1
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Synthesis of Superhydrophilic Gradient-Like Copolymers: Kinetics of the RAFT Copolymerization of Methacryloyloxyethyl Phosphorylcholine with PEO Methacrylate. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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2
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Moriwaki S, Yoshizaki Y, Konno T. Phospholipid polymer hydrogels with rapid dissociation for reversible cell immobilization. J Mater Chem B 2022; 10:2628-2636. [PMID: 35015009 DOI: 10.1039/d1tb02316k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A reversible and cytocompatible cell immobilization polymer matrix with a rapid dissociation rate was prepared using a zwitterionic phospholipid polymer bearing phenylboronic acid and poly(vinyl alcohol) (PVA). A reversible and spontaneously forming phospholipid polymer hydrogel is reported for use as a cell immobilization matrix which caused no invasive damage to the cells. To improve the possibility of applying the hydrogels as a reversible cell immobilization matrix, the stimuli-responsive dissociation rate of polymer hydrogels was designed to have a more rapid rate to ease the recovery of the immobilized cells. In this study, a phospholipid polymer containing 3-methacrylamide phenylboronic acid (MAPBA) as the phenylboronic acid unit was synthesized. The water-soluble phospholipid polymer (PMB-MAPBA) can spontaneously form polymer hydrogels after mixing with PVA solution under normal pressure, room temperature, and neutral pH conditions. Also, the dissociation of the hydrogels after the addition of D-sorbitol completely occurred within 10 minutes. The cells were easily immobilized on the hydrogels during the preparation process. Also, the recovery ratio of the immobilized cells was improved due to the rapid dissociation of the hydrogels. The reversible and spontaneously formed phospholipid polymer hydrogels are promising for use as soft materials for platforms for cell engineering.
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Affiliation(s)
- Sachi Moriwaki
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Yuta Yoshizaki
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
| | - Tomohiro Konno
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan.
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3
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Rahimnejad M, Rabiee N, Ahmadi S, Jahangiri S, Sajadi SM, Akhavan O, Saeb MR, Kwon W, Kim M, Hahn SK. Emerging Phospholipid Nanobiomaterials for Biomedical Applications to Lab-on-a-Chip, Drug Delivery, and Cellular Engineering. ACS APPLIED BIO MATERIALS 2021; 4:8110-8128. [PMID: 35005915 DOI: 10.1021/acsabm.1c00932] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The design of advanced nanobiomaterials to improve analytical accuracy and therapeutic efficacy has become an important prerequisite for the development of innovative nanomedicines. Recently, phospholipid nanobiomaterials including 2-methacryloyloxyethyl phosphorylcholine (MPC) have attracted great attention with remarkable characteristics such as resistance to nonspecific protein adsorption and cell adhesion for various biomedical applications. Despite many recent reports, there is a lack of comprehensive review on the phospholipid nanobiomaterials from synthesis to diagnostic and therapeutic applications. Here, we review the synthesis and characterization of phospholipid nanobiomaterials focusing on MPC polymers and highlight their attractive potentials for applications in micro/nanofabricated fluidic devices, biosensors, lab-on-a-chip, drug delivery systems (DDSs), COVID-19 potential usages for early diagnosis and even treatment, and artificial extracellular matrix scaffolds for cellular engineering.
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Affiliation(s)
- Maedeh Rahimnejad
- Biomedical Engineering Institute, School of Medicine, Université de Montréal, Montreal, Quebec H2X 0A9, Canada.,Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran , Iran
| | - Navid Rabiee
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran , Iran
| | - Sepideh Ahmadi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran.,Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran 19857-17443, Iran
| | - Sepideh Jahangiri
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran , Iran.,Department of Biomedical Sciences, Faculty of Medicine, Université de Montréal, Montreal, Quebec H2X 0A9, Canada
| | - S Mohammad Sajadi
- Department of Nutrition, Cihan University-Erbil, Erbil 44001, Kurdistan Region, Iraq.,Department of Phytochemistry, SRC, Soran University, Soran City 44008, Kurdistan Region, Iraq
| | - Omid Akhavan
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran , Iran
| | - Mohammad Reza Saeb
- Department of Polymer Technology, Faculty of Chemistry, Gdańsk University of Technology, G. Narutowicza 11/12 80-233, Gdańsk 80-233, Poland
| | - Woosung Kwon
- Department of Chemical and Biological Engineering, Sookmyung Women's University, 100 Cheongpa-ro 47-gil, Yongsan-gu, Seoul 04310, Korea
| | - Mungu Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Korea
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, Korea
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4
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Lv D, Li P, Zhou L, Wang R, Chen H, Li X, Zhao Y, Wang J, Huang N. Synthesis, evaluation of phospholipid biomimetic polycarbonate for potential cardiovascular stents coating. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104897] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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5
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Ham J, Kim Y, An T, Kang S, Ha C, Wufue M, Kim Y, Jeon B, Kim S, Kim J, Choi TH, Seo JH, Kim DW, Park JU, Lee Y. Covalently Grafted 2-Methacryloyloxyethyl Phosphorylcholine Networks Inhibit Fibrous Capsule Formation around Silicone Breast Implants in a Porcine Model. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30198-30212. [PMID: 32574031 DOI: 10.1021/acsami.0c07629] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The surface of human silicone breast implants is covalently grafted at a high density with a 2-methacryloyloxyethyl phosphorylcholine (MPC)-based polymer. Addition of cross-linkers is essential for enhancing the density and mechanical durability of the MPC graft. The MPC graft strongly inhibits not only adsorption but also the conformational deformation of fibrinogen, resulting in the exposure of a buried amino acid sequence, γ377-395, which is recognized by inflammatory cells. Furthermore, the numbers of adhered macrophages and the amounts of released cytokines (MIP-1α, MIP-1β, IL-8, TNFα, IL-1α, IL-1β, and IL-10) are dramatically decreased when the MPC network is introduced at a high density on the silicone surface (cross-linked PMPC-silicone). We insert the MPC-grafted human silicone breast implants into Yorkshire pigs to analyze the in vivo effect of the MPC graft on the capsular formation around the implants. After 6 month implantation, marked reductions of inflammatory cell recruitment, inflammatory-related proteins (TGF-β and myeloperoxidase), a myoblast marker (α-smooth muscle actin), vascularity-related factors (blood vessels and VEGF), and, most importantly, capsular thickness are observed on the cross-linked PMPC-silicone. We propose a mechanism of the MPC grafting effect on fibrous capsular formation around silicone implants on the basis of the in vitro and in vivo results.
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Affiliation(s)
- Jiyeon Ham
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Youngmin Kim
- Interdisciplinary Program in Stem Cell Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Taeyang An
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sunah Kang
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Cheolmin Ha
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Maierdanjiang Wufue
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Yumin Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Byoungjun Jeon
- Interdisciplinary Program in Bioengineering, College of Engineering, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Seulah Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Jungah Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Tae Hyun Choi
- Department of Plastic and Reconstructive Surgery, Institute of Human-Environment Interface Biology, College of Medicine, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Ji-Hun Seo
- Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dae Woo Kim
- Department of Otolaryngology-Head and Neck Surgery, Seoul National University Boramae Medical Center, 5 Gil 20, Boramae-ro, Dongjak-gu, Seoul 07061, Republic of Korea
| | - Ji-Ung Park
- Department of Plastic and Reconstructive Surgery, Seoul National University Boramae Hospital, 5 Gil 20, Boramae-ro, Dongjak-gu, Seoul 07061, Republic of Korea
| | - Yan Lee
- Department of Chemistry, College of Natural Sciences, Seoul National University, Gwanak-ro 1, Gwanak-gu, Seoul 08826, Republic of Korea
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Ishihara K. Revolutionary advances in 2‐methacryloyloxyethyl phosphorylcholine polymers as biomaterials. J Biomed Mater Res A 2019; 107:933-943. [DOI: 10.1002/jbm.a.36635] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 01/24/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Kazuhiko Ishihara
- Department of Materials Engineering The University of Tokyo 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 Japan
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7
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2-methoxyethylacrylate modified polyurethane membrane and its blood compatibility. PROGRESS IN BIOPHYSICS AND MOLECULAR BIOLOGY 2017; 148:39-46. [PMID: 29079209 DOI: 10.1016/j.pbiomolbio.2017.10.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 10/13/2017] [Accepted: 10/23/2017] [Indexed: 01/13/2023]
Abstract
Hydrophilic material 2-methoxyethylacrylate (MEA) was grafted onto polyurethane (PU) membrane via Michael addition reaction. Fourier transform infrared spectroscope (FTIR) and X-ray photoelectron spectroscopy (XPS) characterizations of the modified membrane proved that MEA was successfully grafted onto PU membrane surface. The water contact angle of the modified PU membrane decreased from 86° to 48° compared with unmodified PU membrane, which means that the hydrophilicity of the modified membrane was greatly improved. A series of blood compatibility tests including bovine serum protein adsorption, platelet adhesion, hemolysis assay, plasma recalacification time, prothrombin time (PT), partial thromboplastin time (APTT) and thrombin time (TT) were carried out on PU membrane and the modified PU membrane with highest grafted density of MEA. The combined results indicate that MEA plays an important role in improving the blood compatibility of PU membrane.
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HIGUCHI K, SASAKI K, IWANO A, MORITA K, SHINYASHIKI N, OKAMURA Y, NAGASE Y. Mechanical Properties and Dielectric Relaxation Behavior of Segmented Polyurethanes Containing Phosphorylcholine Groups. KOBUNSHI RONBUNSHU 2017. [DOI: 10.1295/koron.2017-0021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Koji HIGUCHI
- Graduate School of Engineering, Tokai University
| | - Kaito SASAKI
- Graduate School of Science and Technology, Tokai University
- Micro·Nano Research & Development Center, Tokai University
| | | | - Kohei MORITA
- Graduate School of Engineering, Tokai University
| | - Naoki SHINYASHIKI
- Graduate School of Science and Technology, Tokai University
- Graduate School of Science, Tokai University
| | - Yosuke OKAMURA
- Graduate School of Engineering, Tokai University
- Micro·Nano Research & Development Center, Tokai University
| | - Yu NAGASE
- Graduate School of Engineering, Tokai University
- Graduate School of Science and Technology, Tokai University
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9
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Wang N, Jin X, Zhu X. Construction of biomimetic long-circulation delivery platform encapsulated by zwitterionic polymers for enhanced penetration of blood–brain barrier. RSC Adv 2017. [DOI: 10.1039/c7ra01532a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A core–shell protein-based long circulation delivery platform has been constructed for enhanced penetration of the blood–brain barrier.
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Affiliation(s)
- Nan Wang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Xin Jin
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240
- P. R. China
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10
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ASAO K, OGINO M, IWANO A, OKAMURA Y, TAKEOKA S, NAGASE Y. Synthesis of Phosphorylcholine-Containing Polyimides and the Fabrication of Biocompatible Nanosheets Thereof. KOBUNSHI RONBUNSHU 2016. [DOI: 10.1295/koron.2015-0062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kohei ASAO
- Course of Industrial Chemistry, Graduate School of Engineering, Tokai University
| | - Mari OGINO
- Course of Industrial Chemistry, Graduate School of Engineering, Tokai University
| | - Atsushi IWANO
- Course of Industrial Chemistry, Graduate School of Engineering, Tokai University
| | - Yosuke OKAMURA
- Course of Industrial Chemistry, Graduate School of Engineering, Tokai University
| | - Shinji TAKEOKA
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University
| | - Yu NAGASE
- Course of Industrial Chemistry, Graduate School of Engineering, Tokai University
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11
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Choi J, Konno T, Ishihara K. Multilayered phospholipid polymer hydrogels for releasing cell growth factors. ACTA ACUST UNITED AC 2014. [DOI: 10.12989/bme.2014.1.1.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Ehashi T, Takemura T, Hanagata N, Minowa T, Kobayashi H, Ishihara K, Yamaoka T. Comprehensive genetic analysis of early host body reactions to the bioactive and bio-inert porous scaffolds. PLoS One 2014; 9:e85132. [PMID: 24454803 PMCID: PMC3891765 DOI: 10.1371/journal.pone.0085132] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2013] [Accepted: 11/22/2013] [Indexed: 02/06/2023] Open
Abstract
To design scaffolds for tissue regeneration, details of the host body reaction to the scaffolds must be studied. Host body reactions have been investigated mainly by immunohistological observations for a long time. Despite of recent dramatic development in genetic analysis technologies, genetically comprehensive changes in host body reactions are hardly studied. There is no information about host body reactions that can predict successful tissue regeneration in the future. In the present study, porous polyethylene scaffolds were coated with bioactive collagen or bio-inert poly(2-methacryloyloxyethyl phosphorylcholine-co-n-butyl methacrylate) (PMB) and were implanted subcutaneously and compared the host body reaction to those substrates by normalizing the result using control non-coat polyethylene scaffold. The comprehensive analyses of early host body reactions to the scaffolds were carried out using a DNA microarray assay. Within numerous genes which were expressed differently among these scaffolds, particular genes related to inflammation, wound healing, and angiogenesis were focused upon. Interleukin (IL)-1β and IL-10 are important cytokines in tissue responses to biomaterials because IL-1β promotes both inflammation and wound healing and IL-10 suppresses both of them. IL-1β was up-regulated in the collagen-coated scaffold. Collagen-specifically up-regulated genes contained both M1- and M2-macrophage-related genes. Marked vessel formation in the collagen-coated scaffold was occurred in accordance with the up-regulation of many angiogenesis-inducible factors. The DNA microarray assay provided global information regarding the host body reaction. Interestingly, several up-regulated genes were detected even on the very bio-inert PMB-coated surfaces and those genes include inflammation-suppressive and wound healing-suppressive IL-10, suggesting that not only active tissue response but also the inert response may relates to these genetic regulations.
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Affiliation(s)
- Tomo Ehashi
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Core Research Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Tokyo, Japan
| | - Taro Takemura
- Nanotechnology Innovation Station, National Institute for Materials Science, Ibaraki, Japan
| | - Nobutaka Hanagata
- Nanotechnology Innovation Station, National Institute for Materials Science, Ibaraki, Japan
| | - Takashi Minowa
- Nanotechnology Innovation Station, National Institute for Materials Science, Ibaraki, Japan
| | - Hisatoshi Kobayashi
- Biomaterials Center, National Institute for Materials Science, Ibaraki, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, The University of Tokyo, Tokyo, Japan
| | - Tetsuji Yamaoka
- Department of Biomedical Engineering, National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
- Core Research Evolutional Science and Technology (CREST), Japan Science and Technology Agency, Tokyo, Japan
- * E-mail:
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13
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Liu Y, Inoue Y, Sakata S, Kakinoki S, Yamaoka T, Ishihara K. Effects of molecular architecture of phospholipid polymers on surface modification of segmented polyurethanes. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:474-86. [DOI: 10.1080/09205063.2013.873282] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Kobayashi M, Matsugi T, Saito J, Imuta JI, Kashiwa N, Takahara A. Direct modification of polyolefin films by surface-initiated polymerization of a phosphobetaine monomer. Polym Chem 2013. [DOI: 10.1039/c2py20712e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Choi J, Konno T, Takai M, Ishihara K. Regulation of cell proliferation by multi-layered phospholipid polymer hydrogel coatings through controlled release of paclitaxel. Biomaterials 2012; 33:954-61. [DOI: 10.1016/j.biomaterials.2011.10.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 10/01/2011] [Indexed: 11/24/2022]
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16
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Kim HI, Ishihara K, Lee S, Seo JH, Kim HY, Suh D, Kim MU, Konno T, Takai M, Seo JS. Tissue response to poly(l-lactic acid)-based blend with phospholipid polymer for biodegradable cardiovascular stents. Biomaterials 2011; 32:2241-7. [DOI: 10.1016/j.biomaterials.2010.11.067] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 11/27/2010] [Indexed: 02/06/2023]
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17
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Feng Y, Zhao H, Zhang L, Guo J. Surface modification of biomaterials by photochemical immobilization and photograft polymerization to improve hemocompatibility. ACTA ACUST UNITED AC 2010. [DOI: 10.1007/s11705-010-0005-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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18
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Xu Y, Takai M, Ishihara K. Phospholipid Polymer Biointerfaces for Lab-on-a-Chip Devices. Ann Biomed Eng 2010; 38:1938-53. [DOI: 10.1007/s10439-010-0025-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Accepted: 03/22/2010] [Indexed: 01/09/2023]
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Liu G, Iwata K, Ogasawara T, Watanabe J, Fukazawa K, Ishihara K, Asawa Y, Fujihara Y, Chung UL, Moro T, Takatori Y, Takato T, Nakamura K, Kawaguchi H, Hoshi K. Selection of highly osteogenic and chondrogenic cells from bone marrow stromal cells in biocompatible polymer-coated plates. J Biomed Mater Res A 2010; 92:1273-82. [PMID: 19330850 DOI: 10.1002/jbm.a.32460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
To enrich the subpopulation that preserves self-renewal and multipotentiality from conventionally prepared bone marrow stromal cells (MSCs), we attempted to use 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer-coated plates that selected the MSCs with strong adhesion ability and evaluated the proliferation ability or osteogenic/chondrogenic potential of the MPC polymer-selected MSCs. The number of MSCs that were attached to the MPC polymer-coated plates decreased with an increase in the density of MPC unit (0-10%), whereas no significant difference in the proliferation ability was seen among these cells. The surface epitopes of CD29, CD44, CD105, and CD166, and not CD34 or CD45, were detectable in the cells of all MPC polymer-coated plates, implying that they belong to the MSC category. In the osteogenic and chondrogenic induction, the MSCs selected by the 2-5% MPC unit composition showed higher expression levels of osteoblastic and chondrocytic markers (COL1A1/ALP, or COL2A1/COL10A1/Sox9) at passage 2, compared with those of 0-1% or even 10% MPC unit composition, while the enhanced effects continued by passage 5. The selection based on the adequate cell adhesiveness by the MPC polymer-coated plates could improve the osteogenic and chondrogenic potential of MSCs, which would provide cell sources that can be used to treat the more severe and various bone/cartilage diseases.
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Affiliation(s)
- G Liu
- Department of Cartilage and Bone Regeneration (Fujisoft), Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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Kitano K, Inoue Y, Matsuno R, Takai M, Ishihara K. Nanoscale evaluation of lubricity on well-defined polymer brush surfaces using QCM-D and AFM. Colloids Surf B Biointerfaces 2009; 74:350-7. [DOI: 10.1016/j.colsurfb.2009.08.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Accepted: 08/06/2009] [Indexed: 11/17/2022]
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21
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Choi J, Konno T, Takai M, Ishihara K. Controlled drug release from multilayered phospholipid polymer hydrogel on titanium alloy surface. Biomaterials 2009; 30:5201-8. [PMID: 19560818 DOI: 10.1016/j.biomaterials.2009.06.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Accepted: 06/02/2009] [Indexed: 10/20/2022]
Abstract
Here we describe the functionalization of a multilayered hydrogel layer on a Ti alloy with an antineoplastic agent, paclitaxel (PTX). The multilayered hydrogel was synthesized via layer-by-layer self-assembly (LbL) using selective intermolecular reactions between two water-soluble polymers, phospholipid polymer (PMBV) containing a phenylboronic acid unit and poly(vinyl alcohol) (PVA). Reversible covalent bonding between phenylboronic acid and the polyol provided the driving force for self-assembly. Poorly water-soluble PTX dissolves in PMBV aqueous solutions because PMBV is amphiphilic. Therefore, our multilayered hydrogel could be loaded with PTX at different locations to control the release profile and act as a drug reservoir. The amount of PTX incorporated in the hydrogel samples increased with the number of layers but was not directly proportional to the number of layers. However, as the step for making layers was repeated, the concentration of PTX in the PMBV layers increased. The different solubilities of PTX in PMBV and PVA aqueous solutions allow for the production of multilayered hydrogels loaded with PTX at different locations. In vitro experiments demonstrated that the location of PTX in the multilayered hydrogel influences the start and profile of PTX release. We expect that this rapid and facile LbL synthesis of multilayered hydrogels and technique for in situ loading with PTX, where the location of loading controls the release pattern, will find applications in biomedicine and pharmaceutics as a promising new technique.
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Affiliation(s)
- Jiyeon Choi
- Department of Materials Engineering, School of Engineering, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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22
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Moro T, Kawaguchi H, Ishihara K, Kyomoto M, Karita T, Ito H, Nakamura K, Takatori Y. Wear resistance of artificial hip joints with poly(2-methacryloyloxyethyl phosphorylcholine) grafted polyethylene: comparisons with the effect of polyethylene cross-linking and ceramic femoral heads. Biomaterials 2009; 30:2995-3001. [PMID: 19269686 DOI: 10.1016/j.biomaterials.2009.02.020] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2008] [Accepted: 02/08/2009] [Indexed: 10/21/2022]
Abstract
Aseptic loosening of artificial hip joints induced by wear particles from the polyethylene (PE) liner remains the ruinous problem limiting their longevity. We reported here that grafting with a polymer, poly(2-methacryloyloxyethyl phosphorylcholine (MPC)) (PMPC), on the PE liner surface dramatically decreased the wear production under a hip joint simulator condition. We examined that the effect of properties of both PE by cross-linking and femoral head by changing the materials on wearing properties of PE. The PMPC grafting on the liners increased hydrophilicity and decreased friction torque, regardless of the cross-linking of the PE liner or the difference in the femoral head materials. During the hip joint simulator experiments (5 x 10(6) cycles of loading), cross-linking caused a decrease of wear amount and a reduction of the particle size, while the femoral head materials did not affect it. The PMPC grafting abrogated the wear production, confirmed by almost no wear of the liner surface, independently of the liner cross-linking or the femoral head material. We concluded that the PMPC grafting on the PE liner surpasses the liner cross-linking or the change of femoral head materials for extending longevity of artificial hip joints.
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Affiliation(s)
- Toru Moro
- Division of Science for Joint Reconstruction, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Goto Y, Matsuno R, Konno T, Takai M, Ishihara K. Artificial Cell Membrane-Covered Nanoparticles Embedding Quantum Dots as Stable and Highly Sensitive Fluorescence Bioimaging Probes. Biomacromolecules 2008; 9:3252-7. [DOI: 10.1021/bm800819r] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yusuke Goto
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Ryosuke Matsuno
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Tomohiro Konno
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Madoka Takai
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering and Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
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Goda T, Matsuno R, Konno T, Takai M, Ishihara K. Photografting of 2-methacryloyloxyethyl phosphorylcholine from polydimethylsiloxane: Tunable protein repellency and lubrication property. Colloids Surf B Biointerfaces 2008; 63:64-72. [DOI: 10.1016/j.colsurfb.2007.11.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2007] [Revised: 11/08/2007] [Accepted: 11/11/2007] [Indexed: 11/30/2022]
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Goto Y, Matsuno R, Konno T, Takai M, Ishihara K. Polymer Nanoparticles Covered with Phosphorylcholine Groups and Immobilized with Antibody for High-Affinity Separation of Proteins. Biomacromolecules 2008; 9:828-33. [DOI: 10.1021/bm701161d] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yusuke Goto
- Department of Materials Engineering, Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Ryosuke Matsuno
- Department of Materials Engineering, Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Tomohiro Konno
- Department of Materials Engineering, Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Madoka Takai
- Department of Materials Engineering, Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, Department of Bioengineering, School of Engineering, and Center for NanoBio Integration, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8586, Japan
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Tan J, Brash JL. Nonfouling biomaterials based on polyethylene oxide-containing amphiphilic triblock copolymers as surface modifying additives: Solid state structure of PEO-copolymer/polyurethane blends. J Biomed Mater Res A 2008; 85:862-72. [PMID: 17896775 DOI: 10.1002/jbm.a.31548] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three novel polyethylene oxide-containing amphiphilic triblock copolymers (PEO-PU-PEO) with PEO MWs 550, 2000, and 5000, were blended with a segmented polyurethane (PU). It was expected that the block copolymers would act as surface modifiers to produce surfaces rich in PEO. The solid state properties of the PEO-copolymer/PU blends were studied by infrared spectroscopy, differential scanning calorimetry, and tensile stress-strain measurements. Infrared analysis showed no significant hydrogen bonding between the PEO blocks of the copolymers and the PU matrix. Differential scanning calorimetry data indicated that for copolymer content up to 5 wt % the microphase structure of the blends was indistinguishable from that of the unmodified PU matrix; for copolymer content of 10% or greater, the blends showed phase separated structures. Similarly the tensile stress-strain properties of the blends were essentially the same as those of the matrix up to 5 wt % copolymer. At higher copolymer content, however, the tensile strength decreased with increasing content of the copolymers; for a given copolymer content the change in tensile properties increased with increasing PEO MW. The structures of the 20% blends were also investigated after extraction with toluene (copolymers soluble, matrix insoluble). Bulk compositional change upon extraction was determined by nuclear magnetic resonance spectroscopy. Surface compositional change was studied by X-ray photoelectron spectroscopy and water contact angles. Surface morphology was observed using scanning electron microscopy and atomic force microscopy. It was shown that the copolymers were removed from the blends by extraction and that the extent of removal increased with decreasing MW of the PEO block. After toluene extraction, the blend surfaces showed advancing water contact angle and surface elemental composition similar to those of the PU matrix. However in contrast to the relatively smooth matrix surface, the extracted blend surfaces were "decorated" with lacunae or pits. Consistent with the weight loss trends, the extent of pitting was greater for the copolymers having shorter PEO blocks, suggesting that surface enrichment of the copolymers increased with decreasing MW of the copolymers.
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Affiliation(s)
- J Tan
- Department of Chemical Engineering and School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada L8S 4L7
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Kyomoto M, Moro T, Miyaji F, Konno T, Hashimoto M, Kawaguchi H, Takatori Y, Nakamura K, Ishihara K. Enhanced wear resistance of orthopaedic bearing due to the cross-linking of poly(MPC) graft chains induced by gamma-ray irradiation. J Biomed Mater Res B Appl Biomater 2008; 84:320-7. [PMID: 17588248 DOI: 10.1002/jbm.b.30874] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We assumed that the extra energy supplied by gamma-ray irradiation produced cross-links in 2-methacryloyloxyethyl phosphorylcholine (MPC) polymer grafted cross-linked polyethylene (CLPE-g-MPC) and investigated its effects on the tribological properties of CLPE-g-MPC. In this study, we found that the gamma-ray irradiation produced cross-links in three kinds of regions of CLPE-g-MPC: poly(MPC) layer, CLPE-MPC interface, and CLPE substrate. The dynamic coefficient of friction of CLPE-g-MPC slightly increased with increasing irradiation doses. After the simulator test, both the nonsterilized and gamma-ray sterilized CLPE-g-MPC cups exhibited lower wear than the untreated CLPE ones. In particular, the gamma-ray sterilized CLPE-g-MPC cups showed extremely low and stable wear. As for the nonsterilized CLPE-g-MPC cups, the weight change varied with each cup. When the CLPE surface is modified by poly(MPC) grafting, the MPC graft polymer leads to a significant reduction in the sliding friction between the surfaces that are grafted because water thin films formed can behave as extremely efficient lubricants. Such a cross-link of poly(MPC) slightly increases the friction of CLPE by gamma-ray irradiation but provides a stable wear resistant layer on the friction surface. The cross-links formed by gamma-ray irradiation would give further longevity to the CLPE-g-MPC cups.
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Affiliation(s)
- Masayuki Kyomoto
- Research Division, Japan Medical Materials Corporation, Osaka, Japan.
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Nagase Y, Oku M, Iwasaki Y, Ishihara K. Preparations of Aromatic Diamine Monomers and Copolyamides Containing Phosphorylcholine Moiety and the Biocompatibility of Copolyamides. Polym J 2007. [DOI: 10.1295/polymj.pj2006253] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Goda T, Konno T, Takai M, Ishihara K. Photoinduced phospholipid polymer grafting on Parylene film: Advanced lubrication and antibiofouling properties. Colloids Surf B Biointerfaces 2007; 54:67-73. [PMID: 17137760 DOI: 10.1016/j.colsurfb.2006.09.006] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2006] [Revised: 08/18/2006] [Accepted: 09/07/2006] [Indexed: 11/28/2022]
Abstract
Poly(p-xylylene) (Parylene C) coatings have been applied in implantable electronic devices because of their electrical insulation and moisture barrier properties. To provide lubrication and an antibiofouling surface, a biomimetic phospholipid polymer--poly(2-methacryloyloxyethyl phosphorylcholine (MPC))--was grafted from the surface using UV irradiation with benzophenone as an initiator. The poly(MPC) grafting on the Parylene C films was confirmed by attenuated total reflection-Fourier transfer inflated irradiation, X-ray photoelectron spectroscopy and ellipsometry. These analyses indicated that the Parylene C films were completely covered by the poly(MPC)-graft layer with an average thickness of 140 nm under dry condition. The atomic force microscope (AFM) images revealed that the poly(MPC)-graft chains extended under wet condition. However, they formed globular structures under dry condition. Water contact angle measurements revealed a decreased receding angle of 29.5 degrees on the poly(MPC)-grafted surface with a high hysteresis of 41.4 degrees. These results indicate that the poly(MPC)-graft chains gain mobility in a wet environment. The average kinetic friction coefficient of the poly(MPC)-grafted surface in water was 0.018, which was 90% lower than that of the original surface. The in vitro single protein adsorption reduced by over 70% due to the poly(MPC) grafting. The hydrated poly(MPC)-graft chains are considered to provide lubrication and antibiofouling properties. The surface zeta potential measurement clarified the electroneutrality of the poly(MPC)-grafted surface. We concluded that the poly(MPC) grafting from the Parylene C layer significantly improved its surface properties and, subsequently, its biological properties.
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Affiliation(s)
- Tatsuro Goda
- Department of Materials Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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