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Wojasiński M, Podgórski R, Kowalczyk P, Latocha J, Prystupiuk K, Janowska O, Gierlotka S, Staniszewska M, Ciach T, Sobieszuk P. Mechanically suitable and osteoinductive 3D-printed composite scaffolds with hydroxyapatite nanoparticles having diverse morphologies for bone tissue engineering. J Biomed Mater Res B Appl Biomater 2024; 112:e35409. [PMID: 38786580 DOI: 10.1002/jbm.b.35409] [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: 12/19/2023] [Revised: 03/04/2024] [Accepted: 04/02/2024] [Indexed: 05/25/2024]
Abstract
The challenge of integrating hydroxyapatite nanoparticles (nHAp) with polymers is hindered by the conflict between the hydrophilic and hygroscopic properties of nHAp and the hydrophobic properties of polymers. This conflict particularly affects the materials when calcium phosphates, including nHAp, are used as a filler in composites in thermal processing applications such as 3D printing with fused filament fabrication (FFF). To overcome this, we propose a one-step surface modification of nHAp with calcium stearate monolayer. Moreover, to build the scaffold with suitable mechanical strength, we tested the addition of nHAp with diverse morphology-spherical, plate- and rod-like nanoparticles. Our analysis showed that the composite of polycaprolactone (PCL) reinforced with nHAp with rod and plate morphologies modified with calcium stearate monolayer exhibited a significant increase in compressive strength. However, composites with spherical nHAp added to PCL showed a significant reduction in compressive modulus and compressive strength, but both parameters were within the applicability range of hard tissue scaffolds. None of the tested composite scaffolds showed cytotoxicity in L929 murine fibroblasts or MG-63 human osteoblast-like cells, supporting the proliferation of the latter. Additionally, PCL/nHAp scaffolds reinforced with spherical nHAp caused osteoactivation of bone marrow human mesenchymal stem cells, as indicated by alkaline phosphatase activity and COL1, RUNX2, and BGLAP expression. These results suggest that the calcium stearate monolayer on the surface of the nHAp particles allows the production of polymer/nHAp composites suitable for hard tissue engineering and personalized implant production in 3D printing using the FFF technique.
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Affiliation(s)
- Michał Wojasiński
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Rafał Podgórski
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Piotr Kowalczyk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Joanna Latocha
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Kornel Prystupiuk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Oliwia Janowska
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Stanisław Gierlotka
- Laboratory of Nanostructures, Institute of High Pressure Physics, Polish Academy of Sciences, Warsaw, Poland
| | | | - Tomasz Ciach
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw, Poland
| | - Paweł Sobieszuk
- Laboratory of Nanohydroxyapatite (LabOFn), Faculty of Chemical and Process Engineering, Department of Biotechnology and Bioprocess Engineering, Warsaw University of Technology, Warsaw, Poland
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Huang C, Luo XY, Chao ZS, Zhang YF, Liu K, Yi WJ, Li LJ, Zhou Z. Epoxidized Soybean Oleic Acid/Oligomeric Poly(lactic acid)-Grafted Nano-Hydroxyapatite and Its Role as a Filler in Poly(L-lactide) for Potential Bone Fixation Application. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2620. [PMID: 38893884 PMCID: PMC11173816 DOI: 10.3390/ma17112620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/10/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
One of the most effective strategies for modifying the surface properties of nano-fillers and enhancing their composite characteristics is through polymer grafting. In this study, a coprecipitation method was employed to modify hydroxyapatite (HAP) with epoxidized soybean oleic acid (ESOA), resulting in ESOA-HAP. Subsequently, oligomeric poly(lactic acid) (OPLA) was grafted onto the surface of ESOA-HAP, yielding OPLA-ESOA-HAP. HAP, ESOA-HAP, and OPLA-ESOA-HAP were comprehensively characterized. The results demonstrate the progressive grafting of ESOA and OPLA onto the surface of HAP, resulting in enhanced hydrophobicity and improved dispersity in organic solvent for OPLA-ESOA-HAP compared to HAP. The vitality and adhesion of Wistar rat mesenchymal stem cells (MSCs) were assessed using HAP and modified HAP materials. Following culture with MSCs for 72 h, the OPLA-ESOA-HAP showed an inhibition rate lower than 23.0% at a relatively high concentration (1.0 mg/mL), which is three times lower compared to HAP under similar condition. The cell number for OPLA-ESOA-HAP was 4.5 times higher compared to HAP, indicating its superior biocompatibility. Furthermore, the mechanical properties of the OPLA-ESOA-HAP/PLLA composite almost remained unaltered ever after undergoing two stages of thermal processing involving melt extrusion and inject molding. The increase in the biocompatibility and relatively high mechanical properties render OPLA-ESOA-HAP/PLLA a potential material for the biodegradable fixation system.
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Affiliation(s)
- Chen Huang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410082, China; (C.H.); (X.-Y.L.); (Z.-S.C.); (Y.-F.Z.)
| | - Xin-Yu Luo
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410082, China; (C.H.); (X.-Y.L.); (Z.-S.C.); (Y.-F.Z.)
| | - Zi-Sheng Chao
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410082, China; (C.H.); (X.-Y.L.); (Z.-S.C.); (Y.-F.Z.)
| | - Yue-Fei Zhang
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410082, China; (C.H.); (X.-Y.L.); (Z.-S.C.); (Y.-F.Z.)
| | - Kun Liu
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China;
| | - Wen-Jun Yi
- College of Materials Science and Engineering, Changsha University of Science & Technology, Changsha 410082, China; (C.H.); (X.-Y.L.); (Z.-S.C.); (Y.-F.Z.)
| | - Li-Jun Li
- College of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China;
| | - Zeyan Zhou
- College of Materials Science and Engineering, Hunan University, Changsha 410012, China
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3
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Tang S, Shen Y, Jiang L, Zhang Y. Surface Modification of Nano-Hydroxyapatite/Polymer Composite for Bone Tissue Repair Applications: A Review. Polymers (Basel) 2024; 16:1263. [PMID: 38732732 PMCID: PMC11085102 DOI: 10.3390/polym16091263] [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: 01/21/2024] [Revised: 03/19/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
Nano-hydroxyapatite (n-HA) is the main inorganic component of natural bone, which has been widely used as a reinforcing filler for polymers in bone materials, and it can promote cell adhesion, proliferation, and differentiation. It can also produce interactions between cells and material surfaces through selective protein adsorption and has therefore always been a research hotspot in orthopedic materials. However, n-HA nano-particles are inherently easy to agglomerate and difficult to disperse evenly in the polymer. In addition, there are differences in trace elements between n-HA nano-particles and biological apatite, so the biological activity needs to be improved, and the slow degradation in vivo, which has seriously hindered the application of n-HA in bone fields, is unacceptable. Therefore, the modification of n-HA has been extensively reported in the literature. This article reviewed the physical modification and various chemical modification methods of n-HA in recent years, as well as their modification effects. In particular, various chemical modification methods and their modification effects were reviewed in detail. Finally, a summary and suggestions for the modification of n-HA were proposed, which would provide significant reference for achieving high-performance n-HA in biomedical applications.
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Affiliation(s)
- Shuo Tang
- National & Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, China
| | - Yifei Shen
- National & Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, China
| | - Liuyun Jiang
- National & Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, China
| | - Yan Zhang
- National & Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
- Key Laboratory of Light Energy Conversion Materials of Hunan Province College, Hunan Normal University, Changsha 410081, China
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Zheng W, Yang W, Wei W, Liu Z, Tremblay PL, Zhang T. An Electroconductive and Antibacterial Adhesive Nanocomposite Hydrogel for High-Performance Skin Wound Healing. Adv Healthc Mater 2024; 13:e2303138. [PMID: 37903562 DOI: 10.1002/adhm.202303138] [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: 09/18/2023] [Revised: 10/24/2023] [Indexed: 11/01/2023]
Abstract
Multifunctional hydrogel adhesives inhibiting infections and enabling the electrical stimulation (ES) of tissue reparation are highly desirable for the healing of surgical wounds and other skin injuries. Herein, a therapeutic nanocomposite hydrogel is designed by integrating β-cyclodextrin-embedded Ag nanoparticles (CDAgNPs) in a polyvinyl alcohol (PVA) matrix enhanced with free β-cyclodextrin (CD) and an atypical macromolecule made of β-glucan grafted with hyaluronic acid (HAG). The main objective is to develop a biocompatible dressing combining the electroconductivity and antibacterial activity of CDAgNPs with the cohesiveness and porosity of PVA and the anti-inflammatory, moisturizing, and cell proliferation-promoting properties of HAG. The last component, CD, is added to strengthen the network structure of the hydrogel. PVA/CD/HAG/CDAgNP exhibited excellent adhesion strength, biocompatibility, electroconductivity, and antimicrobial activity against a wide range of bacteria. In addition, the nanocomposite hydrogel has a swelling ratio and water retention capacity suitable to serve as a wound dressing. PVA/CD/HAG/CDAgNP promoted the proliferation of fibroblast in vitro, accelerated the healing of skin wounds in an animal model, and is hemostatic. Upon ES, the PVA/CD/HAG/CDAgNP nanocomposite hydrogel became more efficient both in vitro and in vivo further speeding up the skin healing process thus demonstrating its potential as a next-generation electroconductive wound dressing.
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Affiliation(s)
- Wen Zheng
- School of Chemistry, Chemical Engineering, and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wenyue Yang
- School of Chemistry, Chemical Engineering, and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Wenlong Wei
- School of Chemistry, Chemical Engineering, and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Ziru Liu
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Pier-Luc Tremblay
- School of Chemistry, Chemical Engineering, and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572024, P. R. China
- Shaoxing Institute for Advanced Research, Wuhan University of Technology, Shaoxing, 312300, P. R. China
| | - Tian Zhang
- School of Chemistry, Chemical Engineering, and Life Sciences, Wuhan University of Technology, Wuhan, 430070, P. R. China
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, P. R. China
- Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572024, P. R. China
- Shaoxing Institute for Advanced Research, Wuhan University of Technology, Shaoxing, 312300, P. R. China
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Shaikh S, Baniasadi H, Mehrotra S, Ghosh R, Singh P, Seppälä JV, Kumar A. Strontium-Substituted Nanohydroxyapatite-Incorporated Poly(lactic acid) Composites for Orthopedic Applications: Bioactive, Machinable, and High-Strength Properties. Biomacromolecules 2023; 24:4901-4914. [PMID: 37874127 DOI: 10.1021/acs.biomac.3c00610] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Traditional metal-alloy bone fixation devices provide structural support for bone repair but have limitations in actively promoting bone healing and often require additional surgeries for implant removal. In this study, we focused on addressing these challenges by fabricating biodegradable composites using poly(lactic acid) (PLA) and strontium-substituted nanohydroxyapatite (SrHAP) via melt compounding and injection molding. Various percentages of SrHAP (5, 10, 20, and 30% w/w) were incorporated into the PLA matrix. We systematically investigated the structural, morphological, thermal, mechanical, rheological, and dynamic mechanical properties of the prepared composites. Notably, the tensile modulus, a critical parameter for orthopedic implants, significantly improved from 2.77 GPa in pristine PLA to 3.73 GPa in the composite containing 10% w/w SrHAP. The incorporation of SrHAP (10% w/w) into the PLA matrix led to an increased storage modulus, indicating a uniform dispersion of SrHAP within the PLA and good compatibility between the polymer and nanoparticles. Moreover, we successfully fabricated screws using PLA composites with 10% (w/w) SrHAP, demonstrating their formability at room temperature and radiopacity when observed under X-ray microtomography (micro-CT). Furthermore, the water contact angle decreased from 93 ± 2° for pristine PLA to 75 ± 3° for the composite containing SrHAP, indicating better surface wettability. To assess the biological behavior of the composites, we conducted in vitro cell-material tests, which confirmed their osteoconductive and osteoinductive properties. These findings highlight the potential of our developed PLA/SrHAP10 (10% w/w) composites as machinable implant materials for orthopedic applications. In conclusion, our study presents the fabrication and comprehensive characterization of biodegradable composites comprising PLA and strontium-substituted nanohydroxyapatite (SrHAP). These composites exhibit improved mechanical properties, formability, and radiopacity while also demonstrating desirable biological behavior. Our results suggest that these PLA/SrHAP10 composites hold promise as machinable implant materials for orthopedic applications.
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Affiliation(s)
- Shazia Shaikh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Hossein Baniasadi
- Polymer Technology, School of Chemical Engineering, Aalto University, P.O. Box 16100, Espoo, FI-00076 Aalto, Finland
| | - Shreya Mehrotra
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Rupita Ghosh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Prerna Singh
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
| | - Jukka V Seppälä
- Polymer Technology, School of Chemical Engineering, Aalto University, P.O. Box 16100, Espoo, FI-00076 Aalto, Finland
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Environmental Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center for Nanosciences, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- The Mehta Family Center for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
- Center of Excellence for Orthopaedics and Prosthetics, Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kanpur 208016, UP, India
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Yang Z, Wang B, Liu W, Li X, Liang K, Fan Z, Li JJ, Niu Y, He Z, Li H, Wang D, Lin J, Du Y, Lin J, Xing D. In situ self-assembled organoid for osteochondral tissue regeneration with dual functional units. Bioact Mater 2023; 27:200-215. [PMID: 37096194 PMCID: PMC10121637 DOI: 10.1016/j.bioactmat.2023.04.002] [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: 02/12/2023] [Revised: 04/01/2023] [Accepted: 04/02/2023] [Indexed: 04/26/2023] Open
Abstract
The regeneration of hierarchical osteochondral units is challenging due to difficulties in inducing spatial, directional and controllable differentiation of mesenchymal stem cells (MSCs) into cartilage and bone compartments. Emerging organoid technology offers new opportunities for osteochondral regeneration. In this study, we developed gelatin-based microcryogels customized using hyaluronic acid (HA) and hydroxyapatite (HYP), respectively for inducing cartilage and bone regeneration (denoted as CH-Microcryogels and OS-Microcryogels) through in vivo self-assembly into osteochondral organoids. The customized microcryogels showed good cytocompatibility and induced chondrogenic and osteogenic differentiation of MSCs, while also demonstrating the ability to self-assemble into osteochondral organoids with no delamination in the biphasic cartilage-bone structure. Analysis by mRNA-seq showed that CH-Microcryogels promoted chondrogenic differentiation and inhibited inflammation, while OS-Microcryogels facilitated osteogenic differentiation and suppressed the immune response, by regulating specific signaling pathways. Finally, the in vivo engraftment of pre-differentiated customized microcryogels into canine osteochondral defects resulted in the spontaneous assembly of an osteochondral unit, inducing simultaneous regeneration of both articular cartilage and subchondral bone. In conclusion, this novel approach for generating self-assembling osteochondral organoids utilizing tailor-made microcryogels presents a highly promising avenue for advancing the field of tissue engineering.
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Affiliation(s)
- Zhen Yang
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
| | - Bin Wang
- Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, China
| | - Wei Liu
- Beijing CytoNiche Biotechnology Co. Ltd, Beijing, 10081, China
| | - Xiaoke Li
- Department of Orthopedics, Shanxi Medical University Second Affiliated Hospital, Taiyuan, 030001, China
| | - Kaini Liang
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 10084, China
| | - Zejun Fan
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 10084, China
| | - Jiao Jiao Li
- School of Biomedical Engineering, Faculty of Engineering and IT, University of Technology Sydney, Sydney, Australia
| | - Yudi Niu
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 10084, China
| | - Zihao He
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
| | - Hui Li
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
| | - Du Wang
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
| | - Jianjing Lin
- Department of Sports Medicine and Rehabilitation, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 10084, China
- Corresponding author. Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 10084, China.
| | - Jianhao Lin
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
- Corresponding author. Arthritis Institute, Peking University, Beijing, 100044, China.
| | - Dan Xing
- Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China
- Arthritis Institute, Peking University, Beijing, 100044, China
- Corresponding author. Arthritis Clinical and Research Center, Peking University People's Hospital, No.11 Xizhimen South Street, Beijing, 100044, China.
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Nifant'ev I, Tavtorkin A, Komarov P, Kretov E, Korchagina S, Chinova M, Gavrilov D, Ivchenko P. Dispersant and Protective Roles of Amphiphilic Poly(ethylene phosphate) Block Copolymers in Polyester/Bone Mineral Composites. Int J Mol Sci 2023; 24:11175. [PMID: 37446347 DOI: 10.3390/ijms241311175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/02/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023] Open
Abstract
Composites of synthetic bone mineral substitutes (BMS) and biodegradable polyesters are of particular interest for bone surgery and orthopedics. Manufacturing of composite scaffolds commonly uses mixing of the BMS with polymer melts. Melt processing requires a high homogeneity of the mixing, and is complicated by BMS-promoted thermal degradation of polymers. In our work, poly(L-lactide) (PLLA) and poly(ε-caprolactone) (PCL) composites reinforced by commercial β-tricalcium phosphate (βTCP) or synthesized carbonated hydroxyapatite with hexagonal and plate-like crystallite shapes (hCAp and pCAp, respectively) were fabricated using injection molding. pCAp-based composites showed advanced mechanical and thermal characteristics, and the best set of mechanical characteristics was observed for the PLLA-based composite containing 25 wt% of pCAp. To achieve compatibility of polyesters and pCAp, reactive block copolymers of PLLA or PCL with poly(tert-butyl ethylene phosphate) (C1 and C2, respectively) were introduced to the composite. The formation of a polyester-b-poly(ethylene phosphoric acid) (PEPA) compatibilizer during composite preparation, followed by chemical binding of PEPA with pCAp, have been proved experimentally. The presence of 5 wt% of the compatibilizer provided deeper homogenization of the composite, resulting in a marked increase in strength and moduli as well as a more pronounced nucleation effect during isothermal crystallization. The use of C1 increased the thermal stability of the PLLA-based composite, containing 25 wt% of pCAp. In view of positive impacts of polyester-b-PEPA on composite homogeneity, mechanical characteristics, and thermal stability, polyester-b-PEPA will find application in the further development of composite materials for bone surgery and orthopedics.
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Affiliation(s)
- Ilya Nifant'ev
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Alexander Tavtorkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Pavel Komarov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Egor Kretov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Faculty of Chemistry, National Research University Higher School of Economics, Myasnitskaya St. 20, 101100 Moscow, Russia
| | - Sofia Korchagina
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Maria Chinova
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
| | - Dmitry Gavrilov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
| | - Pavel Ivchenko
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Pr., 119991 Moscow, Russia
- Chemistry Department, M.V. Lomonosov Moscow State University, 1-3 Leninskie Gory, 119991 Moscow, Russia
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8
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Padjasek M, Cisło-Sankowska A, Lis-Bartos A, Qasem B, Marycz K. PLDLA/TPU Matrix Enriched with Cyclosporine A as a Therapeutic Platform for Immune-Mediated Keratitis (IMMK) in Horses. Int J Mol Sci 2023; 24:ijms24065735. [PMID: 36982806 PMCID: PMC10057311 DOI: 10.3390/ijms24065735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/05/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
The purpose of this study was to describe the use of PLDLA/TPU matrix enriched with cyclosporine A (CsA) as a therapeutic platform in horses with immune-mediated keratitis (IMMK) with an in vitro evaluation CsA release and degradation of the blend as well as determination of the safety and efficacy of that platform used in the animal model. The kinetics of the CsA release from matrices constructed of thermoplastic polyurethane (TPU) polymer and a copolymer of L-lactide with DL-lactide (PLDLA) (80:20) in the TPU (10%) and a PLDL (90%) polymer blend were studied. Moreover, we used the STF (Simulated Tear Fluid) at 37 °C as a biological environment to assess the CsA release and its degradation. Additionally, the platform described above was injected subconjunctival in the dorsolateral quadrant of the globe after standing sedation of horses with diagnosed superficial and mid-stromal IMMK. The obtained results indicated that the CsA release rate in the fifth week of the study increased significantly by the value of 0.3% compared to previous weeks. In all of the cases, the TPU/PLA doped with 12 mg of the CsA platform effectively reduced the clinical symptoms of keratitis, leading to the complete remission of the corneal opacity and infiltration four weeks post-injection. The results from this study showed that the PLDLA/TPU matrix enriched with the CsA platform was well tolerated by the equine model and effective in treating superficial and mid-stromal IMMK.
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Affiliation(s)
- Martyna Padjasek
- Department of Experimental Biology, The Faculty of Biology and Animal Science, The University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
- International Institute of Translational Medicine, Jesionowa 11 St., 55-124 Malin, Poland
| | - Anna Cisło-Sankowska
- Department of Experimental Biology, The Faculty of Biology and Animal Science, The University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
- International Institute of Translational Medicine, Jesionowa 11 St., 55-124 Malin, Poland
| | - Anna Lis-Bartos
- Department of Biomaterials and Composites, Faculty of Material Science and Ceramics, AGH University of Science and Technology, Aleja Adama Mickiewicza 30, 30-059 Krakow, Poland
| | - Badr Qasem
- Department of Experimental Biology, The Faculty of Biology and Animal Science, The University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
- International Institute of Translational Medicine, Jesionowa 11 St., 55-124 Malin, Poland
| | - Krzysztof Marycz
- Department of Experimental Biology, The Faculty of Biology and Animal Science, The University of Environmental and Life Sciences, 50-375 Wroclaw, Poland
- International Institute of Translational Medicine, Jesionowa 11 St., 55-124 Malin, Poland
- Correspondence:
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9
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Carette X, Mincheva R, Gonon MF, Raquez J. A simple approach for a
PEG‐
b
‐PLA
‐compatibilized interface in
PLA
/
HAp
nanocomposite. From the design of the material to the improvement of thermal/mechanical properties and bioactivity. J Appl Polym Sci 2022. [DOI: 10.1002/app.52807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Xavier Carette
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers University of Mons Mons Belgium
| | - Rosica Mincheva
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers University of Mons Mons Belgium
| | | | - Jean‐Marie Raquez
- Laboratory of Polymeric and Composite Materials, Center of Innovation and Research in Materials and Polymers University of Mons Mons Belgium
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10
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Pietrzykowska E, Romelczyk-Baishya B, Chodara A, Koltsov I, Smogór H, Mizeracki J, Pakieła Z, Łojkowski W. Microstructure and Mechanical Properties of Inverse Nanocomposite Made from Polylactide and Hydroxyapatite Nanoparticles. MATERIALS 2021; 15:ma15010184. [PMID: 35009328 PMCID: PMC8745816 DOI: 10.3390/ma15010184] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 12/29/2022]
Abstract
Polymer nanocomposites have been extensively researched for a variety of applications, including medical osteoregenerative implants. However, no satisfactory solution has yet been found for regeneration of big, and so-called critical, bone losses. The requirement is to create a resorbable material which is characterised by optimum porosity, sufficient strength, and elastic modulus matching that of the bone, thus stimulating tissue regrowth. Inverse nanocomposites, where the ceramic content is larger than the polymer content, are a recent development. Due to their high ceramic content, they may offer the required properties for bone implants, currently not met by polymer nanocomposites with a small number of nanoparticles. This paper presents inverse nanocomposites composed of bioresorbable nano crystalline hydroxyapatite (HAP NPs) and polylactide (PLLA), produced by cryomilling and a warm isostatic pressing method. The following compositions were studied: 25%, 50%, and 75% of HAP NPs by volume. The mechanical properties and structure of these composites were examined. It was discovered that 50% volume content was optimal as far as compressive strength and porosity are concerned. The inverse nanocomposite with 50% nanoceramics volume displayed a compressive strength of 99 ± 4 MPa, a contact angle of 50°, and 25% porosity, which make this material a candidate for further studies as a bioresorbable bone implant.
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Affiliation(s)
- Elżbieta Pietrzykowska
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (A.C.); (I.K.); (J.M.); (W.Ł.)
- Correspondence: ; Tel.: +48-22-228-760
| | - Barbara Romelczyk-Baishya
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (B.R.-B.); (Z.P.)
| | - Agnieszka Chodara
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (A.C.); (I.K.); (J.M.); (W.Ł.)
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (B.R.-B.); (Z.P.)
| | - Iwona Koltsov
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (A.C.); (I.K.); (J.M.); (W.Ł.)
| | - Hilary Smogór
- NETZSCH Instrumenty, Halicka 9, 31-036 Krakow, Poland;
| | - Jan Mizeracki
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (A.C.); (I.K.); (J.M.); (W.Ł.)
| | - Zbigniew Pakieła
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Woloska 141, 02-507 Warsaw, Poland; (B.R.-B.); (Z.P.)
| | - Witold Łojkowski
- Institute of High Pressure Physics, Polish Academy of Sciences, Sokolowska 29/37, 01-142 Warsaw, Poland; (A.C.); (I.K.); (J.M.); (W.Ł.)
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11
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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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12
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Study on the surface-modification of nano-hydroxyapatite with lignin and the corresponding nanocomposite with poly (lactide-co-glycolide). Front Chem Sci Eng 2020. [DOI: 10.1007/s11705-020-1970-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Kausar A. Polymer and nanobelt derived nanomaterials: opening doors to revolutionary stadia. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1793194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ayesha Kausar
- Nanosciences Division, National Center For Physics, Quaid-i-Azam University Campus, Islamabad, Pakistan
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14
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Chunyan T, Haojie D, Shuo T, Liuyun J, Bingli M, Yue W, Na Z, Liping S, Shengpei S. A combined-modification method of carboxymethyl β-cyclodextrin and lignin for nano-hydroxyapatite to reinforce poly(lactide-co-glycolide) for bone materials. Int J Biol Macromol 2020; 160:142-152. [PMID: 32450324 DOI: 10.1016/j.ijbiomac.2020.05.142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/16/2020] [Accepted: 05/18/2020] [Indexed: 02/06/2023]
Abstract
Lignin is the second most abundant natural biomacromolecule. A new surface-modification for nano-hydroxyapatite (n-HA) by carboxymethyl β-cyclodextrin (CM-β-CD) and lignin and its reinforce effect for poly(lactide-co-glycolide) (PLGA) were investigated by Fourier transformation infrared (FTIR), X-ray diffraction pattern (XRD), transmission electron microscopy (TEM), thermal gravimetric analysis (TGA), dispersion images, the tensile tests, scanning electron microscope (SEM), differential scanning calorimeter (DSC) and polarized optical microscopy (POM), compared to the singled-modification of CM-β-CD or lignin. The results showed that the appropriate combined-modified n-HA displayed excellent synergistic effects for increasing the dispersion, yielding good interfacial bonding between n-HA with PLGA matrix. The tensile strength of the composite was still 14.53% higher than that of PLGA, for a n-HA addition amount of 15 wt%, which was significantly better than that for the singled-modified n-HA. Additionally, in vitro degradation behavior was evaluated by soaking in simulated body fluid (SBF), and their cell response was carried out by interaction tests with bone mesenchymal stem cells. The results indicated that the combined-modification method promoted good degradation behavior and apatite deposition, as well as excellent cell biocompatibility. This study may offer an important guidance to obtain PLGA-based composites reinforced by surface-modified n-HA as bone materials.
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Affiliation(s)
- Tang Chunyan
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Ding Haojie
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Tang Shuo
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Jiang Liuyun
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China.
| | - Ma Bingli
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Wen Yue
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Zhang Na
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Sheng Liping
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
| | - Su Shengpei
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Sustainable Resources Processing and Advanced Materials, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China; Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education, China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China
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15
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Yi WJ, Qiu ZS, He H, Liu B, Wang M, Jiang M, Chao ZS, Li LJ, Shen YY, Shen Y. Introduction of an interface layer on hydroxyapatite whisker/poly(L-lactide) composite and its contribution for improved bioactivity and mechanical properties. NANOTECHNOLOGY 2020; 31:235703. [PMID: 32059208 DOI: 10.1088/1361-6528/ab767c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A hydroxyapatite whisker (w-HA) was synthesized via dissolution-precipitation by forming calcium-ethylene diamine tetra acetic acid (Ca-EDTA) complexing. The hydroxyapatite whisker was formed with precipitation of Ca2+ along the c-axis due to the space inhibition of Ca-EDTA complex during refluxing. The op-w-HA (oligomeric poly(lactic acid) modified w-HA), p-w-HA (poly(L-lactide) modified w-HA) and pc-w-HA (poly(L-lactide) and cyclodextrin modified w-HA) were obtained via the surface modification of w-HA. The particle size, surface charge and biocompatibility of theses modified w-HA particles were successfully adjusted. Among these materials, pc-w-HA exhibited nearly no toxicity, better adhesion to mesenchymal stem cells (MSCs) (5 times better than w-HA) and greater osteoinductivity among the obtained materials (40% of mineralized extracellular matrix higher than w-HA) due to better surface properties. Different kinds of powders (w-HA, p-w-HA and pc-w-HA) were blended with PLLA (poly(L-Lactide)) to form a composite material, respectively. The pc-w-HA/PLLA composite showed better mechanical properties (tensile strength of the pc-w-HA/PLLA composite was 22.3% higher than that of w-HA/PLLA), which could be attributed to mainly two factors including the structure preservation of w-HA bundles and pseudorotaxane linkage between PLA-cyclodextrin and PLLA. The MSCs adhesion of the pc-w-HA/PLLA composite was much better due to balanced hydrophilicity/hydrophobicity and surface roughness. This surface modification method could provide a new and effective strategy for the preparation of bioresorbable composite material with great bioactivity and mechanical property, which has great potential in the medical device industry.
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Affiliation(s)
- Wen-Jun Yi
- College of Materials Science and Engineering, Changsha University of Science &Technology, Changsha, Hunan 410082, People's Republic of China
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16
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Wang M, Wang X, Zhang K, Wu M, Wu Q, Liu J, Yang J, Zhang J. Nano-Hydroxyapatite Particle Brushes via Direct Initiator Tethering and Surface-Initiated Atom Transfer Radical Polymerization for Dual Responsive Pickering Emulsion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:1192-1200. [PMID: 31955570 DOI: 10.1021/acs.langmuir.9b02790] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Well-defined polymer-grafted solid inorganic nanoparticles (NPs) are imperative for practical applications in various fields based on the prerequisite of facile initiator immobilization. Direct atom transfer radical polymerization (ATRP) initiator-tethered solid NPs are described using 2-bromo-2-methylpropionic acid as a tetherable initiator. To illustrate the versatility of the proposed strategy, nano-hydroxyapatite (n-HAP) nanocrystals (NCs) were selected to demonstrate the morphology-controlled synthesis of 2-bromo-2-methylpropionate (2-BrMP) group-immobilized n-HAP (n-HAP-Br) NCs. When water was employed as the sole solvent, the continually introduced 2-BrMP groups altered the surface hydrophobic capacity of the n-HAP-Br NC and thus led to unavoidable aggregation of n-HAP-Br NCs. The synthesis of individually dispersed n-HAP-Br NCs was achieved by rational adjusting polarity of the aqueous medium through adding a portion of water-miscible organic solvents. The type and concentration of added water-miscible organic solvents had critical effects on the morphology and particle size of n-HAP-Br NCs. To verify the efficiency of the tethered initiator, n-HAP-g-poly2-(dimethylamino) ethyl methacrylate (n-HAP-g-PDMAEMA), n-HAP-g-polyacrylonitrile (n-HAP-g-PAN), and n-HAP-g-polymethyl methacrylate (n-HAP-g-PMMA) were fabricated by surface-initiated ATRP (SI-ATRP). Acting as a solid particle emulsifier, the designed n-HAP-g-PDMAEMA-stabilized Pickering emulsion displayed dual pH and temperature response with reversible behaviors. This work presents a versatile and simple way for the fabrication of initiator-immobilized solid NPs (e.g., n-HAP NCs, gibbsite nanoplatelets, and γ-FeOOH nanofibers) ready for polymer grafting and thus enables promising performance in widespread applications.
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Affiliation(s)
- Miaomiao Wang
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
| | - Xiao Wang
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
| | - Kangmin Zhang
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
| | - Mingyuan Wu
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials , Anhui University , Hefei 230601 , China
| | - Qingyun Wu
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials , Anhui University , Hefei 230601 , China
| | - Jiuyi Liu
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials , Anhui University , Hefei 230601 , China
| | - Jianjun Yang
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials , Anhui University , Hefei 230601 , China
| | - Jianan Zhang
- School of Chemistry and Chemical Engineering , Anhui University , Hefei 230601 , China
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials , Anhui University , Hefei 230601 , China
- Institute of Physical Science and Information Technology , Anhui University , Hefei 230601 , China
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17
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Shuai C, Yu L, Yang W, Peng S, Zhong Y, Feng P. Phosphonic Acid Coupling Agent Modification of HAP Nanoparticles: Interfacial Effects in PLLA/HAP Bone Scaffold. Polymers (Basel) 2020; 12:E199. [PMID: 31940986 PMCID: PMC7023562 DOI: 10.3390/polym12010199] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 11/16/2022] Open
Abstract
In order to improve the interfacial bonding between hydroxyapatite (HAP) and poly-l-lactic acid (PLLA), 2-Carboxyethylphosphonic acid (CEPA), a phosphonic acid coupling agent, was introduced to modify HAP nanoparticles. After this. the PLLA scaffold containing CEPA-modified HAP (C-HAP) was fabricated by selective laser sintering (frittage). The specific mechanism of interfacial bonding was that the PO32- of CEPA formed an electrovalent bond with the Ca2+ of HAP on one hand, and on the other hand, the -COOH of CEPA formed an ester bond with the -OH of PLLA via an esterification reaction. The results showed that C-HAP was homogeneously dispersed in the PLLA matrix and that it exhibited interconnected morphology pulled out from the PLLA matrix due to the enhanced interfacial bonding. As a result, the tensile strength and modulus of the scaffold with 20% C-HAP increased by 1.40 and 2.79 times compared to that of the scaffold with HAP, respectively. In addition, the scaffold could attract Ca2+ in simulated body fluid (SBF) solution by the phosphonic acid group to induce apatite layer formation and also release Ca2+ and PO43- by degradation to facilitate cell attachment, growth and proliferation.
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Affiliation(s)
- Cijun Shuai
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
- Institute of Bioadditive Manufacturing, Jiangxi University of Science and Technology, Nanchang 330013, China
| | - Li Yu
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Wenjing Yang
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
| | - Shuping Peng
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Yancheng Zhong
- Cancer Research Institute, School of Basic Medical Sciences, Central South University, Changsha 410013, China
| | - Pei Feng
- State Key Laboratory of High Performance Complex Manufacturing, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China
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18
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Haojie D, Liuyun J, Bingli M, Shengpei S, Shuo T, Chunyan T, Jinghui W, Zhiwei L, Xiang H. Synthesis of a novel co-hybridization nano-apatite powder with excellent dispersion, well-solubility and good biocompatibility by a new strategy. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2018.11.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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19
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Kouhi M, Fathi M, Jayarama Reddy V, Ramakrishna S. Bredigite Reinforced Electrospun Nanofibers for Bone Tissue Engineering. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.matpr.2018.11.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Kouhi M, Jayarama Reddy V, Ramakrishna S. GPTMS-Modified Bredigite/PHBV Nanofibrous Bone Scaffolds with Enhanced Mechanical and Biological Properties. Appl Biochem Biotechnol 2018; 188:357-368. [PMID: 30456599 DOI: 10.1007/s12010-018-2922-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 11/05/2018] [Indexed: 01/20/2023]
Abstract
Bioceramic nanoparticles with high specific surface area often tend to agglomerate in the polymer matrix, which results in undesirable mechanical properties of the composites and poor cell spreading and attachment. In the present work, bredigite (BR) nanoparticles were modified with an organosilane coupling agent, 3-glycidoxypropyltrimethoxysilane (GPTMS), to enhance its dispersibility in the polymer matrix. The polyhydroxybutyrate-co-hydroxyvaletare (PHBV) nanofibrous scaffolds containing either bredigite or GPTMS-modified bredigite (G-BR) nanoparticles were fabricated using electrospinning technique and characterized using scanning electron microscopy, transmission electron microscopy, and tensile strength. Results demonstrated that modification of bredigite was effective in enhancing nanoparticle dispersion in the PHBV matrix. PHBV/G-BR scaffold showed improved mechanical properties compared to PHBV and PHBV/BR, especially at the higher concentration of nanoparticles. In vitro bioactivity assay performed in the simulated body fluid (SBF) indicated that composite PHBV scaffolds were able to induce the formation of apatite deposits after incubation in SBF. From the results of in vitro biological assay, it is concluded that the synergetic effect of BR and GPTMS provided an enhanced hFob cells attachment and proliferation. The developed PHBV/G-BR nanofibrous scaffolds may be considered for application in bone tissue engineering.
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Affiliation(s)
- Monireh Kouhi
- Biomaterials Research Group, Department of Materials Engineering, Isfahan University of Technology, Isfahan, 8415683111, Iran. .,Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore.
| | - Venugopal Jayarama Reddy
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore.,Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang, 26300, Gambang, Kuantan, Pahang, Malaysia
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, 117576, Singapore
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21
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Poly(l-lactide)/cyclodextrin/citrate networks modified hydroxyapatite and its role as filler in the promotion to the properties of poly(l-lactide) biomaterials. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.04.034] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hydroxyapatite nanobelt/polylactic acid Janus membrane with osteoinduction/barrier dual functions for precise bone defect repair. Acta Biomater 2018. [PMID: 29524672 DOI: 10.1016/j.actbio.2018.02.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Controllable osteoinduction maintained in the original defect area is the key to precise bone repair. To meet the requirement of precise bone regeneration, a hydroxyapatite (HAp) nanobelt/polylactic acid (PLA) (HAp/PLA) Janus membrane has been successfully prepared in this study by coating PLA on a paper-like HAp nanobelt film by a casting-pervaporation method. The Janus membrane possesses dual functions: excellent osteoinduction from the hydrophilic HAp nanobelt side and barrier function originating from the hydrophobic PLA film. The cell viability and osteogenic differentiation ability of human adipose-derived stem cells (hADSCs) on the Janus membrane were assessed. The in vitro experimental results prove that the HAp nanobelt side presents high cell viability and efficient osteoinduction without any growth factor and that the PLA side can prohibit cell attachment. The in vivo repair experiments on a rat mandible defect model prove that the PLA side can prevent postoperative adhesion between bone and adjacent soft tissues. Most importantly, the HAp side has a strong ability to promote defect repair and bone regeneration. Therefore, the HAp/PLA Janus membrane will have wide applications as a kind of tissue engineering material in precise bone repair because of its unique dual osteoinduction/barrier functions, biocompatibility, low cost, and its ability to be mass-produced. STATE OF SIGNIFICANCE Precise bone defect repair to keeping tissue integrity and original outline shape is a very important issue for tissue engineering. Here, we have designed and prepared a novel HAp/PLA Janus membrane using a casting-pervaporation method to form a layer of PLA film on paper-like HAp nanobelt film. HAp nanobelt side of the Janus membrane can successfully promote osteogenic differentiation. PLA side of the Janus membrane exhibits good properties as a barrier for preventing the adhesion of cells in vitro. Mandible repair experiments in vivo have shown that the HAp/PLA Janus membrane can promote rat mandible repair on the HAp side and can successfully prevent postoperative adhesion on the PLA side at the same time. Therefore, the HAp/PLA Janus membrane with its osteoinduction/barrier dual functions can be applied to repair bone defect precisely.
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23
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Poly(L-lactide) nanocomposites containing poly(D-lactide) grafted nanohydroxyapatite with improved interfacial adhesion via stereocomplexation. J Mech Behav Biomed Mater 2018; 78:10-19. [DOI: 10.1016/j.jmbbm.2017.10.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/24/2017] [Accepted: 10/30/2017] [Indexed: 01/27/2023]
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24
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Yi WJ, Li LJ, He H, Hao Z, Liu B, Chao ZS, Shen Y. Synthesis of poly(l-lactide)/β-cyclodextrin/citrate network modified hydroxyapatite and its biomedical properties. NEW J CHEM 2018. [DOI: 10.1039/c8nj01194j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PLA/β-CD/citrate network modified HA possesses a tailored surface and smaller particle size, thus showing great cell adhesion performance and osteoinductivity to the MSCs of Wistar rats.
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Affiliation(s)
- Wen-Jun Yi
- College of Materials Science and Engineering
- Changsha University of Science & Technology
- Changsha
- P. R. China
- College of Chemistry and Chemical Engineering
| | - Li-Jun Li
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
| | - Hao He
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha
- China
| | - Zhen Hao
- College of Materials Science and Engineering
- Changsha University of Science & Technology
- Changsha
- P. R. China
| | - Bo Liu
- College of Materials Science and Engineering
- Changsha University of Science & Technology
- Changsha
- P. R. China
| | - Zi-Sheng Chao
- College of Materials Science and Engineering
- Changsha University of Science & Technology
- Changsha
- P. R. China
- College of Chemistry and Chemical Engineering
| | - Yi Shen
- Department of Orthopaedic
- The Second Xiangya Hospital of Central South University
- Changsha
- P. R. China
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25
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Syusyukina VA, Shapovalova Y, Korotchenko NM, Kurzina IA. Structural-phase state and surface properties of composite materials based on polylactide and hydroxyapatite. RUSS J APPL CHEM+ 2017. [DOI: 10.1134/s1070427217010165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Loiola LMD, Fasce LA, da Silva LCE, Gonçalves MC, Frontini PM, Felisberti MI. Thermal and mechanical properties of nanocomposites based on a PLLA-b
-PEO-b
-PLLA triblock copolymer and nanohydroxyapatite. J Appl Polym Sci 2016. [DOI: 10.1002/app.44187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lívia M. D. Loiola
- Institute of Chemistry, University of Campinas (UNICAMP); P.O. Box 6154, 13083-970 Campinas São Paulo Brazil
| | - Laura A. Fasce
- Universidad Nacional De Mar Del Plata, Instituto De Investigaciones En Ciencia Y Tecnología De Materiales; INTEMA, J.B. Justo 4302 - B7608 FDQ - Mar Del Plata Argentina
| | - Laura C. E. da Silva
- Institute of Chemistry, University of Campinas (UNICAMP); P.O. Box 6154, 13083-970 Campinas São Paulo Brazil
| | - Maria C. Gonçalves
- Institute of Chemistry, University of Campinas (UNICAMP); P.O. Box 6154, 13083-970 Campinas São Paulo Brazil
| | - Patricia M. Frontini
- Universidad Nacional De Mar Del Plata, Instituto De Investigaciones En Ciencia Y Tecnología De Materiales; INTEMA, J.B. Justo 4302 - B7608 FDQ - Mar Del Plata Argentina
| | - Maria I. Felisberti
- Institute of Chemistry, University of Campinas (UNICAMP); P.O. Box 6154, 13083-970 Campinas São Paulo Brazil
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27
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Dai J, Yang S, Jin J, Li G. Electrospinning of PLA/pearl powder nanofibrous scaffold for bone tissue engineering. RSC Adv 2016. [DOI: 10.1039/c6ra21796f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Natural pearl powder was proved a promising biomaterial for bone tissue engineering, PLA/pearl powder nanofibrous scaffold was prepared via electrospun to improve the weak biocompatibility and mineralization ability of PLA.
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Affiliation(s)
- Jiamu Dai
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Shenglin Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Junhong Jin
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
| | - Guang Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
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28
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Development of reinforced polylactide composite resin for micro surgery bone plate and screw. Macromol Res 2015. [DOI: 10.1007/s13233-016-4003-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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29
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Sun H, Ai M, Zhu S, Jia X, Cai Q, Yang X. Polylactide–hydroxyapatite nanocomposites with highly improved interfacial adhesion via mussel-inspired polydopamine surface modification. RSC Adv 2015. [DOI: 10.1039/c5ra21010k] [Citation(s) in RCA: 18] [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 interfacial bonding between inorganic hydroxyapatite and organic polylactide could be significantly improved by introducing polydopamine surface coating on hydroxyapatite.
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Affiliation(s)
- Hongyang Sun
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Miao Ai
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Siqi Zhu
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xiaolong Jia
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
- Beijing Laboratory of Biomedical Materials
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
- Beijing Laboratory of Biomedical Materials
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30
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Naffakh M, Díez-Pascual AM. WS2 inorganic nanotubes reinforced poly(l-lactic acid)/hydroxyapatite hybrid composite biomaterials. RSC Adv 2015. [DOI: 10.1039/c5ra10707e] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This study confirms the potential use of WS2 inorganic nanotubes to prepare a novel PLLA/HA hybrid nanocomposite for biomedical applications.
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Affiliation(s)
- Mohammed Naffakh
- Escuela Técnica Superior de Ingenieros Industriales
- Universidad Politécnica de Madrid (ETSII-UPM)
- 28006 Madrid
- Spain
| | - Ana M. Díez-Pascual
- Departamento de Química Analítica
- Química Física e Ingeniería Química
- Facultad de Biología
- Ciencias Ambientales y Química
- Universidad de Alcalá
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31
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Mi HY, Salick MR, Jing X, Jacques BR, Crone WC, Peng XF, Turng LS. Characterization of thermoplastic polyurethane/polylactic acid (TPU/PLA) tissue engineering scaffolds fabricated by microcellular injection molding. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4767-76. [PMID: 24094186 PMCID: PMC4554542 DOI: 10.1016/j.msec.2013.07.037] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2012] [Revised: 06/17/2013] [Accepted: 07/25/2013] [Indexed: 11/19/2022]
Abstract
Polylactic acid (PLA) and thermoplastic polyurethane (TPU) are two kinds of biocompatible and biodegradable polymers that can be used in biomedical applications. PLA has rigid mechanical properties while TPU possesses flexible mechanical properties. Blended TPU/PLA tissue engineering scaffolds at different ratios for tunable properties were fabricated via twin screw extrusion and microcellular injection molding techniques for the first time. Multiple test methods were used to characterize these materials. Fourier transform infrared spectroscopy (FTIR) confirmed the existence of the two components in the blends; differential scanning calorimetry (DSC) and dynamic mechanical analysis (DMA) confirmed the immiscibility between the TPU and PLA. Scanning electron microscopy (SEM) images verified that, at the composition ratios studied, PLA was dispersed as spheres or islands inside the TPU matrix and that this phase morphology further influenced the scaffold's microstructure and surface roughness. The blends exhibited a large range of mechanical properties that covered several human tissue requirements. 3T3 fibroblast cell culture showed that the scaffolds supported cell proliferation and migration properly. Most importantly, this study demonstrated the feasibility of mass producing biocompatible PLA/TPU scaffolds with tunable microstructures, surface roughnesses, and mechanical properties that have the potential to be used as artificial scaffolds in multiple tissue engineering applications.
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Affiliation(s)
- Hao-Yang Mi
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
| | - Max R. Salick
- Department of Engineering Physics, University of Wisconsin–Madison, WI, USA
| | - Xin Jing
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
| | | | - Wendy C. Crone
- Department of Engineering Physics, University of Wisconsin–Madison, WI, USA
| | - Xiang-Fang Peng
- National Engineering Research Center of Novel Equipment for Polymer Processing, South China University of Technology, Guangzhou, China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA
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32
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Guo YJ, Wang YY, Chen T, Wei YT, Chu LF, Guo YP. Hollow carbonated hydroxyapatite microspheres with mesoporous structure: Hydrothermal fabrication and drug delivery property. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3166-72. [DOI: 10.1016/j.msec.2013.03.040] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 03/03/2013] [Accepted: 03/23/2013] [Indexed: 10/27/2022]
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33
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Khan F, Ahmad SR. Bioactive Polymers and Nanobiomaterials Composites for Bone Tissue Engineering. Biomimetics (Basel) 2013. [DOI: 10.1002/9781118810408.ch5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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34
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Fan RR, Zhou LX, Song W, Li DX, Zhang DM, Ye R, Zheng Y, Guo G. Preparation and properties of g-TTCP/PBS nanocomposites and its in vitro biocompatibility assay. Int J Biol Macromol 2013; 59:227-34. [PMID: 23624285 DOI: 10.1016/j.ijbiomac.2013.04.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 04/07/2013] [Accepted: 04/16/2013] [Indexed: 02/05/2023]
Abstract
In an effort to decrease the aggregation of tetracalcium phosphate (TTCP, Ca4(PO4)2O) in composites and develop better bone substitute materials, a series of poly(l-lactic acid) (PLLA)-grafted TTCP (g-TTCP) particles were prepared by a ring-opening polymerization with l-lactide (the monomer for synthesizing PLLA) in the presence of catalyst stannous octoate [Sn(Oct)2]. The g-TTCP/poly(1,4-butylene succinate) (PBS) composites with the different g-TTCP contents were prepared via melting processing. The bonding between the PLLA and the TTCP particles was analyzed by FTIR, TG, (1)H NMR and XPS. The results confirmed that the PLLA was grafted on the surface of the TTCP particles. Time-dependent phase monitoring indicated that the g-TTCP had enhanced dispersion in the PBS solution. Water contact angle measurement and cell culture were also used to investigate the properties of the g-TTCP/PBS composites. The g-TTCP in composites provided more favorable environments for rat osteoblast to attach and grow on the surface of the g-TTCP/PBS composites. Cell proliferated well in the extracted solution of the g-TTCP/PBS composites with different g-TTCP content, and there was no necrotic or suspended cells appeared.
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Affiliation(s)
- Rang Rang Fan
- State Key Laboratory of Biotherapy and Cancer Center, Department of Neurosurgery, West China Hospital, West China Medical School, Sichuan University, Chengdu 610041, PR China
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35
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Sadat-Shojai M, Khorasani MT, Jamshidi A, Irani S. Nano-hydroxyapatite reinforced polyhydroxybutyrate composites: a comprehensive study on the structural and in vitro biological properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:2776-87. [PMID: 23623096 DOI: 10.1016/j.msec.2013.02.041] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2012] [Accepted: 02/23/2013] [Indexed: 11/28/2022]
Abstract
Nanocomposites based on polyhydroxybutyrate (PHB) and hydroxyapatite (HAp) have recently been proposed for application in bone repair and regeneration, but very limited studies have investigated the effect of HAp on the rheological and thermal behavior of PHB. More important, the efficiency of a biomaterial depends greatly on its ability to interact with cells, but little is known about this interaction for this kind of nanocomposite. Hence, this paper dealt with some of the characteristics of solution-casted PHB/HAp nanocomposite films, and tried to explore the effect of HAp nanoparticles on cellular responses. The results showed that both rheological and thermal properties can be tailored by incorporating appropriate amounts of nanoparticles. In vitro studies showed a significant increase in proliferation and differentiation of MC3T3-E1 on nanocomposites compared to the neat polymer. Surface examination indicated that topography and chemistry of surface are important factors influencing cellular processes; while no cell differentiation was found on the neat polymer, nanocomposite with 15 wt.% filler content exhibited a pronounced differentiation resulting from high surface roughness and large amount of exposed HAp. These results suggest that HAp particles play a much more important role in determining the biological performance of PHB than has previously been supposed.
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Affiliation(s)
- Mehdi Sadat-Shojai
- Department of Biomaterials, Iran Polymer and Petrochemical Institute, P.O. Box 14965/115, Tehran, Iran.
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