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Canullo L, Genova T, Chinigò G, Iacono R, Pesce P, Menini M, Mussano F. Vacuum Plasma Treatment Device for Enhancing Fibroblast Activity on Machined and Rough Titanium Surfaces. Dent J (Basel) 2024; 12:71. [PMID: 38534295 DOI: 10.3390/dj12030071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 03/28/2024] Open
Abstract
This study was conducted to compare the effects of an innovative plasma surface treatment device that does not need a gas supply for titanium disks with two different surface topographies: the prototypical machined surface (MAC) and one of the most diffused roughened ones (SL) obtained through grit blasting and acid etching. A total of 200-MAC and 200-SL titanium disks were used. Each group of disks was divided into four sub-groups of 40 samples each that were subjected to five different tests. Among these, 150-MAC and 150-SL were considered the test group, and they were treated with plasma for 15, 30, and 60 s after being removed from the sterile packaging. On the other hand, 50-MAC and 50-SL were considered the control group, and they were only removed from sterile plastic vials. The samples were analyzed to evaluate the capability of the plasma treatment in influencing protein adsorption, cell adhesion, proliferation, and microbial growth on the test group disks when compared to the untreated disks. Protein adsorption was significantly enhanced after 20 min of plasma treatment for 15 and 30 s on the MAC and SL disks. Plasma treatment for 15 and 30 s significantly increased the level of adhesion in both treated samples after 30 min. Furthermore, the MAC samples showed a significant increase in cell adhesion 4 h after plasma treatment for 15 s. The SEM analysis highlighted that, on the treated samples (especially on the MAC disks), the cells with a polygonal and flat shape prevailed, while the fusiform- and globular-shaped cells were rare. The encouraging results obtained further confirm the effectiveness of plasma treatments on cell adhesion and fibroblast activity.
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Affiliation(s)
- Luigi Canullo
- Department of Surgical Sciences (DISC), University of Genoa, Largo R. Benzi 10, 16132 Genoa, Italy
| | - Tullio Genova
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Turin, Italy
| | - Giorgia Chinigò
- Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Turin, Italy
| | - Roberta Iacono
- Department of Oral and Maxillo-facial Sciences, "Sapienza" University of Rome, Via Caserta 6, 00161 Rome, Italy
| | - Paolo Pesce
- Department of Surgical Sciences (DISC), University of Genoa, Largo R. Benzi 10, 16132 Genoa, Italy
| | - Maria Menini
- Department of Surgical Sciences (DISC), University of Genoa, Largo R. Benzi 10, 16132 Genoa, Italy
| | - Federico Mussano
- CIR Dental School, Department of Surgical Sciences, University of Torino, Via Nizza 230, 10126 Torino, Italy
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Plasma of Argon Treatment of the Implant Surface, Systematic Review of In Vitro Studies. Biomolecules 2022; 12:biom12091219. [PMID: 36139059 PMCID: PMC9496338 DOI: 10.3390/biom12091219] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/27/2022] [Accepted: 08/30/2022] [Indexed: 11/18/2022] Open
Abstract
This paper aims to review the evidence of the cellular activity on titanium samples exposed to Plasma of Argon (PoA) treatment. A systematic review was carried out based on the PRISMA statement by searching the Cochrane Library, PubMed, Web of Science, EMBASE and Scopus, up to October 2020. Papers were selected according to PICOS format that is: Population (P): osteoblasts, fibroblasts, gingival cells; Intervention (I): PoA disinfection treatment; Comparison (C): untreated controls; Outcome (O): cell culture; Setting (S): in vitro assays. The quality assessment was performed according to the CRIS Guidelines (Checklist for Reporting In vitro Studies). A total of 661 articles were found, of which 16 were included. The quality assessment revealed an overall poor quality of the studies analyzed. In vitro studies on the potential of PoA showed a potential effect in promoting higher cell adhesion and protein adsorption in the earliest times (hours). This outcome was not so evident when later stages of cell growth on the surfaces were tested and compared to the control groups. Only one study was conducted in vivo on a human sample regarding abutment cleaning. No meta-analysis was conducted because of the variety of experimental settings, mixed methods and different cell lines studied. PoA seems to be effective in promoting cell adhesion and protein adsorption. The duration of this effect remains unclear. Further evidence is required to demonstrate the long-term efficacy of the treatment and to support the use of PoA treatment in clinical practice.
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Steinerova M, Matejka R, Stepanovska J, Filova E, Stankova L, Rysova M, Martinova L, Dragounova H, Domonkos M, Artemenko A, Babchenko O, Otahal M, Bacakova L, Kromka A. Human osteoblast-like SAOS-2 cells on submicron-scale fibers coated with nanocrystalline diamond films. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111792. [PMID: 33579442 DOI: 10.1016/j.msec.2020.111792] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 11/06/2020] [Accepted: 12/02/2020] [Indexed: 02/07/2023]
Abstract
A unique composite nanodiamond-based porous material with a hierarchically-organized submicron-nano-structure was constructed for potential bone tissue engineering. This material consisted of submicron fibers prepared by electrospinning of silicon oxide (SiOx), which were oxygen-terminated (O-SiOx) and were hermetically coated with nanocrystalline diamond (NCD) films. The NCD films were then terminated with hydrogen (H-NCD) or oxygen (O-NCD). The materials were tested as substrates for the adhesion, growth and osteogenic differentiation of human osteoblast-like Saos-2 cells. The number and the spreading area of the initially adhered cells, their growth rate during 7 days after seeding and the activity of alkaline phosphatase (ALP) were significantly higher on the NCD-coated samples than on the uncoated O-SiOx samples. In addition, the concentration of type I collagen was significantly higher in the cells on the O-NCD-coated samples than on the bare O-SiOx samples. The observed differences could be attributed to the tunable wettability of NCD and to the more appropriate surface morphology of the NCD-coated samples in contrast to the less stable, rapidly eroding bare SiOx surface. The H-NCD coatings and the O-NCD coatings both promoted similar initial adhesion of Saos-2 cells, but the subsequent cell proliferation activity was higher on the O-NCD-coated samples. The concentration of beta-actin, vinculin, type I collagen and alkaline phosphatase (ALP), the ALP activity, and also the calcium deposition tended to be higher in the cells on the O-NCD-coated samples than on the H-NCD-coated samples, although these differences did not reach statistical significance. The improved cell performance on the O-NCD-coated samples could be attributed to higher wettability of these samples (water drop contact angle less than 10°), while the H-NCD-coated samples were hydrophobic (contact angle >70°). NCD-coated porous SiOx meshes can therefore be considered as appropriate scaffolds for bone tissue engineering, particularly those with an O-terminated NCD coating.
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Affiliation(s)
- Marie Steinerova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic.
| | - Roman Matejka
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic; Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Nam. Sitna 3105, 272 01 Kladno, Czech Republic.
| | - Jana Stepanovska
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic; Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Nam. Sitna 3105, 272 01 Kladno, Czech Republic.
| | - Elena Filova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic.
| | - Lubica Stankova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic.
| | - Miroslava Rysova
- Institute for Nanomaterials, Advanced Technology and Innovation, Technical University of Liberec, Studentska 1402/2, 461 17 Liberec, 1, Czech Republic.
| | - Lenka Martinova
- Department of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentská 2, 461 17 Liberec, Czech Republic.
| | - Helena Dragounova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic.
| | - Maria Domonkos
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic; Department of Physics, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Praha 6, Czech Republic.
| | - Anna Artemenko
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic.
| | - Oleg Babchenko
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic.
| | - Martin Otahal
- Department of Biomedical Technology, Faculty of Biomedical Engineering, Czech Technical University in Prague, Nam. Sitna 3105, 272 01 Kladno, Czech Republic.
| | - Lucie Bacakova
- Institute of Physiology of the Czech Academy of Sciences, Videnska 1083, 142 20, Prague 6, Czech Republic.
| | - Alexander Kromka
- Institute of Physics of the Czech Academy of Sciences, Cukrovarnicka 10, 162 00 Prague 6, Czech Republic; Department of Physics, Faculty of Civil Engineering, Czech Technical University in Prague, Thakurova 7, 166 29 Praha 6, Czech Republic.
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Rumian Ł, Wolf-Brandstetter C, Rößler S, Reczyńska K, Tiainen H, Haugen HJ, Scharnweber D, Pamuła E. Sodium alendronate loaded poly(l-lactide- co-glycolide) microparticles immobilized on ceramic scaffolds for local treatment of bone defects. Regen Biomater 2020; 7:293-302. [PMID: 32523731 PMCID: PMC7266661 DOI: 10.1093/rb/rbaa012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/21/2020] [Accepted: 03/02/2020] [Indexed: 12/15/2022] Open
Abstract
Bone tissue regeneration in critical-size defects is possible after implantation of a 3D scaffold and can be additionally enhanced once the scaffold is enriched with drugs or other factors supporting bone remodelling and healing. Sodium alendronate (Aln), a widely used anti-osteoporosis drug, exhibits strong inhibitory effect on bone resorption performed by osteoclasts. Thus, we propose a new approach for the treatment of bone defects in craniofacial region combining biocompatible titanium dioxide scaffolds and poly(l-lactide-co-glycolide) microparticles (MPs) loaded with Aln. The MPs were effectively attached to the surface of the scaffolds’ pore walls by human recombinant collagen. Drug release from the scaffolds was characterized by initial burst (24 ± 6% of the drug released within first 24 h) followed by a sustained release phase (on average 5 µg of Aln released per day from Day 3 to Day 18). In vitro tests evidenced that Aln at concentrations of 5 and 2.5 µg/ml was not cytotoxic for MG-63 osteoblast-like cells (viability between 81 ± 6% and 98 ± 3% of control), but it prevented RANKL-induced formation of osteoclast-like cells from macrophages derived from peripheral blood mononuclear cells, as shown by reduced fusion capability and decreased tartrate-resistant acid phosphatase 5b activity (56 ± 5% reduction in comparison to control after 8 days of culture). Results show that it is feasible to design the scaffolds providing required doses of Aln inhibiting osteoclastogenesis, reducing osteoclast activity, but not affecting osteoblast functions, which may be beneficial in the treatment of critical-size bone tissue defects.
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Affiliation(s)
- Łucja Rumian
- Faculty of Materials Science and Ceramics, Department of Biomaterials and Composites, AGH University of Science and Technology, Al. A. Mickiewicza 30, Krakow 30-059, Poland
| | - Cornelia Wolf-Brandstetter
- Technische Universität Dresden, Institute of Materials Science, Max Bergmann Center of Biomaterials, Budapester Str. 27, Dresden 01-069, Germany
| | - Sina Rößler
- Technische Universität Dresden, Institute of Materials Science, Max Bergmann Center of Biomaterials, Budapester Str. 27, Dresden 01-069, Germany
| | - Katarzyna Reczyńska
- Faculty of Materials Science and Ceramics, Department of Biomaterials and Composites, AGH University of Science and Technology, Al. A. Mickiewicza 30, Krakow 30-059, Poland
| | - Hanna Tiainen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Geitmyrsveien 71, Blindern, P.O. Box 1109, Oslo NO-0317, Norway
| | - Håvard J Haugen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, Geitmyrsveien 71, Blindern, P.O. Box 1109, Oslo NO-0317, Norway
| | - Dieter Scharnweber
- Technische Universität Dresden, Institute of Materials Science, Max Bergmann Center of Biomaterials, Budapester Str. 27, Dresden 01-069, Germany
| | - Elżbieta Pamuła
- Faculty of Materials Science and Ceramics, Department of Biomaterials and Composites, AGH University of Science and Technology, Al. A. Mickiewicza 30, Krakow 30-059, Poland
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Modification of Titanium Implant and Titanium Dioxide for Bone Tissue Engineering. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1077:355-368. [PMID: 30357698 DOI: 10.1007/978-981-13-0947-2_19] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Bone tissue engineering using titanium (Ti) implant and titanium dioxide (TiO2) with their modification is gaining increasing attention. Ti has been adopted as an implant material in dental and orthopedic fields due to its superior properties. However, it still requires modification in order to achieve robust osteointegration between the Ti implant and surrounding bone. To modify the Ti implant, numerous methods have been introduced to fabricate porous implant surfaces with a variety of coating materials. Among these, plasma spraying of hydroxyapatite (HA) has been the most commonly used with commercial success. Meanwhile, TiO2 nanotubes have been actively studied as the coating material for implants, and promising results have been reported about improving osteogenic activity around implants recently. Also porous three-dimensional constructs based on TiO2 have been proposed as scaffolding material with high biocompatibility and osteoconductivity in large bone defects. However, the use of the TiO2 scaffolds in load-bearing environment is somewhat limited. In order to optimize the TiO2 scaffolds, studies have tried to combine various materials with TiO2 scaffolds including drug, mesenchymal stem cells, Al2O3-SiO2 solid and HA. This article will shortly introduce the properties of Ti and Ti-based implants with their modification, and review the progress of bone tissue engineering using the TiO2 nanotubes and scaffolds.
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Haugen HJ, Lyngstadaas SP, Rossi F, Perale G. Bone grafts: which is the ideal biomaterial? J Clin Periodontol 2019; 46 Suppl 21:92-102. [DOI: 10.1111/jcpe.13058] [Citation(s) in RCA: 171] [Impact Index Per Article: 34.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Håvard Jostein Haugen
- Department of Biomaterials; Institute of Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Ståle Petter Lyngstadaas
- Department of Biomaterials; Institute of Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
- Corticalis AS; Oslo Science Park Oslo Norway
| | - Filippo Rossi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”; Politecnico di Milano; Milano Italy
| | - Giuseppe Perale
- Industrie Biomediche Insubri SA; Mezzovico-Vira Switzerland
- Biomaterials Laboratory; Institute for Mechanical Engineering and Materials Technology; University of Applied Sciences and Arts of Southern Switzerland; Manno Switzerland
- Department of Surgical Sciences; Faculty of Medical Sciences; Orthopaedic Clinic-IRCCS A.O.U. San Martino; Genova Italy
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Naik K, Chandran VG, Rajashekaran R, Waigaonkar S, Kowshik M. Mechanical properties, biological behaviour and drug release capability of nano TiO2-HAp-Alginate composite scaffolds for potential application as bone implant material. J Biomater Appl 2016; 31:387-99. [DOI: 10.1177/0885328216661219] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Nanocomposite scaffolds of TiO2 and hydroxyapatite nanoparticles with alginate as the binding agent were fabricated using the freeze drying technique. TiO2, hydroxyapatite and alginate were used in the ratio of 1:1:4. The scaffolds were characterized using X-ray diffraction, fourier transform infrared spectroscopy, and scanning electron microscopy. The biocompatibility of the scaffolds was evaluated using cell adhesion and MTT assay on osteosarcoma (MG-63) cells. Scanning electron microscopy analysis revealed that cells adhered to the surface of the scaffolds with good spreading. The mechanical properties of the scaffolds were investigated using dynamic mechanical analysis. The swelling ability, porosity, in vitro degradation, and biomineralization of the scaffolds were also evaluated. The results indicated controlled swelling, limited degradation, and enhanced biomineralization. Further, drug delivery studies of the scaffolds using the chemotherapeutic drug methotrexate exhibited an ideal drug release profile. These scaffolds are proposed as potential candidates for bone tissue engineering and drug delivery applications.
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Affiliation(s)
- Kshipra Naik
- Department of Biological Sciences, BITS Pilani K K Birla Goa Campus, Zuarinagar, Goa, India
| | - V Girish Chandran
- Department of Mechanical Engineering, BITS Pilani K K Birla Goa Campus, Zuarinagar, Goa, India
| | - Raghavan Rajashekaran
- Department of Biological Sciences, BITS Pilani K K Birla Goa Campus, Zuarinagar, Goa, India
| | - Sachin Waigaonkar
- Department of Mechanical Engineering, BITS Pilani K K Birla Goa Campus, Zuarinagar, Goa, India
| | - Meenal Kowshik
- Department of Biological Sciences, BITS Pilani K K Birla Goa Campus, Zuarinagar, Goa, India
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Ramakrishnaiah R, Al Kheraif AA, Mohammad A, Divakar DD, Kotha SB, Celur SL, Hashem MI, Vallittu PK, Rehman IU. Preliminary fabrication and characterization of electron beam melted Ti-6Al-4V customized dental implant. Saudi J Biol Sci 2016; 24:787-796. [PMID: 28490947 PMCID: PMC5415127 DOI: 10.1016/j.sjbs.2016.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 04/10/2016] [Accepted: 05/01/2016] [Indexed: 11/21/2022] Open
Abstract
The current study was aimed to fabricate customized root form dental implant using additive manufacturing technique for the replacement of missing teeth. The root form dental implant was designed using Geomagic™ and Magics™, the designed implant was directly manufactured by layering technique using ARCAM A2™ electron beam melting system by employing medical grade Ti–6Al–4V alloy powder. Furthermore, the fabricated implant was characterized in terms of certain clinically important parameters such as surface microstructure, surface topography, chemical purity and internal porosity. Results confirmed that, fabrication of customized dental implants using additive rapid manufacturing technology offers an attractive method to produce extremely pure form of customized titanium dental implants, the rough and porous surface texture obtained is expected to provide better initial implant stabilization and superior osseointegration.
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Affiliation(s)
- Ravikumar Ramakrishnaiah
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Abdulaziz Abdullah Al Kheraif
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Ashfaq Mohammad
- FARCAMT, Advanced Manufacturing Institute, College of Engineering, King Saud University, Riyadh 11421, Saudi Arabia
| | - Darshan Devang Divakar
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Sunil Babu Kotha
- Department of Pediatric Dentistry, Riyadh Colleges of Dentistry and Pharmacy, Riyadh 11681, Saudi Arabia
| | - Sree Lalita Celur
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Princess Noura bint Abdulrahman University, Riyadh 11671, Saudi Arabia
| | - Mohamed I Hashem
- Dental Biomaterials Research Chair, Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
| | - Pekka K Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterials Centre, Professor and Chair of Biomaterials Science, Director of Turku Clinical Biomaterials Centre - TCBC, Institute of Dentistry, University of Turku and City of Turku Welfare Division, Turku, Finland
| | - Ihtesham Ur Rehman
- Department of Material Science and Engineering, The Kroto Research Institute, The University of Sheffield, Sheffield S3 7HQ, United Kingdom
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Cai Y, Ye Y, Wu S, Liu J, Liang C. Simultaneous Cu doping and growth of TiO2 nanocrystalline array film as a glucose biosensor. RSC Adv 2016. [DOI: 10.1039/c6ra15014d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Copper ion doping and growth of a TiO2 nanocrystalline material can be realized by using colloidal nanoparticles as a reactive precursor. Such an efficient doping design facilitates the use of TiO2 as a potential biosensor for glucose molecules.
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Affiliation(s)
- Yunyu Cai
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Yixing Ye
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Shouliang Wu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Jun Liu
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031
- China
| | - Changhao Liang
- Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031
- China
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Pullisaar H, Tiainen H, Landin MA, Lyngstadaas SP, Haugen HJ, Reseland JE, Ostrup E. Enhanced in vitro osteoblast differentiation on TiO2 scaffold coated with alginate hydrogel containing simvastatin. J Tissue Eng 2013; 4:2041731413515670. [PMID: 24555011 PMCID: PMC3927861 DOI: 10.1177/2041731413515670] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Accepted: 11/14/2013] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to develop a three-dimensional porous bone graft material as vehicle for simvastatin delivery and to investigate its effect on primary human osteoblasts from three donors. Highly porous titanium dioxide (TiO2) scaffolds were submerged into simvastatin containing alginate solution. Microstructure of scaffolds, visualized by scanning electron microscopy and micro-computed tomography, revealed an evenly distributed alginate layer covering the surface of TiO2 scaffold struts. Progressive and sustained simvastatin release was observed for up to 19 days. No cytotoxic effects on osteoblasts were observed by scaffolds with simvastatin when compared to scaffolds without simvastatin. Expression of osteoblast markers (collagen type I alpha 1, alkaline phosphatase, bone morphogenetic protein 2, osteoprotegerin, vascular endothelial growth factor A and osteocalcin) was quantified using real-time reverse transcriptase–polymerase chain reaction. Secretion of osteoprotegerin, vascular endothelial growth factor A and osteocalcin was analysed by multiplex immunoassay (Luminex). The relative expression and secretion of osteocalcin was significantly increased by cells cultured on scaffolds with 10 µM simvastatin when compared to scaffolds without simvastatin after 21 days. In addition, secretion of vascular endothelial growth factor A was significantly enhanced from cells cultured on scaffolds with both 10 nM and 10 µM simvastatin when compared to scaffolds without simvastatin at day 21. In conclusion, the results indicate that simvastatin-coated TiO2 scaffolds can support a sustained release of simvastatin and induce osteoblast differentiation. The combination of the physical properties of TiO2 scaffolds with the osteogenic effect of simvastatin may represent a new strategy for bone regeneration in defects where immediate load is wanted or unavailable.
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Affiliation(s)
- Helen Pullisaar
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Hanna Tiainen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Maria A Landin
- Oral Research Laboratory, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Ståle P Lyngstadaas
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Håvard J Haugen
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Janne E Reseland
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway
| | - Esben Ostrup
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Oslo, Norway ; Norwegian Center for Stem Cell Research, Institute of Immunology, Oslo University Hospital, Rikshospitalet, University of Oslo, Oslo, Norway
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11
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Canullo L, Peñarrocha D, Clementini M, Iannello G, Micarelli C. Impact of plasma of argon cleaning treatment on implant abutments in patients with a history of periodontal disease and thin biotype: radiographic results at 24-month follow-up of a RCT. Clin Oral Implants Res 2013; 26:8-14. [DOI: 10.1111/clr.12290] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2013] [Indexed: 11/28/2022]
Affiliation(s)
| | - David Peñarrocha
- Master of Oral Surgery and Implantology; Valencia University Medical and Dental School; Valencia Spain
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12
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Roszak J, Stępnik M, Nocuń M, Ferlińska M, Smok-Pieniążek A, Grobelny J, Tomaszewska E, Wąsowicz W, Cieślak M. A strategy for in vitro safety testing of nanotitania-modified textile products. JOURNAL OF HAZARDOUS MATERIALS 2013; 256-257:67-75. [PMID: 23669792 DOI: 10.1016/j.jhazmat.2013.04.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2012] [Revised: 04/12/2013] [Accepted: 04/13/2013] [Indexed: 06/02/2023]
Abstract
Titanium dioxide nanomaterials are extensively used in many applications, also for modification of textile materials. Toxicological assessment of such textile materials is currently seldom performed, mainly because of lack of appropriate guidelines. The aim of the study was to assess cytotoxic and genotoxic potential of commercially available TiO2 and TiO2/Ag NMs in pristine form as well as polypropylene fibers modified with the NMs. Both titania NMs showed a cytotoxic effect on BALB/3T3 clone A31 and V79 fibroblasts after 72-h exposure. Both NMs induced a weak genotoxic effect in comet assay, with TiO2/Ag being more active. In vitro micronucleus test on human lymphocytes revealed a weak mutagenic effect of both materials after 24h of exposure. In contrast, no significant increase in micronuclei frequency was observed in the in vitro micronucleus test on V79 fibroblasts. The 24-h extracts prepared from polypropylene fibers modified with TiO2/Ag induced a cytotoxic effect on BALB/3T3 cells which strongly depended on the mode of the fibers manufacturing. The study presents a comprehensive approach to toxicity assessment of textile fibers modified with NMs. Proposed approach may form a good "starting point" for improved future testing strategies.
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Affiliation(s)
- Joanna Roszak
- Nofer Institute of Occupational Medicine, 8 St Teresy St., 91-348 Łódź, Poland
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Pham MH, Landin MA, Tiainen H, Reseland JE, Ellingsen JE, Haugen HJ. The effect of hydrofluoric acid treatment of titanium and titanium dioxide surface on primary human osteoblasts. Clin Oral Implants Res 2013; 25:385-394. [DOI: 10.1111/clr.12150] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2013] [Indexed: 12/21/2022]
Affiliation(s)
- Maria H. Pham
- Department of Biomaterials; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Maria A. Landin
- Department of Biomaterials; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Hanna Tiainen
- Department of Biomaterials; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Janne E. Reseland
- Department of Biomaterials; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Jan Eirik Ellingsen
- Department of Prosthodontics; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
| | - Håvard J. Haugen
- Department of Biomaterials; Institute for Clinical Dentistry; Faculty of Dentistry; University of Oslo; Oslo Norway
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Pore Geometry Regulates Early Stage Human Bone Marrow Cell Tissue Formation and Organisation. Ann Biomed Eng 2013; 41:917-30. [DOI: 10.1007/s10439-013-0748-z] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Accepted: 01/20/2013] [Indexed: 11/25/2022]
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Haugen HJ, Monjo M, Rubert M, Verket A, Lyngstadaas SP, Ellingsen JE, Rønold HJ, Wohlfahrt JC. Porous ceramic titanium dioxide scaffolds promote bone formation in rabbit peri-implant cortical defect model. Acta Biomater 2013; 9:5390-9. [PMID: 22985740 DOI: 10.1016/j.actbio.2012.09.009] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 08/07/2012] [Accepted: 09/10/2012] [Indexed: 11/25/2022]
Abstract
Titanium oxide (TiO₂) scaffolds have previously been reported to exhibit very low mechanical strength. However, we have been able to produce a scaffold that features a high interconnectivity, a porosity of 91% and a compressive strength above 1.2 MPa. This study analyzed the in vivo performance of the porous TiO₂ scaffolds in a peri-implant cortical defect model in the rabbit. After 8 weeks of healing, morphological microcomputed tomography analyses of the defects treated with the TiO₂ scaffolds had significantly higher bone volume, bone surface and bone surface-to-volume ratio when compared to sham, both in the cortical and bone marrow compartment. No adverse effects, i.e. tissue necrosis or inflammation as measured by lactate dehydrogenase activity and real-time reverse transcription polymerase chain reaction analysis, were observed. Moreover, the scaffold did not hinder bone growth onto the adjacent cortical titanium implant. Histology clearly demonstrated new bone formation in the cortical sections of the defects and the presence of newly formed bone in close proximity to the scaffold surface and the surface of the adjacent Ti implant. Bone-to-material contact between the newly formed bone and the scaffold was observed in the histological sections. Islets of new bone were also present in the marrow compartment albeit in small amounts. In conclusion, the present investigation demonstrates that TiO₂ scaffolds osseointegrate well and are a suitable scaffold for peri-implant bone healing and growth.
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Rubert M, Pullisaar H, Gómez-Florit M, Ramis JM, Tiainen H, Haugen HJ, Lyngstadaas SP, Monjo M. Effect of TiO2scaffolds coated with alginate hydrogel containing a proline-rich peptide on osteoblast growth and differentiationin vitro. J Biomed Mater Res A 2012. [DOI: 10.1002/jbm.a.34458] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Bone formation in TiO2 bone scaffolds in extraction sockets of minipigs. Acta Biomater 2012; 8:2384-91. [PMID: 22395069 DOI: 10.1016/j.actbio.2012.02.020] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/30/2012] [Accepted: 02/23/2012] [Indexed: 11/23/2022]
Abstract
The osteoconductive capacity of TiO(2) scaffolds was investigated by analysing the bone ingrowth into the scaffold structure following their placement into surgically modified extraction sockets in Gottingen minipigs. Non-critical size defects were used in order to ensure sufficient bone regeneration for the evaluation of bone ingrowth to the porous scaffold structure, and sham sites were used as positive control. Microcomputed tomographic analysis revealed 73.6±11.1% of the available scaffold pore space to be occupied by newly formed bone tissue, and the volumetric bone mineral density of the regenerated bone was comparable to that of the native cortical bone. Furthermore, histological evidence of vascularization and the presence of bone lamellae surrounding some of the blood vessels were also observed within the inner regions of the scaffold, indicating that the highly interconnected pore structure of the TiO(2) scaffolds supports unobstructed formation of viable bone tissue within the entire scaffold structure. In addition, bone tissue was found to be in direct contact with 50.0±21.5% of the TiO(2) struts, demonstrating the good biocompatibility and osteoconductivity of the scaffold material.
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Tiainen H, Lyngstadaas SP, Ellingsen JE, Haugen HJ. Ultra-porous titanium oxide scaffold with high compressive strength. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:2783-92. [PMID: 20711636 PMCID: PMC2962783 DOI: 10.1007/s10856-010-4142-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Accepted: 08/03/2010] [Indexed: 05/21/2023]
Abstract
Highly porous and well interconnected titanium dioxide (TiO(2)) scaffolds with compressive strength above 2.5 MPa were fabricated without compromising the desired pore architectural characteristics, such as high porosity, appropriate pore size, surface-to-volume ratio, and interconnectivity. Processing parameters and pore architectural characteristics were investigated in order to identify the key processing steps and morphological properties that contributed to the enhanced strength of the scaffolds. Cleaning of the TiO(2) raw powder removed phosphates but introduced sodium into the powder, which was suggested to decrease the slurry stability. Strong correlation was found between compressive strength and both replication times and solid content in the ceramic slurry. Increase in the solid content resulted in more favourable sponge loading, which was achieved due to the more suitable rheological properties of the ceramic slurry. Repeated replication process induced only negligible changes in the pore architectural parameters indicating a reduced flaw size in the scaffold struts. The fabricated TiO(2) scaffolds show great promise as load-bearing bone scaffolds for applications where moderate mechanical support is required.
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Affiliation(s)
- Hanna Tiainen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109, Blindern, 0317 Oslo, Norway
| | - S. Petter Lyngstadaas
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109, Blindern, 0317 Oslo, Norway
| | - Jan Eirik Ellingsen
- Oral Research Laboratory, Institute for Clinical Dentistry, University of Oslo, PO Box 1109, Blindern, 0317 Oslo, Norway
| | - Håvard J. Haugen
- Department of Biomaterials, Institute for Clinical Dentistry, University of Oslo, PO Box 1109, Blindern, 0317 Oslo, Norway
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