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Nishimura SN, Sato D, Koga T. Mechanically Tunable Hydrogels with Self-Healing and Shape Memory Capabilities from Thermo-Responsive Amino Acid-Derived Vinyl Polymers. Gels 2023; 9:829. [PMID: 37888402 PMCID: PMC10606565 DOI: 10.3390/gels9100829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/14/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
In this study, we report the fabrication and characterization of self-healing and shape-memorable hydrogels, the mechanical properties of which can be tuned via post-polymerization crosslinking. These hydrogels were constructed from a thermo-responsive poly(N-acryloyl glycinamide) (NAGAm) copolymer containing N-acryloyl serine methyl ester (NASMe) units (5 mol%) that were readily synthesized via conventional radical copolymerization. This transparent and free-standing hydrogel is produced via multiple hydrogen bonds between PNAGAm chains by simply dissolving the polymer in water at a high temperature (~90 °C) and then cooling it. This hydrogel exhibited moldability and self-healing properties. The post-polymerization crosslinking of the amino acid-derived vinyl copolymer network with glutaraldehyde, which acts as a crosslinker between the hydroxy groups of the NASMe units, tuned mechanical properties such as viscoelasticity and tensile strength. The optimal crosslinker concentration efficiently improved the viscoelasticity. Moreover, these hydrogels exhibited shape fixation (~60%)/memory (~100%) behavior owing to the reversible thermo-responsiveness (upper critical solution temperature-type) of the PNAGAm units. Our multifunctional hydrogel, with moldable, self-healing, mechanical tunability via post-polymerization crosslinking, and shape-memorable properties, has considerable potential for applications in engineering and biomedical materials.
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Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe 610-0321, Kyoto, Japan;
| | | | - Tomoyuki Koga
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe 610-0321, Kyoto, Japan;
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Nishimura SN, Nishida K, Ueda T, Shiomoto S, Tanaka M. Biocompatible poly( N-(ω-acryloyloxy- n-alkyl)-2-pyrrolidone)s with widely-tunable lower critical solution temperatures (LCSTs): a promising alternative to poly( N-isopropylacrylamide). Polym Chem 2022. [DOI: 10.1039/d2py00154c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The biocompatible (co)polymers undergoes a thermal stimulus-driven liquid–liquid phase separation and form coacervates above the lower critical solution temperature (LCST). The LCSTs are able to be precisely controlled between 0 °C and 100 °C.
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Affiliation(s)
- Shin-nosuke Nishimura
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kei Nishida
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tomoya Ueda
- Gladuate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Shohei Shiomoto
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Masaru Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- Gladuate School of Engineering, Kyushu University, 744, Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
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Murakami D, Nishimura SN, Tanaka Y, Tanaka M. Observing the repulsion layers on blood-compatible polymer-grafted interfaces by frequency modulation atomic force microscopy. Materials Science and Engineering: C 2021; 133:112596. [DOI: 10.1016/j.msec.2021.112596] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/12/2021] [Accepted: 12/03/2021] [Indexed: 10/19/2022]
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Affiliation(s)
- Rubaiya Anjum
- Department of Chemistry and Biochemistry, Graduate School of Engineering, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shin-nosuke Nishimura
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Shingo Kobayashi
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kei Nishida
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahisa Anada
- Department of Chemistry and Biochemistry, Graduate School of Engineering, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Masaru Tanaka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Nishimura S, Murakami Y. Facile preparation of porous polymeric sheets with different sizes of pores on both sides using spontaneous emulsification. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Nishimura S, Murakami Y. Precise Control of the Surface and Internal Morphologies of Porous Particles Prepared Using a Spontaneous Emulsification Method. Langmuir 2021; 37:3075-3085. [PMID: 33657324 DOI: 10.1021/acs.langmuir.0c03311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Porous particles with controllable surface and internal morphologies were successfully prepared by a "one-step mechanical emulsification" technique via the control of spontaneous emulsification where self-emulsification is followed by mechanical emulsification. The morphological changes in the porous particles were determined not by the preparation conditions of the water-in-oil-in-water (w/o/w) emulsion but by the proportion of solvents that favors the stabilization of the spontaneously prepared water-in-oil (w/o) emulsion droplets acting as porogens. The proposed method for controlling the morphology of the porous particles could be applied to all particle-preparation systems based on emulsion-solvent evaporation using organic solvents. The methodology for the morphological control of porous particles independent of the concentration or composition of the polymer is considered valuable for future investigations into the aerodynamic performance and drug-release behavior of biomedical porous particles with complex shapes.
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Affiliation(s)
- Shinnosuke Nishimura
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
| | - Yoshihiko Murakami
- Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Naka-cho, Koganei, Tokyo 184-8588, Japan
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Higashi N, Narimatsu K, Okumura M, Nishimura SN, Koga T. Spontaneous Formation of Nanoparticles from Peptide-Vinyl Polymer Diblock Hybrids Prepared by RAFT Polymerization and Their Interactions with Cells. ACS Omega 2019; 4:8104-8111. [PMID: 31459901 PMCID: PMC6648836 DOI: 10.1021/acsomega.9b00899] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 04/24/2019] [Indexed: 06/10/2023]
Abstract
Novel polymeric nanoparticles (NPs) with uniform sizes were prepared from peptide-vinyl polymer diblock hybrids by the self-organized precipitation method. Hybrid polymers of polystyrene (PSt) and tetrapeptide (cell-binding epitope RGDS, reverse SDGR, cationic KKKK, and anionic DDDD) were successfully synthesized by combining solid-phase peptide synthesis and reversible addition fragmentation chain transfer polymerization methods. Narrowly dispersed hybrid polymers (polydispersity index < 1.25, M n 14 000-17 000) were obtained. Altering the preparation conditions easily tuned the size and size distribution of the NPs. When the ζ-potentials for the NP suspensions were measured at pH 6.0, the obtained values corresponded to the net charge of each peptide segment. More importantly, the NPs could encapsulate fluorescent Nile red (NR) and magnetic iron oxide NP (MNP), which might be suitable for fluorescent imaging and magnet-induced patterning of cells, respectively. The interactions of NPs with cells (NIH/3T3 fibroblast) and the magnetic effects were examined for NR/MNP-loaded PSt-RGDS and -SDGR NPs. Both NPs were readily incorporated into cells, but only NR/MNP-loaded PSt-RGDS NP showed magnetic responsiveness in cell adhesion and cultures.
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Nishimura SN, Higashi N, Koga T. A novel thermo-responsive multiblock architecture composed of a sequential peptide and an amino acid-derived vinyl polymer: toward protein-mimicking single-chain folding. Chem Commun (Camb) 2019; 55:1498-1501. [DOI: 10.1039/c8cc09051c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel multiblock hybrid copolymer composed of a β-sheet peptide and a glycine-derived vinyl polymer was developed to achieve single-chain folding into well-defined nanoparticles.
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Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyotanabe
- Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyotanabe
- Japan
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Nishimura SN, Higashi N, Koga T. Synthesis of peptide–vinyl polymer multiblock hybrids by nitroxide-mediated polymerization: breaking the limitations of monomer compatibility. Polym Chem 2019. [DOI: 10.1039/c8py01330f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nitroxide-mediated polymerization of a wide variety of vinyl monomers using a novel TIPNO-based cyclic peptide successfully provided multiblock architectures composed of sequential peptides and vinyl polymers in one step.
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Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyoto
- Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyoto
- Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry & Biochemistry
- Faculty of Science & Engineering
- Doshisha University
- Kyoto
- Japan
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Nishimura SN, Hirata A, Taki Y, Morita Y, Higashi N, Koga T. Photocleavable and Polymerizable Peptide for Micropatterning of Bioactive Segments in Polymer Soft Materials. CHEM LETT 2018. [DOI: 10.1246/cl.171235] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Ayaha Hirata
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Yukiko Taki
- Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Yusuke Morita
- Department of Biomedical Engineering, Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry and Biochemistry, Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
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Nishimura S, Takami T, Murakami Y. Porous PLGA microparticles formed by “one-step” emulsification for pulmonary drug delivery: The surface morphology and the aerodynamic properties. Colloids Surf B Biointerfaces 2017; 159:318-326. [DOI: 10.1016/j.colsurfb.2017.08.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/22/2017] [Accepted: 08/02/2017] [Indexed: 12/23/2022]
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Nishimura SN, Higashi N, Koga T. Frontispiece: Facile Synthesis of Multiblock Copolymers Containing Sequence-Controlled Peptides and Well-Defined Vinyl Polymers by Nitroxide-Mediated Polymerization. Chemistry 2017. [DOI: 10.1002/chem.201786064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
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Nishimura SN, Higashi N, Koga T. Facile Synthesis of Multiblock Copolymers Containing Sequence-Controlled Peptides and Well-Defined Vinyl Polymers by Nitroxide-Mediated Polymerization. Chemistry 2017; 23:15050-15058. [DOI: 10.1002/chem.201703655] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Shin-nosuke Nishimura
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
| | - Nobuyuki Higashi
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
| | - Tomoyuki Koga
- Department of Molecular Chemistry & Biochemistry; Faculty of Science & Engineering; Doshisha University; Kyotanabe, Kyoto 610-0321 Japan
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