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Jikei M, Takeda M, Kaneda Y, Kudo K, Tanaka N, Matsumoto K, Hikida M, Ueki S. Synthesis and Antiplatelet Adhesion Behavior of a Poly(L-lactide- co-glycolide)-Poly(1,5-dioxepan-2-one) Multiblock Copolymer. ACS OMEGA 2021; 6:27968-27975. [PMID: 34722996 PMCID: PMC8552321 DOI: 10.1021/acsomega.1c03846] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/30/2021] [Indexed: 05/04/2023]
Abstract
Platelet adhesion and denaturation on artificial medical implants induce thrombus formation. In this study, bioabsorbable copolymers composed of poly(l-lactide-co-glycolide) (PLGA) and poly(1,5-dioxepan-2-one) (PDXO) were synthesized and evaluated for their antiplatelet adhesive properties. The PLGA-PXO multiblock copolymer (PLGA-PDXO MBC) and its random copolymer (PLGA-PDXO RC) showed effective antiplatelet adhesive properties, and the number of adhered platelets was similar to those adhered on poly(2-methoxyethylacrylate), a known antiplatelet adhesive polymer, although a large number of denatured platelets were observed on a PLGA-poly(ε-caprolactone) multiblock copolymer (PLGA-PCL MBC). Using monoclonal antifibrinogen IgG antibodies, we also found that both αC and γ-chains, the binding sites of fibrinogen for platelets, were less exposed on the PLGA-PDXO MBC surface compared to PLGA-PCL MBC. Furthermore, free-standing films of PLGA-PDXO MBC were prepared by casting the polymer solution on glass plates and showed good tensile properties and slow hydrolytic degradation in phosphate-buffered saline (pH = 7.4). We expect that the unique properties of PLGA-PDXO MBC, i.e., antiplatelet adhesive behavior, good tensile strength, and hydrolytic degradation, will pave the way for the development of new bioabsorbable implanting materials suitable for application at blood-contacting sites.
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Affiliation(s)
- Mitsutoshi Jikei
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Mao Takeda
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Yoshiki Kaneda
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Kohei Kudo
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Nozomi Tanaka
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Kazuya Matsumoto
- Department
of Materials Engineering, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Masaki Hikida
- Department
of Life Science, Graduate School of Engineering Science, Akita University, 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502, Japan
| | - Shigeharu Ueki
- Department
of General Internal Medicine and Clinical Laboratory Medicine, Graduate
School of Medicine, Akita University, 1-1-1, Hondo, Akita-shi, Akita 010-8543, Japan
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Patil S, Yoo J, Won YY. Investigation of the Mechanisms and Kinetics of DBU-Catalyzed PLGA Copolymerization via a Full-Scale Population Balance Analysis. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c03096] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Samruddhi Patil
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jin Yoo
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - You-Yeon Won
- Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
- Purdue University Center for Cancer Research, West Lafayette, Indiana 47906, United States
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Izraylit V, Gould OEC, Rudolph T, Kratz K, Lendlein A. Controlling Actuation Performance in Physically Cross-Linked Polylactone Blends Using Polylactide Stereocomplexation. Biomacromolecules 2019; 21:338-348. [PMID: 31746189 DOI: 10.1021/acs.biomac.9b01279] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Within the field of shape-changing materials, synthetic chemical modification has been widely used to introduce key structural units and subsequently expand the mechanical functionality of actuator devices. The introduction of architectural elements that facilitate in situ control over mechanical properties and complete geometric reconfiguration of a device is highly desirable to increase the morphological diversity of polymeric actuator materials. The subject of the present study is a multiblock copolymer with semicrystalline poly(l-lactide) and poly(ε-caprolactone) (PLLA-PCL) segments. By harnessing the stereocomplexation of copolymer chains with a poly(d-lactide) oligomer (PDLA), we provide anchoring points for physical network formation and demonstrate how a blending process can be used to efficiently vary the mechanical properties of a shape-memory actuator. We investigate the effect of molecular structure on the actuation performance of the material in cyclic thermomechanical tests, with a maximum reversible shape change εrev' = 13.4 ± 1.5% measured at 3.1 wt % of polylactide stereocomplex content in the multiblock copolymer matrix. The thermophysical properties, crystalline structure, and phase morphology were analyzed by DSC, WAXS and AFM respectively, elucidating the structure-to-function relationship in physically cross-linked blended materials. The work demonstrates a one-step technique for manufacturing a polymeric actuator and tuning its performance in situ. This approach should greatly improve the efficiency of physically cross-linked actuator fabrication, allowing composition and physical behavior to be precisely and easily controlled.
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Affiliation(s)
- Victor Izraylit
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies , Helmholtz-Zentrum Geesthacht , Kantstrasse , 14513 Teltow , Germany.,Institute of Chemistry , University of Potsdam , Karl-Liebknecht-Strasse 24/25 , 14476 Potsdam , Germany
| | - Oliver E C Gould
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies , Helmholtz-Zentrum Geesthacht , Kantstrasse , 14513 Teltow , Germany
| | - Tobias Rudolph
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies , Helmholtz-Zentrum Geesthacht , Kantstrasse , 14513 Teltow , Germany
| | - Karl Kratz
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies , Helmholtz-Zentrum Geesthacht , Kantstrasse , 14513 Teltow , Germany
| | - Andreas Lendlein
- Institute of Biomaterial Science and Berlin-Brandenburg Centre for Regenerative Therapies , Helmholtz-Zentrum Geesthacht , Kantstrasse , 14513 Teltow , Germany.,Institute of Chemistry , University of Potsdam , Karl-Liebknecht-Strasse 24/25 , 14476 Potsdam , Germany.,Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustrasse 3 , 14195 Berlin , Germany
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Jikei M, Kobayashi Y, Matsumoto K, Hirokawa M, Ueki S. Antiplatelet adhesion behavior of hyperbranched poly(l-lactide)s containing glutamic acid terminal groups. J Appl Polym Sci 2018. [DOI: 10.1002/app.46910] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mitsutoshi Jikei
- Department of Materials Engineering; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502 Japan
| | - Yuuki Kobayashi
- Department of Materials Engineering; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502 Japan
| | - Kazuya Matsumoto
- Department of Materials Engineering; Graduate School of Engineering Science, Akita University; 1-1, Tegatagakuen-machi, Akita-shi, Akita 010-8502 Japan
| | - Makoto Hirokawa
- Department of General Internal Medicine and Clinical Laboratory Medicine; Graduate School of Medicine, Akita University; 1-1-1, Hondo, Akita-shi, Akita 010-8543 Japan
| | - Shigeharu Ueki
- Department of General Internal Medicine and Clinical Laboratory Medicine; Graduate School of Medicine, Akita University; 1-1-1, Hondo, Akita-shi, Akita 010-8543 Japan
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Ye H, Zhang K, Kai D, Li Z, Loh XJ. Polyester elastomers for soft tissue engineering. Chem Soc Rev 2018; 47:4545-4580. [PMID: 29722412 DOI: 10.1039/c8cs00161h] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polyester elastomers are soft, biodegradable and biocompatible and are commonly used in various biomedical applications, especially in tissue engineering. These synthetic polyesters can be easily fabricated using various techniques such as solvent casting, particle leaching, molding, electrospinning, 3-dimensional printing, photolithography, microablation etc. A large proportion of tissue engineering research efforts have focused on the use of allografts, decellularized animal scaffolds or other biological materials as scaffolds, but they face the major concern of triggering immunological responses from the host, on top of other issues. This review paper will introduce the recent developments in elastomeric polyesters, their synthesis and fabrication techniques, as well as their application in the biomedical field, focusing primarily on tissue engineering in ophthalmology, cardiac and vascular systems. Some of the commercial and near-commercial polyesters used in these tissue engineering fields will also be described.
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Affiliation(s)
- Hongye Ye
- Institute of Materials Research and Engineering (IMRE), 2 Fusionopolis Way, #08-03 Innovis, Singapore 138634, Singapore.
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