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Dos Santos Menezes L, Navarro da Rocha D, Nonato RC, Costa AR, Morales AR, Correr-Sobrinho L, Correr AB, Neves JG. Cellulose acetate scaffold coated with a hydroxyapatite/graphene oxide nanocomposite for application in tissue engineering. Proc Inst Mech Eng H 2024:9544119241256715. [PMID: 38902971 DOI: 10.1177/09544119241256715] [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: 06/22/2024]
Abstract
The objective of this study was to synthesize and characterize porous Cellulose Acetate (CA) scaffolds using the electrospinning technique and functionalize the surface of the scaffolds obtained through the dip-coating method with a Hydroxyapatite (HA) nanocomposite and varying concentrations of graphene oxide (GO) for application in tissue engineering regeneration techniques. The scaffolds were divided into four distinct groups based on their composition: 1) CA scaffolds; 2) CAHAC scaffolds; 3) CAHAGOC 1.0% scaffolds; 4) CAHAGOC 1.5% scaffolds. Scaffold analyses were conducted using X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), Raman Spectroscopy, Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS), and in vitro cell viability assays (WST). For the biological test analysis, Variance (two-way) was used, followed by Tukey's post-test (α = 0.05). The XRD results revealed the predominant presence of CaP phases in the CAHAC, CAHAGOC 1.0%, and CAHAGOC 1.5% groups, emphasizing the presence of HA in the scaffolds. FTIR demonstrated characteristics of cellulose and PO4 bands in the groups containing HA, confirming the presence of CaP in the synthesized materials, as also indicated by XRD. Raman spectroscopy showed the presence of D and G bands, consistent with GO, confirming the successful incorporation of the HAGO nanocomposite into the scaffolds. The micrographs displayed overlapping electrospun fibers, forming the three-dimensional structure in the produced scaffolds. It was possible to observe hydroxyapatite crystals filling some of these pores, creating a suitable structure for cell adhesion, proliferation, and nutrition, as corroborated by the results of in vitro tests. All scaffolds exhibited high cell viability, with significant cell proliferation. Even after 48 h, there was a slight reduction in the number of cells, but a noteworthy increase in cell proliferation was evident in the CAHAGOC 1.5% group after 48 h (p < 0.05). In conclusion, it can be affirmed that the produced scaffolds demonstrated physical and biological characteristics and properties capable of promoting cell adhesion and proliferation. Therefore, they represent significant potential for application in tissue engineering, offering a new perspective regarding techniques and biomaterials applied in regenerative therapies.
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Affiliation(s)
- Luan Dos Santos Menezes
- Department of Restorative Dentistry - Dental Materials Area, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Sao Paulo, Brazil
| | | | - Renato Carajelescov Nonato
- Department of Materials Engineering, School of Chemical Engineering, Universidade de Campinas, Campinas, Brazil
| | - Ana Rosa Costa
- Department of Restorative Dentistry - Dental Materials Area, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Sao Paulo, Brazil
| | - Ana Rita Morales
- Department of Materials Engineering, School of Chemical Engineering, Universidade de Campinas, Campinas, Brazil
| | - Lourenço Correr-Sobrinho
- Department of Restorative Dentistry - Dental Materials Area, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Sao Paulo, Brazil
| | - Américo Bortolazzo Correr
- Department of Restorative Dentistry - Dental Materials Area, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Sao Paulo, Brazil
| | - José Guilherme Neves
- Department of Restorative Dentistry - Dental Materials Area, Piracicaba Dental School, State University of Campinas - UNICAMP, Piracicaba, Sao Paulo, Brazil
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Li X, Cui Y, He X, Mao L. Hydrogel-Based Systems in Neuro-Vascularized Bone Regeneration: A Promising Therapeutic Strategy. Macromol Biosci 2024; 24:e2300484. [PMID: 38241425 DOI: 10.1002/mabi.202300484] [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: 10/25/2023] [Revised: 12/16/2023] [Indexed: 01/21/2024]
Abstract
Blood vessels and nerve fibers are distributed throughout the skeletal tissue, which enhance the development and function of each other and have an irreplaceable role in bone formation and remodeling. Despite significant progress in bone tissue engineering, the inadequacy of nerve-vascular network reconstruction remains a major limitation. This is partly due to the difficulty of integrating and regulating multiple tissue types with artificial materials. Thus, understanding the anatomy and underlying coupling mechanisms of blood vessels and nerve fibers within bone to further develop neuro-vascularized bone implant biomaterials is an extremely critical aspect in the field of bone regeneration. Hydrogels have good biocompatibility, controllable mechanical characteristics, and osteoconductive and osteoinductive properties, making them important candidates for research related to neuro-vascularized bone regeneration. This review reports the classification and physicochemical properties of hydrogels, with a focus on the application advantages and status of hydrogels for bone regeneration. The authors also highlight the effect of neurovascular coupling on bone repair and regeneration and the necessity of achieving neuro-vascularized bone regeneration. Finally, the recent progress and design strategies of hydrogel-based biomaterials for neuro-vascularized bone regeneration are discussed.
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Affiliation(s)
- Xiaojing Li
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200000, China
| | - Ya Cui
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200000, China
| | - Xiaoya He
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200000, China
| | - Lixia Mao
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai Research Institute of Stomatology, Shanghai, 200000, China
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Liu X, Gao J, Liu J, Zhang L, Li M. Inhibiting the "isolated island" effect in simulated bone defect repair using a hollow structural scaffold design. Front Bioeng Biotechnol 2024; 12:1362913. [PMID: 38633663 PMCID: PMC11022659 DOI: 10.3389/fbioe.2024.1362913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Accepted: 03/18/2024] [Indexed: 04/19/2024] Open
Abstract
The treatment of bone tissue defects remains a complicated clinical challenge. Recently, the bone tissue engineering (BTE) technology has become an important therapeutic approach for bone defect repair. Researchers have improved the scaffolds, cells, and bioactive factors used in BTE through various existing bone repair material preparation strategies. However, due to insufficient vascularization, inadequate degradation, and fibrous wrapping, most BTE scaffolds impede new bone ingrowth and the reconstruction of grid-like connections in the middle and late stages of bone repair. These non-degradable scaffolds become isolated and disordered like independent "isolated islands", which leads to the failure of osteogenesis. Consequently, we hypothesized that the "island effect" prevents successful bone repair. Accordingly, we proposed a new concept of scaffold modification-osteogenesis requires a bone temporary shelter (also referred to as the empty shell osteogenesis concept). Based on this concept, we consider that designing hollow structural scaffolds is the key to mitigating the "isolated island" effect and enabling optimal bone regeneration and reconstruction.
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Affiliation(s)
- Xiao Liu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Jianpeng Gao
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Jianheng Liu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Licheng Zhang
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Ming Li
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing, China
- National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
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Cao Z, Qin Z, Duns GJ, Huang Z, Chen Y, Wang S, Deng R, Nie L, Luo X. Repair of Infected Bone Defects with Hydrogel Materials. Polymers (Basel) 2024; 16:281. [PMID: 38276689 PMCID: PMC10820481 DOI: 10.3390/polym16020281] [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: 12/13/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Infected bone defects represent a common clinical condition involving bone tissue, often necessitating surgical intervention and antibiotic therapy. However, conventional treatment methods face obstacles such as antibiotic resistance and susceptibility to postoperative infections. Hydrogels show great potential for application in the field of tissue engineering due to their advantageous biocompatibility, unique mechanical properties, exceptional processability, and degradability. Recent interest has surged in employing hydrogels as a novel therapeutic intervention for infected bone repair. This article aims to comprehensively review the existing literature on the anti-microbial and osteogenic approaches utilized by hydrogels in repairing infected bones, encompassing their fabrication techniques, biocompatibility, antimicrobial efficacy, and biological activities. Additionally, the potential opportunities and obstacles in their practical implementation will be explored. Lastly, the limitations presently encountered and the prospective avenues for further investigation in the realm of hydrogel materials for the management of infected bone defects will be deliberated. This review provides a theoretical foundation and advanced design strategies for the application of hydrogel materials in the treatment of infected bone defects.
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Affiliation(s)
- Zhenmin Cao
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China;
| | - Zuodong Qin
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China;
| | - Gregory J. Duns
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China;
| | - Zhao Huang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
| | - Yao Chen
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
| | - Sheng Wang
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
| | - Ruqi Deng
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
| | - Libo Nie
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
| | - Xiaofang Luo
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China; (Z.C.); (Z.Q.); (Z.H.); (Y.C.); (S.W.); (R.D.)
- Hunan Engineering Technology Research Center for Comprehensive Development and Utilization of Biomass Resources, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425199, China;
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Abedi M, Shafiee M, Afshari F, Mohammadi H, Ghasemi Y. Collagen-Based Medical Devices for Regenerative Medicine and Tissue Engineering. Appl Biochem Biotechnol 2023:10.1007/s12010-023-04793-3. [PMID: 38133881 DOI: 10.1007/s12010-023-04793-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/09/2023] [Indexed: 12/23/2023]
Abstract
Assisted reproductive technologies are key to solving the problems of aging and organ defects. Collagen is compatible with living tissues and has many different chemical properties; it has great potential for use in reproductive medicine and the engineering of reproductive tissues. It is a natural substance that has been used a lot in science and medicine. Collagen is a substance that can be obtained from many different animals. It can be made naturally or created using scientific methods. Using pure collagen has some drawbacks regarding its physical and chemical characteristics. Because of this, when collagen is processed in various ways, it can better meet the specific needs as a material for repairing tissues. In simpler terms, collagen can be used to help regenerate bones, cartilage, and skin. It can also be used in cardiovascular repair and other areas. There are different ways to process collagen, such as cross-linking it, making it more structured, adding minerals to it, or using it as a carrier for other substances. All of these methods help advance the field of tissue engineering. This review summarizes and discusses the current progress of collagen-based materials for reproductive medicine.
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Affiliation(s)
- Mehdi Abedi
- Pharmaceutical Science Research Center, Shiraz University of Medical Science, Shiraz, Iran.
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran.
| | - Mina Shafiee
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran
| | - Farideh Afshari
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Medical Sciences and Technology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamidreza Mohammadi
- Research and Development Department, Danesh Salamat Kowsar Co., P.O. Box 7158186496, Shiraz, Iran
| | - Younes Ghasemi
- Pharmaceutical Science Research Center, Shiraz University of Medical Science, Shiraz, Iran
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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Alavi SE, Alavi SZ, Gholami M, Sharma A, Sharma LA, Ebrahimi Shahmabadi H. Biocomposite-based strategies for dental bone regeneration. Oral Surg Oral Med Oral Pathol Oral Radiol 2023; 136:554-568. [PMID: 37612166 DOI: 10.1016/j.oooo.2023.04.015] [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: 03/22/2023] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 08/25/2023]
Abstract
OBJECTIVE Because of the anatomical complexity of the oral and maxillofacial sites, repairing bone defects in these regions is very difficult. This review article aims to consider the application of biocomposites-based strategies for dental bone regeneration. STUDY DESIGN Research papers related to the topic, published over the last 20 years, were selected using the Web of Science, Pubmed, Scopus, and Google Scholar databases. RESULTS The strategies of monophasic, biphasic/multiphasic scaffolds, and biopolymer-based nanocomposite scaffolds containing nanomaterials compared with traditional methods used for bone regeneration, such as autografts, allografts, xenografts, and alloplasts are found to be superior because of their ability to overcome the issues (e.g., limited bone sources, pain, immune responses, high cost) related to the applications of the traditional methods. CONCLUSIONS In addition, additive manufacturing technologies were found to be highly advantageous for improving the efficacy of biocomposite scaffolds for treating dental bone defects.
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Affiliation(s)
- Seyed Ebrahim Alavi
- School of Medicine and Dentistry, Griffith University, Gold Coast, Australia
| | - Seyed Zeinab Alavi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Max Gholami
- School of Medicine and Dentistry, Griffith University, Gold Coast, Australia
| | - Ajay Sharma
- School of Medicine and Dentistry, Griffith University, Gold Coast, Australia
| | - Lavanya A Sharma
- School of Medicine and Dentistry, Griffith University, Gold Coast, Australia.
| | - Hasan Ebrahimi Shahmabadi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
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Shopova D, Mihaylova A, Yaneva A, Bakova D. Advancing Dentistry through Bioprinting: Personalization of Oral Tissues. J Funct Biomater 2023; 14:530. [PMID: 37888196 PMCID: PMC10607235 DOI: 10.3390/jfb14100530] [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: 09/16/2023] [Revised: 10/07/2023] [Accepted: 10/18/2023] [Indexed: 10/28/2023] Open
Abstract
Despite significant advancements in dental tissue restoration and the use of prostheses for addressing tooth loss, the prevailing clinical approaches remain somewhat inadequate for replicating native dental tissue characteristics. The emergence of three-dimensional (3D) bioprinting offers a promising innovation within the fields of regenerative medicine and tissue engineering. This technology offers notable precision and efficiency, thereby introducing a fresh avenue for tissue regeneration. Unlike the traditional framework encompassing scaffolds, cells, and signaling factors, 3D bioprinting constitutes a contemporary addition to the arsenal of tissue engineering tools. The ongoing shift from conventional dentistry to a more personalized paradigm, principally under the guidance of bioprinting, is poised to exert a significant influence in the foreseeable future. This systematic review undertakes the task of aggregating and analyzing insights related to the application of bioprinting in the context of regenerative dentistry. Adhering to PRISMA guidelines, an exhaustive literature survey spanning the years 2019 to 2023 was performed across prominent databases including PubMed, Scopus, Google Scholar, and ScienceDirect. The landscape of regenerative dentistry has ushered in novel prospects for dentoalveolar treatments and personalized interventions. This review expounds on contemporary accomplishments and avenues for the regeneration of pulp-dentin, bone, periodontal tissues, and gingival tissues. The progressive strides achieved in the realm of bioprinting hold the potential to not only enhance the quality of life but also to catalyze transformative shifts within the domains of medical and dental practices.
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Affiliation(s)
- Dobromira Shopova
- Department of Prosthetic Dentistry, Faculty of Dental Medicine, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria
| | - Anna Mihaylova
- Department of Healthcare Management, Faculty of Public Health, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria (D.B.)
| | - Antoniya Yaneva
- Department of Medical Informatics, Biostatistics and eLearning, Faculty of Public Health, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria;
| | - Desislava Bakova
- Department of Healthcare Management, Faculty of Public Health, Medical University of Plovdiv, 4000 Plovdiv, Bulgaria (D.B.)
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Atila D, Kumaravel V. Advances in antimicrobial hydrogels for dental tissue engineering: regenerative strategies for endodontics and periodontics. Biomater Sci 2023; 11:6711-6747. [PMID: 37656064 DOI: 10.1039/d3bm00719g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Dental tissue infections have been affecting millions of patients globally leading to pain, severe tissue damage, or even tooth loss. Commercial sterilizers may not be adequate to prevent frequent dental infections. Antimicrobial hydrogels have been introduced as an effective therapeutic strategy for endodontics and periodontics since they have the capability of imitating the native extracellular matrix of soft tissues. Hydrogel networks are considered excellent drug delivery platforms due to their high-water retention capacity. In this regard, drugs or nanoparticles can be incorporated into the hydrogels to endow antimicrobial properties as well as to improve their regenerative potential, once biocompatibility criteria are met avoiding high dosages. Herein, novel antimicrobial hydrogel formulations were discussed for the first time in the scope of endodontics and periodontics. Such hydrogels seem outstanding candidates especially when designed not only as simple volume fillers but also as smart biomaterials with condition-specific adaptability within the dynamic microenvironment of the defect site. Multifunctional hydrogels play a pivotal role against infections, inflammation, oxidative stress, etc. along the way of dental regeneration. Modern techniques (e.g., 3D and 4D-printing) hold promise to develop the next generation of antimicrobial hydrogels together with their limitations such as infeasibility of implantation.
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Affiliation(s)
- Deniz Atila
- International Centre for Research on Innovative Biobased Materials (ICRI-BioM) - International Research Agenda, Lodz University of Technology, Żeromskiego 116, 90-924, Lodz, Poland.
| | - Vignesh Kumaravel
- International Centre for Research on Innovative Biobased Materials (ICRI-BioM) - International Research Agenda, Lodz University of Technology, Żeromskiego 116, 90-924, Lodz, Poland.
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Fan Z, Liu H, Ding Z, Xiao L, Lu Q, Kaplan DL. Simulation of Cortical and Cancellous Bone to Accelerate Tissue Regeneration. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2301839. [PMID: 37601745 PMCID: PMC10437128 DOI: 10.1002/adfm.202301839] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Indexed: 08/22/2023]
Abstract
Different tissues have complex anisotropic structures to support biological functions. Mimicking these complex structures in vitro remains a challenge in biomaterials designs in support of tissue regeneration. Here, inspired by different types of silk nanofibers, a composite materials strategy was pursued towards this challenge. A combination of fabrication methods was utilized to achieve separate control of amorphous and beta-sheet rich silk nanofibers in the same solution. Aqueous solutions containing these two structural types of silk nanofibers were then simultaneously treated with an electric field and with ethylene glycol diglycidyl ether (EGDE). Under these conditions, the beta-sheet rich silk nanofibers in the mixture responded to the electric field while the amorphous nanofibers were active in the crosslinking process with the EGDE. As a result, cryogels with anisotropic structures were prepared, including mimics for cortical- and cancellous-like bone biomaterials as a complex osteoinductive niche. In vitro studies revealed that mechanical cues of the cryogels induced osteodifferentiation of stem cells while the anisotropy inside the cryogels influenced immune reactions of macrophages. These bioactive cryogels also stimulated improved bone regeneration in vivo through modulation of inflammation, angiogenesis and osteogenesis responses, suggesting an effective strategy to develop bioactive matrices with complex anisotropic structures beneficial to tissue regeneration.
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Affiliation(s)
- Zhihai Fan
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People’s Republic of China
| | - Hongxiang Liu
- Department of Orthopedics, The Second Affiliated Hospital of Soochow University, Suzhou 215000, People’s Republic of China
| | - Zhaozhao Ding
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Liying Xiao
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
- National Engineering Laboratory for Modern Silk & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Qiang Lu
- State Key Laboratory of Radiation Medicine and Radiation Protection, Institutes for Translational Medicine, Soochow University, Suzhou 215123, People’s Republic of China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
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Li W, Wu Y, Zhang X, Wu T, Huang K, Wang B, Liao J. Self-healing hydrogels for bone defect repair. RSC Adv 2023; 13:16773-16788. [PMID: 37283866 PMCID: PMC10240173 DOI: 10.1039/d3ra01700a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 05/24/2023] [Indexed: 06/08/2023] Open
Abstract
Severe bone defects can be caused by various factors, such as tumor resection, severe trauma, and infection. However, bone regeneration capacity is limited up to a critical-size defect, and further intervention is required. Currently, the most common clinical method to repair bone defects is bone grafting, where autografts are the "gold standard." However, the disadvantages of autografts, including inflammation, secondary trauma and chronic disease, limit their application. Bone tissue engineering (BTE) is an attractive strategy for repairing bone defects and has been widely researched. In particular, hydrogels with a three-dimensional network can be used as scaffolds for BTE owing to their hydrophilicity, biocompatibility, and large porosity. Self-healing hydrogels respond rapidly, autonomously, and repeatedly to induced damage and can maintain their original properties (i.e., mechanical properties, fluidity, and biocompatibility) following self-healing. This review focuses on self-healing hydrogels and their applications in bone defect repair. Moreover, we discussed the recent progress in this research field. Despite the significant existing research achievements, there are still challenges that need to be addressed to promote clinical research of self-healing hydrogels in bone defect repair and increase the market penetration.
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Affiliation(s)
- Weiwei Li
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Yanting Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Xu Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
| | - Tingkui Wu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Kangkang Huang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Beiyu Wang
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University Chengdu 610041 China
| | - Jinfeng Liao
- State Key Laboratory of Oral Diseases, National Clinical Research Centre for Oral Diseases, West China Hospital of Stomatology, Sichuan University Chengdu 610041 China
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Zhang Y, Jiang S, Xu D, Li Z, Guo J, Li Z, Cheng G. Application of Nanocellulose-Based Aerogels in Bone Tissue Engineering: Current Trends and Outlooks. Polymers (Basel) 2023; 15:polym15102323. [PMID: 37242898 DOI: 10.3390/polym15102323] [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: 03/08/2023] [Revised: 05/07/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
The complex or compromised bone defects caused by osteomyelitis, malignant tumors, metastatic tumors, skeletal abnormalities, and systemic diseases are difficult to be self-repaired, leading to a non-union fracture. With the increasing demands of bone transplantation, more and more attention has been paid to artificial bone substitutes. As biopolymer-based aerogel materials, nanocellulose aerogels have been widely utilized in bone tissue engineering. More importantly, nanocellulose aerogels not only mimic the structure of the extracellular matrix but could also deliver drugs and bioactive molecules to promote tissue healing and growth. Here, we reviewed the most recent literature about nanocellulose-based aerogels, summarized the preparation, modification, composite fabrication, and applications of nanocellulose-based aerogels in bone tissue engineering, as well as giving special focus to the current limitations and future opportunities of nanocellulose aerogels for bone tissue engineering.
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Affiliation(s)
- Yaoguang Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan 250012, China
| | - Shengjun Jiang
- Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430079, China
| | - Dongdong Xu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou 325015, China
| | - Zubing Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Jie Guo
- Department of Orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University, Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration & Shandong Provincial Clinical Research Center for Oral Diseases, Jinan 250012, China
| | - Zhi Li
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Gu Cheng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan 430079, China
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12
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Atia GAN, Shalaby HK, Ali NG, Morsy SM, Ghobashy MM, Attia HAN, Barai P, Nady N, Kodous AS, Barai HR. New Challenges and Prospective Applications of Three-Dimensional Bioactive Polymeric Hydrogels in Oral and Craniofacial Tissue Engineering: A Narrative Review. Pharmaceuticals (Basel) 2023; 16:702. [PMID: 37242485 PMCID: PMC10224377 DOI: 10.3390/ph16050702] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Regenerative medicine, and dentistry offers enormous potential for enhancing treatment results and has been fueled by bioengineering breakthroughs over the previous few decades. Bioengineered tissues and constructing functional structures capable of healing, maintaining, and regenerating damaged tissues and organs have had a broad influence on medicine and dentistry. Approaches for combining bioinspired materials, cells, and therapeutic chemicals are critical in stimulating tissue regeneration or as medicinal systems. Because of its capacity to maintain an unique 3D form, offer physical stability for the cells in produced tissues, and replicate the native tissues, hydrogels have been utilized as one of the most frequent tissue engineering scaffolds during the last twenty years. Hydrogels' high water content can provide an excellent conditions for cell viability as well as an architecture that mimics real tissues, bone, and cartilage. Hydrogels have been used to enable cell immobilization and growth factor application. This paper summarizes the features, structure, synthesis and production methods, uses, new challenges, and future prospects of bioactive polymeric hydrogels in dental and osseous tissue engineering of clinical, exploring, systematical and scientific applications.
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Affiliation(s)
- Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Hany K. Shalaby
- Department of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez P.O. Box 43512, Egypt
| | - Naema Goda Ali
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Shaimaa Mohammed Morsy
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, Cairo P.O. Box 13759, Egypt
| | - Hager Abdel Nasser Attia
- Department of Molecular Biology and Chemistry, Faculty of Science, Alexandria University, Alexandria P.O. Box 21526, Egypt
| | - Paritosh Barai
- Department of Biochemistry and Molecular Biology, Primeasia University, Dhaka 1213, Bangladesh
| | - Norhan Nady
- Polymeric Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg Elarab, Alexandria P.O. Box 21934, Egypt
| | - Ahmad S. Kodous
- Department of Radiation Biology, National Center for Radiation Research and Technology, Egyptian Atomic Energy Authority (EAEA), Cairo P.O. Box 13759, Egypt
| | - Hasi Rani Barai
- Department of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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13
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Ismail E, Mabrouk M, Salem ZA, AbuBakr N, Beherei H. Evaluation of innovative polyvinyl alcohol/ alginate/ green palladium nanoparticles composite scaffolds: Effect on differentiated human dental pulp stem cells into osteoblasts. J Mech Behav Biomed Mater 2023; 140:105700. [PMID: 36801785 DOI: 10.1016/j.jmbbm.2023.105700] [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: 12/11/2022] [Revised: 01/29/2023] [Accepted: 01/30/2023] [Indexed: 02/11/2023]
Abstract
Three-dimensional (3D) scaffolds are attracting great concern for bone tissue engineering applications. However, selecting an appropriate material with optimal physical, chemical, and mechanical properties is considered a great challenge. The green synthesis approach is essential to avoid the production of harmful by-products through textured construction, sustainable, and eco-friendly procedures. This work aimed at the implementation of natural green synthesized metallic nanoparticles for the development of composite scaffolds for dental applications. In this study, innovative hybrid scaffolds of polyvinyl alcohol/alginate (PVA/Alg) composite loaded with various concentrations of green palladium nanoparticles (Pd NPs) have been synthesized. Various characteristic analysis techniques were used to investigate the synthesized composite scaffold's properties. The SEM analysis revealed impressive microstructure of the synthesized scaffolds dependent on the Pd NPs concentration. The results confirmed the positive effect of Pd NPs doping on the sample stability over time. The synthesized scaffolds were characterized by the oriented lamellar porous structure. The results confirmed the shape stability, without pores breakdown during the drying process. The XRD analysis confirmed that doping with Pd NPs does not affect the crystallinity degree of the PVA/Alg hybrid scaffolds. The mechanical properties results (up to 50 MPa) confirmed the remarkable effect of Pd NPs doping and its concentration on the developed scaffolds. The MTT assay results showed that the incorporation of Pd NPs into the nanocomposite scaffolds is necessary for increasing cell viability. According to the SEM results, the scaffolds with Pd NPs provided the differentiated grown osteoblast cells with enough mechanical support and stability and the cells had a regular form and were highly dense. In conclusion, the synthesized composite scaffolds expressed suitable biodegradable, osteoconductive properties, and the ability to construct 3D structures for bone regeneration, making them a potential option for treating critical deficiencies of bone.
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Affiliation(s)
- Enas Ismail
- Department of Restorative Dentistry, Faculty of Dentistry, University of the Western Cape, Parow, 7505, Cape Town, South Africa; Physics Department, Faculty of Science, Girl's Branch, Al Azhar University, Nasr City, Cairo, Egypt.
| | - Mostafa Mabrouk
- Refractories, Ceramics, and Building Materials Department, National Research Centre, 33El Bohouthst, Dokki, Giza, Egypt.
| | - Zeinab A Salem
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, P.O 11553, Egypt; Faculty of Oral and Dental Medicine, Ahram Canadian University, 6 October City, P.O 12573, Egypt
| | - Nermeen AbuBakr
- Department of Oral Biology, Faculty of Dentistry, Cairo University, Cairo, P.O 11553, Egypt; Stem Cells and Tissue Engineering Unit, Faculty of Dentistry, Cairo University, Cairo, P.O 11553, Egypt
| | - Hanan Beherei
- Refractories, Ceramics, and Building Materials Department, National Research Centre, 33El Bohouthst, Dokki, Giza, Egypt
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14
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Miao Y, Chen Y, Luo J, Liu X, Yang Q, Shi X, Wang Y. Black phosphorus nanosheets-enabled DNA hydrogel integrating 3D-printed scaffold for promoting vascularized bone regeneration. Bioact Mater 2023; 21:97-109. [PMID: 36093326 PMCID: PMC9417961 DOI: 10.1016/j.bioactmat.2022.08.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/10/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
The classical 3D-printed scaffolds have attracted enormous interests in bone regeneration due to the customized structural and mechanical adaptability to bone defects. However, the pristine scaffolds still suffer from the absence of dynamic and bioactive microenvironment that is analogous to natural extracellular matrix (ECM) to regulate cell behaviour and promote tissue regeneration. To address this challenge, we develop a black phosphorus nanosheets-enabled dynamic DNA hydrogel to integrate with 3D-printed scaffold to build a bioactive gel-scaffold construct to achieve enhanced angiogenesis and bone regeneration. The black phosphorus nanosheets reinforce the mechanical strength of dynamic self-healable hydrogel and endow the gel-scaffold construct with preserved protein binding to achieve sustainable delivery of growth factor. We further explore the effects of this activated construct on both human umbilical vein endothelial cells (HUVECs) and mesenchymal stem cells (MSCs) as well as in a critical-sized rat cranial defect model. The results confirm that the gel-scaffold construct is able to promote the growth of mature blood vessels as well as induce osteogenesis to promote new bone formation, indicating that the strategy of nano-enabled dynamic hydrogel integrated with 3D-printed scaffold holds great promise for bone tissue engineering. Therapeutic VEGF-engineered black phosphorus nanosheets are incorporated into DNA hydrogels. Nano-enabled DNA hydrogel integrating with 3D-printed scaffold builds gel-scaffold construct. Gel-scaffold construct upregulates the expression of genes and proteins related to angiogenesis and osteogenesis. Gel-scaffold construct accelerates the formation of early vascular network and new bone tissue.
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Affiliation(s)
- Yali Miao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Yunhua Chen
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, And Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China.
| | - Jinshui Luo
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xiao Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Qian Yang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
| | - Xuetao Shi
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, And Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China
- Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China.
| | - Yingjun Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Engineering of Guangdong Province, And Innovation Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, China
- Key Laboratory of Biomedical Materials and Engineering of the Ministry of Education, South China University of Technology, Guangzhou, 510006, China
- Corresponding author. School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, China.
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15
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Vurat MT, Parmaksiz M, Elçin AE, Elçin YM. Bioactive composite hydrogels as 3D mesenchymal stem cell encapsulation environment for bone tissue engineering: in vitro and in vivo studies. J Biomed Mater Res A 2023; 111:261-277. [PMID: 36239582 DOI: 10.1002/jbm.a.37457] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 09/14/2022] [Accepted: 09/28/2022] [Indexed: 12/13/2022]
Abstract
Although decellularized bone matrix (DBM) has often been used in scaffold form for osteogenic applications, its use as a stem cell encapsulation matrix adaptable to surgical shaping procedures has been neglected. This study aimed to investigate the feasibility of utilizing solubilized DBM and nanohydroxyapatite (nHAp)-incorporated DBM hydrogels as encapsulation matrix for bone marrow-derived MSCs (BM-MSCs). First, DBM and DBM/nHAp hydrogels were assessed by physical, chemical, turbidimetric, thermal, and mechanical methods; then, in vitro cytocompatibility and in vitro hemocompatibility were investigated. An in vivo study was performed to evaluate the osteogenic properties of hydrogels alone or with BM-MSCs encapsulated in them. The findings revealed that hydrogels retained high levels of collagen and glycosaminoglycans after successful decellularization. They were found to be cytocompatible and hemocompatible in vitro, and were able to gel with sufficient mechanical stability at physiological temperature. BM-MSCs survived in culture for at least 2 weeks as metabolically active when encapsulated in both DBM and DBM/nHAp. Preliminary in vivo study showed that DBM-nHAp has higher osteogenicity than DBM. Moreover, BM-MSC encapsulated DMB/nHAp showed predominant bone-like tissue formation at 30 days in the rat ectopic site compared to its cell-free form.
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Affiliation(s)
- Murat Taner Vurat
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Mahmut Parmaksiz
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey.,R&D Division, Biovalda Health Technologies, Inc., Ankara, Turkey.,Faculty of Science, Biochemistry Division, Ankara University, Ankara, Turkey
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16
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Kordován MÁ, Hegedűs C, Czifrák K, Lakatos C, Kálmán-Szabó I, Daróczi L, Zsuga M, Kéki S. Novel Polyurethane Scaffolds Containing Sucrose Crosslinker for Dental Application. Int J Mol Sci 2022; 23:ijms23147904. [PMID: 35887250 PMCID: PMC9319899 DOI: 10.3390/ijms23147904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/14/2022] [Accepted: 07/16/2022] [Indexed: 02/05/2023] Open
Abstract
In this paper, the synthesis, characterization, and properties of crosslinked poly(ε-caprolactone)-based polyurethanes as potential tissue replacement materials are reported. The polyurethane prepolymers were prepared from poly(ε-caprolactone)diol (PCD), polyethylene glycol (PEG)/polylactic acid diol (PLAD), and 1,6-hexamethylene diisocyanate (HDI). In these segmented polyurethanes, the role of PEG/PLAD was to tune the hydrophobic/hydrophilic character of the resulting polymer while sucrose served as a crosslinking agent. PLAD was synthesized by the polycondensation reaction of D,L-lactic acid and investigated by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and nuclear magnetic resonance spectroscopy (NMR). The crosslinked polyurethane samples (SUPURs) obtained were characterized by attenuated total reflectance Fourier-transform infrared spectroscopy (AT-FT-IR), swelling, and mechanical (uniaxial tensile tests) experiments. The thermo and thermomechanical behavior were studied by differential scanning calorimetry (DSC) and dynamical mechanical analysis (DMA). The viability of dental pulp stem cells was investigated in the case of polyurethanes composed of fully biocompatible elements. In our studies, none of our polymers showed toxicity to stem cells (DPSCs).
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Affiliation(s)
- Marcell Árpád Kordován
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
- Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary
| | - Csaba Hegedűs
- Department of Prosthetic Dentistry and Biomaterials, Faculty of Dentistry, University of Debrecen, H-4012 Debrecen, Hungary; (C.H.); (I.K.-S.)
| | - Katalin Czifrák
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Csilla Lakatos
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Ibolya Kálmán-Szabó
- Department of Prosthetic Dentistry and Biomaterials, Faculty of Dentistry, University of Debrecen, H-4012 Debrecen, Hungary; (C.H.); (I.K.-S.)
| | - Lajos Daróczi
- Department of Solid State Physics, University of Debrecen, Bem tér 18/b, H-4026 Debrecen, Hungary;
| | - Miklós Zsuga
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
| | - Sándor Kéki
- Department of Applied Chemistry, University of Debrecen, Egyetem tér 1, H-4032 Debrecen, Hungary; (M.Á.K.); (K.C.); (C.L.); (M.Z.)
- Correspondence: ; Tel.: +36-52-512-900 (ext. 22455)
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17
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Stoleru E, Dumitriu RP, Ailiesei GL, Yilmaz C, Brebu M. Synthesis of Bioactive Materials by In Situ One-Step Direct Loading of Syzygium aromaticum Essential Oil into Chitosan-Based Hydrogels. Gels 2022; 8:gels8040225. [PMID: 35448126 PMCID: PMC9025341 DOI: 10.3390/gels8040225] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/25/2022] [Accepted: 04/02/2022] [Indexed: 02/04/2023] Open
Abstract
Hydrogel conjugates based on chitosan and an essential oil were synthetized by an ultrasound-assisted emulsification approach. Rheology studies revealed a gel-type structure with pronounced compactness and flexibility while SEM showed the formation of a two-level ordered network with highly interconnected pores. The swelling studies indicated a pH-dependent behavior with a significant overshooting effect. The synergistic effects of the components in clove essential oil led to a strong antioxidant character and an enhanced antimicrobial activity of the conjugate hydrogels. The bioactivity was maintained for 6 months, despite a slight decrease in the antimicrobial effect. Hydrogel conjugates were found to be very stable even after two months immersed in acidic solutions that would otherwise dissolve the chitosan matrix. Ultrasound emulsification was proved as an efficient one-step loading method of hydrophobic clove essential oil into hydrophilic chitosan matrix. It was found that clove oil and its components have a double role. Besides providing bioactivity, they also behave as gelation-inducing agents, acting as an alternative to the classical chemical cross-linkers to ensure the good physical and chemical stabilization of chitosan.
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Affiliation(s)
- Elena Stoleru
- Correspondence: (E.S.); (M.B.); Tel.: +40-332-880-220 (E.S. & M.B.)
| | | | | | | | - Mihai Brebu
- Correspondence: (E.S.); (M.B.); Tel.: +40-332-880-220 (E.S. & M.B.)
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18
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Robo I, Heta S, Papakozma D, Ostreni V. Modification of implant surfaces to stimulate mesenchymal cell activation. BULLETIN OF THE NATIONAL RESEARCH CENTRE 2022; 46:52. [PMID: 35261541 PMCID: PMC8894561 DOI: 10.1186/s42269-022-00743-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 02/21/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND The process of osteointegration, as key point has the activation of mesenchymal cells at implant-bone interspace, their differentiation into osteoblasts and connection between the implant surface and the surrounding bone. MAIN TEXT Implant surfaces composed by biocompatible, organism-friendly materials require changes in content and surface morphology; changes that may further stimulate mesenchymal cell activation. The way the implant surfaces are affected with advantages and disadvantages, that typically bring each methodology, is also the purpose of this study. The study is of review type, based on finding articles about implant surface modification, with the aim of promoting the mesenchymal cell activation, utilizing keyword combination. CONCLUSIONS Implant success beyond the human element of the practicioner and the protocol element of implant treatment, also relies on the application of the right type of implant, at the right implant site, in accordance with oral and individual health status of the patient. Implant success does not depend on type of "coating" material of the implants. Based at this physiological process, the success or implant failure is not a process depending on the type of selected implant, because types of synthetic or natural materials that promote osteointegration are relatively in large number.
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Affiliation(s)
- Ilma Robo
- Faculty of Dental Medicine, University of Medicine, Tiranë, Albania
| | - Saimir Heta
- Pediatric Surgery, Pediatric Surgeon, University Hospital, QSUT, Tiranë, Albania
| | | | - Vera Ostreni
- Pediatric Surgery, Pediatric Surgeon, University Hospital, QSUT, Tiranë, Albania
- Department of Morphology, University of Medicine, Tiranë, Albania
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19
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Sun M, Cheng L, Xu Z, Chen L, Liu Y, Xu Y, Zhou D, Zhang X, Zhou Q, Sun J. Preparation and Characterization of Vancomycin Hydrochloride-Loaded Mesoporous Silica Composite Hydrogels. Front Bioeng Biotechnol 2022; 10:826971. [PMID: 35211464 PMCID: PMC8861455 DOI: 10.3389/fbioe.2022.826971] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/03/2022] [Indexed: 02/03/2023] Open
Abstract
This study aims to explore the feasibility of the novel temperature-sensitive hydrogel-based dual sustained-release system (Van/SBA-15/CS-GP-SA) in the repair and treatment of infectious jaw defects. Van/SBA-15 was prepared using the mesoporous silica (SBA-15) as a carrier for vancomycin hydrochloride (Van), and Van/SBA-15 was characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive spectrometry (EDS), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared (FTIR), Brunauer-Emmett-Teller (BET), and Barrett-Joyner-Halenda (BJH). The characterization results confirm that Van is loaded in SBA-15 successfully. Van/SBA-15/CS-GP-SA is constructed by encapsulating Van/SBA-15 in chitosan-sodium glycerophosphate-sodium alginate hydrogel (CS-GP-SA). The microstructures, sustained-release ability, biocompatibility, and antibacterial properties of Van/SBA-15/CS-GP-SA were systematically studied. Van/SBA-15/CS-GP-SA is found to have promising sustained-release ability, outstanding biocompatibility, and excellent antibacterial properties. This study provides new ideas for the management of infectious jaw defects.
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Affiliation(s)
- Ming Sun
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Lidi Cheng
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Zexian Xu
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Liqiang Chen
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China
| | - Yanshan Liu
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China
| | - Yaoxiang Xu
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Dongyang Zhou
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Xiuxiu Zhang
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China
| | - Qihui Zhou
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jian Sun
- The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao, Qingdao, China.,Shandong Provincial Key Laboratory of Digital Medicine and Computer-Assisted Surgery, Qingdao, China
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20
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Lin YT, Hsu TT, Liu YW, Kao CT, Huang TH. Bidirectional Differentiation of Human-Derived Stem Cells Induced by Biomimetic Calcium Silicate-Reinforced Gelatin Methacrylate Bioink for Odontogenic Regeneration. Biomedicines 2021; 9:biomedicines9080929. [PMID: 34440133 PMCID: PMC8394247 DOI: 10.3390/biomedicines9080929] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/28/2021] [Accepted: 07/29/2021] [Indexed: 01/09/2023] Open
Abstract
Tooth loss or damage is a common problem affecting millions of people worldwide, and it results in significant impacts on one’s quality of life. Dental regeneration with the support of stem cell-containing scaffolds has emerged as an alternative treatment strategy for such cases. With this concept in mind, we developed various concentrations of calcium silicate (CS) in a gelatin methacryloyl (GelMa) matrix and fabricated human dental pulp stem cells (hDPSCs)-laden scaffolds via the use of a bioprinting technology in order to determine their feasibility in promoting odontogenesis. The X-ray diffraction and Fourier transform-infrared spectroscopy showed that the incorporation of CS increased the number of covalent bonds in the GelMa hydrogels. In addition, rheological analyses were conducted for the different concentrations of hydrogels to evaluate their sol–gel transition temperature. It was shown that incorporation of CS improved the printability and printing quality of the scaffolds. The printed CS-containing scaffolds were able to release silicate (Si) ions, which subsequently significantly enhanced the activation of signaling-related markers such as ERK and significantly improved the expression of odontogenic-related markers such as alkaline phosphatase (ALP), dentin matrix protein-1 (DMP-1), and osteocalcin (OC). The calcium deposition assays were also significantly enhanced in the CS-containing scaffold. Our results demonstrated that CS/GelMa scaffolds were not only enhanced in terms of their physicochemical behaviors but the odontogenesis of the hDPSCs was also promoted as compared to GelMa scaffolds. These results demonstrated that CS/GelMa scaffolds can serve as cell-laden materials for future clinical applications and use in dentin regeneration.
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Affiliation(s)
- Yi-Ting Lin
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan; (Y.-T.L.); (C.-T.K.)
| | - Tuan-Ti Hsu
- x-Dimension Center for Medical Research and Translation, China Medical University Hospital, Taichung 404332, Taiwan; (T.-T.H.); (Y.-W.L.)
| | - Yu-Wei Liu
- x-Dimension Center for Medical Research and Translation, China Medical University Hospital, Taichung 404332, Taiwan; (T.-T.H.); (Y.-W.L.)
| | - Chia-Tze Kao
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan; (Y.-T.L.); (C.-T.K.)
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
| | - Tsui-Hsien Huang
- School of Dentistry, Chung Shan Medical University, Taichung 40201, Taiwan; (Y.-T.L.); (C.-T.K.)
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung 40201, Taiwan
- Correspondence: ; Tel.: +886-4-22967979 (ext. 3700)
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Sharma D, Mathur VP, Satapathy BK. Biodegradable and Biocompatible 3D Constructs for Dental Applications: Manufacturing Options and Perspectives. Ann Biomed Eng 2021; 49:2030-2056. [PMID: 34318403 DOI: 10.1007/s10439-021-02839-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Designing 3D constructs with appropriate materials and structural frameworks for complex dental restorative/regenerative procedures has always remained a multi-criteria optimization challenge. In this regard, 3D printing has long been known to be a potent tool for various tissue regenerative applications, however, the preparation of biocompatible, biodegradable, and stable inks is yet to be explored and revolutionized for overall performance improvisation. The review reports the currently employed manufacturing processes for the development of engineered self-supporting, easily processable, and cost-effective 3D constructs with target-specific tuneable mechanics, bioactivity, and degradability aspects in the oral cavity for their potential use in numerous dental applications ranging from soft pulp tissues to hard alveolar bone tissues. A hybrid synergistic approach, comprising of development of multi-layered, structurally stable, composite building blocks with desired physicomechanical performance and bioactivity presents an optimal solution to circumvent the major limitations and develop new-age advanced dental restorations and implants. Further, the review summarizes some manufacturing perspectives which may inspire the readers to design appropriate structures for clinical trials so as to pave the way for their routine applications in dentistry in the near future.
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Affiliation(s)
- Deepika Sharma
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
| | - Vijay Prakash Mathur
- Division of Pedodontics and Preventive Dentistry, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Bhabani K Satapathy
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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