1
|
Ureiro-Cueto G, Rodil SE, Santana-Vázquez M, Hoz-Rodriguez L, Arzate H, Montoya-Ayala G. Characterization of aTiO 2 surfaces functionalized with CAP-p15 peptide. J Biomed Mater Res A 2024; 112:1399-1411. [PMID: 38284510 DOI: 10.1002/jbm.a.37676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/30/2024]
Abstract
Functionalization of Titanium implants using adequate organic molecules is a proposed method to accelerate the osteointegration process, which relates to topographical, chemical, mechanical, and physical features. This study aimed to assess the potential of a peptide derived from cementum attachment protein (CAP-p15) adsorbed onto aTiO2 surfaces to promote the deposition of calcium phosphate (CaP) minerals and its impact on the adhesion and viability of human periodontal ligament cells (hPDLCs). aTiO2 surfaces were synthesized by magnetron sputtering technique. The CAP-p15 peptide was physically attached to aTiO2 surfaces and characterized by atomic force microscopy, fluorescence microscopy, and water contact angle measurement. We performed in vitro calcium phosphate nucleation assays using an artificial saliva solution (pH 7.4) to simulate the oral environment. morphological and chemical characterization of the deposits were evaluated by scanning electronic microscopy (SEM) and spectroscopy molecular techniques (Raman Spectroscopy, ATR-FTIR). The aTiO2 surfaces biofunctionalized with CAP-p15 were also analyzed for hPDLCs attachment, proliferation, and in vitro scratch-healing assay. The results let us see that the homogeneous amorphous titanium oxide coating was 70 nanometers thick. The CAP-p15 (1 μg/mL) displayed the ability to adsorb onto the aTiO2 surface, increasing the roughness and maintaining the hydrophilicity of the aTiO2 surfaces. The physical adsorption of CAP-p15 onto the aTiO2 surfaces promoted the precipitation of a uniform layer of crystals with a flake-like morphology and a Ca/P ratio of 1.79. According to spectroscopy molecular analysis, these crystalline deposits correspond to carbonated hydroxyapatite. Regarding cell behavior, the biofunctionalized aTiO2 surfaces improved the adhesion of hPDLCs after 24 h of cell culture, achieving 3.4-fold when compared to pristine surfaces. Moreover, there was an increase in cell proliferation and cell migration processes. Physical adsorption of CAP-p15 onto aTiO2 surfaces enhanced the formation of carbonate hydroxyapatite crystals and promoted the proliferation and migration of human periodontal ligament-derived cells in in vitro studies. This experimental model using the novel bioactive peptide CAP-p15 could be used as an alternative to increasing the osseointegration process of implants.
Collapse
Affiliation(s)
- Guadalupe Ureiro-Cueto
- Laboratorio de Biología Periodontal y Tejidos Mineralizados, División de Estudios de Posgrado e Investigación Facultad de Odontología, Universidad Nacional Autónoma de, México city, Mexico
| | - Sandra E Rodil
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de, México city, Mexico
| | - Maricela Santana-Vázquez
- Laboratorio de Biología Periodontal y Tejidos Mineralizados, División de Estudios de Posgrado e Investigación Facultad de Odontología, Universidad Nacional Autónoma de, México city, Mexico
| | - Lia Hoz-Rodriguez
- Laboratorio de Biología Periodontal y Tejidos Mineralizados, División de Estudios de Posgrado e Investigación Facultad de Odontología, Universidad Nacional Autónoma de, México city, Mexico
| | - Higinio Arzate
- Laboratorio de Biología Periodontal y Tejidos Mineralizados, División de Estudios de Posgrado e Investigación Facultad de Odontología, Universidad Nacional Autónoma de, México city, Mexico
| | - Gonzalo Montoya-Ayala
- Laboratorio de Biología Periodontal y Tejidos Mineralizados, División de Estudios de Posgrado e Investigación Facultad de Odontología, Universidad Nacional Autónoma de, México city, Mexico
| |
Collapse
|
2
|
Otgonbayar Z, Kim J, Jekal S, Kim CG, Noh J, Oh WC, Yoon CM. Designing a highly near infrared-reflective black nanoparticles for autonomous driving based on the refractive index and principle. J Colloid Interface Sci 2024; 667:663-678. [PMID: 38670010 DOI: 10.1016/j.jcis.2024.04.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/30/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
HYPOTHESIS The development of highly NIR reflective black single-shell hollow nanoparticles (BSS-HNPs) can overcome the Light Detection and Ranging (LiDAR) sensor limitations of dark-tone materials. The crystalline phase of TiO2 and the refractive index can be controlled by calcination temperature. The formation of hollow structure and the refractive index is expected to simultaneously increase the light reflection and LiDAR detectability. EXPERIMENTS The BSS-HNPs are synthesized using the sol-gel method, calcination, NaBH4 reduction, and etching to form a hollow structure with true blackness. The computational bandgap calculation is conducted to determine the bandgap energy (Eg) of the white and black TiO2 with different crystalline structures. The blackness of the as-synthesized materials is determined by the Commission on Illumination (CIE) L*a*b* color system. FINDINGS The hydrophilic nature of BSS-HNPs enables the formulation of hydrophilic paints, allowing the mono-layer coating. With the synergistic effects of hollow structure and the refractive index, BSS-HNPs manifested superb NIR reflectance at LiDAR detection wavelengths. The high detectability, blackness, and hollow structure of BSS-HNPs can expand the variety of LiDAR-detectable dark-tone materials.
Collapse
Affiliation(s)
- Zambaga Otgonbayar
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
| | - Jiwon Kim
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
| | - Suk Jekal
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
| | - Chan-Gyo Kim
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea
| | - Jungchul Noh
- McKetta Department of Chemical Engineering and Texas Material Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Won-Chun Oh
- Department of Advanced Materials Science & Engineering, Hanseo University, 46 Hanseo 1-ro, Seosan-si, Chungnam 356-706, Korea
| | - Chang-Min Yoon
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea.
| |
Collapse
|
3
|
Honda S, Fujibayashi S, Shimizu T, Yamaguchi S, Okuzu Y, Takaoka Y, Masuda S, Takemoto M, Kawai T, Otsuki B, Goto K, Matsuda S. Strontium-loaded 3D intramedullary nail titanium implant for critical-sized femoral defect in rabbits. J Biomed Mater Res B Appl Biomater 2024; 112:e35393. [PMID: 38385959 DOI: 10.1002/jbm.b.35393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 02/01/2024] [Accepted: 02/08/2024] [Indexed: 02/23/2024]
Abstract
The treatment of critical-sized bone defects has long been a major problem for surgeons. In this study, an intramedullary nail shaped three-dimensional (3D)-printed porous titanium implant that is capable of releasing strontium ions was developed through a simple and cost-effective surface modification technique. The feasibility of this implant as a stand-alone solution was evaluated using a rabbit's segmental diaphyseal as a defect model. The strontium-loaded implant exhibited a favorable environment for cell adhesion, and mechanical properties that were commensurate with those of a rabbit's cortical bone. Radiographic, biomechanical, and histological analyses revealed a significantly higher amount of bone ingrowth and superior bone-bonding strength in the strontium-loaded implant when compared to an untreated porous titanium implant. Furthermore, one-year histological observations revealed that the strontium-loaded implant preserved the native-like diaphyseal bone structure without failure. These findings suggest that strontium-releasing 3D-printed titanium implants have the clinical potential to induce the early and efficient repair of critical-sized, load-bearing bone defects.
Collapse
Affiliation(s)
- Shintaro Honda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shunsuke Fujibayashi
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takayoshi Shimizu
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Seiji Yamaguchi
- Department of Biomedical Sciences, College of Life and Health Sciences, Chubu University, Aichi, Japan
| | - Yaichiro Okuzu
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yusuke Takaoka
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Soichiro Masuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Mitsuru Takemoto
- Department of Orthopaedic Surgery, Kyoto City Hospital, Kyoto, Japan
| | - Toshiyuki Kawai
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Bungo Otsuki
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koji Goto
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shuichi Matsuda
- Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| |
Collapse
|
4
|
Wang S, Zhao X, Hsu Y, He Y, Wang F, Yang F, Yan F, Xia D, Liu Y. Surface modification of titanium implants with Mg-containing coatings to promote osseointegration. Acta Biomater 2023; 169:19-44. [PMID: 37517617 DOI: 10.1016/j.actbio.2023.07.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 08/01/2023]
Abstract
Titanium (Ti) and Ti alloys are commonly used in dental implants, which have good biocompatibility, mechanical strength, processability, and corrosion resistance. However, the surface inertia of Ti implants leads to delayed integration of Ti and new bone, as well as problems such as aseptic loosening and inadequate osseointegration. Magnesium (Mg) ions can promote bone regeneration, and many studies have used Mg-containing materials to modify the Ti implant surface. This systematic review summarizes the methods, effects, and clinical applications of surface modification of Ti implants with Mg-containing coatings. Database collection was completed on Janury 1, 2023, and a total of 29 relevant studies were ultimately included. Mg can be compounded with different materials and coated to the surface of Ti implants using different methods. In vitro and in vivo experiments have shown that Mg-containing coatings promote cell adhesion and osteogenic differentiation. On the one hand, the surface roughness of implants increases with the addition of Mg-containing coatings, which is thought to have an impact on the osseointegration of the implant. On the other hand, Mg ions promote cell attachment through binding interactions between the integrin family and FAK-related signaling pathways. And Mg ions could induce osseointegration by activating PI3K, Notch, ERK/c-Fos, BMP-4-related signaling pathways and TRPM7 protein channels. Overall, Mg-based coatings show great potential for the surface modification of Ti implants to promote osseointegration. STATEMENT OF SIGNIFICANCE: The inertia surface of titanium (Ti) implants leads to delayed osseointegration. Magnesium (Mg) ions, known for promoting bone regeneration, have been extensively studied to modify the surface of Ti implants. However, no consensus has been reached on the appropriate processing methods, surface roughness and effective concentration of Mg-containing coatings for osseointegration. This systematic review focus on the surface modification of Ti implants with Mg-containing compounds, highlighting the effects of Mg-containing coatings on the surface properties of Ti implants and its associated mechanisms. Besides, we also provide an outlook on future directions to promote the clinical application of Mg-modified implants.
Collapse
Affiliation(s)
- Siyi Wang
- Department of Prosthodontics, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Research Institute of Stomatology, China
| | - Xiao Zhao
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Yuchien Hsu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Yunjiao He
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Feilong Wang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Fan Yang
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Fanyu Yan
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China
| | - Dandan Xia
- National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China; Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing 100081, China.
| | - Yunsong Liu
- Department of Prosthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China; National Center of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, National Clinical Research Center for Oral Diseases, Beijing Key Laboratory of Digital Stomatology, NMPA Key Laboratory for Dental Materials, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing 100081, China.
| |
Collapse
|
5
|
Jiang P, Zhang Y, Hu R, Shi B, Zhang L, Huang Q, Yang Y, Tang P, Lin C. Advanced surface engineering of titanium materials for biomedical applications: From static modification to dynamic responsive regulation. Bioact Mater 2023; 27:15-57. [PMID: 37035422 PMCID: PMC10074421 DOI: 10.1016/j.bioactmat.2023.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/10/2023] [Accepted: 03/10/2023] [Indexed: 03/29/2023] Open
Abstract
Titanium (Ti) and its alloys have been widely used as orthopedic implants, because of their favorable mechanical properties, corrosion resistance and biocompatibility. Despite their significant success in various clinical applications, the probability of failure, degradation and revision is undesirably high, especially for the patients with low bone density, insufficient quantity of bone or osteoporosis, which renders the studies on surface modification of Ti still active to further improve clinical results. It is discerned that surface physicochemical properties directly influence and even control the dynamic interaction that subsequently determines the success or rejection of orthopedic implants. Therefore, it is crucial to endow bulk materials with specific surface properties of high bioactivity that can be performed by surface modification to realize the osseointegration. This article first reviews surface characteristics of Ti materials and various conventional surface modification techniques involving mechanical, physical and chemical treatments based on the formation mechanism of the modified coatings. Such conventional methods are able to improve bioactivity of Ti implants, but the surfaces with static state cannot respond to the dynamic biological cascades from the living cells and tissues. Hence, beyond traditional static design, dynamic responsive avenues are then emerging. The dynamic stimuli sources for surface functionalization can originate from environmental triggers or physiological triggers. In short, this review surveys recent developments in the surface engineering of Ti materials, with a specific emphasis on advances in static to dynamic functionality, which provides perspectives for improving bioactivity and biocompatibility of Ti implants.
Collapse
|
6
|
Gao J, Ma R, Poovan F, Zhang L, Atia H, Kalevaru NV, Sun W, Wohlrab S, Chusov DA, Wang N, Jagadeesh RV, Beller M. Streamlining the synthesis of amides using Nickel-based nanocatalysts. Nat Commun 2023; 14:5013. [PMID: 37591856 PMCID: PMC10435480 DOI: 10.1038/s41467-023-40614-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 08/03/2023] [Indexed: 08/19/2023] Open
Abstract
The synthesis of amides is a key technology for the preparation of fine and bulk chemicals in industry, as well as the manufacture of a plethora of daily life products. Furthermore, it constitutes a central bond-forming methodology for organic synthesis and provides the basis for the preparation of numerous biomolecules. Here, we present a robust methodology for amide synthesis compared to traditional amidation reactions: the reductive amidation of esters with nitro compounds under additives-free conditions. In the presence of a specific heterogeneous nickel-based catalyst a wide range of amides bearing different functional groups can be selectively prepared in a more step-economy way compared to previous syntheses. The potential value of this protocol is highlighted by the synthesis of drugs, as well as late-stage modifications of bioactive compounds. Based on control experiments, material characterizations, and DFT computations, we suggest metallic nickel and low-valent Ti-species to be crucial factors that makes this direct amide synthesis possible.
Collapse
Affiliation(s)
- Jie Gao
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Rui Ma
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Fairoosa Poovan
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Lan Zhang
- Faculty of Environment and Life, Beijing University of Technology, 100124, Beijing, China
| | - Hanan Atia
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Narayana V Kalevaru
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Wenjing Sun
- Guang-dong Medical University, 523808, Dongguan, China
| | - Sebastian Wohlrab
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany
| | - Denis A Chusov
- A. N. Nesmeyanov Institute of Organoelement Compounds, 119991, Moscow, Russia.
| | - Ning Wang
- Faculty of Environment and Life, Beijing University of Technology, 100124, Beijing, China.
| | - Rajenahally V Jagadeesh
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany.
- Nanotechnology Centre, Centre of Energy and Environmental Technologies, VŠB-Technical University of Ostrava, Ostrava-Poruba, Czech Republic.
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Street 29a, 18059, Rostock, Germany.
| |
Collapse
|
7
|
Yang S, Jiang W, Ma X, Wang Z, Sah RL, Wang J, Sun Y. Nanoscale Morphologies on the Surface of 3D-Printed Titanium Implants for Improved Osseointegration: A Systematic Review of the Literature. Int J Nanomedicine 2023; 18:4171-4191. [PMID: 37525692 PMCID: PMC10387278 DOI: 10.2147/ijn.s409033] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 07/10/2023] [Indexed: 08/02/2023] Open
Abstract
Three-dimensional (3D) printing is serving as the most promising approach to fabricate personalized titanium (Ti) implants for the precise treatment of complex bone defects. However, the bio-inert nature of Ti material limits its capability for rapid osseointegration and thus influences the implant lifetime in vivo. Despite the macroscale porosity for promoting osseointegration, 3D-printed Ti implant surface morphologies at the nanoscale have gained considerable attention for their potential to improve specific outcomes. To evaluate the influence of nanoscale surface morphologies on osseointegration outcomes of 3D-printed Ti implants and discuss the available strategies, we systematically searched evidence according to the PRISMA on PubMed, Embase, Web of Science, and Cochrane (until June 2022). The inclusion criteria were in vivo (animal) studies reporting the osseointegration outcomes of nanoscale morphologies on the surface of 3D-printed Ti implants. The risk of bias (RoB) was assessed using the Systematic Review Centre for Laboratory Animal Experimentation (SYRCLE's) tool. The quality of the studies was evaluated using the Animal Research: Reporting of In Vivo Experiments (ARRIVE) guidelines. (PROSPERO: CRD42022334222). Out of 119 retrieved articles, 9 studies met the inclusion criteria. The evidence suggests that irregular nano-texture, nanodots and nanotubes with a diameter of 40-105nm on the surface of porous/solid 3D-printed Ti implants result in better osseointegration and vertical bone ingrowth compared to the untreated/polished ones by significantly promoting cell adhesion, matrix mineralization, and osteogenic differentiation through increasing integrin expression. The RoB was low in 41.1% of items, unclear in 53.3%, and high in 5.6%. The quality of the studies achieved a mean score of 17.67. Our study demonstrates that nanostructures with specific controlled properties on the surface of 3D-printed Ti implants improve their osseointegration. However, given the small number of studies, the variability in experimental designs, and lack of reporting across studies, the results should be interpreted with caution.
Collapse
Affiliation(s)
- Shiyan Yang
- Orthopedic Medical Center, the Second Hospital of Jilin University, Changchun, Jilin, 130000, People's Republic of China
| | - Weibo Jiang
- Orthopedic Medical Center, the Second Hospital of Jilin University, Changchun, Jilin, 130000, People's Republic of China
| | - Xiao Ma
- Department of Orthopedics, the China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130000, People's Republic of China
| | - Zuobin Wang
- International Research Centre for Nano Handling and Manufacturing of China, Changchun University of Science and Technology, Changchun, Jilin, 130000, People's Republic of China
| | - Robert L Sah
- Department of Bioengineering, University of California-San Diego, La Jolla, CA, 92037, USA
- Center for Musculoskeletal Research, Institute of Engineering in Medicine, University of California-San Diego, La Jolla, CA, 92037, USA
| | - Jincheng Wang
- Orthopedic Medical Center, the Second Hospital of Jilin University, Changchun, Jilin, 130000, People's Republic of China
| | - Yang Sun
- Orthopedic Medical Center, the Second Hospital of Jilin University, Changchun, Jilin, 130000, People's Republic of China
| |
Collapse
|
8
|
Wei LK, Abd Rahim SZ, Al Bakri Abdullah MM, Yin ATM, Ghazali MF, Omar MF, Nemeș O, Sandu AV, Vizureanu P, Abdellah AEH. Producing Metal Powder from Machining Chips Using Ball Milling Process: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4635. [PMID: 37444950 DOI: 10.3390/ma16134635] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/20/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023]
Abstract
In the pursuit of achieving zero emissions, exploring the concept of recycling metal waste from industries and workshops (i.e., waste-free) is essential. This is because metal recycling not only helps conserve natural resources but also requires less energy as compared to the production of new products from virgin raw materials. The use of metal scrap in rapid tooling (RT) for injection molding is an interesting and viable approach. Recycling methods enable the recovery of valuable metal powders from various sources, such as electronic, industrial, and automobile scrap. Mechanical alloying is a potential opportunity for sustainable powder production as it has the capability to convert various starting materials with different initial sizes into powder particles through the ball milling process. Nevertheless, parameter factors, such as the type of ball milling, ball-to-powder ratio (BPR), rotation speed, grinding period, size and shape of the milling media, and process control agent (PCA), can influence the quality and characteristics of the metal powders produced. Despite potential drawbacks and environmental impacts, this process can still be a valuable method for recycling metals into powders. Further research is required to optimize the process. Furthermore, ball milling has been widely used in various industries, including recycling and metal mold production, to improve product properties in an environmentally friendly way. This review found that ball milling is the best tool for reducing the particle size of recycled metal chips and creating new metal powders to enhance mechanical properties and novelty for mold additive manufacturing (MAM) applications. Therefore, it is necessary to conduct further research on various parameters associated with ball milling to optimize the process of converting recycled copper chips into powder. This research will assist in attaining the highest level of efficiency and effectiveness in particle size reduction and powder quality. Lastly, this review also presents potential avenues for future research by exploring the application of RT in the ball milling technique.
Collapse
Affiliation(s)
- Leong Kean Wei
- Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis, Arau 02600, Malaysia
| | - Shayfull Zamree Abd Rahim
- Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis, Arau 02600, Malaysia
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Mohd Mustafa Al Bakri Abdullah
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Kangar 01000, Malaysia
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Allice Tan Mun Yin
- Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis, Arau 02600, Malaysia
| | - Mohd Fathullah Ghazali
- Faculty of Mechanical Engineering & Technology, Universiti Malaysia Perlis, Arau 02600, Malaysia
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Mohd Firdaus Omar
- Center of Excellence Geopolymer and Green Technology (CEGeoGTech), Universiti Malaysia Perlis, Kangar 01000, Malaysia
- Faculty of Chemical Engineering & Technology, Universiti Malaysia Perlis, Kangar 01000, Malaysia
| | - Ovidiu Nemeș
- Department of Environmental Engineering and Sustainable Development Entrepreneurship, Faculty of Materials and Environmental Engineering, Technical University of Cluj-Napoca, B-dul Muncii 103-105, 400641 Cluj-Napoca, Romania
| | - Andrei Victor Sandu
- Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, Blvd. D. Mangeron 71, 700050 Iasi, Romania
- Romanian Inventors Forum, Str. Sf. P. Movila 3, 700089 Iasi, Romania
| | - Petrica Vizureanu
- Faculty of Materials Science and Engineering, Gheorghe Asachi Technical University of Iasi, Blvd. D. Mangeron 71, 700050 Iasi, Romania
- Technical Sciences Academy of Romania, Dacia Blvd 26, 030167 Bucharest, Romania
| | - Abdellah El-Hadj Abdellah
- Laboratory of Mechanics, Physics and Mathematical Modelling (LMP2M), University of Medea, Medea 26000, Algeria
| |
Collapse
|
9
|
Babadjanov F, Specht U, Lukasczyk T, Mayer B. Heat Accumulation-Induced Surface Structures at High Degrees of Laser Pulse Overlap on Ti6Al4V Surfaces by Femtosecond Laser Texturing. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2498. [PMID: 36984383 PMCID: PMC10059092 DOI: 10.3390/ma16062498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 06/18/2023]
Abstract
In this work, femtosecond laser pulses at high repetition rates were used to fabricate unique microstructures on the surface of Ti6Al4V. We investigated the influence of pulse overlap and laser repetition rates on structure formation. Laser texturing with a high degree of overlap resulted in melting of the material, leading to the formation of specific microstructures that can be used as cavities for drug delivery. The reason for melt formation is attributed to local heat accumulation at high repetition rates. Such structures can be fabricated on materials with low thermal conductivity, which prevent heat dissipation into the bulk of the material. The heat accumulation effect has also been demonstrated on steel, which also has low thermal conductivity.
Collapse
Affiliation(s)
- Farkhod Babadjanov
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, Germany
| | - Uwe Specht
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, Germany
| | - Thomas Lukasczyk
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, Germany
| | - Bernd Mayer
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Str. 12, 28359 Bremen, Germany
- Faculty of Production Engineering, University of Bremen, 28359 Bremen, Germany
| |
Collapse
|
10
|
Kobayashi Y, Yokoyama S, Shoji R. Molten salt synthesis of CrMnFeNi alloy nanopowder passivated by TiO x–ZrO y shell used as a superior catalyst support in liquid-phase hydrogenation †. RSC Adv 2023; 13:10790-10799. [PMID: 37033426 PMCID: PMC10074232 DOI: 10.1039/d3ra01797d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 03/21/2023] [Indexed: 04/07/2023] Open
Abstract
A molten salt method was used to prepare CrMnFeNi alloy nanopowder passivated by TiOx–ZrOy surface shell with a high specific surface area (23 m2 g−1) from the oxide precursors. Analyses by scanning electron microscopy/transmission electron microscopy with energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy revealed the formation of an alloyed Cr–Mn–Fe–Ni-rich core surrounded by an oxide surface shell with a Ti/Zr-rich composition, confirming the formation of TiOx–ZrOy/CrMnFeNi nanopowder. It was speculated that the CrMnFeNi alloy nanoparticles were preferentially formed from the constituent metals by a faster reduction of any oxides of Cr, Mn, Fe, and Ni and a subsequent alloying with Ti and Zr could hardly occur due to the high thermodynamic stability of CrMnFeNi alloy. A Ni-loaded TiOx–ZrOy/CrMnFeNi catalyst exhibited superior catalytic performance to common Ni-loaded TiO2 and ZrO2 in the liquid-phase hydrogenation of p-nitrophenol at room temperature. The enhancement could have originated from an excellent electrical property of CrMnFeNi alloy, promoting the formation of active metallic nickel on the surface during the reaction. Leaching amounts of the constituent elements of Ti–Zr–Cr–Mn–Fe–Ni and loaded Ni was very little in the reaction solution after the reaction; the results confirmed that the prepared CrMnFeNi alloy nanopowder was very stable due to the protection of the Ti/Zr-rich oxide shell. Thus, the potential application of the alloyed powder used as catalyst support was demonstrated. The enhancement of liquid-phase hydrogenation by NaBH4 over Ni-loaded CrMnFeNi alloy nanoparticles passivated by TiOx–ZrOy.![]()
Collapse
Affiliation(s)
- Yasukazu Kobayashi
- Renewable Energy Research Centre, National Institute of Advanced Industrial Science and Technology2-2-9 Machiikedai, KoriyamaFukushima 963-0298Japan
| | - Shota Yokoyama
- Department of Chemical Science and Engineering, National Institute of Technology, Tokyo College1220-2 Kunugida, HachiojiTokyo 193-0997Japan
| | - Ryo Shoji
- Department of Chemical Science and Engineering, National Institute of Technology, Tokyo College1220-2 Kunugida, HachiojiTokyo 193-0997Japan
| |
Collapse
|
11
|
Osseointegration Properties of Titanium Implants Treated by Nonthermal Atmospheric-Pressure Nitrogen Plasma. Int J Mol Sci 2022; 23:ijms232315420. [PMID: 36499747 PMCID: PMC9740438 DOI: 10.3390/ijms232315420] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/01/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Pure titanium is used in dental implants owing to its excellent biocompatibility and physical properties. However, the aging of the material during storage is detrimental to the long-term stability of the implant after implantation. Therefore, in this study, we attempted to improve the surface properties and circumvent the negative effects of material aging on titanium implants by using a portable handheld nonthermal plasma device capable of piezoelectric direct discharge to treat pure titanium discs with nitrogen gas. We evaluated the osteogenic properties of the treated samples by surface morphology and elemental analyses, as well as in vitro and in vivo experiments. The results showed that nonthermal atmospheric-pressure nitrogen plasma can improve the hydrophilicity of pure titanium without damaging its surface morphology while introducing nitrogen-containing functional groups, thereby promoting cell attachment, proliferation, and osseointegration to some extent. Therefore, nitrogen plasma treatment may be a promising method for the rapid surface treatment of titanium implants.
Collapse
|
12
|
High Performance of Titanium Dioxide Reinforced Acrylonitrile Butadiene Rubber Composites. Polymers (Basel) 2022; 14:polym14235267. [PMID: 36501661 PMCID: PMC9739959 DOI: 10.3390/polym14235267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/25/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
Recently, dielectric elastomer actuators (DEA) have emerged as one of the most promising materials for use in soft robots. However, DEA needs a high operating voltage and high mechanical properties. By increasing the dielectric constant of elastomeric materials, it is possible to decrease the operating voltage required. Thus, elastomeric composites with a high dielectric constant and strong mechanical properties are of interest. The aim of this research was to investigate the effect of titanium dioxide (TiO2) content ranging from 0 to 110 phr on the cure characteristics, and physical, dielectric, dynamic mechanical, and morphological properties of acrylonitrile butadiene rubber (NBR) composites. The addition of TiO2 reduced the scorch time (ts1) as well as the optimum cure time (tc90) but increased the cure rate index (CRI), minimum torque (ML), maximum torque (MH), and delta torque (MH - ML). The optimal TiO2 content for maximum tensile strength and elongation at break was 90 phr. Tensile strength and elongation at break were increased by 144.8% and 40.1%, respectively, over pure NBR. A significant mechanical property improvement was observed for TiO2-filled composites due to the good dispersion of TiO2 in the NBR matrix, which was confirmed by scanning electron microscopy (SEM). Moreover, incorporating TiO2 filler gave a higher storage modulus, a shift in glass transition temperature (Tg) to a higher temperature, and reduced damping in dynamic mechanical thermal analysis (DMTA). The addition of TiO2 to NBR rubber increased the dielectric constant of the resultant composites in the tested frequency range from 102 to 105 Hz. As a result, TiO2-filled NBR composite has a high potential for dielectric elastomer actuator applications.
Collapse
|
13
|
Li G, Yang L, Wu G, Qian Z, Li H. An update of interbody cages for spine fusion surgeries: from shape design to materials. Expert Rev Med Devices 2022; 19:977-989. [PMID: 36617696 DOI: 10.1080/17434440.2022.2165912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
INTRODUCTION Discectomy and interbody fusion are widely used in the treatment of intervertebral disc-related diseases. Among them, the interbody cage plays a significant role. However, the complications related to the interbody cage, such as nonunion or pseudoarthrosis, subsidence, loosening, and prolapse of the cage, cannot be ignored. By changing the design and material of the interbody fusion cage, a better fusion effect can be obtained, the incidence of appeal complications can be reduced, and the quality of life of patients after interbody fusion can be improved. AREAS COVERED This study reviewed the research progress of cage design and material and discussed the methods of cage design and material to promote intervertebral fusion. EXPERT OPINION Current treatment of cervical and lumbar degenerative disease requires interbody fusion to maintain decompression and to promote fusion and reduce the incidence of fusion failure through improvements in implant material, design, internal structure, and function. However, interbody fusion is not an optimal solution for treating vertebral instability.Abbreviations: ACDF, Anterior cervical discectomy and fusion; ALIF, anterior lumbar interbody fusion; Axi-aLIF, axial lumbar interbody fusion; BAK fusion cage, Bagby and Kuslich fusion cage; CADR, cervical artificial disc replacement; DBM, decalcified bone matrix; HA, hydroxyapatite; LLIF/XLIF, lateral or extreme lateral interbody fusion; MIS-TLIF, minimally invasive transforaminal lumbar interbody fusion; OLIF/ATP, oblique lumbar interbody fusion/anterior to psoas; PEEK, Poly-ether-ether-ketone; PLIF, posterior lumbar interbody fusion; ROI-C, Zero-profile Anchored Spacer; ROM, range of motion; SLM, selective melting forming; TLIF, transforaminal lumbar interbody fusion or.
Collapse
Affiliation(s)
- Guangshen Li
- Nantong University Medical School, 226000, Nantong, Jiangsu, China.,Department of Orthopedics, Hospital Affiliated 5 to Nantong University, Taizhou People's Hospital, 225300, Taizhou, China.,Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Lei Yang
- Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Gang Wu
- Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China
| | - Zhanyang Qian
- School of Medicine, Southeast University, Nanjing, China; Spine Center, Zhongda Hospital of Southeast University, Nanjing, China
| | - Haijun Li
- Nantong University Medical School, 226000, Nantong, Jiangsu, China.,Department of Orthopedics, Hospital Affiliated 5 to Nantong University, Taizhou People's Hospital, 225300, Taizhou, China.,Department of Orthopedics, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou, China.,Taizhou School of Clinical Medicine, Nanjing Medical University, Taizhou, Jiangsu, China
| |
Collapse
|
14
|
Kobayashi Y, Yokoyama S, Shoji R. Molten Salt Synthesis of Intermetallic Compound TiNi Nanopowder Passivated by TiO x Shell Prepared from NiTiO 3 for Catalytic Hydrogenation. MATERIALS (BASEL, SWITZERLAND) 2022; 15:8536. [PMID: 36500032 PMCID: PMC9736321 DOI: 10.3390/ma15238536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/23/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Titanium-nickel alloy is an attractive material due to its unique properties of shape memory effect, superior elasticity, and biocompatibility. Generally, Ti-Ni alloy powders are prepared from pure elemental powders of Ti and Ni as starting materials, but it is an energy-intensive process to obtain pure titanium. In this study, intermetallic compound TiNi powder passivated by TiOx shell was prepared by directly reducing a commercial NiTiO3 using CaH2 reducing agent in a molten LiCl at 650 °C. Analyses by X-ray diffraction, scanning electron microscopy/transmission electron microscopy with energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy revealed that the powder had a core-shell structure, with the core of TiNi and the shell of TiOx-rich composition with scarce metallic Ni nicely catalyzing hydrogenation reactions with good recyclability and stability.
Collapse
Affiliation(s)
- Yasukazu Kobayashi
- Renewable Energy Research Centre, National Institute of Advanced Industrial Science and Technology, 2-2-9 Machiikedai, Koriyama 963-0298, Japan
| | - Shota Yokoyama
- Department of Chemical Science and Engineering, National Institute of Technology, Tokyo College, 1220-2 Kunugida, Hachioji 193-0997, Japan
| | - Ryo Shoji
- Department of Chemical Science and Engineering, National Institute of Technology, Tokyo College, 1220-2 Kunugida, Hachioji 193-0997, Japan
| |
Collapse
|
15
|
Stoukatch S, Dupont F, Redouté JM. Device Processing Challenges for Miniaturized Sensing Systems Targeting Biological Fluids. BIOMEDICAL MATERIALS & DEVICES 2022. [PMCID: PMC9510362 DOI: 10.1007/s44174-022-00034-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 09/02/2022] [Indexed: 09/29/2023]
Abstract
This article presents a review of device processing technologies used in the fabrication of biomedical systems, and highlights the requirements of advanced manufacturing technology. We focus on biomedical systems that perform diagnostics of fluidic specimens, with analytes that are in the liquid phase. In the introduction, we define biomedical systems as well as their versatile applications and the essential current trends. The paper gives an overview of the most important biomolecules that typically must be detected or analyzed in several applications. The paper is structured as follows. First, the conventional architecture and construction of a biosensing system is introduced. We provide an overview of the most common biosensing methods that are currently used for the detection of biomolecules and its analysis. We present an overview of reported biochips, and explain the technology of biofunctionalization and detection principles, including their corresponding advantages and disadvantages. Next, we introduce microfluidics as a method for delivery of the specimen to the biochip sensing area. A special focus lies on material requirements and on manufacturing technology for fabricating microfluidic systems, both for niche and mass-scale production segments. We formulate requirements and constraints for integrating the biochips and microfluidic systems. The possible impacts of the conventional microassembly techniques and processing methods on the entire biomedical system and its specific parts are also described. On that basis, we explain the need for alternative microassembly technologies to enable the integration of biochips and microfluidic systems into fully functional systems.
Collapse
Affiliation(s)
- S. Stoukatch
- Microsys Lab, Department of Electrical Engineering and Computer Science, Liege University, Seraing, Belgium
| | - F. Dupont
- Microsys Lab, Department of Electrical Engineering and Computer Science, Liege University, Seraing, Belgium
| | - J.-M. Redouté
- Microsys Lab, Department of Electrical Engineering and Computer Science, Liege University, Seraing, Belgium
| |
Collapse
|
16
|
Diagnostic tests for titanium hypersensitivity in implant dentistry: a systematic review of the literature. Int J Implant Dent 2022; 8:29. [PMID: 35819566 PMCID: PMC9276909 DOI: 10.1186/s40729-022-00428-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 06/30/2022] [Indexed: 01/10/2023] Open
Abstract
PURPOSE There are rising concerns about titanium hypersensitivity reaction regarding dental endosseous implants. This review aims to summarize and compare the validity and reliability of the available dermatological and laboratory diagnostic tests regarding titanium hypersensitivity. The following PICO design was used: In Patients with titanium dental implants (P) does epicutaneous testing (ECT) (I), compared to lymphocyte transformation test (LTT) or Memory Lymphocyte Immunostimulation Assay (MELISA) (C) detect hypersensitivity reactions (O)? A literature search was performed including all studies dealing with this topic. Studies regarding orthopedic implants were excluded. METHODS Three databases (MEDLINE PubMed, Cochrane Library, SciELO) were screened for suitable studies and an additional manual search was also performed. Literature regarding hypersensitivity reactions in orthopedic implants, hypersensitivity reactions regarding implants not related to dental or maxillofacial surgery, animal studies and in vitro studies were excluded. A quality assessment of all selected full-text articles was performed. Randomized, controlled trials were evaluated with the Cochrane Risk of Bias Tool I. Cohort studies were assessed according to the New Castle-Ottawa Scale and case series according to Moga et al. (Development of a quality appraisal tool for case series studies using a modified Delphi technique. 2012). RESULTS 10 studies were included in the quantitative synthesis and available for the endpoint diagnostics of intolerance reactions to titanium dental implants: 2 clinical studies, 7 cohort studies and 1 case series. The potential for bias (internal validity) for these studies was overall rated as high. CONCLUSIONS The study of the available literature regarding ECT and MELISA or LTT in patients with suspected titanium hypersensitivity showed inconsistent results in terms of reliability and validity and thus, those tests should be regarded cautiously. There is strong evidence that titanium hypersensitivity in dental implants is associated with innate immunity: unspecific pro-inflammatory responses due to particle induced hyperreactivity of macrophages or toxicological responses especially towards nanoparticles rather than activation of the adaptive immune system. Therefore, tests detecting allergies do not seem expedient and inflammatory clinical signs should be regarded as leading parameters.
Collapse
|
17
|
Silva RCS, Agrelli A, Andrade AN, Mendes-Marques CL, Arruda IRS, Santos LRL, Vasconcelos NF, Machado G. Titanium Dental Implants: An Overview of Applied Nanobiotechnology to Improve Biocompatibility and Prevent Infections. MATERIALS (BASEL, SWITZERLAND) 2022; 15:3150. [PMID: 35591484 PMCID: PMC9104688 DOI: 10.3390/ma15093150] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 02/06/2023]
Abstract
This review addresses the different aspects of the use of titanium and its alloys in the production of dental implants, the most common causes of implant failures and the development of improved surfaces capable of stimulating osseointegration and guaranteeing the long-term success of dental implants. Titanium is the main material for the development of dental implants; despite this, different surface modifications are studied aiming to improve the osseointegration process. Nanoscale modifications and the bioactivation of surfaces with biological molecules can promote faster healing when compared to smooth surfaces. Recent studies have also pointed out that gradual changes in the implant, based on the microenvironment of insertion, are factors that may improve the integration of the implant with soft and bone tissues, preventing infections and osseointegration failures. In this context, the understanding that nanobiotechnological surface modifications in titanium dental implants improve the osseointegration process arouses interest in the development of new strategies, which is a highly relevant factor in the production of improved dental materials.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Giovanna Machado
- Centro de Tecnologias Estratégicas do Nordeste-Cetene, Av. Prof. Luiz Freire, 01, Cidade Universitária, Recife CEP 50740-545, PE, Brazil; (R.C.S.S.); (A.A.); (A.N.A.); (C.L.M.-M.); (I.R.S.A.); (L.R.L.S.); (N.F.V.)
| |
Collapse
|
18
|
Dias LFG, Rheinheimer JPC, Gomes OP, Noeske M, Stamboroski S, Bronze‐Uhle ES, Mainardi MC, Cavalcanti WL, Neto AB, Lisboa‐Filho PN. Bisphosphonates on Smooth TiO
2
: Modeling and Characterization. ChemistrySelect 2022. [DOI: 10.1002/slct.202200286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Leonardo F. G. Dias
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 28359 Bremen Germany
- São Paulo State University - UNESP School of Science Av. Eng. Luís Edmundo Carrijo Coube, 14–01 – Nucleo Res. Pres. Geisel Bauru SP 17033-360 Brazil
| | - João P. C. Rheinheimer
- São Paulo State University - UNESP School of Science Av. Eng. Luís Edmundo Carrijo Coube, 14–01 – Nucleo Res. Pres. Geisel Bauru SP 17033-360 Brazil
| | - Orisson P. Gomes
- São Paulo State University - UNESP School of Science Av. Eng. Luís Edmundo Carrijo Coube, 14–01 – Nucleo Res. Pres. Geisel Bauru SP 17033-360 Brazil
| | - Michael Noeske
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 28359 Bremen Germany
| | - Stephani Stamboroski
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 28359 Bremen Germany
- University of Bremen Otto-Hahn-Allee 1 28359 Bremen Germany
| | - Erika S. Bronze‐Uhle
- Bauru School of Dentistry Sao Paulo University – USP Alameda Dr. Octávio Pinheiro Brisolla, 9–75 – Vila Regina Bauru SP 17012-230 Brazil
| | - Maria C. Mainardi
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 28359 Bremen Germany
| | - Welchy L. Cavalcanti
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM Wiener Straße 28359 Bremen Germany
| | - Augusto B. Neto
- Sao Paulo State University - UNESP Campus of Itapeva Itapeva SP Brazil R. da Pátria, 519 - Vila Nossa Sra. de Fatima, Itapeva – SP 18409-010
| | - Paulo N. Lisboa‐Filho
- São Paulo State University - UNESP School of Science Av. Eng. Luís Edmundo Carrijo Coube, 14–01 – Nucleo Res. Pres. Geisel Bauru SP 17033-360 Brazil
| |
Collapse
|
19
|
Gomes OP, Rheinheimer JPC, Dias LFG, Batagin-Neto A, Lisboa-Filho PN. Revisiting the hydroxylation phenomenon of SiO 2: a study through "hard-hard" and "soft-soft" interactions. J Mol Model 2022; 28:115. [PMID: 35391628 DOI: 10.1007/s00894-022-05107-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 03/31/2022] [Indexed: 11/29/2022]
Abstract
Surface hydroxylation has been extensively studied over the years for a variety of applications, and studies involving hydroxylation of different silica surfaces are still carried out due to the interesting properties obtained from those modified surfaces. Although a number of theoretical studies have been employed to evaluate details on the hydroxylation phenomenon on silica (SiO2) surfaces, most of these studies are based on computationally expensive models commonly based on extended systems. In order to circumvent such an aspect, here we present a low-cost theoretical study on the SiO2 hydroxylation process aiming to evaluate aspects associated with water-SiO2 interaction. Details about local reactivity, chemical softness, and electrostatic potential were evaluated for SiO2 model substrates in the framework of the density functional theory (DFT) using a molecular approach. The obtained results from this new and promising approach were validated and complemented by fully atomistic reactive molecular dynamics (FARMD) simulations. Furthermore, the implemented approach proves to be a powerful tool that is not restricted to the study of hydroxylation, opening a promising route for low computational cost to analyze passivation and anchoring processes on a variety of oxide surfaces.
Collapse
Affiliation(s)
- Orisson P Gomes
- School of Sciences, São Paulo State University (UNESP), POSMAT, Bauru, SP, 17033-360, Brazil.
| | - João P C Rheinheimer
- Department of Physics, School of Sciences, São Paulo State University (UNESP), Bauru, SP, 17033-360, Brazil
| | - Leonardo F G Dias
- School of Sciences, São Paulo State University (UNESP), POSMAT, Bauru, SP, 17033-360, Brazil
| | - Augusto Batagin-Neto
- School of Sciences, São Paulo State University (UNESP), POSMAT, Bauru, SP, 17033-360, Brazil.,São Paulo State University (UNESP), Campus of Itapeva, Itapeva, SP, 18409-010, Brazil
| | - Paulo N Lisboa-Filho
- School of Sciences, São Paulo State University (UNESP), POSMAT, Bauru, SP, 17033-360, Brazil.,Department of Physics, School of Sciences, São Paulo State University (UNESP), Bauru, SP, 17033-360, Brazil
| |
Collapse
|
20
|
Study of Electrochemical and Biological Characteristics of As-Cast Ti-Nb-Zr-Ta System Based on Its Microstructure. METALS 2022. [DOI: 10.3390/met12030476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The quaternary Ti-Nb-Zr-Ta (TNZT) alloy was successfully cast-fabricated with the objective to be used in the medical field. Samples’ microstructure was compared to CP-Ti and Ti-6Al-4V (control samples) and related to corrosion, ion release and biological properties. As-cast TNZT was formed with large β grain sizes (285 µm) compared to the ultrafine α grain sizes of CP-Ti (11 µm) and the α + β ultrafine grain sizes of 1.45 µm and 0.74 µm. Hardness and flexural elastic moduli (94 HV and 43 GPa) came close to the biological structures, such as dentin and enamel values. The ion release mechanism of as-cast TNZT was significantly lesser than CP-Ti and Ti-6Al-4V, which can be related to the difference in samples’ grain sizes and chemical compositions. However, the corrosion rate was higher than for the control samples; this way offers corrosion properties inferior with respect to the properties obtained in the reference materials. Biological assays demonstrated that the two-cell (hDPSCs and MG-63) lineage studied presented good adhesion and capability to differentiate in bone cells on the as-cast TNZT surface, and no cytotoxicity effects were found. Details and reasons based on samples’ microstructure are discussed.
Collapse
|
21
|
Stich T, Alagboso F, Křenek T, Kovářík T, Alt V, Docheva D. Implant-bone-interface: Reviewing the impact of titanium surface modifications on osteogenic processes in vitro and in vivo. Bioeng Transl Med 2022; 7:e10239. [PMID: 35079626 PMCID: PMC8780039 DOI: 10.1002/btm2.10239] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 12/12/2022] Open
Abstract
Titanium is commonly and successfully used in dental and orthopedic implants. However, patients still have to face the risk of implant failure due to various reasons, such as implant loosening or infection. The risk of implant loosening can be countered by optimizing the osteointegration capacity of implant materials. Implant surface modifications for structuring, roughening and biological activation in favor for osteogenic differentiation have been vastly studied. A key factor for a successful stable long-term integration is the initial cellular response to the implant material. Hence, cell-material interactions, which are dependent on the surface parameters, need to be considered in the implant design. Therefore, this review starts with an introduction to the basics of cell-material interactions as well as common surface modification techniques. Afterwards, recent research on the impact of osteogenic processes in vitro and vivo provoked by various surface modifications is reviewed and discussed, in order to give an update on currently applied and developing implant modification techniques for enhancing osteointegration.
Collapse
Affiliation(s)
- Theresia Stich
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
| | - Francisca Alagboso
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
| | - Tomáš Křenek
- New Technologies Research CentreUniversity of West BohemiaPilsenCzech Republic
| | - Tomáš Kovářík
- New Technologies Research CentreUniversity of West BohemiaPilsenCzech Republic
| | - Volker Alt
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
- Clinic and Polyclinic for Trauma Surgery, University Regensburg Medical CentreRegensburgGermany
| | - Denitsa Docheva
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
| |
Collapse
|
22
|
Sánchez-Bodón J, Andrade del Olmo J, Alonso JM, Moreno-Benítez I, Vilas-Vilela JL, Pérez-Álvarez L. Bioactive Coatings on Titanium: A Review on Hydroxylation, Self-Assembled Monolayers (SAMs) and Surface Modification Strategies. Polymers (Basel) 2021; 14:165. [PMID: 35012187 PMCID: PMC8747097 DOI: 10.3390/polym14010165] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 12/15/2022] Open
Abstract
Titanium (Ti) and its alloys have been demonstrated over the last decades to play an important role as inert materials in the field of orthopedic and dental implants. Nevertheless, with the widespread use of Ti, implant-associated rejection issues have arisen. To overcome these problems, antibacterial properties, fast and adequate osseointegration and long-term stability are essential features. Indeed, surface modification is currently presented as a versatile strategy for developing Ti coatings with all these challenging requirements and achieve a successful performance of the implant. Numerous approaches have been investigated to obtain stable and well-organized Ti coatings that promote the tailoring of surface chemical functionalization regardless of the geometry and shape of the implant. However, among all the approaches available in the literature to functionalize the Ti surface, a promising strategy is the combination of surface pre-activation treatments typically followed by the development of intermediate anchoring layers (self-assembled monolayers, SAMs) that serve as the supporting linkage of a final active layer. Therefore, this paper aims to review the latest approaches in the biomedical area to obtain bioactive coatings onto Ti surfaces with a special focus on (i) the most employed methods for Ti surface hydroxylation, (ii) SAMs-mediated active coatings development, and (iii) the latest advances in active agent immobilization and polymeric coatings for controlled release on Ti surfaces.
Collapse
Affiliation(s)
- Julia Sánchez-Bodón
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain; (J.S.-B.); (J.A.d.O.); (I.M.-B.); (J.L.V.-V.)
| | - Jon Andrade del Olmo
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain; (J.S.-B.); (J.A.d.O.); (I.M.-B.); (J.L.V.-V.)
- i+Med S. Coop, Parque Tecnológico de Alava, Albert Einstein 15, Nave 15, 01510 Vitoria-Gasteiz, Spain;
| | - Jose María Alonso
- i+Med S. Coop, Parque Tecnológico de Alava, Albert Einstein 15, Nave 15, 01510 Vitoria-Gasteiz, Spain;
| | - Isabel Moreno-Benítez
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain; (J.S.-B.); (J.A.d.O.); (I.M.-B.); (J.L.V.-V.)
| | - José Luis Vilas-Vilela
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain; (J.S.-B.); (J.A.d.O.); (I.M.-B.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leyre Pérez-Álvarez
- Grupo de Química Macromolecular (LABQUIMAC), Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco UPV/EHU, 48940 Leioa, Spain; (J.S.-B.); (J.A.d.O.); (I.M.-B.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
23
|
Ren Y, Qin X, Barbeck M, Hou Y, Xu H, Liu L, Liu C. Mussel-Inspired Carboxymethyl Chitosan Hydrogel Coating of Titanium Alloy with Antibacterial and Bioactive Properties. MATERIALS 2021; 14:ma14226901. [PMID: 34832302 PMCID: PMC8624938 DOI: 10.3390/ma14226901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/02/2021] [Accepted: 11/10/2021] [Indexed: 11/16/2022]
Abstract
Infection-related titanium implant failure rates remain exceedingly high in the clinic. Functional surface coating represents a very promising strategy to improve the antibacterial and bioactive properties of titanium alloy implants. Here, we describe a novel bioactive surface coating that consists of a mussel-inspired carboxymethyl chitosan hydrogel loaded with silver nanoparticles (AgNPs) to enhance the bioactive properties of the titanium alloy. The preparation of hydrogel is based on gallic acid grafted carboxymethyl chitosan (CMCS-GA) catalyzed by DMTMM (4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride). To build a firm bonding between the hydrogel and titanium alloy plate, a polydopamine layer was introduced onto the surface of the titanium alloy. With HRP/H2O2 catalysis, CMCS-GA can simply form a firm gel layer on the titanium alloy plate through the catechol groups. The surface properties of titanium alloy were characterized by scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS), and water contact angle. Silver nanoparticles were loaded into the gel layer by in situ reduction to enhance the antibacterial properties. In vitro antibacterial and cell viability experiments showed that the AgNPs-loaded Ti-gel possesses excellent antibacterial properties and did not affect the proliferation of rabbit mesenchymal stem cells (MSCs).
Collapse
Affiliation(s)
- Yanru Ren
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
- Institute of Material Science and Technology, Technical University of Berlin, Hardenbergstrasse 40, Sekr. BA3, 10623 Berlin, Germany;
| | - Xiaoyan Qin
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
| | - Mike Barbeck
- Institute of Material Science and Technology, Technical University of Berlin, Hardenbergstrasse 40, Sekr. BA3, 10623 Berlin, Germany;
| | - Yi Hou
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
| | - Haijun Xu
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
| | - Luo Liu
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
- Correspondence: (L.L.); (C.L.)
| | - Chaoyong Liu
- Beijing Bioprocess Key Laboratory, Beijing University of Chemical Technology, Beijing 100029, China; (Y.R.); (X.Q.); (Y.H.); (H.X.)
- Correspondence: (L.L.); (C.L.)
| |
Collapse
|
24
|
Kobayashi Y, Tada S, Mizoguchi H. Chemical route to prepare nickel supported on intermetallic Ti 6Si 7Ni 16 nanoparticles catalyzing CO methanation. NANOSCALE 2021; 13:16533-16542. [PMID: 34505852 DOI: 10.1039/d1nr03102c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, ternary intermetallic nickel silicide, Ti6Si7Ni16, nanoparticles with a high surface area of 37.5 m2 g-1 were chemically prepared from SiO2-impregnated oxide precursors, which were reduced at as low as 600 °C by a CaH2 reducing agent in molten LiCl, resulting in the formation of single-phase Ti6Si7Ni16 with a nanosized morphology. The intermetallic Ti6Si7Ni16 phase in the nanoparticles was stabilized in air by surface passive oxide layers of TiOx-SiOy, which facilitated the handling of the nanoparticles. Considering our previous successful work of preparing single-phase LaNi2Si2 (39.3 m2 g-1) and YNi2Si2 (27.0 m2 g-1) nanoparticles in a similar manner, the proposed chemical method showed to be a versatile approach in preparing ternary silicide nanoparticles. In this study, we applied the obtained Ti6Si7Ni16 nanoparticles as catalyst supports in CO methanation. The supported nickel catalyst showed an activation energy of 56 kJ mol-1, which is half as low as that of common TiO2-supported nickel catalysts. Also, Ni/Ti6Si7Ni16 provided the lower activation energy more than any previous Ni-based catalyst. Since the measured work function of Ti6Si7Ni16 (4.5 eV) was lower than that of nickel (5.15 eV), it was suggested that the Ti6Si7Ni16 support can accelerate the rate-determining step of C-O bond dissociation in CO methanation due to its good electron donation capacity.
Collapse
Affiliation(s)
- Yasukazu Kobayashi
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan.
| | - Shohei Tada
- Department of Materials Science and Engineering, Ibaraki University, 4-12-1 Nakanarusawacho, Hitachi, Ibaraki 316-8511, Japan
| | - Hiroshi Mizoguchi
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Tsukuba, Ibaraki 305-0044, Japan
| |
Collapse
|
25
|
Hsu SM, Fares C, Xia X, Rasel MAJ, Ketter J, Afonso Camargo SE, Haque MA, Ren F, Esquivel-Upshaw JF. In Vitro Corrosion of SiC-Coated Anodized Ti Nano-Tubular Surfaces. J Funct Biomater 2021; 12:52. [PMID: 34564201 PMCID: PMC8482235 DOI: 10.3390/jfb12030052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/01/2021] [Accepted: 09/12/2021] [Indexed: 11/16/2022] Open
Abstract
Peri-implantitis leads to implant failure and decreases long-term survival and success rates of implant-supported prostheses. The pathogenesis of this disease is complex but implant corrosion is believed to be one of the many factors which contributes to progression of this disease. A nanostructured titanium dioxide layer was introduced using anodization to improve the functionality of dental implants. In the present study, we evaluated the corrosion performance of silicon carbide (SiC) on anodized titanium dioxide nanotubes (ATO) using plasma-enhanced chemical vapor deposition (PECVD). This was investigated through a potentiodynamic polarization test and bacterial incubation for 30 days. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to analyze surface morphologies of non-coated and SiC-coated nanotubes. Energy dispersive X-ray (EDX) was used to analyze the surface composition. In conclusion, SiC-coated ATO exhibited improved corrosion resistance and holds promise as an implant coating material.
Collapse
Affiliation(s)
- Shu-Min Hsu
- Department of Restorative Dental Sciences, Division of Prosthodontics, University of Florida College of Dentistry, Gainesville, FL 32610, USA; (S.-M.H.); (S.E.A.C.)
| | - Chaker Fares
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32610, USA; (C.F.); (X.X.); (F.R.)
| | - Xinyi Xia
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32610, USA; (C.F.); (X.X.); (F.R.)
| | - Md Abu Jafar Rasel
- Department of Mechanical Engineering, Penn State University, University Park, PA 16802, USA; (M.A.J.R.); (M.A.H.)
| | | | - Samira Esteves Afonso Camargo
- Department of Restorative Dental Sciences, Division of Prosthodontics, University of Florida College of Dentistry, Gainesville, FL 32610, USA; (S.-M.H.); (S.E.A.C.)
| | - Md Amanul Haque
- Department of Mechanical Engineering, Penn State University, University Park, PA 16802, USA; (M.A.J.R.); (M.A.H.)
| | - Fan Ren
- Department of Chemical Engineering, University of Florida, Gainesville, FL 32610, USA; (C.F.); (X.X.); (F.R.)
| | - Josephine F. Esquivel-Upshaw
- Department of Restorative Dental Sciences, Division of Prosthodontics, University of Florida College of Dentistry, Gainesville, FL 32610, USA; (S.-M.H.); (S.E.A.C.)
| |
Collapse
|
26
|
Gulati K, Zhang Y, Di P, Liu Y, Ivanovski S. Research to Clinics: Clinical Translation Considerations for Anodized Nano-Engineered Titanium Implants. ACS Biomater Sci Eng 2021; 8:4077-4091. [PMID: 34313123 DOI: 10.1021/acsbiomaterials.1c00529] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Titania nanotubes (TNTs) fabricated on titanium orthopedic and dental implants have shown significant potential in "proof of concept" in vitro, ex vivo, and short-term in vivo studies. However, most studies do not focus on a clear direction for future research towards clinical translation, and there exists a knowledge gap in identifying key research challenges that must be addressed to progress to the clinical setting. This review focuses on such challenges with respect to anodized titanium implants modified with TNTs, including optimized fabrication on clinically utilized microrough surfaces, clinically relevant bioactivity assessments, and controlled/tailored local release of therapeutics. Further, long-term in vivo investigations in compromised animal models under loading conditions are needed. We also discuss and detail challenges and progress related to the mechanical stability of TNT-based implants, corrosion resistance/electrochemical stability, optimized cleaning/sterilization, packaging/aging, and nanotoxicity concerns. This extensive, clinical translation focused review of TNTs modified Ti implants aims to foster improved understanding of key research gaps and advances, informing future research in this domain.
Collapse
Affiliation(s)
- Karan Gulati
- The University of Queensland, School of Dentistry, Herston, Queensland 4006, Australia
| | - Yifan Zhang
- Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Centre for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Ping Di
- Department of Oral Implantology, Peking University School and Hospital of Stomatology and National Clinical Research Centre for Oral Diseases and National Engineering Laboratory for Digital and Material Technology of Stomatology and Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Yan Liu
- Laboratory of Biomimetic Nanomaterials, Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - Sašo Ivanovski
- The University of Queensland, School of Dentistry, Herston, Queensland 4006, Australia
| |
Collapse
|
27
|
Graeff MSZ, Tokuhara CK, Sanches MLR, Buzalaf MAR, Rocha LA, de Oliveira RC. Osteoblastic response to biomaterials surfaces: Extracellular matrix proteomic analysis. J Biomed Mater Res B Appl Biomater 2021; 110:176-184. [PMID: 34196101 DOI: 10.1002/jbm.b.34900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 01/09/2023]
Abstract
The cellular response to surfaces is mediated, among other factors, by the extracellular matrix (ECM). However, little is known about the ECM proteome during mineralization. Our objective was to compare the ECM composition formed by osteoblast on different materials surfaces with proteomic analysis. Three types of biomaterial surfaces (pure titanium, anodized titanium, and zirconia) were used. Osteoblasts (MC3T3 linage) cells were cultivated on the biomaterials for 7, 14, and 21 days with the osteogenic medium. For the proteomic analysis, the specimens were washed, decellularized, and the ECM was collected. The majority of the typical ECM proteins, out of a total of 24 proteins identified, was expressed and regulated equally on the three biomaterials tested. Alpha-1,4 glucan phosphorylase was found to be down-regulated on zirconia on the seventh day, while at the same time, glycogen phosphorylase brain form was up-regulated on anodized titanium, both when compared with pure titanium (ratio: 1.06 and 0.97, respectively). And after 14 days of culture, glycogen phosphorylase brain form was downregulated on zirconia when compared with pure titanium (ratio: 0.90), suggesting the influence of material surface roughness and chemical composition on energy metabolism. Proteins related to bone development like Transforming growth factor beta-3 and Fibroblast growth factor 8 were found exclusively on pure titanium on the 21st day. Altogether, our results show a possible influence of material surfaces on the composition of ECM.
Collapse
Affiliation(s)
| | - Cintia Kazuko Tokuhara
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, FOB/USP, Bauru, Brazil
| | | | | | - Luis Augusto Rocha
- Departamento de Física, Faculdade de Ciências, FC/UNESP, Bauru, Brazil.,Braço Brasileiro do Instituto de Biomateriais, Tribocorrosão e Nanomedicina (IBTN/Br), Bauru, Brazil
| | - Rodrigo Cardoso de Oliveira
- Departamento de Ciências Biológicas, Faculdade de Odontologia de Bauru, FOB/USP, Bauru, Brazil.,Braço Brasileiro do Instituto de Biomateriais, Tribocorrosão e Nanomedicina (IBTN/Br), Bauru, Brazil
| |
Collapse
|
28
|
Zhao QM, Li B, Yu FX, Li YK, Wu JS, Peng Z, He J, Han QS, Zhang LB, Yi L, Xu RS, Jiao Y. Cu-Co Co-Doped Microporous Coating on Titanium with Osteogenic and Antibacterial Properties. J Biomed Nanotechnol 2021; 17:1435-1447. [PMID: 34446146 DOI: 10.1166/jbn.2021.3120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Titanium (Ti) and its alloys are widely used in bone surgery by virtue of their excellent mechanical properties and good biocompatibility; however, complications such as loosening and sinking have been reported post-implantation. Herein we deposited a copper-cobalt (Cu-Co) co-doped titanium dioxide (TUO) coating on the surface of Ti implants by microarc oxidation. The osteogenic and antimicrobial properties of the coating were evaluated by in vitro experiments, and we also assessed β-catenin expression levels on different sample surfaces. Our results revealed that the coating promoted the adhesion, proliferation, and differentiation of MG63 osteoblasts, and TUO coating promoted β-catenin expression; moreover, the proliferation of Staphylococcus aureus was inhibited. To summarize, we report that Cu-Co co-doping can enhance the osteogenic and antibacterial activities of orthopedic Ti implants, leading to potentially improved clinical performance.
Collapse
Affiliation(s)
- Quan-Ming Zhao
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Bo Li
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Fu-Xun Yu
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Yan-Kun Li
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Jie-Shi Wu
- Department of Orthopaedics, Affiliated Hospital of Jiangnan University (Wuxi Translational Medicine Center), Wuxi 214000, Jangsu, China
| | - Zhi Peng
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Jie He
- NHC Key Laboratory of Pulmonary Immunological Diseases, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Quan-Sheng Han
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Lei-Bing Zhang
- Department of Orthopaedics, Guizhou Provincial People's Hospital, Guiyang 550002, Guizhou, China
| | - Lei Yi
- Department of Burn, Ruijin Hospital Affliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Rui-Sheng Xu
- Department of Orthopaedics, Affiliated Hospital of Jiangnan University (Wuxi Translational Medicine Center), Wuxi 214000, Jangsu, China
| | - Yang Jiao
- Department of Stomatology, The 7th Medical Center, Chinese PLA General Hospital, Beijing 100700, China
| |
Collapse
|
29
|
Winiecki M, Krawczyk P. Titanium-peroxy and peroxide complex functionalities on Ti-6Al-4V alloy effected by modification with active radicals. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
30
|
García I, Trobajo C, Amghouz Z, Alonso-Guervos M, Díaz R, Mendoza R, Mauvezín-Quevedo M, Adawy A. Ag- and Sr-enriched nanofibrous titanium phosphate phases as potential antimicrobial cement and coating for a biomedical alloy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112168. [PMID: 34082969 DOI: 10.1016/j.msec.2021.112168] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/22/2021] [Accepted: 04/29/2021] [Indexed: 10/21/2022]
Abstract
Biomaterials and their surfaces regulate the biological response and ultimately the quality of healing at a possible site of implantation. The physical, chemical and topographical properties of implants' surfaces play a decisive role in the biological integration process for their immediate loading and long-term success. Since at this level of biological interaction nano-dimensionality is basically entailed, bio-functional nanostructured composites either as filling/cement or coating to metallic implants are required. This study shows the possibility of synthesizing two phases of nanostructured titanium phosphate (π and ρ polymorphs) and enriching them with silver nanoparticles and strontium. More importantly, Ag-Sr-enriched nanostructured π‑titanium phosphate is induced to grow on a commercially available titanium alloy (Ti-6Al-4V), widely used in orthopedic and dental implants, under highly controlled conditions. Structural and microscopic studies, using XRD, HRTEM and SEM altogether confirm the resultant phases and their enrichment with strontium and silver nanoparticles with an average particle size around 6 nm. Using confocal laser scanning microscopy, the surface roughness was measured and is found to lay at the interface between the nanosized and microsized topologies. Ion release assessments showed that the presence of strontium controlled the release rate of silver ions and this could be beneficial in terms of decreasing the accompanied cytotoxicity that is usually encountered at high concentrations of silver release. Antimicrobial and cell proliferation assays have proved that enriching titanium phosphate with strontium and silver nanoparticles has improved their antimicrobial properties, while the cytotoxicity could be controlled.
Collapse
Affiliation(s)
- Inés García
- Nanomaterials and Nanotechnology Research Centre - CINN (CSIC), 33940, El Entrego, Asturias, Spain
| | - Camino Trobajo
- Nanomaterials and Nanotechnology Research Centre - CINN (CSIC), 33940, El Entrego, Asturias, Spain; Department of Organic and Inorganic Chemistry, University of Oviedo, 33006 Oviedo, Spain
| | - Zakariae Amghouz
- Department of Material Science and Metallurgical Engineering, University of Oviedo, 33203 Gijón, Spain
| | - Marta Alonso-Guervos
- Optical Microscopy and Image Processing Unit, Institute for Scientific and Technological Resources (SCTs), University of Oviedo, 33006 Oviedo, Spain
| | - Raquel Díaz
- Nanomaterials and Nanotechnology Research Centre - CINN (CSIC), 33940, El Entrego, Asturias, Spain
| | - Rafael Mendoza
- Department of Physical and Analytical Chemistry, University of Oviedo, 33006 Oviedo, Spain
| | - Mario Mauvezín-Quevedo
- Department of Prosthodontics and Occlusion, School of Dentistry, University of Oviedo, 33006 Oviedo, Spain
| | - Alaa Adawy
- Laboratory of High-Resolution Transmission Electron Microscopy, Institute for Scientific and Technological Resources (SCTs), University of Oviedo, 33006 Oviedo, Spain.
| |
Collapse
|
31
|
Kobayashi Y, Tada S, Kikuchi R. Porous intermetallic Ni 2XAl (X = Ti or Zr) nanoparticles prepared from oxide precursors. NANOSCALE ADVANCES 2021; 3:1901-1905. [PMID: 36133086 PMCID: PMC9417867 DOI: 10.1039/d1na00047k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/17/2021] [Indexed: 06/13/2023]
Abstract
Porous intermetallic Ni2XAl (X = Ti or Zr) nanoparticles with small crystallite sizes (24-34 nm) and high Brunauer-Emmett-Teller (BET) surface areas (10-71 m2 g-1) were prepared from oxide precursors by a chemical route. CaH2 acted as a template to form the porous morphologies and assisted the reduction.
Collapse
Affiliation(s)
- Yasukazu Kobayashi
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Shohei Tada
- Department of Materials Science and Engineering, Ibaraki University 4-12-1 Nakanarusawacho Hitachi Ibaraki 316-8511 Japan
| | - Ryuji Kikuchi
- Department of Chemical System Engineering, The University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo 113-8656 Japan
| |
Collapse
|
32
|
Zhao C, Yang Y, Luo L, Shao S, Zhou Y, Shao Y, Zhan F, Yang J, Zhou Y. γ-ray induced formation of oxygen vacancies and Ti 3+ defects in anatase TiO 2 for efficient photocatalytic organic pollutant degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 747:141533. [PMID: 32795806 DOI: 10.1016/j.scitotenv.2020.141533] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 08/04/2020] [Accepted: 08/04/2020] [Indexed: 06/11/2023]
Abstract
Oxygen vacancies and Ti3+ defects in anatase TiO2 have attracted great attention to address the insufficient optical absorption and photoinduced charge-carrier separation in photocatalysis. In this study, we demonstrate a superficial and innovative approach for synthesizing anatase TiO2 nanoparticles with abundant oxygen vacancies via γ-ray irradiation reduction at room temperature. X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR) confirm that oxygen vacancies and Ti3+ defects can be quantitatively and extensively obtained by merely regulating the irradiation dosage. Photoelectrochemical measurements suggest that oxygen vacancies and Ti3+ defects promoted the separation of electron-hole pairs and then enhanced the photocatalytic degradation performance for organic pollutant. In comparison with TiO2 (no irradiation), the sample (49.5 kGy irradiation) exhibited a 20.0-fold enhancement in visible-light decomposition of phenol. In addition, the results of scavenge experiments and mechanism analysis revealed that O2- are the dominant active species. The excited electrons generated at the conduction band and oxygen vacancy level of TiO2-x-49.5 conspicuously contributes to generate much more ·O2- species. This novel study shows at room temperature, the γ-ray approach of irradiation leads to faster formation and quantification of oxygen vacancies in the semiconductor materials.
Collapse
Affiliation(s)
- Caifeng Zhao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China; Hunan Institute of Nuclear Agricultural Science and Space Breeding, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Yahui Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Lin Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Sai Shao
- Hunan Institute of Nuclear Agricultural Science and Space Breeding, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Yiji Zhou
- Hunan Institute of Nuclear Agricultural Science and Space Breeding, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Ying Shao
- Hunan Institute of Nuclear Agricultural Science and Space Breeding, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Faqi Zhan
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
| | - Jian Yang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Yaoyu Zhou
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| |
Collapse
|
33
|
Green Synthesized Palladium Coated Titanium Nanotube Arrays for Simultaneous Azo-Dye Degradation and Hydrogen Production. Catalysts 2020. [DOI: 10.3390/catal10111330] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In this study, electrodes of titanium dioxide nanotube arrays (TNAs) were successfully synthesized by applying the anodic oxidation etching method, as well as the use of green synthetic technology to add reducing agents of tea or coffee to reduce metal palladium from palladium chloride. Synthesis of palladium modified TNAs (Pd/TNAs) was conducted by the microwave hydrothermal method after the metal palladium was reduced. In order to identify the surface structure, light absorption and elemental composition, TNAs and Pd/TNAs were characterized by X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). Furthermore, to test the photocurrent density, electron resistance, and hydroxyl radicals by I-t plot, electrochemistry impedance spectroscopy (EIS), and electron paramagnetic resonance (EPR) were investigated. The photocurrent (4.0 mA/cm2) of Pd/TNAs-C (using coffee as the reducing agent) at +1.0 V (vs. Ag/AgCl) was higher than that of the pure TNAs (1.5 mA/cm2), illustrating that Pd/TNAs-C can effectively separate photogenerated electrons and holes. Pd/TNAs is a favorable material as a photoanode for the photoelectrochemical (PEC) removal of organic pollutants in wastewater.
Collapse
|
34
|
Rajan ST, V V AT, Terada-Nakaishi M, Chen P, Hanawa T, Nandakumar AK, Subramanian B. Zirconium-based metallic glass and zirconia coatings to inhibit bone formation on titanium. Biomed Mater 2020; 15:065019. [DOI: 10.1088/1748-605x/aba23a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
35
|
A Comprehensive Review on the Corrosion Pathways of Titanium Dental Implants and Their Biological Adverse Effects. METALS 2020. [DOI: 10.3390/met10091272] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The main aim of this work was to perform a comprehensive review of findings reported by previous studies on the corrosion of titanium dental implants and consequent clinical detrimental effects to the patients. Most studies were performed by in vitro electrochemical tests and complemented with microscopic techniques to evaluate the corrosion behavior of the protective passive oxide film layer, namely TiO2. Results revealed that bacterial accumulation, dietary, inflammation, infection, and therapeutic solutions decrease the pH of the oral environment leading to the corrosion of titanium. Some therapeutic products used as mouthwash negatively affect the corrosion behavior of the titanium oxide film and promote changes on the implant surface. In addition, toothpaste and bleaching agents, can amplify the chemical reactivity of titanium since fluor ions interacting with the titanium oxide film. Furthermore, the number of in vivo studies is limited although corrosion signs have been found in retrieved implants. Histological evaluation revealed titanium macro- and micro-scale particles on the peri-implant tissues. As a consequence, progressive damage of the dental implants and the evolution of inflammatory reactions depend on the size, chemical composition, and concentration of submicron- and nanoparticles in the surrounding tissues and internalized by the cells. In fact, the damage of the implant surfaces results in the loss of material that compromises the implant surfaces, implant-abutment connections, and the interaction with soft tissues. The corrosion can be an initial trigger point for the development of biological or mechanical failures in dental implants.
Collapse
|
36
|
Demonstration of a SiC Protective Coating for Titanium Implants. MATERIALS 2020; 13:ma13153321. [PMID: 32722625 PMCID: PMC7435394 DOI: 10.3390/ma13153321] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/16/2020] [Accepted: 07/23/2020] [Indexed: 12/02/2022]
Abstract
To mitigate the corrosion of titanium implants and improve implant longevity, we investigated the capability to coat titanium implants with SiC and determined if the coating could remain intact after simulated implant placement. Titanium disks and titanium implants were coated with SiC using plasma-enhanced chemical vapor deposition (PECVD) and were examined for interface quality, chemical composition, and coating robustness. SiC-coated titanium implants were torqued into a Poly(methyl methacrylate) (PMMA) block to simulate clinical implant placement followed by energy dispersive spectroscopy to determine if the coating remained intact. After torquing, the atomic concentration of the detectable elements (silicon, carbon, oxygen, titanium, and aluminum) remained relatively unchanged, with the variation staying within the detection limits of the Energy Dispersive Spectroscopy (EDS) tool. In conclusion, plasma-enhanced chemical vapor deposited SiC was shown to conformably coat titanium implant surfaces and remain intact after torquing the coated implants into a material with a similar hardness to human bone mass.
Collapse
|
37
|
Bao W, Wang N, He Z. Synthesis of reduced C,N-TiO 2 for catalytic oxidation of HCHO indoors. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1798416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Wen Bao
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Nan Wang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Zhanhang He
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, China
| |
Collapse
|
38
|
Zeng Y, Komasa S, Nishida H, Agariguchi A, Sekino T, Okazaki J. Enhanced Osseointegration and Bio-Decontamination of Nanostructured Titanium Based on Non-Thermal Atmospheric Pressure Plasma. Int J Mol Sci 2020; 21:ijms21103533. [PMID: 32429471 PMCID: PMC7278937 DOI: 10.3390/ijms21103533] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/07/2020] [Accepted: 05/13/2020] [Indexed: 12/12/2022] Open
Abstract
Alkali-treated titanate layer with nanonetwork structures (TNS) is a promising surface for improving osseointegration capacity in implants. Nevertheless, there is a risk of device failure as a result of insufficient resistance to biofilm contamination. This study tested whether treatment using a handheld non-thermal plasma device could efficiently eliminate biofilm contamination without destroying the surface nanostructure while re-establishing a surface that promoted new bone generation. TNS specimens were treated by a piezoelectric direct discharge (PDD) plasma generator. The effect of decontamination was performed utilizing Staphylococcus aureus. The evaluation of initial cell attachment with adhesion images, alkaline phosphatase activity, extracellular matrix mineralization, and expression of genes related to osteogenesis was performed using rat bone marrow mesenchymal stem cells, and the bone response were evaluated in vivo using a rat femur model. Nanotopography and surface roughness did not significantly differ before and after plasma treatments. Cell and bone formation activity were improved by TNS plasma treatment. Furthermore, plasma treatment effectively eliminated biofilm contamination from the surface. These results suggested that this plasma treatment may be a promising approach for the treatment of nanomaterials immediately before implantation and a therapeutic strategy for peri-implantitis.
Collapse
Affiliation(s)
- Yuhao Zeng
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Satoshi Komasa
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Hisataka Nishida
- The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Akinori Agariguchi
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| | - Tohru Sekino
- The Institute of Scientific and Industrial Research, Osaka University, Suita, Osaka 565-0871, Japan
| | - Joji Okazaki
- Department of Removable Prosthodontics and Occlusion, Osaka Dental University, 8-1, Kuzuhahanazono-cho, Hirakata-shi, Osaka 573-1121, Japan
| |
Collapse
|
39
|
Synthesis of Chitosan Beads Incorporating Graphene Oxide/Titanium Dioxide Nanoparticles for In Vivo Studies. Molecules 2020; 25:molecules25102308. [PMID: 32423061 PMCID: PMC7287625 DOI: 10.3390/molecules25102308] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 01/08/2023] Open
Abstract
Scaffold development for cell regeneration has increased in recent years due to the high demand for more efficient and biocompatible materials. Nanomaterials have become a critical alternative for mechanical, thermal, and antimicrobial property reinforcement in several biopolymers. In this work, four different chitosan (CS) bead formulations crosslinked with glutaraldehyde (GLA), including titanium dioxide nanoparticles (TiO2), and graphene oxide (GO) nanosheets, were prepared with potential biomedical applications in mind. The characterization of by FTIR spectroscopy, X-ray photoelectron spectroscopy (XRD), thermogravimetric analysis (TGA), energy-dispersive spectroscopy (EDS) and scanning electron microscopy (SEM), demonstrated an efficient preparation of nanocomposites, with nanoparticles well-dispersed in the polymer matrix. In vivo, subdermal implantation of the beads in Wistar rat′s tissue for 90 days showed a proper and complete healing process without any allergenic response to any of the formulations. Masson′s trichrome staining of the histological implanted tissues demonstrated the presence of a group of macrophage/histiocyte compatible cells, which indicates a high degree of biocompatibility of the beads. The materials were very stable under body conditions as the morphometry studies showed, but with low resorption percentages. These high stability beads could be used as biocompatible, resistant materials for long-term applications. The results presented in this study show the enormous potential of these chitosan nanocomposites in cell regeneration and biomedical applications.
Collapse
|
40
|
A novel BSA immobilizing manner on modified titanium surface ameliorates osteoblast performance. Colloids Surf B Biointerfaces 2020; 190:110888. [PMID: 32114272 DOI: 10.1016/j.colsurfb.2020.110888] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/25/2020] [Accepted: 02/19/2020] [Indexed: 12/27/2022]
Abstract
Surface modification of medical and dental devices, to improve their biocorrosion resistance and biocompatibility, can be achieved with the multidisciplinary field of biomaterials. Nanostructured titanium dioxide (TiO2) has been employed as surface modifier of titanium-based biomaterials because it can prevent the failure of the devices due to wear mechanisms. Moreover, this oxide surface is mostly terminated by hydroxyl groups (-OH) that can be directly functionalized with biomolecules to improve the biocompatibility of these devices. We explored the influence of 3-aminopropyltrimethoxysilane (APTMS) molecules as spacers in bovine serum albumin (BSA) protein immobilization on the physically hydroxylated surfaces of rutile phase TiO2 films grown by reactive Radio Frequency (RF) magnetron sputtering. X-ray Photoelectron Spectroscopy (XPS) was used to examine the adsorption of BSA and APTMS on the hydroxylated surface of TiO2 thin films. For biological tests, BSA was directly immobilized on the film surface and on the APTMS monolayer. Biological analysis found better osteoblast performance considering gene markers related to cell adhesion after interacting directly with the surface modified by the immobilization of BSA, especially on the surface where this protein was immobilized by APTMS. Additionally, we addressed the relevance of this biointerfaces on extracellular matrix remodeling by zymography analysis. Altogether, our data provides new insights about the cellular and molecular mechanisms covering the improved osteoblastic response of the proposed surface modification.
Collapse
|
41
|
Huang L, Zhou X, Xue R, Xu P, Wang S, Xu C, Zeng W, Xiong Y, Sang H, Liang D. Low-Temperature Growing Anatase TiO 2/SnO 2 Multi-dimensional Heterojunctions at MXene Conductive Network for High-Efficient Perovskite Solar Cells. NANO-MICRO LETTERS 2020; 12:44. [PMID: 34138260 PMCID: PMC7770768 DOI: 10.1007/s40820-020-0379-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 12/26/2019] [Indexed: 05/17/2023]
Abstract
A multi-dimensional conductive heterojunction structure, composited by TiO2, SnO2, and Ti3C2TX MXene, is facilely designed and applied as electron transport layer in efficient and stable planar perovskite solar cells. Based on an oxygen vacancy scramble effect, the zero-dimensional anatase TiO2 quantum dots, surrounding on two-dimensional conductive Ti3C2TX sheets, are in situ rooted on three-dimensional SnO2 nanoparticles, constructing nanoscale TiO2/SnO2 heterojunctions. The fabrication is implemented in a controlled low-temperature anneal method in air and then in N2 atmospheres. With the optimal MXene content, the optical property, the crystallinity of perovskite layer, and internal interfaces are all facilitated, contributing more amount of carrier with effective and rapid transferring in device. The champion power conversion efficiency of resultant perovskite solar cells achieves 19.14%, yet that of counterpart is just 16.83%. In addition, it can also maintain almost 85% of its initial performance for more than 45 days in 30-40% humidity air; comparatively, the counterpart declines to just below 75% of its initial performance.
Collapse
Affiliation(s)
- Linsheng Huang
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Xiaowen Zhou
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Rui Xue
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Pengfei Xu
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Siliang Wang
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Chao Xu
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| | - Wei Zeng
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China.
| | - Yi Xiong
- Science and Technology Institute, Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing and Finishing, Wuhan Textile University, Wuhan, 430073, People's Republic of China.
- School of Physics and Technology, MOE Key Laboratory of Artificial Micro- and Nano-Structures and Center for Electron Microscopy, Wuhan University, Wuhan, 430072, People's Republic of China.
| | - Hongqian Sang
- School of Physics and Technology, MOE Key Laboratory of Artificial Micro- and Nano-Structures and Center for Electron Microscopy, Wuhan University, Wuhan, 430072, People's Republic of China
- Department of Physics, King's College London, The Strand, London, WC2R 2LS, UK
| | - Dong Liang
- National Engineering Research Center for Agro-Ecological Big Data Analysis and Application, School of Electronics and Information Engineering, Anhui University, No. 111 Jiulong Road, Hefei, 230601, People's Republic of China
| |
Collapse
|
42
|
Chiu WT, Chang TFM, Sone M, Tixier-Mita A, Toshiyoshi H. Roles of TiO 2 in the highly robust Au nanoparticles-TiO 2 modified polyaniline electrode towards non-enzymatic sensing of glucose. Talanta 2020; 212:120780. [PMID: 32113543 DOI: 10.1016/j.talanta.2020.120780] [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] [Received: 11/29/2019] [Revised: 01/18/2020] [Accepted: 01/23/2020] [Indexed: 01/22/2023]
Abstract
Along with the rise of diabetes mellitus issue, glucose sensor has become an imperative tool for healthcare. Studies have been widely conducted on electrode materials for glucose sensors; metal nanoparticles and/or oxide particles in its nano-size are reported to exhibit remarkable electrocatalytic activities in the non-enzymatic glucose sensors. However, the decoration processes of metal nanoparticles or nano-sized oxides are known to be tedious and time-consuming. In addition, the processes usually result in great amount of waste solution emission. In this study, therefore, an Au nanoparticles (NPs)-TiO2 modified polyaniline (PANI) composite is practiced towards the applications of non-enzymatic glucose sensors, by using a facile and time-saving thermal reduction and by electrodeposition techniques with low waste solution emission. Au NPs, which is modified with TiO2 nanoparticles in its optimized amount, performs the highest electrocatalytic activity to the oxidation of glucose in alkaline solution. The stability of Au NPs-TiO2/PANI is superior to those of most reported results over 70 days. The sensitivity and detection limit are 379.8 μA mM-1 cm-2 and 0.15 μM, respectively. High selectivity of Au NPs-TiO2/PANI is also confirmed by the interference test. Spill-over effect of OH- between Au NPs and TiO2, which is the main reason for the improved catalytic activity, is described in this study.
Collapse
Affiliation(s)
- Wan-Ting Chiu
- Institute of Industrial Science (IIS), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
| | - Tso-Fu Mark Chang
- Institute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Masato Sone
- Institute of Innovative Research (IIR), Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama, 226-8503, Japan
| | - Agnès Tixier-Mita
- Institute of Industrial Science (IIS), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| | - Hiroshi Toshiyoshi
- Institute of Industrial Science (IIS), The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan
| |
Collapse
|
43
|
Ramachandran P, Lee CY, Doong RA, Oon CE, Kim Thanh NT, Lee HL. A titanium dioxide/nitrogen-doped graphene quantum dot nanocomposite to mitigate cytotoxicity: synthesis, characterisation, and cell viability evaluation. RSC Adv 2020; 10:21795-21805. [PMID: 35516620 PMCID: PMC9054499 DOI: 10.1039/d0ra02907f] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/01/2020] [Indexed: 12/25/2022] Open
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) have attracted tremendous interest owing to their unique physicochemical properties. However, the cytotoxic effect of TiO2 NPs remains an obstacle for their wide-scale applications, particularly in drug delivery systems and cancer therapies. In this study, the more biocompatible nitrogen-doped graphene quantum dots (N-GQDs) were successfully incorporated onto the surface of the TiO2 NPs resulting in a N-GQDs/TiO2 nanocomposites (NCs). The effects of the nanocomposite on the viability of the breast cancer cell line (MDA-MB-231) was evaluated. The N-GQDs and N-GQDs/TiO2 NCs were synthesised using a one- and two-pot hydrothermal method, respectively while the TiO2 NPs were fabricated using microwave-assisted synthesis in the aqueous phase. The synthesised compounds were characterised using Fourier transform infrared (FTIR) spectroscopy, high-resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FESEM) and UV-visible spectrophotometry. The cell viability of the MDA-MB-231 cell line was determined using a CellTiter 96® AQueous One Solution Cell Proliferation (MTS) assay. The obtained results indicated that a monodispersed solution of N-GQDs with particle size 4.40 ± 1.5 nm emitted intense blue luminescence in aqueous media. The HRTEM images clearly showed that the TiO2 particles (11.46 ± 2.8 nm) are square shaped. Meanwhile, TiO2 particles were located on the 2D graphene nanosheet surface in N-GQDs/TiO2 NCs (9.16 ± 2.4 nm). N-GQDs and N-GQDs/TiO2 NCs were not toxic to the breast cancer cells at 0.1 mg mL−1 and below. At higher concentrations (0.5 and 1 mg mL−1), the nanocomposite was significantly less cytotoxic compared to the pristine TiO2. In conclusion, this nanocomposite with reduced cytotoxicity warrants further exploration as a new TiO2-based nanomaterial for biomedical applications, especially as an anti-cancer strategy. Cytotoxicity mitigation using titanium dioxide/nitrogen-doped graphene quantum dot nanocomposites.![]()
Collapse
Affiliation(s)
- Pravena Ramachandran
- Nanomaterials Research Group
- School of Chemical Sciences
- Universiti Sains Malaysia
- Malaysia
| | - Chong Yew Lee
- School of Pharmaceutical Sciences
- Universiti Sains Malaysia
- Malaysia
| | - Ruey-An Doong
- Institute of Analytical and Environmental Sciences
- National Tsing Hua University
- Hsinchu
- Taiwan
| | - Chern Ein Oon
- Institute for Research in Molecular Medicine (INFORMM)
- Universiti Sains Malaysia
- Malaysia
| | | | - Hooi Ling Lee
- Nanomaterials Research Group
- School of Chemical Sciences
- Universiti Sains Malaysia
- Malaysia
| |
Collapse
|
44
|
Chemical and Biological Roles of Zinc in a Porous Titanium Dioxide Layer Formed by Micro-Arc Oxidation. COATINGS 2019. [DOI: 10.3390/coatings9110705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This study investigated the time transient effect of zinc (Zn) in the porous titanium dioxide formed by micro-arc oxidation (MAO) treatment routinely performed for Zn-containing electrolytes. The aim of our analysis was to understand the changes in both the chemical and biological properties of Zn in physiological saline. The morphology of the Zn-incorporated MAO surface did not change, and a small amount of Zn ions were released at early stages of incubation in saline. We observed a decrease in Zn concentration in the oxide layer because its release and chemical state (Zn2+ compound to ZnO) changed over time during incubation in saline. In addition, the antibacterial property of the Zn-incorporated MAO surface developed at late periods after the incubation process over a course of 28 days. Furthermore, osteogenic cells were able to proliferate and were calcified on the specimens with Zn. The changes related to Zn in saline had non-toxic effects on the osteogenic cells. In conclusion, the time transient effect of Zn in a porous titanium dioxide layer was beneficial to realize dual functions, namely the antibacterial property and osteogenic cell compatibility. Our study suggests the importance of the chemical state changes of Zn to control its chemical and biological properties.
Collapse
|
45
|
Yau A, Sands I, Chen Y. Nano-Scale Surface Modifications to Advance Current Treatment Options for Cervical Degenerative Disc Disease (CDDD). JOURNAL OF ORTHOPEDIC RESEARCH AND THERAPY 2019; 4:1147. [PMID: 33709068 PMCID: PMC7946151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Degenerative Disc Disease (DDD) causes a nagging to severe back pain as well as numbing sensation to the extremities leading to loss of overall patients' height and weakness to leg muscles. Degenerative disc disease is often observed in aging patients as well as patients who have suffered from a back injury. Cervical Degenerative Disc Disease (CDDD) is a progressive condition that leads to the degeneration of the intervertebral discs supporting the cervical vertebral column. Anterior Cervical Interbody Fusion (ACIF) has been the longstanding treatment option for severe degenerative disc disease; however, ACIF presents various novel complications, necessitating numerous comparative device studies to reduce the negative effects of spinal fusion. Cervical disc arthroplasty, the recent focus of clinical attention, was one of the alternatives studied to mitigate the complications associated with vertebral fusion but presents its own disadvantages. These complications prompted further investigation and modifications that can be introduced into these devices. We will be discussing the nano-scale interactions between the implant and extracellular matrix play a crucial role in device integration and efficacy, providing an additional approach towards a device's overall success.
Collapse
Affiliation(s)
- Anne Yau
- Corresponding author: Yupeng Chen, Department of Biomedical Engineering, University of Connecticut, 260 Glenbrook Road, Unit 3247, Storrs, CT 06269-3247, USA. Tel: +1-8604867911; Fax: +1-8604862500;
| | | | | |
Collapse
|
46
|
Nano-scale modification of titanium implant surfaces to enhance osseointegration. Acta Biomater 2019; 94:112-131. [PMID: 31128320 DOI: 10.1016/j.actbio.2019.05.045] [Citation(s) in RCA: 222] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 12/16/2022]
Abstract
The main aim of this review study was to report the state of art on the nano-scale technological advancements of titanium implant surfaces to enhance the osseointegration process. Several methods of surface modification are chronologically described bridging ordinary methods (e.g. grit blasting and etching) and advanced physicochemical approaches such as 3D-laser texturing and biomimetic modification. Functionalization procedures by using proteins, peptides, and bioactive ceramics have provided an enhancement in wettability and bioactivity of implant surfaces. Furthermore, recent findings have revealed a combined beneficial effect of micro- and nano-scale modification and biomimetic functionalization of titanium surfaces. However, some technological developments of implant surfaces are not commercially available yet due to costs and a lack of clinical validation for such recent surfaces. Further in vitro and in vivo studies are required to endorse the use of enhanced biomimetic implant surfaces. STATEMENT OF SIGNIFICANCE: Grit-blasting followed by acid-etching is currently used for titanium implant modifications, although recent technological biomimetic physicochemical methods have revealed enhanced osteoconductive and anti-microbial outcomes. An improvement in wettability and bioactivity of titanium implant surfaces has been accomplished by combining micro and nano-scale modification and functionalization with protein, peptides, and bioactive compounds. Such morphological and chemical modification of the titanium surfaces induce the migration and differentiation of osteogenic cells followed by an enhancement of the mineral matrix formation that accelerate the osseointegration process. Additionally, the incorporation of bioactive molecules into the nanostructured surfaces is a promising strategy to avoid early and late implant failures induced by the biofilm accumulation.
Collapse
|
47
|
Ubaid Ali M, Liu G, Yousaf B, Ullah H, Irshad S, Ahmed R, Hussain M, Rashid A. Evaluation of floor-wise pollution status and deposition behavior of potentially toxic elements and nanoparticles in air conditioner dust during urbanistic development. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:186-195. [PMID: 30439618 DOI: 10.1016/j.jhazmat.2018.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/26/2018] [Accepted: 11/02/2018] [Indexed: 05/22/2023]
Abstract
The study was undertaken to investigate deposition behaviors of various size-segregated particles and indoor air quality using dust accumulated on the air conditioner filter acting as a sink for PTEs and nanoparticles that can pose a significant health risk. However, the particulate matter size and chemical composition in AC dust and its relationship with PTEs remains uncertain. Current study aims to investigate the PTEs and nanoparticles composition of AC dust using different analytical approaches including ICP-MS, XRD, XPS, SEM/TEM along with EDS and Laser Diffraction particle size analyzer. The mean concentration of PTEs like Al, As, Cd, Cu, Li, Pb, Sb, Se, Sn, Ti, V and Zn exceeded the corresponding background value. Pb, As, Sn, Sb, Cd were categorizing under geo-accumulation index class IV. Most of the particles were found to be > 100 μm and it decreased significantly with increase in floor altitude. A significantly negative correlation was found between particles size and PTEs concentration showing a significant increase in PTEs content with decrease in particles size. The XPS results showed dominant peaks for TiO2, Ti-O-N, As2O3, Fe+3, Fe+2, Al-OH and Al203. Additionally, As, Pb, Si and Fe were dominant metallic nanoparticles identified using SEM/TEM along with EDS.
Collapse
Affiliation(s)
- Muhammad Ubaid Ali
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Habib Ullah
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Samina Irshad
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Rafay Ahmed
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Mudassar Hussain
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Audil Rashid
- EcoHealth Research Group, Department of Environmental Sciences, PMAS Arid Agriculture University Rawalpindi, Pakistan.
| |
Collapse
|
48
|
Physicochemical characterization of albumin immobilized on different TiO2 surfaces for use in implant materials. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.12.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
49
|
Jiang X, Yan Z, Zhang J, Gao J, Huang W, Shi Q, Zhang H. Mesoporous hollow black TiO2 with controlled lattice disorder degrees for highly efficient visible-light-driven photocatalysis. RSC Adv 2019; 9:36907-36914. [PMID: 35539040 PMCID: PMC9075178 DOI: 10.1039/c9ra08148h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 10/29/2019] [Indexed: 01/02/2023] Open
Abstract
Black TiO2 has received tremendous attention because of its lattice disorder-induced reduction in the TiO2 bandgap, which yields excellent light absorption and photocatalytic ability. In this report, a highly efficient visible-light-driven black TiO2 photocatalyst was synthesized with a mesoporous hollow shell structure. It provided a higher specific surface area, more reaction sites and enhanced visible light absorption capability, which significantly promoted the photocatalytic reaction. Subsequently, the mesoporous hollow black TiO2 with different lattice disorder-engineering degrees were designed. The structure disorder in the black TiO2 obviously increased with reduction temperature, leading to improved visible light absorption. However, their visible-light-driven photocatalytic efficiency increased first and then decreased. The highest value can be observed for the sample reduced at 350 °C, which was 2-, 1.4- and 5-fold that of the samples reduced at 320 °C, 380 °C and 400 °C, respectively. This contradiction can be ascribed to the varied functions of the surface defects with different concentrations in the black TiO2 during the catalytic process. In particular, the defects at low concentrations boost photocatalysis but reverse photocatalysis at high concentrations when they act as charge recombination centers. This study provides significant insight for the fabrication of high-efficiency visible-light-driven catalytic black TiO2 and the understanding of its catalysis mechanism. Our work provides significant insights into the design of hollow black TiO2 spheres and the mechanism accounting for their high-efficient visible-light-driven catalysis.![]()
Collapse
Affiliation(s)
- Xiongrui Jiang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Zhiyao Yan
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Jing Zhang
- College of Architecture and Environment
- Sichuan University
- Chengdu 610065
- China
| | - Junzheng Gao
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Wanxia Huang
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Qiwu Shi
- College of Materials Science and Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Hengzhong Zhang
- Center for High Pressure Science and Technology Advance Research
- Shanghai 201203
- China
| |
Collapse
|
50
|
Liu W, Gong Y, Li X, Luo CW, Liu C, Chao ZS. A TiO2/C catalyst having biomimetic channels and extremely low Pt loading for formaldehyde oxidation. RSC Adv 2019; 9:3965-3971. [PMID: 35518097 PMCID: PMC9060426 DOI: 10.1039/c8ra10314c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 01/16/2019] [Indexed: 01/31/2023] Open
Abstract
This study presents a TiO2/C hybrid material with biomimetic channels fabricated using a wood template. Repeated impregnations of pretreated wood chips in a Ti precursor were conducted, followed by calcination at 400–600 °C for 4 hours under a nitrogen atmosphere. The generated TiO2 nanocrystals were homogenously distributed inside a porous carbon framework. With an extremely low Pt catalyst loading (0.04–0.1 wt%), the obtained porous catalyst could effectively oxidize formaldehyde to CO2 and H2O even under room temperature (conv. ∼100%). Wood acted as both a structural template and reduction agent for Pt catalyst generation in sintering. Therefore, no post H2 reduction treatment for catalyst activation was required. The hierarchal channel structures, including 2–10 nm mesopores and 20 μm diameter channels, could be controlled by calcination temperature and atmosphere, which was confirmed by SEM and BET characterizations. Based on the abundant availability of wood templates and reduced cost for low Pt loading, this preparation method shows great potential for large-scale applications. This study presents a TiO2/C hybrid material with biomimetic channels fabricated using a wood template.![]()
Collapse
Affiliation(s)
- Wei Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Yutao Gong
- School of Chemical & Biomolecular Engineering and RBI
- Georgia Institute of Technology
- Atlanta
- USA
| | - Xueping Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Cai-wu Luo
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Congmin Liu
- National Institute of Clean-and-Low-Carbon Energy
- Beijing 102211
- China
| | - Zi-sheng Chao
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| |
Collapse
|