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Savin G, Caillol S, Bethry A, Rondet E, Assor M, David G, Nottelet B. Collagen/polyester-polyurethane porous scaffolds for use in meniscal repair. Biomater Sci 2024; 12:2960-2977. [PMID: 38682257 DOI: 10.1039/d4bm00234b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Focusing on the regeneration of damaged knee meniscus, we propose a hybrid scaffold made of poly(ester-urethane) (PEU) and collagen that combines suitable mechanical properties with enhanced biological integration. To ensure biocompatibility and degradability, the degradable PEU was prepared from a poly(ε-caprolactone), L-lysine diisocyanate prepolymer (PCL di-NCO) and poly(lactic-co-glycolic acid) diol (PLGA). The resulting PEU (Mn = 52 000 g mol-1) was used to prepare porous scaffolds using the solvent casting (SC)/particle leaching (PL) method at an optimized salt/PEU weight ratio of 5 : 1. The morphology, pore size and porosity of the scaffolds were evaluated by SEM showing interconnected pores with a uniform size of around 170 μm. Mechanical properties were found to be close to those of the human meniscus (Ey ∼ 0.6 MPa at 37 °C). To enhance the biological properties, incorporation of collagen type 1 (Col) was then performed via soaking, injection or forced infiltration. The latter yielded the best results as shown by SEM-EDX and X-ray tomography analyses that confirmed the morphology and highlighted the efficient pore Col-coating with an average of 0.3 wt% Col in the scaffolds. Finally, in vitro L929 cell assays confirmed higher cell proliferation and an improved cellular affinity towards the proposed scaffolds compared to culture plates and a gold standard commercial meniscal implant.
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Affiliation(s)
- Gaëlle Savin
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
- Arthrocart Biotech, Marseille, France.
| | | | - Audrey Bethry
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Eric Rondet
- QualiSud, Univ Montpellier, Avignon Université, CIRAD, Institut Agro, IRD, Université de la Réunion, Montpellier, France.
| | | | - Ghislain David
- ICGM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
| | - Benjamin Nottelet
- IBMM, Univ Montpellier, CNRS, ENSCM, Montpellier, France.
- Department of Pharmacy, Nîmes University Hospital, 30900, Nimes, France
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Savin G, Sastourne-Array O, Caillol S, Bethry A, Assor M, David G, Nottelet B. Evaluation of Porous (Poly(lactide- co-glycolide)- co-(ε-caprolactone)) Polyurethane for Use in Orthopedic Scaffolds. Molecules 2024; 29:766. [PMID: 38398518 PMCID: PMC10891616 DOI: 10.3390/molecules29040766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
To develop an orthopedic scaffold that could overcome the limitations of implants used in clinics, we designed poly(ester-urethane) foams and compared their properties with those of a commercial gold standard. A degradable poly(ester-urethane) was synthetized by polyaddition between a diisocyanate poly(ε-caprolactone) prepolymer (PCL di-NCO, Mn = 2400 g·mol-1) and poly(lactic-co-glycolic acid) diol (PLGA, Mn = 2200 g·mol-1) acting as a chain extender. The resulting high-molecular-weight poly(ester-urethane) (PEU, Mn = 87,000 g·mol-1) was obtained and thoroughly characterized by NMR, FTIR and SEC-MALS. The porous scaffolds were then processed using the solvent casting (SC)/particle leaching (PL) method with different NaCl crystal concentrations. The morphology, pore size and porosity of the foams were evaluated using SEM, showing interconnected pores with a uniform size of around 150 µm. The mechanical properties of the scaffolds are close to those of the human meniscus (Ey = 0.5~1 MPa). Their degradation under accelerated conditions confirms that incorporating PLGA into the scaffolds greatly accelerates their degradation rate compared to the gold-standard implant. Finally, a cytotoxicity study confirmed the absence of the cytotoxicity of the PEU, with a 90% viability of the L929 cells. These results suggest that degradable porous PLGA/PCL poly(ester-urethane) has potential in the development of meniscal implants.
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Affiliation(s)
- Gaëlle Savin
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (G.S.); (G.D.)
- IBMM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (O.S.-A.); (A.B.)
- Arthrocart Biotech, 13000 Marseille, France;
| | | | - Sylvain Caillol
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (G.S.); (G.D.)
| | - Audrey Bethry
- IBMM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (O.S.-A.); (A.B.)
| | | | - Ghislain David
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (G.S.); (G.D.)
| | - Benjamin Nottelet
- IBMM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France; (O.S.-A.); (A.B.)
- Department of Pharmacy, Nîmes University Hospital, University Montpellier, 30900 Nimes, France
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Geng T, Xiao HC, Wang XC, Liu CT, Wu L, Guo YG, Dong BB, Turng LS. The Study on the Morphology and Compression Properties of Microcellular TPU/Nanoclay Tissue Scaffolds for Potential Tissue Engineering Applications. Polymers (Basel) 2023; 15:3647. [PMID: 37688273 PMCID: PMC10563071 DOI: 10.3390/polym15173647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/09/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Thermoplastic polyurethane (TPU) materials have shown promise in tissue engineering applications due to their mechanical properties and biocompatibility. However, the addition of nanoclays to TPU can further enhance its properties. In this study, the effects of nanoclays on the microstructure, mechanical behavior, cytocompatibility, and proliferation of TPU/nanoclay (TPUNC) composite scaffolds were comprehensively investigated. The dispersion morphology of nanoclays within the TPU matrix was examined using transmission electron microscopy (TEM). It was found that the nanoclays exhibited a well-dispersed and intercalated structure, which contributed to the improved mechanical properties of the TPUNC scaffolds. Mechanical testing revealed that the addition of nanoclays significantly enhanced the compressive strength and elastic resilience of the TPUNC scaffolds. Cell viability and proliferation assays were conducted using MG63 cells cultured on the TPUNC scaffolds. The incorporation of nanoclays did not adversely affect cell viability, as evidenced by the comparable cell numbers between nanoclay-filled and unfilled TPU scaffolds. The presence of nanoclays within the TPUNC scaffolds did not disrupt cell adhesion or proliferation. The incorporation of nanoclays improved the dispersion morphology, enhanced mechanical performance, and maintained excellent biocompatibility. These findings suggest that TPUNC composites have great potential for tissue engineering applications, providing a versatile and promising scaffold material for regenerative medicine.
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Affiliation(s)
- Tie Geng
- Henan Provincial Engineering Research Centre of Automotive Composite Materials, School of Mechanical & Electrical Engineering, Henan University of Technology, Zhengzhou 450052, China; (T.G.); (H.-C.X.); (L.W.); (Y.-G.G.)
| | - Han-Chi Xiao
- Henan Provincial Engineering Research Centre of Automotive Composite Materials, School of Mechanical & Electrical Engineering, Henan University of Technology, Zhengzhou 450052, China; (T.G.); (H.-C.X.); (L.W.); (Y.-G.G.)
| | - Xin-Chao Wang
- Henan Provincial Engineering Research Centre of Automotive Composite Materials, School of Mechanical & Electrical Engineering, Henan University of Technology, Zhengzhou 450052, China; (T.G.); (H.-C.X.); (L.W.); (Y.-G.G.)
| | - Chun-Tai Liu
- National Engineering Research Center for Advanced Polymer Processing Technologies, Zhengzhou University, Zhengzhou 450001, China;
| | - Lan Wu
- Henan Provincial Engineering Research Centre of Automotive Composite Materials, School of Mechanical & Electrical Engineering, Henan University of Technology, Zhengzhou 450052, China; (T.G.); (H.-C.X.); (L.W.); (Y.-G.G.)
| | - Yong-Gang Guo
- Henan Provincial Engineering Research Centre of Automotive Composite Materials, School of Mechanical & Electrical Engineering, Henan University of Technology, Zhengzhou 450052, China; (T.G.); (H.-C.X.); (L.W.); (Y.-G.G.)
| | - Bin-Bin Dong
- National Engineering Research Center for Advanced Polymer Processing Technologies, Zhengzhou University, Zhengzhou 450001, China;
| | - Lih-Sheng Turng
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, Madison, WI 53706, USA
- Department of Mechanical Engineering, University of Wisconsin–Madison, Madison, WI 53706, USA
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Freedman BR, Mooney DJ, Weber E. Advances toward transformative therapies for tendon diseases. Sci Transl Med 2022; 14:eabl8814. [PMID: 36070365 PMCID: PMC11041812 DOI: 10.1126/scitranslmed.abl8814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Approved therapies for tendon diseases have not yet changed the clinical practice of symptomatic pain treatment and physiotherapy. This review article summarizes advances in the development of novel drugs, biologic products, and biomaterial therapies for tendon diseases with perspectives for translation of integrated therapies. Shifting from targeting symptom relief toward disease modification and prevention of disease progression may open new avenues for therapies. Deep evidence-based clinical, cellular, and molecular characterization of the underlying pathology of tendon diseases, as well as therapeutic delivery optimization and establishment of multidiscipline interorganizational collaboration platforms, may accelerate the discovery and translation of transformative therapies for tendon diseases.
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Affiliation(s)
- Benjamin R. Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - David J. Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
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Wandel MB, Bell CA, Yu J, Arno MC, Dreger NZ, Hsu YH, Pitto-Barry A, Worch JC, Dove AP, Becker ML. Concomitant control of mechanical properties and degradation in resorbable elastomer-like materials using stereochemistry and stoichiometry for soft tissue engineering. Nat Commun 2021; 12:446. [PMID: 33469013 PMCID: PMC7815890 DOI: 10.1038/s41467-020-20610-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 12/07/2020] [Indexed: 11/24/2022] Open
Abstract
Complex biological tissues are highly viscoelastic and dynamic. Efforts to repair or replace cartilage, tendon, muscle, and vasculature using materials that facilitate repair and regeneration have been ongoing for decades. However, materials that possess the mechanical, chemical, and resorption characteristics necessary to recapitulate these tissues have been difficult to mimic using synthetic resorbable biomaterials. Herein, we report a series of resorbable elastomer-like materials that are compositionally identical and possess varying ratios of cis:trans double bonds in the backbone. These features afford concomitant control over the mechanical and surface eroding degradation properties of these materials. We show the materials can be functionalized post-polymerization with bioactive species and enhance cell adhesion. Furthermore, an in vivo rat model demonstrates that degradation and resorption are dependent on succinate stoichiometry in the elastomers and the results show limited inflammation highlighting their potential for use in soft tissue regeneration and drug delivery.
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Affiliation(s)
- Mary Beth Wandel
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Craig A Bell
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK
- Centre for Advanced Imaging, The University of Queensland, St Lucia, QLD, 4072, Australia
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Jiayi Yu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Maria C Arno
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Nathan Z Dreger
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Yen-Hao Hsu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Anaïs Pitto-Barry
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK
| | - Joshua C Worch
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Andrew P Dove
- School of Chemistry, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Matthew L Becker
- Department of Chemistry, Mechanical Engineering and Materials Science, Orthopaedic Surgery, Duke University, Durham, NC, 20899, USA.
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Freedman BR, Mooney DJ. Biomaterials to Mimic and Heal Connective Tissues. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806695. [PMID: 30908806 PMCID: PMC6504615 DOI: 10.1002/adma.201806695] [Citation(s) in RCA: 115] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/27/2019] [Indexed: 05/11/2023]
Abstract
Connective tissue is one of the four major types of animal tissue and plays essential roles throughout the human body. Genetic factors, aging, and trauma all contribute to connective tissue dysfunction and motivate the need for strategies to promote healing and regeneration. The goal here is to link a fundamental understanding of connective tissues and their multiscale properties to better inform the design and translation of novel biomaterials to promote their regeneration. Major clinical problems in adipose tissue, cartilage, dermis, and tendon are discussed that inspire the need to replace native connective tissue with biomaterials. Then, multiscale structure-function relationships in native soft connective tissues that may be used to guide material design are detailed. Several biomaterials strategies to improve healing of these tissues that incorporate biologics and are biologic-free are reviewed. Finally, important guidance documents and standards (ASTM, FDA, and EMA) that are important to consider for translating new biomaterials into clinical practice are highligted.
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Affiliation(s)
- Benjamin R Freedman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - David J Mooney
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
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8
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Kishan AP, Wilems T, Mohiuddin S, Cosgriff-Hernandez EM. Synthesis and Characterization of Plug-and-Play Polyurethane Urea Elastomers as Biodegradable Matrixes for Tissue Engineering Applications. ACS Biomater Sci Eng 2017; 3:3493-3502. [DOI: 10.1021/acsbiomaterials.7b00512] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Alysha P. Kishan
- Department of Biomedical Engineering, Texas A&M University, 5045 Emerging Technologies Building, 3120 TAMU, College Station, Texas 77843-3120, United States
| | - Thomas Wilems
- Department
of Biomedical Engineering, University of Texas, 107 W. Dean Keaton, 1 University Station, Austin, Texas 78712, United States
| | - Sahar Mohiuddin
- Department of Biomedical Engineering, Texas A&M University, 5045 Emerging Technologies Building, 3120 TAMU, College Station, Texas 77843-3120, United States
| | - Elizabeth M. Cosgriff-Hernandez
- Department
of Biomedical Engineering, University of Texas, 107 W. Dean Keaton, 1 University Station, Austin, Texas 78712, United States
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Effect of hydrothermal ageing on structure and physical properties of one-phase and two-phase entirely lipid-derived thermoplastic poly(ester urethane)s. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2016.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Gabriel LP, Santos MEMD, Jardini AL, Bastos GNT, Dias CGBT, Webster TJ, Maciel Filho R. Bio-based polyurethane for tissue engineering applications: How hydroxyapatite nanoparticles influence the structure, thermal and biological behavior of polyurethane composites. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 13:201-208. [PMID: 27720929 DOI: 10.1016/j.nano.2016.09.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2016] [Revised: 09/13/2016] [Accepted: 09/19/2016] [Indexed: 12/11/2022]
Abstract
In this work, thermoset polyurethane composites were prepared by the addition of hydroxyapatite nanoparticles using the reactants polyol polyether and an aliphatic diisocyanate. The polyol employed in this study was extracted from the Euterpe oleracea Mart. seeds from the Amazon Region of Brazil. The influence of hydroxyapatite nanoparticles on the structure and morphology of the composites was studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), the structure was evaluated by Fourier transform infrared spectroscopy (FT-IR), thermal properties were analyzed by thermogravimetry analysis (TGA), and biological properties were studied by in vitro and in vivo studies. It was found that the addition of HA nanoparticles promoted fibroblast adhesion while in vivo investigations with histology confirmed that the composites promoted connective tissue adherence and did not induce inflammation. In this manner, this study supports the further investigation of bio-based, polyurethane/hydroxyapatite composites as biocompatible scaffolds for numerous tissue engineering applications.
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Affiliation(s)
- Laís P Gabriel
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
| | | | - André L Jardini
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
| | - Gilmara N T Bastos
- Federal University of Pará, Laboratory of Neuroinflammation, Belém, Pará, Brazil
| | - Carmen G B T Dias
- Federal University of Pará, Mechanical Engineering Department, Belém, Pará, Brazil
| | - Thomas J Webster
- Northeastern University, Chemical Engineering Department, Boston, MA, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Rubens Maciel Filho
- University of Campinas, Chemical Engineering Department, Campinas, São Paulo, Brazil
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Abstract
Rotator cuff tears continue to be at significant risk for re-tear or for failure to heal after surgical repair despite the use of a variety of surgical techniques and augmentation devices. Therefore, there is a need for functionalized scaffold strategies to provide sustained mechanical augmentation during the critical first 12-weeks following repair, and to enhance the healing potential of the repaired tendon and tendon-bone interface. Tissue engineered approaches that combine the use of scaffolds, cells, and bioactive molecules towards promising new solutions for rotator cuff repair are reviewed. The ideal scaffold should have adequate initial mechanical properties, be slowly degrading or non-degradable, have non-toxic degradation products, enhance cell growth, infiltration and differentiation, promote regeneration of the tendon-bone interface, be biocompatible and have excellent suture retention and handling properties. Scaffolds that closely match the inhomogeneity and non-linearity of the native rotator cuff may significantly advance the field. While substantial pre-clinical work remains to be done, continued progress in overcoming current tissue engineering challenges should allow for successful clinical translation.
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Poręba R, Kredatusová J, Hodan J, Serkis M, Špírková M. Thermal and mechanical properties of multiple-component aliphatic degradable polyurethanes. J Appl Polym Sci 2015. [DOI: 10.1002/app.41872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Rafał Poręba
- Institute of Macromolecular Chemistry AS CR; v.v.i., Heyrovského nám. 2, 162 06 Praha 6 Czech Republic
| | - Jana Kredatusová
- Institute of Macromolecular Chemistry AS CR; v.v.i., Heyrovského nám. 2, 162 06 Praha 6 Czech Republic
| | - Jiří Hodan
- Institute of Macromolecular Chemistry AS CR; v.v.i., Heyrovského nám. 2, 162 06 Praha 6 Czech Republic
| | - Magdalena Serkis
- Institute of Macromolecular Chemistry AS CR; v.v.i., Heyrovského nám. 2, 162 06 Praha 6 Czech Republic
| | - Milena Špírková
- Institute of Macromolecular Chemistry AS CR; v.v.i., Heyrovského nám. 2, 162 06 Praha 6 Czech Republic
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Gigli M, Govoni M, Lotti N, Giordano ED, Gazzano M, Munari A. Biocompatible multiblock aliphatic polyesters containing ether-linkages: influence of molecular architecture on solid-state properties and hydrolysis rate. RSC Adv 2014. [DOI: 10.1039/c4ra04248d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new class of biodegradable and biocompatible multiblock copolyesters containing butylene 1,4- cyclohexanedicarboxylate sequences is presented.
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Affiliation(s)
- Matteo Gigli
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
| | - Marco Govoni
- BioEngLab
- Health Science and Technology-Interdepartmental Center for Industrial Research (HST-CIRI)
- University of Bologna
- Ozzano Emilia (BO), Italy
| | - Nadia Lotti
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
| | - Emanuele D. Giordano
- BioEngLab
- Health Science and Technology-Interdepartmental Center for Industrial Research (HST-CIRI)
- University of Bologna
- Ozzano Emilia (BO), Italy
- Laboratory of Cellular and Molecular Engineering “Silvio Cavalcanti”
| | - Massimo Gazzano
- Institute for the Organic Synthesis and Photoreactivity
- CNR
- Bologna, Italy
| | - Andrea Munari
- Civil, Chemical, Environmental and Materials Engineering Department
- University of Bologna
- Bologna, Italy
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