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Wu Y, She Y, Yan Z, Chen S, Wang J, Dong A, Wang J, Liu R. Facile Construction of Antimicrobial Surface via One-Step Co-Deposition of Peptide Polymer and Dopamine. Macromol Biosci 2024; 24:e2300327. [PMID: 37714144 DOI: 10.1002/mabi.202300327] [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: 07/14/2023] [Revised: 08/31/2023] [Indexed: 09/17/2023]
Abstract
The infections associated with implantable medical devices can greatly affect the therapeutic effect and impose a heavy financial burden. Therefore, it is of great significance to develop antimicrobial biomaterials for the prevention and mitigation of healthcare-associated infections. Here, a facile construction of antimicrobial surface via one-step co-deposition of peptide polymer and dopamine is reported. The co-deposition of antimicrobial peptide polymer DLL60 BLG40 with dopamine (DA) on the surface of thermoplastic polyurethane (TPU) provides peptide polymer-modified TPU surface (TPU-DLL60 BLG40 ). The antimicrobial test shows that the TPU-DLL60 BLG40 surfaces of the sheet and the catheter both exhibit potent killing of 99.9% of methicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli). In addition, the TPU-DLL60 BLG40 surface also exhibits excellent biocompatibility. This one-step antimicrobial modification method is fast and efficient, implies promising application in surface antimicrobial modification of implantable biomaterials and medical devices.
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Affiliation(s)
- Yueming Wu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yunrui She
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zi Yan
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Sheng Chen
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiangzhou Wang
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Alideertu Dong
- Engineering Research Center of Dairy Quality and Safety Control Technology, Ministry of Education, Inner Mongolia University, Hohhot, 010021, China
| | - Jing Wang
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Runhui Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Frontiers Science Center for Materiobiology and Dynamic Chemistry, Key Laboratory for Ultrafine Materials of Ministry of Education, Shanghai Frontier Science Research Base of Optogenetic Techniques for Cell Metabolism, Research Center for Biomedical Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
- East China University of Science and Technology Shenzhen Research Institute, Shenzhen, 518063, China
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Han Y, Dal-Fabbro R, Mahmoud AH, Rahimnejad M, Xu J, Castilho M, Dissanayaka WL, Bottino MC. GelMA/TCP nanocomposite scaffold for vital pulp therapy. Acta Biomater 2024; 173:495-508. [PMID: 37939819 PMCID: PMC10964899 DOI: 10.1016/j.actbio.2023.11.005] [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: 08/11/2023] [Revised: 10/11/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023]
Abstract
Pulp capping is a necessary procedure for preserving the vitality and health of the dental pulp, playing a crucial role in preventing the need for root canal treatment or tooth extraction. Here, we developed an electrospun gelatin methacryloyl (GelMA) fibrous scaffold incorporating beta-tricalcium phosphate (TCP) particles for pulp capping. A comprehensive morphological, physical-chemical, and mechanical characterization of the engineered fibrous scaffolds was performed. In vitro bioactivity, cell compatibility, and odontogenic differentiation potential of the scaffolds in dental pulp stem cells (DPSCs) were also evaluated. A pre-clinical in vivo model was used to determine the therapeutic role of the GelMA/TCP scaffolds in promoting hard tissue formation. Morphological, chemical, and thermal analyses confirmed effective TCP incorporation in the GelMA nanofibers. The GelMA+20%TCP nanofibrous scaffold exhibited bead-free morphology and suitable mechanical and degradation properties. In vitro, GelMA+20%TCP scaffolds supported apatite-like formation, improved cell spreading, and increased deposition of mineralization nodules. Gene expression analysis revealed upregulation of ALPL, RUNX2, COL1A1, and DMP1 in the presence of TCP-laden scaffolds. In vivo, analyses showed mild inflammatory reaction upon scaffolds' contact while supporting mineralized tissue formation. Although the levels of Nestin and DMP1 proteins did not exceed those associated with the clinical reference treatment (i.e., mineral trioxide aggregate), the GelMA+20%TCP scaffold exhibited comparable levels, thus suggesting the emergence of differentiated odontoblast-like cells capable of dentin matrix secretion. Our innovative GelMA/TCP scaffold represents a simplified and efficient alternative to conventional pulp-capping biomaterials. STATEMENT OF SIGNIFICANCE: Vital pulp therapy (VPT) aims to preserve dental pulp vitality and avoid root canal treatment. Biomaterials that bolster mineralized tissue regeneration with ease of use are still lacking. We successfully engineered gelatin methacryloyl (GelMA) electrospun scaffolds incorporated with beta-tricalcium phosphate (TCP) for VPT. Notably, electrospun GelMA-based scaffolds containing 20% (w/v) of TCP exhibited favorable mechanical properties and degradation, cytocompatibility, and mineralization potential indicated by apatite-like structures in vitro and mineralized tissue deposition in vivo, although not surpassing those associated with the standard of care. Collectively, our innovative GelMA/TCP scaffold represents a simplified alternative to conventional pulp capping materials such as MTA and Biodentine™ since it is a ready-to-use biomaterial, requires no setting time, and is therapeutically effective.
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Affiliation(s)
- Yuanyuan Han
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States; Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Renan Dal-Fabbro
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Abdel H Mahmoud
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Maedeh Rahimnejad
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Jinping Xu
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
| | - Miguel Castilho
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands; Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Waruna L Dissanayaka
- Applied Oral Sciences and Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Marco C Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, United States; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, MI, United States.
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Venegas-Cervera GA, Oliva AI, Avila-Ortega A, Cervantes-Uc JM, Carrillo-Cocom LM, Juarez-Moreno JA. Biocompatibility studies of polyurethane electrospun membranes based on arginine as chain extender. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:104. [PMID: 34417669 PMCID: PMC8379123 DOI: 10.1007/s10856-021-06581-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Electrospun polymers are an example of multi-functional biomaterials that improve the material-cellular interaction and aimed at enhancing wound healing. The main objective of this work is to fabricate electrospun polyurethane membranes using arginine as chain extender (PUUR) in order to test the fibroblasts affinity and adhesion on the material and the polymer toxicity. Polyurethane membranes were prepared in two steps: (i) the polyurethane synthesis, and ii) the electrospinning process. The membranes were characterized by scanning electron microscopy (SEM), Fourier transforms infrared spectroscopy, gel permeation chromatography, and differential scanning calorimetry techniques. The evaluation of PUUR as a scaffolding biomaterial for growing and developing of cells on the material was realized by LIVE/DEAD staining. The results show that the fluorescent surface area of human fibroblasts (hFB), was greater in control dense membranes made from Tecoflex than in electrospun and dense PUUR. From SEM analysis, the electrospun membranes show relatively uniform attachment of cells with a well-spread shape, while Tecoflex dense membranes show a non-proliferating round shape, which is attributed to the fiber's structure in electrospun membranes. The cell morphology and the cell attachment assay results reveal the well spreading of hFB cells on the surface of electrospun PUUR membranes which indicates a good response related to cell adhesion.
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Affiliation(s)
- Georgina Alejandra Venegas-Cervera
- Facultad de Ingeniería Química, Periférico Norte Kilómetro 33.5, Universidad Autónoma de Yucatán, Col. Chuburná de Hidalgo Inn, C.P. 97203, Mérida, Yucatán, México
| | - Andrés Iván Oliva
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Mérida, Depto. de Física Aplicada, Km. 6 Antigua Carretera a Progreso A.P. 73, Cordemex, C.P. 97310, Mérida, Yucatán, México
| | - Alejandro Avila-Ortega
- Facultad de Ingeniería Química, Periférico Norte Kilómetro 33.5, Universidad Autónoma de Yucatán, Col. Chuburná de Hidalgo Inn, C.P. 97203, Mérida, Yucatán, México
| | - José Manuel Cervantes-Uc
- Centro de Investigación Científica de Yucatán, A.C., Unidad de Materiales, Calle 43 No. 130 x32y 34, Col. Chuburná de Hidalgo, C.P. 97205, Mérida, Yucatán, México
| | - Leydi Maribel Carrillo-Cocom
- Facultad de Ingeniería Química, Periférico Norte Kilómetro 33.5, Universidad Autónoma de Yucatán, Col. Chuburná de Hidalgo Inn, C.P. 97203, Mérida, Yucatán, México
| | - Juan Antonio Juarez-Moreno
- Facultad de Ingeniería Química, Periférico Norte Kilómetro 33.5, Universidad Autónoma de Yucatán, Col. Chuburná de Hidalgo Inn, C.P. 97203, Mérida, Yucatán, México.
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Martínez-Moreno D, Jiménez G, Chocarro-Wrona C, Carrillo E, Montañez E, Galocha-León C, Clares-Naveros B, Gálvez-Martín P, Rus G, de Vicente J, Marchal JA. Pore geometry influences growth and cell adhesion of infrapatellar mesenchymal stem cells in biofabricated 3D thermoplastic scaffolds useful for cartilage tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111933. [PMID: 33641924 DOI: 10.1016/j.msec.2021.111933] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 12/24/2022]
Abstract
The most pressing need in cartilage tissue engineering (CTE) is the creation of a biomaterial capable to tailor the complex extracellular matrix of the tissue. Despite the standardized used of polycaprolactone (PCL) for osteochondral scaffolds, the pronounced stiffness mismatch between PCL scaffold and the tissue it replaces remarks the biomechanical incompatibility as main limitation. To overcome it, the present work was focused in the design and analysis of several geometries and pore sizes and how they affect cell adhesion and proliferation of infrapatellar fat pad-derived mesenchymal stem cells (IPFP-MSCs) loaded in biofabricated 3D thermoplastic scaffolds. A novel biomaterial for CTE, the 1,4-butanediol thermoplastic polyurethane (b-TPUe) together PCL were studied to compare their mechanical properties. Three different geometrical patterns were included: hexagonal (H), square (S), and, triangular (T); each one was printed with three different pore sizes (PS): 1, 1.5 and 2 mm. Results showed differences in cell adhesion, cell proliferation and mechanical properties depending on the geometry, porosity and type of biomaterial used. Finally, the microstructure of the two optimal geometries (T1.5 and T2) was deeply analyzed using multiaxial mechanical tests, with and without perimeters, μCT for microstructure analysis, DNA quantification and degradation assays. In conclusion, our results evidenced that IPFP-MSCs-loaded b-TPUe scaffolds had higher similarity with cartilage mechanics and T1.5 was the best adapted morphology for CTE.
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Affiliation(s)
- D Martínez-Moreno
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - G Jiménez
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - C Chocarro-Wrona
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - E Carrillo
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain
| | - E Montañez
- Department of Orthopedic Surgery and Traumatology, Virgen de la Victoria University Hospital, 29010 Málaga, Spain
| | - C Galocha-León
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - B Clares-Naveros
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada, Spain
| | - P Gálvez-Martín
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Granada, Spain; R&D Human Health, Bioibérica S.A.U., Barcelona E-08029, Spain
| | - G Rus
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain; Department of Structural Mechanics, University of Granada, Politécnico de Fuentenueva, Granada E-18071, Spain
| | - J de Vicente
- Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain; Department of Applied Physics, Faculty of Sciences, University of Granada, Granada, Spain.
| | - J A Marchal
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), University Hospitals of Granada-University of Granada, Granada, Spain; Biopathology and Regenerative Medicine Institute (IBIMER), Centre for Biomedical Research (CIBM), University of Granada, Granada, Spain; Department of Human Anatomy and Embryology, Faculty of Medicine, University of Granada, Granada, Spain; Excellence Research Unit "Modeling Nature" (MNat), University of Granada, Granada, Spain.
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Dehghan-Manshadi N, Fattahi S, Hadizadeh M, Nikukar H, Moshtaghioun SM, Aflatoonian B. The influence of elastomeric polyurethane type and ratio on the physicochemical properties of electrospun polyurethane/silk fibroin hybrid nanofibers as potential scaffolds for soft and hard tissue engineering. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.109294] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Mi HY, Jiang Y, Jing X, Enriquez E, Li H, Li Q, Turng LS. Fabrication of triple-layered vascular grafts composed of silk fibers, polyacrylamide hydrogel, and polyurethane nanofibers with biomimetic mechanical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:241-249. [DOI: 10.1016/j.msec.2018.12.126] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 12/09/2018] [Accepted: 12/28/2018] [Indexed: 12/21/2022]
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Jiang L, Jiang Y, Stiadle J, Wang X, Wang L, Li Q, Shen C, Thibeault SL, Turng LS. Electrospun nanofibrous thermoplastic polyurethane/poly(glycerol sebacate) hybrid scaffolds for vocal fold tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:740-749. [PMID: 30423760 PMCID: PMC6390294 DOI: 10.1016/j.msec.2018.10.027] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 08/14/2018] [Accepted: 10/04/2018] [Indexed: 01/17/2023]
Abstract
Vocal fold tissue engineering requires biomimetic scaffolds with an appropriate matrix stiffness closely matching that of the natural vocal folds to maintain function. Traditionally, poly(ɛ‑caprolactone) (PCL) and thermoplastic polyurethane (TPU) have been employed as the primary matrix materials for vocal fold electrospun scaffolds. However, not all of the scaffolds fabricated thus far matched the human vocal fold tissues. Poly(glycerol sebacate) (PGS) is a non-cytotoxic and biodegradable soft elastomer that has shown promising results for soft tissue engineering applications. However, no work has been done to employ this biomaterial to construct vocal fold scaffolds. In this study, PGS has been synthesized and blended with thermoplastic polyurethane (TPU) to produce vocal fold scaffolds with improved hydrophilicity and compliance by electrospinning. The resulting scaffolds were found to have mechanical properties mimicking those of the vocal fold lamina propria extracellular matrix (ECM). An unusual leaf-like structure was obtained when using 1,1,1,3,3,3‑hexafluoroisopropanol (HFIP) as the solvent. Other suitable fibrous scaffolds were also obtained when using acetic acid and 2,2,2‑trifluoroethanol (TFE) as binary solvents. A biological evaluation of these TPU/PGS scaffolds showed better cell spreading and significantly improved cell proliferation as compared to TPU-only scaffolds (p < 0.01), thereby suggesting potential applications for vocal fold tissue engineering.
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Affiliation(s)
- Lin Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China; School of Material Science and Engineering, Zhengzhou University, Zhengzhou, China; Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA
| | - Yongchao Jiang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China; Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA
| | - Jeanna Stiadle
- Departments of Surgery, University of Wisconsin-Madison, WI, USA
| | - Xiaofeng Wang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China
| | - Lixia Wang
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China
| | - Qian Li
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.
| | - Changyu Shen
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China
| | | | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin-Madison, WI, USA; Wisconsin Institute for Discovery, University of Wisconsin-Madison, WI, USA.
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Bahcecioglu G, Hasirci N, Hasirci V. Cell behavior on the alginate-coated PLLA/PLGA scaffolds. Int J Biol Macromol 2018; 124:444-450. [PMID: 30465840 DOI: 10.1016/j.ijbiomac.2018.11.169] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 10/27/2018] [Accepted: 11/17/2018] [Indexed: 12/21/2022]
Abstract
Here, we investigated the effect of preparation temperature and alginate-coating on L929 fibroblast behavior on lyophilized microporous PLLA/PLGA (95:5, w/w) scaffolds. The lower freezing temperature used during lyophilization (-80 °C) resulted in smaller pores (around 50 μm) and higher compressive modulus (1500 kPa) than those prepared at the higher temperature (-20 °C) (pore size: 120 μm, compressive modulus: 600 kPa) (p < 0.01). Cell proliferation was significantly lower on the alginate-coated scaffolds (p < 0.05), probably due to weak cell adhesion on alginate, rapid degradation/dissolution of the alginate hydrogel (40% weight loss after 2 weeks of incubation) (p < 0.05), which resulted in loss of material and cells, and the decrease in the pH (p < 0.05), which probably resulted in decreased cell metabolic activity. Cells tended to get less round on the scaffolds prepared at -20 °C, which had lower compressive modulus and larger pores, and upon coating with alginate, which resulted in a hydrophilic surface that had lower stiffness. When the scaffolds had closer stiffness to the cells, the cells tended to get more branched. The most branched morphology of the fibroblasts was obtained in the presence of alginate, a natural polymer having a similar stiffness with that of the L929 fibroblasts (4 kPa).
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Affiliation(s)
- Gokhan Bahcecioglu
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Department of Biological Sciences, METU, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey; Department of Chemistry, METU, Ankara, Turkey
| | - Vasif Hasirci
- BIOMATEN, Middle East Technical University (METU) Center of Excellence in Biomaterials and Tissue Engineering, Ankara, Turkey; Department of Biological Sciences, METU, Ankara, Turkey; Graduate Department of Biotechnology, METU, Ankara, Turkey; Department of Medical Engineering, Acibadem Mehmet Ali Aydinlar University, Atasehir, Istanbul, Turkey.
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9
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Li Y, Zhang C, Zhu L, Ahmad Z, Li J, Chang M. Elastic antibacterial membranes comprising particulate laden fibers for wound healing applications. J Appl Polym Sci 2018. [DOI: 10.1002/app.47105] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Y. Li
- Key Laboratory for Biomedical Engineering of Education Ministry of ChinaZhejiang University Hangzhou 310027 People's Republic of China
| | - C. Zhang
- Key Laboratory for Biomedical Engineering of Education Ministry of ChinaZhejiang University Hangzhou 310027 People's Republic of China
- Zhejiang Provincial Key Laboratory of Cardio‐Cerebral Vascular Detection Technology and Medicinal Effectiveness AppraisalZhejiang University Hangzhou 310027 People's Republic of China
| | - L.‐F. Zhu
- Key Laboratory for Biomedical Engineering of Education Ministry of ChinaZhejiang University Hangzhou 310027 People's Republic of China
- Zhejiang Provincial Key Laboratory of Cardio‐Cerebral Vascular Detection Technology and Medicinal Effectiveness AppraisalZhejiang University Hangzhou 310027 People's Republic of China
| | - Z. Ahmad
- Leicester School of PharmacyDe Montfort University, The Gateway Leicester LE1 9BH United Kingdom
| | - J.‐S. Li
- Key Laboratory for Biomedical Engineering of Education Ministry of ChinaZhejiang University Hangzhou 310027 People's Republic of China
| | - M.‐W. Chang
- Key Laboratory for Biomedical Engineering of Education Ministry of ChinaZhejiang University Hangzhou 310027 People's Republic of China
- Zhejiang Provincial Key Laboratory of Cardio‐Cerebral Vascular Detection Technology and Medicinal Effectiveness AppraisalZhejiang University Hangzhou 310027 People's Republic of China
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Mi HY, Jing X, Yilmaz G, Hagerty BS, Enriquez E, Turng LS. In Situ Synthesis of Polyurethane Scaffolds with Tunable Properties by Controlled Crosslinking of Tri-Block Copolymer and Polycaprolactone Triol for Tissue Regeneration. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2018; 348:786-798. [PMID: 30455583 PMCID: PMC6238968 DOI: 10.1016/j.cej.2018.04.198] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Mimicking the mechanical properties of native tissues is a critical criterion for an ideal tissue engineering scaffold. However, most biodegradable synthetic materials, including polyester-based polyurethanes (PUs), consist of rigid polyester chains and have high crystallinity. They typically lack the elasticity of most human tissues. In this study, a new type of biodegradable PU with excellent elasticity was synthesized based on the controlled crosslinking of poly(ester ether) triblock copolymer diols and polycaprolactone (PCL) triols using urethane linkages. Three-dimensional (3D) porous scaffolds with a defined geometry, tunable microstructures, and adjustable mechanical properties were synthesized in situ using an isocyanate-ended copolymer, a tri-armed PCL, and a chain extender. The mechanical properties of the scaffolds can be easily tuned by changing the ratio of reactants, varying the solution concentration, or using a porogen. Notably, all of these scaffolds, although mostly made of rigid PCL chains, showed remarkable elasticity and cyclical properties. With an optimized molecular design, a maximum recovery rate of 99.8% was achieved. This was because the copolymer provided molecular flexibility while the long chain crosslinking of PCL triol hindered crystallization, thus making the PU behave like an amorphous elastic material. Moreover, the in vitro cell culture of 3T3 fibroblasts and MG63 osteoblast-like cells confirmed the biocompatibility of these PU scaffolds and revealed that scaffolds with different stiffnesses can stimulate the proliferation of different types of cells. All of these attributes make PU scaffolds extremely suitable for the regeneration of tissues that experience dynamic loading.
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Affiliation(s)
- Hao-Yang Mi
- Department of Mechanical Engineering University of Wisconsin–Madison, Madison, WI, 53706, USA
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou, 510640, China
- Wisconsin Institute for Discovery University of Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Xin Jing
- Department of Mechanical Engineering University of Wisconsin–Madison, Madison, WI, 53706, USA
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Galip Yilmaz
- Department of Mechanical Engineering University of Wisconsin–Madison, Madison, WI, 53706, USA
- Wisconsin Institute for Discovery University of Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Breanna S. Hagerty
- Wisconsin Institute for Discovery University of Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Eduardo Enriquez
- Wisconsin Institute for Discovery University of Wisconsin–Madison, Madison, Wisconsin, 53715, USA
| | - Lih-Sheng Turng
- Department of Mechanical Engineering University of Wisconsin–Madison, Madison, WI, 53706, USA
- Wisconsin Institute for Discovery University of Wisconsin–Madison, Madison, Wisconsin, 53715, USA
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11
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Yu E, Mi HY, Zhang J, Thomson JA, Turng LS. Development of biomimetic thermoplastic polyurethane/fibroin small-diameter vascular grafts via a novel electrospinning approach. J Biomed Mater Res A 2018; 106:985-996. [PMID: 29143442 PMCID: PMC5826852 DOI: 10.1002/jbm.a.36297] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/28/2017] [Accepted: 11/10/2017] [Indexed: 12/18/2022]
Abstract
A new electrospinning approach for fabricating vascular grafts with a layered, circumferentially aligned, and micro-wavy fibrous structure similar to natural elastic tissues has been developed. The customized electrospinning collector was able to generate wavy fibers using the dynamic "jump rope" collecting process, which also solved the sample removal problem for mandrel-type collectors. In this study, natural silk fibroin and synthetic thermoplastic polyurethane (TPU) were combined at different weight ratios to produce hybrid small-diameter vascular grafts. The purpose of combining these two materials was to leverage the bioactivity and tunable mechanical properties of these natural and synthetic materials. Results showed that the electrospun fiber morphology was highly influenced by the material compositions and solvents employed. All of the TPU/fibroin hybrid grafts had mechanical properties comparable to natural blood vessels. The circumferentially aligned and wavy biomimetic configuration provided the grafts with a sufficient toe region and the capacity for long-term usage under repeated dilatation and contraction. Cell culture tests with human endothelial cells (EC) also revealed high cell viability and good biocompatibility for these grafts. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 985-996, 2018.
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Affiliation(s)
- Emily Yu
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA, 53706
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, USA, 53715
| | - Hao-Yang Mi
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA, 53706
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, USA, 53715
- Department of Industrial Equipment and Control Engineering, South China University of Technology, Guangzhou, China
| | - Jue Zhang
- Morgridge Institute for Research, WI, USA, 53715
| | | | - Lih-Sheng Turng
- Department of Mechanical Engineering, University of Wisconsin–Madison, WI, USA, 53706
- Wisconsin Institute for Discovery, University of Wisconsin–Madison, WI, USA, 53715
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12
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Bahcecioglu G, Hasirci N, Hasirci V. Effects of microarchitecture and mechanical properties of 3D microporous PLLA-PLGA scaffolds on fibrochondrocyte and L929 fibroblast behavior. ACTA ACUST UNITED AC 2018; 13:035005. [PMID: 29334080 DOI: 10.1088/1748-605x/aaa77f] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
There are several reports studying cell behavior on surfaces in 2D or in hydrogels in 3D. However, cell behavior in 3D microporous scaffolds has not been investigated extensively. In this study, poly(L-lactic acid)/poly(lactic acid-co-glycolic acid) (PLLA/PLGA)-based microporous scaffolds were used to study the effects of scaffold microarchitecture and mechanical properties on the behavior of two different cell types, human meniscal fibrochondrocytes and L929 mouse fibroblasts. In general, cell attachment, spreading and proliferation rate were mainly regulated by the strut (pore wall) stiffness. Increasing strut stiffness resulted in an increase in L929 fibroblast attachment and a decrease in fibrochondrocyte attachment. L929 fibroblasts tended to get more round as the strut stiffness increased, while fibrochondrocytes tended to get more elongated. Cell migration increased for both cell types with the increasing pore size. Migrating L929 fibroblasts tended to get more round on the stiff scaffolds, while fibrochondrocytes tended to get more round on the soft scaffolds. This study shows that the behavior of cells on 3D microporous scaffolds is mainly regulated by pore size and strut stiffness, and the response of a cell depends on the stiffness of both cells and materials. This study could be useful in designing better scaffolds for tissue engineering applications.
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Affiliation(s)
- G Bahcecioglu
- BIOMATEN-METU Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, 06800 Ankara, Turkey. Department of Biotechnology, Middle East Technical University, 06800 Ankara, Turkey. Department of Biological Sciences, Middle East Technical University, 06800 Ankara, Turkey
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13
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Mi HY, Jing X, Yu E, Wang X, Li Q, Turng LS. Manipulating the structure and mechanical properties of thermoplastic polyurethane/polycaprolactone hybrid small diameter vascular scaffolds fabricated via electrospinning using an assembled rotating collector. J Mech Behav Biomed Mater 2018; 78:433-441. [DOI: 10.1016/j.jmbbm.2017.11.046] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/27/2017] [Accepted: 11/30/2017] [Indexed: 01/22/2023]
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14
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Drupitha MP, Naskar K, Nando GB. Compatibilized TPU-PDMS blends: Pros and cons of melt mixing and solution mixing techniques. J Appl Polym Sci 2017. [DOI: 10.1002/app.45164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- M. P. Drupitha
- Rubber Technology Centre; Indian Institute of Technology; Kharagpur West Bengal 721302 India
| | - Kinsuk Naskar
- Rubber Technology Centre; Indian Institute of Technology; Kharagpur West Bengal 721302 India
| | - Golok B. Nando
- Rubber Technology Centre; Indian Institute of Technology; Kharagpur West Bengal 721302 India
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15
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Yu E, Zhang J, Thomson JA, Turng LS. Fabrication and Characterization of Electrospun Thermoplastic Polyurethane/Fibroin Small-Diameter Vascular Grafts for Vascular Tissue Engineering. ACTA ACUST UNITED AC 2016; 31:638-646. [PMID: 29033499 DOI: 10.3139/217.3247] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The demand for small-diameter blood vessel substitutes has been increasing due to a shortage of autograft vessels and problems with thrombosis and intimal hyperplasia with synthetic grafts. In this study, hybrid small-diameter vascular grafts made of thermoplastic polyurethane (TPU) and silk fibroin, which possessed a hybrid fibrous structure of an aligned inner layer and a random outer layer, were fabricated by the electrospinning technique using a customized striated collector that generated both aligned and random fibers simultaneously. A methanol post-treatment process induced the transition of fibroin protein conformation from the water-soluble, amorphous, and less ordered structures to the water-insoluble β-sheet structures that possessed robust mechanical properties and relatively slow proteolytic degradation. The methanol post-treatment also created crimped fibers that mimicked the wavy structure of collagen fibers in natural blood vessels. Ultrafine nanofibers and nanowebs were found on the electrospun TPU/fibroin samples, which effectively increased the surface area for cell adhesion and migration. Cyclic circumferential tensile test results showed compatible mechanical properties for grafts made of a soft TPU/fibroin blend compared to human coronary arteries. In addition, cell culture tests with endothelial cells after 6 and 60 days of culture exhibited high cell viability and good biocompatibility of TPU/fibroin grafts, suggesting the potential of applying electrospun TPU/fibroin grafts in vascular tissue engineering.
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Affiliation(s)
- E Yu
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA.,Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
| | - J Zhang
- Morgridge Institute for Research, Madison, WI, USA
| | - J A Thomson
- Morgridge Institute for Research, Madison, WI, USA
| | - L-S Turng
- Department of Mechanical Engineering, University of Wisconsin-Madison, Madison, WI, USA.,Wisconsin Institute for Discovery, University of Wisconsin-Madison, Madison, WI, USA
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16
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Encapsulation of β-Sitosterol in Polyurethane by Sol–Gel Electrospinning. Appl Biochem Biotechnol 2016; 182:624-634. [DOI: 10.1007/s12010-016-2349-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/24/2016] [Indexed: 10/20/2022]
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17
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Drupitha MP, Naskar K, Nando GB. Nucleated nanocomposites of TPU–PDMS blends based on spherical nanohydroxyapatite. RSC Adv 2016. [DOI: 10.1039/c6ra14148j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present investigation gives a profound insight into the preparation of nucleated nanocomposites of TPU–PDMS blends based on uniquely synthesized PPG-wrapped spherical nanohydroxyapatite (nHap).
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Affiliation(s)
- M. P. Drupitha
- Rubber Technology Center
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Kinsuk Naskar
- Rubber Technology Center
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Golok B. Nando
- Rubber Technology Center
- Indian Institute of Technology
- Kharagpur 721302
- India
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18
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Jafari M, Paknejad Z, Rad MR, Motamedian SR, Eghbal MJ, Nadjmi N, Khojasteh A. Polymeric scaffolds in tissue engineering: a literature review. J Biomed Mater Res B Appl Biomater 2015; 105:431-459. [PMID: 26496456 DOI: 10.1002/jbm.b.33547] [Citation(s) in RCA: 152] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Revised: 09/06/2015] [Accepted: 09/27/2015] [Indexed: 12/16/2022]
Abstract
The tissue engineering scaffold acts as an extracellular matrix that interacts to the cells prior to forming new tissues. The chemical and structural characteristics of scaffolds are major concerns in fabricating of ideal three-dimensional structure for tissue engineering applications. The polymer scaffolds used for tissue engineering should possess proper architecture and mechanical properties in addition to supporting cell adhesion, proliferation, and differentiation. Much research has been done on the topic of polymeric scaffold properties such as surface topographic features (roughness and hydrophilicity) and scaffold microstructures (pore size, porosity, pore interconnectivity, and pore and fiber architectures) that influence the cell-scaffold interactions. In this review, efforts were given to evaluate the effect of both chemical and structural characteristics of scaffolds on cell behaviors such as adhesion, proliferation, migration, and differentiation. This review would provide the fundamental information which would be beneficial for scaffold design in future. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 431-459, 2017.
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Affiliation(s)
- Maissa Jafari
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zahrasadat Paknejad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Saeed Reza Motamedian
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Jafar Eghbal
- Iranian Center for Endodontic Research, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasser Nadjmi
- Department of Oral and Maxillofacial Surgery, University of Antwerp, Belgium, Antwerp, Belgium
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Münchow EA, Albuquerque MTP, Zero B, Kamocki K, Piva E, Gregory RL, Bottino MC. Development and characterization of novel ZnO-loaded electrospun membranes for periodontal regeneration. Dent Mater 2015; 31:1038-51. [PMID: 26116414 DOI: 10.1016/j.dental.2015.06.004] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 04/16/2015] [Accepted: 06/01/2015] [Indexed: 12/29/2022]
Abstract
OBJECTIVES This study reports on the synthesis, materials characterization, antimicrobial capacity, and cytocompatibility of novel ZnO-loaded membranes for guided tissue/bone regeneration (GTR/GBR). METHODS Poly(ɛ-caprolactone) (PCL) and PCL/gelatin (PCL/GEL) were dissolved in hexafluoropropanol and loaded with ZnO at distinct concentrations: 0 (control), 5, 15, and 30wt.%. Electrospinning was performed using optimized parameters and the fibers were characterized via scanning and transmission electron microscopies (SEM/TEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), contact angle (CA), mechanical testing, antimicrobial activity against periodontopathogens, and cytotoxicity test using human dental pulp stem cells (hDPSCs). Data were analyzed using ANOVA and Tukey (α=5%). RESULTS ZnO nanoparticles were successfully incorporated into the overall submicron fibers, which showed fairly good morphology and microstructure. Upon ZnO nanoparticles' incorporation, the PCL and PCL/GEL fibers became thicker and thinner, respectively. All GEL-containing membranes showed lower CA than the PCL-based membranes, which were highly hydrophobic. Overall, the mechanical properties of the membranes were reduced upon ZnO incorporation, except for PCL-based membranes containing ZnO at the 30wt.% concentration. The presence of GEL enhanced the stretching ability of membranes under wet conditions. All ZnO-containing membranes displayed antibacterial activity against the bacteria tested, which was generally more pronounced with increased ZnO content. All membranes synthesized in this study demonstrated satisfactory cytocompatibility, although the presence of 30wt.% ZnO led to decreased viability. SIGNIFICANCE Collectively, this study suggests that PCL- and PCL/GEL-based membranes containing a low content of ZnO nanoparticles can potentially function as a biologically safe antimicrobial GTR/GBR membrane.
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Affiliation(s)
- Eliseu A Münchow
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA; Department of Operative Dentistry, Federal University of Pelotas (UFPEL), School of Dentistry, Pelotas, RS 96015-560, Brazil
| | - Maria Tereza P Albuquerque
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA; Graduate Program in Restorative Dentistry, Universidade Estadual Paulista, São José dos Campos Dental School, São José dos Campos, São Paulo 12245-000, Brazil
| | - Bianca Zero
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA
| | - Krzysztof Kamocki
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA
| | - Evandro Piva
- Department of Operative Dentistry, Federal University of Pelotas (UFPEL), School of Dentistry, Pelotas, RS 96015-560, Brazil
| | | | - Marco C Bottino
- Department of Restorative Dentistry, Division of Dental Biomaterials, Indiana University School of Dentistry (IUSD), Indianapolis, IN 46202, USA.
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