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Patel KD, Keskin-Erdogan Z, Sawadkar P, Nik Sharifulden NSA, Shannon MR, Patel M, Silva LB, Patel R, Chau DYS, Knowles JC, Perriman AW, Kim HW. Oxidative stress modulating nanomaterials and their biochemical roles in nanomedicine. NANOSCALE HORIZONS 2024. [PMID: 39018043 DOI: 10.1039/d4nh00171k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
Many pathological conditions are predominantly associated with oxidative stress, arising from reactive oxygen species (ROS); therefore, the modulation of redox activities has been a key strategy to restore normal tissue functions. Current approaches involve establishing a favorable cellular redox environment through the administration of therapeutic drugs and redox-active nanomaterials (RANs). In particular, RANs not only provide a stable and reliable means of therapeutic delivery but also possess the capacity to finely tune various interconnected components, including radicals, enzymes, proteins, transcription factors, and metabolites. Here, we discuss the roles that engineered RANs play in a spectrum of pathological conditions, such as cancer, neurodegenerative diseases, infections, and inflammation. We visualize the dual functions of RANs as both generator and scavenger of ROS, emphasizing their profound impact on diverse cellular functions. The focus of this review is solely on inorganic redox-active nanomaterials (inorganic RANs). Additionally, we deliberate on the challenges associated with current RANs-based approaches and propose potential research directions for their future clinical translation.
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Affiliation(s)
- Kapil D Patel
- John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601, Australia.
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- School of Cellular and Molecular Medicine, University of Bristol, BS8 1TD, UK
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
| | - Zalike Keskin-Erdogan
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK
- Department of Chemical Engineering, Imperial College London, Exhibition Rd, South Kensington, SW7 2BX, London, UK
| | - Prasad Sawadkar
- Division of Surgery and Interventional Science, UCL, London, UK
- The Griffin Institute, Northwick Park Institute for Medical Research, Northwick Park and St Mark's Hospitals, London, HA1 3UJ, UK
| | - Nik Syahirah Aliaa Nik Sharifulden
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK
| | - Mark Robert Shannon
- John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601, Australia.
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- School of Cellular and Molecular Medicine, University of Bristol, BS8 1TD, UK
| | - Madhumita Patel
- Department of Chemistry and Nanoscience, Ewha Women University, 52 Ewhayeodae-gil, Seodaemun-gu, Seoul 03760, Republic of Korea
| | - Lady Barrios Silva
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK
| | - Rajkumar Patel
- Energy & Environment Sciences and Engineering (EESE), Integrated Sciences and Engineering Division (ISED), Underwood International College, Yonsei University, 85 Songdongwahak-ro, Yeonsungu, Incheon 21938, Republic of Korea
| | - David Y S Chau
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK
| | - Jonathan C Knowles
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, University College London, Royal Free Hospital, Rowland Hill Street, NW3 2PF, London, UK
| | - Adam W Perriman
- John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601, Australia.
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- School of Cellular and Molecular Medicine, University of Bristol, BS8 1TD, UK
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 31116, Republic of Korea.
- Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine Research Center, Dankook University, Cheonan, 31116, Republic of Korea
- UCL Eastman-Korea Dental Medicine Innovation Centre, Dankook University, Cheonan, 31116, Republic of Korea
- Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan 31116, Republic of Korea
- Cell & Matter Institute, Dankook University, Cheonan 31116, Republic of Korea
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2
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Verbist M, Vandevelde AL, Geusens J, Sun Y, Shaheen E, Willaert R. Reconstruction of Craniomaxillofacial Bone Defects with 3D-Printed Bioceramic Implants: Scoping Review and Clinical Case Series. J Clin Med 2024; 13:2805. [PMID: 38792347 PMCID: PMC11122134 DOI: 10.3390/jcm13102805] [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: 03/19/2024] [Revised: 04/27/2024] [Accepted: 05/08/2024] [Indexed: 05/26/2024] Open
Abstract
Reconstruction of craniomaxillofacial bone defects using 3D-printed hydroxyapatite (HA) bioceramic patient-specific implants (PSIs) is a new technique with great potential. This study aimed to investigate the advantages, disadvantages, and clinical outcomes of these implants in craniomaxillofacial surgeries. The PubMed and Embase databases were searched for patients with craniomaxillofacial bone defects treated with bioceramic PSIs. Clinical outcomes such as biocompatibility, biomechanical properties, and aesthetics were evaluated and compared to those of commonly used titanium or poly-ether-ether-ketone (PEEK) implants and autologous bone grafts. Two clinical cases are presented to illustrate the surgical procedure and clinical outcomes of HA bioceramic PSIs. Literature review showed better a biocompatibility of HA PSIs than titanium and PEEK. The initial biomechanical properties were inferior to those of autologous bone grafts, PEEK, and titanium but improved when integrated. Satisfactory aesthetic results were found in our two clinical cases with good stability and absence of bone resorption or infection. Radiological signs of osteogenesis were observed in the two clinical cases six months postoperatively. HA bioceramic PSIs have excellent biocompatible properties and imitate natural bone biomechanically and radiologically. They are a well-suited alternative for conventional biomaterials in the reconstruction of load-sharing bone defects in the craniomaxillofacial region.
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Affiliation(s)
- Maarten Verbist
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
| | - Anne-Laure Vandevelde
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
| | - Joris Geusens
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
| | - Yi Sun
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
| | - Eman Shaheen
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
| | - Robin Willaert
- Department of Oral and Maxillofacial Surgery, University Hospitals Leuven, 3000 Leuven, Belgium
- OMFS IMPATH Research Group: Department of Oral and Maxillofacial Surgery, Imaging and Pathology, Leuven University Hospitals, 3000 Leuven, Belgium
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3
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Guo Q, Li P, Zhang Y, Yan H, Yan Q, Su R, Su W. Polydopamine-curcumin coating of titanium for remarkable antibacterial activity via synergistic photodynamic and photothermal properties. Photochem Photobiol 2024; 100:699-711. [PMID: 37882412 DOI: 10.1111/php.13870] [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: 06/16/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/27/2023]
Abstract
Combined photothermal therapy (PTT) and photodynamic therapy (PDT) has emerged as a novel and effective antibacterial strategy. In order to endow titanium (Ti) with antibacterial properties, the Ti-PDA-Cur composite was prepared using the excellent adhesion properties of polydopamine (PDA) to load curcumin (Cur) on the surface of Ti. The Ti-PDA-Cur coating can produce singlet oxygen (1O2) and heat under 405 + 808 nm light irradiation, which can effectively kill Staphylococcus aureus and Escherichia coli. Moreover, the cytotoxicity and hemolysis rate of Ti-PDA-Cur were low, indicating its good biocompatibility. Therefore, this study provided a new strategy for the development of new Ti implants.
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Affiliation(s)
- Qing Guo
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Peiyuan Li
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Ying Zhang
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Hongjun Yan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Qiuyan Yan
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Rixiang Su
- College of Pharmacy, Guangxi University of Chinese Medicine, Nanning, China
| | - Wei Su
- Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, Nanning Normal University, Nanning, China
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4
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Makurat-Kasprolewicz B, Wekwejt M, Ronowska A, Gajowiec G, Grodzicka M, Dzionk S, Ossowska A. Influence of Ultrasound on the Characteristics of CaP Coatings Generated Via the Micro-arc Oxidation Process in Relation to Biomedical Engineering. ACS Biomater Sci Eng 2024; 10:2100-2115. [PMID: 38502729 PMCID: PMC11005015 DOI: 10.1021/acsbiomaterials.3c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 01/10/2024] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
Over the past decade, bone tissue engineering has been at the core of attention because of an increasing number of implant surgeries. The purpose of this study was to obtain coatings on titanium (Ti) implants with improved properties in terms of biomedical applications and to investigate the effect of ultrasound (US) on these properties during the micro-arc oxidation (MAO) process. The influence of various process parameters, such as time and current density, as well as US mode, on the properties of such coatings was evaluated. Novel porous calcium-phosphate-based coatings were obtained on commercially pure Ti. Their microstructure, chemical composition, topography, wettability, nanomechanical properties, thickness, adhesion to the substrate, and corrosion resistance were analyzed. In addition, cytocompatibility evaluation was checked with the human osteoblasts. The properties of the coatings varied significantly, depending on applied process parameters. The US application during the MAO process contributes to the increase of coating thickness, porosity, roughness, and skewness, as well as augmented calcium incorporation. The most advantageous coating was obtained at a current of 136 mA, time 450 s, and unipolar rectangular US, as it exhibits high porosity, adequate wettability, and beneficial skewness, which enabled increased adhesion and proliferation of osteoblasts during in vitro studies. Finally, the conducted research demonstrated the influence of various UMAO process parameters, which allowed for the selection of appropriate Ti implant modification for specific biomedical utilization.
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Affiliation(s)
| | - Marcin Wekwejt
- Department
of Biomaterials Technology, Gdansk University
of Technology, 80-233 Gdańsk, Poland
| | - Anna Ronowska
- Department
of Laboratory Medicine, Medical University
of Gdańsk, 80-210 Gdańsk, Poland
| | - Grzegorz Gajowiec
- Department
of Materials Science and Technology, Gdansk
University of Technology, 80-233 Gdańsk, Poland
| | - Marlena Grodzicka
- Faculty
of Chemistry, Nicolaus Copernicus University
in Toruń, 87-100 Toruń, Poland
| | - Stefan Dzionk
- Department
of Manufacturing and Production Engineering, Gdansk University of Technology, 80-233 Gdańsk, Poland
| | - Agnieszka Ossowska
- Department
of Materials Science and Technology, Gdansk
University of Technology, 80-233 Gdańsk, Poland
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5
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Cajiao Checchin V, Cacciari RD, Rubert AA, Lieblich M, Caregnato P, Fagali NS, Fernández Lorenzo de Mele M. Innovative Anodic Treatment to Obtain Stable Metallic Silver Micropatches on TiO 2 Nanotubes: Structural, Electrochemical, and Photochemical Properties. ACS OMEGA 2024; 9:9644-9654. [PMID: 38434842 PMCID: PMC10905698 DOI: 10.1021/acsomega.3c09687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/09/2024] [Accepted: 01/15/2024] [Indexed: 03/05/2024]
Abstract
Electrochemical modification of the Ti surface to obtain TiO2 nanotubes (NT-Ti) has been proposed to enhance osseointegration in medical applications. However, susceptibility to microbial adhesion, linked to biomaterial-associated infections, and the high TiO2 band gap energy, which allows light absorption almost exclusively in the ultraviolet (UV) region, limit its applications. Modifying the TiO2 semiconductor with metals such as Ag has been suggested both for antimicrobial purposes and for absorbing light in the visible region. The formation of NT-Ti with Ag micropatches (Ag-NT-Ti) is pursued with the objective of enhancing the stability of the deposits and preventing cytotoxic levels of Ag cellular uptake. The innovative process proposed here involves immersing NT-Ti in a AgNO3 solution as the initial step. Diverging from previously reported electrochemical methods, this process incorporates anodization within the TiO2 oxide formation region instead of cathodic reduction generally employed by other researchers. The final step encompasses an annealing treatment. The treatments result in the in situ Ag1+ reduction and formation of stable and active micropatches of metallic Ag on the NT-Ti surface. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), Raman, diffuse reflectance spectroscopy (DRS), wettability assessment, and electrochemical characterizations were conducted to evaluate the modified surfaces. The well-known properties of NT-Ti surfaces were enhanced, leading to improved photocatalytic activity across both visible and UV regions, significant stability against detachment, and controlled release of Ag1+ for promising antimicrobial effects.
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Affiliation(s)
- Valentina
C. Cajiao Checchin
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
| | - Rodolfo D. Cacciari
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
| | - Aldo A. Rubert
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
| | - Marcela Lieblich
- Centro
Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), 28040 Madrid, Spain
| | - Paula Caregnato
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
| | - Natalia S. Fagali
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
| | - Mónica Fernández Lorenzo de Mele
- Instituto
de Investigaciones Fisicoquímicas Teóricas y Aplicadas
(INIFTA), CCT La Plata, CONICET, Facultad de Ciencias Exactas, UNLP, C.C. 16 Suc. 4, 1900 La Plata, Argentina
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6
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Winiecki M, Stepczyńska M, Moraczewski K, Skowronski L, Trzcinski M, Rerek T, Malinowski R. Effect of Low-Temperature Oxygen Plasma Treatment of Titanium Alloy Surface on Tannic Acid Coating Deposition. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1065. [PMID: 38473537 DOI: 10.3390/ma17051065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 03/14/2024]
Abstract
In this study, the effect of low-temperature oxygen plasma treatment with various powers of a titanium alloy surface on the structural and morphological properties of a substrate and the deposition of a tannic acid coating was investigated. The surface characteristics of the titanium alloy were evaluated by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), atomic force microscopy (AFM), and contact angle measurements. Following this, the tannic acid coatings were deposited on the titanium alloy substrates and the structural and morphological properties of the tannic acid coatings deposited were subject to characterization by XPS, SEM, and spectroscopic ellipsometry (SE) measurements. The results show that the low-temperature oxygen plasma treatment of titanium alloys leads to the formation of titanium dioxides that contain -OH groups on the surface being accompanied by a reduction in carbon, which imparts hydrophilicity to the titanium substrate, and the effect increases with the applied plasma power. The performed titanium alloy substrate modification translates into the quality of the deposited tannic acid coating standing out by higher uniformity of the coating, lower number of defects indicating delamination or incomplete bonding of the coating with the substrate, lower number of cracks, thinner cracks, and higher thickness of the tannic acid coatings compared to the non-treated titanium alloy substrate. A similar effect is observed as the applied plasma power increases.
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Affiliation(s)
- Mariusz Winiecki
- Department of Constructional Materials and Biomaterials, Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Magdalena Stepczyńska
- Department of Polymer Materials Engineering, Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Krzysztof Moraczewski
- Department of Polymer Materials Engineering, Faculty of Materials Engineering, Kazimierz Wielki University, Chodkiewicza 30, 85-064 Bydgoszcz, Poland
| | - Lukasz Skowronski
- Division of Surface Science, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland
| | - Marek Trzcinski
- Division of Surface Science, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland
| | - Tomasz Rerek
- Division of Surface Science, Faculty of Chemical Technology and Engineering, Bydgoszcz University of Science and Technology, Kaliskiego 7, 85-796 Bydgoszcz, Poland
| | - Rafał Malinowski
- Łukasiewicz Research Network-Institute for Engineering of Polymer Materials and Dyes, Marii Skłodowskiej-Curie 55, 87-100 Torun, Poland
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Ali M, He Y, Chang ASN, Wu A, Liu J, Cao Y, Mohammad Y, Popat A, Walsh L, Ye Q, Xu C, Kumeria T. Osteoimmune-modulating and BMP-2-eluting anodised 3D printed titanium for accelerated bone regeneration. J Mater Chem B 2023; 12:97-111. [PMID: 37842835 DOI: 10.1039/d3tb01029e] [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: 10/17/2023]
Abstract
3D printing of titanium (Ti) metal has potential to transform the field of personalised orthopaedics and dental implants. However, the impacts of controlled surface topographical features of 3D printed Ti implants on their interactions with the cellular microenvironment and incorporation of biological growth factors, which are critical in guiding the integration of implants with bone, are not well studied. In the present study, we explore the role of surface topological features of 3D printed Ti implants using an anodised titania nanotube (TiNT) surface layer in guiding their immune cell interaction and ability to deliver bioactive form of growth factors. TiNT layers with precisely controlled pore diameter (between 21and 130 nm) were anodically grown on 3D printed Ti surfaces to impart a nano-micro rough topology. Immune biomarker profiles at gene and protein levels show that anodised 3D Ti surfaces with smaller pores resulted in classical activation of macrophages (M1-like), while larger pores (i.e., >100 nm) promoted alternate activation of macrophages (M2-like). The in vitro bone mineralisation studies using the conditioned media from the immunomodulatory studies elucidate a clear impact of pore diameter on bone mineralisation. The tubular structure of TiNTs was utilised as a container to incorporate recombinant human bone morphogenetic protein-2 (BMP-2) in the presence of various sugar and polymeric cryoprotectants. Sucrose offered the most sustainable release of preserved BMP-2 from TiNTs. Downstream effects of released BMP-2 on macrophages as well as bone mineralisation were assessed showing bioactivity retention of the released rhBMP-2. Overall, the TiNT surface topography in combination with controlled, sustained, and local release of bioactive growth factors can potentially enhance the osseointegration outcomes of custom 3D printed Ti implants in the clinic.
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Affiliation(s)
- Masood Ali
- Therapeutics Research Group, Frazer Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia
| | - Yan He
- Institute of Regenerative and Translational Medicine, Wuhan University of Science and Technology, Wuhan 430040, China
| | - Anna Sze Ni Chang
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Alice Wu
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Jingyu Liu
- School of Mechanical, Medical and process Engineering, Queensland University of Technology, Brisbane, Queensland 4000, Australia
| | - Yuxue Cao
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Yousuf Mohammad
- Therapeutics Research Group, Frazer Institute, Faculty of Medicine, University of Queensland, Brisbane, QLD 4102, Australia
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Amirali Popat
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
| | - Laurie Walsh
- School of Dentistry, The University of Queensland, Herston, Queensland 4006, Australia.
| | - Qingsong Ye
- Centre of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
| | - Chun Xu
- School of Dentistry, The University of Queensland, Herston, Queensland 4006, Australia.
| | - Tushar Kumeria
- School of Pharmacy, The University of Queensland, Brisbane, Queensland 4102, Australia.
- School of Materials Science and Engineering, University of New South Wales, Kensington, Sydney, New South Wales 2052, Australia
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8
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Zhang C, Zhou X, Wang D, Hao L, Zeng Z, Su L. Hydrogel-Loaded Exosomes: A Promising Therapeutic Strategy for Musculoskeletal Disorders. J Clin Pharm Ther 2023; 2023:1-36. [DOI: 10.1155/2023/1105664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2024]
Abstract
Clinical treatment strategies for musculoskeletal disorders have been a hot research topic. Accumulating evidence suggests that hydrogels loaded with MSC-derived EVs show great potential in improving musculoskeletal injuries. The ideal hydrogels should be capable of promoting the development of new tissues and simulating the characteristics of target tissues, with the properties matching the cell-matrix constituents of autologous tissues. Although there have been numerous reports of hydrogels loaded with MSC-derived EVs for the repair of musculoskeletal injuries, such as intervertebral disc injury, tendinopathy, bone fractures, and cartilage injuries, there are still many hurdles to overcome before the clinical application of modified hydrogels. In this review, we focus on the advantages of the isolation technique of EVs in combination with different types of hydrogels. In this context, the efficacy of hydrogels loaded with MSC-derived EVs in different musculoskeletal injuries is discussed in detail to provide a reference for the future application of hydrogels loaded with MSC-derived EVs in the clinical treatment of musculoskeletal injuries.
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Affiliation(s)
- Chunyu Zhang
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Xuchang Zhou
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Dongxue Wang
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
| | - Li Hao
- Shougang Technician College, Nursing School, Beijing 100043, China
- Department of Rehabilitation, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510000, China
| | - Zhipeng Zeng
- School of Sport Medicine and Rehabilitation, Beijing Sport University, Beijing 100084, China
- Shougang Technician College, Nursing School, Beijing 100043, China
- Department of Rehabilitation, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510000, China
| | - Lei Su
- Department of Rehabilitation, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510000, China
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9
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Yazdanian A, Jahandideh A, Hesaraki S. The effect of green synthesis of TiO 2 nanoparticles/collagen/HA scaffold in bone regeneration: As an animal study. Vet Med Sci 2023; 9:2342-2351. [PMID: 37485579 PMCID: PMC10508526 DOI: 10.1002/vms3.1222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/03/2023] [Accepted: 07/06/2023] [Indexed: 07/25/2023] Open
Abstract
BACKGROUND The bone defects cannot heal by themselves when their range exceeds the critical size defect (CSD). In clinical treatment, significant bone defects are often caused by trauma, developmental deformity, tumour resection and infection. OBJECTIVES The purpose of this study was to investigate the effect of green synthesis of TiO2 from propolis extract/collagen/HA (Hydroxyapatite) scaffolds on bone regeneration in rats. METHODS Water uptake, biodegradability, porosity and biodegradation of the scaffolds were evaluated after they were synthesised using freeze-dry method. Cell viability by MTT assay was then evaluated. During the 4, 8 and 12 weeks following the scaffold implantation, the bone regeneration was evaluated using macroscopic and microscopic tests to determine the effectiveness of green synthesis of TiO2 from propolis extract/collagen/HA scaffolds. RESULTS Compared to the HA/Coll scaffold, ProTiO2 /HA/Coll scaffold was reduced porosity, water absorption and degradability porosity. Based on in vitro tests, both synthetic scaffolds induced cell growth and were less toxic and stimulated cell growth. Based on histopathological testing, the ProTiO2 /HA/Coll scaffolds formed high levels of bone during 12 weeks in comparison with HA/Coll and control group. CONCLUSIONS ProTiO2 /HA/Coll composite can be used in regenerative medicine, bone fillers and scaffolds. As a result, this research suggests that ProTiO2 /HA/Coll composites could be promising candidates for bone regeneration.
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Affiliation(s)
- Alireza Yazdanian
- Department of Veterinary Medicine, Science and Research BranchIslamic Azad UniversityTehranIran
| | - Alireza Jahandideh
- Faculty of Veterinary Medicine, Science and Research BranchDepartment of Clinical SciencesIslamic Azad UniversityTehranIran
| | - Saeed Hesaraki
- Faculty of Specialized Veterinary Science, Science and Research BranchDepartment of PathobiologyIslamic Azad UniversityTehranIran
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10
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Romano IR, D'Angeli F, Vicario N, Russo C, Genovese C, Lo Furno D, Mannino G, Tamburino S, Parenti R, Giuffrida R. Adipose-Derived Mesenchymal Stromal Cells: A Tool for Bone and Cartilage Repair. Biomedicines 2023; 11:1781. [PMID: 37509421 PMCID: PMC10376676 DOI: 10.3390/biomedicines11071781] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/30/2023] Open
Abstract
The osteogenic and chondrogenic differentiation ability of adipose-derived mesenchymal stromal cells (ASCs) and their potential therapeutic applications in bone and cartilage defects are reported in this review. This becomes particularly important when these disorders can only be poorly treated by conventional therapeutic approaches, and tissue engineering may represent a valuable alternative. Being of mesodermal origin, ASCs can be easily induced to differentiate into chondrocyte-like and osteocyte-like elements and used to repair damaged tissues. Moreover, they can be easily harvested and used for autologous implantation. A plethora of ASC-based strategies are being developed worldwide: they include the transplantation of freshly harvested cells, in vitro expanded cells or predifferentiated cells. Moreover, improving their positive effects, ASCs can be implanted in combination with several types of scaffolds that ensure the correct cell positioning; support cell viability, proliferation and migration; and may contribute to their osteogenic or chondrogenic differentiation. Examples of these strategies are described here, showing the enormous therapeutic potential of ASCs in this field. For safety and regulatory issues, most investigations are still at the experimental stage and carried out in vitro and in animal models. Clinical applications have, however, been reported with promising results and no serious adverse effects.
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Affiliation(s)
- Ivana Roberta Romano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Floriana D'Angeli
- Department of Human Sciences and Quality of Life Promotion, San Raffaele Roma Open University, 00166 Rome, Italy
| | - Nunzio Vicario
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Cristina Russo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Carlo Genovese
- Faculty of Medicine and Surgery, "Kore" University of Enna, 94100 Enna, Italy
| | - Debora Lo Furno
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Giuliana Mannino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98122 Messina, Italy
| | - Serena Tamburino
- Chi.Pla Chirurgia Plastica, Via Suor Maria Mazzarello, 54, 95128 Catania, Italy
| | - Rosalba Parenti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Rosario Giuffrida
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
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11
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Gharibshahian M, Salehi M, Beheshtizadeh N, Kamalabadi-Farahani M, Atashi A, Nourbakhsh MS, Alizadeh M. Recent advances on 3D-printed PCL-based composite scaffolds for bone tissue engineering. Front Bioeng Biotechnol 2023; 11:1168504. [PMID: 37469447 PMCID: PMC10353441 DOI: 10.3389/fbioe.2023.1168504] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/05/2023] [Indexed: 07/21/2023] Open
Abstract
Population ageing and various diseases have increased the demand for bone grafts in recent decades. Bone tissue engineering (BTE) using a three-dimensional (3D) scaffold helps to create a suitable microenvironment for cell proliferation and regeneration of damaged tissues or organs. The 3D printing technique is a beneficial tool in BTE scaffold fabrication with appropriate features such as spatial control of microarchitecture and scaffold composition, high efficiency, and high precision. Various biomaterials could be used in BTE applications. PCL, as a thermoplastic and linear aliphatic polyester, is one of the most widely used polymers in bone scaffold fabrication. High biocompatibility, low cost, easy processing, non-carcinogenicity, low immunogenicity, and a slow degradation rate make this semi-crystalline polymer suitable for use in load-bearing bones. Combining PCL with other biomaterials, drugs, growth factors, and cells has improved its properties and helped heal bone lesions. The integration of PCL composites with the new 3D printing method has made it a promising approach for the effective treatment of bone injuries. The purpose of this review is give a comprehensive overview of the role of printed PCL composite scaffolds in bone repair and the path ahead to enter the clinic. This study will investigate the types of 3D printing methods for making PCL composites and the optimal compounds for making PCL composites to accelerate bone healing.
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Affiliation(s)
- Maliheh Gharibshahian
- Student Research Committee, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
- Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Nima Beheshtizadeh
- Regenerative Medicine Group (REMED), Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Amir Atashi
- Tissue Engineering and Stem Cells Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | | | - Morteza Alizadeh
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
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12
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A novel implant surface modification mode of Fe3O4-containing TiO2 nanorods with sinusoidal electromagnetic field for osteoblastogenesis and angiogenesis. Mater Today Bio 2023; 19:100590. [PMID: 36910272 PMCID: PMC9996442 DOI: 10.1016/j.mtbio.2023.100590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 02/24/2023] Open
Abstract
Implants made of Ti and its alloys are widely utilized in orthopaedic surgeries. However, insufficient osseointegration of the implants often causes complications such as aseptic loosening. Our previous research discovered that disordered titanium dioxide nanorods (TNrs) had satisfactory antibacterial properties and biocompatibility, but TNrs harmed angiogenic differentiation, which might retarded the osseointegration process of the implants. Magnetic nanomaterials have a certain potential in promoting osseointegration, electromagnetic fields within a specific frequency and intensity range can facilitate angiogenic and osteogenic differentiation. Therefore, this study used Fe3O4 to endow magnetism to TNrs and explored the regulation effects of Ti, TNrs, and Fe3O4-TNrs under 1 mT 15 Hz sinusoidal electromagnetic field (SEMF) on osteoblastogenesis, osseointegration, angiogenesis, and its mechanism. We discovered that after the addition of SEMF treatment to VR-EPCs cultured on Fe3O4-TNrs, the calcineurin/NFAT signaling pathway was activated, which then reversed the inhibitory effect of Fe3O4-TNrs on angiogenesis. Besides, Fe3O4-TNrs with SEMF enhanced osteogenic differentiation and osseointegration. Therefore, the implant modification mode of Fe3O4-TNrs with the addition of SEMF could more comprehensively promote osseointegration and provided a new idea for the modification of implants.
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13
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Banaye Yazdipour A, Masoorian H, Ahmadi M, Mohammadzadeh N, Ayyoubzadeh SM. Predicting the toxicity of nanoparticles using artificial intelligence tools: a systematic review. Nanotoxicology 2023; 17:62-77. [PMID: 36883698 DOI: 10.1080/17435390.2023.2186279] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Nanoparticles have been used extensively in different scientific fields. Due to the possible destructive effects of nanoparticles on the environment or the biological systems, their toxicity evaluation is a crucial phase for studying nanomaterial safety. In the meantime, experimental approaches for toxicity assessment of various nanoparticles are expensive and time-consuming. Thus, an alternative technique, such as artificial intelligence (AI), could be valuable for predicting nanoparticle toxicity. Therefore, in this review, the AI tools were investigated for the toxicity assessment of nanomaterials. To this end, a systematic search was performed on PubMed, Web of Science, and Scopus databases. Articles were included or excluded based on pre-defined inclusion and exclusion criteria, and duplicate studies were excluded. Finally, twenty-six studies were included. The majority of the studies were conducted on metal oxide and metallic nanoparticles. In addition, Random Forest (RF) and Support Vector Machine (SVM) had the most frequency in the included studies. Most of the models demonstrated acceptable performance. Overall, AI could provide a robust, fast, and low-cost tool for the evaluation of nanoparticle toxicity.
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Affiliation(s)
- Alireza Banaye Yazdipour
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran.,Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences, Tehran, Iran
| | - Hoorie Masoorian
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahnaz Ahmadi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Niloofar Mohammadzadeh
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Ayyoubzadeh
- Department of Health Information Management, School of Allied Medical Sciences, Tehran University of Medical Sciences, Tehran, Iran
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14
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Zhao H, Liu C, Liu Y, Ding Q, Wang T, Li H, Wu H, Ma T. Harnessing electromagnetic fields to assist bone tissue engineering. Stem Cell Res Ther 2023; 14:7. [PMID: 36631880 PMCID: PMC9835389 DOI: 10.1186/s13287-022-03217-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 12/08/2022] [Indexed: 01/13/2023] Open
Abstract
Bone tissue engineering (BTE) emerged as one of the exceptional means for bone defects owing to it providing mechanical supports to guide bone tissue regeneration. Great advances have been made to facilitate the success of BTE in regenerating bone within defects. The use of externally applied fields has been regarded as an alternative strategy for BTE. Electromagnetic fields (EMFs), known as a simple and non-invasive therapy, can remotely provide electric and magnetic stimulation to cells and biomaterials, thus applying EMFs to assist BTE would be a promising strategy for bone regeneration. When combined with BTE, EMFs improve cell adhesion to the material surface by promoting protein adsorption. Additionally, EMFs have positive effects on mesenchymal stem cells and show capabilities of pro-angiogenesis and macrophage polarization manipulation. These advantages of EMFs indicate that it is perfectly suitable for representing the adjuvant treatment of BTE. We also summarize studies concerning combinations of EMFs and diverse biomaterial types. The strategy of combining EMFs and BTE receives encouraging outcomes and holds a promising future for effectively treating bone defects.
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Affiliation(s)
- Hongqi Zhao
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Chaoxu Liu
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Yang Liu
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Qing Ding
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Tianqi Wang
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Hao Li
- grid.33199.310000 0004 0368 7223Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030 Hubei China
| | - Hua Wu
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
| | - Tian Ma
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei, China.
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15
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Abstract
Surface characteristics are an important factor for long-term clinical success of dental implants. Alterations of implant surface characteristics accelerate or improve osseointegration by interacting with the physiology of bone healing. Dental implant surfaces have been traditionally modified at the microlevel. Recently, researchers have actively investigated nano-modifications in dental implants. This review explores implant surface modifications that enhance biological response at the interface between a bone and the implant.
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Affiliation(s)
- In-Sung Luke Yeo
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-Ro, Jongro-Gu, Seoul 03080, Korea.
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16
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Buj-Corral I, Tejo-Otero A. 3D Printing of Bioinert Oxide Ceramics for Medical Applications. J Funct Biomater 2022; 13:155. [PMID: 36135590 PMCID: PMC9505679 DOI: 10.3390/jfb13030155] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 11/23/2022] Open
Abstract
Three-dimensionally printed metals and polymers have been widely used and studied in medical applications, yet ceramics also require attention. Ceramics are versatile materials thanks to their excellent properties including high mechanical properties and hardness, good thermal and chemical behavior, and appropriate, electrical, and magnetic properties, as well as good biocompatibility. Manufacturing complex ceramic structures employing conventional methods, such as ceramic injection molding, die pressing or machining is extremely challenging. Thus, 3D printing breaks in as an appropriate solution for complex shapes. Amongst the different ceramics, bioinert ceramics appear to be promising because of their physical properties, which, for example, are similar to those of a replaced tissue, with minimal toxic response. In this way, this review focuses on the different medical applications that can be achieved by 3D printing of bioinert ceramics, as well as on the latest advances in the 3D printing of bioinert ceramics. Moreover, an in-depth comparison of the different AM technologies used in ceramics is presented to help choose the appropriate methods depending on the part geometry.
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17
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Zhang Z, Yang X, Cao X, Qin A, Zhao J. Current applications of adipose-derived mesenchymal stem cells in bone repair and regeneration: A review of cell experiments, animal models, and clinical trials. Front Bioeng Biotechnol 2022; 10:942128. [PMID: 36159705 PMCID: PMC9490047 DOI: 10.3389/fbioe.2022.942128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
In the field of orthopaedics, bone defects caused by severe trauma, infection, tumor resection, and skeletal abnormalities are very common. However, due to the lengthy and painful process of related surgery, people intend to shorten the recovery period and reduce the risk of rejection; as a result, more attention is being paid to bone regeneration with mesenchymal stromal cells, one of which is the adipose-derived mesenchymal stem cells (ASCs) from adipose tissue. After continuous subculture and cryopreservation, ASCs still have the potential for multidirectional differentiation. They can be implanted in the human body to promote bone repair after induction in vitro, solve the problems of scarce sources and large damage, and are expected to be used in the treatment of bone defects and non-union fractures. However, the diversity of its differentiation lineage and the lack of bone formation potential limit its current applications in bone disease. Here, we concluded the current applications of ASCs in bone repair, especially with the combination and use of physical and biological methods. ASCs alone have been proved to contribute to the repair of bone damage in vivo and in vitro. Attaching to bone scaffolds or adding bioactive molecules can enhance the formation of the bone matrix. Moreover, we further evaluated the efficiency of ASC-committed differentiation in the bone in conditions of cell experiments, animal models, and clinical trials. The results show that ASCs in combination with synthetic bone grafts and biomaterials may affect the regeneration, augmentation, and vascularization of bone defects on bone healing. The specific conclusion of different materials applied with ASCs may vary. It has been confirmed to benefit osteogenesis by regulating osteogenic signaling pathways and gene transduction. Exosomes secreted by ASCs also play an important role in osteogenesis. This review will illustrate the understanding of scientists and clinicians of the enormous promise of ASCs’ current applications and future development in bone repair and regeneration, and provide an incentive for superior employment of such strategies.
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Affiliation(s)
- Zhengyue Zhang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Ninth People’s Hospital, Shanghai, China
| | - Xiao Yang
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Xiankun Cao
- Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - An Qin
- Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: An Qin, ; Jie Zhao,
| | - Jie Zhao
- Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: An Qin, ; Jie Zhao,
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18
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Influence of Magnesium Content on the Physico-Chemical Properties of Hydroxyapatite Electrochemically Deposited on a Nanostructured Titanium Surface. COATINGS 2022. [DOI: 10.3390/coatings12081097] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The aim of this research was to obtain hydroxyapatite (HAp)-based coatings doped with different concentrations of Mg on a Ti nanostructured surface through electrochemical techniques and to evaluate the influence of Mg content on the properties of HAp. The undoped and doped HAp-based coatings were electrochemically deposited in galvanostatic pulsed mode on titania nanotubes with a diameter of ~72 nm, being designed to enhance the adhesion of the HAp coatings to the Ti substrate. The obtained materials were investigated by Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), X-Ray Diffraction (XRD), and Fourier-Transform Infra-Red spectroscopy (FTIR). The adhesion of the coatings to the substrate was also evaluated with the help of the “tape-test” and the micro-scratch test. The morphology (SEM) of all the coatings is made of very thin and narrow ribbon-like crystals, with some alterations with respect to the Mg amount in the coatings. Thus, a concentration of 1 mM of Mg in the electrolyte leads to wider and thicker ribbon-like crystals, while a concentration of 1.5 mM in the electrolyte generated a morphology that resembles the undoped HAp. Both phase composition (XRD) and chemical bonds (FTIR) analysis proved the formation of HAp in all coatings. Moreover, according to XRD, all coatings have a strong orientation toward the (002) plane. Irrespective of the Mg content, all coatings registered an average roughness between approx. 500 and 600 nm, while the coating thickness increased after addition of Mg, from a value of 9.6 μm, for the undoped HAp, to 11.3 μm and ~13.7 μm for H/Mg1 and H/Mg2, respectively. In terms of adhesion, it was shown that the coatings a H/Mg2 had a poorer adhesion when compared to H/Mg1 and the undoped HAp (H), which registered similar adhesion, indicating that a concentration of 1.5 mM of Mg in the electrolyte reduces the adhesion of the Hap-based coatings to the nanostructured surface. The obtained results indicated that Mg concentrations up to 1 mM in the electrolyte can enhance the properties of HAp-based coatings electrochemically deposited on a nanostructured surface, while even a slightly higher concentration of 1.5 mM can negatively impact the characteristics of HAp coatings.
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19
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A Bibliometric Analysis of Electrospun Nanofibers for Dentistry. J Funct Biomater 2022; 13:jfb13030090. [PMID: 35893458 PMCID: PMC9326643 DOI: 10.3390/jfb13030090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 02/04/2023] Open
Abstract
Electrospun nanofibers have been widely used in dentistry due to their excellent properties, such as high surface area and high porosity, this bibliometric study aimed to review the application fields, research status, and development trends of electrospun nanofibers in different fields of dentistry in recent years. All of the data were obtained from the Web of Science from 2004 to 2021. Origin, Microsoft Excel, VOSviewer, and Carrot2 were used to process, analyze, and evaluate the publication year, countries/region, affiliations, authors, citations, keywords, and journal data. After being refined by the year of publication, document types and research fields, a total of 378 publications were included in this study, and an increasing number of publications was evident. Through linear regression calculations, it is predicted that the number of published articles in 2022 will be 66. The most published journal about electrospun dental materials is Materials Science & Engineering C-Materials for Biological Applications, among the six core journals identified, the percent of journals with Journal Citation Reports (JCR) Q1 was 60%. A total of 17.60% of the publications originated from China, and the most productive institution was the University of Sheffield. Among all the 1949 authors, the most productive author was Marco C. Bottino. Most electrospun dental nanofibers are used in periodontal regeneration, and Polycaprolactone (PCL) is the most frequently used material in all studies. With the global upsurge in research on electrospun dental materials, bone regeneration, tissue regeneration, and cell differentiation and proliferation will still be the research hotspots of electrospun dental materials in recent years. Extensive collaboration and citations among authors, institutions and countries will also reach a new level.
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20
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Li L, Dong R, Liu T, Yang Y, Chang H, Meng X, Deng Y, Wang Q, Zhao Y, Song G, Hu Y. Nano-titanium dioxide exposure and autophagy: a systematic review and meta-analysis. TOXIN REV 2022. [DOI: 10.1080/15569543.2022.2084419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Li Li
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Ruoyun Dong
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Tao Liu
- Institute of Disaster and Emergency Medicine, Tianjin University, Tianjin, PR China
| | - Yaqian Yang
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Hongmei Chang
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Xiaojia Meng
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Yaxin Deng
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Qianqian Wang
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Yiman Zhao
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Guanling Song
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
| | - Yunhua Hu
- Department of Preventive Medicine/the Key Laboratories for Xinjiang Endemic and Ethnic Diseases, School of Medicine, Shihezi University, Shihezi, PR China
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21
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Kim JC, Lee M, Yeo ISL. Three interfaces of the dental implant system and their clinical effects on hard and soft tissues. MATERIALS HORIZONS 2022; 9:1387-1411. [PMID: 35293401 DOI: 10.1039/d1mh01621k] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Anatomically, the human tooth has structures both embedded within and forming part of the exterior surface of the human body. When a tooth is lost, it is often replaced by a dental implant, to facilitate the chewing of food and for esthetic purposes. For successful substitution of the lost tooth, hard tissue should be integrated into the implant surface. The microtopography and chemistry of the implant surface have been explored with the aim of enhancing osseointegration. Additionally, clinical implant success is dependent on ensuring that a barrier, comprising strong gingival attachment to an abutment, does not allow the infiltration of oral bacteria into the bone-integrated surface. Epithelial and connective tissue cells respond to the abutment surface, depending on its surface characteristics and the materials from which it is made. In particular, the biomechanics of the implant-abutment connection structure (i.e., the biomechanics of the interface between implant and abutment surfaces, and the screw mechanics of the implant-abutment assembly) are critical for both the soft tissue seal and hard tissue integration. Herein, we discuss the clinical importance of these three interfaces: bone-implant, gingiva-abutment, and implant-abutment.
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Affiliation(s)
- Jeong Chan Kim
- Department of Periodontology, Seoul National University School of Dentistry, Seoul 03080, Korea
| | - Min Lee
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - In-Sung Luke Yeo
- Department of Prosthodontics, School of Dentistry and Dental Research Institute, Seoul National University, 101 Daehak-Ro, Jongro-Gu, Seoul 03080, Korea.
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22
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Wu B, Tang Y, Wang K, Zhou X, Xiang L. Nanostructured Titanium Implant Surface Facilitating Osseointegration from Protein Adsorption to Osteogenesis: The Example of TiO 2 NTAs. Int J Nanomedicine 2022; 17:1865-1879. [PMID: 35518451 PMCID: PMC9064067 DOI: 10.2147/ijn.s362720] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/20/2022] [Indexed: 02/05/2023] Open
Abstract
Titanium implants have been widely applied in dentistry and orthopedics due to their biocompatibility and resistance to mechanical fatigue. TiO2 nanotube arrays (TiO2 NTAs) on titanium implant surfaces have exhibited excellent biocompatibility, bioactivity, and adjustability, which can significantly promote osseointegration and participate in its entire path. In this review, to give a comprehensive understanding of the osseointegration process, four stages have been divided according to pivotal biological processes, including protein adsorption, inflammatory cell adhesion/inflammatory response, additional relevant cell adhesion and angiogenesis/osteogenesis. The impact of TiO2 NTAs on osseointegration is clarified in detail from the four stages. The nanotubular layer can manipulate the quantity, the species and the conformation of adsorbed protein. For inflammatory cells adhesion and inflammatory response, TiO2 NTAs improve macrophage adhesion on the surface and induce M2-polarization. TiO2 NTAs also facilitate the repairment-related cells adhesion and filopodia formation for additional relevant cells adhesion. In the angiogenesis and osteogenesis stage, TiO2 NTAs show the ability to induce osteogenic differentiation and the potential for blood vessel formation. In the end, we propose the multi-dimensional regulation of TiO2 NTAs on titanium implants to achieve highly efficient manipulation of osseointegration, which may provide views on the rational design and development of titanium implants.
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Affiliation(s)
- Bingfeng Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Yufei Tang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China.,Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Kai Wang
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Xuemei Zhou
- School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - Lin Xiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China.,Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, People's Republic of China
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23
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Álvarez-López A, Colchero L, Elices M, Guinea GV, Pérez-Rigueiro J, González-Nieto D. Improved cell adhesion to activated vapor silanization-biofunctionalized Ti-6Al-4V surfaces with ECM-derived oligopeptides. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 133:112614. [PMID: 35527152 DOI: 10.1016/j.msec.2021.112614] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 12/09/2021] [Accepted: 12/12/2021] [Indexed: 01/22/2023]
Abstract
Titanium implants are widely used in traumatology and various orthopedic fields. Titanium and other metallic-based implants have limited structural and functional integration into the body, which translates into progressive prosthesis instability and the need for new surgical interventions that have enormous social and economic impacts. To enhance the biocompatibility of titanium implants, numerous biofunctionalization strategies have been developed. However, the problem persists, as more than 70% of implant failures are due to aseptic loosening. In this study we addressed the problem of improving the physiological engraftability and acceptability of titanium-based implants by applying a robust and versatile functionalization method based on the covalent immobilization of extracellular matrix (ECM)-derived oligopeptides on Ti-6Al-4V surfaces treated by activated vapor silanization (AVS). The feasibility of this technique was evaluated with two oligopeptides of different structures and compositions. These oligopeptides were immobilized on Ti-6Al-4V substrates by a combination of AVS and N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride/N-hydroxysuccinimide (EDC/NHS) crosslinking chemistry. The immobilization was shown to be stable and resistant to chemical denaturing upon sodium dodecyl sulfate treatment. On Ti-6Al-4V surfaces both peptides increased the attachment, spreading, rearrangement and directional growth of mesenchymal stem and progenitor cells (MSC) with chondro- and osteo-regenerative capacities. We also found that this biofunctionalization method (AVS-EDC/NHS) increased the attachment capacity of an immortalized cell line of neural origin with poor adhesive properties, highlighting the versatility and robustness of this method in terms of potential oligopeptides that may be used, and cell lineages whose anchorage to the biomaterial may be enhanced. Collectively, this novel functionalization strategy can accelerate the development of advanced peptide-functionalized metallic surfaces, which, in combination with host or exogenously implanted stem cells, have the potential to positively affect the osteoregenerative and osteointegrative abilities of metallic-based prostheses.
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Affiliation(s)
- Aroa Álvarez-López
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Luis Colchero
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Manuel Elices
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
| | - Gustavo V Guinea
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain; Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain
| | - José Pérez-Rigueiro
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain; Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain; Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), Calle Prof. Martín Lagos s/n, 28040 Madrid, Spain.
| | - Daniel González-Nieto
- Center for Biomedical Technology, Universidad Politécnica de Madrid, 28223 Pozuelo de Alarcón, Madrid, Spain; Departamento de Tecnología Fotónica y Bioingeniería, ETSI Telecomunicaciones, Universidad Politécnica de Madrid, 28040 Madrid, Spain; Biomedical Research Networking Center in Bioengineering Biomaterials and Nanomedicine (CIBER-BBN), 28029 Madrid, Spain.
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24
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Rastin H, Mansouri N, Tung TT, Hassan K, Mazinani A, Ramezanpour M, Yap PL, Yu L, Vreugde S, Losic D. Converging 2D Nanomaterials and 3D Bioprinting Technology: State-of-the-Art, Challenges, and Potential Outlook in Biomedical Applications. Adv Healthc Mater 2021; 10:e2101439. [PMID: 34468088 DOI: 10.1002/adhm.202101439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Indexed: 12/17/2022]
Abstract
The development of next-generation of bioinks aims to fabricate anatomical size 3D scaffold with high printability and biocompatibility. Along with the progress in 3D bioprinting, 2D nanomaterials (2D NMs) prove to be emerging frontiers in the development of advanced materials owing to their extraordinary properties. Harnessing the properties of 2D NMs in 3D bioprinting technologies can revolutionize the development of bioinks by endowing new functionalities to the current bioinks. First the main contributions of 2D NMS in 3D bioprinting technologies are categorized here into six main classes: 1) reinforcement effect, 2) delivery of bioactive molecules, 3) improved electrical conductivity, 4) enhanced tissue formation, 5) photothermal effect, 6) and stronger antibacterial properties. Next, the recent advances in the use of each certain 2D NMs (1) graphene, 2) nanosilicate, 3) black phosphorus, 4) MXene, 5) transition metal dichalcogenides, 6) hexagonal boron nitride, and 7) metal-organic frameworks) in 3D bioprinting technology are critically summarized and evaluated thoroughly. Third, the role of physicochemical properties of 2D NMSs on their cytotoxicity is uncovered, with several representative examples of each studied 2D NMs. Finally, current challenges, opportunities, and outlook for the development of nanocomposite bioinks are discussed thoroughly.
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Affiliation(s)
- Hadi Rastin
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Negar Mansouri
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- School of Electrical and Electronic Engineering The University of Adelaide South Australia 5005 Australia
| | - Tran Thanh Tung
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Kamrul Hassan
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Arash Mazinani
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Mahnaz Ramezanpour
- Department of Surgery‐Otolaryngology Head and Neck Surgery The University of Adelaide Woodville South 5011 Australia
| | - Pei Lay Yap
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Le Yu
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
| | - Sarah Vreugde
- Department of Surgery‐Otolaryngology Head and Neck Surgery The University of Adelaide Woodville South 5011 Australia
| | - Dusan Losic
- School of Chemical Engineering and Advanced Materials The University of Adelaide South Australia 5005 Australia
- ARC Research Hub for Graphene Enabled Industry Transformation The University of Adelaide South Australia 5005 Australia
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25
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Compressive Strength of Conventional Glass Ionomer Cement Modified with TiO 2 Nano-Powder and Marine-Derived HAp Micro-Powder. MATERIALS 2021; 14:ma14174964. [PMID: 34501056 PMCID: PMC8434552 DOI: 10.3390/ma14174964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/21/2021] [Accepted: 08/28/2021] [Indexed: 11/17/2022]
Abstract
The aim of this research was to investigate the compressive strength (CS), breaking strength (BS), and compressive modulus (CM) of conventional glass ionomer cement (GIC) modified with TiO2 nano particles, marine-derived hydroxyapatite (md-HAp) microparticles (<45 µm), and a combination of TiO2 NP and md-HAp particles. The materials used in the study were conventional GIC Fuji IX GP Extra (GC Corporation, Tokyo, Japan), TiO2 powder P25 (Degussa, Essen, Germany), and HAp synthesized from cuttlefish bone and ground in a mortar to obtain md-HAp powder. md-HAp was characterized using FTIR and SEM analysis. There were four groups of GIC samples: (i) Fuji IX control group, (ii) powder modified with 3 wt% TiO2, (iii) powder modified with 3 wt% HAp, and (iv) powder modified with 1.5 wt% TiO2 + 1.5 wt% HAp. Measurements were performed in a universal testing machine, and CS, BS, and CM were calculated. Statistical analysis was performed using ANOVA and Tukey’s tests. CS, BS, and CM differed significantly between the Fuji IX control group and all experimental groups while differences between the experimental groups were not statistically significant. The addition of TiO2 NP, md-HAp micro-sized particles, and a combination of TiO2 and md-HAp reduced the CS, BS, and CM of conventional GICs when mixed at the powder/liquid (p/l) ratio recommended by the manufacturer.
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26
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Winiecki M, Krawczyk P. Titanium-peroxy and peroxide complex functionalities on Ti-6Al-4V alloy effected by modification with active radicals. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Abstract
Implant-associated infections (IAIs) are among the most intractable and costly complications in implant surgery. They can lead to surgery failure, a high economic burden, and a decrease in patient quality of life. This manuscript is devoted to introducing current antimicrobial strategies for additively manufactured (AM) titanium (Ti) implants and fostering a better understanding in order to pave the way for potential modern high-throughput technologies. Most bactericidal strategies rely on implant structure design and surface modification. By means of rational structural design, the performance of AM Ti implants can be improved by maintaining a favorable balance between the mechanical, osteogenic, and antibacterial properties. This subject becomes even more important when working with complex geometries; therefore, it is necessary to select appropriate surface modification techniques, including both topological and chemical modification. Antibacterial active metal and antibiotic coatings are among the most commonly used chemical modifications in AM Ti implants. These surface modifications can successfully inhibit bacterial adhesion and biofilm formation, and bacterial apoptosis, leading to improved antibacterial properties. As a result of certain issues such as drug resistance and cytotoxicity, the development of novel and alternative antimicrobial strategies is urgently required. In this regard, the present review paper provides insights into the enhancement of bactericidal properties in AM Ti implants.
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28
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Li L, Yao L, Wang H, Shen X, Lou W, Huang C, Wu G. Magnetron sputtering of strontium nanolayer on zirconia implant to enhance osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112191. [PMID: 34225847 DOI: 10.1016/j.msec.2021.112191] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/21/2021] [Accepted: 05/13/2021] [Indexed: 10/21/2022]
Abstract
The zirconia implants have a wide range of clinical applications, however, the biological inertness and lack of osteoinductive properties limit these applications. Strontium possesses superior biocompatibility and excellent osteogenic properties. To take advantage of these, the strontium titanate-coated zirconia implants were prepared in this study by sandblasting, acid etching, and magnetron sputtering, followed by the analysis of the biological behavior. Briefly, the zirconia sheets were polished and subjected to sandblasting and acid etching. Subsequently, a nano‑strontium titanate coating was developed on the sheets by magnetron sputtering. The specimens were characterized by scanning electron microscopy (SEM), water contact angle measurement (WCA) and EDS mapping, which confirmed the physical alternation and successful deposition of the strontium titanate coating. The in vitro experiments indicated that the majority of the filopodia and actin fibers of the MC3T3-E1 cells on SA-ZrO2/Sr possessed an optimal osteogenic property to promote the osteogenic differentiation. Moreover, the RT-PCR results revealed that SA-ZrO2/Sr significantly up-regulated the gene expression of Runx2, COL-1, ALP, OPG, OPN and OCN. Further, the in vivo evaluation confirmed that the SA-ZrO2/Sr implants promoted the bone-implant osseointegration to the greatest extent as compared to SA-ZrO2 and ZrO2 implant. Overall, the SA-ZrO2/Sr system was confirmed to be a promising implant, thus, providing new pathways for an effective implant design.
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Affiliation(s)
- Li Li
- Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, Zhejiang, China; Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, the Netherlands
| | - Litao Yao
- Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, Zhejiang, China; Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, the Netherlands.
| | - Haiyan Wang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Xufei Shen
- Deqing campus, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Weiwei Lou
- Department of stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chengyi Huang
- Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam (VU), Amsterdam Movement Science (AMS), Amsterdam, the Netherlands; Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
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29
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Jayasree A, Ivanovski S, Gulati K. ON or OFF: Triggered therapies from anodized nano-engineered titanium implants. J Control Release 2021; 333:521-535. [DOI: 10.1016/j.jconrel.2021.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
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30
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Zhu WQ, Ming PP, Zhang SM, Qiu J. Role of MAPK/JNK signaling pathway on the regulation of biological behaviors of MC3T3‑E1 osteoblasts under titanium ion exposure. Mol Med Rep 2020; 22:4792-4800. [PMID: 33173964 PMCID: PMC7646925 DOI: 10.3892/mmr.2020.11575] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 08/18/2020] [Indexed: 12/13/2022] Open
Abstract
The oral cavity is a complex environment that is constantly undergoing remodeling. This provides a favorable electrolytic aqueous condition, which causes the corrosion of titanium implants and the release of titanium (Ti) ions. The accumulation of Ti ions in the peri-implant tissues may affect the osteogenesis process. Therefore, the present study aimed to investigate the possible effects of Ti ions on osteoblast physiology and its underlying mechanism, specifically the MAPK/JNK signaling pathway. In the present study, MC3T3-E1 osteoblasts were cultured the medium containing 10 ppm Ti ions. Confocal laser scanning microscopy was used to analyze cell morphology and adhesion. Alkaline phosphatase (ALP) activity assay and western blotting were performed to evaluate the expression of proteins associated with osteogenesis such as Runx2 and Osterix. Nuclear translocation of JNK, a key factor of the MAPK signaling pathway, was visualized and analyzed using immunofluorescence staining. The results showed that 10 ppm Ti ions exerted negative effects on the biological behaviors of MC3T3-E1 cells, which exhibited reduced adhesion, ALP activity and osteogenic differentiation. It was also found that 10 ppm Ti ions activated the MAPK/JNK signaling pathway by promoting the nuclear translocation of JNK via phosphorylation. In addition, the inhibitory effects of 10 ppm Ti ions on MC3T3-E1 cells was found to be reversed by the JNK inhibitor SP600125. In conclusion, the preset study suggests that the MAPK/JNK signaling pathway serves a key role in the molecular mechanism underlying the changes in osteoblast behavior following Ti ion exposure. These findings may serve as a valuable reference point for the further in-depth exploration of peri-implant bone loss.
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Affiliation(s)
- Wen-Qing Zhu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Pan-Pan Ming
- Department of Stomatology, Sir Run Run Hospital, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
| | - Song-Mei Zhang
- Department of General Dentistry, Eastman Institute for Oral Health, University of Rochester, Rochester, NY 14620, USA
| | - Jing Qiu
- Department of Oral Implantology, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, Jiangsu 210029, P.R. China
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31
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Xue T, Attarilar S, Liu S, Liu J, Song X, Li L, Zhao B, Tang Y. Surface Modification Techniques of Titanium and its Alloys to Functionally Optimize Their Biomedical Properties: Thematic Review. Front Bioeng Biotechnol 2020; 8:603072. [PMID: 33262980 PMCID: PMC7686851 DOI: 10.3389/fbioe.2020.603072] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 10/07/2020] [Indexed: 11/25/2022] Open
Abstract
Depending on the requirements of specific applications, implanted materials including metals, ceramics, and polymers have been used in various disciplines of medicine. Titanium and its alloys as implant materials play a critical role in the orthopedic and dental procedures. However, they still require the utilization of surface modification technologies to not only achieve the robust osteointegration but also to increase the antibacterial properties, which can avoid the implant-related infections. This article aims to provide a summary of the latest advances in surface modification techniques, of titanium and its alloys, specifically in biomedical applications. These surface techniques include plasma spray, physical vapor deposition, sol-gel, micro-arc oxidation, etc. Moreover, the microstructure evolution is comprehensively discussed, which is followed by enhanced mechanical properties, osseointegration, antibacterial properties, and clinical outcomes. Future researches should focus on the combination of multiple methods or improving the structure and composition of the composite coating to further enhance the coating performance.
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Affiliation(s)
- Tong Xue
- School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, China
| | - Shokouh Attarilar
- Department of Pediatric Orthopaedics, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shifeng Liu
- School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, China
| | - Jia Liu
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Xi Song
- School of Metallurgical Engineering, Xi'an University of Architecture and Technology, Xi'an, China
| | - Lanjie Li
- Chengsteel Group Co., Ltd., HBIS Group Co., Ltd., Chengde, China
| | - Beibei Zhao
- Chengsteel Group Co., Ltd., HBIS Group Co., Ltd., Chengde, China
| | - Yujin Tang
- Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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32
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Wang C, Xu D, Li S, Yi C, Zhang X, He Y, Yu D. Effect of Pore Size on the Physicochemical Properties and Osteogenesis of Ti6Al4V Porous Scaffolds with Bionic Structure. ACS OMEGA 2020; 5:28684-28692. [PMID: 33195921 PMCID: PMC7658928 DOI: 10.1021/acsomega.0c03824] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/13/2020] [Indexed: 05/08/2023]
Abstract
Ti6Al4V is widely used in implants in the fields of orthopedics and dentistry due to its high compressive strength and good biocompatibility. Nevertheless, Ti6Al4V has a certain degree of biological inertness and the elastic modulus of Ti6Al4V is much higher than the cortex and trabecular bone. In this study, we designed and printed a new type of pore size Ti6Al4V with like-trabecular structure scaffold (the pore size is 800/900/1000 μm, named P8/P9/P10, respectively) with electron beam melting (EBM). Its elastic modulus, compressive strength, and other physical and chemical properties, as well as cell adhesion, proliferation, and differentiation ability and in vitro biological properties were studied. The physical and chemical performance test results showed that as the pore size increased, the surface wettability increased and the elastic modulus decreased. As the pore size increased, F-actin and alkaline phosphatase (ALP) increased significantly, and osteogenesis-related genes including BMP2, OCN, RUNX2, and ALP were upregulated significantly. The reason may be that the components on the Ti6Al4V pore size may have an influence on intracellular signal conversion and then change the mode of cell proliferation and diffusion. In summary, the like-trabecular porous structure can effectively reduce the elastic modulus of metal materials, thereby avoiding stress concentration and promoting the adhesion and proliferation of osteoblasts. Porous materials with larger pores are more conducive to the proliferation and differentiation of osteoblasts. The irregular porous Ti6Al4V scaffold prepared by the EBM technology has good mechanical properties and the potential to promote adhesion, proliferation, and differentiation of osteoblasts, and has the possibility of application in the field of implantation.
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Affiliation(s)
- Chao Wang
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Duoling Xu
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Shujun Li
- Institute
of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Chen Yi
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Xiliu Zhang
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Yi He
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
| | - Dongsheng Yu
- Guanghua
School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510055, China
- Guangdong
Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong 510050, China
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33
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Mohammadi N, Benabid C, Wang H, Abrego‐Martinez JC, Wang Y, Mohamedi M. Three‐dimensional Pt catalyst on TiO
2
structures: Synthesis, characterization, and optimal morphology for efficient ethanol electro‐oxidation in acidic medium. ELECTROCHEMICAL SCIENCE ADVANCES 2020. [DOI: 10.1002/elsa.202000020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Naser Mohammadi
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
| | - Chahrazed Benabid
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
| | - Haixia Wang
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
| | - Juan Carlos Abrego‐Martinez
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
| | - Youling Wang
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
| | - Mohamed Mohamedi
- Énergie, Matériaux et Télécommunications Institut National de la Recherche Scientifique (INRS) Varennes Québec Canada
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34
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Bédard P, Gauvin S, Ferland K, Caneparo C, Pellerin È, Chabaud S, Bolduc S. Innovative Human Three-Dimensional Tissue-Engineered Models as an Alternative to Animal Testing. Bioengineering (Basel) 2020; 7:E115. [PMID: 32957528 PMCID: PMC7552665 DOI: 10.3390/bioengineering7030115] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 12/12/2022] Open
Abstract
Animal testing has long been used in science to study complex biological phenomena that cannot be investigated using two-dimensional cell cultures in plastic dishes. With time, it appeared that more differences could exist between animal models and even more when translated to human patients. Innovative models became essential to develop more accurate knowledge. Tissue engineering provides some of those models, but it mostly relies on the use of prefabricated scaffolds on which cells are seeded. The self-assembly protocol has recently produced organ-specific human-derived three-dimensional models without the need for exogenous material. This strategy will help to achieve the 3R principles.
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Affiliation(s)
- Patrick Bédard
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Sara Gauvin
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Karel Ferland
- Faculté de Médecine, Sciences Biomédicales, Université Laval, Québec, QC G1V 0A6, Canada; (P.B.); (S.G.); (K.F.)
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Christophe Caneparo
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Ève Pellerin
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Stéphane Chabaud
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
| | - Stéphane Bolduc
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Québec, QC G1J 1Z4, Canada; (C.C.); (È.P.); (S.C.)
- Département de Chirurgie, Faculté de Médecine, Université Laval, Québec, QC G1V 0A6, Canada
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Ye G, Bao F, Zhang X, Song Z, Liao Y, Fei Y, Bunpetch V, Heng BC, Shen W, Liu H, Zhou J, Ouyang H. Nanomaterial-based scaffolds for bone tissue engineering and regeneration. Nanomedicine (Lond) 2020; 15:1995-2017. [PMID: 32812486 DOI: 10.2217/nnm-2020-0112] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The global incidence of bone tissue injuries has been increasing rapidly in recent years, making it imperative to develop suitable bone grafts for facilitating bone tissue regeneration. It has been demonstrated that nanomaterials/nanocomposites scaffolds can more effectively promote new bone tissue formation compared with micromaterials. This may be attributed to their nanoscaled structural and topological features that better mimic the physiological characteristics of natural bone tissue. In this review, we examined the current applications of various nanomaterial/nanocomposite scaffolds and different topological structures for bone tissue engineering, as well as the underlying mechanisms of regeneration. The potential risks and toxicity of nanomaterials will also be critically discussed. Finally, some considerations for the clinical applications of nanomaterials/nanocomposites scaffolds for bone tissue engineering are mentioned.
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Affiliation(s)
- Guo Ye
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Fangyuan Bao
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Xianzhu Zhang
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Zhe Song
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Youguo Liao
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Yang Fei
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Varitsara Bunpetch
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China
| | - Boon Chin Heng
- School of Stomatology, Peking University, Beijing, PR China
| | - Weiliang Shen
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, PR China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, PR China
| | - Hua Liu
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, PR China
| | - Jing Zhou
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, PR China
| | - Hongwei Ouyang
- Dr Li Dak Sum & Yip Yio Chin Center for Stem Cells & Regenerative Medicine & Department of Orthopedic Surgery of The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, PR China.,Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine & Key Laboratory of Tissue Engineering & Regenerative Medicine of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, PR China.,Department of Sports Medicine, Zhejiang University School of Medicine, Hangzhou, PR China.,China Orthopedic Regenerative Medicine Group (CORMed), Hangzhou, PR China
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Voltrova B, Jarolimova P, Hybasek V, Blahnova VH, Sepitka J, Sovkova V, Matějka R, Daniel M, Fojt J, Filova E. In vitro evaluation of a novel nanostructured Ti-36Nb-6Ta alloy for orthopedic applications. Nanomedicine (Lond) 2020; 15:1843-1859. [PMID: 32752935 DOI: 10.2217/nnm-2020-0123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To evaluate the impact of a nanostructured surface created on β-titanium alloy, Ti-36Nb-6Ta, on the growth and differentiation of human mesenchymal stem cells. Materials & methods: The nanotubes, with average diameters 18, 36 and 46 nm, were prepared by anodic oxidation. Morphology, hydrophilicity and mechanical properties of the nanotube layers were characterized. The biocompatibility and osteogenic potential of the nanostructured surfaces were established using various in vitro assays, scanning electron microscopy and confocal microscopy. Results: The nanotubes lowered elastic modulus close to that of bone, positively influenced cell adhesion, improved ALP activity, synthesis of type I collagen and osteocalcin expression, but diminished early cell proliferation. Conclusion: Nanostructured Ti-36Nb-6Ta with nanotube diameters 36 nm was the most promising material for bone implantation.
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Affiliation(s)
- Barbora Voltrova
- Department of Tissue Engineering, Institute of Experimental Medicine of The Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czech Republic.,Department of Physiology, Faculty of Science, Charles University in Prague, Albertov 2038/6, 128 00, Prague, Czech Republic
| | - Petra Jarolimova
- Department of Metals & Corrosion Engineering, University of Chemistry & Technology, Technická 5, 166 29, Prague, Czech Republic
| | - Vojtech Hybasek
- Department of Metals & Corrosion Engineering, University of Chemistry & Technology, Technická 5, 166 29, Prague, Czech Republic
| | - Veronika Hefka Blahnova
- Department of Tissue Engineering, Institute of Experimental Medicine of The Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czech Republic.,Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06, Prague, Czech Republic
| | - Josef Sepitka
- Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 160 00, Prague, Czech Republic
| | - Vera Sovkova
- Department of Tissue Engineering, Institute of Experimental Medicine of The Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czech Republic
| | - Roman Matějka
- Faculty of Biomedical Engineering, Czech Technical University in Prague, Náměstí Sítná 3105, 272 01, Kladno, Czech Republic
| | - Matej Daniel
- Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 160 00, Prague, Czech Republic
| | - Jaroslav Fojt
- Department of Metals & Corrosion Engineering, University of Chemistry & Technology, Technická 5, 166 29, Prague, Czech Republic
| | - Eva Filova
- Department of Tissue Engineering, Institute of Experimental Medicine of The Czech Academy of Sciences, Vídeňská 1083, 142 20, Prague, Czech Republic.,Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06, Prague, Czech Republic
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37
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Fathi-Hafshejani P, Johnson H, Ahmadi Z, Roach M, Shamsaei N, Mahjouri-Samani M. Phase-Selective and Localized TiO 2 Coating on Additive and Wrought Titanium by a Direct Laser Surface Modification Approach. ACS OMEGA 2020; 5:16744-16751. [PMID: 32685842 PMCID: PMC7364727 DOI: 10.1021/acsomega.0c01671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/18/2020] [Indexed: 05/10/2023]
Abstract
Titanium has been the material of interest in biological implant applications due to its unique mechanical properties and biocompatibility. Their design is now growing rapidly due to the advent of additive manufacturing technology that enables the fabrication of complex and patient-customized parts. Titanium dioxides (TiO2) coatings with different phases (e.g., anatase, rutile) and morphologies have shown to be effective in enhancing osteointegration and antibacterial behavior. This enhanced antibacterial behavior stems from the photocatalytic activity generated from crystalline TiO2 coatings. Anatase has commonly been shown to be a more photocatalytic oxide phase compared to rutile despite its larger band gap. However, more recent studies have suggested that a synergistic effect leading to increased photocatalytic activity may be produced with a combination of oxides containing both anatase and rutile phases. Here, we demonstrate the selective and localized formation of TiO2 nanostructures on additive and wrought titanium parts with anatase, rutile, and mixed phases by a laser-induced transformation approach. Compared to conventional coating processes, this technique produces desired TiO2 phases simply by controlled laser irradiation of titanium parts in an oxygen environment, where needed. The effects of processing conditions such as laser power, scanning speed, laser pulse duration, frequency, and gas flow on the selective transformation were studied. The morphological and structural evolutions were investigated using various characterization techniques. This method is specifically of significant interest in creating phase-selective TiO2 surfaces on titanium-based bioimplants, including those fabricated by additive manufacturing technologies.
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Affiliation(s)
- Parvin Fathi-Hafshejani
- Department
of Electrical and Computer Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Haden Johnson
- The
Department of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, Mississippi 39216, United States
| | - Zabihollah Ahmadi
- Department
of Electrical and Computer Engineering, Auburn University, Auburn, Alabama 36849, United States
| | - Michael Roach
- The
Department of Biomedical Materials Science, University of Mississippi Medical Center, Jackson, Mississippi 39216, United States
| | - Nima Shamsaei
- Department
of Mechanical Engineering, Auburn University, Auburn, Alabama 36849, United States
- National
Center for Additive Manufacturing Excellence (NCAME), Auburn University, Auburn, Alabama 36849, United States
| | - Masoud Mahjouri-Samani
- Department
of Electrical and Computer Engineering, Auburn University, Auburn, Alabama 36849, United States
- National
Center for Additive Manufacturing Excellence (NCAME), Auburn University, Auburn, Alabama 36849, United States
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Leroux MM, Doumandji Z, Chézeau L, Gaté L, Nahle S, Hocquel R, Zhernovkov V, Migot S, Ghanbaja J, Bonnet C, Schneider R, Rihn BH, Ferrari L, Joubert O. Toxicity of TiO 2 Nanoparticles: Validation of Alternative Models. Int J Mol Sci 2020; 21:E4855. [PMID: 32659965 PMCID: PMC7402355 DOI: 10.3390/ijms21144855] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 06/27/2020] [Accepted: 06/28/2020] [Indexed: 12/13/2022] Open
Abstract
There are many studies concerning titanium dioxide (TiO2) nanoparticles (NP) toxicity. Nevertheless, there are few publications comparing in vitro and in vivo exposure, and even less comparing air-liquid interface exposure (ALI) with other in vitro and in vivo exposures. The identification and validation of common markers under different exposure conditions are relevant for the development of smart and quick nanotoxicity tests. In this work, cell viability was assessed in vitro by WST-1 and LDH assays after the exposure of NR8383 cells to TiO2 NP sample. To evaluate in vitro gene expression profile, NR8383 cells were exposed to TiO2 NP during 4 h at 3 cm2 of TiO2 NP/cm2 of cells or 19 μg/mL, in two settings-submerged cultures and ALI. For the in vivo study, Fischer 344 rats were exposed by inhalation to a nanostructured aerosol at a concentration of 10 mg/m3, 6 h/day, 5 days/week for 4 weeks. This was followed immediately by gene expression analysis. The results showed a low cytotoxic potential of TiO2 NP on NR8383 cells. Despite the absence of toxicity at the doses studied, the different exposures to TiO2 NP induce 18 common differentially expressed genes (DEG) which are involved in mitosis regulation, cell proliferation and apoptosis and inflammation transport of membrane proteins. Among these genes, we noticed the upregulation of Ccl4, Osm, Ccl7 and Bcl3 genes which could be suggested as early response biomarkers after exposure to TiO2 NP. On the other hand, the comparison of the three models helped us to validate the alternative ones, namely submerged and ALI approaches.
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Affiliation(s)
- Mélanie M. Leroux
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Zahra Doumandji
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Laetitia Chézeau
- Institut National de Recherche et de Sécurité, rue du Morvan, 54519 Vandœuvre-les-Nancy, France; (L.C.); (L.G.)
| | - Laurent Gaté
- Institut National de Recherche et de Sécurité, rue du Morvan, 54519 Vandœuvre-les-Nancy, France; (L.C.); (L.G.)
| | - Sara Nahle
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Romain Hocquel
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Vadim Zhernovkov
- Systems Biology Ireland, University College Dublin, Dublin 4, Ireland;
| | - Sylvie Migot
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Jafar Ghanbaja
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Céline Bonnet
- Université de Lorraine, CHRU-Nancy, Genetic Department, F-54000 Nancy, France;
| | - Raphaël Schneider
- Laboratoire Réactions et Génie des Procédés, Université de Lorraine, CNRS, LRGP, F-54000 Nancy, France;
| | - Bertrand H. Rihn
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Luc Ferrari
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
| | - Olivier Joubert
- Institut Jean Lamour, UMR CNRS 7198, Université de Lorraine, CNRS, IJL, F-54000 Nancy, France; (M.M.L.); (Z.D.); (S.N.); (R.H.); (S.M.); (J.G.); (B.H.R.); (L.F.)
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Wang W, Wang Z, Fu Y, Dunne N, Liang C, Luo X, Liu K, Li X, Pang X, Lu K. Improved osteogenic differentiation of human amniotic mesenchymal stem cells on gradient nanostructured Ti surface. J Biomed Mater Res A 2020; 108:1824-1833. [PMID: 32388898 DOI: 10.1002/jbm.a.36948] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 03/15/2020] [Accepted: 03/28/2020] [Indexed: 01/07/2023]
Abstract
Titanium (Ti) and Ti-based alloys are widely used in the manufacture of dental and orthopedic implants. However, how to improve their osteogenic differentiation ability is still a key issue to be resolved. In this study, gradient nanostructured surface (GNS) samples were prepared by surface mechanical grinding treatment, and coarse-grained (CG) samples were obtained by recrystallization annealing, making sure that the two kinds of specimens had similar roughness. Then, human amniotic mesenchymal stem cells (hAMSCs) were cocultured with the two kinds of Ti to investigate the material effects on the cellular functions. The results demonstrated that the grains with size ~56 nm were formed on the surface of the GNS Ti, and the grain size gradually increases from the sample surface to interior. Compared to the CG samples, the GNS ones could make the adhesion effect of the hAMSCs better, and promote the cell proliferation and osteogenic differentiation more significantly, the preliminary mechanism of which might be due to their specific nanostructure, the thicker oxide layer formed on their surface and the enhanced hardness. Our results indicated that the gradient nanostructured Ti materials could enhance both osteogenic differentiation and mechanical properties, which may possess broader applications in bone tissue engineering and clinical implanting.
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Affiliation(s)
- Wei Wang
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Zhenbo Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Yating Fu
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, Ireland
| | - Chen Liang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
| | - Xue Luo
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Keda Liu
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, China
| | - Xining Pang
- School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, China.,Key Laboratory of Cell Biology, China Medical University, Shenyang, China
| | - Ke Lu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, China
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40
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Icariin/Aspirin Composite Coating on TiO2 Nanotubes Surface Induce Immunomodulatory Effect of Macrophage and Improve Osteoblast Activity. COATINGS 2020. [DOI: 10.3390/coatings10040427] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Surface coating modification of titanium-based alloys is an efficient way to accelerate early osseointegration in dental implant fields. Icariin (ICA) is a traditional Chinese medicine that has bone activating functions, while aspirin (ASP) is a classical non-steroidal anti-inflammatory drug with good antipyretic and analgesic capabilities. Moreover, poly(lactic–co–glycolic acid) (PLGA) has attracted great attention due to its excellent biocompatibility and biodegradability. We superimposed an ASP/PLGA coating onto ICA loaded TiO2 nanotubes structure so as to establish an icariin/aspirin composite coating on TiO2 nanotubes surface. Scanning electron microscopy, X-ray photoelectron spectroscopy, a contact angle test and a drug release test confirmed the successful preparation of the NT–ICA–ASP/PLGA substrate, with a sustained release pattern of both ICA and ASP. Compared to those cultured on the Ti surface, macrophage cells on the NT-ICA-ASP/PLGA substrate displayed decreased M1 proinflammatory and enhanced M2 proregenerative genes and proteins expression, which implied activated immunomodulatory effect. Moreover, when cultured with conditioned medium from macrophages, osteoblast cells on the NT-ICA-ASP/PLGA substrate revealed improved cell proliferation, adhesion and osteogenic genes and proteins expression, compared with those on the Ti surface. The abovementioned results suggest that the established NT-ICA-ASP/PLGA substrate is a promising candidate for functionalized coating material in Ti implant surface modification.
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Ren Y, Geng R, Lu Q, Tan X, Rao R, Zhou H, Yang X, Liu W. Involvement of TGF-β and ROS in G1 Cell Cycle Arrest Induced by Titanium Dioxide Nanoparticles Under UVA Irradiation in a 3D Spheroid Model. Int J Nanomedicine 2020; 15:1997-2010. [PMID: 32273698 PMCID: PMC7102912 DOI: 10.2147/ijn.s238145] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/21/2020] [Indexed: 01/07/2023] Open
Abstract
Background As one of the most widely produced engineered nanomaterials, titanium dioxide nanoparticles (nano-TiO2) are used in biomedicine and healthcare products, and as implant scaffolds; therefore, the toxic mechanism of nano-TiO2 has been extensively investigated with a view to guiding application. Three-dimensional (3D) spheroid models can simplify the complex physiological environment and mimic the in vivo architecture of tissues, which is optimal for the assessment of nano-TiO2 toxicity under ultraviolet A (UVA) irradiation. Methods and Results In the present study, the toxicity of nano-TiO2 under UVA irradiation was investigated in 3D H22 spheroids cultured in fibrin gels. A significant reduction of approximately 25% in spheroid diameter was observed following treatment with 100 μg/mL nano-TiO2 under UVA irradiation after seven days of culture. Nano-TiO2 under UVA irradiation triggered the initiation of the TGF-β/Smad signaling pathway, increasing the expression levels of TGF-β1, Smad3, Cdkn1a, and Cdkn2b at both the mRNA and protein level, which resulted in cell cycle arrest in the G1 phase. In addition, nano-TiO2 under UVA irradiation also triggered the production of reactive oxygen species (ROS), which were shown to be involved in cell cycle regulation and the induction of TGF-β1 expression. Conclusion Nano-TiO2 under UVA irradiation induced cell cycle arrest in the G1 phase and the formation of smaller spheroids, which were associated with TGF-β/Smad signaling pathway activation and ROS generation. These results reveal the toxic mechanism of nano-TiO2 under UVA irradiation, providing the possibility for 3D spheroid models to be used in nanotoxicology studies.
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Affiliation(s)
- Yuanyuan Ren
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Runqing Geng
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Qunwei Lu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.,Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Center for Human Genome Research, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xi Tan
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Rong Rao
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Hong Zhou
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Xiangliang Yang
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.,National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
| | - Wei Liu
- College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China.,National Engineering Research Center for Nanomedicine, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
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42
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Modifications of Dental Implant Surfaces at the Micro- and Nano-Level for Enhanced Osseointegration. MATERIALS 2019; 13:ma13010089. [PMID: 31878016 PMCID: PMC6982017 DOI: 10.3390/ma13010089] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/13/2019] [Accepted: 12/20/2019] [Indexed: 02/07/2023]
Abstract
This review paper describes several recent modification methods for biocompatible titanium dental implant surfaces. The micro-roughened surfaces reviewed in the literature are sandblasted, large-grit, acid-etched, and anodically oxidized. These globally-used surfaces have been clinically investigated, showing survival rates higher than 95%. In the past, dental clinicians believed that eukaryotic cells for osteogenesis did not recognize the changes of the nanostructures of dental implant surfaces. However, research findings have recently shown that osteogenic cells respond to chemical and morphological changes at a nanoscale on the surfaces, including titanium dioxide nanotube arrangements, functional peptide coatings, fluoride treatments, calcium–phosphorus applications, and ultraviolet photofunctionalization. Some of the nano-level modifications have not yet been clinically evaluated. However, these modified dental implant surfaces at the nanoscale have shown excellent in vitro and in vivo results, and thus promising potential future clinical use.
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Zhao QM, Sun YY, Wu CS, Yang J, Bao GF, Cui ZM. Enhanced osteogenic activity and antibacterial ability of manganese–titanium dioxide microporous coating on titanium surfaces. Nanotoxicology 2019; 14:289-309. [PMID: 32193966 DOI: 10.1080/17435390.2019.1690065] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Quan-Ming Zhao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
| | - Yu-Yu Sun
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
| | - Chun-Shuai Wu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
| | - Jian Yang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
| | - Guo-Feng Bao
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
| | - Zhi-Ming Cui
- Department of Orthopaedic Surgery, The Second Affiliated Hospital of Nantong University, Nantong, PR China
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Abstract
Scientific articles have been traditionally written from single points of view. In contrast, new knowledge is derived strictly from a dialectical process, through interbreeding of partially disparate perspectives. Dialogues, therefore, present a more veritable form for representing the process behind knowledge creation. They are also less prone to dogmatically disseminate ideas than monologues, alongside raising awareness of the necessity for discussion and challenging of differing points of view, through which knowledge evolves. Here we celebrate 250 years since the discovery of the chemical identity of the inorganic component of bone in 1769 by Johan Gottlieb Gahn through one such imaginary dialogue between two seasoned researchers and aficionados of this material. We provide the statistics on ups and downs in the popularity of this material throughout the history and also discuss important achievements and challenges associated with it. The shadow of Samuel Beckett's Waiting for Godot is cast over the dialogue, acting as its frequent reference point and the guide. With this dialogue presented in the format of a play, we provide hope that conversational or dramaturgical compositions of scientific articles - albeit virtually prohibited from the scientific literature of the day - may become more pervasive in the future.
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Affiliation(s)
| | - Vuk Uskoković
- 7 Park Vista, Irvine, CA 92604, USA
- Department of Bioengineering, University of Illinois, Chicago, IL 60607, USA
- Corresponding author: ;
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