1
|
Say Y. Synthesis and characterization of TiNbZrMo medium-entropy bio-composites: Microstructure, mechanical properties, and in vitro degradation. J Biomed Mater Res B Appl Biomater 2024; 112:e35415. [PMID: 38773744 DOI: 10.1002/jbm.b.35415] [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: 11/06/2023] [Revised: 04/01/2024] [Accepted: 04/26/2024] [Indexed: 05/24/2024]
Abstract
This study reports the synthesis and characterization of hydroxyapatite (HA)-based bio-composites reinforced with varying amounts (by weight, 1-15 wt.%) of bio-medium entropy alloy (BioMEA) for load-bearing implant applications. BioMEA powders consisting of Ti, Nb, Zr, and Mo were mechanically alloyed for 100 h and subsequently added to HA using powder metallurgy techniques. To show the effect of BioMEA, the microstructure, density, and mechanical tests have been conducted and the synthesized BioMEA was characterized by scanning electron microscope (SEM), x-ray diffractometer (XRD), and Fourier-transform infrared spectroscopy (FTIR) analysis. In addition, in vitro degradation behavior and bioactivity analyses of bio-composites have been conducted. XRD analysis revealed the formation of BioMEA after 20 h of mechanical alloying. The highest density value of 2.47 g/cm3 was found in 15 wt.% BioMEA-reinforced bio-composite. The addition of BioMEA reinforcement led to a significant increase in hardness and tensile strength values, with the highest values observed at 15 wt.% reinforcement. Compression tests demonstrated a significant increase in compressive strength and deformation capability of the bio-composites with the highest values observed at 15 wt.% BioMEA addition. The highest toughness of 7.68 kJ/m2 was measured in 10 wt.% MEA-reinforced bio-composites. The produced bio-composite materials have an elastic modulus between 3.5-5.5 GPa, which may provide a solution to the stress shielding problems caused by the high elastic modulus of metallic implant materials. The most severe degradation occurred in 15 wt.% MEA-reinforced bio-composites, and the effect of degradation caused a decrease in Ca and an increase in Ti-Ni-Zr-Mo in all bio-composites. These findings suggest that HA/BioMEA bio-composites have the potential to be developed as advanced biomaterials with moderate mechanical and biological properties for load-bearing implant applications.
Collapse
Affiliation(s)
- Yakup Say
- Department of Machine and Metallic Technology, Munzur University, Tunceli, Turkey
| |
Collapse
|
2
|
Garg A, Alfatease A, Hani U, Haider N, Akbar MJ, Talath S, Angolkar M, Paramshetti S, Osmani RAM, Gundawar R. Drug eluting protein and polysaccharides-based biofunctionalized fabric textiles- pioneering a new frontier in tissue engineering: An extensive review. Int J Biol Macromol 2024; 268:131605. [PMID: 38641284 DOI: 10.1016/j.ijbiomac.2024.131605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 03/20/2024] [Accepted: 04/12/2024] [Indexed: 04/21/2024]
Abstract
In the ever-evolving landscape of tissue engineering, medicated biotextiles have emerged as a game-changer. These remarkable textiles have garnered significant attention for their ability to craft tissue scaffolds that closely mimic the properties of natural tissues. This comprehensive review delves into the realm of medicated protein and polysaccharide-based biotextiles, exploring a diverse array of fabric materials. We unravel the intricate web of fabrication methods, ranging from weft/warp knitting to plain/stain weaving and braiding, each lending its unique touch to the world of biotextiles creation. Fibre production techniques, such as melt spinning, wet/gel spinning, and multicomponent spinning, are demystified to shed light on the magic behind these ground-breaking textiles. The biotextiles thus crafted exhibit exceptional physical and chemical properties that hold immense promise in the field of tissue engineering (TE). Our review underscores the myriad applications of drug-eluting protein and polysaccharide-based textiles, including TE, tissue repair, regeneration, and wound healing. Additionally, we delve into commercially available products that harness the potential of medicated biotextiles, paving the way for a brighter future in healthcare and regenerative medicine. Step into the world of innovation with medicated biotextiles-where science meets the art of healing.
Collapse
Affiliation(s)
- Ankitha Garg
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India
| | - Adel Alfatease
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia.
| | - Umme Hani
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 61421, Saudi Arabia.
| | - Nazima Haider
- Department of Pathology, College of Medicine, King Khalid University, Abha 61421, Saudi Arabia
| | - Mohammad J Akbar
- Department of Pharmaceutics, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam 34212, Saudi Arabia.
| | - Sirajunisa Talath
- Department of Pharmaceutical Chemistry, RAK College of Pharmacy, RAK Medical and Health Sciences University, Ras Al Khaimah 11172, United Arab Emirates.
| | - Mohit Angolkar
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India
| | - Sharanya Paramshetti
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India
| | - Riyaz Ali M Osmani
- Department of Pharmaceutics, JSS College of Pharmacy, JSS Academy of Higher Education and Research (JSSAHER), Mysuru 570015, Karnataka, India.
| | - Ravi Gundawar
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India.
| |
Collapse
|
3
|
Integration of collagen fibers in connective tissue with dental implant in the transmucosal region. Int J Biol Macromol 2022; 208:833-843. [PMID: 35367473 DOI: 10.1016/j.ijbiomac.2022.03.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 12/26/2022]
Abstract
Dental implants have been widely accepted as an ideal therapy to replace the missing teeth for its good performance in aspects of mechanical properties and aesthetic outcomes. Its restorative success is contributed by not only the successful osseointegration of the implant but also the tight soft tissue integration, especially the collagen fibers, in the transmucosal region. Soft tissue attaching to the dental implant/abutment is overall similar, but in some aspects distinct with that seen around natural teeth and soft tissue integration can be enhanced via several surface modification methods. This review is going to focus on the current knowledge of the transmucosal zone around the dental implants (compared with natural teeth), and latest strategies in use to fine-tune the collagen fibers assembly in the connective tissue, in an attempt to enhance soft tissue integration.
Collapse
|
4
|
Kaliaraj GS, Siva T, Ramadoss A. Surface functionalized bioceramics coated on metallic implants for biomedical and anticorrosion performance - a review. J Mater Chem B 2021; 9:9433-9460. [PMID: 34755756 DOI: 10.1039/d1tb01301g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In modern days, the usage of trauma fixation devices has significantly increased due to sports injury, age-related issues, accidents, and revision surgery purposes. Numerous materials such as stainless steel, titanium, Co-Cr alloy, polymers, and ceramics have been used to replace the missing or defective parts of the human body. After implantation, body fluids (Na+, K+, and Cl-), protein, and blood cells interact with the surface of metallic implants, which favours the release of ions from the metallic surface to surrounding body tissues, leading to a hypersensitive reaction. Body pH, temperature, and interaction of immune cells also cause metal ion leaching and lose host cell interaction and effective mineralization for better durability. Moreover, microbial invasion is another important crisis, which produces extracellular compounds onto the biomaterial surface through which it escapes from the antimicrobial agents. To enhance the performance of materials by improving mechanical, corrosion resistance, antimicrobial, and biocompatibility properties, surface modification is a prerequisite method in which chemical vapour deposition (CVD), physical vapour deposition (PVD), sol-gel method, and electrochemical deposition are generally involved. The properties of bioceramics such as chemical inertness, bioactivity, biocompatibility, and corrosion protection make them most suitable for the surface functionalization of metallic implants. To the best of our knowledge, very limited literature is available to discuss the interaction of body proteins, pH, and temperature onto bioceramic coatings. Hence, the present review focuses on the corrosion behaviour of different ceramic composite coating materials with different conditions. This review initially briefs the properties and surface chemistry of metal implants and the need for surface modifications by different deposition techniques. Further, mechanical, cytotoxicity, antimicrobial property, and electrochemical behaviour of ceramics and metal nitride coatings are discussed. Finally, future perspectives of coatings are outlined for biomedical applications.
Collapse
Affiliation(s)
- Gobi Saravanan Kaliaraj
- Centre for Nanoscience and Nanotechnology, Sathyabama Institute of Science and Technology, Chennai 600119, India.
| | - T Siva
- School for Advanced Research in Petrochemicals, Laboratory for Advanced Research in Polymeric Materials, Central Institute of Petrochemicals Engineering & Technology, Bhubaneswar 751024, India.
| | - Ananthakumar Ramadoss
- School for Advanced Research in Petrochemicals, Laboratory for Advanced Research in Polymeric Materials, Central Institute of Petrochemicals Engineering & Technology, Bhubaneswar 751024, India.
| |
Collapse
|
5
|
Bagherifard S, Naderi Beni R, Kajanek D, Donnini R, Monti S, Molla MF, Hadzima B, Guagliano M. Inclined and multi-directional surface impacts accelerate biodegradation and improve mechanical properties of pure iron. J Mech Behav Biomed Mater 2021; 119:104476. [PMID: 33838446 DOI: 10.1016/j.jmbbm.2021.104476] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/17/2020] [Accepted: 03/15/2021] [Indexed: 10/21/2022]
Abstract
Impact based surface treatments with adequate kinetic energy have favorable effects on promoting cell-substrate interactions, reducing bacterial adhesion, and enhancing fatigue performance of metallic biomaterials. Here, we used both numerical and experimental approaches to evaluate the potential of these treatments for addressing the major issue associated with the application of pure iron in biomedical implants, i.e. its low corrosion rate. Despite the efficiency of impact based surface treatments in modulating the degradation rate of pure iron, the maximum reported depth of the affected surface layer is still limited, even when extreme process parameters are used. To address this issue, herein, two impact based treatments were adjusted to trigger the dislocation activities that facilitate grain refinement in pure iron using multi-directional inclined impacts. An alternative approach of severe shot peening (SSP) was developed and compared with ultrasonic shot peening (USP). The effect of both treatments and variations of their key parameters were analyzed considering the significant role of shear bands and dislocation cells in the grain refinement mechanism of pure α-iron. Microstructural, mechanical and electrochemical properties of the treated material were analyzed. The observations showed extension of the grain refined layers for the specimens subjected to multidirectional oblique impacts compared to the ones treated in the classic manner using normal impacts. The results imply that by adapting peening parameters, it would be possible to effectively create a thick surface layer with properties that can accelerate the biodegradation of pure iron boosting its potential to meet clinical requirements for temporary hard tissue implants.
Collapse
Affiliation(s)
- Sara Bagherifard
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy.
| | - Rasool Naderi Beni
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy
| | | | - Riccardo Donnini
- ICMATE Institute, National Research Council of Italy (CNR), Milan, Italy
| | - Stefano Monti
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy
| | | | | | - Mario Guagliano
- Department of Mechanical Engineering, Politecnico di Milano, Milan, Italy
| |
Collapse
|
6
|
The Effects of Chemical Etching and Ultra-Fine Grain Structure of Titanium on MG-63 Cells Response. METALS 2021. [DOI: 10.3390/met11030510] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, we study the influence of the surface properties of ultrafine grained (UFG) and coarse grained (CG) titanium on the morphology, viability, proliferation and differentiation of osteoblast-like MG-63 cells. Wet chemical etching in H2SO4/H2O2 and NH4OH/H2O2 solutions was used for producing surfaces with varying morphology, topography, composition and wettability. The topography and morphology have been studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM). The composition was determined by time of flight mass-spectrometry (TOF-SIMS) and X-ray photoelectron spectroscopy (XPS). The results showed that it is possible to obtain samples with different compositions, hydrophilicity, topography and nanoscale or/and microscale structures by changing the etching time and the type of etching solution. It was found that developed topography and morphology can improve spreading and proliferation rate of MG-63 cells. A significant advantage of the samples of the UFG series in comparison with CG in adhesion, proliferation at later stages of cultivation (7 days), higher alkaline phosphatase (ALP) activity and faster achievement of its maximum values was found. However, there is no clear benefit of the UFG series on osteopontin (OPN) expression. All studied samples showed no cytotoxicity towards MG-63 cells and promoted their osteogenic differentiation.
Collapse
|
7
|
Biological Applications of Severely Plastically Deformed Nano-Grained Medical Devices: A Review. NANOMATERIALS 2021; 11:nano11030748. [PMID: 33809711 PMCID: PMC8002278 DOI: 10.3390/nano11030748] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 11/30/2022]
Abstract
Metallic materials are widely used for fabricating medical implants due to their high specific strength, biocompatibility, good corrosion properties, and fatigue resistance. Recently, titanium (Ti) and its alloys, as well as stainless steel (SS), have attracted attention from researchers because of their biocompatibility properties within the human body; however, improvements in mechanical properties while keeping other beneficial properties unchanged are still required. Severe plastic deformation (SPD) is a unique process for fabricating an ultra-fine-grained (UFG) metal with micrometer- to nanometer-level grain structures. SPD methods can substantially refine grain size and represent a promising strategy for improving biological functionality and mechanical properties. This present review paper provides an overview of different SPD techniques developed to create nano-/ultra-fine-grain-structured Ti and stainless steel for improved biomedical implant applications. Furthermore, studies will be covered that have used SPD techniques to improve bone cell proliferation and function while decreasing bacterial colonization when cultured on such nano-grained metals (without resorting to antibiotic use).
Collapse
|
8
|
Acharya S, Suwas S, Chatterjee K. Review of recent developments in surface nanocrystallization of metallic biomaterials. NANOSCALE 2021; 13:2286-2301. [PMID: 33481967 DOI: 10.1039/d0nr07566c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metallic materials are widely used to prepare implants for both short-term and long-term use in the human body. The performance of these implants is greatly influenced by their surface characteristics, which has motivated the development of several surface modification techniques. Surface severe plastic deformation (S2PD) techniques have emerged as promising strategies to enhance the performance of metallic biomaterials. They do not involve chemical modification of the surface and impart minimal changes to the surface topography. S2PD processes are based on the principle of generating nanocrystals at the surface, which can improve performance metrics, such as fatigue, wear, corrosion resistance, and biocompatibility through various mechanisms, such as surface hardening and alterations to the surface oxide layer. This review presents the state of the art on the development of different S2PD processes and their applications on metallic biomaterials. Brief descriptions of the different processes have been provided, followed by a discussion on the microstructural changes induced by these processes for different generations of biomaterials. The effect of S2PD on surface and bulk characteristics of the biomaterials and their performance is critically reviewed. As an emerging class of surface engineering techniques in biomaterials science, more work is needed to fully leverage their potential in this field, and these opportunities are discussed in this review.
Collapse
Affiliation(s)
- Srijan Acharya
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012 India.
| | - Satyam Suwas
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012 India.
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore, 560012 India.
| |
Collapse
|
9
|
Wojtas D, Mzyk A, Kawałko J, Imbir G, Trembecka-Wójciga K, Marzec M, Jarzębska A, Maj Ł, Wierzbanowski K, Chulist R, Pachla W, Sztwiertnia K. Texture-Governed Cell Response to Severely Deformed Titanium. ACS Biomater Sci Eng 2021; 7:114-121. [PMID: 33347752 DOI: 10.1021/acsbiomaterials.0c01034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The phenomenon of superior biological behavior observed in titanium processed by an unconventional severe plastic deformation method, that is, hydrostatic extrusion, has been described within the present study. In doing so, specimens varying significantly in the crystallographic orientation of grains, yet exhibiting comparable grain refinement, were meticulously investigated. The aim was to find the clear origin of enhanced biocompatibility of titanium-based materials, having microstructures scaled down to the submicron range. Texture, microstructure, and surface characteristics, that is, wettability, roughness, and chemical composition, were examined as well as protein adsorption tests and cell response studies were carried out. It has been concluded that, irrespective of surface properties and mean grain size, the (101̅0) crystallographic plane favors endothelial cell attachment on the surface of the severely deformed titanium. Interestingly, an enhanced albumin, fibronectin, and serum adsorption as well as clearly directional growth of the cells with preferentially oriented cell nuclei have been observed on the surfaces having (0001) planes exposed predominantly. Overall, the biological response of titanium fabricated by severe plastic deformation techniques is derived from the synergistic effect of surface irregularities, being the effect of refined microstructures, surface chemistry, and crystallographic orientation of grains rather than grain refinement itself.
Collapse
Affiliation(s)
- Daniel Wojtas
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Reymonta 19, Kraków 30-059, Poland.,Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Aldona Mzyk
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland.,Department of Biomedical Engineering, Groningen University, University Medical Center Groningen, Antonius Deusinglaan 1, Groningen 9700 RB, The Netherlands
| | - Jakub Kawałko
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, Kraków 30-059, Poland
| | - Gabriela Imbir
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Klaudia Trembecka-Wójciga
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Mateusz Marzec
- Academic Centre for Materials and Nanotechnology, AGH University of Science and Technology, Mickiewicza 30, Kraków 30-059, Poland
| | - Anna Jarzębska
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Łukasz Maj
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Krzysztof Wierzbanowski
- Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Reymonta 19, Kraków 30-059, Poland
| | - Robert Chulist
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| | - Wacek Pachla
- Institute of High Pressure Physics (Unipress), Polish Academy of Sciences, Sokołowska 29/37, Warszawa 01-142, Poland
| | - Krzysztof Sztwiertnia
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, Kraków 30-059, Poland
| |
Collapse
|
10
|
Li Y, Jahr H, Zhou J, Zadpoor AA. Additively manufactured biodegradable porous metals. Acta Biomater 2020; 115:29-50. [PMID: 32853809 DOI: 10.1016/j.actbio.2020.08.018] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/27/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022]
Abstract
Partially due to the unavailability of ideal bone substitutes, the treatment of large bony defects remains one of the most important challenges of orthopedic surgery. Additively manufactured (AM) biodegradable porous metals that have emerged since 2018 provide unprecedented opportunities for fulfilling the requirements of an ideal bone implant. First, the multi-scale geometry of these implants can be customized to mimic the human bone in terms of both micro-architecture and mechanical properties. Second, a porous structure with interconnected pores possesses a large surface area, which is favorable for the adhesion and proliferation of cells and, thus, bony ingrowth. Finally, the freeform geometrical design of such biomaterials could be exploited to adjust their biodegradation behavior so as to maintain the structural integrity of the implant during the healing process while ensuring that the implant disappears afterwards, paving the way for full bone regeneration. While the AM biodegradable porous metals that have been studied so far have shown many unique properties as compared to their solid counterparts, the unprecedented degree of flexibility in their geometrical design has not yet been fully exploited to optimize their properties and performance. In order to develop the ideal bone implants, it is important to take advantage of the full potential of AM biodegradable porous metals through detailed and systematic study on their biodegradation behavior, mechanical properties, biocompatibility, and bone regeneration performance. This review paper presents the state of the art in AM biodegradable porous metals and is focused on the effects of material type, processing, geometrical design, and post-AM treatments on the mechanical properties, biodegradation behavior, in vitro biocompatibility, and in vivo bone regeneration performance of AM porous Mg, Fe, and Zn as well as their alloys. We also identify a number of knowledge gaps and the challenges encountered in adopting AM biodegradable porous metals for orthopedic applications and suggest some promising areas for future research.
Collapse
Affiliation(s)
- Yageng Li
- Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, Netherlands.
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH Aachen, Aachen 52074, Germany; Department of Orthopedic Surgery, Maastricht UMC+, Maastricht 6202 AZ, Netherlands
| | - Jie Zhou
- Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, Netherlands
| | - Amir Abbas Zadpoor
- Department of Biomechanical Engineering, Delft University of Technology, Delft 2628 CD, Netherlands
| |
Collapse
|
11
|
Reiss RA, Lowe TC, Sena JA, Makhnin O, Connick MC, Illescas PE, Davis CF. Bio-activating ultrafine grain titanium: RNA sequencing reveals enhanced mechano-activation of osteoconduction on nanostructured substrates. PLoS One 2020; 15:e0237463. [PMID: 32970688 PMCID: PMC7514099 DOI: 10.1371/journal.pone.0237463] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/27/2020] [Indexed: 02/02/2023] Open
Abstract
Titanium is essentially absent from biological systems yet reliably integrates into bone. To achieve osseointegration, titanium must activate biological processes without entering cells, defining it as a bio-activating material. Nanostructuring bulk titanium reduces grain size, increases strength, and improves other quantifiable physical properties, including cytocompatibility. The biological processes activated by increasing grain boundary availability were detected with total RNA-sequencing in mouse pre-osteoblasts grown for 72 hours on nanometrically smooth substrates of either coarse grain or nanostructured ultrafine grain titanium. The average grain boundary length under cells on the conventional coarse grain substrates is 273.0 μm, compared to 70,881.5 μm for cells adhered to the nanostructured ultrafine grain substrates; a 260-fold difference. Cells on both substrates exhibit similar expression profiles for genes whose products are critical for mechanosensation and transduction of cues that trigger osteoconduction. Biological process Gene Ontology term enrichment analysis of differentially expressed genes reveals that cell cycle, chromatin modification, telomere maintenance, and RNA metabolism processes are upregulated on ultrafine grain titanium. Processes related to immune response, including apoptosis, are downregulated. Tumor-suppressor genes are upregulated while tumor-promoting genes are downregulated. Upregulation of genes involved in chromatin remodeling and downregulation of genes under the control of the peripheral circadian clock implicate both processes in the transduction of mechanosensory information. Non-coding RNAs may also play a role in the response. Merging transcriptomics with well-established mechanobiology principles generates a unified model to explain the bio-activating properties of titanium. The modulation of processes is accomplished through chromatin remodeling in which the nucleus responds like a rheostat to grain boundary concentration. This convergence of biological and materials science reveals a pathway toward understanding the biotic-abiotic interface and will inform the development of effective bio-activating and bio-inactivating materials.
Collapse
Affiliation(s)
- Rebecca A. Reiss
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, New Mexico, United States of America
| | - Terry C. Lowe
- George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, Colorado, United States of America
| | - Johnny A. Sena
- National Center for Genome Resources, Santa Fe, New Mexico, United States of America
| | - Oleg Makhnin
- Mathematics Department, New Mexico Institute of Mining and Technology, Socorro, New Mexico, United States of America
| | - Melanie C. Connick
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, New Mexico, United States of America
| | - Patrick E. Illescas
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, New Mexico, United States of America
| | - Casey F. Davis
- George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, Colorado, United States of America
| |
Collapse
|
12
|
Challa V, Nune K, Gong N, Misra R. The significant impact of mechanically-induced phase transformation on cellular functionality of biomedical austenitic stainless steel. J Mech Behav Biomed Mater 2020; 108:103815. [DOI: 10.1016/j.jmbbm.2020.103815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 04/12/2020] [Accepted: 04/20/2020] [Indexed: 01/08/2023]
|
13
|
Perumal G, Grewal HS, Arora HS. Enhanced durability, bio-activity and corrosion resistance of stainless steel through severe surface deformation. Colloids Surf B Biointerfaces 2020; 194:111197. [PMID: 32569888 DOI: 10.1016/j.colsurfb.2020.111197] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 06/11/2020] [Accepted: 06/13/2020] [Indexed: 11/27/2022]
Abstract
Owing to its good biocompatibility and low cost, stainless steel is one of the most widely utilized biomaterial. However, longtime assessment of stainless steel has shown problems related to material degradation, especially localized corrosion and bio-film formation. In addition, the leaching of toxic nickel and chromium ions from stainless steel leads to additional health complications. Here, we utilized submerged friction stir processing, a severe surface deformation technique for significantly enhancing its durability, bio-activity as well as antibacterial resistance. The processing was done with a wide variation in strain rates to produce tunable surface microstructure. High strain-rate processing resulted in nearly single-phase fine-grained microstructure, while slow strain-rate processing developed a dual-phase fine-grained microstructure. The bio-corrosion rate of processed steel was reduced by more than 60 % along with significant enhancement in the pitting resistance. The processed steel showed nearly no bacterial adhesion/biofilm formation, evaluated using S. aureus and E. coli bacterial strains. Further, the processed stainless steel surface demonstrated minimum leaching of the toxic elements, significantly enhancing its appeal for bio-implant applications. The observed behavior was explained based on the formation of a stable passive layer, rich in Cr2O3, as determined using x-ray photoelectron microscopy (XPS) and increased hydrophilicity.
Collapse
Affiliation(s)
- G Perumal
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh, 201314, India
| | - H S Grewal
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh, 201314, India
| | - H S Arora
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Uttar Pradesh, 201314, India.
| |
Collapse
|
14
|
Xu Y, Liu W, Zhang G, Li Z, Hu H, Wang C, Zeng X, Zhao S, Zhang Y, Ren T. Friction stability and cellular behaviors on laser textured Ti-6Al-4V alloy implants with bioinspired micro-overlapping structures. J Mech Behav Biomed Mater 2020; 109:103823. [PMID: 32543395 DOI: 10.1016/j.jmbbm.2020.103823] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 02/11/2020] [Accepted: 04/20/2020] [Indexed: 11/30/2022]
Abstract
The grain structure and surface morphology of bio-implants act as a pivotal part in altering cell behavior. Titanium alloy bone screws, as common implants, are prone to screws loosening and complications threat in the physiological environment due to their inferior anti-wear and surface inertia. Manufacturing bone screws with high wear resistance and ideal biocompatibility has always been a challenge. In this study, a series of overlapping morphologies inspired by the hierarchical structure of fish scales and micro bulges of shrimp were structured on Ti-6Al-4V implant by laser texturing. The results indicate that the textured patterns could improve cell attachment, proliferation, and osteogenic differentiation. The short-term response of human bone marrow-derived mesenchymal stem cells (hBMSCs) on the textured surface are more sensitive to the microstructure than the surface roughness, wettability, grain size and surface chemical elements of the textured surfaces. More importantly, the friction-increasing and friction-reducing type overlapping structures exhibit excellent friction stability at different stages of modified simulated body fluid (m-SBF) soaking. The overlapping structure (Micro-smooth stacked ring: MSSR) is more beneficial to promote the formation of apatite. Deposited spherical-like apatite particles can act as a "lubricant" on the MSSR surface during the friction process to alleviate the adhesion wear of the surface. Meanwhile, apatite particles participate in the formation of friction film, which plays an effective role in reducing friction and antiwear in corrosion solution (m-SBF) for a long time. These features show that the combination of soaking treatment in m-SBF solution with laser-textured MSSR structure is expected to be an efficient and environmentally friendly strategy to prolong the service life of bone screws and reducing the complications of mildly osteoporotic implants.
Collapse
Affiliation(s)
- Yong Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wei Liu
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China
| | - Gangqiang Zhang
- College of Textile & Clothing, Institute of Functional Textiles and Advanced Materials, State Key Laboratory of Bio-Fibers and Eco-Textiles, Collaborative Innovation Center of Marine Biomass Fibers Materials and Textiles of Shandong Province, Qingdao University, Qingdao, 266071, China
| | - Zhipeng Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hongxing Hu
- Department of Orthopedic Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Chenchen Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiangqiong Zeng
- Advanced Lubricating Materials Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201404, China
| | - Shichang Zhao
- Department of Orthopedic Surgery, Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, 200233, China.
| | - Yadong Zhang
- Department of Orthopedics, Shanghai Fengxian Central Hospital, South Campus of Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 201400, China.
| | - Tianhui Ren
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China.
| |
Collapse
|
15
|
Lowe TC, Reiss RA, Illescas PE, Davis CF, Connick MC, Sena JA. Effect of surface grain boundary density on preosteoblast proliferation on titanium. MATERIALS RESEARCH LETTERS 2020; 8:239-246. [PMID: 32477832 PMCID: PMC7258310 DOI: 10.1080/21663831.2020.1744758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Indexed: 06/11/2023]
Abstract
Studies since 2004 have shown that the cytocompatibility of ultrafine grain (UG) commercial purity (CP) titanium exceeds that of coarse grain (CG) CP titanium (Ti) by 30% to 20-fold. To isolate the factors affecting this large reported variability of CP titanium's cytocompatibility, discs of UG and CG titanium were fabricated with controlled texture and roughness. The discs were seeded with MC3T3-E1 pre-osteoblastic cells and cultured for 72 h. The proliferation of cells on polished UG-Ti exceeded unpolished CG-Ti 3.04-fold. Cell proliferation was found to correlate with a new biophysical parameter, the average grain boundary length per surface-attached cell.
Collapse
Affiliation(s)
- Terry C. Lowe
- George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA
| | - Rebecca A. Reiss
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, NM, USA
| | - Patrick E. Illescas
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, NM, USA
| | - Casey F. Davis
- George S. Ansell Department of Metallurgical and Materials Engineering, Colorado School of Mines, Golden, CO, USA
| | - Melanie C. Connick
- Biology Department, New Mexico Institution of Mining and Technology, Socorro, NM, USA
| | | |
Collapse
|
16
|
Enhanced interfacial adhesion and osseointegration of anodic TiO 2 nanotube arrays on ultra-fine-grained titanium and underlying mechanisms. Acta Biomater 2020; 106:360-375. [PMID: 32058083 DOI: 10.1016/j.actbio.2020.02.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 01/20/2020] [Accepted: 02/06/2020] [Indexed: 12/23/2022]
Abstract
The poor adhesion of anodic TiO2 nanotubes (TNTs) arrays on titanium (Ti) substrates adversely affects applications in many fields especially biomedical engineering. Herein, an efficient strategy is described to improve the adhesion strength of TNTs by performing grain refinement in the underlying Ti substrate via high-pressure torsion processing, as a larger number of grain boundaries can provide more interfacial mechanical anchorage. This process also improves the biocompatibility and osseointegration of TNTs by increasing the surface elastic modulus. The TNTs in length of 0.4 µm have significantly larger adhesion strength than the 2.0 µm long ones because the shorter TNTs experience less interfacial internal stress. However, post-anodization annealing reduces the fluorine concentration in TNTs and adhesion strength due to the formation of interfacial cavities during crystallization. The interfacial structure of TNTs/Ti system and the mechanism of adhesion failures are further investigated and discussed. STATEMENT OF SIGNIFICANCE: Self-assembled TiO2 nanotubes (TNTs) prepared by electrochemical anodization have a distinct morphology and superior properties, which are commonly used in photocatalytic systems, electronic devices, solar cells, sensors, as well as biomedical implants. However, the poor adhesion between the TNTs and Ti substrate has hampered wider applications. Here in this study, we describe an efficient strategy to improve the adhesion strength of TNTs by performing grain refinement in the underlying Ti substrate via high-pressure torsion (HPT) processing. The interfacial structure of TNTs/Ti system and the mechanism of adhesion failure are systematically studied and discussed. Our findings not only develop the knowledge of TNTs/Ti system, but also provide new insights into the design of Ti-based implants for orthopedic applications.
Collapse
|
17
|
Perumal G, Grewal HS, Pole M, Reddy LVK, Mukherjee S, Singh H, Manivasagam G, Arora HS. Enhanced Biocorrosion Resistance and Cellular Response of a Dual-Phase High Entropy Alloy through Reduced Elemental Heterogeneity. ACS APPLIED BIO MATERIALS 2020; 3:1233-1244. [PMID: 35019324 DOI: 10.1021/acsabm.9b01127] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The leaching out of toxic elements from metallic bioimplants has serious repercussions, including allergies, peripheral neuritis, cancer, and Alzheimer's disease, leading to revision or replacement surgeries. The development of advanced structural materials with excellent biocompatibility and superior corrosion resistance in the physiological environment holds great significance. High entropy alloys (HEAs) with a huge compositional design space and outstanding mechanical and functional properties can be promising for bioimplant applications. However, microstructural heterogeneity arising from elemental segregation in these multiprinciple alloy systems is the Achilles heel in the development of next-generation HEAs. Here, we demonstrate a pathway to homogenize the microstructure of a biocompatible dual-phase HEA, comprising refractory elements, namely, MoNbTaTiZr, through severe surface deformation using stationary friction processing (SFP). The strain and temperature field during processing homogenized the elemental distribution, which was otherwise unresponsive to conventional annealing treatments. Nearly 15 min of the SFP treatment resulted in a significant elemental homogenization across dendritic and interdendritic regions, similar to a week-long annealing treatment at 1275 K. The SFP processed alloy showed a nearly six times higher biocorrosion resistance compared to its as-cast counterpart. X-ray photoelectron spectroscopy was used to investigate the nature of the oxide layer formed on the specimens. Superior corrosion behavior of the processed alloy was attributed to the formation of a stable passive layer with zirconium oxide as the primary constituent and higher hydrophobicity. Biocompatibility studies performed using the human mesenchymal stem cell line, showed higher viability for the processed HEA compared to its as-cast counterpart as well as conventional metallic biomaterials including stainless steel (SS316L) and titanium alloy (Ti6Al4V).
Collapse
Affiliation(s)
- Gopinath Perumal
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Harpreet Singh Grewal
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| | - Mayur Pole
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - L Vinod Kumar Reddy
- Centre for BioMaterials, Cellular and Molecular Theranautics, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Sundeep Mukherjee
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Harpreet Singh
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Geetha Manivasagam
- Centre for BioMaterials, Cellular and Molecular Theranautics, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Harpreet Singh Arora
- Department of Mechanical Engineering, School of Engineering, Shiv Nadar University, Greater Noida, Uttar Pradesh 201314, India
| |
Collapse
|
18
|
On the Use of Functionally Graded Materials to Differentiate the Effects of Surface Severe Plastic Deformation, Roughness and Chemical Composition on Cell Proliferation. METALS 2019. [DOI: 10.3390/met9121344] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Additive manufacturing allows the manufacture of parts made of functionally graded materials (FGM) with a chemical gradient. This research work underlines that the use of FGM makes it possible to study mechanical, microstructural or biological characteristics while minimizing the number of required samples. The application of severe plastic deformation (SPD) by surface mechanical attrition treatment (SMAT) on FGM brings new insights on a major question in this field: which is the most important parameter between roughness, chemistry and microstructure modification on biocompatibility? Our study demonstrates that roughness has a large impact on adhesion while microstructure refinement plays a key role during the early stage of proliferation. After several days, chemistry is the main parameter that holds sway in the proliferation stage. With this respect, we also show that niobium has a much better biocompatibility than molybdenum when alloyed with titanium.
Collapse
|
19
|
Bagherifard S, Molla MF, Kajanek D, Donnini R, Hadzima B, Guagliano M. Accelerated biodegradation and improved mechanical performance of pure iron through surface grain refinement. Acta Biomater 2019; 98:88-102. [PMID: 31100463 DOI: 10.1016/j.actbio.2019.05.033] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 05/07/2019] [Accepted: 05/11/2019] [Indexed: 10/26/2022]
Abstract
Pure iron and its biocompatible and biodegradable alloys have a high potential to be used for temporary load bearing medical implants. Nevertheless, the formation of passive iron oxide and hydroxide layers, which lead to a considerably low degradation rate at the physiological environment, has highly restricted their application. Herein we used numerical and experimental methods to evaluate the effect of severe shot peening, as a scalable mechanical surface treatment, on adjusting the performance of pure iron for biomedical applications. The developed numerical model was used to identify the range of peening parameters that would promote grain refinement on the pure iron surface. Experimental tests were then performed to analyze the gradient structure and the characteristics of the interface free surface layer created on peened samples. The results indicated that severe shot peening could notably increase the surface roughness and wettability, induce remarkable surface deformation and grain refinement, enhance surface hardness and generate high in-depth compressive residual stresses. The increased surface roughness besides the high concentration of micro cracks and dislocation density in the grain refined top layer promoted pure iron's degradation in the biologically simulated environment. STATEMENT OF SIGNIFICANCE: Biodegradable metallic materials with resorbable degradation products have a high potential to be used for temporary implants such as screws, pins, staples, etc. They can eliminate the need for implant retrieval surgery after the damaged tissue is healed, and result in reduced patient suffering besides lowered hospitalization costs. Pure iron is biodegradable and is an essential nutrient in human body; however, its application as biomedical implant is highly restricted by its slow degradation rate in physiological environment. We applied a scalable surface treatment able to induce grain refinement and increase surface roughness. This treatment enhances mechanical performance of pure iron and accelerates its degradation rate, paving the way for its broader applications for biomedical implants.
Collapse
|
20
|
Zhang M, Gong Z, Zhang J, Cheng H, Chen J, Zeng Y, Zhu Z, Wan Y. Engineered Zinc Titanate Coatings on the Titanium Surface with Enhanced Antitumor Properties and Biocompatibility. ACS Biomater Sci Eng 2019; 5:5935-5946. [DOI: 10.1021/acsbiomaterials.9b00841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Meng Zhang
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Zheni Gong
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Jiting Zhang
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Haoyan Cheng
- College of Material Science and Engineering, Henan University of Science and Technology, 263 Kaiyuan Road, Luoyang 471023, P. R. China
| | - Jisheng Chen
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Yan Zeng
- College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Zhihong Zhu
- Institute of Nano-Science and Nano-Technology, College of Physical Science and Technology, Central China Normal University, 152 Luoyu Road, Wuhan 430079, P. R. China
| | - Ying Wan
- College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, P. R. China
| |
Collapse
|
21
|
Asaro RJ, Lin K, Zhu Q. Mechanosensitivity Occurs along the Adhesome's Force Train and Affects Traction Stress. Biophys J 2019; 117:1599-1614. [PMID: 31604520 DOI: 10.1016/j.bpj.2019.08.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 07/29/2019] [Accepted: 08/28/2019] [Indexed: 11/16/2022] Open
Abstract
Herein, we consider the process of force development along the adhesome within cell focal adhesions. Our model adhesome consists of the actin cytoskeleton-vinculin-talin-integrin-ligand-extracellular matrix-substrate force train. We specifically consider the effects of substrate stiffness on the force levels expected along the train and on the traction stresses they create at the substrate. We find that significant effects of substrate stiffness are manifest within each constitutive component of the force train and on the density and distribution of integrin/ligand anchorage points with the substrate. By following each component of the force train, we are able to delineate specific gaps in the quantitative descriptions of bond survival that must be addressed so that improved quantitative forecasts become possible. Our analysis provides, however, a rational description for the various levels of traction stresses that have been reported and of the effect of substrate stiffness. Our approach has the advantage of being quite clear as to how each constituent contributes to the net development of force and traction stress. We demonstrate that to provide truly quantitative forecasts for traction stress, a far more detailed description of integrin/ligand density and distribution is required. Although integrin density is already a well-recognized important feature of adhesion, our analysis places a finer point on it in the manner of how we evaluate the magnitude of traction stress. We provide mechanistic insight into how understanding of this vital element of the adhesion process may proceed by addressing mechanistic causes of integrin clustering that may lead to patterning.
Collapse
Affiliation(s)
- Robert J Asaro
- Structural Engineering, Department of Structural Engineering, University of California San Diego, San Diego, California.
| | - Kuanpo Lin
- Structural Engineering, Department of Structural Engineering, University of California San Diego, San Diego, California
| | - Qiang Zhu
- Structural Engineering, Department of Structural Engineering, University of California San Diego, San Diego, California
| |
Collapse
|
22
|
Functionally graded titanium implants: Characteristic enhancement induced by combined severe plastic deformation. PLoS One 2019; 14:e0221491. [PMID: 31442256 PMCID: PMC6707610 DOI: 10.1371/journal.pone.0221491] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 08/07/2019] [Indexed: 11/19/2022] Open
Abstract
Commercially pure titanium was processed by equal channel angular pressing (ECAP) and surface mechanical attrition treatment (SMAT) for the purpose of developing functionally graded titanium used for implants and a gradient structure including nanostructured, deformed and undeformed zones were produced on the samples. In particular, it was aimed to design the gradient-structure in the titanium with enhanced properties by applying 4 ECAP passes to form bulk structure of ultrafine-grains and subsequently subjecting SMAT to the surface of ECAPed samples to produce nanostructured surface region. Microstructural examination was made by electron back scatter diffraction (EBSD). Also, microhardness, nanoindentation, topography, roughness and wettability were evaluated. To examine the biological response, human osteosarcoma cells were cultured in contact with the samples in various time periods and morphology change, cell viability and alkaline phosphate activity were conducted also cell morphology was monitored. EBSD showed development of ultrafine-grained structure after 4 passes of ECAP with an average grain size of 500 nm. Applying SMAT resulted in additional refinement in the ECAP samples, particularly in the subsurface regions to a depth of 112 μm. Furthermore, the SMATed samples showed an enhancement in roughness, wettability and hardness magnitudes. Viability enhanced up to 7% in SMATed + ECAPed sample, although the acceptable cell adhesion, improved cell differentiation and mineralization were seen. The combined use of ECAP and SMAT has shown a good potential for optimizing the design of modern functionally graded medical devices and implants.
Collapse
|
23
|
Nishimura SN, Hokazono N, Taki Y, Motoda H, Morita Y, Yamamoto K, Higashi N, Koga T. Photocleavable Peptide-Poly(2-hydroxyethyl methacrylate) Hybrid Graft Copolymer via Postpolymerization Modification by Click Chemistry To Modulate the Cell Affinities of 2D and 3D Materials. ACS APPLIED MATERIALS & INTERFACES 2019; 11:24577-24587. [PMID: 31252450 DOI: 10.1021/acsami.9b06807] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controlling the surface properties of engineered materials to enhance or reduce their cellular affinities remains a significant challenge in the field of biomaterials. We describe a universal technique for modulating the cytocompatibilities of two-dimensional (2D) and three-dimensional (3D) materials using a novel photocleavable peptide-grafted poly(2-hydroxyethyl methacrylate) (PHEMA) hybrid. The reversible addition-fragmentation chain transfer copolymerization of HEMA and propargyl acrylate was successfully controlled. The resultant alkyne-containing PHEMA was then used to modify the azide-terminated oligopeptides [Arg-Gly-Asp-Ser (RGDS)] with a photolabile 3-amino-3-(2-nitrophenyl)propanoic acid moiety via the copper-catalyzed alkyne-azide click chemistry. This strategy was readily used to decorate the surfaces of both hydrophilic and hydrophobic materials with RGDS peptides due to the high film-forming abilities of the PHEMA unit. The resultant thin film acted as an effective scaffold for improving cell adhesion and growth of NIH/3T3 fibroblasts and MC3T3-E1 osteoblast-like cells in vitro. In addition, UV irradiation of the surface led to the detachment of cells from the material surface accompanied by the photocleavage of RGDS grafts and enabled the 2D-patterning of cells and cell sheet engineering. The applicability of this system to 3D materials was investigated, and the cell adhesion was remarkably enhanced on a 3D-printed poly(lactic acid) object. This facile, biocompatible, and photoprocessable peptide-vinyl polymer hybrid system is valuable for its ability to advance the fields of tissue engineering, cell chips, and regenerative medicine.
Collapse
|
24
|
Perumal G, Chakrabarti A, Grewal HS, Pati S, Singh S, Arora HS. Enhanced antibacterial properties and the cellular response of stainless steel through friction stir processing. BIOFOULING 2019; 35:187-203. [PMID: 30913919 DOI: 10.1080/08927014.2019.1584794] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 02/05/2019] [Accepted: 02/10/2019] [Indexed: 06/09/2023]
Abstract
Biofilm related bacterial infection is one of the primary causes of implant failure. Limiting bacterial adhesion and colonization of pathogenic bacteria is a challenging task in health care. Here, a highly simplistic processing technique for imparting antibacterial properties on a biomedical grade stainless steel is demonstrated. Low-temperature high strain-rate deformation achieved using submerged friction stir processing resulted in a nearly single phase ultra-fine grain structure. The processed stainless steel demonstrated improved antibacterial properties for both Gram-positive and Gram-negative bacteria, significantly impeding biofilm formation during the in vitro study. Also, the processed stainless steel showed better compatibility with human fibroblasts manifested through apparent cell spreading and proliferation. The substantial antibacterial properties of the processed steel are explained in terms of the favorable electronic characteristics of the metal-oxide and by using classical Derjaguin-Landau-Verwey-Overbeek (DLVO) and the extended DLVO (XDLVO) approach at the cell-substrate interface.
Collapse
Affiliation(s)
- Gopinath Perumal
- a Surface Science and Tribology Laboratory, School of Mechanical Engineering , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
| | - Amrita Chakrabarti
- b Department of Life Sciences, School of Natural Sciences , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
| | - Harpreet S Grewal
- a Surface Science and Tribology Laboratory, School of Mechanical Engineering , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
| | - Soumya Pati
- b Department of Life Sciences, School of Natural Sciences , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
| | - Shailja Singh
- b Department of Life Sciences, School of Natural Sciences , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
- c Special Center for Molecular Medicine , Jawaharlal Nehru University , New Delhi , India
| | - Harpreet S Arora
- a Surface Science and Tribology Laboratory, School of Mechanical Engineering , Shiv Nadar University , Greater Noida , Uttar Pradesh , India
| |
Collapse
|
25
|
Huang R, Zhang L, Huang L, Zhu J. Enhanced in-vitro osteoblastic functions on β-type titanium alloy using surface mechanical attrition treatment. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 97:688-697. [PMID: 30678957 DOI: 10.1016/j.msec.2018.12.082] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 11/20/2018] [Accepted: 12/24/2018] [Indexed: 12/16/2022]
Abstract
To improve the osseointegration of titanium based implants, we herein modified Ti-25Nb-3Mo-2Sn-3Zr, a β-type titanium alloy by means of surface mechanical attrition treatment (SMAT). X-ray diffraction and transmission electron microscope results jointly indicate that SMAT process refined the average grain size of β phase in the surface layer of the alloy from about 110 μm to 26 nm. Besides, the surface properties and in-vitro cell culture tests of the SMAT-processed samples were investigated compared to those on the non-treated samples. Atomic force microscope and hydrophilicity tests revealed that the SMAT-processed surface was much rougher and hydrophilic than the non-treated surface. In vitro experimental results showed that SMAT-processed surface promoted adsorption of total protein as well as anchoring proteins such as vitronectin and fibronectin on its surface from cell culture medium, furthermore, significant improvements of osteoblast adhesion, proliferation, differentiation and extracellular mineralization were also found on the SMAT-processed surface compared to the non-treated surface. This could be attributed to the grain refinement as well as increased surface hydrophilicity and roughness after SMAT process. Our study provides a promising means of surface modification for future use in biomedical application.
Collapse
Affiliation(s)
- Run Huang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China; State-key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lan Zhang
- State-key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Lei Huang
- Department of Gastrointestinal Surgery, Hubei Cancer Hospital, Wuhan 430060, China
| | - Jianxiong Zhu
- Beijing Institute of Nanoenergy & Nanosystems, Chinese Academy of Sciences, National Center for Nanoscience and Technology (NCNST), Beijing 100083, China.
| |
Collapse
|
26
|
Zhang R, Mankoci S, Walters N, Gao H, Zhang H, Hou X, Qin H, Ren Z, Zhou X, Doll GL, Martini A, Sahai N, Dong Y, Ye C. Effects of laser shock peening on the corrosion behavior and biocompatibility of a nickel-titanium alloy. J Biomed Mater Res B Appl Biomater 2018; 107:1854-1863. [PMID: 30550636 DOI: 10.1002/jbm.b.34278] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 10/11/2018] [Accepted: 10/17/2018] [Indexed: 01/06/2023]
Abstract
Nickel-titanium (NiTi) alloy is an attractive material for biomedical implant applications. In this study, the effects of laser shock peening (LSP) on the biocompatibility, corrosion resistance, ion release rate and hardness of NiTi were characterized. The cell culture study indicated that the LSP-treated NiTi samples had lower cytotoxicity and higher cell survival rate than the untreated samples. Specifically, the cell survival rate increased from 88 ± 1.3% to 93 ± 1.1% due to LSP treatment. LSP treatment was shown to significantly decrease the initial Ni ion release rate compared with that of the untreated samples. Electrochemical tests indicated that LSP improved the corrosion resistance of the NiTi alloy in simulated body fluid, with a decrease in the corrosion current density from 1.41 ± 0.20 μA/cm2 to 0.67 ± 0.24 μA/cm2 . Immersion tests showed that calcium deposition was significantly enhanced by LSP. In addition, the hardness of NiTi alloy increased from 226 ± 3 HV before LSP to 261 ± 3 HV after LSP. These results demonstrated that LSP is a promising surface modification method that can be used to improve the mechanical properties, corrosion resistance and biocompatibility of NiTi alloy for biomedical applications. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 1854-1863, 2019.
Collapse
Affiliation(s)
- Ruixia Zhang
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| | - Steven Mankoci
- Department of Polymer Science, University of Akron, Akron, Ohio, 44325
| | - Nicholas Walters
- Department of Mechanical Engineering, University of California - Merced, Merced, California, 95343
| | - Hongyu Gao
- Department of Mechanical Engineering, University of California - Merced, Merced, California, 95343
| | - Hao Zhang
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| | - Xiaoning Hou
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| | - Haifeng Qin
- Timken Engineered Surfaces Laboratories, University of Akron, Akron, Ohio, 44325
| | - Zhencheng Ren
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| | - Xianfeng Zhou
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325.,Department of Polymer Science, University of Akron, Akron, Ohio, 44325.,School of Polymer Science and Engineering, Qingdao University of Science and Engineering, Qingdao, 266042, China
| | - Gary L Doll
- Timken Engineered Surfaces Laboratories, University of Akron, Akron, Ohio, 44325
| | - Ashlie Martini
- Department of Mechanical Engineering, University of California - Merced, Merced, California, 95343
| | - Nita Sahai
- Department of Polymer Science, University of Akron, Akron, Ohio, 44325.,Department of Geosciences, University of Akron, Akron, Ohio, 44325.,Integrated Bioscience Program, University of Akron, Akron, Ohio, 44325
| | - Yalin Dong
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| | - Chang Ye
- Department of Mechanical Engineering, University of Akron, Akron, Ohio, 44325
| |
Collapse
|
27
|
Nune KC, Montes I, Injeti VSY, Somani MC, Misra RDK. The determining role of nanoscale mechanical twinning on cellular functions of nanostructured materials. J Mech Behav Biomed Mater 2018; 88:185-195. [PMID: 30173071 DOI: 10.1016/j.jmbbm.2018.08.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 08/08/2018] [Accepted: 08/23/2018] [Indexed: 12/21/2022]
Abstract
Considering that micromotions generated at the bone-implant interface under physiological loading introduce mechanical strain on the tissue and surface of the implant and that strain can be introduced during processing of the biomedical device, we elucidate here the interplay between mechanically-induced nanoscale twinning in austenitic stainless steel on osteoblast functions. Mechanically-induced nanoscale twinning significantly impacted cell attachment, cell-substrate interactions, proliferation, and subsequent synthesis of prominent proteins (fibronectin, actin, and vinculin). Twinning was beneficial in favorably modulating cellular activity and contributed to small differences in hydrophilicity and nanoscale roughness in relation to the untwinned surface.
Collapse
Affiliation(s)
- K C Nune
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, USA
| | - I Montes
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, USA
| | - V S Y Injeti
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, USA
| | - M C Somani
- Department of Mechanical Engineering, The University of Oulu, P.O. Box 4200, 90014 Oulu, Finland
| | - R D K Misra
- Department of Metallurgical, Materials and Biomedical Engineering, University of Texas at El Paso, 500 W. University Avenue, El Paso, TX 79968, USA.
| |
Collapse
|
28
|
Sun S, Zhang Y, Zeng D, Zhang S, Zhang F, Yu W. PLGA film/Titanium nanotubues as a sustained growth factor releasing system for dental implants. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:141. [PMID: 30120576 DOI: 10.1007/s10856-018-6138-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Accepted: 07/26/2018] [Indexed: 06/08/2023]
Abstract
Ti-based implants sometimes fail to integrate with surrounding bone tissue due to insufficiency of new bone formation and surface bonding. To overcome this problem, this research focused on establishing a sustained bone growth factor delivery system by applying anodized TiO2 nanotube arrays and PLGA film on the titanium implant surface. TiO2 nanotube arrays were made by anodic oxidation method, and were then filled with rhBMP2 by vacuum freeze-drying. Next, PLGA was deposition on the surface of this material. The designed system was characterized, pharmacokinetic release rate of rhBMP2 was determined. Adhesion, proliferation, and differentiation activity of osteoblasts cultured on the new surfaces and traditional titanium surfaced were compared. SEM showed that a surface of TiO2 nanotube arrays were successfully generated. PLGA membranes of 50 nm, 250 nm, 800 nm thickness were successfully deposited on the surfaces of TiO2 nanotube layers by using 1%, 3%, 10% PLGA solutions. PLGA film of 250 nm thickness showed ideally controlled release of rhBMP2, lasting for 4 weeks. Furthermore, 250 nm thickness PLGA film improved osteoblast adhesion, proliferation, and levels of alkaline phosphatase. In conclusion, the PLGA film / TiO2 nanotube growth factor delivery system can effectively sustain the release of rhBMP-2, and promote proliferation and differentiation of MC3T3-E1 osteoblasts.
Collapse
Affiliation(s)
- Shengjun Sun
- Shandong Provincial Key Laboratory of Oral Biomedicine, College of Stomatology, Shandong University, No. 44-1, Wenhuaxilu Rd, Jinan, Shandong, 250012, People's Republic of China
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China
| | - Yilin Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China
- Department of Stomatology, Shandong Provincial Hospital affiliated to Shandong University, Yanshanxi Rd, Jinan, Shandong, 250001, People's Republic of China
| | - Deliang Zeng
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China
| | - Songmei Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China
- Eastman Institute for Oral Health, University of Rochester, 625 Elmwood Avenue, Rochester, New York, 14620, USA
| | - Fuqiang Zhang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China.
| | - Weiqiang Yu
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University School of Medicine, No. 639, zhizaoju Rd, Shanghai, 250011, People's Republic of China.
| |
Collapse
|
29
|
Nazarov DV, Smirnov VM, Zemtsova EG, Yudintceva NM, Shevtsov MA, Valiev RZ. Enhanced Osseointegrative Properties of Ultra-Fine-Grained Titanium Implants Modified by Chemical Etching and Atomic Layer Deposition. ACS Biomater Sci Eng 2018; 4:3268-3281. [DOI: 10.1021/acsbiomaterials.8b00342] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Denis V. Nazarov
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
- National Technology Initiative Center of Excellence in Advanced Manufacturing Technologies at Peter the Great St. Petersburg Polytechnic University, Politekhnicheskaya 29/1 str., Saint Petersburg 195251, Russia
| | - Vladimir M. Smirnov
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| | - Elena G. Zemtsova
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| | - Natalia M. Yudintceva
- Institute of Cytology of the Russian Academy of Sciences (RAS), Tikhoretsky ave. 4, Saint Petersburg 194064, Russia
| | - Maxim A. Shevtsov
- Institute of Cytology of the Russian Academy of Sciences (RAS), Tikhoretsky ave. 4, Saint Petersburg 194064, Russia
- First Pavlov State Medical University of St. Petersburg, Lva Tolstogo str. 6-8, Saint Petersburg 197022, Russia
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Ismaniger Str. 22, 81675 Munich, Germany
| | - Ruslan Z. Valiev
- Saint Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| |
Collapse
|
30
|
Wang T, Qian S, Zha GC, Zhao XJ, Ding L, Sun JY, Li B, Liu XY. Synergistic effects of titania nanotubes and silicon to enhance the osteogenic activity. Colloids Surf B Biointerfaces 2018; 171:419-426. [PMID: 30075417 DOI: 10.1016/j.colsurfb.2018.07.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 07/10/2018] [Accepted: 07/23/2018] [Indexed: 11/29/2022]
Abstract
In this study, titania nanotubes (TNTs) incorporating silicon (Si) were formed on Ti disks using anodization and electron beam evaporation (EBE) technology to improve the osteogenic activity. The amount of Si was exquisitely adjusted by controlling the duration of EBE to optimize the biofunctionality. As the Si was incorporated, the samples exhibited hydrophilic surfaces. Long lasting and controllable Si release was observed from the EBE-modified samples without cytotoxicity. Moreover, initial cell adhesion, spreading, proliferation and osteogenic differentiation of MC3T3-E1 cells were evaluated. The results showed a notable enhancement of spreading, osteogenesis and differentiation of cells on silicon-coated TNTs (Si-TNTs). In particular, samples with highest amount of silicon (∼5.93% Si) displayed greatest augmentation of ALP activity, osteogenic-related gene expression and mineralization compared to the others in the present study. It was indicated that the modification with TNTs and appropriated Si content resulted in enhanced osteoblastic spreading, proliferation and differentiation, and therefore has the potential for future applications in the field of orthopedics.
Collapse
Affiliation(s)
- Tao Wang
- Department of Orthopedics, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China; School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Shi Qian
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
| | - Guo-Chun Zha
- Department of Orthopedics, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221002, China
| | - Xi-Jiang Zhao
- Department of Orthopedics, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Lei Ding
- School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Jun-Ying Sun
- Department of Orthopedics, the First Affiliated Hospital, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Bin Li
- Department of Orthopedics, the First Affiliated Hospital, Orthopaedic Institute, Soochow University, Suzhou, Jiangsu 215006, China.
| | - Xuan-Yong Liu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China.
| |
Collapse
|
31
|
Hou X, Mankoci S, Walters N, Gao H, Zhang R, Li S, Qin H, Ren Z, Doll GL, Cong H, Martini A, Vasudevan VK, Zhou X, Sahai N, Dong Y, Ye C. Hierarchical structures on nickel-titanium fabricated by ultrasonic nanocrystal surface modification. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:12-20. [PMID: 30274044 DOI: 10.1016/j.msec.2018.07.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 06/07/2018] [Accepted: 07/12/2018] [Indexed: 02/01/2023]
Abstract
Hierarchical structures on metallic implants can enhance the interaction between cells and implants and thus increase their biocompatibility. However, it is difficult to directly fabricate hierarchical structures on metallic implants. In this study, we used a simple one-step method, ultrasonic nanocrystal surface modification (UNSM), to fabricate hierarchical surface structures on a nickel-titanium (NiTi) alloy. During UNSM, a tungsten carbide ball hits metal surfaces at ultrasonic frequency. The overlapping of the ultrasonic strikes generates hierarchical structures with microscale grooves and embedded nanoscale wrinkles. Cell culture experiments showed that cells adhere better and grow more prolifically on the UNSM-treated samples. Compared with the untreated samples, the UNSM-treated samples have higher corrosion resistance. In addition, the surface hardness increased from 243 Hv to 296 Hv and the scratch hardness increased by 22%. Overall, the improved biocompatibility, higher corrosion resistance, and enhanced mechanical properties demonstrate that UNSM is a simple and effective method to process metallic implant materials.
Collapse
Affiliation(s)
- Xiaoning Hou
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
| | - Steven Mankoci
- Department of Polymer Science, University of Akron, Akron, OH 44325, USA
| | - Nicholas Walters
- Department of Mechanical Engineering, University of California - Merced, Merced, CA 95343, USA
| | - Hongyu Gao
- Department of Mechanical Engineering, University of California - Merced, Merced, CA 95343, USA
| | - Ruixia Zhang
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
| | - Shengxi Li
- Department of Chemical and Biomolecular Engineering, University of Akron, Akron, OH, USA
| | - Haifeng Qin
- Timken Engineered Surfaces Laboratories, University of Akron, Akron, OH 44325, USA
| | - Zhencheng Ren
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
| | - Gary L Doll
- Timken Engineered Surfaces Laboratories, University of Akron, Akron, OH 44325, USA
| | - Hongbo Cong
- Department of Chemical and Biomolecular Engineering, University of Akron, Akron, OH, USA
| | - Ashlie Martini
- Department of Mechanical Engineering, University of California - Merced, Merced, CA 95343, USA
| | - Vijay K Vasudevan
- Department of Mechanical and Materials Engineering, University of Cincinnati, Cincinnati, OH 45221, USA
| | - Xianfeng Zhou
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA; Department of Polymer Science, University of Akron, Akron, OH 44325, USA; School of Polymer Science and Engineering, Qingdao University of Science and Engineering, Qingdao 266042, China.
| | - Nita Sahai
- Department of Polymer Science, University of Akron, Akron, OH 44325, USA; Department of Geosciences, University of Akron, Akron, OH 44325, USA; Integrated Bioscience Program, University of Akron, Akron, OH 44325, USA
| | - Yalin Dong
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA
| | - Chang Ye
- Department of Mechanical Engineering, University of Akron, Akron, OH 44325, USA.
| |
Collapse
|
32
|
Bahl S, Meka SRK, Suwas S, Chatterjee K. Surface Severe Plastic Deformation of an Orthopedic Ti–Nb–Sn Alloy Induces Unusual Precipitate Remodeling and Supports Stem Cell Osteogenesis through Akt Signaling. ACS Biomater Sci Eng 2018; 4:3132-3142. [DOI: 10.1021/acsbiomaterials.8b00406] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sumit Bahl
- Department of Materials Engineering Indian Institute of Science, Bangalore, India 560012
| | - Sai Rama Krishna Meka
- Department of Materials Engineering Indian Institute of Science, Bangalore, India 560012
| | - Satyam Suwas
- Department of Materials Engineering Indian Institute of Science, Bangalore, India 560012
| | - Kaushik Chatterjee
- Department of Materials Engineering Indian Institute of Science, Bangalore, India 560012
| |
Collapse
|
33
|
Shin MH, Baek SM, Polyakov AV, Semenova IP, Valiev RZ, Hwang WB, Hahn SK, Kim HS. Molybdenum Disulfide Surface Modification of Ultrafine-Grained Titanium for Enhanced Cellular Growth and Antibacterial Effect. Sci Rep 2018; 8:9907. [PMID: 29967339 PMCID: PMC6028577 DOI: 10.1038/s41598-018-28367-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 06/20/2018] [Indexed: 11/23/2022] Open
Abstract
The commercially pure Ti (CP Ti) and equal-channel angular pressing (ECAP) processed Ti can contribute to the downsizing of medical devices with their superior mechanical properties and negligible toxicity. However, the ECAP-processed pure Ti has the risk of bacterial infection. Here, the coarse- and ultrafine-grained Ti substrates were surface-modified with molybdenum disulfide (MoS2) to improve the cell proliferation and growth with antibacterial effect for further dental applications. According to in vitro tests using the pre-osteoblast of MC3T3-E1 cell and a bacterial model of Escherichia coli (E. coli), MoS2 nanoflakes coated and ECAP-processed Ti substrates showed a significant increase in surface energy and singlet oxygen generation resulting in improved cell attachment and antibacterial effect. In addition, we confirmed the stability of the surface modified Ti substrates in a physiological solution and an artificial bone. Taken together, MoS2 modified and ECAP-processed Ti substrates might be successfully harnessed for various dental applications.
Collapse
Affiliation(s)
- Myeong Hwan Shin
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Seung Mi Baek
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Alexander V Polyakov
- Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, 450008, Russia
| | - Irina P Semenova
- Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, 450008, Russia
| | - Ruslan Z Valiev
- Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa, 450008, Russia
- Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034, Russian Federation
| | - Woon-Bong Hwang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
- Center for High Entropy Alloys, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.
| |
Collapse
|
34
|
Huo WT, Zhao LZ, Zhang W, Lu JW, Zhao YQ, Zhang YS. In vitro corrosion behavior and biocompatibility of nanostructured Ti6Al4V. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:268-279. [PMID: 30184751 DOI: 10.1016/j.msec.2018.06.061] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 06/02/2018] [Accepted: 06/28/2018] [Indexed: 12/26/2022]
Abstract
Ti6Al4V (TC4) alloy has long been used as a bone interfacing implant material in dentistry and orthopedics due to its excellent biocompatibility and mechanical properties. The performance of TC4 can be further tailored by altering its grain structures. In this study, by means of sliding friction treatment (SFT), a nano-grained (NG) surface layer with an average grain size of ≤100 nm on the topmost surface was successfully generated on coarse-grained (CG) TC4 alloy sheet. It was shown that the NG surface possessed notably enhanced corrosion resistance in physiological solution compared to the CG surface, due to the formation of thicker and denser passive film facilitated by surface nanocrystallization. Additionally, the NG surface with stronger hydrophilicity favorably altered the absorption of anchoring proteins such as fibronectin (Fn) and vitronectin (Vn) that can mediate subsequent osteoblast functions. The in vitro results indicated that the NG surface exhibited remarkable enhancement in osteoblast adherence, spreading and proliferation, and obviously accelerated the osteoblast differentiation as compared to CG surface. Moreover, the NG surface also demonstrated good hemocompatibility. These findings suggest that SFT can endure bio-metals with advanced multifunctional properties for biomedical applications.
Collapse
Affiliation(s)
- W T Huo
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
| | - L Z Zhao
- State key Laboratory of Military Stomatology, Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - W Zhang
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
| | - J W Lu
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
| | - Y Q Zhao
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China
| | - Y S Zhang
- Northwest Institute for Nonferrous Metal Research, Xi'an 710016, China.
| |
Collapse
|
35
|
Yin F, Xu R, Hu S, Zhao K, Yang S, Kuang S, Li Q, Han Q. Enhanced Mechanical and Biological Performance of an Extremely Fine Nanograined 316L Stainless Steel Cell-Substrate Interface Fabricated by Ultrasonic Shot Peening. ACS Biomater Sci Eng 2018; 4:1609-1621. [PMID: 33445318 DOI: 10.1021/acsbiomaterials.8b00173] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An extremely fine nanograined (NG) rough surface with the average grain size of 10 nm was successfully fabricated on 316L stainless steel (316L SS), which is a commonly used bioimplant metallic materials, via a simple physical therapy, namely, ultrasonic shot peening (USP). This extremely fine NG rough surface was proposed as the cell-substrate interface to enhance the mechanical and biological performance of 316L SS in orthopedic applications. Nanoindentation and micropillar compression tests indicated the significant improvement of the nanohardness and yield strength of the developed NG-316L SS, respectively, and the "in vitro" studies demonstrated that the developed extremely fine NG-316L SS rough surface could significantly enhance the attachment of the human osteoblast cells (Saos-2) compared with the as-received coarse-grained 316L SS surface. The observed mechanical and biological enhancement of the extremely fine NG-316L SS surface can be attributed to the ultrahigh-density nanosized grain boundaries, which could obstruct dislocation movement when the materials undergo plastic deformation and promote protein adsorption by providing a continuum of probable binding sites with partial surface coverage when the material encounters biological environments. In addition, aggregated protein particles were clearly observed on the proposed extremely fine NG-316L SS surface when it was used for the substrate of the human osteoblast cells. The findings and the advanced surface engineering technology utilized in this paper could promote the currently proposed concept that using nanograined/ultrafine grained cell-substrate interface for mechanical and biological enhancement of bioimplant materials from the current practice level of "hundreds of nanometers" to that of "tens of nanometers" or possibly even "several nanometers".
Collapse
|
36
|
An Energetic Approach to Predict the Effect of Shot Peening-Based Surface Treatments. METALS 2018. [DOI: 10.3390/met8030190] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Almen intensity and surface coverage are well-known to be the defining parameters of shot peening-based surface treatments. These parameters are directly affected by material properties, the extension of the contact zone, the geometry of the impact pair, as well as the impact rate and velocity. Such intricate relationships have resulted in often dissimilar predictions of shot peening effects even while using an identical combination of Almen intensity and surface coverage. With the fast pace introduction of new generation impact-based surface treatments, there is a need to find a more widespread parameter that would facilitate the direct comparison of all different treatments and relate the main process parameters to the resultant mechanical characteristics. Herein, we propose to use an energy-based parameter to describe the peening process in a more widespread approach, which collectively incorporates the effects of the Almen intensity and surface coverage, as well as the diameter, material, and velocity of the impact media. A set of finite element analyses was developed to demonstrate the correlation of the peening process effects with this energetic approach. Comparisons with the experimental data served as proof of concept, confirming that the proposed method could provide a quite good estimation of the effect of peening parameters on the treated material.
Collapse
|
37
|
Effects of nanofeatures induced by severe shot peening (SSP) on mechanical, corrosion and cytocompatibility properties of magnesium alloy AZ31. Acta Biomater 2018; 66:93-108. [PMID: 29183850 DOI: 10.1016/j.actbio.2017.11.032] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/31/2017] [Accepted: 11/20/2017] [Indexed: 11/23/2022]
Abstract
The application of biodegradable magnesium-based materials in the biomedical field is highly restricted by their low fatigue strength and high corrosion rate in biological environments. Herein, we treated the surface of a biocompatible magnesium alloy AZ31 by severe shot peening in order to evaluate the potential of surface grain refinement to enhance this alloy's functionality in a biological environment. The AZ31 samples were studied in terms of micro/nanostructural, mechanical, and chemical characteristics in addition to cytocompatibility properties. The evolution of surface grain structure and surface morphology were investigated using optical, scanning and transmission electron microscopy. Surface roughness, wettability, and chemical composition, as well as in depth-microhardness and residual stress distribution, fatigue behaviour and corrosion resistance were investigated. Cytocompatibility tests with osteoblasts (bone forming cells) were performed using sample extracts. The results revealed for the first time that severe shot peening can significantly enhance mechanical properties of AZ31 without causing adverse effects on the growth of surrounding osteoblasts. The corrosion behavior, on the other hand, was not improved; nevertheless, removing the rough surface layer with a high density of crystallographic lattice defects, without removing the entire nanocrystallized layer, provided a good potential for improving corrosion characteristics after severe shot peening and thus, this method should be studied for a wide range of orthopedic applications in which biodegradable magnesium is used. STATEMENT OF SIGNIFICANCE A major challenge for most commonly used metals for bio-implants is their non-biodegradability that necessitates revision surgery for implant retrieval when used as fixation plates, screws, etc. Magnesium is reported among the most biocompatible metals that resorb over time without adverse tissue reactions and is indispensable for many biochemical processes in human body. However, fast and uncontrolled degradation of magnesium alloys in the physiological environment in addition to their inadequate mechanical properties especially under repeated loading have limited their application in the biomedical field. The present study providesdata on the effect of a relatively simple surface nanocrystallziation method with high potential to tailor the mechanical and chemical behavior of magnesium based material while maintaining its cytocompatibility.
Collapse
|
38
|
Perumal G, Ayyagari A, Chakrabarti A, Kannan D, Pati S, Grewal HS, Mukherjee S, Singh S, Arora HS. Friction Stir Processing of Stainless Steel for Ascertaining Its Superlative Performance in Bioimplant Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36615-36631. [PMID: 28972737 DOI: 10.1021/acsami.7b11064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Substrate-cell interactions for a bioimplant are driven by substrate's surface characteristics. In addition, the performance of an implant and resistance to degradation are primarily governed by its surface properties. A bioimplant typically degrades by wear and corrosion in the physiological environment, resulting in metallosis. Surface engineering strategies for limiting degradation of implants and enhancing their performance may reduce or eliminate the need for implant removal surgeries and the associated cost. In the current study, we tailored the surface properties of stainless steel using submerged friction stir processing (FSP), a severe plastic deformation technique. FSP resulted in significant microstructural refinement from 22 μm grain size for the as-received alloy to 0.8 μm grain size for the processed sample with increase in hardness by nearly 1.5 times. The wear and corrosion behavior of the processed alloy was evaluated in simulated body fluid. The processed sample demonstrated remarkable improvement in both wear and corrosion resistance, which is explained by surface strengthening and formation of a highly stable passive layer. The methylthiazol tetrazolium assay demonstrated that the processed sample is better in supporting cell attachment, proliferation with minimal toxicity, and hemolysis. The athrombogenic characteristic of the as-received and processed samples was evaluated by fibrinogen adsorption and platelet adhesion via the enzyme-linked immunosorbent assay and lactate dehydrogenase assay, respectively. The processed sample showed less platelet and fibrinogen adhesion compared with the as-received alloy, signifying its high thromboresistance. The current study suggests friction stir processing to be a versatile toolbox for enhancing the performance and reliability of currently used bioimplant materials.
Collapse
Affiliation(s)
| | - A Ayyagari
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | | | | | | | | | - S Mukherjee
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | - S Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru University , New Delhi 110067, India
| | | |
Collapse
|
39
|
Guadarrama Bello D, Fouillen A, Badia A, Nanci A. A nanoporous titanium surface promotes the maturation of focal adhesions and formation of filopodia with distinctive nanoscale protrusions by osteogenic cells. Acta Biomater 2017; 60:339-349. [PMID: 28728969 DOI: 10.1016/j.actbio.2017.07.022] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/10/2017] [Accepted: 07/15/2017] [Indexed: 01/09/2023]
Abstract
While topography is a key determinant of the cellular response to biomaterials, the mechanisms implicated in the cell-surface interactions are complex and still not fully elucidated. In this context, we have examined the effect of nanoscale topography on the formation of filopodia, focal adhesions, and gene expression of proteins associated with cell adhesion and sensing. Commercially pure titanium discs were treated by oxidative nanopatterning with a solution of H2SO4/H2O2 50:50 (v/v). Scanning electron microscopy and atomic force microscopy characterizations showed that this facile chemical treatment efficiently creates a unique nanoporous surface with a root-mean-square roughness of 11.5nm and pore diameter of 20±5nm. Osteogenic cells were cultured on polished (control) and nanotextured discs for periods of 6, 24, and 72h. Immunofluorescence analysis revealed increases in the adhesion formation per cell area, focal adhesion length, and maturity on the nanoporous surface. Gene expression for various focal adhesion markers, including paxillin and talin, and different integrins (e.g. α1, β1, and α5) was also significantly increased. Scanning electron microscopy revealed the presence of more filopodia on cells grown on the nanoporous surface. These cell extensions displayed abundant and distinctive nanoscale lateral protrusions of 10-15nm diameter that molded the nanopore walls. Together the increase in the focal adhesions and abundance of filopodia and associated protrusions could contribute to strengthening the adhesive interaction of cells with the surface, and thereby, alter the nanoscale biomechanical relationships that trigger cellular cascades that regulate cell behavior. STATEMENT OF SIGNIFICANCE Oxidative patterning was exploited to create a unique three-dimensional network of nanopores on titanium surfaces. Our study illustrates how a facile chemical treatment can be advantageously used to modulate cellular behavior. The nanoscale lateral protrusions on filopodia elicited by this surface are novel adhesive structures. Altogether, the increases in focal adhesion, length, maturity, and filopodia with distinctive lateral protrusions could substantially increase the contact area and adhesion strength of cells, thereby promoting the activation of cellular signaling cascades that may explain the positive osteogenic outcomes previously achieved with this surface. Such physicochemical cueing offers a simple attractive alternative to the use of bioactive agents for guiding tissue repair/regeneration around implantable metals.
Collapse
Affiliation(s)
- Dainelys Guadarrama Bello
- Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dentistry, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada.
| | - Aurélien Fouillen
- Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dentistry, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada.
| | - Antonella Badia
- Department of Chemistry, Faculty of Arts and Sciences, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada.
| | - Antonio Nanci
- Laboratory for the Study of Calcified Tissues and Biomaterials, Department of Stomatology, Faculty of Dentistry, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada; Department of Biochemistry and Molecular Medicine, Faculty of Medicine, Université de Montréal, C.P 6128 succursale Centre-Ville, Montréal, Québec H3C3J7, Canada.
| |
Collapse
|
40
|
Baek SM, Shin MH, Moon J, Jung HS, Lee SA, Hwang W, Yeom JT, Hahn SK, Kim HS. Superior Pre-Osteoblast Cell Response of Etched Ultrafine-Grained Titanium with a Controlled Crystallographic Orientation. Sci Rep 2017; 7:44213. [PMID: 28266643 PMCID: PMC5339782 DOI: 10.1038/srep44213] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/03/2017] [Indexed: 11/24/2022] Open
Abstract
Ultrafine-grained (UFG) Ti for improved mechanical performance as well as its surface modification enhancing biofunctions has attracted much attention in medical industries. Most of the studies on the surface etching of metallic biomaterials have focused on surface topography and wettability but not crystallographic orientation, i.e., texture, which influences the chemical as well as the physical properties. In this paper, the influences of texture and grain size on roughness, wettability, and pre-osteoblast cell response were investigated in vitro after HF etching treatment. The surface characteristics and cell behaviors of ultrafine, fine, and coarse-grained Ti were examined after the HF etching. The surface roughness during the etching treatment was significantly increased as the orientation angle from the basal pole was increased. The cell adhesion tendency of the rough surface was promoted. The UFG Ti substrate exhibited a higher texture energy state, rougher surface, enhanced hydrophilic wettability, and better cell adhesion and proliferation behaviors after etching than those of the coarse- and fine-grained Ti substrates. These results provide a new route for enhancing both mechanical and biological performances using etching after grain refinement of Ti.
Collapse
Affiliation(s)
- Seung Mi Baek
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Myeong Hwan Shin
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jongun Moon
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Ho Sang Jung
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - See Am Lee
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - WoonBong Hwang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Jong Taek Yeom
- Korea Institute of Materials Science, Changwon, 51508, Republic of Korea
| | - Sei Kwang Hahn
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| | - Hyoung Seop Kim
- Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea.,Center for High Entropy Alloys, Pohang University of Science and Technology (POSTECH), Pohang, 37673, Republic of Korea
| |
Collapse
|
41
|
Modification of the Surface Topography and Composition of Ultrafine and Coarse Grained Titanium by Chemical Etching. NANOMATERIALS 2017; 7:nano7010015. [PMID: 28336849 PMCID: PMC5295205 DOI: 10.3390/nano7010015] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 01/09/2023]
Abstract
In this study, we present the detailed investigation of the influence of the etching medium (acidic or basic Piranha solutions) and the etching time on the morphology and surface relief of ultrafine grained (UFG) and coarse grained (CG) titanium. The surface relief and morphology have been studied by means of scanning electron microscopy (SEM), atomic force microscopy (AFM), and the spectral ellipsometry. The composition of the samples has been determined by X-ray fluorescence analysis (XRF) and X-ray Photoelectron Spectroscopy (XPS). Significant difference in the etching behavior of UFG and CG titanium has been found. UFG titanium exhibits higher etching activity independently of the etching medium. Formed structures possess higher homogeneity. The variation of the etching medium and time leads to micro-, nano-, or hierarchical micro/nanostructures on the surface. Significant difference has been found between surface composition for UFG titanium etched in basic and acidic Piranha solution. Based on the experimental data, the possible reasons and mechanisms are considered for the formation of nano- and microstructures. The prospects of etched UFG titanium as the material for implants are discussed.
Collapse
|
42
|
Bagherifard S. Mediating bone regeneration by means of drug eluting implants: From passive to smart strategies. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 71:1241-1252. [PMID: 27987680 DOI: 10.1016/j.msec.2016.11.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/06/2016] [Accepted: 11/02/2016] [Indexed: 02/03/2023]
Abstract
In addition to excellent biocompatibility and mechanical performance, the new generation of bone and craniofacial implants are expected to proactively contribute to the regeneration process and dynamically interact with the host tissue. To this end, integration and sustained delivery of therapeutic agents has become a rapidly expanding area. The incorporated active molecules can offer supplementary features including promoting oteoconduction and angiogenesis, impeding bacterial infection and modulating host body reaction. Major limitations of the current practices consist of low drug stability overtime, poor control of release profile and kinetics as well as complexity of finding clinically appropriate drug dosage. In consideration of the multifaceted cascade of bone regeneration process, this research is moving towards dual/multiple drug delivery, where precise control on simultaneous or sequential delivery, considering the possible synergetic interaction of the incorporated bioactive factors is of utmost importance. Herein, recent advancements in fabrication of synthetic load bearing implants equipped with various drug delivery systems are reviewed. Smart drug delivery solutions, newly developed to provide higher tempo-spatial control on the delivery of the pharmaceutical agents for targeted and stimuli responsive delivery are highlighted. The future trend of implants with bone drug delivery mechanisms and the most common challenges hindering commercialization and the bench to bedside progress of the developed technologies are covered.
Collapse
Affiliation(s)
- Sara Bagherifard
- Politecnico di Milano, Department of Mechanical Engineering, Milan, Italy.
| |
Collapse
|
43
|
Akbari M, Tamayol A, Bagherifard S, Serex L, Mostafalu P, Faramarzi N, Mohammadi MH, Khademhosseini A. Textile Technologies and Tissue Engineering: A Path Toward Organ Weaving. Adv Healthc Mater 2016; 5:751-66. [PMID: 26924450 PMCID: PMC4910159 DOI: 10.1002/adhm.201500517] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Revised: 09/07/2015] [Indexed: 12/14/2022]
Abstract
Textile technologies have recently attracted great attention as potential biofabrication tools for engineering tissue constructs. Using current textile technologies, fibrous structures can be designed and engineered to attain the required properties that are demanded by different tissue engineering applications. Several key parameters such as physiochemical characteristics of fibers, microarchitecture, and mechanical properties of the fabrics play important roles in the effective use of textile technologies in tissue engineering. This review summarizes the current advances in the manufacturing of biofunctional fibers. Different textile methods such as knitting, weaving, and braiding are discussed and their current applications in tissue engineering are highlighted.
Collapse
Affiliation(s)
- Mohsen Akbari
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Mechanical Engineering, University of Victoria, Victoria, BC, V8P 5C2, Canada
| | - Ali Tamayol
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Sara Bagherifard
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Mechanical Engineering, Politecnico di Milano, Milan, 20156, Italy
- David H. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ludovic Serex
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Pooria Mostafalu
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Negar Faramarzi
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Mohammad Hossein Mohammadi
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ali Khademhosseini
- Department of Medicine, Brigham and Women's Hospital, Biomaterials Innovation Research Center, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Physics, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul, 143-701, Republic of Korea
| |
Collapse
|
44
|
He M, Chen X, Cheng K, Weng W, Wang H. Enhanced Osteogenic Activity of TiO2 Nanorod Films with Microscaled Distribution of Zn-CaP. ACS APPLIED MATERIALS & INTERFACES 2016; 8:6944-6952. [PMID: 26930577 DOI: 10.1021/acsami.6b01284] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The topography at the micro-/nanoscale level and bioactive composition of material surfaces have been thought to play vital roles in their interactions with cells. However, it is still a challenge to further modify special topography with biodegradable composition or vice versa. In this study, TiO2 nanorod films covered with microscale-distributed Zn-containing calcium phosphate (Zn-CaP) were prepared, trying to create a micro-/nanoscale topography and Zn(2+) release capability. MC3T3-E1 cells cultured on TiO2 nanorod film with sparsely distributed Zn-CaP (TiO2/S-ZCP) had significantly higher biological responses than those on the films with densely distributed Zn-CaP (TiO2/D-ZCP) and fully covered Zn-CaP (F-ZCP). TiO2/S-ZCP film was demonstrated to facilitate osteogenic differentiation much more strongly than F-ZCP and TiO2/D-ZCP films based on evaluations of ALP, related gene expressions, and extracellular matrix mineralization. The higher osteogenic differentiation on TiO2/S-ZCP film is ascribed to the micro-/nanoscale topography from Zn-CaP coverage promoting cell adhesion and filopodia extension, and inducing differentiation-orientation in the initial stage. And consequently Zn(2+) release results in enhancement of differentiation. Therefore, we believe that better organization of the micro-/nanotopography and bioactive ion release on the surface would be a promising way to enhance osteogenic activity for orthopedic and dental implants.
Collapse
Affiliation(s)
- Meng He
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China
| | - Xiaoyi Chen
- The Affiliated Stomatology Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
| | - Kui Cheng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University , Hangzhou 310027, China
| | - Huiming Wang
- The Affiliated Stomatology Hospital of Medical College, Zhejiang University , Hangzhou 310003, China
| |
Collapse
|
45
|
Qi Y, Contreras KG, Jung HD, Kim HE, Lapovok R, Estrin Y. Ultrafine-grained porous titanium and porous titanium/magnesium composites fabricated by space holder-enabled severe plastic deformation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 59:754-765. [DOI: 10.1016/j.msec.2015.10.070] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 10/15/2015] [Accepted: 10/23/2015] [Indexed: 10/22/2022]
|
46
|
Gaharwar AK, Arpanaei A, Andresen TL, Dolatshahi-Pirouz A. 3D Biomaterial Microarrays for Regenerative Medicine: Current State-of-the-Art, Emerging Directions and Future Trends. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:771-781. [PMID: 26607415 DOI: 10.1002/adma.201503918] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 08/19/2015] [Indexed: 06/05/2023]
Abstract
Three dimensional (3D) biomaterial microarrays hold enormous promise for regenerative medicine because of their ability to accelerate the design and fabrication of biomimetic materials. Such tissue-like biomaterials can provide an appropriate microenvironment for stimulating and controlling stem cell differentiation into tissue-specific lineages. The use of 3D biomaterial microarrays can, if optimized correctly, result in a more than 1000-fold reduction in biomaterials and cells consumption when engineering optimal materials combinations, which makes these miniaturized systems very attractive for tissue engineering and drug screening applications.
Collapse
Affiliation(s)
- Akhilesh K Gaharwar
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, 77843, USA
- Department of Materials Science and Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Ayyoob Arpanaei
- Department of Industrial and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Thomas L Andresen
- Technical University of Denmark, DTU Nanotech, Center for Nanomedicine and Theranostics, 2800, Kgs, Denmark
| | - Alireza Dolatshahi-Pirouz
- Technical University of Denmark, DTU Nanotech, Center for Nanomedicine and Theranostics, 2800, Kgs, Denmark
| |
Collapse
|
47
|
Ge F, Yu M, Lin J, Yu C, Weng W, Cheng K, Wang H. Mesenchymal stem cells in response to exposed rod-heights of TiO2 nanorod films. RSC Adv 2016. [DOI: 10.1039/c6ra13081j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Cellular responses are strongly sensitive to surface structure, so the optimization of the structures is essential in biomaterial research.
Collapse
Affiliation(s)
- Fei Ge
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Mengfei Yu
- The First Affiliated Hospital of Medical College
- Zhejiang University
- Hangzhou 310003
- China
| | - Jun Lin
- The First Affiliated Hospital of Medical College
- Zhejiang University
- Hangzhou 310003
- China
| | - Cuixia Yu
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Wenjian Weng
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Kui Cheng
- School of Materials Science and Engineering
- State Key Laboratory of Silicon Materials
- Zhejiang University
- Hangzhou 310027
- China
| | - Huiming Wang
- The First Affiliated Hospital of Medical College
- Zhejiang University
- Hangzhou 310003
- China
| |
Collapse
|
48
|
The influence of nanostructured features on bacterial adhesion and bone cell functions on severely shot peened 316L stainless steel. Biomaterials 2015; 73:185-97. [DOI: 10.1016/j.biomaterials.2015.09.019] [Citation(s) in RCA: 171] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 09/07/2015] [Accepted: 09/10/2015] [Indexed: 11/20/2022]
|
49
|
Matykina E, Arrabal R, Valiev R, Molina-Aldareguia J, Belov P, Sabirov I. Electrochemical Anisotropy of Nanostructured Titanium for Biomedical Implants. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.07.128] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
50
|
Matsuno H, Matsuyama R, Yamamoto A, Tanaka K. Enhanced cellular affinity for poly(lactic acid) surfaces modified with titanium oxide. Polym J 2015. [DOI: 10.1038/pj.2015.30] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|