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Mai J, Pratt S, Laycock B, Chan CM. Synthesis and Characterisation of Poly(3-hydroxybutyrate- co-3-hydroxyvalerate)- b-poly(3-hydroxybutyrate- co-3-hydroxyvalerate) Multi-Block Copolymers Produced Using Diisocyanate Chemistry. Polymers (Basel) 2023; 15:3257. [PMID: 37571152 PMCID: PMC10422281 DOI: 10.3390/polym15153257] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
Bacterially derived polyhydroxyalkanoates (PHAs) are attractive alternatives to commodity petroleum-derived plastics. The most common forms of the short chain length (scl-) PHAs, including poly(3-hydroxybutyrate) (P3HB) and poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), are currently limited in application because they are relatively stiff and brittle. The synthesis of PHA-b-PHA block copolymers could enhance the physical properties of PHAs. Therefore, this work explores the synthesis of PHBV-b-PHBV using relatively high molecular weight hydroxy-functionalised PHBV starting materials, coupled using facile diisocyanate chemistry, delivering industrially relevant high-molecular-weight block copolymeric products. A two-step synthesis approach was compared with a one-step approach, both of which resulted in successful block copolymer production. However, the two-step synthesis was shown to be less effective in building molecular weight. Both synthetic approaches were affected by additional isocyanate reactions resulting in the formation of by-products such as allophanate and likely biuret groups, which delivered partial cross-linking and higher molecular weights in the resulting multi-block products, identified for the first time as likely and significant by-products in such reactions, affecting the product performance.
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Affiliation(s)
| | | | - Bronwyn Laycock
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia; (J.M.); (S.P.)
| | - Clement Matthew Chan
- School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072, Australia; (J.M.); (S.P.)
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2
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Mai J, Chan CM, Laycock B, Pratt S. Understanding the Reaction of Hydroxy-Terminated Poly(3-hydroxybutyrate- co-3-hydroxyvalerate) (PHBV) Random Copolymers with a Monoisocyanate. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Affiliation(s)
- Jingjing Mai
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Clement Matthew Chan
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Bronwyn Laycock
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Steven Pratt
- School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia
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3
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Fang Y, Ning W, Li Y, Li F, Pournajaf R, Hamawandi B. The Effects of the Addition of Polyurethane-MgO Nanohybrids on the Mechanical Properties of Ordinary Portland Cement Paste. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3978. [PMID: 36432264 PMCID: PMC9692826 DOI: 10.3390/nano12223978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/05/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
One of the most important methods of controlling the properties of concrete and cement-based materials is to control the rate and kinetics of cement hydration. In the present study, novel flexible polyurethane-decorated MgO nanohybrids were synthesized using a simple chemical method, added to cement paste in different amounts, and utilized as an effective mechanical performance-enhancing factor for cement paste. It was observed that by adding 3 wt% synthesized PU-MgO nanohybrids to cement paste, its mechanical properties were improved and its compressive strength and flexural strength were increased by up to 13% and 15%, respectively, compared to the plain cement, after 45 days. The effect mechanism of adding PU-MgO nanoparticles on the properties of the cement paste was investigated. The addition of PU-MgO nanohybrids increased the pozzolanic reactions and formed more C-S-H phases.
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Affiliation(s)
- Yu Fang
- College of Urban Construction, Xi’an Siyuan University, Xi’an 710038, China
| | - Weiqing Ning
- College of Urban Construction, Xi’an Siyuan University, Xi’an 710038, China
| | - Yuan Li
- College of Urban Construction, Xi’an Siyuan University, Xi’an 710038, China
| | - Fang Li
- College of Urban Construction, Xi’an Siyuan University, Xi’an 710038, China
| | - Reza Pournajaf
- Advanced Materials Research Center, Department of Materials Engineering, Najafabad Branch, Islamic Azad University, Najafabad 85141-43131, Iran
| | - Bejan Hamawandi
- Department of Applied Physics, KTH Royal Institute of Technology, SE-106 91 Stockholm, Sweden
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Mai J, Chan CM, Colwell J, Pratt S, Laycock B. Characterisation of end groups of hydroxy-functionalised scl-PHAs prepared by transesterification using ethylene glycol. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Guo W, Yang K, Qin X, Luo R, Wang H, Huang R. Polyhydroxyalkanoates in tissue repair and regeneration. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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6
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Raza ZA, Noor S, Majeed MI. PEGylation of poly(hydroxybutyrate) into multicomponent nanostructures and loading thereon with bioactive molecules for potential biomedical applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02467-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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7
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Raza ZA, Khalil S, Abid S. Recent progress in development and chemical modification of poly(hydroxybutyrate)-based blends for potential medical applications. Int J Biol Macromol 2020; 160:77-100. [DOI: 10.1016/j.ijbiomac.2020.05.114] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 04/25/2020] [Accepted: 05/15/2020] [Indexed: 02/06/2023]
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8
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Rivera Nicholls A, Craft G, Perez Y, Pellissier M, Stock JA, Testemale M, Kull K, Eubank J, Harmon JP. Thermomechanical characterization of thermoplastic polyimide to improve the chain interaction via crystalline domains. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | | | | | | | - Ken Kull
- University of South Florida Tampa Florida 33620
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9
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Gregorí Valdés BS, Gomes CSB, Gomes PT, Ascenso JR, Diogo HP, Gonçalves LM, Galhano Dos Santos R, Ribeiro HM, Bordado JC. Synthesis and Characterization of Isosorbide-Based Polyurethanes Exhibiting Low Cytotoxicity Towards HaCaT Human Skin Cells. Polymers (Basel) 2018; 10:polym10101170. [PMID: 30961095 PMCID: PMC6403884 DOI: 10.3390/polym10101170] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 10/12/2018] [Accepted: 10/17/2018] [Indexed: 12/02/2022] Open
Abstract
The synthesis of four samples of new polyurethanes was evaluated by changing the ratio of the diol monomers used, poly(propylene glycol) (PPG) and D-isosorbide, in the presence of aliphatic isocyanates such as the isophorone diisocyanate (IPDI) and 4,4′-methylenebis(cyclohexyl isocyanate) (HMDI). The thermal properties of the four polymers obtained were determined by DSC, exhibiting Tg values in the range 55–70 °C, and their molecular structure characterized by FTIR, 1H, and 13C NMR spectroscopies. The diffusion coefficients of these polymers in solution were measured by the Pulse Gradient Spin Echo (PGSE) NMR method, enabling the calculation of the corresponding hydrodynamic radii in diluted solution (1.62–2.65 nm). The molecular weights were determined by GPC/SEC and compared with the values determined by a quantitative 13C NMR analysis. Finally, the biocompatibility of the polyurethanes was assessed using the HaCaT keratinocyte cell line by the MTT reduction assay method showing values superior to 70% cell viability.
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Affiliation(s)
- Barbara S Gregorí Valdés
- CERENA, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
- Research Institute for Medicine and Pharmaceutical Science (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Clara S B Gomes
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Pedro T Gomes
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - José R Ascenso
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Hermínio P Diogo
- Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Lídia M Gonçalves
- Research Institute for Medicine and Pharmaceutical Science (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Rui Galhano Dos Santos
- CERENA, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - Helena M Ribeiro
- Research Institute for Medicine and Pharmaceutical Science (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal.
| | - João C Bordado
- CERENA, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
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Debuissy T, Pollet E, Avérous L. Synthesis and characterization of block poly(ester-ether-urethane)s from bacterial poly(3-hydroxybutyrate) oligomers. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28567] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Thibaud Debuissy
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg; 25 rue Becquerel, Strasbourg Cedex 2 Strasbourg 67087 France
| | - Eric Pollet
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg; 25 rue Becquerel, Strasbourg Cedex 2 Strasbourg 67087 France
| | - Luc Avérous
- BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg; 25 rue Becquerel, Strasbourg Cedex 2 Strasbourg 67087 France
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11
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Volova T, Zhila N, Kiselev E, Shishatskaya E. A study of synthesis and properties of poly-3-hydroxybutyrate/diethylene glycol copolymers. Biotechnol Prog 2016; 32:1017-28. [DOI: 10.1002/btpr.2267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 03/08/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Tatiana Volova
- Inst. of Biophysics SB RAS; Akademgorodok 50 Krasnoyarsk 660036 Russian Federation
| | - Natalia Zhila
- Inst. of Biophysics SB RAS; Akademgorodok 50 Krasnoyarsk 660036 Russian Federation
| | - Evgeniy Kiselev
- Inst. of Biophysics SB RAS; Akademgorodok 50 Krasnoyarsk 660036 Russian Federation
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12
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Li L, Liu X, Niu Y, Ye J, Huang S, Liu C, Xu K. Synthesis and wound healing of alternating block polyurethanes based on poly(lactic acid) (PLA) and poly(ethylene glycol) (PEG). J Biomed Mater Res B Appl Biomater 2016; 105:1200-1209. [DOI: 10.1002/jbm.b.33670] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 01/21/2016] [Accepted: 03/10/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Linjing Li
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
| | - Xiangyu Liu
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
| | - Yuqing Niu
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
| | - Jianfu Ye
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
| | - Shuiwen Huang
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
| | - Chao Liu
- Aleo BME, Inc; University Park Pennsylvania 16802
| | - Kaitian Xu
- Multidisciplinary Research Center, Shantou University; Shantou Guangdong 515063 China
- Department of Materials Science and Engineering; Jinan University; Guangzhou 510632 China
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13
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The Synthesis of Hydroxybutyrate-Based Block Polyurethane from Telechelic Diols with Robust Thermal and Mechanical Properties. J CHEM-NY 2016. [DOI: 10.1155/2016/9635165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A series of novel amphiphilic block polyurethanes (PUHE) have been successfully synthesized by solution polymerization of the derived PHB-diol and poly(ethylene glycol) with a coupling agent of 1,6-hexamethylene diisocyanate (HDI), while the PHB-diol was prepared via the transesterification of PHB and ethylene glycol. The hydroxyl contents in PHB-diols range from 1.36 to 1.99 (the molar ratio) as determined by nonaqueous titration. The molecular weight and chemical compositions of PUHE and PHB-diol were investigated by GPC,1H NMR, and FTIR in detail, which confirm the successful synthesis of PUHE. The tensile strength and elongation at break of PUHE could reach as high as 20 MPa and 210%, as the content of PHB in PUHE is 33%. TGA curves indicate that block-bonding between PHB-diol and PEG increases the thermal stability of PHB-diol. Film degradation of PUHE was studied by weight loss and scanning electron microscope (SEM). It could be concluded that degradation occurred gradually from the surface to the inside and that the degradation rate could be controlled by adjusting the PHB/PEG ratios. These properties make PUHE able to be used as a biodegradable thermoplastic elastomer.
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14
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Fan W, Tong X, Yan Q, Fu S, Zhao Y. Photodegradable and size-tunable single-chain nanoparticles prepared from a single main-chain coumarin-containing polymer precursor. Chem Commun (Camb) 2015; 50:13492-4. [PMID: 25236937 DOI: 10.1039/c4cc06629d] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polyester bearing coumarin moieties in the main chain was used to prepare photodegradable single-chain nanoparticles (SCNPs) of variable sizes. While the intra-chain photodimerization of the chromophore determines the size of SCNPs, the photocleavage occurring under UV irradiation at a different wavelength breaks down the ultra-small nanoparticles.
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Affiliation(s)
- Weizheng Fan
- Département de Chimie, Université de Sherbrooke, Sherbrooke, QC, CanadaJ1K 2R1.
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15
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Niu Y, Li L, Chen KC, Chen F, Liu X, Ye J, Li W, Xu K. Scaffolds from alternating block polyurethanes of poly(ɛ-caprolactone) and poly(ethylene glycol) with stimulation and guidance of nerve growth and better nerve repair than autograft. J Biomed Mater Res A 2014; 103:2355-64. [DOI: 10.1002/jbm.a.35372] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 11/16/2014] [Indexed: 11/12/2022]
Affiliation(s)
- Yuqing Niu
- Multidisciplinary Research Center, Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Linjing Li
- Multidisciplinary Research Center, Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Kevin C. Chen
- Multidisciplinary Research Center, Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Feiran Chen
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Xiangyu Liu
- Multidisciplinary Research Center, Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Jianfu Ye
- Multidisciplinary Research Center, Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Wei Li
- Department of Neurosurgery; the First Affiliated Hospital, Jinan University; Guangzhou 510630 China
| | - Kaitian Xu
- Department of Materials Science and Engineering; Jinan University; Guangzhou 510632 China
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Mei T, Zhu Y, Ma T, He T, Li L, Wei C, Xu K. Synthesis, characterization, and biocompatibility of alternating block polyurethanes based on PLA and PEG. J Biomed Mater Res A 2013. [DOI: 10.1002/jbm.a.35004] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Tingzhen Mei
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Yonghe Zhu
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Tongcui Ma
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Tao He
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Linjing Li
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Chiju Wei
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Kaitian Xu
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
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17
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Li G, Li D, Niu Y, He T, Chen KC, Xu K. Alternating block polyurethanes based on PCL and PEG as potential nerve regeneration materials. J Biomed Mater Res A 2013; 102:685-97. [DOI: 10.1002/jbm.a.34732] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2013] [Revised: 03/19/2013] [Accepted: 03/21/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Guangyao Li
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Dandan Li
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Yuqing Niu
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Tao He
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Kevin C. Chen
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
| | - Kaitian Xu
- Multidisciplinary Research Center; Shantou University; Daxue Lu 243 Shantou Guangdong 515063 China
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18
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Bonartsev AP, Yakovlev SG, Zharkova II, Boskhomdzhiev AP, Bagrov DV, Myshkina VL, Makhina TK, Kharitonova EP, Samsonova OV, Feofanov AV, Voinova VV, Zernov AL, Efremov YM, Bonartseva GA, Shaitan KV, Kirpichnikov MP. Cell attachment on poly(3-hydroxybutyrate)-poly(ethylene glycol) copolymer produced by Azotobacter chroococcum 7B. BMC BIOCHEMISTRY 2013; 14:12. [PMID: 23692611 PMCID: PMC3724502 DOI: 10.1186/1471-2091-14-12] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 04/19/2013] [Indexed: 11/18/2022]
Abstract
BACKGROUND The improvement of biomedical properties, e.g. biocompatibility, of poly(3-hydroxyalkanoates) (PHAs) by copolymerization is a promising trend in bioengineering. We used strain Azotobacter chroococcum 7B, an effective producer of PHAs, for biosynthesis of not only poly(3-hydroxybutyrate) (PHB) and its main copolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-HV), but also alternative copolymer, poly(3-hydroxybutyrate)-poly(ethylene glycol) (PHB-PEG). RESULTS In biosynthesis we used sucrose as the primary carbon source and valeric acid or poly(ethylene glycol) 300 (PEG 300) as additional carbon sources. The chemical structure of PHB-PEG and PHB-HV was confirmed by 1H nuclear-magnetic resonance (1H NMR) analysis. The physico-chemical properties (molecular weight, crystallinity, hydrophilicity, surface energy) and surface morphology of films from PHB copolymers were studied. To study copolymers biocompatibility in vitro the protein adsorption and COS-1 fibroblasts growth on biopolymer films by XTT assay were analyzed. Both copolymers had changed physico-chemical properties compared to PHB homopolymer: PHB-HV and PHB-PEG had less crystallinity than PHB; PHB-HV was more hydrophobic than PHB in contrast to PHB-PEG appeared to have greater hydrophilicity than PHB; whereas the morphology of polymer films did not differ significantly. The protein adsorption to PHB-PEG was greater and more uniform than to PHB and PHB-PEG copolymer promoted better growth of COS-1 fibroblasts compared with PHB homopolymer. CONCLUSIONS Thus, despite low EG-monomers content in bacterial origin PHB-PEG copolymer, this polymer demonstrated significant improvement in biocompatibility in contrast to PHB and PHB-HV copolymers, which may be coupled with increased protein adsorption and hydrophilicity of PEG-containing copolymer.
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Affiliation(s)
- Anton P Bonartsev
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Sergey G Yakovlev
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Irina I Zharkova
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | | | - Dmitrii V Bagrov
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | - Vera L Myshkina
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Tatiana K Makhina
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Elena P Kharitonova
- Faculty of Physics, M.V.Lomonosov Moscow State University, Leninskie gory, 1-2, Moscow, 119991, Russia
| | - Olga V Samsonova
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | - Alexey V Feofanov
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | - Vera V Voinova
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Anton L Zernov
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Yurii M Efremov
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | - Garina A Bonartseva
- A.N.Bach Institute of Biochemistry RAS, Leninskii av., 33-2, Moscow, 119071, Russia
| | - Konstantin V Shaitan
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
| | - Michail P Kirpichnikov
- Faculty of Biology, M.V.Lomonosov Moscow State University, Leninskie gory, 1-12, Moscow, 119236, Russia
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19
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Bonartsev A, Yakovlev S, Boskhomdzhiev A, Zharkova I, Bagrov D, Myshkina V, Mahina T, Kharitonova E, Samsonova O, Zernov A, Zhuikov V, Efremov Y, Voinova V, Bonartseva G, Shaitan K. The terpolymer produced by Azotobacter chroococcum 7B: effect of surface properties on cell attachment. PLoS One 2013; 8:e57200. [PMID: 23468935 PMCID: PMC3582562 DOI: 10.1371/journal.pone.0057200] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 01/18/2013] [Indexed: 12/02/2022] Open
Abstract
The copolymerization of poly(3-hydroxybutyrate) (PHB) is a promising trend in bioengineering to improve biomedical properties, e.g. biocompatibility, of this biodegradable polymer. We used strain Azotobacter chroococcum 7B, an effective producer of PHB, for biosynthesis of not only homopolymer and its main copolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHB-HV), but also novel terpolymer, poly(3-hydroxybutyrate-co-3-hydroxyvalerate)-poly(ethylene glycol) (PHB-HV-PEG), using sucrose as the primary carbon source and valeric acid and poly(ethylene glycol) 300 (PEG 300) as additional carbon sources. The chemical structure of PHB-HV-PEG was confirmed by (1)H nuclear-magnetic resonance analysis. The physico-chemical properties (molecular weight, crystallinity, hydrophilicity, surface energy) of produced biopolymer, the protein adsorption to the terpolymer, and cell growth on biopolymer films were studied. Despite of low EG-monomers content in bacterial-origin PHB-HV-PEG polymer, the terpolymer demonstrated significant improvement in biocompatibility in vitro in contrast to PHB and PHB-HV polymers, which may be coupled with increased protein adsorption, hydrophilicity and surface roughness of PEG-containing copolymer.
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Affiliation(s)
- Anton Bonartsev
- Faculty of Biology, Moscow State University, Moscow, Russia.
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Qiu H, Li D, Chen X, Fan K, Ou W, Chen KC, Xu K. Synthesis, characterizations, and biocompatibility of block poly(ester-urethane)s based on biodegradable poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB) and poly(ε-caprolactone). J Biomed Mater Res A 2012; 101:75-86. [PMID: 22826204 DOI: 10.1002/jbm.a.34302] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 05/23/2012] [Accepted: 05/24/2012] [Indexed: 11/06/2022]
Abstract
A type of block poly(ester-urethane)s (abbreviated as PUBC) based on bacterial copolyester poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P3/4HB) and biodegradable poly(ε-caprolactone) (PCL) was synthesized by melting polymerization using 1,6-hexamethylene diisocyanate (HDI) as the coupling agent, with different 3HB, 4HB and PCL contents and segment lengths. Stannous octanoate (Sn(Oct)(2)) was used as catalyst. The chemical structure, molecular weight and thermal property were characterized by (1)H NMR, FTIR GPC, DSC and TGA. DSC analysis revealed that the PUBC polyurethanes exhibit amorphous to semi-crystalline (20.9% crystallinity degree) with T(g) range from -39.7 to -21.5 °C. The hydrophilicity was investigated by static contact angle of deionized water and CH(2)I(2). The obtained PUBCs are hydrophobic (water contact angle 73.7-90.2°). Platelet adhesion study and plasma recalcification time revealed that the block polyurethanes possess hemastasis ability. CCK-8 assay illuminated that the no cytotoxic polyurethanes maintain rat aortic smooth muscle cells (RaSMCs) good viability. It was found that the 4HB content in the materials is an important factor to affect the sustainable cell viability.
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Affiliation(s)
- Handi Qiu
- Multidisciplinary Research Center, Shantou University, Shantou, Guangdong 515063, China
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Li G, Liu Y, Li D, Zhang L, Xu K. A comparative study on structure-property elucidation of P3/4HB and PEG-based block polyurethanes. J Biomed Mater Res A 2012; 100:2319-29. [DOI: 10.1002/jbm.a.34173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 03/05/2012] [Accepted: 03/07/2012] [Indexed: 11/10/2022]
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Boutevin B, Ameduri B, Elidrissi A, Touzani R. Synthesis and Properties of Long-Chain Aromatic Telechelic Monodispersed Diols Radical-Initiated, Addition of 2-Mercaptoethanol onto α, ω Nonconjugated Dienes. PHOSPHORUS SULFUR 2012. [DOI: 10.1080/10426507.2011.625512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Bernard Boutevin
- a Laboratory of Macromolecular Chemistry, UMR (CNRS) 5076 , Ecole Nationale Supérieure de Chimie de Montpellier , Montpellier Cedex 1 , France
| | - Bruno Ameduri
- a Laboratory of Macromolecular Chemistry, UMR (CNRS) 5076 , Ecole Nationale Supérieure de Chimie de Montpellier , Montpellier Cedex 1 , France
| | - Abderrahmane Elidrissi
- b LCAE-URAC18, Department of Chemistry, Science Faculty , Mohamed Ier University , Oujda , Morocco
| | - Rachid Touzani
- b LCAE-URAC18, Department of Chemistry, Science Faculty , Mohamed Ier University , Oujda , Morocco
- c Faculté Pluridisciplinaire de Nador , Université Mohammed Ier , Nador , Morocco
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Bernier MC, El Kirat K, Besse M, Morandat S, Vayssade M. Preosteoblasts and fibroblasts respond differently to anatase titanium dioxide nanoparticles: a cytotoxicity and inflammation study. Colloids Surf B Biointerfaces 2011; 90:68-74. [PMID: 22019048 DOI: 10.1016/j.colsurfb.2011.09.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Revised: 09/23/2011] [Accepted: 09/27/2011] [Indexed: 01/08/2023]
Abstract
There is a bundle of proofs suggesting that some industrial nanoparticles (NPs) can provoke diseases and pollute the environment durably. However, these issues still remain controversial. In the biomedical field, TiO(2) NPs were recently proposed to serve as fillers in polymeric materials to improve bone prostheses and scaffolds. Submicrometer TiO(2) particles could also result from wear debris of prostheses. Thus, it appears to be of the highest importance to elucidate the effects of well-characterized TiO(2) NPs on the behaviour of osteoblasts. In this work, we have measured the toxicity of anatase TiO(2) NPs with two different cell types, on L929 fibroblasts and for the first time on MC-3T3 pre-osteoblasts, with the aim to determine the level of cellular toxicity and inflammation. Our results clearly show that these NPs provoke different dose-response effects, with the pre-osteoblasts being much more sensitive than fibroblasts. Furthermore, we observed that anatase TiO(2) NPs had no effect on cell adhesion. By contrast, both cell types had their morphology and LDH release modified in the presence of NPs. Their DNA was also found to be fragmented as analyzed by quantifying the sub-G1 cell population with flow cytometry. By measuring the production of IL-6 and TNF-α proinflammatory cytokines, we have shown that TNF-α was never produced and that MC-3T3 cells were secreting IL-6. Most importantly, our results highlight the necessity of evaluating the toxicity of prostheses wear debris, and of NP coatings of medical implants, to determine if they can possibly provoke inflammation and inhibit bone reconstruction.
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Affiliation(s)
- Marie-Charlotte Bernier
- Université de Technologie de Compiègne, Centre de Recherches de Royallieu, CNRS UMR 6600, Compiègne, France
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