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Li H, Yan Y, Wei J, Ma J, Gong M, Luo X, Zhang Y. Bone substitute biomedical material of multi-(amino acid) copolymer: in vitro degradation and biocompatibility. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:2555-2563. [PMID: 21898161 DOI: 10.1007/s10856-011-4439-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 08/25/2011] [Indexed: 05/31/2023]
Abstract
Degradable polymers with good mechanical strength as bone repair biomaterials have been paid more attention in biomedical application. In this study, a multi-(amino acid) copolymer consisting of 6-aminocaproic acid and five natural amino acids was prepared by a reaction of acid-catalyzed condensation. The results revealed that the copolymer could be slowly degradable in Tris-HCl solution, and lost its initial weight of 31.9 wt% after immersion for 12 weeks, and the changes of pH value of Tris-HCl solution were in range from 6.9 to 7.4 during soaking. The compressive strength of the copolymer decreased from 107 to 68 MPa after immersion for 12 weeks. The proliferation and differentiation of MG-63 cells on the copolymer significantly increased with time, and the cells with normal phenotype extended and spread well on the copolymer surfaces. When the copolymer was implanted in muscle and bone defects of femoral cortex of dogs for 12 weeks, the histological evaluation confirmed that the copolymer exhibited excellent biocompatibility and more effective osteogenesis in vivo. When implanted into cortical bone defects of dogs, the copolymer could be combined directly with the natural bone without fibrous capsule tissue between implants and host bone. The results indicated that the multi-(amino acid) copolymer with sufficient strength, good biocompatibility and osteoconductivity had clinical potential for load-bearing bone repair or substitution.
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Affiliation(s)
- Hong Li
- School of Physical Science and Technology, Sichuan University, Chengdu 610064, People's Republic of China
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Costa-Pinto AR, Correlo VM, Sol PC, Bhattacharya M, Charbord P, Delorme B, Reis RL, Neves NM. Osteogenic Differentiation of Human Bone Marrow Mesenchymal Stem Cells Seeded on Melt Based Chitosan Scaffolds for Bone Tissue Engineering Applications. Biomacromolecules 2009; 10:2067-73. [DOI: 10.1021/bm9000102] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ana R. Costa-Pinto
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Vitor M. Correlo
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Paula C. Sol
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Mrinal Bhattacharya
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Pierre Charbord
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Bruno Delorme
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Rui L. Reis
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
| | - Nuno M. Neves
- 3B’s Research Group, Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine University of Minho, Avepark, S. Claúdio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal, IBB, Institute for Biotechnology and Bioengineering, PT Government Associated Laboratory, Guimarães, Portugal, Department of Biosystems Engineering, University of Minnesota, St Paul, Minnesota 55108, and
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