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Soe ZC, Wahyudi R, Mattheos N, Lertpimonchai A, Everts V, Tompkins KA, Osathanon T, Limjeerajarus CN, Limjeerajarus N. Application of nanoparticles as surface modifiers of dental implants for revascularization/regeneration of bone. BMC Oral Health 2024; 24:1175. [PMID: 39367468 PMCID: PMC11451240 DOI: 10.1186/s12903-024-04966-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2024] [Accepted: 09/26/2024] [Indexed: 10/06/2024] Open
Abstract
BACKGROUND Osseointegrated dental implants are widely established as a first-choice treatment for the replacement of missing teeth. Clinical outcomes are however often compromised by short or longer-term biological complications and pathologies. Nanoparticle-coated materials represent a very active research area with the potential to enhance clinical outcomes and reduce complications of implant therapy. This scoping review aimed to summarize current research on various types of nanoparticles (NPs) used as surface modifiers of dental implants and their potential to promote biological and clinical outcomes. METHODS A systematic electronic search was conducted in SCOPUS, PubMed and Google Scholar aiming to identify in vivo, in situ, or in vitro studies published between 2014 and 2024. Inclusion and exclusion criteria were determined and were described in the methods section. RESULTS A total of 169 articles (44 original papers from Scopus and PubMed, and 125 articles from Google Scholar) were identified by the electronic search. Finally, 30 studies fit the inclusion criteria and were further used in this review. The findings from the selected papers suggest that nanoparticle-coated dental implants show promising results in enhancing bone regeneration and promoting angiogenesis around the implant site. These effects are due to the unique physicochemical properties of nanoparticle-coated implants and the controlled release of bioactive molecules from nanoparticle-modified surfaces. CONCLUSION Nanoscale modifications displayed unique properties which could significantly enhance the properties of dental implants and further accelerate revascularization, and osseointegration while facilitating early implant loading. Yet, since many of these findings were based on in-vitro/in-situ systems, further research is required before such technology reaches clinical application.
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Affiliation(s)
- Zar Chi Soe
- Faculty of Dentistry, Graduate Program in Oral Biology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Rahman Wahyudi
- Faculty of Dentistry, Graduate Program in Oral Biology, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nikos Mattheos
- Department of Dental Medicine, Karolinska Institute, Stockholm, Sweden
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Attawood Lertpimonchai
- Department of Periodontology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Vincent Everts
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
- Office of Research Affairs, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Kevin A Tompkins
- Office of Research Affairs, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Thanaphum Osathanon
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
- Center of Excellence for Dental Stem Cell Biology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chalida Nakalekha Limjeerajarus
- Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
- Center of Excellence in Genomics and Precision Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
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Seoane-Viaño I, Seoane-Gigirey M, Bendicho-Lavilla C, Gigirey LM, Otero-Espinar FJ, Seoane-Trigo S. The Integration of Advanced Drug Delivery Systems into Conventional Adjuvant Therapies for Peri-Implantitis Treatment. Pharmaceutics 2024; 16:769. [PMID: 38931890 PMCID: PMC11207621 DOI: 10.3390/pharmaceutics16060769] [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: 04/07/2024] [Revised: 05/31/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024] Open
Abstract
Despite the high success rates of dental implants, peri-implantitis is currently the most common complication in dental implantology. Peri-implantitis has an inflammatory nature, it is associated with the accumulation of plaque in the peri-implant tissues, and its evolution can be progressive depending on various factors, comorbidities, and poor oral health. Prophylaxis and different treatment methods have been widely discussed in recent decades, and surgical and non-surgical techniques present both advantages and disadvantages. In this work, a literature review of different studies on the application of adjuvant treatments, such as local and systemic antibiotics and antiseptic treatments, was conducted. Positive outcomes have been found in the short (up to one year after treatment) and long term (up to ten years after treatment) with combined therapies. However, there is still a need to explore new therapies based on the use of advanced drug delivery systems for the effective treatment of peri-implantitis in the long term and without relapses. Hence, micro- and nanoparticles, implants, and injectable hydrogels, among others, should be considered in future peri-implantitis treatment with the aim of enhancing overall therapy outcomes.
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Affiliation(s)
- Iria Seoane-Viaño
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and Institute of Materials (iMATUS), University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.S.-G.); (C.B.-L.); (F.J.O.-E.)
- Paraquasil Group (GI-2109), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Mariola Seoane-Gigirey
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and Institute of Materials (iMATUS), University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.S.-G.); (C.B.-L.); (F.J.O.-E.)
| | - Carlos Bendicho-Lavilla
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and Institute of Materials (iMATUS), University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.S.-G.); (C.B.-L.); (F.J.O.-E.)
- Paraquasil Group (GI-2109), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Luz M. Gigirey
- Department of Applied Physics, Faculty of Optics and Optometry, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain;
| | - Francisco J. Otero-Espinar
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and Institute of Materials (iMATUS), University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain; (M.S.-G.); (C.B.-L.); (F.J.O.-E.)
- Paraquasil Group (GI-2109), Health Research Institute of Santiago de Compostela (IDIS), 15706 Santiago de Compostela, Spain
| | - Santiago Seoane-Trigo
- Ph. Dr. Adult Comprehensive Dentistry, University of Santiago de Compostela (USC), 15782 Santiago de Compostela, Spain
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Huang C, Wang H, Yao L, Li L, Lou W, Yao L, Shi Y, Li R. Fabrication and evaluation of silver modified micro/nano structured titanium implant. J Biomater Appl 2024; 38:848-857. [PMID: 38266656 DOI: 10.1177/08853282231222590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
In order to enhance the antibacterial property of titanium implant without inducing obvious cytotoxicity, the combination of Ag nanolayer and micro/nano surface structure was conducted by magnetron sputtering and hot-alkali treatment in this study. A series of specimens (AH-Ti, AH-Ti/Ag0.25, AH-Ti/Ag1, AH-Ti/Ag2, and AH-Ti/Ag5) were prepared with different sputtering durations (0 min, 0.25 min, 1 min, 2 min, 5 min), respectively, all realizing long-term release of Ag+. In vitro experiments indicated that AH-Ti/Ag1 group possessed good cytocompatibility, nice osteogenic ability, and excellent antibacterial efficiency as well. In addition, AH-Ti/Ag0.25 showed good biocompatibility, while the reduction of S.aureus (78.5%) was not enough compared with AH-Ti/Ag1. Although the AH-Ti/Ag2 and AH-Ti/Ag5 group showed superior antibacterial activity, their obvious cytotoxicity caused low ALP and mineralization level. Therefore, the design of suitable Ag nanolayer coating combined with micro/nano surface structure (AH-Ti/Ag1) might be a promising strategy to enhance osteogenic property and maintain excellent antibacterial ability at the same time.
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Affiliation(s)
- Chengyi Huang
- Department of Dentistry, School of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Haiyan Wang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Lili Yao
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Li Li
- Department of Dentistry, School of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Weiwei Lou
- Department of Stomatology, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Litao Yao
- Department of Dentistry, School of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Yitian Shi
- Department of Dentistry, School of Medicine, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Renren Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
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Zhang J, Zhuang Y, Sheng R, Tomás H, Rodrigues J, Yuan G, Wang X, Lin K. Smart stimuli-responsive strategies for titanium implant functionalization in bone regeneration and therapeutics. MATERIALS HORIZONS 2024; 11:12-36. [PMID: 37818593 DOI: 10.1039/d3mh01260c] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/12/2023]
Abstract
With the increasing and aging of global population, there is a dramatic rise in the demand for implants or substitutes to rehabilitate bone-related disorders which can considerably decrease quality of life and even endanger lives. Though titanium and its alloys have been applied as the mainstream material to fabricate implants for load-bearing bone defect restoration or temporary internal fixation devices for bone fractures, it is far from rare to encounter failed cases in clinical practice, particularly with pathological factors involved. In recent years, smart stimuli-responsive (SSR) strategies have been conducted to functionalize titanium implants to improve bone regeneration in pathological conditions, such as bacterial infection, chronic inflammation, tumor and diabetes mellitus, etc. SSR implants can exert on-demand therapeutic and/or pro-regenerative effects in response to externally applied stimuli (such as photostimulation, magnetic field, electrical and ultrasound stimulation) or internal pathology-related microenvironment changes (such as decreased pH value, specific enzyme secreted by bacterial and excessive production of reactive oxygen species). This review summarizes recent progress on the material design and fabrication, responsive mechanisms, and in vitro and in vivo evaluations for versatile clinical applications of SSR titanium implants. In addition, currently existing limitations and challenges and further prospective directions of these strategies are also discussed.
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Affiliation(s)
- Jinkai Zhang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai 200011, China.
| | - Yu Zhuang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai 200011, China.
| | - Ruilong Sheng
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Madeira, Portugal.
| | - Helena Tomás
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Madeira, Portugal.
| | - João Rodrigues
- CQM-Centro de Quimica da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105, Funchal, Madeira, Portugal.
| | - Guangyin Yuan
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Xudong Wang
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai 200011, China.
| | - Kaili Lin
- Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; Research Unit of Oral and Maxillofacial Regenerative Medicine, Chinese Academy of Medical Sciences, Shanghai 200011, China.
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Han J, Ma Q, An Y, Wu F, Zhao Y, Wu G, Wang J. The current status of stimuli-responsive nanotechnologies on orthopedic titanium implant surfaces. J Nanobiotechnology 2023; 21:277. [PMID: 37596638 PMCID: PMC10439657 DOI: 10.1186/s12951-023-02017-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/21/2023] [Indexed: 08/20/2023] Open
Abstract
With the continuous innovation and breakthrough of nanomedical technology, stimuli-responsive nanotechnology has been gradually applied to the surface modification of titanium implants to achieve brilliant antibacterial activity and promoted osteogenesis. Regarding to the different physiological and pathological microenvironment around implants before and after surgery, these surface nanomodifications are designed to respond to different stimuli and environmental changes in a timely, efficient, and specific way/manner. Here, we focus on the materials related to stimuli-responsive nanotechnology on titanium implant surface modification, including metals and their compounds, polymer materials and other materials. In addition, the mechanism of different response types is introduced according to different activation stimuli, including magnetic, electrical, photic, radio frequency and ultrasonic stimuli, pH and enzymatic stimuli (the internal stimuli). Meanwhile, the associated functions, potential applications and developing prospect were discussion.
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Affiliation(s)
- Jingyuan Han
- Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
- School of Stomatology, Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Experimental Center for Stomatology Engineering, Jiamusi University, Jiamusi, 154007 China
| | - Qianli Ma
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, Geitmyrsveien, Oslo, 710455 Norway
| | - Yanxin An
- Department of General Surgery, The First Affiliated Hospital of Xi’an Medical University, Xi’an, China
| | - Fan Wu
- Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
- School of Stomatology, Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Experimental Center for Stomatology Engineering, Jiamusi University, Jiamusi, 154007 China
| | - Yuqing Zhao
- Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
- School of Stomatology, Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Experimental Center for Stomatology Engineering, Jiamusi University, Jiamusi, 154007 China
| | - Gaoyi Wu
- School of Stomatology, Heilongjiang Key Lab of Oral Biomedicine Materials and Clinical Application, Experimental Center for Stomatology Engineering, Jiamusi University, Jiamusi, 154007 China
| | - Jing Wang
- Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Oral Implants, School of Stomatology, The Fourth Military Medical University, Xi’an, 710032 China
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Tardelli JDC, Bagnato VS, Reis ACD. Bacterial Adhesion Strength on Titanium Surfaces Quantified by Atomic Force Microscopy: A Systematic Review. Antibiotics (Basel) 2023; 12:994. [PMID: 37370313 DOI: 10.3390/antibiotics12060994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 12/04/2022] [Accepted: 12/05/2022] [Indexed: 06/29/2023] Open
Abstract
Few studies have been able to elucidate the correlation of factors determining the strength of interaction between bacterial cells and substrate at the molecular level. The aim was to answer the following question: What biophysical factors should be considered when analyzing the bacterial adhesion strength on titanium surfaces and its alloys for implants quantified by atomic force microscopy? This review followed PRISMA. The search strategy was applied in four databases. The selection process was carried out in two stages. The risk of bias was analyzed. One thousand four hundred sixty-three articles were found. After removing the duplicates, 1126 were screened by title and abstract, of which 57 were selected for full reading and 5 were included; 3 had a low risk of bias and 2 moderated risks of bias. (1) The current literature shows the preference of bacteria to adhere to surfaces of the same hydrophilicity. However, this fact was contradicted by this systematic review, which demonstrated that hydrophobic bacteria developed hydrogen bonds and adhered to hydrophilic surfaces; (2) the application of surface treatments that induce the reduction of areas favorable for bacterial adhesion interfere more in the formation of biofilm than surface roughness; and (3) bacterial colonization should be evaluated in time-dependent studies as they develop adaptation mechanisms, related to time, which are obscure in this review.
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Affiliation(s)
- Juliana Dias Corpa Tardelli
- Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto 14040-904, Brazil
| | - Vanderlei Salvador Bagnato
- Department of Physics and Materials Science, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos 13566-970, Brazil
| | - Andréa Cândido Dos Reis
- Department of Dental Materials and Prosthesis, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto 14040-904, Brazil
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Malheiros SS, Nagay BE, Bertolini MM, de Avila ED, Shibli JA, Souza JGS, Barão VAR. Biomaterial engineering surface to control polymicrobial dental implant-related infections: focusing on disease modulating factors and coatings development. Expert Rev Med Devices 2023:1-17. [PMID: 37228179 DOI: 10.1080/17434440.2023.2218547] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/29/2023] [Accepted: 05/23/2023] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Peri-implantitis is the leading cause of dental implant loss and is initiated by a polymicrobial dysbiotic biofilm formation on the implant surface. The destruction of peri-implant tissue by the host immune response and the low effectiveness of surgical or non-surgical treatments highlight the need for new strategies to prevent, modulate and/or eliminate biofilm formation on the implant surface. Currently, several surface modifications have been proposed using biomolecules, ions, antimicrobial agents, and topography alterations. AREAS COVERED Initially, this review provides an overview of the etiopathogenesis and host- and material-dependent modulating factors of peri-implant disease. In addition, a critical discussion about the antimicrobial surface modification mechanisms and techniques employed to modify the titanium implant material is provided. Finally, we also considered the future perspectives on the development of antimicrobial surfaces to narrow the bridge between idea and product and favor the clinical application possibility. EXPERT OPINION Antimicrobial surface modifications have demonstrated effective results; however, there is no consensus about the best modification strategy and in-depth information on the safety and longevity of the antimicrobial effect. Modified surfaces display recurring challenges such as short-term effectiveness, the burst release of drugs, cytotoxicity, and lack of reusability. Stimulus-responsive surfaces seem to be a promising strategy for a controlled and precise antimicrobial effect, and future research should focus on this technology and study it from models that better mimic clinical conditions.
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Affiliation(s)
- Samuel S Malheiros
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Bruna E Nagay
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
| | - Martinna M Bertolini
- Department of Periodontics and Preventive Dentistry, School of Dental Medicine, University of Pittsburgh, Pittsburgh, PA 15106, USA
| | - Erica D de Avila
- Department of Dental Materials and Prosthodontics, School of Dentistry at Araçatuba, São Paulo State University (UNESP), Araçatuba, Sao Paulo 16015-050, Brazil
| | - Jamil A Shibli
- Dental Research Division, Guarulhos University, Guarulhos, São Paulo 07023-070, Brazil
| | - João Gabriel S Souza
- Dental Research Division, Guarulhos University, Guarulhos, São Paulo 07023-070, Brazil
- Dental Science School (Faculdade de Ciências Odontológicas - FCO), Montes Claros, Minas Gerais39401-303, Brazil
| | - Valentim A R Barão
- Department of Prosthodontics and Periodontology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo 13414-903, Brazil
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A pH-Responsive Asymmetric Microfluidic/Chitosan Device for Drug Release in Infective Bone Defect Treatment. Int J Mol Sci 2023; 24:ijms24054616. [PMID: 36902046 PMCID: PMC10003349 DOI: 10.3390/ijms24054616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/12/2023] [Accepted: 02/17/2023] [Indexed: 03/02/2023] Open
Abstract
Bacterial infection is currently considered to be one of the major reasons that leads to the failure of guided bone regeneration (GBR) therapy. Under the normal condition, the pH is neutral, while the microenvironment will become acid at the sites of infection. Here, we present an asymmetric microfluidic/chitosan device that can achieve pH-responsive drug release to treat bacterial infection and promote osteoblast proliferation at the same time. On-demand release of minocycline relies on a pH-sensitive hydrogel actuator, which swells significantly when exposed to the acid pH of an infected region. The PDMAEMA hydrogel had pronounced pH-sensitive properties, and a large volume transition occurred at pH 5 and 6. Over 12 h, the device enabled minocycline solution flowrates of 0.51-1.63 µg/h and 0.44-1.13 µg/h at pH 5 and 6, respectively. The asymmetric microfluidic/chitosan device exhibited excellent capabilities for inhibiting Staphylococcus aureus and Streptococcus mutans growth within 24 h. It had no negative effect on proliferation and morphology of L929 fibroblasts and MC3T3-E1 osteoblasts, which indicates good cytocompatibility. Therefore, such a pH-responsive drug release asymmetric microfluidic/chitosan device could be a promising therapeutic approach in the treatment of infective bone defects.
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Dong Y, Yao L, Cai L, Jin M, Forouzanfar T, Wu L, Liu J, Wu G. Antimicrobial and Pro-Osteogenic Coaxially Electrospun Magnesium Oxide Nanoparticles-Polycaprolactone /Parathyroid Hormone-Polycaprolactone Composite Barrier Membrane for Guided Bone Regeneration. Int J Nanomedicine 2023; 18:369-383. [PMID: 36700148 PMCID: PMC9869899 DOI: 10.2147/ijn.s395026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/24/2022] [Indexed: 01/21/2023] Open
Abstract
Introduction An antibacterial and pro-osteogenic coaxially electrospun nanofiber guided bone regeneration (GBR) membrane was fabricated to satisfy the complicated and phased requirements of GBR process. Methods In this study, we synthesize dual-functional coaxially electrospun nanofiber GBR membranes by encapsulating parathyroid hormone (PTH) in the core layer and magnesium oxide nanoparticles (MgONPs) in the shell layer (MgONPs-PCL/PTH-PCL). Herein, the physicochemical characterization of MgONPs-PCL/PTH-PCL, the release rates of MgONPs and PTH, and antibacterial efficiency of the new membrane were evaluated. Furthermore, the pro-osteogenicity of the membranes was assessed both in-vitro and in-vivo. Results We successfully fabricated a coaxially electrospun nanofiber MgONPs-PCL/PTH-PCL membrane with the majority of nanofibers (>65%) ranged from 0.40~0.60μm in diameter. MgONPs-PCL/PTH-PCL showed outstanding antibacterial potential against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) through the release of MgONPs. We also discovered that the incorporation of MgONPs significantly prolonged the release of PTH. Furthermore, both the in-vivo and in-vitro studies demonstrated that high dosage of PTH promoted pro-osteogenicity of the membrane to improve bone regeneration efficacy with the presence of MgONPs. Conclusion The new composite membrane is a promising approach to enhance bone regeneration in periodontitis or peri-implantitis patients with large-volume bone defects.
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Affiliation(s)
- Yiwen Dong
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Litao Yao
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands,Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People’s Republic of China,Correspondence: Litao Yao, Department of Dentistry, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China, Zhejiang, Email
| | - Lei Cai
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Mi Jin
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Tymour Forouzanfar
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
| | - Lianjun Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, People’s Republic of China,Jinsong Liu, School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, People’s Republic of China, Email
| | - Gang Wu
- Department of Oral and Maxillofacial Surgery/Pathology, Amsterdam UMC and Academic Center for Dentistry Amsterdam (ACTA), Vrije Universiteit Amsterdam, Amsterdam Movement Science, Amsterdam, Amsterdam, the Netherlands,Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam (UvA) and Vrije Universiteit Amsterdam (VU), Amsterdam, the Netherlands
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Zhong Y, Zheng XT, Zhao S, Su X, Loh XJ. Stimuli-Activable Metal-Bearing Nanomaterials and Precise On-Demand Antibacterial Strategies. ACS NANO 2022; 16:19840-19872. [PMID: 36441973 DOI: 10.1021/acsnano.2c08262] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Bacterial infections remain the leading cause of death worldwide today. The emergence of antibiotic resistance has urged the development of alternative antibacterial technologies to complement or replace traditional antibiotic treatments. In this regard, metal nanomaterials have attracted great attention for their controllable antibacterial functions that are less prone to resistance. This review discusses a particular family of stimuli-activable metal-bearing nanomaterials (denoted as SAMNs) and the associated on-demand antibacterial strategies. The various SAMN-enabled antibacterial strategies stem from basic light and magnet activation, with the addition of bacterial microenvironment responsiveness and/or bacteria-targeting selectivity and therefore offer higher spatiotemporal controllability. The discussion focuses on nanomaterial design principles, antibacterial mechanisms, and antibacterial performance, as well as emerging applications that desire on-demand and selective activation (i.e., medical antibacterial treatments, surface anti-biofilm, water disinfection, and wearable antibacterial materials). The review concludes with the authors' perspectives on the challenges and future directions for developing industrial translatable next-generation antibacterial strategies.
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Affiliation(s)
- Yingying Zhong
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
| | - Xin Ting Zheng
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
| | - Suqing Zhao
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, People's Republic of China
| | - Xiaodi Su
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
- Department of Chemistry, National University of Singapore, Block S8, Level 3, 3 Science Drive 3, 117543 Singapore
| | - Xian Jun Loh
- Institute of Materials Research and Engineering, Agency for Science Technology and Research (A*STAR), 138634 Singapore
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11
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Mahmoudi P, Akbarpour MR, Lakeh HB, Jing F, Hadidi MR, Akhavan B. Antibacterial Ti-Cu implants: A critical review on mechanisms of action. Mater Today Bio 2022; 17:100447. [PMID: 36278144 PMCID: PMC9579810 DOI: 10.1016/j.mtbio.2022.100447] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
Titanium (Ti) has been widely used for manufacturing of bone implants because of its mechanical properties, biological compatibility, and favorable corrosion resistance in biological environments. However, Ti implants are prone to infection (peri-implantitis) by bacteria which in extreme cases necessitate painful and costly revision surgeries. An emerging, viable solution for this problem is to use copper (Cu) as an antibacterial agent in the alloying system of Ti. The addition of copper provides excellent antibacterial activities, but the underpinning mechanisms are still obscure. This review sheds light on such mechanisms and reviews how incorporation of Cu can render Ti-Cu implants with antibacterial activity. The review first discusses the fundamentals of interactions between bacteria and implanted surfaces followed by an overview of the most common engineering strategies utilized to endow an implant with antibacterial activity. The underlying mechanisms for antibacterial activity of Ti-Cu implants are then discussed in detail. Special attention is paid to contact killing mechanisms because the misinterpretation of this mechanism is the root of discrepancies in the literature.
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Affiliation(s)
- Pezhman Mahmoudi
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, 11365-9466, Iran
| | - Mohammad Reza Akbarpour
- Department of Materials Engineering, University of Maragheh, Maragheh, P.O. Box 55136-553, Iran
| | | | - Fengjuan Jing
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China
| | - Mohammad Reza Hadidi
- School of Mechanical and Aerospace Engineering, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Behnam Akhavan
- School of Engineering, University of Newcastle, Callaghan, NSW, 2308, Australia
- Hunter Medical Research Institute (HMRI), Precision Medicine Research Program, New Lambton Heights, NSW, 2305, Australia
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12
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Fiore L, Vitiello R, Perna A, Maccauro G, Arduini F. Fast and reliable infection diagnosis during orthopaedic surgery using Bluetooth-assisted miniaturized-electrochemical sensor. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Alavi SE, Raza A, Gholami M, Giles M, Al-Sammak R, Ibrahim A, Ebrahimi Shahmabadi H, Sharma LA. Advanced Drug Delivery Platforms for the Treatment of Oral Pathogens. Pharmaceutics 2022; 14:2293. [PMID: 36365112 PMCID: PMC9692332 DOI: 10.3390/pharmaceutics14112293] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 08/26/2023] Open
Abstract
The oral cavity is a complex ecosystem accommodating various microorganisms (e.g., bacteria and fungi). Various factors, such as diet change and poor oral hygiene, can change the composition of oral microbiota, resulting in the dysbiosis of the oral micro-environment and the emergence of pathogenic microorganisms, and consequently, oral infectious diseases. Systemic administration is frequently used for drug delivery in the treatment of diseases and is associated with the problems, such as drug resistance and dysbiosis. To overcome these challenges, oral drug delivery systems (DDS) have received considerable attention. In this literature review, the related articles are identified, and their findings, in terms of current therapeutic challenges and the applications of DDSs, especially nanoscopic DDSs, for the treatment of oral infectious diseases are highlighted. DDSs are also discussed in terms of structures and therapeutic agents (e.g., antibiotics, antifungals, antiviral, and ions) that they deliver. In addition, strategies (e.g., theranostics, hydrogel, microparticle, strips/fibers, and pH-sensitive nanoparticles), which can improve the treatment outcome of these diseases, are highlighted.
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Affiliation(s)
- Seyed Ebrahim Alavi
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
| | - Aun Raza
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, China
| | - Max Gholami
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
| | - Michael Giles
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
| | - Rayan Al-Sammak
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
| | - Ali Ibrahim
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
| | - Hasan Ebrahimi Shahmabadi
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan 7717933777, Iran
| | - Lavanya A. Sharma
- School of Medicine and Dentistry, Griffith University, Gold Coast, QLD 4215, Australia
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14
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Dsouza A, Constantinidou C, Arvanitis TN, Haddleton DM, Charmet J, Hand RA. Multifunctional Composite Hydrogels for Bacterial Capture, Growth/Elimination, and Sensing Applications. ACS APPLIED MATERIALS & INTERFACES 2022; 14:47323-47344. [PMID: 36222596 PMCID: PMC9614723 DOI: 10.1021/acsami.2c08582] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
Hydrogels are cross-linked networks of hydrophilic polymer chains with a three-dimensional structure. Owing to their unique features, the application of hydrogels for bacterial/antibacterial studies and bacterial infection management has grown in importance in recent years. This trend is likely to continue due to the rise in bacterial infections and antimicrobial resistance. By exploiting their physicochemical characteristics and inherent nature, hydrogels have been developed to achieve bacterial capture and detection, bacterial growth or elimination, antibiotic delivery, or bacterial sensing. Traditionally, the development of hydrogels for bacterial/antibacterial studies has focused on achieving a single function such as antibiotic delivery, antibacterial activity, bacterial growth, or bacterial detection. However, recent studies demonstrate the fabrication of multifunctional hydrogels, where a single hydrogel is capable of performing more than one bacterial/antibacterial function, or composite hydrogels consisting of a number of single functionalized hydrogels, which exhibit bacterial/antibacterial function synergistically. In this review, we first highlight the hydrogel features critical for bacterial studies and infection management. Then, we specifically address unique hydrogel properties, their surface/network functionalization, and their mode of action for bacterial capture, adhesion/growth, antibacterial activity, and bacterial sensing, respectively. Finally, we provide insights into different strategies for developing multifunctional hydrogels and how such systems can help tackle, manage, and understand bacterial infections and antimicrobial resistance. We also note that the strategies highlighted in this review can be adapted to other cell types and are therefore likely to find applications beyond the field of microbiology.
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Affiliation(s)
- Andrea Dsouza
- Warwick
Manufacturing Group, The University of Warwick, Coventry, United Kingdom CV4 7AL
| | | | - Theodoros N. Arvanitis
- Institute
of Digital Healthcare, Warwick Manufacturing Group, The University of Warwick, Coventry, United Kingdom CV4 7AL
| | - David M. Haddleton
- Department
of Chemistry, The University of Warwick, Coventry, United Kingdom CV4 7AL
| | - Jérôme Charmet
- Warwick
Manufacturing Group, The University of Warwick, Coventry, United Kingdom CV4 7AL
- Warwick
Medical School, The University of Warwick, Coventry, United Kingdom CV4 7AL
- School
of Engineering—HE-Arc Ingénierie, HES-SO University of Applied Sciences Western Switzerland, 2000 Neuchâtel, Switzerland
| | - Rachel A. Hand
- Department
of Chemistry, The University of Warwick, Coventry, United Kingdom CV4 7AL
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15
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Smart Bacteria-Responsive Drug Delivery Systems in Medical Implants. J Funct Biomater 2022; 13:jfb13040173. [PMID: 36278642 PMCID: PMC9589986 DOI: 10.3390/jfb13040173] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
With the rapid development of implantable biomaterials, the rising risk of bacterial infections has drawn widespread concern. Due to the high recurrence rate of bacterial infections and the issue of antibiotic resistance, the common treatments of peri-implant infections cannot meet the demand. In this context, stimuli-responsive biomaterials have attracted attention because of their great potential to spontaneously modulate the drug releasing rate. Numerous smart bacteria-responsive drug delivery systems (DDSs) have, therefore, been designed to temporally and spatially release antibacterial agents from the implants in an autonomous manner at the infected sites. In this review, we summarized recent advances in bacteria-responsive DDSs used for combating bacterial infections, mainly according to the different trigger modes, including physical stimuli-responsive, virulence-factor-responsive, host-immune-response responsive and their combinations. It is believed that the smart bacteria-responsive DDSs will become the next generation of mainstream antibacterial therapies.
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16
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Liu S, Chen X, Yu M, Li J, Liu J, Xie Z, Gao F, Liu Y. Applications of Titanium Dioxide Nanostructure in Stomatology. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27123881. [PMID: 35745007 PMCID: PMC9229536 DOI: 10.3390/molecules27123881] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/16/2022]
Abstract
Breakthroughs in the field of nanotechnology, especially in nanochemistry and nanofabrication technologies, have been attracting much attention, and various nanomaterials have recently been developed for biomedical applications. Among these nanomaterials, nanoscale titanium dioxide (nano-TiO2) has been widely valued in stomatology due to the fact of its excellent biocompatibility, antibacterial activity, and photocatalytic activity as well as its potential use for applications such as dental implant surface modification, tissue engineering and regenerative medicine, drug delivery carrier, dental material additives, and oral tumor diagnosis and treatment. However, the biosafety of nano-TiO2 is controversial and has become a key constraint in the development of nano-TiO2 applications in stomatology. Therefore, in this review, we summarize recent research regarding the applications of nano-TiO2 in stomatology, with an emphasis on its performance characteristics in different fields, and evaluations of the biological security of nano-TiO2 applications. In addition, we discuss the challenges, prospects, and future research directions regarding applications of nano-TiO2 in stomatology that are significant and worthy of further exploration.
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Affiliation(s)
- Shuang Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Xingzhu Chen
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Mingyue Yu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Jianing Li
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Jinyao Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Zunxuan Xie
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
| | - Fengxiang Gao
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130000, China
- Correspondence: (F.G.); (Y.L.); Tel.: +86-13756189633 (F.G.); +86-13756466950 (Y.L.)
| | - Yuyan Liu
- Department of Endodontics, Hospital of Stomatology, Jilin University, Changchun 130000, China; (S.L.); (X.C.); (M.Y.); (J.L.); (J.L.); (Z.X.)
- Correspondence: (F.G.); (Y.L.); Tel.: +86-13756189633 (F.G.); +86-13756466950 (Y.L.)
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17
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Zhang C, Li X, Xiao D, Zhao Q, Chen S, Yang F, Liu J, Duan K. Cu 2+ Release from Polylactic Acid Coating on Titanium Reduces Bone Implant-Related Infection. J Funct Biomater 2022; 13:jfb13020078. [PMID: 35735933 PMCID: PMC9225639 DOI: 10.3390/jfb13020078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/27/2022] [Accepted: 06/09/2022] [Indexed: 12/04/2022] Open
Abstract
Implant-related infection (IRI) is a major problem in orthopedics. Copper (Cu) is an essential trace element with strong bactericidal activity and, thus, presents potential for reducing IRI. The present study explored a straightforward strategy for releasing Cu2+ from titanium (Ti) implants, and we conducted a preliminary study to assess the feasibility of this approach in clinical translation. Polylactic acid (PLA) coatings containing different concentrations of copper ions were prepared on Ti discs. The antibacterial activity and biocompatibility of the copper ion-incorporated Ti implants were evaluated using Staphylococcus aureus (S. aureus), bone marrow mesenchymal stem cells (BMSCs) and animal models. In vitro, the coatings produced burst release of Cu2+ in 12 h, and inhibited S. aureus growth in a dose-dependent manner. The coatings prepared from PLA solutions containing 0.5 or 1.0 mg/mL reduced the viability and osteogenic differentiation of BMSCs, but these effects were negated after the coatings were immersed in culture medium for 6 h. Four weeks after implantation, the Cu-free K-wires challenged with S. aureus had persistent infection and inferior fracture healing to the other three groups, while Cu-coated wires had no evidence of infection. Furthermore, the Cu-coated wires placed in rabbits without S. aureus challenge showed superior fracture healing to the other three groups. These results suggest that PLA coatings containing Cu2+ may be an effective design for reducing IRI without adversely affecting adjacent bone healing.
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Affiliation(s)
- Chengdong Zhang
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong 637000, China; (C.Z.); (Q.Z.); (S.C.); (F.Y.)
- Key Laboratory of Advanced Technologies of Materials (MOE), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
| | - Xingping Li
- Department of Orthopaedics, Chengfei Hospital, Chengdu 610091, China;
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong 637000, China; (C.Z.); (Q.Z.); (S.C.); (F.Y.)
- Correspondence: (D.X.); (K.D.)
| | - Qiao Zhao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong 637000, China; (C.Z.); (Q.Z.); (S.C.); (F.Y.)
| | - Shuo Chen
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong 637000, China; (C.Z.); (Q.Z.); (S.C.); (F.Y.)
| | - Fei Yang
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, The Second Clinical College of North Sichuan Medical College, Nanchong 637000, China; (C.Z.); (Q.Z.); (S.C.); (F.Y.)
| | - Jinhui Liu
- Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China;
| | - Ke Duan
- Sichuan Provincial Laboratory of Orthopaedic Engineering, Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou 646000, China;
- Correspondence: (D.X.); (K.D.)
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18
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Preparation and application of pH-responsive drug delivery systems. J Control Release 2022; 348:206-238. [PMID: 35660634 DOI: 10.1016/j.jconrel.2022.05.056] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/29/2022] [Accepted: 05/30/2022] [Indexed: 02/08/2023]
Abstract
Microenvironment-responsive drug delivery systems (DDSs) can achieve targeted drug delivery, reduce drug side effects and improve drug efficacies. Among them, pH-responsive DDSs have gained popularity since the pH in the diseased tissues such as cancer, bacterial infection and inflammation differs from a physiological pH of 7.4 and this difference could be harnessed for DDSs to release encapsulated drugs specifically to these diseased tissues. A variety of synthetic approaches have been developed to prepare pH-sensitive DDSs, including introduction of a variety of pH-sensitive chemical bonds or protonated/deprotonated chemical groups. A myriad of nano DDSs have been explored to be pH-responsive, including liposomes, micelles, hydrogels, dendritic macromolecules and organic-inorganic hybrid nanoparticles, and micron level microspheres. The prodrugs from drug-loaded pH-sensitive nano DDSs have been applied in research on anticancer therapy and diagnosis of cancer, inflammation, antibacterial infection, and neurological diseases. We have systematically summarized synthesis strategies of pH-stimulating DDSs, illustrated commonly used and recently developed nanocarriers for these DDSs and covered their potential in different biomedical applications, which may spark new ideas for the development and application of pH-sensitive nano DDSs.
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19
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Hou J, Tamura Y, Lu HY, Takahashi Y, Kasugai S, Nakata H, Kuroda S. An In Vitro Evaluation of Selenium Nanoparticles on Osteoblastic Differentiation and Antimicrobial Properties against Porphyromonas gingivalis. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1850. [PMID: 35683706 PMCID: PMC9182271 DOI: 10.3390/nano12111850] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 01/27/2023]
Abstract
Despite numerous treatment methods, there is no gold standard for the treatment of peri-implantitis-an infectious peri-implant disease. Here, we examined selenium nanoparticles (SeNPs) at a wide range of concentrations to investigate their cytotoxicity, regulation of osteoblastic differentiation, and assessed the antibacterial effect against Porphyromonas gingivalis. SeNPs (mean size: 70 nm; shape: near-spherical; concentration: 0-2048 ppm) were tested against the MC3T3-E1 osteoblast precursor cell line and P. gingivalis red complex pathogen. Reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) analysis was used to evaluate the bone morphogenetic protein 2 (BMP-2) signaling pathway. SeNPs at concentrations of 2-16 ppm showed no obvious cytotoxicity and promoted good mineralization and calcification. SeNPs at concentrations 64 ppm and below influenced gene expression promoting osteoblastic differentiation, whereas at high concentrations inhibited the expression of Runt-related transcription factor 2 (Runx2). The growth of P. gingivalis was significantly inhibited at SeNP concentrations of more than 4 ppm. SeNPs at low concentrations promoted osteoblastic differentiation while strongly inhibiting peri-implantitis pathogen growth. This study represents one of the few in vitro assessments of SeNPs against a red complex pathogen and the regulatory effect on osteoblastic differentiation. The findings demonstrate SeNPs could potentially be used for future application on implant coating.
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Affiliation(s)
- Jason Hou
- Department of Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan; (J.H.); (H.-Y.L.); (S.K.)
| | - Yukihiko Tamura
- Department of Dental Pharmacology, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
| | - Hsin-Ying Lu
- Department of Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan; (J.H.); (H.-Y.L.); (S.K.)
| | - Yuta Takahashi
- Dental Hospital Clinical Laboratory Division, Tokyo Medical and Dental University, Tokyo 113-8510, Japan;
| | - Shohei Kasugai
- Department of Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan; (J.H.); (H.-Y.L.); (S.K.)
| | - Hidemi Nakata
- Department of Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan; (J.H.); (H.-Y.L.); (S.K.)
| | - Shinji Kuroda
- Department of Oral Implantology and Regenerative Dental Medicine, Tokyo Medical and Dental University, Tokyo 113-8510, Japan; (J.H.); (H.-Y.L.); (S.K.)
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20
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Karthik C, Punnaivalavan KA, Prabha SP, Caroline DG. Multifarious global flora fabricated phytosynthesis of silver nanoparticles: a green nanoweapon for antiviral approach including SARS-CoV-2. INTERNATIONAL NANO LETTERS 2022; 12:313-344. [PMID: 35194512 PMCID: PMC8853038 DOI: 10.1007/s40089-022-00367-z] [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: 06/17/2021] [Accepted: 01/24/2022] [Indexed: 12/11/2022]
Abstract
The progressive research into the nanoscale level upgrades the higher end modernized evolution with every field of science, engineering, and technology. Silver nanoparticles and their broader range of application from nanoelectronics to nano-drug delivery systems drive the futuristic direction of nanoengineering and technology in contemporary days. In this review, the green synthesis of silver nanoparticles is the cornerstone of interest over physical and chemical methods owing to its remarkable biocompatibility and idiosyncratic property engineering. The abundant primary and secondary plant metabolites collectively as multifarious phytochemicals which are more peculiar in the composition from root hair to aerial apex through various interspecies and intraspecies, capable of reduction, and capping with the synthesis of silver nanoparticles. Furthermore, the process by which intracellular, extracellular biological macromolecules of the microbiota reduce with the synthesis of silver nanoparticles from the precursor molecule is also discussed. Viruses are one of the predominant infectious agents that gets faster resistance to the antiviral therapies of traditional generations of medicine. We discuss the various stages of virus targeting of cells and viral target through drugs. Antiviral potential of silver nanoparticles against different classes and families of the past and their considerable candidate for up-to-the-minute need of complete addressing of the fulminant and opportunistic global pandemic of this millennium SARS-CoV2, illustrated through recent silver-based formulations under development and approval for countering the pandemic situation. Graphical abstract
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Affiliation(s)
- C. Karthik
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
| | - K. A. Punnaivalavan
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
| | - S. Pandi Prabha
- Department of Biotechnology, Sri Venkateswara College of Engineering, Sriperumbudur Taluk, Chennai, 602117 Tamil Nadu India
| | - D. G. Caroline
- Department of Biotechnology, St. Joseph’s College of Engineering, Old Mamallapuram Road, Chennai, 600119 Tamil Nadu India
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21
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Zhang Y, Chen X, Li Y, Bai T, Li C, Jiang L, Liu Y, Sun C, Zhou W. Biomimetic Inorganic Nanoparticle-Loaded Silk Fibroin-Based Coating with Enhanced Antibacterial and Osteogenic Abilities. ACS OMEGA 2021; 6:30027-30039. [PMID: 34778674 PMCID: PMC8582041 DOI: 10.1021/acsomega.1c04734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
Poor osseointegration and infection are the main reasons leading to the failure of hard tissue implants; especially, in recent years, the failure rate has been increasing every year owing to the continuously increasing conditions such as injury, trauma, diseases, or infections. Therefore, the development of a biomimetic surface coating of bone tissues with antibacterial function is an effective means to improve bone healing and inhibit bacterial infection. Mimicking the natural bone, in this study, we have designed a silk fibroin (collagen-like structure)-based coating inlaid with nanohydroxyapatite (nHA) and silver nanoparticles (AgNPs) for promoting antibacterial ability and osteogenesis, especially focusing on the bone mimetic structure for enhancing bone health. Observing the morphology and size of the composite nanoparticles by transmission electron microscope (TEM), nHA provided nucleation sites for the formation of AgNPs, forming an nHA/AgNP complex with a size of about 100-200 nm. Characterization of the nHA/Ag-loaded silk fibroin biomimetic coating showed an increased surface roughness with good density and compact performances. The silk fibroin-based coating loaded with uniformly distributed AgNPs and nHA could effectively inhibit the adhesion of Staphylococcus aureus on the surface and, at the same time, quickly kill planktonic bacteria, indicating their good antibacterial ability. In vitro cell experiments revealed that the biomimetic silk fibroin-based coating was beneficial to the adhesion, spreading, and proliferation of osteoblasts (MC3T3-E1). In addition, by characterizing LDH and ROS, it was found that the nHA/Ag complex could significantly reduce the cytotoxicity of AgNPs, and the osteoblasts on the coating surface maintained the structure intact.
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Affiliation(s)
- Yunpeng Zhang
- Heping
Hospital Affiliated to Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Xiaorong Chen
- Changzhi
Medical College, Changzhi 046000, Shanxi, China
| | - Yuan Li
- Heping
Hospital Affiliated to Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Tian Bai
- Shaanxi
Key Laboratory of Biomedical Metal Materials, Northwest Institute for Non-ferrous Metal Research, Xi’an 710016, China
| | - Chen Li
- Changzhi
Medical College, Changzhi 046000, Shanxi, China
| | - Lingyan Jiang
- Heping
Hospital Affiliated to Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Yu Liu
- Heping
Hospital Affiliated to Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Changying Sun
- Heping
Hospital Affiliated to Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Wenhao Zhou
- Shaanxi
Key Laboratory of Biomedical Metal Materials, Northwest Institute for Non-ferrous Metal Research, Xi’an 710016, China
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22
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Hosseinpour S, Nanda A, Walsh LJ, Xu C. Microbial Decontamination and Antibacterial Activity of Nanostructured Titanium Dental Implants: A Narrative Review. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2336. [PMID: 34578650 PMCID: PMC8471155 DOI: 10.3390/nano11092336] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/02/2021] [Accepted: 09/05/2021] [Indexed: 12/12/2022]
Abstract
Peri-implantitis is the major cause of the failure of dental implants. Since dental implants have become one of the main therapies for teeth loss, the number of patients with peri-implant diseases has been rising. Like the periodontal diseases that affect the supporting tissues of the teeth, peri-implant diseases are also associated with the formation of dental plaque biofilm, and resulting inflammation and destruction of the gingival tissues and bone. Treatments for peri-implantitis are focused on reducing the bacterial load in the pocket around the implant, and in decontaminating surfaces once bacteria have been detached. Recently, nanoengineered titanium dental implants have been introduced to improve osteointegration and provide an osteoconductive surface; however, the increased surface roughness raises issues of biofilm formation and more challenging decontamination of the implant surface. This paper reviews treatment modalities that are carried out to eliminate bacterial biofilms and slow their regrowth in terms of their advantages and disadvantages when used on titanium dental implant surfaces with nanoscale features. Such decontamination methods include physical debridement, chemo-mechanical treatments, laser ablation and photodynamic therapy, and electrochemical processes. There is a consensus that the efficient removal of the biofilm supplemented by chemical debridement and full access to the pocket is essential for treating peri-implantitis in clinical settings. Moreover, there is the potential to create ideal nano-modified titanium implants which exert antimicrobial actions and inhibit biofilm formation. Methods to achieve this include structural and surface changes via chemical and physical processes that alter the surface morphology and confer antibacterial properties. These have shown promise in preclinical investigations.
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Affiliation(s)
| | | | - Laurence J. Walsh
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia; (S.H.); (A.N.)
| | - Chun Xu
- School of Dentistry, The University of Queensland, Herston, QLD 4006, Australia; (S.H.); (A.N.)
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23
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Ghimire A, Song J. Anti-Periprosthetic Infection Strategies: From Implant Surface Topographical Engineering to Smart Drug-Releasing Coatings. ACS APPLIED MATERIALS & INTERFACES 2021; 13:20921-20937. [PMID: 33914499 PMCID: PMC8130912 DOI: 10.1021/acsami.1c01389] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Despite advanced implant sterilization and aseptic surgical techniques, periprosthetic bacterial infection remains a major challenge for orthopedic and dental implants. Bacterial colonization/biofilm formation around implants and their invasion into the dense skeletal tissue matrices are difficult to treat and could lead to implant failure and osteomyelitis. These complications require major revision surgeries and extended antibiotic therapies that are associated with high treatment cost, morbidity, and even mortality. Effective preventative measures mitigating risks for implant-related infections are thus in dire need. This review focuses on recent developments of anti-periprosthetic infection strategies aimed at either reducing bacterial adhesion, colonization, and biofilm formation or killing bacteria directly in contact with and/or in the vicinity of implants. These goals are accomplished through antifouling, quorum-sensing interfering, or bactericidal implant surface topographical engineering or surface coatings through chemical modifications. Surface topographical engineering of lotus leaf mimicking super-hydrophobic antifouling features and cicada wing-mimicking, bacterium-piercing nanopillars are both presented. Conventional physical coating/passive release of bactericidal agents is contrasted with their covalent tethering to implant surfaces through either stable linkages or linkages labile to bacterial enzyme cleavage or environmental perturbations. Pros and cons of these emerging anti-periprosthetic infection approaches are discussed in terms of their safety, efficacy, and translational potentials.
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Affiliation(s)
- Ananta Ghimire
- Department of Orthopedics and Physical Rehabilitation, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Jie Song
- Department of Orthopedics and Physical Rehabilitation, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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24
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Jayasree A, Ivanovski S, Gulati K. ON or OFF: Triggered therapies from anodized nano-engineered titanium implants. J Control Release 2021; 333:521-535. [DOI: 10.1016/j.jconrel.2021.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/13/2022]
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25
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Zhang Z, Li Y, He P, Liu F, Li L, Zhang H, Ji P, Yang S. Nanotube-decorated hierarchical tantalum scaffold promoted early osseointegration. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2021; 35:102390. [PMID: 33857685 DOI: 10.1016/j.nano.2021.102390] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/24/2021] [Accepted: 03/16/2021] [Indexed: 01/28/2023]
Abstract
This study aimed to fabricate a hierarchical tantalum scaffold mimicking natural bone structure to enhance osseointegration. Porous tantalum scaffolds (p-Ta) with microgradients were fabricated by selective laser melting according to a computer-aided design model. Electrochemical anodization produced nanotubes on the p-Ta surface (p-Ta-nt). SEM verified the construction of a unique nanostructure on p-Ta-nt. Contact angle and protein adsorption measurements demonstrated that p-Ta-nt have enhanced hydrophilicity and protein absorption. MC3T3-E1 preosteoblasts showed increased filamentous pseudopods and comparable cell proliferation when cultured on p-Ta-nt. Osteogenic marker gene (Osterix, Runx2, COL-I) transcription was significantly upregulated in MC3T3-E1 cells cultured on p-Ta-nt after 7 days. After implantation into the femurs of New Zealand white rabbits for 2 weeks, histological examination found improved early osseointegration in the p-Ta-nt group. This study showed that a hierarchical tantalum structure could enhance early osteogenic effects in vitro and in vivo.
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Affiliation(s)
- Zhiyi Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yuzhou Li
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Ping He
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Fengyi Liu
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Lingjie Li
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - He Zhang
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
| | - Ping Ji
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
| | - Sheng Yang
- College of Stomatology, Chongqing Medical University, Chongqing, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China.
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26
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Liu Z, Liu X, Ramakrishna S. Surface engineering of biomaterials in orthopedic and dental implants: Strategies to improve osteointegration, bacteriostatic and bactericidal activities. Biotechnol J 2021; 16:e2000116. [PMID: 33813785 DOI: 10.1002/biot.202000116] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 03/23/2021] [Accepted: 03/30/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND The success of biomedical implants in orthopedic and dental applications is usually limited due to insufficient bone-implant integration, and implant-related infections. Biointerfaces are critical in regulating their interactions and the desirable performance of biomaterials in biological environment. Surface engineering has been widely studied to realize better control of the interface interaction to further enhance the desired behavior of biomaterials. PURPOSE AND SCOPE This review aims to investigate surface coating strategies in hard tissue applications to address insufficient osteointegration and implant-related infection problems. SUMMARY We first focused on surface coatings to enhance the osteointegration and biocompatibility of implants by emphasizing calcium phosphate-related, nanoscale TiO2 -related, bioactive tantalum-based and biomolecules incorporated coatings. Different coating strategies such as plasma spraying, biomimetic deposition, electrochemical anodization and LENS are discussed. We then discussed techniques to construct anti-adhesive and bactericidal surface while emphasizing multifunctional surface coating techniques that combine potential osteointegration and antibacterial activities. The effects of nanotopography via TiO2 coatings on antibacterial performance are interesting and included. A smart bacteria-responsive titanium dioxide nanotubes coating is also attractive and elaborated. CONCLUSION Developing multifunctional surface coatings combining osteogenesis and antimicrobial activity is the current trend. Surface engineering methods are usually combined to obtain hierarchical multiscale surface structures with better biofunctionalization outcomes.
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Affiliation(s)
- Ziqian Liu
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo, China.,Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Xiaoling Liu
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo, China
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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27
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Chen Z, Wang Z, Qiu W, Fang F. Overview of Antibacterial Strategies of Dental Implant Materials for the Prevention of Peri-Implantitis. Bioconjug Chem 2021; 32:627-638. [PMID: 33779151 DOI: 10.1021/acs.bioconjchem.1c00129] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
As dental implants have become one of the main treatment options for patients with tooth loss, the number of patients with peri-implant diseases has increased. Similar to periodontal diseases, peri-implant diseases have been associated with dental plaque formation on implants. Unconventional approaches have been reported to remove plaque from infected implants, but none of these methods can completely and permanently solve the problem of bacterial invasion. Fortunately, the constant development of antibacterial implant materials is a promising solution to this situation. In this review, the development and study of different antibacterial strategies for dental implant materials for the prevention of peri-implantitis are summarized. We hope that by highlighting the advantages and limitations of these antimicrobial strategies, we can assist in the continued development of oral implant materials.
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Affiliation(s)
- Zehao Chen
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, P.R. China
| | - Zhaodan Wang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, P.R. China
| | - Wei Qiu
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, P.R. China
| | - Fuchun Fang
- Department of Stomatology, Nanfang Hospital, Southern Medical University, 1838 Guangzhou Avenue North, Guangzhou, 510515, P.R. China
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28
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Fan X, Yahia L, Sacher E. Antimicrobial Properties of the Ag, Cu Nanoparticle System. BIOLOGY 2021; 10:137. [PMID: 33578705 PMCID: PMC7916421 DOI: 10.3390/biology10020137] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Revised: 02/03/2021] [Accepted: 02/07/2021] [Indexed: 12/11/2022]
Abstract
Microbes, including bacteria and fungi, easily form stable biofilms on many surfaces. Such biofilms have high resistance to antibiotics, and cause nosocomial and postoperative infections. The antimicrobial and antiviral behaviors of Ag and Cu nanoparticles (NPs) are well known, and possible mechanisms for their actions, such as released ions, reactive oxygen species (ROS), contact killing, the immunostimulatory effect, and others have been proposed. Ag and Cu NPs, and their derivative NPs, have different antimicrobial capacities and cytotoxicities. Factors, such as size, shape and surface treatment, influence their antimicrobial activities. The biomedical application of antimicrobial Ag and Cu NPs involves coating onto substrates, including textiles, polymers, ceramics, and metals. Because Ag and Cu are immiscible, synthetic AgCu nanoalloys have different microstructures, which impact their antimicrobial effects. When mixed, the combination of Ag and Cu NPs act synergistically, offering substantially enhanced antimicrobial behavior. However, when alloyed in Ag-Cu NPs, the antimicrobial behavior is even more enhanced. The reason for this enhancement is unclear. Here, we discuss these results and the possible behavior mechanisms that underlie them.
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Affiliation(s)
- Xinzhen Fan
- Laboratoire d’Innovation et d’Analyse de Bioperformance, Département de Génie Mécanique, Polytechnique Montréal, CP 6079, Succursale C-V, Montréal, QC H3C 3A7, Canada; (X.F.); (L.Y.)
| | - L’Hocine Yahia
- Laboratoire d’Innovation et d’Analyse de Bioperformance, Département de Génie Mécanique, Polytechnique Montréal, CP 6079, Succursale C-V, Montréal, QC H3C 3A7, Canada; (X.F.); (L.Y.)
| | - Edward Sacher
- Département de Génie Physique, Polytechnique Montréal, CP 6079, Succursale C-V, Montréal, QC H3C 3A7, Canada
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29
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Xu N, Fu J, Zhao L, Chu PK, Huo K. Biofunctional Elements Incorporated Nano/Microstructured Coatings on Titanium Implants with Enhanced Osteogenic and Antibacterial Performance. Adv Healthc Mater 2020; 9:e2000681. [PMID: 32875743 DOI: 10.1002/adhm.202000681] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/02/2020] [Indexed: 12/20/2022]
Abstract
Bone fracture is prevalent among athletes and senior citizens and may require surgical insertion of bone implants. Titanium (Ti) and its alloys are widely used in orthopedics due to its high corrosion resistance, good biocompatibility, and modulus compatible with natural bone tissues. However, bone repair and regrowth are impeded by the insufficient intrinsic osteogenetic capability of Ti and Ti alloys and potential bacterial infection. The physicochemical properties of the materials and nano/microstructures on the implant surface are crucial for clinical success and loading with biofunctional elements such as Sr, Zn, Cu, Si, and Ag into nano/microstructured TiO2 coating has been demonstrated to enhance bone repair/regeneration and bacterial resistance of Ti implants. In this review, recent advances in biofunctional element-incorporated nano/microstructured coatings on Ti and Ti alloy implants are described and the prospects and limitations are discussed.
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Affiliation(s)
- Na Xu
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Jijiang Fu
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Lingzhou Zhao
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases and Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Periodontology, School of Stomatology, The Fourth Military Medical University, Xi'an, 710032, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Kaifu Huo
- The State Key Laboratory of Refractories and Metallurgy, Institute of Advanced Materials and Nanotechnology, College of Life Sciences and Health, Wuhan University of Science and Technology, Wuhan, 430081, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
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30
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Kunrath MF, Diz FM, Magini R, Galárraga-Vinueza ME. Nanointeraction: The profound influence of nanostructured and nano-drug delivery biomedical implant surfaces on cell behavior. Adv Colloid Interface Sci 2020; 284:102265. [PMID: 33007580 DOI: 10.1016/j.cis.2020.102265] [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: 06/21/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023]
Abstract
Nanostructured surfaces feature promising biological properties on biomaterials attracting large interest at basic research, implant industry development, and bioengineering applications. Thou, nanoscale interactions at a molecular and cellular level are not yet completely understood and its biological and clinical implications need to be further elucidated. As follows, the aim of this comprehensive review was to evaluate nanostructured surfaces at biomedical implants focusing on surface development, nanostructuration, and nanoengineered drug delivery systems that can induce specific cell interactions in all relevant aspects of biological, reparative, anti-bacterial, anti-inflammatory and clinical processes. The methods and the physio-chemical properties involved in nanotopography performance, the main cellular characteristics involved at surface/cell interaction, and a summary of results and outlooks reported in studies applying nanostructured surfaces and nano-drug delivery systems is presented. The future prospects and commercial translation of this developing field, particularly concerning multifunctional nanostructured surfaces and its clinical implications are further discussed. At a cellular level, nanostructured biomedical implant surfaces can enhance osteogenesis by targeting osteoblasts, osteocytes, and mesenchymal cells, stimulate fibroblast/epithelial cells proliferation and adherence, inhibit bacterial cell proliferation and biofilm accumulation, and act as immune-modulating surfaces targeting macrophages and reducing pro-inflammatory cytokine expression. Moreover, several methodological options to create drug-delivery systems on metallic implant surfaces are available, however, the clinical translation is yet incomplete. The efficiency of which nanostructured/nano-delivery surfaces may target specific cell interactions and favor clinical outcomes needs to be further elucidated in pre-clinical and clinical studies, along with engineering solutions for commercial translation and approval of controlling agencies.
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31
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Cheng Y, Qiao Y, Shen P, Gao B, Liu X, Kong X, Zhang S, Wu J. Fabrication and in vitro biological activity of functional pH-sensitive double-layered nanoparticles for dental implant application. J Biomater Appl 2020; 34:1409-1421. [PMID: 32054386 DOI: 10.1177/0885328220903615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yicheng Cheng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Youbei Qiao
- Department of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Peng Shen
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
- Department of Stomatology, Clinical department of Aerospace City, Northern Beijing Medical District, Chinese PLA General Hospital, Beijing, China
| | - Bo Gao
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xianghui Liu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xiangwei Kong
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - Shaofeng Zhang
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jiang Wu
- Department of Stomatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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32
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Liang J, Peng X, Zhou X, Zou J, Cheng L. Emerging Applications of Drug Delivery Systems in Oral Infectious Diseases Prevention and Treatment. Molecules 2020; 25:E516. [PMID: 31991678 PMCID: PMC7038021 DOI: 10.3390/molecules25030516] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/27/2022] Open
Abstract
The oral cavity is a unique complex ecosystem colonized with huge numbers of microorganism species. Oral cavities are closely associated with oral health and sequentially with systemic health. Many factors might cause the shift of composition of oral microbiota, thus leading to the dysbiosis of oral micro-environment and oral infectious diseases. Local therapies and dental hygiene procedures are the main kinds of treatment. Currently, oral drug delivery systems (DDS) have drawn great attention, and are considered as important adjuvant therapy for oral infectious diseases. DDS are devices that could transport and release the therapeutic drugs or bioactive agents to a certain site and a certain rate in vivo. They could significantly increase the therapeutic effect and reduce the side effect compared with traditional medicine. In the review, emerging recent applications of DDS in the treatment for oral infectious diseases have been summarized, including dental caries, periodontitis, peri-implantitis and oral candidiasis. Furthermore, oral stimuli-responsive DDS, also known as "smart" DDS, have been reported recently, which could react to oral environment and provide more accurate drug delivery or release. In this article, oral smart DDS have also been reviewed. The limits have been discussed, and the research potential demonstrates good prospects.
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Affiliation(s)
| | | | | | - Jing Zou
- State Key Laboratory of Oral Diseases& West China School of Stomatology& National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610041, China; (J.L.); (X.P.); (X.Z.)
| | - Lei Cheng
- State Key Laboratory of Oral Diseases& West China School of Stomatology& National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610041, China; (J.L.); (X.P.); (X.Z.)
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33
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Li Y, Yang Y, Li R, Tang X, Guo D, Qing Y, Qin Y. Enhanced antibacterial properties of orthopedic implants by titanium nanotube surface modification: a review of current techniques. Int J Nanomedicine 2019; 14:7217-7236. [PMID: 31564875 PMCID: PMC6733344 DOI: 10.2147/ijn.s216175] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 08/09/2019] [Indexed: 11/23/2022] Open
Abstract
Prosthesis-associated infections are one of the main causes of implant failure; thus it is important to enhance the long-term antibacterial ability of orthopedic implants. Titanium dioxide nanotubes (TNTs) are biomaterials with good physicochemical properties and biocompatibility. Owing to their inherent antibacterial and drug-loading ability, the antibacterial application of TNTs has received increasing attention. In this review, the process of TNT anodizing fabrication is summarized. Also, the mechanism and the influencing factors of the antibacterial property of bare TNTs are explored. Furthermore, different antibacterial strategies for carrying drugs, as well as modifications to prolong the antibacterial effect and reduce drug-related toxicity are discussed. In addition, antibacterial systems based on TNTs that can automatically respond to infection are introduced. Finally, the currently faced problems are reviewed and potential solutions are proposed. This review provides new insight on TNT fabrication and summarizes the most advanced antibacterial strategies involving TNTs for the enhancement of long-term antibacterial ability and reduction of toxicity.
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Affiliation(s)
- Yuehong Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yue Yang
- Department of Cardiology, China-Japan Union Hospital of Jilin University, Changchun, People’s Republic of China
| | - Ruiyan Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Xiongfeng Tang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Deming Guo
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yun'an Qing
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
| | - Yanguo Qin
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun, People’s Republic of China
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34
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Bruneau M, Bennici S, Brendle J, Dutournie P, Limousy L, Pluchon S. Systems for stimuli-controlled release: Materials and applications. J Control Release 2019; 294:355-371. [DOI: 10.1016/j.jconrel.2018.12.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 01/15/2023]
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35
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Abstract
Paper presents study on the hydrothermal treatment for hydroxyapatite layer formation on the different biodegradable Mg-substrates. The evaluation of corrosion resistance in Ringer’s solution and contact angle measurements in glycerol were performed. Alloys and composites substrates obtained by mechanical alloying and powder metallurgy route are characterized by submicron range microstructure, which is responsible for further surface processing characteristic. Hydrothermal treatment in Ca-EDTA (ethylenediaminetetraacetic acid calcium disodium salt) led to formation of hydroxyapatite layers, which improves both the corrosion resistance and surface wetting properties compared to microcrystalline magnesium.
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36
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Bi W, Liu Y, Guo J, Lin Z, Liu J, Zhou M, Wismeijer D, Pathak JL, Wu G. All-trans retinoic-acid inhibits heterodimeric bone morphogenetic protein 2/7-stimulated osteoclastogenesis, and resorption activity. Cell Biosci 2018; 8:48. [PMID: 30159139 PMCID: PMC6107948 DOI: 10.1186/s13578-018-0246-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Accepted: 08/20/2018] [Indexed: 11/10/2022] Open
Abstract
Background Bone regenerative heterodimeric bone morphogenetic protein 2/7 (BMP2/7) enhances but all-trans retinoic acid (ATRA) inhibits osteoclastogenesis. However, the effect of ATRA on physiological and/or BMP2/7-induced osteoclastogenesis in still unclear. In this study, we aimed to test the effect of combined treatment of BMP2/7 and ATRA on osteoclastogenesis, and resorption activity. Results All-trans retinoic acid (1 µM) ± BMP2/7 (5 or 50 ng/ml) was added in murine pre-osteoclasts cell line RAW264.7 or mouse bone marrow derived macrophages (BMM) cultures. Osteoclast marker gene expression, osteoclastogenesis, and resorption activity were analyzed. BMP2/7 robustly enhanced osteoclast maker gene expression, osteoclastogenesis, and resorption activity. Interestingly, ATRA completely inhibited osteoclast formation in presence or absence of BMP2/7. Pan-antagonist of retinoic acid receptors (RARs) and antagonist of RARα, β or γ failed to reverse the inhibitory effect of ATRA on osteoclastogenesis. ATRA strongly inhibited Rank and Nfatc1 expression. Conclusions All-trans retinoic acid inhibits BMP2/7-induced osteoclastogenesis, and resorption activity possibly via RANKL-RANK pathway. Our findings from previous and current study suggest that combination of ATRA and BMP2/7 could be a novel approach to treat hyperactive osteoclast-induced bone loss such as in inflammation-induced severe osteoporosis and bone loss caused by cancer metastasis to bone.
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Affiliation(s)
- Wenjuan Bi
- 1School of Stomatology, North China University of Science and Technology, Tangshan, China
| | - Yi Liu
- 2Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China.,3Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Jing Guo
- 2Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhen Lin
- 4Department of Orthopedics, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Jinsong Liu
- 5School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, China
| | - Miao Zhou
- 2Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Daniel Wismeijer
- 3Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Janak L Pathak
- 2Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Affiliated Stomatology Hospital of Guangzhou Medical University, Guangzhou, China
| | - Gang Wu
- 3Department of Oral Implantology and Prosthetic Dentistry, Academic Centre of Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
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Qing Y, Cheng L, Li R, Liu G, Zhang Y, Tang X, Wang J, Liu H, Qin Y. Potential antibacterial mechanism of silver nanoparticles and the optimization of orthopedic implants by advanced modification technologies. Int J Nanomedicine 2018; 13:3311-3327. [PMID: 29892194 PMCID: PMC5993028 DOI: 10.2147/ijn.s165125] [Citation(s) in RCA: 434] [Impact Index Per Article: 72.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Infection, as a common postoperative complication of orthopedic surgery, is the main reason leading to implant failure. Silver nanoparticles (AgNPs) are considered as a promising antibacterial agent and always used to modify orthopedic implants to prevent infection. To optimize the implants in a reasonable manner, it is critical for us to know the specific antibacterial mechanism, which is still unclear. In this review, we analyzed the potential antibacterial mechanisms of AgNPs, and the influences of AgNPs on osteogenic-related cells, including cellular adhesion, proliferation, and differentiation, were also discussed. In addition, methods to enhance biocompatibility of AgNPs as well as advanced implants modifications technologies were also summarized.
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Affiliation(s)
- Yun’an Qing
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Lin Cheng
- Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Ruiyan Li
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Guancong Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Yanbo Zhang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Xiongfeng Tang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Jincheng Wang
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - He Liu
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
| | - Yanguo Qin
- Orthopaedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, People’s Republic of China
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Cheng Y, Yang H, Yang Y, Huang J, Wu K, Chen Z, Wang X, Lin C, Lai Y. Progress in TiO 2 nanotube coatings for biomedical applications: a review. J Mater Chem B 2018; 6:1862-1886. [PMID: 32254353 DOI: 10.1039/c8tb00149a] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Titanium dioxide nanotubes (TNTs) have drawn wide attention and been extensively applied in the field of biomedicine, due to their large specific surface area, good corrosion resistance, excellent biocompatibility, and enhanced bioactivity. This review describes the preparation of TNTs and the surface modification that entrust the nanotubes with better antibacterial property and enhanced osteoblast adhesion, proliferation, and differentiation. Considering the contact between TNTs' surface and surrounding tissues after implantation, the interactions between TNTs (with properties including their diameter, length, wettability, and crystalline phase) and proteins, platelets, bacteria, and cells are illustrated. The state of the art in the applications of TNTs in dentistry, orthopedic implants, and cardiovascular stents are introduced. In particular, the application of TNTs in biosensing has attracted much attention due to its ability for the rapid diagnosis of diseases. Finally, the difficulties and challenges in the practical application of TNTs are also discussed.
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Affiliation(s)
- Yan Cheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China.
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