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Górecka Ż, Idaszek J, Heljak M, Martinez DC, Choińska E, Kulas Z, Święszkowski W. Indocyanine green and iohexol loaded hydroxyapatite in poly(L-lactide-co-caprolactone)-based composite for bimodal near-infrared fluorescence- and X-ray-based imaging. J Biomed Mater Res B Appl Biomater 2024; 112:e35313. [PMID: 37596854 DOI: 10.1002/jbm.b.35313] [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: 02/03/2023] [Revised: 07/19/2023] [Accepted: 07/31/2023] [Indexed: 08/20/2023]
Abstract
This study aimed to develop material for multimodal imaging by means of X-ray and near-infrared containing FDA- and EMA-approved iohexol and indocyanine green (ICG). The mentioned contrast agents (CAs) are hydrophilic and amphiphilic, respectively, which creates difficulties in fabrication of functional polymeric composites for fiducial markers (FMs) with usage thereof. Therefore, this study exploited for the first time the possibility of enhancing the radiopacity and introduction of the NIR fluorescence of FMs by adsorption of the CAs on hydroxyapatite (HAp) nanoparticles. The particles were embedded in the poly(L-lactide-co-caprolactone) (P[LAcoCL]) matrix resulting in the composite material for bimodal near-infrared fluorescence- and X-ray-based imaging. The applied method of material preparation provided homogenous distribution of both CAs with high iohexol loading efficiency and improved fluorescence signal due to hindered ICG aggregation. The material possessed profound contrasting properties for both imaging modalities. Its stability was evaluated during in vitro experiments in phosphate-buffered saline (PBS) and foetal bovine serum (FBS) solutions. The addition of HAp nanoparticles had significant effect on the fluorescence signal. The X-ray radiopacity was stable within minimum 11 weeks, even though the addition of ICG contributed to a faster release of iohexol. The stiffness of the material was not affected by iohexol or ICG, but incorporation of HAp nanoparticles elevated the values of bending modulus by approximately 70%. Moreover, the performed cell study revealed that all tested materials were not cytotoxic. Thus, the developed material can be successfully used for fabrication of FMs.
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Affiliation(s)
- Żaneta Górecka
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Warsaw, Poland
| | - Joanna Idaszek
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Marcin Heljak
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Diana C Martinez
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Emilia Choińska
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Zbigniew Kulas
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wroclaw, Poland
| | - Wojciech Święszkowski
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
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2
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Zhao X, Yu J, Liang X, Huang Z, Li J, Peng S. Crystallization behaviors regulations and mechanical performances enhancement approaches of polylactic acid (PLA) biodegradable materials modified by organic nucleating agents. Int J Biol Macromol 2023; 233:123581. [PMID: 36758767 DOI: 10.1016/j.ijbiomac.2023.123581] [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: 11/26/2022] [Revised: 12/20/2022] [Accepted: 02/04/2023] [Indexed: 02/09/2023]
Abstract
Polylactic acid (PLA) has attracted much attention because of its good biocompatibility, biodegradability, and mechanical properties. However, the slow crystallization rate of PLA during molding leads to its poor heat resistance, which limit its diffusion for many industrial applications. In this review, the relationship between PLA crystallization and its molecular structure and processing conditions is summarized. From the perspective of the regulation of PLA crystallization by organic nucleating agents, the research progress of organic micromolecule (e.g., esters, amides, and hydrazides), organic salt, supramolecular, and macromolecule nucleating agents on the crystallization behavior of PLA is mainly introduced. The nucleation mechanism of PLA is expounded by organic nucleating agents, and the effect of the interaction force between organic nucleating agents and PLA molecular chains on the crystallization behavior of PLA is analyzed. The effects of the crystallization behavior of PLA on its mechanical properties and heat resistance are discussed. It will provide a theoretical reference for the development and application of high-efficiency nucleating agents.
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Affiliation(s)
- Xipo Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Xiangyang 441000, China.
| | - Jiajie Yu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Xinyu Liang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Zepeng Huang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Juncheng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Shaoxian Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Xiangyang 441000, China
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3
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Górecka Ż, Choińska E, Heljak M, Święszkowski W. Long-Term In Vitro Assessment of Biodegradable Radiopaque Composites for Fiducial Marker Fabrication. Int J Mol Sci 2022; 23:ijms232214363. [PMID: 36430842 PMCID: PMC9697335 DOI: 10.3390/ijms232214363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/04/2022] [Accepted: 11/05/2022] [Indexed: 11/22/2022] Open
Abstract
Biodegradable polymer-based composite materials may be successfully utilised to fabricate fiducial markers (FMs), which are intended to precisely label tumour margins during image-guided surgery or radiotherapy. However, due to matrix degradability, the stability of the functional properties of FMs depends on the chosen polymer. Thus, this study aimed to investigate novel radiopaque composites which varied in the polymeric matrix-polycaprolactone (PCL), poly(L-lactide-co-caprolactone) (P[LAcoCL]) with two molar ratios (70:30 and 85:15), and poly(L-lactide-co-glycolide) (with molar ratio 82:18). The radiopaque component of the materials was a mixture of barium sulphate and hydroxyapatite. The changes in water contact angle, stiffness, and radiopacity occurring during the 24-week-long degradation experiment were examined for the first time. This study comprehensively analyses the microstructural causes of composites behaviour within degradation experiments using thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), gel permitted chromatography (GPC), and scanning electron microscopy (SEM). The obtained results suggest that the utilized biodegradable matrix plays an essential role in radiopaque composite properties and stability thereof. This long-term in vitro assessment enabled a comparison of the materials and aided in choosing the most favourable composite for FMs' fabrication.
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Affiliation(s)
- Żaneta Górecka
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 19 Poleczki Str., 02-882 Warsaw, Poland
| | - Emilia Choińska
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Marcin Heljak
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Wojciech Święszkowski
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 19 Poleczki Str., 02-882 Warsaw, Poland
- Correspondence:
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Zhao X, Liu J, Li J, Liang X, Zhou W, Peng S. Strategies and techniques for improving heat resistance and mechanical performances of poly(lactic acid) (PLA) biodegradable materials. Int J Biol Macromol 2022; 218:115-134. [PMID: 35868408 DOI: 10.1016/j.ijbiomac.2022.07.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/05/2022]
Abstract
Poly(lactic acid) (PLA) has attracted much attention as a substitute for petroleum-based plastics, but its low heat resistance limits its application range in packaging fields and disposable products. This paper summarizes the structural factors affecting the heat resistance of PLA and systematically summarizes methods to improve its heat resistance. PLA is a semi-crystalline polymer, and crystallinity, crystal size, and other factors are important factors affecting heat resistance. This paper systematically analyzes the means to control the crystallization behavior of PLA, and summarizes the effects of nucleating agents, cross-linking, grafting, and annealing processes on the crystallization behavior and heat resistance of PLA. The effects of PLA molecular chain cross-linking and grafting on the motility of PLA molecular chains and the heat resistance of PLA materials are further discussed from the perspective of PLA molecular chain segment movement. The research work on combining PLA with reinforcements such as high heat-resistant polymer materials, fiber, and nanoparticles to improve the mechanical properties and heat resistance of PLA by introducing rigid groups or structures is described in detail. Improving the heat resistance of PLA material is an important strategy to promote the application of biodegradable materials, and has broad research value and application prospects.
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Affiliation(s)
- Xipo Zhao
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Xiangyang 441000, China.
| | - Jinchao Liu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Juncheng Li
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Xinyu Liang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China
| | - Weiyi Zhou
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Xiangyang 441000, China
| | - Shaoxian Peng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry, New Materials and Green Manufacturing Talent Introduction and Innovation Demonstration Base, Hubei University of Technology, Wuhan 430068, China; Hubei Longzhong Laboratory, Xiangyang 441000, China.
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Pineda JR, Polo Y, Pardo-Rodríguez B, Luzuriaga J, Uribe-Etxebarria V, García-Gallastegui P, Sarasua JR, Larrañaga A, Ibarretxe G. In vitro preparation of human Dental Pulp Stem Cell grafts with biodegradable polymer scaffolds for nerve tissue engineering. Methods Cell Biol 2022; 170:147-167. [PMID: 35811097 DOI: 10.1016/bs.mcb.2022.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Human Dental Pulp Stem Cells (hDPSCs) are one of the most promising stem cell sources for tissue engineering and regeneration, due to their extraordinary multi-lineage differentiation ability, ease of extraction from biological waste in dental clinics, safe non-tumorigenic phenotype, immune-tolerance upon in vivo transplantation, and great possibilities of application in autologous tissue reconstruction. The in vitro manipulation of hDPSCs paves the way for drug screening and tailor-made regeneration of damaged tissues, in the context of personalized medicine. The neural crest phenotype of these stem cells gives them the capacity to differentiate to a large variety of cell types, including neural-lineage cells. In this chapter, we describe various culture methods to generate different cellular phenotypes from hDPSCs, which can not only grow as mesenchymal-like plastic adherent cells, but also as non-adherent neurogenic dentospheres in serum-free medium. Floating dentospheres can be used to generate large populations of mature neuronal and glial marker expressing cells, which may be cultured over a substrate of nanopatterned scaffold based on biodegradable poly(lactide-co-caprolactone) (PLCL) to induce a controlled alignment of neurites and cell migration, to generate in vivo biocompatible constructs for nerve tissue bioengineering.
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Affiliation(s)
- Jose Ramon Pineda
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience Fundazioa, Leioa, Spain.
| | - Yurena Polo
- Polimerbio SL, Donostia-San Sebastián, Spain; Group of Science and Engineering of Polymeric Biomaterials (ZIBIO Group), Department of Mining, Metallurgy Engineering and Materials Science, POLYMAT, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Beatriz Pardo-Rodríguez
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jon Luzuriaga
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Verónica Uribe-Etxebarria
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Patricia García-Gallastegui
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José Ramón Sarasua
- Polimerbio SL, Donostia-San Sebastián, Spain; Group of Science and Engineering of Polymeric Biomaterials (ZIBIO Group), Department of Mining, Metallurgy Engineering and Materials Science, POLYMAT, University of the Basque Country (UPV/EHU), Bilbao, Spain.
| | - Aitor Larrañaga
- Group of Science and Engineering of Polymeric Biomaterials (ZIBIO Group), Department of Mining, Metallurgy Engineering and Materials Science, POLYMAT, University of the Basque Country (UPV/EHU), Bilbao, Spain.
| | - Gaskon Ibarretxe
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain.
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Górecka Ż, Grzelecki D, Paskal W, Choińska E, Gilewicz J, Wrzesień R, Macherzyński W, Tracz M, Budzińska-Wrzesień E, Bedyńska M, Kopka M, Jackowska-Tracz A, Świątek-Najwer E, Włodarski PK, Jaworowski J, Święszkowski W. Biodegradable Fiducial Markers for Bimodal Near-Infrared Fluorescence- and X-ray-Based Imaging. ACS Biomater Sci Eng 2022; 8:859-870. [PMID: 35020357 DOI: 10.1021/acsbiomaterials.1c01259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This study aimed to evaluate, for the first time, implantable, biodegradable fiducial markers (FMs), which were designed for bimodal, near-infrared fluorescence-based (NIRF) and X-ray-based imaging. The developed FMs had poly(l-lactide-co-caprolactone)-based core-shell structures made of radiopaque (core) and fluorescent (shell) composites with a poly(l-lactide-co-caprolactone) matrix. The approved for human use contrast agents were utilized as fillers. Indocyanine green was applied to the shell material, whereas in the core materials, iohexol and barium sulfate were compared. Moreover, the possibility of tailoring the stability of the properties of the core materials by the addition of hydroxyapatite (HAp) was examined. The performed in situ (porcine tissue) and in vivo experiment (rat model) confirmed that the developed FMs possessed pronounced contrasting properties in NIRF and X-ray imaging. The presence of HAp improved the radiopacity of FMs at the initial state. It was also proved that, in iohexol-containing FMs, the presence of HAp slightly decreased the stability of contrasting properties, while in BaSO4-containing ones, changes were less pronounced. A comprehensive material analysis explaining the differences in the stability of the contrasting properties was also presented. The tissue response around the FMs with composite cores was comparable to that of the FMs with a pristine polymeric core. The developed composite FMs did not cause serious adverse effects on the surrounding tissues even when irradiated in vivo. The developed FMs ensured good visibility for NIRF image-supported tumor surgery and the following X-ray image-guided radiotherapy. Moreover, this study replenishes a scanty report regarding similar biodegradable composite materials with a high potential for application.
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Affiliation(s)
- Żaneta Górecka
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland.,Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, 02-822 Warsaw, Poland
| | - Dariusz Grzelecki
- Department of Applied Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland.,Department of Orthopedics and Rheumoorthopedics, Professor Adam Gruca Teaching Hospital, Centre of Postgraduate Medical Education, 05-400 Otwock, Poland
| | - Wiktor Paskal
- Centre for Preclinical Research, The Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Emilia Choińska
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
| | - Joanna Gilewicz
- Department of Applied Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Robert Wrzesień
- Central Laboratory of Experimental Animal, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Wojciech Macherzyński
- Faculty of Microsystem Electronics and Photonics, Wroclaw University of Science and Technology, 50-372 Wroclaw, Poland
| | - Michał Tracz
- Institute of Veterinary Medicine, Department of Food Hygiene and Public Health Protection, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | | | - Maria Bedyńska
- Department of Applied Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Michał Kopka
- Centre for Preclinical Research, The Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Agnieszka Jackowska-Tracz
- Institute of Veterinary Medicine, Department of Food Hygiene and Public Health Protection, Warsaw University of Life Sciences, 02-776 Warsaw, Poland
| | - Ewelina Świątek-Najwer
- Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, 50-371 Wroclaw, Poland
| | - Paweł K Włodarski
- Centre for Preclinical Research, The Department of Methodology, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Janusz Jaworowski
- Department of Applied Pharmacy, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Wojciech Święszkowski
- Division of Materials Design, Faculty of Materials Science and Engineering, Warsaw University of Technology, 141 Woloska Str., 02-507 Warsaw, Poland
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Polo Y, Luzuriaga J, Iturri J, Irastorza I, Toca-Herrera JL, Ibarretxe G, Unda F, Sarasua JR, Pineda JR, Larrañaga A. Nanostructured scaffolds based on bioresorbable polymers and graphene oxide induce the aligned migration and accelerate the neuronal differentiation of neural stem cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2020; 31:102314. [PMID: 33059092 DOI: 10.1016/j.nano.2020.102314] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/17/2020] [Accepted: 09/24/2020] [Indexed: 12/30/2022]
Abstract
Within the field of neural tissue engineering, there is a huge need for the development of materials that promote the adhesion, aligned migration and differentiation of stem cells into neuronal and supportive glial cells. In this study, we have fabricated bioresorbable elastomeric scaffolds combining an ordered nanopatterned topography together with a surface functionalization with graphene oxide (GO) in mild conditions. These scaffolds allowed the attachment of murine neural stem cells (NSCs) without the need of any further coating of its surface with extracellular matrix adhesion proteins. The NSCs were able to give rise to both immature neurons and supporting glial cells over the nanostructured scaffolds in vitro, promoting their aligned migration in cell clusters following the nanostructured grooves. This system has the potential to reestablish spatially oriented neural precursor cell connectivity, constituting a promising tool for future cellular therapy including nerve tissue regeneration.
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Affiliation(s)
- Yurena Polo
- Polimerbio SL, Donostia-San Sebastian, Spain
| | - Jon Luzuriaga
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jagoba Iturri
- Institute for Biophysics, Department of Nanobiotechnology, BOKU University of Natural Resources and Life Sciences, Vienna, Austria
| | - Igor Irastorza
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - José Luis Toca-Herrera
- Institute for Biophysics, Department of Nanobiotechnology, BOKU University of Natural Resources and Life Sciences, Vienna, Austria
| | - Gaskon Ibarretxe
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Fernando Unda
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain
| | - Jose-Ramon Sarasua
- Group of Science and Engineering of Polymeric Biomaterials (ZIBIO Group), Department of Mining, Metallurgy Engineering and Materials Science & POLYMAT, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Jose Ramon Pineda
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country (UPV/EHU), Leioa, Spain; Achucarro Basque Center for Neuroscience, University of the Basque Country (UPV/EHU), Leioa, Spain.
| | - Aitor Larrañaga
- Group of Science and Engineering of Polymeric Biomaterials (ZIBIO Group), Department of Mining, Metallurgy Engineering and Materials Science & POLYMAT, University of the Basque Country (UPV/EHU), Bilbao, Spain.
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Nifant’ev I, Komarov P, Ovchinnikova V, Kiselev A, Minyaev M, Ivchenko P. Comparative Experimental and Theoretical Study of Mg, Al and Zn Aryloxy Complexes in Copolymerization of Cyclic Esters: The Role of the Metal Coordination in Formation of Random Copolymers. Polymers (Basel) 2020; 12:E2273. [PMID: 33023256 PMCID: PMC7600584 DOI: 10.3390/polym12102273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 09/29/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
Homogeneity of copolymers is a general problem of catalytic coordination polymerization. In ring-opening polymerization of cyclic esters, the rational design of the catalyst is generally applied to solve this problem by the equalization of the reactivities of comonomers-however, it often leads to a reduction of catalytic activity. In the present paper, we studied the catalytic behavior of BnOH-activated complexes (ВНТ)Mg(THF)2nBu (1), (ВНТ)2AlMe (2) and [(ВНТ)ZnEt]2 (3), based on 2,6-di-tert-butyl-4-methylphenol (BHT-H) in homo- and copolymerization of L-lactide (lLA) and ε-caprolactone (εCL). Even at 1:5 lLA/εCL ratio Mg complex 1 catalyzed homopolymerization of lLA without involving εCL to the formation of the polymer backbone. On the contrary, Zn complex 3 efficiently catalyzed random lLA/εCL copolymerization; the presence of mono-lactate subunits in the copolymer chain clearly pointed to the transesterification mechanism of copolymer formation. Both epimerization and transesterification side processes were analyzed using the density functional theory (DFT) modeling that confirmed the qualitative difference in catalytic behavior of 1 and 3: Mg and Zn complexes demonstrated different types of preferable coordination on the PLA chain (k2 and k3, respectively) with the result that complex 3 catalyzed controlled εCL ROP/PLA transesterification, providing the formation of lLA/εCL copolymers that contain mono-lactate fragments separated by short oligo(εCL) chains. The best results in the synthesis of random lLA/εCL copolymers were obtained during experiments on transesterification of commercially available PLLA, the applicability of 3/BnOH catalyst in the synthesis of random copolymers of εCL with methyl glycolide, ethyl ethylene phosphonate and ethyl ethylene phosphate was also demonstrated.
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Affiliation(s)
- Ilya Nifant’ev
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1–3, 119991 Moscow, Russia
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- Faculty of Chemistry, National Research University Higher School of Economics, Miasnitskaya Str. 20, 101000 Moscow, Russia
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
| | - Valeriya Ovchinnikova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
| | - Artem Kiselev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- Faculty of Chemistry, National Research University Higher School of Economics, Miasnitskaya Str. 20, 101000 Moscow, Russia
| | - Mikhail Minyaev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
- N.D. Zelinsky Institute of Organic Chemistry RAS, Leninsky pr. 47, 119991 Moscow, Russia
| | - Pavel Ivchenko
- Department of Chemistry, M.V. Lomonosov Moscow State University, Leninskie Gory 1–3, 119991 Moscow, Russia
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, Leninsky Avenue 29, 119991 Moscow, Russia; (P.K.); (V.O.); (A.K.); (M.M.)
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9
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Mendibil X, Ortiz R, Sáenz de Viteri V, Ugartemendia JM, Sarasua JR, Quintana I. High Throughput Manufacturing of Bio-Resorbable Micro-Porous Scaffolds Made of Poly(L-lactide-co-ε-caprolactone) by Micro-Extrusion for Soft Tissue Engineering Applications. Polymers (Basel) 2019; 12:E34. [PMID: 31878300 PMCID: PMC7023538 DOI: 10.3390/polym12010034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/18/2019] [Accepted: 12/22/2019] [Indexed: 11/17/2022] Open
Abstract
Porous scaffolds made of elastomeric materials are of great interest for soft tissue engineering. Poly(L-lactide-co-ε-caprolactone) (PLCL) is a bio-resorbable elastomeric copolymer with tailorable properties, which make this material an appropriate candidate to be used as scaffold for vascular, tendon, and nerve healing applications. Here, extrusion was applied to produce porous scaffolds of PLCL, using NaCl particles as a leachable agent. The effects of the particle proportion and size on leaching performance, dimensional stability, mechanical properties, and ageing of the scaffolds were analyzed. The efficiency of the particle leaching and scaffold swelling when wet were observed to be dependent on the porogenerator proportion, while the secant moduli and ultimate tensile strengths were dependent on the pore size. Porosity, swelling, and mechanical properties of the extruded scaffolds were tailorable, varying with the proportion and size of porogenerator particles and showed similar values to human soft tissues like nerves and veins (E = 7-15 MPa, σu = 7 MPa). Up to 300-mm length micro-porous PLCL tube with 400-µm thickness wall was extruded, proving extrusion as a high-throughput manufacturing process to produce tubular elastomeric bio-resorbable porous scaffolds of unrestricted length with tunable mechanical properties.
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Affiliation(s)
| | - Rocío Ortiz
- IK4-TEKNIKER, C/IñakiGoenaga 5, 20600 Eibar, Spain; (X.M.)
| | | | - Jone M. Ugartemendia
- Department of Mining-Metallurgy Engineering and Materials Science, School of Engineering, University of the Basque Country (EHU-UPV), 48013 Bilbao, Spain (J.-R.S.)
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science, School of Engineering, University of the Basque Country (EHU-UPV), 48013 Bilbao, Spain (J.-R.S.)
| | - Iban Quintana
- IK4-TEKNIKER, C/IñakiGoenaga 5, 20600 Eibar, Spain; (X.M.)
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10
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Larrañaga A, Lizundia E. A review on the thermomechanical properties and biodegradation behaviour of polyesters. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109296] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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11
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Biodegradable implantable balloons: Mechanical stability under physiological conditions. J Mech Behav Biomed Mater 2019; 100:103404. [PMID: 31473436 DOI: 10.1016/j.jmbbm.2019.103404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 08/05/2019] [Accepted: 08/24/2019] [Indexed: 11/23/2022]
Abstract
Rotator cuff tendons injuries occurs as a result of trauma, e.g. due to falling, mechanical injuries and frequent overhead activity and as natural degenerative tears in elderly people. Biodegradable balloon shaped spacer of Poly-(L-lactide-co-ε-caprolactone) (PLCL) are applied in the treatment of these injuries. This type of treatment involves insertion of inflated biodegradable implant into the tissues of the damaged region in the shoulder to avoid shoulder impingement and reduce friction between the acromion and the humeral head and propagation of inflammation. The implant must maintain integrity under significant mechanical loading in order to remain effective. However, with time, the implant is exposed to the risk of failure due to the high pressure caused by the muscular motion and the friction with the bones. We report in this study the limits of the mechanical stability of the PLCL balloon shape spacer (implant) under prolonged cyclic loading, so as to be able to predict their physical stability in vivo. We have demonstrated in an in vitro settings that the implant withstands fatigue cycles for significantly longer than 8 weeks, which provides sufficient time window for patients to perform substantial rehabilitation and recover from an injury. The data presented herein is expected to assist medical practitioners in safety and efficacy measurements and assessment following spacer implantation.
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12
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Ye HM, Chen XT, Li HF, Zhang P, Ma W, Li B, Xu J. Industrializable and sustainable approach for preparing extended-chain crystals of biodegradable poly(butylene succinate) and their applications. POLYMER 2019. [DOI: 10.1016/j.polymer.2018.11.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Duffy P, McMahon S, Wang X, Keaveney S, O'Cearbhaill ED, Quintana I, Rodríguez FJ, Wang W. Synthetic bioresorbable poly-α-hydroxyesters as peripheral nerve guidance conduits; a review of material properties, design strategies and their efficacy to date. Biomater Sci 2019; 7:4912-4943. [DOI: 10.1039/c9bm00246d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Implantable tubular devices known as nerve guidance conduits (NGCs) have drawn considerable interest as an alternative to autografting in the repair of peripheral nerve injuries.
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Affiliation(s)
- Patrick Duffy
- The Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin
- Ireland
| | - Seán McMahon
- Ashland Specialties Ireland Ltd
- Synergy Centre
- Dublin
- Ireland
| | - Xi Wang
- The Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin
- Ireland
| | - Shane Keaveney
- School of Mechanical & Materials Engineering
- UCD Centre for Biomedical Engineering
- UCD Conway Institute of Biomolecular and Biomedical Research
- University College Dublin
- Dublin
| | - Eoin D. O'Cearbhaill
- School of Mechanical & Materials Engineering
- UCD Centre for Biomedical Engineering
- UCD Conway Institute of Biomolecular and Biomedical Research
- University College Dublin
- Dublin
| | - Iban Quintana
- IK4-Tekniker
- Surface Engineering and Materials Science Unit
- Eibar
- Spain
| | | | - Wenxin Wang
- The Charles Institute of Dermatology
- School of Medicine
- University College Dublin
- Dublin
- Ireland
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14
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Fernández J, Ribeiro IA, Martin V, Martija OL, Zuza E, Bettencourt AF, Sarasua JR. Release mechanisms of urinary tract antibiotics when mixed with bioabsorbable polyesters. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:529-538. [DOI: 10.1016/j.msec.2018.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 07/23/2018] [Accepted: 08/05/2018] [Indexed: 01/24/2023]
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15
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Stirling E, Champouret Y, Visseaux M. Catalytic metal-based systems for controlled statistical copolymerisation of lactide with a lactone. Polym Chem 2018. [DOI: 10.1039/c8py00310f] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A comprehensive survey of the recent developments of metal-based catalysts for the ROcoP of lactide with another lactone is presented.
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Affiliation(s)
- E. Stirling
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
| | - Y. Champouret
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
| | - M. Visseaux
- UMR 8181 – UCCS – Unité de Catalyse et de Chimie du Solide
- ENSCL
- Centrale Lille
- Univ. Artois
- Univ. Lille
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16
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Monomer sequence in PLGA microparticles: Effects on acidic microclimates and in vivo inflammatory response. Acta Biomater 2018; 65:259-271. [PMID: 29101019 DOI: 10.1016/j.actbio.2017.10.043] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/24/2017] [Accepted: 10/30/2017] [Indexed: 01/12/2023]
Abstract
Controlling the backbone architecture of poly(lactic-co-glycolic acid)s (PLGAs) is demonstrated to have a strong influence on the production and release of acidic degradation by-products in microparticle matrices. Previous efforts for controlling the internal and external accumulation of acidity for PLGA microparticles have focused on the addition of excipients including neutralization and anti-inflammatory agents. In this report, we utilize a sequence-control strategy to tailor the microstructure of PLGA. The internal acidic microclimate distributions within sequence-defined and random PLGA microparticles were monitored in vitro using a non-invasive ratiometric two-photon microscopy (TPM) methodology. Sequence-defined PLGAs were found to have minimal changes in pH distribution and lower amounts of percolating acidic by-products. A parallel scanning electron microscopy study further linked external morphological events to internal degradation-induced structural changes. The properties of the sequenced and random copolymers characterized in vitro translated to differences in in vivo behavior. The sequence alternating copolymer, poly LG, had lower granulomatous foreign-body reactions compared to random racemic PLGA with a 50:50 ratio of lactic to glycolic acid. STATEMENT OF SIGNIFICANCE This paper demonstrates that changing the monomer sequence in poly(lactic-co-glycolic acid)s (PLGAs) leads to dramatic differences in the rate of degradation and the internal acidic microclimate of microparticles degrading in vitro. We note that the acidic microclimates within these particles were imaged for the first time with two-photon microscopy, which gives an extremely clear and detailed picture of the degradation process. Importantly, we also document that the observed sequence-controlled in vitro processes translate into differences in the in vivo behavior of polymers which have the same L to G composition but differing microstructures. These data, placed in the context of our prior studies on swelling, erosion, and MW loss (Biomaterials2017, 117, 66 and other references cited within the manuscript), provide significant insight not only about sequence effects in PLGAs but into the underlying mechanisms of PLGA degradation in general.
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17
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Granados-Hernández MV, Serrano-Bello J, Montesinos JJ, Alvarez-Gayosso C, Medina-Velázquez LA, Alvarez-Fregoso O, Alvarez-Perez MA. In vitro and in vivo biological characterization of poly(lactic acid) fiber scaffolds synthesized by air jet spinning. J Biomed Mater Res B Appl Biomater 2017; 106:2435-2446. [PMID: 29193687 DOI: 10.1002/jbm.b.34053] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 11/03/2017] [Accepted: 11/12/2017] [Indexed: 12/14/2022]
Abstract
Poly(lactic acid) (PLA) is one of the most promising renewable and biodegradable polymers for mimic extracellular matrix for tissue engineering applications. In this work, PLA spun membrane scaffold were successfully prepared by air jet spinning technology. Morphology, mechanical properties, in vitro biocompatibility, and in vitro and in vivo degradation of PLA fibrous scaffold were characterized by X-ray diffraction, Fourier Transform Infrared, and scanning electron microscope (SEM). Morphological results assessed by SEM analyses indicated that PLA scaffolds possessed an average fiber diameter of approximately 0.558 ± 0.141 µm for 7% w/v of PLA and approximately 0.647 ± 0.137 µm for 10% w/v. Interestingly, our results showed that the nanofiber size of PLA scaffold allow structural stability after 100 days of in vitro degradation in Ringer solution where the average fiber diameter were of approximately 0.633 ± 0.147 µm for 7% w/v and approximately 0.645 ± 0.140 µm for 10% w/v of PLA. Mechanical properties of PLA fibers scaffold after in vitro degradation showed decrease in terms of flexibility elongation, and less energy was needed to achieve maximal elastic deformation. The fiber size exerts an influence on the biological response of human Bone Marrow Mesenchymal Stromal Cells as confirmed by MTT assay after 9 days of cell culture and the in vivo degradation assay of 7% w/v and 10% w/v of PLA scaffold, did not demonstrate evidence of toxicity with a mild inflammatory respond. In conclusion, airbrushing technology promises to be a viable and attractive alternative technique for producing a biocompatible PLA nanofiber scaffold that could be considered for tissue engineering regeneration. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2435-2446, 2018.
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Affiliation(s)
- Marco Vladimir Granados-Hernández
- Laboratorio de Bioingeniería de Tejidos; DEPeI, Facultad de Odontología, UNAM. Circuito Exterior s/n. Cd. Universitaria, 04510 Coyoacán, CDMX, México.,Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México; Av. Ciudad Universitaria 3000, C.P. 04360, Coyoacán, CDMX, México
| | - Janeth Serrano-Bello
- Laboratorio de Bioingeniería de Tejidos; DEPeI, Facultad de Odontología, UNAM. Circuito Exterior s/n. Cd. Universitaria, 04510 Coyoacán, CDMX, México
| | - Juan José Montesinos
- Mesenchymal Stem Cells Laboratory, Oncology Research Unit, Oncology Hospital, National Medical Center, IMSS, Mexico City, México
| | - Carlos Alvarez-Gayosso
- Laboratorio de Materiales Dentales; DEPeI, Facultad de Odontología, UNAM. Circuito Exterior s/n. Cd. Universitaria, 04510 Coyoacán, CDMX, México
| | - Luis Alberto Medina-Velázquez
- Instituto de Física, Universidad Nacional Autónoma de México, CDMX, 04510, México.,Unidad de Investigación Biomédica en Cáncer INCan/UNAM, Instituto Nacional de Cancerología, CDMX, 14080, México
| | - Octavio Alvarez-Fregoso
- Instituto de Investigaciones en Materiales, Circuito Exterior s/n. Cd. Universitaria, 04510 Coyoacán, CDMX, México
| | - Marco Antonio Alvarez-Perez
- Laboratorio de Bioingeniería de Tejidos; DEPeI, Facultad de Odontología, UNAM. Circuito Exterior s/n. Cd. Universitaria, 04510 Coyoacán, CDMX, México
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18
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Osorio Meléndez D, Castro-Osma JA, Lara-Sánchez A, Rojas RS, Otero A. Ring-opening polymerization and copolymerization of cyclic esters catalyzed by amidinate aluminum complexes. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28629] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Danay Osorio Meléndez
- Nucleus Millennium Chemical Processes and Catalysis (CPC); Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile; Santiago Chile
| | - José A. Castro-Osma
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Farmacia; Albacete 02071 Spain
| | - Agustín Lara-Sánchez
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas; Ciudad Real 13071 Spain
| | - René S. Rojas
- Nucleus Millennium Chemical Processes and Catalysis (CPC); Laboratorio de Química Inorgánica, Facultad de Química, Pontificia Universidad Católica de Chile; Santiago Chile
| | - Antonio Otero
- Universidad de Castilla-La Mancha; Departamento de Química Inorgánica, Orgánica y Bioquímica-Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias y Tecnologías Químicas; Ciudad Real 13071 Spain
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19
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Ethylene brassylate: Searching for new comonomers that enhance the ductility and biodegradability of polylactides. Polym Degrad Stab 2017. [DOI: 10.1016/j.polymdegradstab.2017.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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21
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Yang K, Ling C, Yuan T, Zhu Y, Cheng Y, Cui W. Polymeric Biodegradable Stent Insertion in the Esophagus. Polymers (Basel) 2016; 8:E158. [PMID: 30979258 PMCID: PMC6432023 DOI: 10.3390/polym8050158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/03/2016] [Accepted: 04/08/2016] [Indexed: 12/11/2022] Open
Abstract
Esophageal stent insertion has been used as a well-accepted and effective alternative to manage and improve the quality of life for patients diagnosed with esophageal diseases and disorders. Current stents are either permanent or temporary and are fabricated from either metal or plastic. The partially covered self-expanding metal stent (SEMS) has a firm anchoring effect and prevent stent migration, however, the hyperplastic tissue reaction cause stent restenosis and make it difficult to remove. A fully covered SEMS and self-expanding plastic stent (SEPS) reduced reactive hyperplasia but has a high migration rate. The main advantage that polymeric biodegradable stents (BDSs) have over metal or plastic stents is that removal is not require and reduce the need for repeated stent insertion. But the slightly lower radial force of BDS may be its main shortcoming and a post-implant problem. Thus, strengthening support of BDS is a content of the research in the future. BDSs are often temporarily effective in esophageal stricture to relieve dysphagia. In the future, it can be expect that biodegradable drug-eluting stents (DES) will be available to treat benign esophageal stricture, perforations or leaks with additional use as palliative modalities for treating malignant esophageal stricture, as the bridge to surgery or to maintain luminal patency during neoadjuvant chemoradiation.
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Affiliation(s)
- Kai Yang
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, 600 Yi Shan Road, Shanghai 200233, China.
| | - Christopher Ling
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Road, Suzhou 215006, China.
- Nanotechnology Engineering, University of Waterloo, 200 University Ave W, Waterloo, ON N2L 3G1, Canada.
| | - Tianwen Yuan
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, 600 Yi Shan Road, Shanghai 200233, China.
| | - Yueqi Zhu
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, 600 Yi Shan Road, Shanghai 200233, China.
| | - Yingsheng Cheng
- Department of Radiology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, 600 Yi Shan Road, Shanghai 200233, China.
| | - Wenguo Cui
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Road, Suzhou 215006, China.
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22
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Fernández J, Etxeberria A, Sarasua JR. Synthesis and properties of ω-pentadecalactone-co-δ-hexalactone copolymers: a biodegradable thermoplastic elastomer as an alternative to poly(ε-caprolactone). RSC Adv 2016. [DOI: 10.1039/c5ra23404b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The copolymerization of ω-pentadecalactone with δ-hexalactone creates a new kind of low glass transition polyester that shows improved biodegradability and flexibility in comparison to poly(ε-caprolactone) (PCL).
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Affiliation(s)
- Jorge Fernández
- Department of Mining-Metallurgy Engineering and Materials Science
- POLYMAT
- University of the Basque Country (UPV/EHU)
- School of Engineering
- 48013 Bilbao
| | - Agustin Etxeberria
- Department of Polymer Science and Technology
- POLYMAT
- University of the Basque Country (UPV/EHU)
- 20018 Donostia-San Sebastian
- Spain
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science
- POLYMAT
- University of the Basque Country (UPV/EHU)
- School of Engineering
- 48013 Bilbao
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23
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Fernández J, Etxeberria A, Sarasua JR. In vitro degradation studies and mechanical behavior of poly(ε-caprolactone-co-δ-valerolactone) and poly(ε-caprolactone-co-L-lactide) with random and semi-alternating chain microstructures. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.09.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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24
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Su F, Shen X, Hu Y, Darcos V, Li S. Biocompatibility of thermo-responsive PNIPAAm-PLLA-PNIPAAm triblock copolymer as potential drug carrier. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3582] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Feng Su
- College of Chemical Engineering; Qingdao University of Science and Technology; 53 Zhengzhou Road Qingdao 266042 China
| | - Xin Shen
- College of Chemical Engineering; Qingdao University of Science and Technology; 53 Zhengzhou Road Qingdao 266042 China
| | - Yanfei Hu
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247 - Equipe Biopolymères Artificiels; Université de Montpellier; Montpellier 34093 France
| | - Vincent Darcos
- Institut des Biomolécules Max Mousseron, UMR CNRS 5247 - Equipe Biopolymères Artificiels; Université de Montpellier; Montpellier 34093 France
| | - Suming Li
- Institut Européen des Membranes, UMR CNRS 5635; Université de Montpellier; Montpellier 34095 France
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25
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Fernández J, Etxeberria A, Sarasua J. In vitro degradation of poly(lactide/δ-valerolactone) copolymers. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2014.12.019] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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26
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Larrañaga A, Ramos D, Amestoy H, Zuza E, Sarasua JR. Coating of bioactive glass particles with mussel-inspired polydopamine as a strategy to improve the thermal stability of poly(l-lactide)/bioactive glass composites. RSC Adv 2015. [DOI: 10.1039/c5ra09495j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Coating bioactive glass particles with polydopamine hinders the degradation reaction occurring at high temperatures between PLLA and bioactive glass particles.
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Affiliation(s)
- Aitor Larrañaga
- University of the Basque Country (UPV/EHU)
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT
- School of Engineering
- 480130 Bilbao
- Spain
| | - Daniel Ramos
- University of the Basque Country (UPV/EHU)
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT
- School of Engineering
- 480130 Bilbao
- Spain
| | - Hegoi Amestoy
- University of the Basque Country (UPV/EHU)
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT
- School of Engineering
- 480130 Bilbao
- Spain
| | - Ester Zuza
- University of the Basque Country (UPV/EHU)
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT
- School of Engineering
- 480130 Bilbao
- Spain
| | - Jose-Ramon Sarasua
- University of the Basque Country (UPV/EHU)
- Department of Mining-Metallurgy Engineering and Materials Science & POLYMAT
- School of Engineering
- 480130 Bilbao
- Spain
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27
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Niu Y, Guo L, Liu J, Shen H, Su J, An X, Yu B, Wei J, Shin JW, Guo H, Ji F, He D. Bioactive and degradable scaffolds of the mesoporous bioglass and poly(l-lactide) composite for bone tissue regeneration. J Mater Chem B 2015; 3:2962-2970. [PMID: 32262496 DOI: 10.1039/c4tb01796j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bioactive scaffolds of the m-BG–PLLA composite with excellent biocompatibility, degradability and osteogenesis, which could be promising implants for bone regeneration.
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28
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Hydrolytic degradation and bioactivity of lactide and caprolactone based sponge-like scaffolds loaded with bioactive glass particles. Polym Degrad Stab 2014. [DOI: 10.1016/j.polymdegradstab.2014.08.021] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Fernández J, Larrañaga A, Etxeberria A, Sarasua J. Tensile behavior and dynamic mechanical analysis of novel poly(lactide/δ-valerolactone) statistical copolymers. J Mech Behav Biomed Mater 2014; 35:39-50. [DOI: 10.1016/j.jmbbm.2014.03.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2014] [Revised: 03/17/2014] [Accepted: 03/21/2014] [Indexed: 12/15/2022]
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30
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Larrañaga A, Guay-Bégin AA, Chevallier P, Sabbatier G, Fernández J, Laroche G, Sarasua JR. Grafting of a model protein on lactide and caprolactone based biodegradable films for biomedical applications. BIOMATTER 2014; 4:e27979. [PMID: 24509417 PMCID: PMC4014455 DOI: 10.4161/biom.27979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Thermoplastic biodegradable polymers displaying elastomeric behavior and mechanical consistency are greatly appreciated for the regeneration of soft tissues and for various medical devices. However, while the selection of a suitable base material is determined by mechanical and biodegradation considerations, it is the surface properties of the biomaterial that are responsible for the biological response. In order to improve the interaction with cells and modulate their behavior, biologically active molecules can be incorporated onto the surface of the material. With this aim, the surface of a lactide and caprolactone based biodegradable elastomeric terpolymer was modified in two stages. First, the biodegradable polymer surface was aminated by atmospheric pressure plasma treatment and second a crosslinker was grafted in order to covalently bind the biomolecule. In this study, albumin was used as a model protein. According to X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM), albumin was efficiently immobilized on the surface of the terpolymer, the degree of albumin surface coverage (ΓBSA) reached ~35%. Moreover, gel permeation chromatography (GPC) studies showed that the hydrolytic degradation kinetic of the synthesized polymer was slightly delayed when albumin was grafted. However, the degradation process in the bulk of the material was unaffected, as demonstrated by Fourier transform infrared (FTIR) analyses. Furthermore, XPS analyses showed that the protein was still present on the surface after 28 days of degradation, meaning that the surface modification was stable, and that there had been enough time for the biological environment to interact with the modified material.
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Affiliation(s)
- Aitor Larrañaga
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain; Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada
| | - Andrée-Anne Guay-Bégin
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain; Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada
| | - Pascale Chevallier
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Gad Sabbatier
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Jorge Fernández
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface (LIS); Centre de recherche du CHU de Québec; Hôpital Saint-François d'Assise; Québec, QC Canada; Département de génie des mines, de la métallurgie et des matériaux; Centre de Recherche sur les Matériaux Avancés (CERMA); Université Laval; Québec, QC Canada
| | - Jose-Ramon Sarasua
- Department of Mining-Metallurgy Engineering and Materials Science; POLYMAT; University of the Basque Country (UPV/EHU); School of Engineering; Bilbao, Spain
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