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Guarnieri R, Reda R, Di Nardo D, Pagnoni F, Zanza A, Testarelli L. Prevalence of Peri-Implant Mucositis, Peri-Implantitis and Associated Risk Indicators of Implants with and without Laser-Microgrooved Collar Surface: A Long-Term (≥20 Years) Retrospective Study. J Pers Med 2024; 14:342. [PMID: 38672969 PMCID: PMC11050992 DOI: 10.3390/jpm14040342] [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: 02/16/2024] [Revised: 03/10/2024] [Accepted: 03/24/2024] [Indexed: 04/28/2024] Open
Abstract
The aim of the current study was to retrospectively investigate the prevalence of peri-implant mucositis (PIM) and peri-implantitis (P) in a long-term follow-up (≥20 years) of implants with the same body design and body surface but different collar surfaces with laser-microtextured grooves (LMGSs) vs. no laser-microtextured grooves (no-LMGSs) in private practice patients. Furthermore, several patient-related, implant-related, site-, surgical-, and prosthesis-related potential disease risk factors were analyzed. A chart review of patients receiving at least one pair of implants (one with an LMGS and the other without LMGS) in the period 1993-2002 was used. Chi-square analysis was used to determine if a statistically significant difference between the investigated variables and PIM/P was present. Possible risk factors were statistically evaluated by a binary logistic regression analysis. A total of 362 patients with 901 implant-supported restorations (438 with LMGS and 463 no-LMGS) were included in the study. The cumulative survival rates of implants at 5, 10, 15, and 20 years were 98.1%, 97.4%, 95.4%, and 89.8%, respectively, for the LMGS group, and 93.2%, 91.6%, 89.5%, and 78.3% for the no-LMGS group. The difference was statistically significant at all timepoints (p < 0.05). In total, at the end of the follow-up period, 45.7% of patients and 39.8% of implants presented PIM, and 15.6% of patients and 14% of implants presented P. A total of 164 LMGS implants (37.4%) and 195 no-LMGS implants (42.1%) presented peri-implant mucositis, while 28 (6.3%) of LMGS implants and 98 (21.1%) no-LMGS implants demonstrated peri-implantitis. Differences between LMGS implants and no-LMGS implants were statistically significant (p < 0.05). The binary logistic regression identified collar surface, cigarette smoking, histories of treated periodontitis, and lack of peri-implant maintenance as risk factors for P. After at least 20 years of function in patients followed privately, LMGS implants compared to no-LMGS implants presented a statistically and significantly lower incidence of P. Implant collar surface, cigarette smoking, previously treated periodontitis, and lack of peri-implant maintenance are factors with significant association to P.
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Affiliation(s)
| | - Rodolfo Reda
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (F.P.); (A.Z.); (L.T.)
| | - Dario Di Nardo
- Dentistry Department, Fondazione Policlinico Universitario Campus Bio-Medico di Roma, Via Álvaro del Portillo 5, 00128 Rome, Italy;
| | - Francesco Pagnoni
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (F.P.); (A.Z.); (L.T.)
| | - Alessio Zanza
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (F.P.); (A.Z.); (L.T.)
| | - Luca Testarelli
- Department of Oral and Maxillo-Facial Sciences, Sapienza University of Rome, 00161 Rome, Italy; (F.P.); (A.Z.); (L.T.)
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Staehlke S, Barth T, Muench M, Schroeter J, Wendlandt R, Oldorf P, Peters R, Nebe B, Schulz AP. The Impact of Ultrashort Pulse Laser Structuring of Metals on In-Vitro Cell Adhesion of Keratinocytes. J Funct Biomater 2024; 15:34. [PMID: 38391887 PMCID: PMC10889705 DOI: 10.3390/jfb15020034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/24/2024] [Accepted: 01/25/2024] [Indexed: 02/24/2024] Open
Abstract
Besides the need for biomaterial surface modification to improve cellular attachment, laser-structuring is favorable for designing a new surface topography for external bone fixator pins or implants. The principle of this study was to observe how bioinspired (deer antler) laser-induced nano-microstructures influenced the adhesion and growth of skin cells. The goal was to create pins that allow the skin to attach to the biomaterial surface in a bacteria-proof manner. Therefore, typical fixator metals, steel, and titanium alloy were structured using ultrashort laser pulses, which resulted in periodical nano- and microstructures. Surface characteristics were investigated using a laser scanning microscope and static water contact angle measurements. In vitro studies with human HaCaT keratinocytes focused on cell adhesion, morphology, actin formation, and growth within 7 days. The study showed that surface functionalization influenced cell attachment, spreading, and proliferation. Micro-dimple clusters on polished bulk metals (DC20) will not hinder viability. Still, they will not promote the initial adhesion and spreading of HaCaTs. In contrast, additional nanostructuring with laser-induced periodic surface structures (LIPSS) promotes cell behavior. DC20 + LIPSS induced enhanced cell attachment with well-spread cell morphology. Thus, the bioinspired structures exhibited a benefit in initial cell adhesion. Laser surface functionalization opens up new possibilities for structuring, and is relevant to developing bioactive implants in regenerative medicine.
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Affiliation(s)
- Susanne Staehlke
- Institute for Cell Biology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Tobias Barth
- Laboratory for Biomechanics, BG Hospital Hamburg, 21033 Hamburg, Germany
| | - Matthias Muench
- Laboratory for Biomechanics, BG Hospital Hamburg, 21033 Hamburg, Germany
| | - Joerg Schroeter
- Clinic for Orthopedics and Trauma Surgery, University Hospital Schleswig-Holstein, Campus Lübeck, 23538 Lübeck, Germany
| | - Robert Wendlandt
- Clinic for Orthopedics and Trauma Surgery, University Hospital Schleswig-Holstein, Campus Lübeck, 23538 Lübeck, Germany
| | - Paul Oldorf
- SLV Mecklenburg-Vorpommern GmbH, 18069 Rostock, Germany
| | - Rigo Peters
- SLV Mecklenburg-Vorpommern GmbH, 18069 Rostock, Germany
| | - Barbara Nebe
- Institute for Cell Biology, University Medical Center Rostock, 18057 Rostock, Germany
| | - Arndt-Peter Schulz
- Laboratory for Biomechanics, BG Hospital Hamburg, 21033 Hamburg, Germany
- Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering, 23562 Lübeck, Germany
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Garcia-de-Albeniz N, Ginebra MP, Jimenez-Piqué E, Roa JJ, Mas-Moruno C. Influence of nanosecond laser surface patterning on dental 3Y-TZP: Effects on the topography, hydrothermal degradation and cell response. Dent Mater 2024; 40:139-150. [PMID: 37951750 DOI: 10.1016/j.dental.2023.10.026] [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: 01/20/2023] [Revised: 10/11/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023]
Abstract
OBJECTIVES Laser surface micropatterning of dental-grade zirconia (3Y-TZP) was explored with the objective of providing defined linear patterns capable of guiding bone-cell response. METHODS A nanosecond (ns-) laser was employed to fabricate microgrooves on the surface of 3Y-TZP discs, yielding three different groove periodicities (i.e., 30, 50 and 100 µm). The resulting topography and surface damage were characterized by confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). X-Ray diffraction (XRD) and Raman spectroscopy techniques were employed to assess the hydrothermal degradation resistance of the modified topographies. Preliminary biological studies were conducted to evaluate adhesion (6 h) of human mesenchymal stem cells (hMSC) to the patterns in terms of cell number and morphology. Finally, Staphylococcus aureus adhesion (4 h) to the microgrooves was investigated. RESULTS The surface analysis showed grooves of approximately 1.8 µm height that exhibited surface damage in the form of pile-up at the edge of the microgrooves, microcracks and cavities. Accelerated aging tests revealed a slight decrease of the hydrothermal degradation resistance after laser patterning, and the Raman mapping showed the presence of monoclinic phase heterogeneously distributed along the patterned surfaces. An increase of the hMSC area was identified on all the microgrooved surfaces, although only the 50 µm periodicity, which is closer to the cell size, significantly favored cell elongation and alignment along the grooves. A decrease in Staphylococcus aureus adhesion was observed on the investigated micropatterns. SIGNIFICANCE The study suggests that linear microgrooves of 50 µm periodicity may help in promoting hMSC adhesion and alignment, while reducing bacterial cell attachment.
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Affiliation(s)
- N Garcia-de-Albeniz
- Center for Structural Integrity, Reliability and Micromechanics of Materials (CIEFMA), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain; Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya, BarcelonaTECH, 08019 Barcelona, Spain
| | - M-P Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya, BarcelonaTECH, 08019 Barcelona, Spain; Barcelona Research Center in ssMultiscale Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain; Institute for Bioengineering of Catalonia (IBEC), Barcelona Institute of Science and Technology, 08028 Barcelona, Spain
| | - E Jimenez-Piqué
- Center for Structural Integrity, Reliability and Micromechanics of Materials (CIEFMA), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain; Barcelona Research Center in ssMultiscale Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain
| | - J J Roa
- Center for Structural Integrity, Reliability and Micromechanics of Materials (CIEFMA), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain; Barcelona Research Center in ssMultiscale Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain.
| | - C Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group (BBT), Department of Materials Science and Engineering, Universitat Politècnica de Catalunya, BarcelonaTECH, 08019 Barcelona, Spain; Barcelona Research Center in ssMultiscale Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTECH, 08019 Barcelona, Spain.
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Papa S, Maalouf M, Claudel P, Sedao X, Di Maio Y, Hamzeh-Cognasse H, Thomas M, Guignandon A, Dumas V. Key topographic parameters driving surface adhesion of Porphyromonas gingivalis. Sci Rep 2023; 13:15893. [PMID: 37741851 PMCID: PMC10518006 DOI: 10.1038/s41598-023-42387-5] [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: 05/17/2023] [Accepted: 09/09/2023] [Indexed: 09/25/2023] Open
Abstract
Dental implant failure is primarily due to peri-implantitis, a consequence of bacterial biofilm formation. Bacterial adhesion is strongly linked to micro-/nano-topographies of a surface; thus an assessment of surface texture parameters is essential to understand bacterial adhesion. In this study, mirror polished titanium samples (Ti6Al4V) were irradiated with a femtosecond laser (fs-L) at a wavelength of 1030 nm (infrared) with variable laser parameters (laser beam polarization, number, spacing and organization of the impacts). Images of 3-D topographies were obtained by focal variation microscopy and analyzed with MountainsMap software to measure surface parameters. From bacteria associated with peri-implantitis, we selected Porphyromonas gingivalis to evaluate its adhesion on Ti6Al4V surfaces in an in vitro study. Correlations between various surface parameters and P. gingivalis adhesion were investigated. We discovered that Sa value, a common measure of surface roughness, was not sufficient in describing the complexity of these fs-L treated surfaces and their bacterial interaction. We found that Sku, density and mean depths of the furrows, were the most accurate parameters for this purpose. These results provide important information that could help anticipate the bacterial adhesive properties of a surface based on its topographic parameters, thus the development of promising laser designed biofunctional implants.
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Affiliation(s)
- Steve Papa
- INSERM, SAINBIOSE U1059, Mines Saint-Etienne, Université Jean Monnet Saint-Étienne, 42023, Saint-Étienne, France.
| | - Mathieu Maalouf
- INSERM, SAINBIOSE U1059, Mines Saint-Etienne, Université Jean Monnet Saint-Étienne, 42023, Saint-Étienne, France
| | - Pierre Claudel
- GIE Manutech-USD, 20 Rue Benoît Lauras, 42000, Saint-Étienne, France
| | - Xxx Sedao
- GIE Manutech-USD, 20 Rue Benoît Lauras, 42000, Saint-Étienne, France
- Laboratory Hubert Curien, UMR 5516 CNRS, Jean Monnet University, University of Lyon, 42000, Saint-Étienne, France
| | - Yoan Di Maio
- GIE Manutech-USD, 20 Rue Benoît Lauras, 42000, Saint-Étienne, France
| | - Hind Hamzeh-Cognasse
- INSERM, SAINBIOSE U1059, Mines Saint-Etienne, Université Jean Monnet Saint-Étienne, 42023, Saint-Étienne, France
| | - Mireille Thomas
- INSERM, SAINBIOSE U1059, Mines Saint-Etienne, Université Jean Monnet Saint-Étienne, 42023, Saint-Étienne, France
| | - Alain Guignandon
- INSERM, SAINBIOSE U1059, Mines Saint-Etienne, Université Jean Monnet Saint-Étienne, 42023, Saint-Étienne, France
| | - Virginie Dumas
- Ecole Centrale de Lyon, CNRS, ENTPE, LTDS, UMR5513, ENISE, Univ Lyon, 42023, Saint-Étienne, France
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Cruz MB, Silva N, Marques JF, Mata A, Silva FS, Caramês J. Biomimetic Implant Surfaces and Their Role in Biological Integration-A Concise Review. Biomimetics (Basel) 2022; 7:74. [PMID: 35735590 PMCID: PMC9220941 DOI: 10.3390/biomimetics7020074] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/25/2022] [Accepted: 05/27/2022] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The increased use of dental implants in oral rehabilitation has been followed by the development of new biomaterials as well as improvements in the performance of biomaterials already in use. This triggers the need for appropriate analytical approaches to assess the biological and, ultimately, clinical benefits of these approaches. AIMS To address the role of physical, chemical, mechanical, and biological characteristics in order to determine the critical parameters to improve biological responses and the long-term effectiveness of dental implant surfaces. DATA SOURCES AND METHODS Web of Science, MEDLINE and Lilacs databases were searched for the last 30 years in English, Spanish and Portuguese idioms. RESULTS Chemical composition, wettability, roughness, and topography of dental implant surfaces have all been linked to biological regulation in cell interactions, osseointegration, bone tissue and peri-implant mucosa preservation. CONCLUSION Techniques involving subtractive and additive methods, especially those involving laser treatment or embedding of bioactive nanoparticles, have demonstrated promising results. However, the literature is heterogeneous regarding study design and methodology, which limits comparisons between studies and the definition of the critical determinants of optimal cell response.
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Affiliation(s)
- Mariana Brito Cruz
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Rua Professora Teresa Ambrósio, 1600-277 Lisboa, Portugal; (J.F.M.); (A.M.)
| | - Neusa Silva
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), LIBPhys-FTC UID/FIS/04559/2013, Rua Professora Teresa Ambrósio, 1600-277 Lisboa, Portugal;
| | - Joana Faria Marques
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Rua Professora Teresa Ambrósio, 1600-277 Lisboa, Portugal; (J.F.M.); (A.M.)
| | - António Mata
- Universidade de Lisboa, Faculdade de Medicina Dentária, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Rua Professora Teresa Ambrósio, 1600-277 Lisboa, Portugal; (J.F.M.); (A.M.)
- Cochrane Portugal, Instituto de Saúde Baseada na Evidência (ISBE), Faculdade de Medicina Dentária, Universidade de Lisboa, Avenida Professor Egas Moniz, 1649-028 Lisboa, Portugal
| | - Felipe Samuel Silva
- Center for Microelectromechanical Systems (CMEMS), Department of Mechanical Engineering, University of Minho, 4800-058 Guimarães, Portugal;
| | - João Caramês
- Bone Physiology Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, Rua Professora Teresa Ambrósio, 1600-277 Lisboa, Portugal;
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Maalouf M, Abou Khalil A, Di Maio Y, Papa S, Sedao X, Dalix E, Peyroche S, Guignandon A, Dumas V. Polarization of Femtosecond Laser for Titanium Alloy Nanopatterning Influences Osteoblastic Differentiation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1619. [PMID: 35630841 PMCID: PMC9147489 DOI: 10.3390/nano12101619] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 12/23/2022]
Abstract
Ultrashort pulse lasers have significant advantages over conventional continuous wave and long pulse lasers for the texturing of metallic surfaces, especially for nanoscale surface structure patterning. Furthermore, ultrafast laser beam polarization allows for the precise control of the spatial alignment of nanotextures imprinted on titanium-based implant surfaces. In this article, we report the biological effect of beam polarization on human mesenchymal stem cell differentiation. We created, on polished titanium-6aluminum-4vanadium (Ti-6Al-4V) plates, a laser-induced periodic surface structure (LIPSS) using linear or azimuthal polarization of infrared beams to generate linear or radial LIPSS, respectively. The main difference between the two surfaces was the microstructural anisotropy of the linear LIPSS and the isotropy of the radial LIPSS. At 7 d post seeding, cells on the radial LIPSS surface showed the highest extracellular fibronectin production. At 14 days, qRT-PCR showed on the same surface an increase in osteogenesis-related genes, such as alkaline phosphatase and osterix. At 21 d, mineralization clusters indicative of final osteoinduction were more abundant on the radial LIPSS. Taken together, we identified that creating more isotropic than linear surfaces enhances cell differentiation, resulting in an improved osseointegration. Thus, the fine tuning of ultrashort pulse lasers may be a promising new route for the functionalization of medical implants.
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Affiliation(s)
- Mathieu Maalouf
- SAINBIOSE Laboratory INSERM U1509, Jean Monnet University, University of Lyon, F-42270 Saint Priest en Jarez, France; (S.P.); (E.D.); (S.P.); (A.G.)
| | - Alain Abou Khalil
- Hubert-Curien Laboratory, Jean Monnet University, University of Lyon, UMR 5516 CNRS, F-42000 Saint-Etienne, France; (A.A.K.); (X.S.)
| | - Yoan Di Maio
- GIE Manutech-USD, F-42000 Saint-Etienne, France;
| | - Steve Papa
- SAINBIOSE Laboratory INSERM U1509, Jean Monnet University, University of Lyon, F-42270 Saint Priest en Jarez, France; (S.P.); (E.D.); (S.P.); (A.G.)
| | - Xxx Sedao
- Hubert-Curien Laboratory, Jean Monnet University, University of Lyon, UMR 5516 CNRS, F-42000 Saint-Etienne, France; (A.A.K.); (X.S.)
- GIE Manutech-USD, F-42000 Saint-Etienne, France;
| | - Elisa Dalix
- SAINBIOSE Laboratory INSERM U1509, Jean Monnet University, University of Lyon, F-42270 Saint Priest en Jarez, France; (S.P.); (E.D.); (S.P.); (A.G.)
| | - Sylvie Peyroche
- SAINBIOSE Laboratory INSERM U1509, Jean Monnet University, University of Lyon, F-42270 Saint Priest en Jarez, France; (S.P.); (E.D.); (S.P.); (A.G.)
| | - Alain Guignandon
- SAINBIOSE Laboratory INSERM U1509, Jean Monnet University, University of Lyon, F-42270 Saint Priest en Jarez, France; (S.P.); (E.D.); (S.P.); (A.G.)
| | - Virginie Dumas
- Laboratory of Tribology and Systems Dynamics, Ecole Nationale d’Ingénieurs de Saint Etienne, Ecole Centrale de Lyon, University of Lyon, UMR 5513 CNRS, F-42100 Saint-Etienne, France;
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Modification of Zirconia Implant Surfaces by Nd:YAG Laser Grooves: Does It Change Cell Behavior? Biomimetics (Basel) 2022; 7:biomimetics7020049. [PMID: 35645176 PMCID: PMC9149890 DOI: 10.3390/biomimetics7020049] [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: 03/22/2022] [Revised: 04/12/2022] [Accepted: 04/14/2022] [Indexed: 12/10/2022] Open
Abstract
The aim of this study was to evaluate gingival fibroblasts and human osteoblasts’ response to textured Nd:YAG laser microgrooves, with different dimensions, on zirconia implant surfaces. A total of 60 zirconia disks (8 mm in diameter and 2 mm in thickness) were produced and divided between four study groups (N = 15): three laser-textured (widths between 125.07 ± 5.29 μm and 45.36 ± 2.37 μm and depth values from 50.54 ± 2.48 μm to 23.01 ± 3.79 μm) and a control group without laser treatment. Human osteoblasts and gingival fibroblasts were cultured on these surfaces for 14 days. FEG-SEM (Field Emission Gun–Scanning Electron Microscope) images showed cellular adhesion at 24 h, with comparable morphology in all samples for both cell types. A similar cell spreading within the grooves and in the space between them was observed. Cell viability increased over time in all study groups; however, no differences were found between them. Additionally, proliferation, ALP (Alkaline phosphatase) activity, collagen type I, osteopontin and interleukin levels were not significantly different between any of the study groups for any of the cell types. Analysis of variance to compare parameters effect did not reveal statistically significant differences when comparing all groups in the different tests performed. The results obtained revealed similar cell behavior based on cell viability and differentiation on different microtopographic laser grooves, compared to a microtopography only established by sandblasting and acid-etching protocol, the reference surface treatment on zirconia dental implants.
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Wang Y, Yu Z, Li K, Hu J. Study on the effect of surface characteristics of short-pulse laser patterned titanium alloy on cell proliferation and osteogenic differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112349. [PMID: 34474898 DOI: 10.1016/j.msec.2021.112349] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/23/2021] [Accepted: 07/26/2021] [Indexed: 01/14/2023]
Abstract
Concise, low-cost preparation of titanium alloy implants with high cell proliferation and osteogenic differentiation is urgently needed. Nanosecond laser ablation of titanium alloy has the advantages of short processing time, less pollution, and non-contact. In this research, we adopt a nanosecond UV laser to process the closed groove and cross groove titanium alloys with length to width ratio of 1:1, 2.5:1, 4:1, and 6:1. The surface morphology, surface roughness, phase, element distribution, surface chemistry, and wettability were characterized. The effect of the patterned surface's properties on the adhesion, proliferation, and osteogenic differentiation of stem cells was studied. The results show the laser-ablated lattice structure's surface energy can increase rapidly in the natural environment. The cell adhesion of stem cells on a lattice structure with low roughness and high surface energy is optimal. The element concentration at the ablated edges is higher than at the bottom under Marangoni and surface tension. Stem cells preferentially adhere to the ablated edges with high roughness, element concentration, and hardness. Cell differentiation is chiefly affected by patterning structure. On the surface of the boss structure with a length to width ratio of 2.5:1, the proportion of cell length to diameter is about 2.5, and the cell area is greater. The osteogenic differentiation of cells is the highest on the surface.
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Affiliation(s)
- Yifei Wang
- College of Mechanical Engineering, Donghua University, Shanghai 201620, China
| | - Zhou Yu
- Institute of Artificial Intelligence, Donghua University, Shanghai 201620, China
| | - Kangmei Li
- Shanghai Collaborative Innovation Center for High Performance Fiber composites, Donghua University, Shanghai 201620, China; State Key Lab of Digital Manufacturing Equipment & Technology, Wuhan 430074, China
| | - Jun Hu
- Institute of Artificial Intelligence, Donghua University, Shanghai 201620, China.
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da Cruz MB, Marques JF, Fernandes BF, Pinto P, Madeira S, Carvalho Ó, Silva FS, Caramês JMM, da Mata ADSP. Laser surface treatment on Yttria-stabilized zirconia dental implants: Influence on cell behavior. J Biomed Mater Res B Appl Biomater 2021; 110:249-258. [PMID: 34278714 DOI: 10.1002/jbm.b.34909] [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: 01/30/2021] [Revised: 05/29/2021] [Accepted: 07/08/2021] [Indexed: 11/08/2022]
Abstract
Yttria-stabilized zirconia (YSZ) is being proposed as an alternative material to Titanium for dental implants due to its aesthetic and biocompatibility properties. However, is it yet to define the optimal surface treatment to improve YSZ bioactivy. Texturization is a promising approach, but the biological role of patterned YSZ surfaces in cell cultures is yet to be determined. Thus, cellular behavior of osteoblasts and fibroblasts in contact with groove-texturized YSZ surfaces was investigated. YSZ discs were groove-textured by conventional milling and Nd:YAG laser. All samples including control were sandblasted and acid-etched. Human osteoblasts and fibroblasts were cultured on discs for 14 days. Morphology and cellular adhesion were observed. Cell viability, interleukin-1β, osteopontin, collagen type I prodution, alkaline phosphatase activity, and interleukin-8 were measured. YSZ texturization by conventional milling improved osteoblasts viability and differentiation when compared to laser texturization. Fibroblasts behavior did not seem to be influenced by the texturing technique. Compared to sandblasting and acid etching currently used as gold standard for zirconia dental implants no superiority of macrotexturization was found.
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Affiliation(s)
- Mariana Brito da Cruz
- Oral Biology and Biochemistry Research Group-UICOB, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - Joana Faria Marques
- Oral Biology and Biochemistry Research Group-UICOB, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - Beatriz Ferreira Fernandes
- Oral Biology and Biochemistry Research Group-UICOB, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - Paulo Pinto
- Center for Microelectromechanical Systems (CMEMS), Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - Sara Madeira
- Center for Microelectromechanical Systems (CMEMS), Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - Óscar Carvalho
- Center for Microelectromechanical Systems (CMEMS), Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - Filipe Samuel Silva
- Center for Microelectromechanical Systems (CMEMS), Department of Mechanical Engineering, University of Minho, Guimarães, Portugal
| | - João Manuel Mendez Caramês
- Implant & Tissue Regeneration Group-Unidade de Investigação em Ciências Orais e Biomédicas (UICOB); LIBPhys-FCT UID/FIS/04559/2013, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
| | - António Duarte Sola Pereira da Mata
- Oral Biology and Biochemistry Research Group - UICOB; LIBPhys-FTC UID/FIS/04559/2013, Faculdade de Medina Dentária, Universidade de Lisboa, Lisbon, Portugal.,CEMDBE - Cochrane Portugal, Faculdade de Medicina Dentária, Universidade de Lisboa, Lisbon, Portugal
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Liu Y, Rui Z, Cheng W, Song L, Xu Y, Li R, Zhang X. Characterization and evaluation of a femtosecond laser-induced osseointegration and an anti-inflammatory structure generated on a titanium alloy. Regen Biomater 2021; 8:rbab006. [PMID: 33738120 PMCID: PMC7955712 DOI: 10.1093/rb/rbab006] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/05/2021] [Accepted: 01/14/2021] [Indexed: 02/07/2023] Open
Abstract
Cell–material interactions during early osseointegration of the bone–implant interface are critical and involve crosstalk between osteoblasts and osteoclasts. The surface properties of titanium implants also play a critical role in cell–material interactions. In this study, femtosecond laser treatment and sandblasting were used to alter the surface morphology, roughness and wettability of a titanium alloy. Osteoblasts and osteoclasts were then cultured on the resulting titanium alloy disks. Four disk groups were tested: a polished titanium alloy (pTi) control; a hydrophilic micro-dislocation titanium alloy (sandblasted Ti (STi)); a hydrophobic nano-mastoid Ti alloy (femtosecond laser-treated Ti (FTi)); and a hydrophilic hierarchical hybrid micro-/nanostructured Ti alloy [femtosecond laser-treated and sandblasted Ti (FSTi)]. The titanium surface treated by the femtosecond laser and sandblasting showed higher biomineralization activity and lower cytotoxicity in simulated body fluid and lactate dehydrogenase assays. Compared to the control surface, the multifunctional titanium surface induced a better cellular response in terms of proliferation, differentiation, mineralization and collagen secretion. Further investigation of macrophage polarization revealed that increased anti-inflammatory factor secretion and decreased proinflammatory factor secretion occurred in the early response of macrophages. Based on the above results, the synergistic effect of the surface properties produced an excellent cellular response at the bone–implant interface, which was mainly reflected by the promotion of early ossteointegration and macrophage polarization.
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Affiliation(s)
- Yang Liu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, China.,Institute of Medical Service Support, Institute of Systems Engineering, Academy of Military Sciences, Tianjin, China
| | - Zhongying Rui
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Wei Cheng
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, China.,Institute of Medical Service Support, Institute of Systems Engineering, Academy of Military Sciences, Tianjin, China
| | - Licheng Song
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, China.,Institute of Medical Service Support, Institute of Systems Engineering, Academy of Military Sciences, Tianjin, China
| | - Yunqiang Xu
- Department of Orthopedics, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ruixin Li
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin Stomatological Hospital, The Affiliated Stomatological Hospital of Nankai University, Tianjin 300041, China
| | - Xizheng Zhang
- Institute of Medical Service Support, Institute of Systems Engineering, Academy of Military Sciences, Tianjin, China
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11
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Klos A, Sedao X, Itina TE, Helfenstein-Didier C, Donnet C, Peyroche S, Vico L, Guignandon A, Dumas V. Ultrafast Laser Processing of Nanostructured Patterns for the Control of Cell Adhesion and Migration on Titanium Alloy. NANOMATERIALS 2020; 10:nano10050864. [PMID: 32365835 PMCID: PMC7712038 DOI: 10.3390/nano10050864] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 12/28/2022]
Abstract
Femtosecond laser texturing is a promising surface functionalization technology to improve the integration and durability of dental and orthopedic implants. Four different surface topographies were obtained on titanium-6aluminum-4vanadium plates by varying laser processing parameters and strategies: surfaces presenting nanostructures such as laser-induced periodic surface structures (LIPSS) and ‘spikes’, associated or not with more complex multiscale geometries combining micro-pits, nanostructures and stretches of polished areas. After sterilization by heat treatment, LIPSS and spikes were characterized to be highly hydrophobic, whereas the original polished surfaces remained hydrophilic. Human mesenchymal stem cells (hMSCs) grown on simple nanostructured surfaces were found to spread less with an increased motility (velocity, acceleration, tortuosity), while on the complex surfaces, hMSCs decreased their migration when approaching the micro-pits and preferentially positioned their nucleus inside them. Moreover, focal adhesions of hMSCs were notably located on polished zones rather than on neighboring nanostructured areas where the protein adsorption was lower. All these observations indicated that hMSCs were spatially controlled and mechanically strained by the laser-induced topographies. The nanoscale structures influence surface wettability and protein adsorption and thus influence focal adhesions formation and finally induce shape-based mechanical constraints on cells, known to promote osteogenic differentiation.
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Affiliation(s)
- Antoine Klos
- SAINBIOSE Laboratory INSERM U1059, University of Lyon, Jean Monnet University, F-42270 Saint Priest en Jarez, France; (A.K.); (S.P.); (L.V.); (A.G.)
| | - Xxx Sedao
- Hubert Curien Laboratory, University of Lyon, Jean Monnet University, UMR 5516 CNRS, F-42000 Saint-Etienne, France; (X.S.); (T.E.I.); (C.D.)
- GIE Manutech-USD, 20 rue Benoit Lauras, F-42000 Saint-Etienne, France
| | - Tatiana E. Itina
- Hubert Curien Laboratory, University of Lyon, Jean Monnet University, UMR 5516 CNRS, F-42000 Saint-Etienne, France; (X.S.); (T.E.I.); (C.D.)
| | - Clémentine Helfenstein-Didier
- Laboratory of Tribology and Systems Dynamics, National School of Engineers of Saint-Etienne, University of Lyon, UMR 5513 CNRS, F-42100 Saint-Etienne, France;
| | - Christophe Donnet
- Hubert Curien Laboratory, University of Lyon, Jean Monnet University, UMR 5516 CNRS, F-42000 Saint-Etienne, France; (X.S.); (T.E.I.); (C.D.)
| | - Sylvie Peyroche
- SAINBIOSE Laboratory INSERM U1059, University of Lyon, Jean Monnet University, F-42270 Saint Priest en Jarez, France; (A.K.); (S.P.); (L.V.); (A.G.)
| | - Laurence Vico
- SAINBIOSE Laboratory INSERM U1059, University of Lyon, Jean Monnet University, F-42270 Saint Priest en Jarez, France; (A.K.); (S.P.); (L.V.); (A.G.)
| | - Alain Guignandon
- SAINBIOSE Laboratory INSERM U1059, University of Lyon, Jean Monnet University, F-42270 Saint Priest en Jarez, France; (A.K.); (S.P.); (L.V.); (A.G.)
| | - Virginie Dumas
- Laboratory of Tribology and Systems Dynamics, National School of Engineers of Saint-Etienne, University of Lyon, UMR 5513 CNRS, F-42100 Saint-Etienne, France;
- Correspondence:
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12
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Li C, Yang Y, Yang L, Shi Z, Yang P, Cheng G. In Vitro Bioactivity and Biocompatibility of Bio-Inspired Ti-6Al-4V Alloy Surfaces Modified by Combined Laser Micro/Nano Structuring. Molecules 2020; 25:E1494. [PMID: 32218344 PMCID: PMC7180722 DOI: 10.3390/molecules25071494] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 11/25/2022] Open
Abstract
The bioactivity and biocompatibility play key roles in the success of dental and orthopaedic implants. Although most commercial implant systems use various surface microstructures, the ideal multi-scale topographies capable of controlling osteointegration have not yielded conclusive results. Inspired by both the isotropic adhesion of the skin structures in tree frog toe pads and the anisotropic adhesion of the corrugated ridges on the scales of Morpho butterfly wings, composite micro/nano-structures, including the array of micro-hexagons and oriented nano-ripples on titanium alloy implants, were respectively fabricated by microsecond laser direct writing and femtosecond laser-induced periodic surface structures, to improve cell adherence, alignment and proliferation on implants. The main differences in both the bioactivity in simulated body fluid and the biocompatibility in osteoblastic cell MC3T3 proliferation were measured and analyzed among Ti-6Al-4V samples with smooth surface, micro-hexagons and composite micro/nano-structures, respectively. Of note, bioinspired micro/nano-structures displayed the best bioactivity and biocompatibility after in vitro experiments, and meanwhile, the nano-ripples were able to induce cellular alignment within the micro-hexagons. The reasons for these differences were found in the topographical cues. An innovative functionalization strategy of controlling the osteointegration on titanium alloy implants is proposed using the composite micro/nano-structures, which is meaningful in various regenerative medicine applications and implant fields.
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Affiliation(s)
- Chen Li
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (L.Y.); (Z.S.)
| | - Yong Yang
- State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, CAS, Xi’an 710119, China;
| | - Lijun Yang
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (L.Y.); (Z.S.)
| | - Zhen Shi
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China; (L.Y.); (Z.S.)
| | - Pengfei Yang
- Key Laboratory of Space Radiobiology of Gansu Province, Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Institute of Modern Physics, CAS, Lanzhou 730000, China;
| | - Guanghua Cheng
- School of Electronics and Information, Northwestern Polytechnical University, Xi’an 710072, China;
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13
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Said F, Moeen F, Khan MT, Mansoor A, Uzbek UH, Alam MK, Siddiqui AA. Cytotoxicity, Morphology and Chemical Composition of Two Luting Cements: An in Vitro Study. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2020. [DOI: 10.1590/pboci.2020.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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14
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Abstract
Bioceramics are a great alternative to use in implants due to their excellent biocompatibility and good mechanical properties. Depending on their composition, bioceramics can be classified into bioinert and bioactive, which relate to their interaction with the surrounding living tissue. Surface morphology also has great influence on the implant biological behavior. Controlled texturing can improve osseointegration and reduce biofilm formation. Among the techniques to produce nano- and micropatterns, laser texturing has shown promising results due to its excellent accuracy and reproducibility. In this work, the use of laser techniques to improve surface morphology of biomaterials is reviewed, focusing on the application of direct laser interference patterning (DLIP) technique in bioceramics.
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15
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Bouet G, Cabanettes F, Bidron G, Guignandon A, Peyroche S, Bertrand P, Vico L, Dumas V. Laser-Based Hybrid Manufacturing of Endosseous Implants: Optimized Titanium Surfaces for Enhancing Osteogenic Differentiation of Human Mesenchymal Stem Cells. ACS Biomater Sci Eng 2019; 5:4376-4385. [PMID: 33438403 DOI: 10.1021/acsbiomaterials.9b00769] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Additive manufacturing (AM) is becoming increasingly important in the orthopedic and dental sectors thanks to two major advantages: the possibility of custom manufacturing and the integration of complex structures. However, at smaller scales, surface conditions of AM products are not mastered. Numerous non-fused powder particles give rise to roughness values (Sa) greater than 10 μm, thus limiting biomedical applications since the surface roughness of, e.g., metal implants plays a major role in the quality and rate of osseointegration. In this study, an innovative hybrid machine combining AM and a femtosecond laser (FS) was used to obtain Ti6Al4V parts with biofunctional surfaces. During the manufacturing process, the FS laser beam "neatly" ablates the surface, leaving in its path nanostructures created by the laser/matter interaction. This step decreases the Sa from 11 to 4 μm and increases the surface wettability. The behavior of human mesenchymal stem cells was evaluated on these new AM+FS surfaces and compared with that on AM surfaces and also on polished surfaces. The number of cells attached 24 h after plating is equivalent on all surfaces, but cell spreading is higher on AM+FS surfaces compared with their AM counterparts. In the longer term (days 7 and 14), fibronectin and collagen synthesis increase on AM+FS surfaces as opposed to AM alone. Alkaline phosphatase activity, osteocalcin production, and mineralization, markers of osteogenic differentiation, are significantly lower on raw AM surfaces, whereas on the AM+FS specimens they display a level equivalent to that on the polished surface. Overall, these results indicate that using an FS laser beam during the fabrication of AM parts optimizes surface morphology to favor osteoblastic differentiation. This new hybrid machine could make it possible to produce AM implants with functional surfaces directly at the end of AM, thereby limiting their post-treatments.
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Affiliation(s)
- Guenaelle Bouet
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Frédéric Cabanettes
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Guillaume Bidron
- GIE Manutech-USD (Ultrafast Surface Design), 20 Rue Professeur Benoît Lauras, 42000 Saint-Etienne, France
| | - Alain Guignandon
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Sylvie Peyroche
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Philippe Bertrand
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
| | - Laurence Vico
- INSERM U1059-SAINBIOSE, University of Lyon, 42270 Saint-Priest-en-Jarez, France
| | - Virginie Dumas
- Ecole Nationale d'Ingénieurs de Saint-Etienne, Laboratoire de Tribologie et Dynamique des Systèmes, UMR 5513 CNRS, University of Lyon, 58, rue Jean Parot, 42023 Saint-Etienne, France
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16
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Influence of multiscale and curved structures on the migration of stem cells. Biointerphases 2018; 13:06D408. [DOI: 10.1116/1.5042747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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18
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Wang Z, Zhou R, Wen F, Zhang R, Ren L, Teoh SH, Hong M. Reliable laser fabrication: the quest for responsive biomaterials surface. J Mater Chem B 2018; 6:3612-3631. [DOI: 10.1039/c7tb02545a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
This review presents current efforts in laser fabrication, focusing on the surface features of biomaterials and their biological responses; this provides insight into the engineering of bio-responsive surfaces for future medical devices.
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Affiliation(s)
- Zuyong Wang
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
| | - Rui Zhou
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Feng Wen
- School of Chemical and Biomedical Engineering
- Nanyang Technological University
- Singapore 637457
- Singapore
| | - Rongkai Zhang
- The Third Affiliated Hospital of Southern Medical University
- Guangzhou 510630
- P. R. China
| | - Lei Ren
- College of Materials Science
- Xiamen University
- Xiamen 361005
- P. R. China
| | - Swee Hin Teoh
- College of Materials Science and Engineering
- Hunan University
- Changsha 410082
- P. R. China
- School of Chemical and Biomedical Engineering
| | - Minghui Hong
- School of Aerospace Engineering
- Xiamen University
- Xiamen 361005
- P. R. China
- Department of Electrical and Computer Engineering
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19
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Gui N, Xu W, Myers DE, Shukla R, Tang HP, Qian M. The effect of ordered and partially ordered surface topography on bone cell responses: a review. Biomater Sci 2018; 6:250-264. [DOI: 10.1039/c7bm01016h] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Current understanding of the role of ordered and partially ordered surface topography in bone cell responses for bone implant design.
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Affiliation(s)
- N. Gui
- Centre for Additive Manufacturing
- School of Engineering
- RMIT University
- Melbourne
- Australia
| | - W. Xu
- Department of Engineering
- Macquarie University
- Sydney
- Australia
| | - D. E. Myers
- Australian Institute for Musculoskeletal Science
- Victoria University and University of Melbourne
- Australia
- College of Health and Biomedicine
- Victoria University
| | - R. Shukla
- Nanobiotechnology Research Laboratory and Centre for Advanced Materials & Industrial Chemistry
- School of Science
- RMIT University
- Melbourne
- Australia
| | - H. P. Tang
- State Key Laboratory of Porous Metal Materials
- Northwest Institute for Nonferrous Metal Research
- and Xi'an Sailong Metal Materials Co. Ltd
- Xi'an 710016
- China
| | - M. Qian
- Centre for Additive Manufacturing
- School of Engineering
- RMIT University
- Melbourne
- Australia
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20
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Zhukova Y, Ulasevich SA, Dunlop JWC, Fratzl P, Möhwald H, Skorb EV. Ultrasound-driven titanium modification with formation of titania based nanofoam surfaces. ULTRASONICS SONOCHEMISTRY 2017; 36:146-154. [PMID: 28069194 DOI: 10.1016/j.ultsonch.2016.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 10/11/2016] [Accepted: 11/08/2016] [Indexed: 05/21/2023]
Abstract
Titanium has been widely used as biomaterial for various medical applications because of its mechanical strength and inertness. This on the other hand makes it difficult to structure it. Nanostructuring can improve its performance for advanced applications such as implantation and lab-on-chip systems. In this study we show that a titania nanofoam on titanium can be formed under high intensity ultrasound (HIUS) treatment in alkaline solution. The physicochemical properties and morphology of the titania nanofoam are investigated in order to find optimal preparation conditions for producing surfaces with high wettability for cell culture studies and drug delivery applications. AFM and contact angle measurements reveal, that surface roughness and wettability of the surfaces depend nonmonotonously on ultrasound intensity and duration of treatment, indicating a competition between HIUS induced roughening and smoothening mechanisms. We finally demonstrate that superhydrophilic bio-and cytocompatible surfaces can be fabricated with short time ultrasonic treatment.
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Affiliation(s)
- Yulia Zhukova
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.
| | - Sviatlana A Ulasevich
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - John W C Dunlop
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Peter Fratzl
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Helmuth Möhwald
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Ekaterina V Skorb
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
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21
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Zhukova Y, Skorb EV. Cell Guidance on Nanostructured Metal Based Surfaces. Adv Healthc Mater 2017; 6. [PMID: 28196304 DOI: 10.1002/adhm.201600914] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 11/21/2016] [Indexed: 11/07/2022]
Abstract
Metal surface nanostructuring to guide cell behavior is an attractive strategy to improve parts of medical implants, lab-on-a-chip, soft robotics, self-assembled microdevices, and bionic devices. Here, we discus important parameters, relevant trends, and specific examples of metal surface nanostructuring to guide cell behavior on metal-based hybrid surfaces. Surface nanostructuring allows precise control of cell morphology, adhesion, internal organization, and function. Pre-organized metal nanostructuring and dynamic stimuli-responsive surfaces are used to study various cell behaviors. For cells dynamics control, the oscillating stimuli-responsive layer-by-layer (LbL) polyelectrolyte assemblies are discussed to control drug delivery, coating thickness, and stiffness. LbL films can be switched "on demand" to change their thickness, stiffness, and permeability in the dynamic real-time processes. Potential applications of metal-based hybrids in biotechnology and selected examples are discussed.
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Affiliation(s)
- Yulia Zhukova
- Biomaterials Department; Max Planck Institute of Colloids and Interfaces; Am Mühlenberg 1 Potsdam 14424 Germany
| | - Ekaterina V. Skorb
- Biomaterials Department; Max Planck Institute of Colloids and Interfaces; Am Mühlenberg 1 Potsdam 14424 Germany
- Laboratory of Solution Chemistry of Advanced Materials and Technologies (SCAMT); ITMO University; St. Petersburg 197101 Russian Federation
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22
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Peng E, Tsubaki A, Zuhlke CA, Wang M, Bell R, Lucis MJ, Anderson TP, Alexander DR, Gogos G, Shield JE. Micro/nanostructures formation by femtosecond laser surface processing on amorphous and polycrystalline Ni 60Nb 40. APPLIED SURFACE SCIENCE 2017; 396:1170-1176. [PMID: 30410203 PMCID: PMC6218947 DOI: 10.1016/j.apsusc.2016.11.107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Femtosecond laser surface processing is a technology that can be used to functionalize many surfaces, imparting specialized properties such as increased broadband optical absorption or superhydrophilicity/superhydrophobicity. In this study, two unique classes of surface structures, below surface growth (BSG) and above surface growth (ASG) mounds, were formed by femtosecond laser surface processing on amorphous and polycrystalline Ni60Nb40 with two different grain sizes. Cross sectional imaging of these mounds revealed thermal evidence of the unique formation processes for each class of surface structure. BSG mounds formed on all three substrates using the same laser parameters had similar surface morphology. The microstructures in the mounds were unaltered compared with the substrate before laser processing, suggesting their formation was dominated by preferential valley ablation. ASG mounds had similar morphology when formed on the polycrystalline Ni60Nb40 substrates with 100 nm and 2 [H9262]m grain size. However, the ASG mounds had significantly wider diameter and higher peak-to-valley heights when the substrate was amorphous Ni60Nb40. Hydrodynamic melting was primarily responsible for ASG mound formation. On amorphous Ni60Nb40 substrates, the ASG mounds are most likely larger due to lower thermal diffusivity. There was clear difference in growth mechanism of femtosecond laser processed BSG and ASG mounds, and grain size does not appear to be a factor.
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Affiliation(s)
- Edwin Peng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Alfred Tsubaki
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Craig A. Zuhlke
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Meiyu Wang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Ryan Bell
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Michael J. Lucis
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Troy P. Anderson
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Dennis R. Alexander
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - George Gogos
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jeffrey E. Shield
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
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23
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The effects of femtosecond laser-textured Ti-6Al-4V on wettability and cell response. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:311-20. [DOI: 10.1016/j.msec.2016.06.072] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 06/01/2016] [Accepted: 06/22/2016] [Indexed: 11/23/2022]
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24
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Peng E, Tsubaki A, Zuhlke CA, Wang M, Bell R, Lucis MJ, Anderson TP, Alexander DR, Gogos G, Shield JE. Experimental explanation of the formation mechanism of surface mound-structures by femtosecond laser on polycrystalline Ni 60Nb 40. APPLIED PHYSICS LETTERS 2016; 108:031602. [PMID: 30416199 PMCID: PMC6225069 DOI: 10.1063/1.4939983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Femtosecond laser surface processing (FLSP) is an emerging technique for creating functionalized surfaces with specialized properties, such as broadband optical absorption or superhydrophobicity/superhydrophilicity. It has been demonstrated in the past that FLSP can be used to form two distinct classes of mound-like, self-organized micro/nanostructures on the surfaces of various metals. Here, the formation mechanisms of below surface growth (BSG) and above surface growth (ASG) mounds on polycrystalline Ni60Nb40 are studied. Cross-sectional imaging of these mounds by focused ion beam milling and subsequent scanning electron microscopy revealed evidence of the unique formation processes for each class of microstructure. BSG-mound formation during FLSP did not alter the microstructure of the base material, indicating preferential valley ablation as the primary formation mechanism. For ASG-mounds, the microstructure at the peaks of the mounds was clearly different from the base material. Transmission electron microscopy revealed that hydrodynamic melting of the surface occurred during FLSP under ASG-mound forming conditions. Thus, there is a clear difference in the formation mechanisms of ASG- and BSG-mounds during FLSP.
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Affiliation(s)
- Edwin Peng
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Alfred Tsubaki
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Craig A Zuhlke
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Meiyu Wang
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Ryan Bell
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Michael J Lucis
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Troy P Anderson
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Dennis R Alexander
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - George Gogos
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
| | - Jeffrey E Shield
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588, USA
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Kim SY, Kang JH, Seo WS, Lee SW, Oh NS, Cho HK, Lee MH. Effect of topographical control by a micro-molding process on the activity of human Mesenchymal Stem Cells on alumina ceramics. Biomater Res 2015; 19:23. [PMID: 26543592 PMCID: PMC4634586 DOI: 10.1186/s40824-015-0045-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2015] [Accepted: 10/27/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Numerous studies have reported that microgrooves on metal and polymer materials can affect cell adhesion, proliferation, differentiation and guidance. However, our knowledge of the cell activity associated with microgrooves on ceramics, such as alumina, zirconia, hydroxyapatite and etc, is very incomplete, owing to difficulties in the engraving of microgrooves on the hard surface of the base material. In this study, microgrooves on alumina were fabricated by a casting process using a polydimethylsiloxane micro-mold. The cell responses of Human Mesenchymal Stem Cells on the alumina microgrooves were then evaluated. RESULTS Microgrooves on an alumina surface by micro-mold casting can enhance the adhesion, differentiation of osteoblasts as well as gene expression related to osteoblast differentiation. The ALP activity and calcium concentration of the cells on alumina microgrooves were increased by more than twice compared to a non-microgrooved alumina surface. Moreover, regarding the osteoblast differentiation of hMSCs, the expression of ALP, RUNX2, OSX, OC and OPN on the microgrooved alumina were all significantly increased by 1.5 ~ 2.5 fold compared with the non-microgrooved alumina. CONCLUSION Altering the topography on alumina by creating microgrooves using a micro-molding process has an important impact on the behavior of hMSCs, including the adhesion, differentiation of osteoblasts and osteoblast-specific gene expression. The significant increase in hMSC activity is explained by the increasing of material transportation in parallel direction and by the extending of spreading distance in perpendicular direction.
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Affiliation(s)
- Soo-Yean Kim
- Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology, 101, Soho-ro, Jinju-si, Gyeongsangnam-do 660-031 Republic of Korea ; Department of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon, 440-746 South Korea
| | - Jong-Ho Kang
- Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology, 101, Soho-ro, Jinju-si, Gyeongsangnam-do 660-031 Republic of Korea
| | - Won-Seon Seo
- Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology, 101, Soho-ro, Jinju-si, Gyeongsangnam-do 660-031 Republic of Korea
| | - Suk-Won Lee
- Department of Biomaterials & Prosthodontics, Kyung Hee University Hospital at Gangdong, Institute of Oral Biology, School of Dentistry, Kyung Hee University, 892 Dongnam-ro, Gangdong-gu, Seoul 134-727 Republic of Korea
| | - Nam-Sik Oh
- Department of Dentistry, College of Medicine, Inha University, 27 Inhang-ro, Jung-gu, Incheon 400-711 Republic of Korea
| | - Hyung-Koun Cho
- Department of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon, 440-746 South Korea
| | - Myung-Hyun Lee
- Energy & Environmental Division, Korea Institute of Ceramic Engineering & Technology, 101, Soho-ro, Jinju-si, Gyeongsangnam-do 660-031 Republic of Korea
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Hendrikson W, Masman-Bakker W, van Bochove B, Skolski J, Eichstädt J, Koopman B, van Blitterswijk C, Grijpma D, Römer GW, Moroni L, Rouwkema J. Mold-Based Application of Laser-Induced Periodic Surface Structures (LIPSS) on Biomaterials for Nanoscale Patterning. Macromol Biosci 2015; 16:43-9. [DOI: 10.1002/mabi.201500270] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 08/19/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Wim Hendrikson
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
| | - Wendy Masman-Bakker
- Department of Biomechanical Engineering, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
| | - Bas van Bochove
- Department of Biomaterials Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
| | - Johann Skolski
- Department of Applied Laser Technology, Faculty of Engineering Technology; University of Twente; Enschede 7500 AE The Netherlands
| | - Justus Eichstädt
- Department of Applied Laser Technology, Faculty of Engineering Technology; University of Twente; Enschede 7500 AE The Netherlands
| | - Bart Koopman
- Department of Biomechanical Engineering, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
| | - Clemens van Blitterswijk
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine; University of Maastricht; Maastricht 6229 ER The Netherlands
| | - Dirk Grijpma
- Department of Biomaterials Science and Technology, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
- Department of Biomedical Engineering; W. J. Kolff Institute, UMC Groningen; Groningen 9700 AN The Netherlands
| | - Gert-willem Römer
- Department of Applied Laser Technology, Faculty of Engineering Technology; University of Twente; Enschede 7500 AE The Netherlands
| | - Lorenzo Moroni
- Department of Tissue Regeneration, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine; University of Maastricht; Maastricht 6229 ER The Netherlands
| | - Jeroen Rouwkema
- Department of Biomechanical Engineering, MIRA Institute for Biomedical Technology and Technical Medicine; University of Twente; Enschede 7500 AE The Netherlands
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Guarnieri R, Belleggia F, Grande M. Immediate versus Delayed Treatment in the Anterior Maxilla Using Single Implants with a Laser-Microtextured Collar: 3-Year Results of a Case Series on Hard- and Soft-Tissue Response and Esthetics. J Prosthodont 2015; 25:135-45. [DOI: 10.1111/jopr.12295] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/24/2014] [Indexed: 11/26/2022] Open
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Wang G, Moya S, Lu Z, Gregurec D, Zreiqat H. Enhancing orthopedic implant bioactivity: refining the nanotopography. Nanomedicine (Lond) 2015; 10:1327-41. [DOI: 10.2217/nnm.14.216] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Advances in nanotechnology open up new possibilities to produce biomimetic surfaces that resemble the cell in vivo growth environment at a nanoscale level. Nanotopographical changes of biomaterials surfaces can positively impact the bioactivity and ossointegration properties of orthopedic and dental implants. This review introduces nanofabrication techniques currently used or those with high potential for use as surface modification of biomedical implants. The interactions of nanotopography with water, proteins and cells are also discussed, as they largely determine the final success of the implants. Due to the well-documented effects of surface chemistry and microtopography on the bioactivity of the implant, we here elaborate on the ability of the nanofabrication techniques to combine the dual (multi) modification of surface chemistry and/or microtopography.
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Affiliation(s)
- Guocheng Wang
- Soft Matter Nanotechnology Laboratory, CIC biomaGUNE, Paseo Miramón 182 C, 20009 Donostia-San Sebastian, Spain
- Research Center for Human Tissues & Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong 518055, China
| | - Sergio Moya
- Soft Matter Nanotechnology Laboratory, CIC biomaGUNE, Paseo Miramón 182 C, 20009 Donostia-San Sebastian, Spain
| | - ZuFu Lu
- Biomaterials & Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
| | - Danijela Gregurec
- Soft Matter Nanotechnology Laboratory, CIC biomaGUNE, Paseo Miramón 182 C, 20009 Donostia-San Sebastian, Spain
| | - Hala Zreiqat
- Biomaterials & Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
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29
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Lorenzetti M, Dakischew O, Trinkaus K, Lips KS, Schnettler R, Kobe S, Novak S. Enhanced osteogenesis on titanium implants by UVB photofunctionalization of hydrothermally grown TiO₂ coatings. J Biomater Appl 2015; 30:71-84. [PMID: 25633960 DOI: 10.1177/0885328215569091] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Even though Ti-based implants are the most used materials for hard tissue replacement, they may present lack of osseointegration on the long term, due to their inertness. Hydrothermal treatment (HT) is a useful technique for the synthesis of firmly attached, highly crystalline coatings made of anatase titanium dioxide (TiO2), providing favorable nanoroughness and higher exposed surface area, as well as greater hydrophilicity, compared to the native amorphous oxide on pristine titanium. The hydrophilicity drops even more by photofunctionalization of the nanostructured TiO2-anatase coatings under UV light. Human mesenchymal stem cells exhibited a good response to the combination of the positive surface characteristics, especially in respect to the UVB pre-irradiation. The results showed that the cells were not harmed in terms of viability; even more, they were encouraged to differentiate in osteoblasts and to become osteogenically active, as confirmed by the calcium ion uptake and the formation of well-mineralized, bone-like nodule structures. In addition, the enrichment of hydroxyl groups on the HT-surfaces by UVB photofunctionalization accelerated the cell differentiation process and greatly improved the osteogenesis in comparison with the nonirradiated samples. The optimal surface characteristics of the HT-anatase coatings as well as the high potentiality of the photo-induced hydrophilicity, which was reached during a relatively short pre-irradiation time (5 h) with UVB light, can be correlated with better osseointegration ability in vivo; among the samples, the superior biological behavior of the roughest and most hydrophilic HT coating makes it a good candidate for further studies and applications.
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Affiliation(s)
- Martina Lorenzetti
- Department of Nanostructured Materials, Jožef Stefan Institute, Ljubljana, Slovenia Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Olga Dakischew
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen, Germany
| | - Katja Trinkaus
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen, Germany
| | - Katrin Susanne Lips
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen, Germany
| | - Reinhard Schnettler
- Laboratory for Experimental Trauma Surgery, Justus-Liebig-University Giessen, Giessen, Germany Department of Trauma Surgery, University Hospital of Giessen and Marburg, Giessen, Germany
| | - Spomenka Kobe
- Department of Nanostructured Materials, Jožef Stefan Institute, Ljubljana, Slovenia Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
| | - Saša Novak
- Department of Nanostructured Materials, Jožef Stefan Institute, Ljubljana, Slovenia Jožef Stefan International Postgraduate School, Ljubljana, Slovenia
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30
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Kiefer K, Lee J, Haidar A, Miró MM, Akkan CK, Veith M, Aktas OC, Abdul-Khaliq H. Alignment of human cardiomyocytes on laser patterned biphasic core/shell nanowire assemblies. NANOTECHNOLOGY 2014; 25:495101. [PMID: 25407362 DOI: 10.1088/0957-4484/25/49/495101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The management of end stage heart failure patients is only possible by heart transplantation or by the implantation of artificial hearts as a bridge for later transplantation. However, these therapeutic strategies are limited by a lack of donor hearts and by the associated complications, such as coagulation and infection, due to the used artificial mechanical circulatory assist devices. Therefore, new strategies for myocardial regenerative approaches are under extensive research to produce contractile myocardial tissue in the future to replace non-contractile myocardial ischemic and scarred tissue. Different approaches, such as cell transplantation, have been studied intensively. Although successful approaches have been observed, there are still limitations to the application. It is envisaged that myocardial tissue engineering can be used to help replace infarcted non-contractile tissue. The developed tissue should later mimic the aligned fibrillar structure of the extracellular matrix and provide important guidance cues for the survival, function and the needed orientation of cardiomyocytes. Nanostructured surfaces have been tested to provide a guided direction that cells can follow. In the present study, the cellular adhesion/alignment of human cardiomyocytes and the biocompatibility have been investigated after cultivation on different laser-patterned nanowires compared with unmodified nanowires. As a result, the nanostructured surfaces possessed good biocompatibility before and after laser modification. The laser-induced scalability of the pattern enabled the growth and orientation of the adhered myocardial tissue. Such approaches may be used to modify the surface of potential scaffolds to develop myocardial contractile tissue in the future.
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Affiliation(s)
- Karin Kiefer
- Clinic for Paediatric Cardiology, Saarland University, Building 9, 66421 Homburg, Germany.
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Zuhlke CA, Anderson TP, Alexander DR. Formation of multiscale surface structures on nickel via above surface growth and below surface growth mechanisms using femtosecond laser pulses. OPTICS EXPRESS 2013; 21:8460-8473. [PMID: 23571936 DOI: 10.1364/oe.21.008460] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The formation of self-organized micro- and nano-structured surfaces on nickel via both above surface growth (ASG) and below surface growth (BSG) mechanisms using femtosecond laser pulse illumination is reported. Detailed stepped growth experiments demonstrate that conical mound-shaped surface structure development is characterized by a balance of growth mechanisms including scattering from surface structures and geometric effects causing preferential ablation of the valleys, flow of the surface melt, and redeposition of ablated material; all of which are influenced by the laser fluence and the number of laser shots on the sample. BSG-mound formation is dominated by scattering, while ASG-mound formation is dominated by material flow and redeposition. This is the first demonstration to our knowledge of the use of femtosecond laser pulses to fabricate metallic surface structures that rise above the original surface. These results are useful in understanding the details of multi-pulse femtosecond laser interaction with metals.
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Affiliation(s)
- Craig A Zuhlke
- Department of Electrical Engineering, University of Nebraska – Lincoln, 209N Scott Engineering Center, Lincoln, NE 68588, USA.
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32
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Nadeem D, Sjostrom T, Wilkinson A, Smith CA, Oreffo ROC, Dalby MJ, Su B. Embossing of micropatterned ceramics and their cellular response. J Biomed Mater Res A 2013; 101:3247-55. [PMID: 23554267 DOI: 10.1002/jbm.a.34622] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/18/2012] [Accepted: 01/22/2013] [Indexed: 12/22/2022]
Abstract
The aim of this work is to investigate the use of microtopographies in providing physical cues to modulate the cellular response of human mesenchymal stem cells on ceramics. Two microgrooved patterns (100 μm/50 μm, 10 μm/10 μm groove/pitch) were transcribed reversely onto alumina green ceramic tapes via an embossing technique followed by sintering. Characterization of the micropatterned alumina surfaces and their cellular response was carried out. Spread and polygonal cell morphologies were observed on the wider groove (50 μm/100 μm) surface. Cells seeded onto the narrow groove (10 μm/10 μm) surface aligned themselves alongside the grooves, resulting in more elongated cell morphology. More osteoid matrix nodules shown by osteopontin and osteocalcin biomarkers were detected on the larger grooved surfaces after cell culture of 21 days, indicating a greater level of osteogenicity. This study has shown that micropatterned wider groove (50 μm) topographies are more suitable surfaces for improving osseointegration of ceramic implants.
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Affiliation(s)
- Danish Nadeem
- School of Oral and Dental Sciences, University of Bristol, Bristol, BS1 2LY, United Kingdom
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