micelles of poly(N-acrylamidohexanoic acid)-b-poly(N-vinylcaprolactam) via RAFT process: Solubilizing and releasing of hydrophobic molecules. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Roy SG, De P. pH responsive polymers with amino acids in the side chains and their potential applications. J Appl Polym Sci 2014. [DOI: 10.1002/app.41084] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
| | - Priyadarsi De
- Polymer Research Centre; Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur-741252 Nadia, West Bengal India
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33
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Roy SG, Haldar U, De P. Remarkable swelling capability of amino acid based cross-linked polymer networks in organic and aqueous medium. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4233-4241. [PMID: 24556036 DOI: 10.1021/am405932f] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This work reports design and synthesis of side chain amino acid based cross-linked polymeric gels, able to switch over from organogel to hydrogel by a simple deprotection reaction and showing superabsorbancy in water. Amino acid based methacrylate monomers, tert-butoxycarbonyl (Boc)-l/d-alanine methacryloyloxyethyl ester (Boc-l/d-Ala-HEMA), have been polymerized in the presence of a cross-linker via conventional free radical polymerization (FRP) and the reversible addition-fragmentation chain transfer (RAFT) technique for the synthesis of cross-linked polymer gels. The swelling behaviors of these organogels are investigated in organic solvents, and they behave as superabsorbent materials for organic solvents such as dichloromethane, acetone, tetrahydrofuran, etc. Swollen cross-linked polymer gels release the absorbed organic solvent rapidly. After Boc group deprotection from the pendant alanine moiety, the organogels transform to the hydrogels due to the formation of side chain ammonium (-NH3(+)) groups, and these hydrogels showed a significantly high swelling ratio (∼560 times than their dry volumes) in water. The morphology of organogels and hydrogels is studied by field emission scanning electron microscopy (FE-SEM). Amino acid based cross-linked gels could find applications as absorbents for oil spilled on water as well as superabsorbent hydrogels.
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Affiliation(s)
- Saswati Ghosh Roy
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata , PO: BCKV, Mohanpur, 741252, Nadia, West Bengal, India
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34
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Mori H, Takahashi E, Ishizuki A, Nakabayashi K. Tryptophan-Containing Block Copolymers Prepared by RAFT Polymerization: Synthesis, Self-Assembly, and Chiroptical and Sensing Properties. Macromolecules 2013. [DOI: 10.1021/ma400596r] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hideharu Mori
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Eri Takahashi
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Ai Ishizuki
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
| | - Kazuhiro Nakabayashi
- Department
of Polymer Science and Engineering and ‡Department of Organic Device Engineering, Graduate School of Science and Engineering, Yamagata University, 4-3-16, Jonan, Yonezawa 992-8510, Japan
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35
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Singh P, Srivastava A, Kumar R. Nanoporous well-defined reversible addition-fragmentation chain transfer polymer of N
-acrylamido-
l
-tryptophan: synthesis and characterization. POLYM INT 2013. [DOI: 10.1002/pi.4549] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pooja Singh
- Organic Polymer Laboratory, Department of Chemistry, Centre of Advance Studies in Chemistry, Faculty of Science; Banaras Hindu University; Varanasi 221005 UP India
| | - Ambika Srivastava
- Organic Polymer Laboratory, Department of Chemistry, Centre of Advance Studies in Chemistry, Faculty of Science; Banaras Hindu University; Varanasi 221005 UP India
| | - Rajesh Kumar
- Organic Polymer Laboratory, Department of Chemistry, Centre of Advance Studies in Chemistry, Faculty of Science; Banaras Hindu University; Varanasi 221005 UP India
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36
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Shi L, Xie P, Li Z, Wu Y, Deng J. Chiral pH-Responsive Amphiphilic Polymer Co-networks: Preparation, Chiral Recognition, and Release Abilities. MACROMOL CHEM PHYS 2013. [DOI: 10.1002/macp.201200729] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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37
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Bauri K, Roy SG, Pant S, De P. Controlled synthesis of amino acid-based pH-responsive chiral polymers and self-assembly of their block copolymers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2764-74. [PMID: 23346856 DOI: 10.1021/la304918s] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Leucine/isoleucine side chain polymers are of interest due to their hydrophobicity and reported role in the formation of α-helical structures. The synthesis and reversible addition-fragmentation chain transfer (RAFT) polymerization of amino acid-based chiral monomers, namely Boc-L-leucine methacryloyloxyethyl ester (Boc-L-Leu-HEMA, 1a), Boc-L-leucine acryloyloxyethyl ester (Boc-L-Leu-HEA, 1b), Boc-L-isoleucine methacryloyloxyethyl ester (Boc-L-Ile-HEMA, 1c), and Boc-L-isoleucine acryloyloxyethyl ester (Boc-L-Ile-HEA, 1d), are reported. The controlled nature of the polymerization of the said chiral monomers in N, N-dimethylformamide (DMF) at 70 °C is evident from the formation of narrow polydisperse polymers, the molecular weight controlled by the monomer/chain transfer agent (CTA) molar ratio and the linear relationship between molecular weight and monomer conversion. The resulting well-defined polymers were used as macro-CTAs to prepare corresponding diblock copolymers by RAFT polymerization of methyl (meth)acrylate monomers. Deprotection of Boc groups in the homopolymers and block copolymers under acidic conditions produced cationic, pH-responsive polymers with primary amine moieties at the side chains. The optical activity of the homopolymers and block copolymers were studied using circular dichroism (CD) spectroscopy and specific rotation measurements. The self-assembling nature of the block copolymers to produce highly ordered structures was illustrated through dynamic light scattering (DLS) and atomic force microscopy (AFM) studies. The side chain amine functionality instills pH-responsive behavior, which makes these cationic polymers attractive candidates for drug delivery applications, as well as for conjugation of biomolecules.
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Affiliation(s)
- Kamal Bauri
- Polymer Research Centre, Department of Chemical Sciences, Indian Institute of Science Education and Research-Kolkata, PO: BCKV Campus Main Office, Mohanpur-741252 Nadia, West Bengal, India
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38
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Kumar S, Acharya R, Chatterji U, De P. Controlled synthesis of pH responsive cationic polymers containing side-chain peptide moieties viaRAFT polymerization and their self-assembly. J Mater Chem B 2013; 1:946-957. [DOI: 10.1039/c2tb00170e] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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39
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Skaat H, Chen R, Grinberg I, Margel S. Engineered Polymer Nanoparticles Containing Hydrophobic Dipeptide for Inhibition of Amyloid-β Fibrillation. Biomacromolecules 2012; 13:2662-70. [DOI: 10.1021/bm3011177] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hadas Skaat
- Department of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat-Gan
52900, Israel
| | - Ravit Chen
- Department of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat-Gan
52900, Israel
| | - Igor Grinberg
- Department of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat-Gan
52900, Israel
| | - Shlomo Margel
- Department of Chemistry, Bar-Ilan Institute of Nanotechnology and Advanced Materials, Ramat-Gan
52900, Israel
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40
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El-Newehy MH, Elsherbiny AS, Mori H. Synthesis of amino acid-based polymers having metronidazole moiety and study of their controlled releasein vitro. J Appl Polym Sci 2012. [DOI: 10.1002/app.37611] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Moore BL, O'Reilly RK. Preparation of chiral amino acid materials and the study of their interactions with 1,1-Bi-2-naphthol. ACTA ACUST UNITED AC 2012. [DOI: 10.1002/pola.26141] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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42
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Mori H, Endo T. Amino-Acid-Based Block Copolymers by RAFT Polymerization. Macromol Rapid Commun 2012; 33:1090-107. [DOI: 10.1002/marc.201100887] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2011] [Revised: 02/19/2012] [Indexed: 12/21/2022]
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43
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Kumar S, Roy SG, De P. Cationic methacrylate polymers containing chiral amino acid moieties: controlled synthesis via RAFT polymerization. Polym Chem 2012. [DOI: 10.1039/c2py00607c] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Abstract
There is great current interest in the design of robust synthetic polymers for the preparation of novel functional, well-defined, biocompatible and tailorable materials for a range of possible applications. In this work we have used reversible addition fragmentation chain transfer (RAFT) polymerization to prepare chiral and responsive amphiphilic block copolymers (based on polyphenylalanine acrylamide), which can be assembled at different pHs to form well-defined nanostructures. The morphology and size of the derived block polymers were explored using TEM, DLS and SLS measurements, while stability was examined by fluorescence and NMR spectroscopy. The application of these chiral and responsive nanostructures in the resolution of hydrophilic racemic amino acids has also been explored.
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45
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Liu Z, Hu J, Sun J, He G, Li Y, Zhang G. Preparation of thermoresponsive polymers bearing amino acid diamide derivatives via RAFT polymerization. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24137] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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SYNTHESIS AND CHARACTERIZATION OF OPTICALLY ACTIVE BLOCK COPOLYMER WITH THERMO-RESPONSIVE CHARACTERISTIC VIA "CLICK" REACTION. ACTA POLYM SIN 2010. [DOI: 10.3724/sp.j.1105.2010.09237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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48
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Maki Y, Mori H, Endo T. Controlled Synthesis of Alternating Copolymers by RAFT Copolymerization of N
-Vinylphthalimide with N
-Isopropylacrylamide. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.200900544] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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49
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Garg D, Ahn JH, Chauhan GS. Proline-based polymeric monoliths: Synthesis, characterization, and applications as organocatalysts in aldol reaction. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.23845] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Skey J, Hansell CF, O’Reilly RK. Stabilization of Amino Acid Derived Diblock Copolymer Micelles through Favorable d:l side chain interactions. Macromolecules 2010. [DOI: 10.1021/ma902356u] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jared Skey
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, U.K
- The Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, U.K
| | - Claire F. Hansell
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, U.K
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