1
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Nayak VV, Sanjairaj V, Behera RK, Smay JE, Gupta N, Coelho PG, Witek L. Direct inkjet writing of polylactic acid/β-tricalcium phosphate composites for bone tissue regeneration: A proof-of-concept study. J Biomed Mater Res B Appl Biomater 2024; 112:e35402. [PMID: 38520704 PMCID: PMC11003728 DOI: 10.1002/jbm.b.35402] [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: 11/27/2023] [Revised: 02/20/2024] [Accepted: 03/04/2024] [Indexed: 03/25/2024]
Abstract
There is an ever-evolving need of customized, anatomic-specific grafting materials for bone regeneration. More specifically, biocompatible and osteoconductive materials, that may be configured dynamically to fit and fill defects, through the application of an external stimulus. The objective of this study was to establish a basis for the development of direct inkjet writing (DIW)-based shape memory polymer-ceramic composites for bone tissue regeneration applications and to establish material behavior under thermomechanical loading. Polymer-ceramic (polylactic acid [PLA]/β-tricalcium phosphate [β-TCP]) colloidal gels were prepared of different w/w ratios (90/10, 80/20, 70/30, 60/40, and 50/50) through polymer dissolution in acetone (15% w/v). Cytocompatibility was analyzed through Presto Blue assays. Rheological properties of the colloidal gels were measured to determine shear-thinning capabilities. Gels were then extruded through a custom-built DIW printer. Space filling constructs of the gels were printed and subjected to thermomechanical characterization to measure shape fixity (Rf) and shape recovery (Rr) ratios through five successive shape memory cycles. The polymer-ceramic composite gels exhibited shear-thinning capabilities for extrusion through a nozzle for DIW. A significant increase in cellular viability was observed with the addition of β-TCP particles within the polymer matrix relative to pure PLA. Shape memory effect in the printed constructs was repeatable up to 4 cycles followed by permanent deformation. While further research on scaffold macro-/micro-geometries, and engineered porosities are warranted, this proof-of-concept study suggested suitability of this polymer-ceramic material and the DIW 3D printing workflow for the production of customized, patient specific constructs for bone tissue engineering.
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Affiliation(s)
- Vasudev Vivekanand Nayak
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | | | - Rakesh Kumar Behera
- Department of Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
| | - James E. Smay
- School of Materials Science and Engineering, Oklahoma State University, Tulsa, OK 74106, USA
| | - Nikhil Gupta
- Department of Mechanical and Aerospace Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
| | - Paulo G. Coelho
- Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- DeWitt Daughtry Family Department of Surgery, Division of Plastic Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Lukasz Witek
- Biomaterials Division, NYU College of Dentistry, New York, NY 10010, USA
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY 11201, USA
- Hansjörg Wyss Department of Plastic Surgery, NYU Grossman School of Medicine, New York University, New York, NY 10017, USA
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Larrañaga X, Sarasua JR, Zuza E. Role of Inorganic Fillers on the Physical Aging and Toughness Loss of PLLA/BaSO 4 Composites. ACS APPLIED POLYMER MATERIALS 2023; 5:9620-9631. [PMID: 38021210 PMCID: PMC10653123 DOI: 10.1021/acsapm.3c02112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023]
Abstract
The addition of inorganic fillers has been reported to increase the toughness of poly(l-lactide) (PLLA), but the effect of physical aging in such composites has been neglected. The present work discusses the effect of the still ongoing segmental relaxation in PLLA-based composites filled with BaSO4 inorganic particles in regard of the filler quantity. By means of differential scanning calorimetry, X-ray diffraction, and tensile testing of progressively aged PLLA filled with particles ranging from 0.5-10 wt %, we observed an increase in the mechanical energy required to activate the plastic flow of the primary structure in the PLLA matrix, which resulted in the embrittlement of the majority of composites upon enough aging. Results further clarify the role of debonding in the activation process of PLLA, and the behavior of the composite is described at the segmental level. Only an addition of 10% of particles has effectively preserved a ductile behavior of the samples beyond 150 aging days; therefore, we strongly remark the significance of studying the effect of physical aging in such composites.
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Affiliation(s)
- Xabier Larrañaga
- Department of Mining-Metallurgy
Engineering and Materials Science & POLYMAT, Faculty of Engineering, University
of the Basque Country (UPV/EHU), Alameda de Urquijo s/n, Bilbao 48013, Spain
| | - Jose R. Sarasua
- Department of Mining-Metallurgy
Engineering and Materials Science & POLYMAT, Faculty of Engineering, University
of the Basque Country (UPV/EHU), Alameda de Urquijo s/n, Bilbao 48013, Spain
| | - Ester Zuza
- Department of Mining-Metallurgy
Engineering and Materials Science & POLYMAT, Faculty of Engineering, University
of the Basque Country (UPV/EHU), Alameda de Urquijo s/n, Bilbao 48013, Spain
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3
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Mocanu AC, Miculescu F, Dascălu CA, Voicu ȘI, Pandele MA, Ciocoiu RC, Batalu D, Dondea S, Mitran V, Ciocan LT. Influence of Ceramic Particles Size and Ratio on Surface-Volume Features of the Naturally Derived HA-Reinforced Filaments for Biomedical Applications. J Funct Biomater 2022; 13:199. [PMID: 36278668 PMCID: PMC9590078 DOI: 10.3390/jfb13040199] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/18/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
The intersection of the bone tissue reconstruction and additive manufacturing fields promoted the advancement to a prerequisite and new feedstock resource for high-performance bone-like-scaffolds manufacturing. In this paper, the proposed strategy was directed toward the use of bovine-bone-derived hydroxyapatite (HA) for surface properties enhancement and mechanical features reinforcement of the poly(lactic acid) matrix for composite filaments extrusion. The involvement of completely naturally derived materials in the technological process was based on factors such as sustainability, low cost, and a facile and green synthesis route. After the HA isolation and extraction from bovine bones by thermal processing, milling, and sorting, two dependent parameters—the HA particles size (<40 μm, <100 μm, and >125 μm) and ratio (0−50% with increments of 10%)—were simultaneously modulated for the first time during the incorporation into the polymeric matrix. The resulting melt mixtures were divided for cast pellets and extruded filaments development. Based on the obtained samples, the study was further designed to examine several key features by complementary surface−volume characterization techniques. Hence, the scanning electron microscopy and micro-CT results for all specimens revealed a uniform and homogenous dispersion of HA particles and an adequate adhesion at the ceramic/polymer interface, without outline pores, sustained by the shape and surface features of the synthesized ceramic particles. Moreover, an enhanced wettability (contact angle in the ~70−21° range) and gradual mechanical takeover were indicated once the HA ratio increased, independent of the particles size, which confirmed the benefits and feasibility of evenly blending the natural ceramic/polymeric components. The results correlation led to the selection of optimal technological parameters for the synthesis of adequate composite filaments destined for future additive manufacturing and biomedical applications.
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Affiliation(s)
- Aura-Cătălina Mocanu
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Florin Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Cătălina-Andreea Dascălu
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Ștefan Ioan Voicu
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania
| | - Mădălina-Andreea Pandele
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Str., 011061 Bucharest, Romania
| | - Robert-Cătălin Ciocoiu
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Dan Batalu
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Sorina Dondea
- Department of Metallic Materials Science, Physical Metallurgy, Faculty of Materials Science and Engineering, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Spl. Independentei, 050095 Bucharest, Romania
| | - Lucian-Toma Ciocan
- Prosthetics Technology and Dental Materials Department, “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu Street., 020022 Bucharest, Romania
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4
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Song X, Guan W, Qin H, Han X, Wu L, Ye Y. Properties of poly(lactic acid)/walnut shell/hydroxyapatite composites prepared with fused deposition modeling. Sci Rep 2022; 12:11563. [PMID: 35798811 PMCID: PMC9262983 DOI: 10.1038/s41598-022-15622-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 06/27/2022] [Indexed: 11/08/2022] Open
Abstract
In this work, fused deposition modeling (FDM) technology was used to prepare poly(lactic acid)/walnut shell/hydroxyapatite (PLA/WS/HA) composite filaments. HA was treated with silane and characterized by Fourier transform infrared spectroscopy (FTIR). The composites were investigated by using simultaneous thermal analyzer, scanning electron microscopy (SEM) and a universal mechanical testing machine. The results showed that incorporating either HA or WS improved the thermal stability and water absorption of PLA, but lowered the tensile and compression strength. Fillers toughened the PLA matrix, resulting in higher tensile elongation and compressive strain. The tensile and compressive strengths of samples significantly dropped after water-immersion for 6 weeks. Finally, scaffolds were manufactured by using FDM. The compression modulus and structural feature of scaffolds indicated that the PLA/WS/HA composites have the potential to be applied in structural parts, such as bone implants.
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Affiliation(s)
- Xiaohui Song
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China.
| | - Wenfang Guan
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China
| | - Huadong Qin
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China
| | - Xingguo Han
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China
| | - Lingfang Wu
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China
| | - Yishen Ye
- School of Electromechanical Engineering, Guilin University of Aerospace Technology, Guilin, China
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5
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Sinha R, Sanchez A, Camara-Torres M, Uriszar-Aldaca IC, Calore AR, Harings J, Gambardella A, Ciccarelli L, Vanzanella V, Sisani M, Scatto M, Wendelbo R, Perez S, Villanueva S, Matanza A, Patelli A, Grizzuti N, Mota C, Moroni L. Additive Manufactured Scaffolds for Bone Tissue Engineering: Physical Characterization of Thermoplastic Composites with Functional Fillers. ACS APPLIED POLYMER MATERIALS 2021; 3:3788-3799. [PMID: 34476399 PMCID: PMC8397295 DOI: 10.1021/acsapm.1c00363] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 07/20/2021] [Indexed: 05/09/2023]
Abstract
Thermoplastic polymer-filler composites are excellent materials for bone tissue engineering (TE) scaffolds, combining the functionality of fillers with suitable load-bearing ability, biodegradability, and additive manufacturing (AM) compatibility of the polymer. Two key determinants of their utility are their rheological behavior in the molten state, determining AM processability and their mechanical load-bearing properties. We report here the characterization of both these physical properties for four bone TE relevant composite formulations with poly(ethylene oxide terephthalate)/poly(butylene terephthalate (PEOT/PBT) as a base polymer, which is often used to fabricate TE scaffolds. The fillers used were reduced graphene oxide (rGO), hydroxyapatite (HA), gentamicin intercalated in zirconium phosphate (ZrP-GTM) and ciprofloxacin intercalated in MgAl layered double hydroxide (MgAl-CFX). The rheological assessment showed that generally the viscous behavior dominated the elastic behavior (G″ > G') for the studied composites, at empirically determined extrusion temperatures. Coupled rheological-thermal characterization of ZrP-GTM and HA composites showed that the fillers increased the solidification temperatures of the polymer melts during cooling. Both these findings have implications for the required extrusion temperatures and bonding between layers. Mechanical tests showed that the fillers generally not only made the polymer stiffer but more brittle in proportion to the filler fractions. Furthermore, the elastic moduli of scaffolds did not directly correlate with the corresponding bulk material properties, implying composite-specific AM processing effects on the mechanical properties. Finally, we show computational models to predict multimaterial scaffold elastic moduli using measured single material scaffold and bulk moduli. The reported characterizations are essential for assessing the AM processability and ultimately the suitability of the manufactured scaffolds for the envisioned bone regeneration application.
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Affiliation(s)
- Ravi Sinha
- MERLN
Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht 6229 ER, The Netherlands
| | - Alberto Sanchez
- TECNALIA,
Basque Research and Technology Alliance (BRTA), Mikeletegi 2, San Sebastián 20009, Spain
| | - Maria Camara-Torres
- MERLN
Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht 6229 ER, The Netherlands
| | | | - Andrea Roberto Calore
- MERLN
Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht 6229 ER, The Netherlands
- Biobased
Materials, Sciences, Chemelot Center, Geleen 6167 RD, The Netherlands
| | - Jules Harings
- Biobased
Materials, Sciences, Chemelot Center, Geleen 6167 RD, The Netherlands
| | | | | | | | | | | | | | - Sergio Perez
- TECNALIA,
Basque Research and Technology Alliance (BRTA), Mikeletegi 2, San Sebastián 20009, Spain
| | - Sara Villanueva
- TECNALIA,
Basque Research and Technology Alliance (BRTA), Mikeletegi 2, San Sebastián 20009, Spain
| | - Amaia Matanza
- Centro
de Fisica de Materiales (CSIC, UPV/EHU), Materials Physics Center (MPC), San Sebastián 20018, Spain
| | - Alessandro Patelli
- Department
of Physics and Astronomy, Padova University, Padova 35131, Italy
| | - Nino Grizzuti
- University
of Naples Federico II, Naples 80125, Italy
| | - Carlos Mota
- MERLN
Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht 6229 ER, The Netherlands
| | - Lorenzo Moroni
- MERLN
Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht 6229 ER, The Netherlands
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6
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Carette X, Dhond L, Hemberg A, Thiry D, Mincheva R, Cailloux J, Santana Perez O, Cossement D, Dubus M, Kerdjoudj H, Snyders R, Raquez JM. Innovative One-Shot Paradigm to Tune Filler–Polymer Matrix Interface Properties by Plasma Polymer Coating in Osteosynthesis Applications. ACS APPLIED BIO MATERIALS 2021; 4:3067-3078. [DOI: 10.1021/acsabm.0c01429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xavier Carette
- Laboratory of Polymeric and Composite Materials (LPCM), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
| | - Laeticia Dhond
- Laboratory of Polymeric and Composite Materials (LPCM), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Chimie des Interactions Plasma Surface (ChIPS), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
| | - Axel Hemberg
- Materia-Nova Research Center, Parc Initialis, B-7000 Mons, Belgium
| | - Damien Thiry
- Chimie des Interactions Plasma Surface (ChIPS), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
| | - Rosica Mincheva
- Laboratory of Polymeric and Composite Materials (LPCM), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
| | - Jonathan Cailloux
- Centre Català del Plàstic (CCP), Universitat Politécnica de Catalunya-Barcelona Tech (EEBE-UPC), Av. D’Eduard Maristany, 16, 08019 Barcelona, Spain
| | - Orlando Santana Perez
- Centre Català del Plàstic (CCP), Universitat Politécnica de Catalunya-Barcelona Tech (EEBE-UPC), Av. D’Eduard Maristany, 16, 08019 Barcelona, Spain
| | - Damien Cossement
- Materia-Nova Research Center, Parc Initialis, B-7000 Mons, Belgium
| | - Marie Dubus
- EA 4691 Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne-Ardenne, 51100 Reims, France
- UFR d’odontologie, Universite′ de Reims Champagne Ardenne, 51100 Reims, France
| | - Halima Kerdjoudj
- EA 4691 Biomatériaux et Inflammation en Site Osseux (BIOS), Université de Reims Champagne-Ardenne, 51100 Reims, France
- UFR d’odontologie, Universite′ de Reims Champagne Ardenne, 51100 Reims, France
| | - Rony Snyders
- Chimie des Interactions Plasma Surface (ChIPS), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
- Materia-Nova Research Center, Parc Initialis, B-7000 Mons, Belgium
| | - Jean-Marie Raquez
- Laboratory of Polymeric and Composite Materials (LPCM), CIRMAP, University of Mons, 23 Place du Parc, B-7000 Mons, Belgium
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Zeinali R, del Valle LJ, Torras J, Puiggalí J. Recent Progress on Biodegradable Tissue Engineering Scaffolds Prepared by Thermally-Induced Phase Separation (TIPS). Int J Mol Sci 2021; 22:ijms22073504. [PMID: 33800709 PMCID: PMC8036748 DOI: 10.3390/ijms22073504] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/23/2022] Open
Abstract
Porous biodegradable scaffolds provide a physical substrate for cells allowing them to attach, proliferate and guide the formation of new tissues. A variety of techniques have been developed to fabricate tissue engineering (TE) scaffolds, among them the most relevant is the thermally-induced phase separation (TIPS). This technique has been widely used in recent years to fabricate three-dimensional (3D) TE scaffolds. Low production cost, simple experimental procedure and easy processability together with the capability to produce highly porous scaffolds with controllable architecture justify the popularity of TIPS. This paper provides a general overview of the TIPS methodology applied for the preparation of 3D porous TE scaffolds. The recent advances in the fabrication of porous scaffolds through this technique, in terms of technology and material selection, have been reviewed. In addition, how properties can be effectively modified to serve as ideal substrates for specific target cells has been specifically addressed. Additionally, examples are offered with respect to changes of TIPS procedure parameters, the combination of TIPS with other techniques and innovations in polymer or filler selection.
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Affiliation(s)
- Reza Zeinali
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
| | - Luis J. del Valle
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Joan Torras
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, c/Baldiri Reixac 10-12, 08028 Barcelona, Spain
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
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8
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Novel Semi-Interpenetrated Polymer Networks of Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate)/Poly (Vinyl Alcohol) with Incorporated Conductive Polypyrrole Nanoparticles. Polymers (Basel) 2020; 13:polym13010057. [PMID: 33375726 PMCID: PMC7795713 DOI: 10.3390/polym13010057] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 12/02/2022] Open
Abstract
This paper reports the preparation and characterization of semi-interpenetrating polymer networks (semi-IPN) of poly(3-hydroxybutirate-co-3-hydroxyvalerate), PHBV, and poly (vinyl alcohol), PVA, with conductive polypirrole (PPy) nanoparticles. Stable hybrid semi-IPN (PHBV/PVA 30/70 ratio) hydrogels were produced by solvent casting, dissolving each polymer in chloroform and 1-methyl-2-pyrrolidone respectively, and subsequent glutaraldehyde crosslinking of the PVA chains. The microstructure and physical properties of this novel polymeric system were analysed, including thermal behaviour and degradation, water sorption, wettability and electrical conductivity. The conductivity of these advanced networks rose significantly at higher PPy nanoparticles content. Fourier transform infrared spectroscopy (FTIR) and calorimetry characterization indicated good miscibility and compatibility between all the constituents, with no phase separation and strong interactions between phases. A single glass transition was observed between those of pure PHBV and PVA, although PVA was dominant in its contribution to the glass transition process. Incorporating PPy nanoparticles significantly reduced the hydrogel swelling, even at low concentrations, indicating molecular interactions between the PPy nanoparticles and the hydrogel matrix. The PHBV/PVA semi-IPN showed higher thermal stability than the neat polymers and PHBV/PVA blend, which also remained in the tertiary systems.
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dos Santos VI, Merlini C, Aragones Á, Cesca K, Fredel MC. Influence of calcium phosphates incorporation into poly(lactic-co-glycolic acid) electrospun membranes for guided bone regeneration. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109253] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Liulan Lin, Li M, Zhou Q. Study of Thermal-Responsive Poly-L-lactic acid/Nanohydroxyapatite Composite Filament and its 3D Printing. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x19080017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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The Comprehensive Approach to Preparation and Investigation of the Eu 3+ Doped Hydroxyapatite/poly(L-lactide) Nanocomposites: Promising Materials for Theranostics Application. NANOMATERIALS 2019; 9:nano9081146. [PMID: 31405106 PMCID: PMC6724068 DOI: 10.3390/nano9081146] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 08/05/2019] [Accepted: 08/06/2019] [Indexed: 12/13/2022]
Abstract
In response to the need for new materials for theranostics application, the structural and spectroscopic properties of composites designed for medical applications, received in the melt mixing process, were evaluated. A composite based on medical grade poly(L-lactide) (PLLA) and calcium hydroxyapatite (HAp) doped with Eu3+ ions was obtained by using a twin screw extruder. Pure calcium Hap, as well as the one doped with Eu3+ ions, was prepared using the precipitation method and then used as a filler. XRPD (X-ray Powder Diffraction) and IR (Infrared) spectroscopy were applied to investigate the structural properties of the obtained materials. DSC (Differential Scanning Calorimetry) was used to assess the Eu3+ ion content on phase transitions in PLLA. The tensile properties were also investigated. The excitation, emission spectra as well as decay time were measured to determine the spectroscopic properties. The simplified Judd–Ofelt (J-O) theory was applied and a detailed analysis in connection with the observed structural and spectroscopic measurements was made and described.
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12
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Shuai C, Xu Y, Feng P, Xu L, Peng S, Deng Y. Co-enhance bioactive of polymer scaffold with mesoporous silica and nano-hydroxyapatite. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1097-1113. [PMID: 31156060 DOI: 10.1080/09205063.2019.1622221] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Mesoporous silica Santa Barbara Amorphous-15 (SBA15) and nano-hydroxyapatite (nHA) were introduced in poly-l-lactic acid (PLLA) scaffold fabricated by selective laser sintering to co-enhance the bioactivity. On the one hand, the active elements silicon and calcium released respectively by the degradation of SBA15 and nHA were favorable for stimulating cell response. On the other hand, the hydrated silica gel layer derived from SBA15 could adsorb calcium ions released from nHA, thereby co-promoting apatite nucleation and growth. The experimental results showed that the formation of bone-like apatite on the scaffold was accelerated under simulated body fluid, indicating a good biomineralization capacity. Moreover, the scaffold demonstrated a good cell response in promoting the attachment of cell and the expression of alkaline phosphatase activity. Besides, SBA15 and nHA not only improved the hydrophilicity of the scaffold (the water contact angle changed from 107.4° to 57.8°), but also retarded the pH reduction by neutralizing the acidic hydrolysate of PLLA. These results indicated that the PLLA-SBA15-nHA scaffold may be potential candidates for bone repair.
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Affiliation(s)
- Cijun Shuai
- a State Key Laboratory of High Performance Complex Manufacturing , College of Mechanical and Electrical Engineering, Central South University , Changsha , China.,b Jiangxi University of Science and Technology , Ganzhou , China.,c Shenzhen Institute of Information Technology , Shenzhen , China
| | - Yong Xu
- a State Key Laboratory of High Performance Complex Manufacturing , College of Mechanical and Electrical Engineering, Central South University , Changsha , China.,d Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, College of Mechanical and Energy Engineering, Shaoyang University , Shaoyang , China
| | - Pei Feng
- a State Key Laboratory of High Performance Complex Manufacturing , College of Mechanical and Electrical Engineering, Central South University , Changsha , China
| | - Liang Xu
- b Jiangxi University of Science and Technology , Ganzhou , China
| | - Shuping Peng
- e NHC Key Laboratory of Carcinogenesis and The Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Central South University, Changsha, China.,f Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha, China
| | - Youwen Deng
- g g Department of Emergency Medicine, the Second Xiangya Hospital, Central South University, Changsha, China
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13
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Szustakiewicz K, Gazińska M, Kryszak B, Grzymajło M, Pigłowski J, Wiglusz RJ, Okamoto M. The influence of hydroxyapatite content on properties of poly(L-lactide)/hydroxyapatite porous scaffolds obtained using thermal induced phase separation technique. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.01.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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14
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Ng HM, Bee ST, Tin Sin L, Ratnam CT, Rahmat AR. Hydroxyapatite For Poly(α-Hydroxy Esters) Biocomposites Applications. POLYM REV 2018. [DOI: 10.1080/15583724.2018.1488729] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Hon-Meng Ng
- Department of Chemical Engineering Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang, Malaysia
| | - Soo-Tueen Bee
- Department of Chemical Engineering Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang, Malaysia
| | - Lee Tin Sin
- Department of Chemical Engineering Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Kajang, Malaysia
| | - Chantara T. Ratnam
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Kajang, Malaysia
| | - Abdul Razak Rahmat
- Department of Polymer Engineering Faculty of Chemical Engineering, Universiti Teknologi Malaysia, Johor, Malaysia
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15
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Szustakiewicz K, Stępak B, Antończak A, Maj M, Gazińska M, Kryszak B, Pigłowski J. Femtosecond laser-induced modification of PLLA/hydroxyapatite composite. Polym Degrad Stab 2018. [DOI: 10.1016/j.polymdegradstab.2018.01.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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16
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Effects of hydroxyapatite (HA) particles on the PLLA polymeric matrix for fabrication of absorbable interference screws. Polym Bull (Berl) 2017. [DOI: 10.1007/s00289-017-2158-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Ain QU, Khan AN, Nabavinia M, Mujahid M. Enhanced mechanical properties and biocompatibility of novel hydroxyapatite/TOPAS hybrid composite for bone tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:807-815. [DOI: 10.1016/j.msec.2017.02.117] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 12/17/2016] [Indexed: 12/24/2022]
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18
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Milicevic D, Suljovrujic E. The influence of the preparation conditions and filler content on thermal properties of poly-l
-lactide and hydroxyapatite/poly-l
-lactide nanocomposite. POLYM INT 2017. [DOI: 10.1002/pi.5382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Dejan Milicevic
- Vinca Institute of Nuclear Sciences; University of Belgrade; Belgrade Serbia
| | - Edin Suljovrujic
- Vinca Institute of Nuclear Sciences; University of Belgrade; Belgrade Serbia
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19
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Babaahmadi M, Sabzi M, Mahdavinia GR, Keramati M. Preparation of amorphous nanocomposites with quick heat triggered shape memory behavior. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.01.074] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Channasanon S, Kaewkong P, Uppanan P, Tanodekaew S. Mechanical and biological properties of photocurable oligolactide-HA composites investigated under accelerated degradation. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:675-91. [PMID: 26838814 DOI: 10.1080/09205063.2016.1150241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The major concern related to biodegradable bone substitute materials is the loss of mechanical strength which can be undesirable when occurring too quickly before new bone formation. In this study, the multifunctional lactide oligomers having 2, 3, and 4 arms end capped with methacrylate groups were synthesized with the aim of improving the degradation properties. Their composites with hydroxyapatite (HA) were photopolymerized and subjected to accelerated degradation at 60 °C. The results showed that increasing number of arms significantly improved thermal and mechanical properties as well as biocompatibility of the composites. All composites although varying in number of arms had similar levels of bone-specific gene expression and calcification indicating their equal bioactivity in supporting bone formation. The high HA content in the composites was proposed to be responsible for enhanced osteoblast response, and this tended to suppress the effects of polymeric structure.
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Affiliation(s)
- Somruethai Channasanon
- a Biomedical Engineering Research Unit , National Metal and Materials Technology Center , Pathumthani , Thailand
| | - Pakkanun Kaewkong
- a Biomedical Engineering Research Unit , National Metal and Materials Technology Center , Pathumthani , Thailand
| | - Paweena Uppanan
- a Biomedical Engineering Research Unit , National Metal and Materials Technology Center , Pathumthani , Thailand
| | - Siriporn Tanodekaew
- a Biomedical Engineering Research Unit , National Metal and Materials Technology Center , Pathumthani , Thailand
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21
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Goonasekera CS, Jack KS, Cooper-White JJ, Grøndahl L. Dispersion of hydroxyapatite nanoparticles in solution and in polycaprolactone composite scaffolds. J Mater Chem B 2016; 4:409-421. [DOI: 10.1039/c5tb02255j] [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]
Abstract
Structure–property–performance in TIPS fabricated nanocomposite scaffolds: influence of polymer–solvent interaction and phase-separation process on the dispersion and surface distribution of particles.
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Affiliation(s)
- Chandhi S. Goonasekera
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Australia
- Centre for Microscopy and Microanalysis
- The University of Queensland
| | - Kevin S. Jack
- Centre for Microscopy and Microanalysis
- The University of Queensland
- Australia
| | - Justin J. Cooper-White
- Tissue Engineering and Microfluidics Laboratory
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Australia
- The School of Chemical Engineering
| | - Lisbeth Grøndahl
- School of Chemistry and Molecular Biosciences
- The University of Queensland
- Australia
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22
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Baklavaridis A, Zuburtikudis I, Panayiotou C. Porous composite structures derived from multiphase polymer blends. POLYM ENG SCI 2014. [DOI: 10.1002/pen.24025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Apostolos Baklavaridis
- Department of Mechanical and Industrial Design Engineering; TEI of Western Macedonia; 50100 Kozani Greece
- Department of Chemical Engineering; Aristotle University of Thessaloniki; 54124 Thessaloniki Greece
| | - Ioannis Zuburtikudis
- Department of Mechanical and Industrial Design Engineering; TEI of Western Macedonia; 50100 Kozani Greece
| | - Costas Panayiotou
- Department of Chemical Engineering; Aristotle University of Thessaloniki; 54124 Thessaloniki Greece
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23
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Thermomechanical properties of poly(lactic acid) films reinforced with hydroxyapatite and regenerated cellulose microfibers. J Appl Polym Sci 2014. [DOI: 10.1002/app.40911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Ege D, Cameron R, Best S. The degradation behavior of nanoscale HA/PLGA andα-TCP/PLGA composites. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2014. [DOI: 10.1680/bbn.13.00027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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25
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Persson M, Lorite GS, Cho SW, Tuukkanen J, Skrifvars M. Melt spinning of poly(lactic acid) and hydroxyapatite composite fibers: influence of the filler content on the fiber properties. ACS APPLIED MATERIALS & INTERFACES 2013; 5:6864-6872. [PMID: 23848437 DOI: 10.1021/am401895f] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Composite fibers from poly(lactic acid) (PLA) and hydroxyapatite (HA) particles were prepared using melt spinning. Different loading concentrations of HA particles (i.e., 5, 10, 15, and 20 wt %) in the PLA fibers and solid-state draw ratios (SSDRs) were evaluated in order to investigate their influence on the fibers' morphology and thermal and mechanical properties. A scanning electron microscopy investigation indicated that the HA particles were homogeneously distributed in the PLA fibers. It was also revealed by atomic force microscopy and Fourier transform infrared spectroscopy that HA particles were located on the fiber surface, which is of importance for their intended application in biomedical textiles. Our results also suggest that the mechanical properties were independent of the loading concentration of the HA particles and that the SSDR played an important role in improving the mechanical properties of the composite fibers.
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Affiliation(s)
- Maria Persson
- School of Engineering, University of Borås, SE-501 90 Borås, Sweden
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26
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Poly(allyl methacrylate) functionalized hydroxyapatite nanocrystals via the combination of surface-initiated RAFT polymerization and thiol–ene protocol: A potential anticancer drug nanocarrier. J Colloid Interface Sci 2013; 394:132-40. [DOI: 10.1016/j.jcis.2012.11.068] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2012] [Revised: 11/26/2012] [Accepted: 11/26/2012] [Indexed: 11/22/2022]
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27
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Chen J, Chen W, Deng C, Meng F, Zhong Z. Controlled surface-initiated ring-opening polymerization of L
-lactide from risedronate-anchored hydroxyapatite nanocrystals: Novel synthesis of biodegradable hydroxyapatite/poly(L
-lactide) nanocomposites. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24878] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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