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Guo X, Song P, Li F, Yan Q, Bai Y, He J, Che Q, Cao H, Guo J, Su Z. Research Progress of Design Drugs and Composite Biomaterials in Bone Tissue Engineering. Int J Nanomedicine 2023; 18:3595-3622. [PMID: 37416848 PMCID: PMC10321437 DOI: 10.2147/ijn.s415666] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/13/2023] [Indexed: 07/08/2023] Open
Abstract
Bone, like most organs, has the ability to heal naturally and can be repaired slowly when it is slightly injured. However, in the case of bone defects caused by diseases or large shocks, surgical intervention and treatment of bone substitutes are needed, and drugs are actively matched to promote osteogenesis or prevent infection. Oral administration or injection for systemic therapy is a common way of administration in clinic, although it is not suitable for the long treatment cycle of bone tissue, and the drugs cannot exert the greatest effect or even produce toxic and side effects. In order to solve this problem, the structure or carrier simulating natural bone tissue is constructed to control the loading or release of the preparation with osteogenic potential, thus accelerating the repair of bone defect. Bioactive materials provide potential advantages for bone tissue regeneration, such as physical support, cell coverage and growth factors. In this review, we discuss the application of bone scaffolds with different structural characteristics made of polymers, ceramics and other composite materials in bone regeneration engineering and drug release, and look forward to its prospect.
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Affiliation(s)
- Xinghua Guo
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
| | - Pan Song
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
| | - Feng Li
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
| | - Qihao Yan
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
| | - Yan Bai
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510310, People’s Republic of China
| | - Jincan He
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510310, People’s Republic of China
| | - Qishi Che
- Guangzhou Rainhome Pharm & Tech Co., Ltd, Science City, Guangzhou, 510663, People’s Republic of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, 528458, People’s Republic of China
| | - Jiao Guo
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou, 510006, People’s Republic of China
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Wang J, Chen G, Chen ZM, Wang FP, Xia B. Current strategies in biomaterial-based periosteum scaffolds to promote bone regeneration: A review. J Biomater Appl 2023; 37:1259-1270. [PMID: 36251764 DOI: 10.1177/08853282221135095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The role of periosteum rich in a variety of bone cells and growth factors in the treatment of bone defects has gradually been discovered. However, due to the limited number of healthy transplantable periosteum, there are still major challenges in the clinical treatment of critical-size bone defects. Various techniques for preparing biomimetic periosteal scaffolds that are similar in composition and structure to natural periosteal scaffold have gradually emerged. This article reviews the current preparation methods of biomimetic periosteal scaffolds based on various biomaterials, which are mainly divided into natural periosteal materials and various polymer biomaterials. Several preparation methods of biomimetic periosteal scaffolds with different principles are listed, their strengths and weaknesses are also discussed. It aims to provide a more systematic perspective for the preparation of biomimetic periosteal scaffolds in the future.
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Affiliation(s)
- Jinsong Wang
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Guobao Chen
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Zhong M Chen
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Fu P Wang
- School of Pharmacy and Bioengineering, 232838Chongqing University of Technology, Chongqing, China
| | - Bin Xia
- Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, 66530Chongqing Technology and Business University, Chongqing, China
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Application of biomolecules modification strategies on PEEK and its composites for osteogenesis and antibacterial properties. Colloids Surf B Biointerfaces 2022; 215:112492. [PMID: 35430485 DOI: 10.1016/j.colsurfb.2022.112492] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 12/24/2022]
Abstract
As orthopedic and dental implants, polyetheretherketone (PEEK) is expected to be a common substitute material of titanium (Ti) and its alloys due to its good biocompatibility, chemical stability, and elastic modulus close to that of bone tissue. It could avoid metal allergy and bone resorption caused by the stress shielding effect of Ti implants, widely studied in the medical field. However, the lack of biological activity is not conducive to the clinical application of PEEK implants. Therefore, the surface modification of PEEK has increasingly become one of the research hotspots. Researchers have explored various biomolecules modification methods to effectively enhance the osteogenic and antibacterial activities of PEEK and its composites. Therefore, this review mainly summarizes the recent research of PEEK modified by biomolecules and discusses the further research directions to promote the clinical transformation of PEEK implants.
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de Sousa Araújo E, Domingues Stocco T, Fernandes de Sousa G, Afewerki S, Marciano FR, Alexandre Finzi Corat M, Michelle Machado de Paula M, Ferreira Cândido Lima Verde T, Cristina Moreira Silva M, Oliveira Lobo A. Oxygen-generating microparticles in chondrocytes-laden hydrogels by facile and versatile click chemistry strategy. Colloids Surf B Biointerfaces 2021; 205:111850. [PMID: 34015729 DOI: 10.1016/j.colsurfb.2021.111850] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 05/03/2021] [Accepted: 05/11/2021] [Indexed: 01/12/2023]
Abstract
Currently, oxygen supply for in vitro cell culture is one of the major challenges in tissue engineering, especially in three-dimensional (3D) structures, such as polymeric hydrogels, because oxygen is an essential element for cells survival. In this context, oxygen levels must be maintained in articular cartilage to promote the differentiation, viability, and proliferation of chondrocytes due to the low level of oxygen presence in this region. Although some technologies employ oxygen-generating materials to add sufficient oxygen levels, the limitations and challenges of current technologies include the lack of controlled, sustained, and prolonged release of the oxygen. Moreover, the fabrication methods may leave some impurities or residues resulting in toxicity to the cells. "Click" chemistry is a facile, versatile, and compatible chemical strategy to engineer hydrogels for tissue engineering applications. Herein, we disclose the engineering of oxygen-generating microparticles in chondrocytes-laden hydrogels through a versatile catalyst-free tetrazine and norbornene inverse electron demand Diels‒Alder (iEDDA) click reaction. The hydrogels combine chondroitin sulfate (CS) and poly(ethylene glycol) (PEG) crosslinked in situ, displaying tunable rheological and mechanical properties, for sustained and prolonged oxygen-release. Gene expression analysis of the chondrocytes by real-time reverse transcription polymerase chain reaction (RT-PCR) demonstrated promising cell response within the engineered hydrogel.
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Affiliation(s)
- Erlane de Sousa Araújo
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Thiago Domingues Stocco
- Faculty of Medical Sciences, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil; University of Santo Amaro, São Paulo, SP, 04829-300, Brazil
| | - Gustavo Fernandes de Sousa
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, United States; Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology (MIT), Cambridge, MA, 02139, United States.
| | | | - Marcus Alexandre Finzi Corat
- Multidisciplinary Center for Biological Research, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil
| | | | - Thiago Ferreira Cândido Lima Verde
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil
| | - Mayara Cristina Moreira Silva
- Multidisciplinary Center for Biological Research, Unicamp - State University of Campinas, Campinas, SP, 13083-877, Brazil
| | - Anderson Oliveira Lobo
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, BioMatLab, UFPI - Federal University of Piaui, Teresina, PI, 64049-550, Brazil; Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, 02139, United States.
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Sustained Release Systems for Delivery of Therapeutic Peptide/Protein. Biomacromolecules 2021; 22:2299-2324. [PMID: 33957752 DOI: 10.1021/acs.biomac.1c00160] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Peptide/protein therapeutics have been significantly applied in the clinical treatment of various diseases such as cancer, diabetes, etc. owing to their high biocompatibility, specificity, and therapeutic efficacy. However, due to their immunogenicity, instability stemming from its complex tertiary and quaternary structure, vulnerability to enzyme degradation, and rapid renal clearance, the clinical application of protein/peptide therapeutics is significantly confined. Though nanotechnology has been demonstrated to prevent enzyme degradation of the protein therapeutics and thus enhance the half-life, issues such as initial burst release and uncontrollable release kinetics are still unsolved. Moreover, the traditional administration method results in poor patient compliance, limiting the clinical application of protein/peptide therapeutics. Exploiting the sustained-release formulations for more controllable delivery of protein/peptide therapeutics to decrease the frequency of injection and enhance patient compliance is thus greatly meaningful. In this review, we comprehensively summarize the substantial advancements of protein/peptide sustained-release systems in the past decades. In addition, the advantages and disadvantages of all these sustained-release systems in clinical application together with their future challenges are also discussed in this review.
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Peng W, Ren S, Zhang Y, Fan R, Zhou Y, Li L, Xu X, Xu Y. MgO Nanoparticles-Incorporated PCL/Gelatin-Derived Coaxial Electrospinning Nanocellulose Membranes for Periodontal Tissue Regeneration. Front Bioeng Biotechnol 2021; 9:668428. [PMID: 33842452 PMCID: PMC8026878 DOI: 10.3389/fbioe.2021.668428] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 03/02/2021] [Indexed: 12/19/2022] Open
Abstract
Electrospinning technique has attracted considerable attention in fabrication of cellulose nanofibrils or nanocellulose membranes, in which polycaprolactone (PCL) could be used as a promising precursor to prepare various cellulose nanofibril membranes for periodontal tissue regeneration. Conventional bio-membranes and cellulose films used in guided tissue regeneration (GTR) can prevent the downgrowth of epithelial cells, fibroblasts, and connective tissue in the area of tooth root but have limitations related to osteogenic and antimicrobial properties. Cellulose nanofibrils can be used as an ideal drug delivery material to encapsulate and carry some drugs. In this study, magnesium oxide (MgO) nanoparticles-incorporated PCL/gelatin core-shell nanocellulose periodontal membranes were fabricated using coaxial electrospinning technique, which was termed as Coaxial-MgO. The membranes using single-nozzle electrospinning technique, namely Blending-MgO and Blending-Blank, were used as control. The morphology and physicochemical property of these nanocellulose membranes were characterized by scanning electron microscopy (SEM), energy-dispersive spectrum of X-ray (EDS), transmission electron microscopy (TEM), contact angle, and thermogravimetric analysis (TGA). The results showed that the incorporation of MgO nanoparticles barely affected the morphology and mechanical property of nanocellulose membranes. Coaxial-MgO with core-shell fiber structure had better hydrophilic property and sustainable release of magnesium ion (Mg2+). CCK-8 cell proliferation and EdU staining demonstrated that Coaxial-MgO membranes showed better human periodontal ligament stem cells (hPDLSCs) proliferation rates compared with the other group due to its gelatin shell with great biocompatibility and hydrophilicity. SEM and immunofluorescence assay results illustrated that the Coaxial-MgO scaffold significantly enhanced hPDLSCs adhesion. In vitro osteogenic and antibacterial properties showed that Coaxial-MgO membrane enhanced alkaline phosphatase (ALP) activity, formation of mineralized nodules, osteogenic-related genes [ALP, collagen type 1 (COL1), runt-related transcription factor 2 (Runx2)], and high antibacterial properties toward Escherichia coli (E. coli) and Actinobacillus actinomycetemcomitans (A. a) when compared with controls. Our findings suggested that MgO nanoparticles-incorporated coaxial electrospinning PCL-derived nanocellulose periodontal membranes might have great prospects for periodontal tissue regeneration.
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Affiliation(s)
- Wenzao Peng
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Shuangshuang Ren
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yibo Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Department of Sports Medicine and Adult Reconstructive Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Ruyi Fan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yi Zhou
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Lu Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Xuanwen Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yan Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.,Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
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Chen ZY, Gao S, Zhang YW, Zhou RB, Zhou F. Antibacterial biomaterials in bone tissue engineering. J Mater Chem B 2021; 9:2594-2612. [PMID: 33666632 DOI: 10.1039/d0tb02983a] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bone infection is a devastating disease characterized by recurrence, drug-resistance, and high morbidity, that has prompted clinicians and scientists to develop novel approaches to combat it. Currently, although numerous biomaterials that possess excellent biocompatibility, biodegradability, porosity, and mechanical strength have been developed, their lack of effective antibacterial ability substantially limits bone-defect treatment efficacy. There is, accordingly, a pressing need to design antibacterial biomaterials for effective bone-infection prevention and treatment. This review focuses on antibacterial biomaterials and strategies; it presents recently reported biomaterials, including antibacterial implants, antibacterial scaffolds, antibacterial hydrogels, and antibacterial bone cement types, and aims to provide an overview of these antibacterial materials for application in biomedicine. The antibacterial mechanisms of these materials are discussed as well.
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Affiliation(s)
- Zheng-Yang Chen
- Orthopedic Department, Peking University Third Hospital, Beijing 100191, China.
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Afewerki S, Bassous N, Harb SV, Corat MAF, Maharjan S, Ruiz-Esparza GU, de Paula MMM, Webster TJ, Tim CR, Viana BC, Wang D, Wang X, Marciano FR, Lobo AO. Engineering multifunctional bactericidal nanofibers for abdominal hernia repair. Commun Biol 2021; 4:233. [PMID: 33608611 PMCID: PMC7896057 DOI: 10.1038/s42003-021-01758-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 01/23/2021] [Indexed: 02/06/2023] Open
Abstract
The engineering of multifunctional surgical bactericidal nanofibers with inherent suitable mechanical and biological properties, through facile and cheap fabrication technology, is a great challenge. Moreover, hernia, which is when organ is pushed through an opening in the muscle or adjacent tissue due to damage of tissue structure or function, is a dire clinical challenge that currently needs surgery for recovery. Nevertheless, post-surgical hernia complications, like infection, fibrosis, tissue adhesions, scaffold rejection, inflammation, and recurrence still remain important clinical problems. Herein, through an integrated electrospinning, plasma treatment and direct surface modification strategy, multifunctional bactericidal nanofibers were engineered showing optimal properties for hernia repair. The nanofibers displayed good bactericidal activity, low inflammatory response, good biodegradation, as well as optimal collagen-, stress fiber- and blood vessel formation and associated tissue ingrowth in vivo. The disclosed engineering strategy serves as a prominent platform for the design of other multifunctional materials for various biomedical challenges.
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Affiliation(s)
- Samson Afewerki
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Nicole Bassous
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Samarah Vargas Harb
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
- Institute of Chemistry, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | - Marcus Alexandre F Corat
- Multidisciplinary Center for Biological Research, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Guillermo U Ruiz-Esparza
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Mirian M M de Paula
- Multidisciplinary Center for Biological Research, University of Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Thomas J Webster
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | | | - Bartolomeu Cruz Viana
- LIMAV - Interdisciplinary Laboratory for Advanced Materials, Materials Science & Engineering Graduate Program, UFPI - Federal University of Piaui, Teresina, Piaui, Brazil
- Department of Physics, Federal University of Piaui, Teresina, Piaui, Brazil
| | - Danquan Wang
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
| | - Xichi Wang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Fernanda Roberta Marciano
- Nanomedicine Laboratory, Department of Chemical Engineering, Northeastern University, Boston, MA, USA
- Department of Physics, Federal University of Piaui, Teresina, Piaui, Brazil
| | - Anderson Oliveira Lobo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
- Division of Health Sciences and Technology, Harvard University ‒ Massachusetts Institute of Technology, Cambridge, MA, USA.
- LIMAV - Interdisciplinary Laboratory for Advanced Materials, Materials Science & Engineering Graduate Program, UFPI - Federal University of Piaui, Teresina, Piaui, Brazil.
- Department of Chemistry, Massachusetts Institute of Technology, MIT, Cambridge, MA, USA.
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Electrospinning: A Powerful Tool to Improve the Corrosion Resistance of Metallic Surfaces Using Nanofibrous Coatings. METALS 2020. [DOI: 10.3390/met10030350] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The use of surface engineering techniques to tune-up the composition of nanostructured thin-films for developing functional coatings with advanced properties is a hot topic within the scientific community. The control of the coating structure at the nanoscale level allows improving the intrinsic properties of the surface compared to bulk materials. A nanodeposition technique with increasing popularity in the field of nanotechnology is electrospinning. This technique permits the fabrication of long and continuous fibres on the micro-nano scale. The good control over fibre morphology combined with its simplicity, cost-effectiveness, easy exploitability and scalability make electrospinning a very interesting tool for technological applications. This review is focused on the use of the electrospinning technique to protect metallic surfaces against corrosion. Polymeric precursors, from natural or biodegradable to synthetic polymers and copolymers can be electrospun with an adequate control of the operational deposition parameters (applied voltage, flow rate, distance tip to collector) and the intrinsic properties of the polymeric precursor (concentration, viscosity, solvent). The electrospun fibres can be used as an efficient alternative to encapsulate corrosion inhibitors of different nature (inorganic or organic) as well as self-healing agents which can be released to reduce the corrosion rate in the metallic surfaces.
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Melt electrohydrodynamic 3D printed poly (ε-caprolactone)/polyethylene glycol/roxithromycin scaffold as a potential anti-infective implant in bone repair. Int J Pharm 2019; 576:118941. [PMID: 31881261 DOI: 10.1016/j.ijpharm.2019.118941] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 12/16/2022]
Abstract
Implanted scaffold or bone substitute is a common method to treat bone defects. However, the possible bone infection caused by orthopaedic surgery has created a challenging clinical problem and generally invalidate bone repair and regeneration. In this study, a poly (ε-caprolactone) (PCL)/polyethylene glycol (PEG)/roxithromycin (ROX) composite scaffold was prepared via melt electrohydrodynamic (EHD) 3D printing. Fourier transform infrared spectroscopy (FTIR) spectroscopy was performed to verify the existence of PEG and ROX in the scaffolds. By water contact angle measurement, the addition of both PEG and ROX was found to improve the hydrophilicity of the scaffolds. By in vitro drug release assay, the PCL/PEG/ROX scaffolds showed an initial burst drug release and subsequent long-term sustained release behaviour, which is favourable for the prevention and treatment of bone infections. The antibacterial assays against E. coli and S. aureus demonstrated that the composite scaffold with ROX possessed effective antibacterial activity, especially for S. aureus, the main cause of bone infection. The immunostaining and MTT assay with human osteoblast-like cells (MG63) indicated that cells showed good viability and growth on the scaffolds. Therefore, the melt EHD 3D printed PCL/PEG/ROX scaffold could be a promising anti-infective implant for bone tissue engineering.
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