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Park DS, Na MH, Jeong MH, Sim DS, Jin YJ, Kee HJ, Kim MK, Kim JH, Hong YJ, Cho KH, Hyun DY, Oh S, Lim KS, Byeon DH, Kim JH. Efficacy and Safety Evaluation of Tacrolimus-Eluting Stent in a Porcine Coronary Artery Model. Tissue Eng Regen Med 2024; 21:723-735. [PMID: 38834902 PMCID: PMC11187055 DOI: 10.1007/s13770-024-00646-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/16/2024] [Accepted: 04/21/2024] [Indexed: 06/06/2024] Open
Abstract
BACKGROUND A drug-eluting stent (DES) is a highly beneficial medical device used to widen or unblock narrowed blood vessels. However, the drugs released by the implantation of DES may hinder the re-endothelialization process, increasing the risk of late thrombosis. We have developed a tacrolimus-eluting stent (TES) that as acts as a potent antiproliferative and immunosuppressive agent, enhancing endothelial regeneration. In addition, we assessed the safety and efficacy of TES through both in vitro and in vivo tests. METHODS Tacrolimus and Poly(lactic-co-glycolic acid) (PLGA) were applied to the metal stent using electrospinning equipment. The surface morphology of the stent was examined before and after coating using a scanning electron microscope (SEM) and energy dispersive X-rays (EDX). The drug release test was conducted through high-performance liquid chromatography (HPLC). Cell proliferation and migration assays were performed using smooth muscle cells (SMC). The stent was then inserted into the porcine coronary artery and monitored for a duration of 4 weeks. RESULTS SEM analysis confirmed that the coating surface was uniform. Furthermore, EDX analysis showed that the surface was coated with both polymer and drug components. The HPCL analysis of TCL at a wavelength of 215 nm revealed that the drug was continuously released over a period of 4 weeks. Smooth muscle cell migration was significantly decreased in the tacrolimus group (54.1% ± 11.90%) compared to the non-treated group (90.1% ± 4.86%). In animal experiments, the stenosis rate was significantly reduced in the TES group (29.6% ± 7.93%) compared to the bare metal stent group (41.3% ± 10.18%). Additionally, the fibrin score was found to be lower in the TES group compared to the group treated with a sirolimus-eluting stent (SES). CONCLUSION Similar to SES, TES reduces neointimal proliferation in a porcine coronary artery model, specifically decreasing the fibrins score. Therefore, tacrolimus could be considered a promising drug for reducing restenosis and thrombosis.
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Affiliation(s)
- Dae Sung Park
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
- The Research Institute of Medical Sciences, Chonnam National University, Gwangju, Korea
| | - Mi Hyang Na
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
| | - Myung Ho Jeong
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea.
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea.
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea.
- Department of Cardiovascular Medicine, Chonnam National University Medical School, Gwangju, Korea.
- Department of Cardiovascular Center, Gwangju Veterans Hospital, Gwangju, Korea.
| | - Doo Sun Sim
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea.
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea.
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea.
- Department of Cardiovascular Medicine, Chonnam National University Medical School, Gwangju, Korea.
| | - Yu Jeong Jin
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
| | - Hae Jin Kee
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
| | - Mun Ki Kim
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
| | - Jeong Ha Kim
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
| | - Young Joon Hong
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Kyung Hoon Cho
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Dae Young Hyun
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Seok Oh
- The Korea Cardiovascular Stent Research Institute, Chonnam National University, Gwangju, Korea
- The Cardiovascular Convergence Research Center of Chonnam National University Hospital Designated by Korea Ministry of Health and Welfare, Gwangju, Korea
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea
| | - Kyung Seob Lim
- Futuristic Animal Resource & Research Center, Korea Research Institute of Bioscience and Biotechnology, Ochang, Korea
| | | | - Jeong Hun Kim
- Department of Cardiovascular Medicine, Chonnam National University Hospital, Gwangju, Korea
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Lee MK, Lee H, Kang MH, Hwang C, Kim HE, Oudega M, Jang TS, Jung HD. Bioinspired Nanotopography for Combinatory Osseointegration and Antibacterial Therapy. ACS APPLIED MATERIALS & INTERFACES 2024; 16:30967-30979. [PMID: 38857475 DOI: 10.1021/acsami.4c06351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2024]
Abstract
The ongoing global health has highlighted the critical issue of secondary infections, particularly antibiotic-resistant bacterial infections, which have been significant contributors to mortality rates. Orthopedic implants, while essential for trauma and orthopedic surgeries, are particularly susceptible to these infections, leading to severe complications and economic burdens. The traditional use of antibiotics in treating these infections poses further challenges including the risk of developing antibiotic-resistant bacteria. This study introduces a novel approach to combat this issue by developing nanostructured surfaces for orthopedic implants using target ion-induced plasma sputtering. Inspired by the natural design of dragonfly wings, these surfaces aim to prevent bacterial adhesion while promoting preosteoblast activity, offering a dual-function solution to the problems of bacterial infection and implant integration without relying on antibiotics. The in vitro results demonstrate the effectiveness of these bioinspired surfaces in eradicating bacteria and supporting cell proliferation and differentiation, presenting a promising alternative for the development of biomedical implants.
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Affiliation(s)
- Min-Kyu Lee
- Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, Illinois 60208, United States
- Shirley Ryan AbilityLab, Chicago, Illinois 60611, United States
- Department of Physical Medicine and Rehabilitation, Northwestern University, Chicago, Illinois 60611, United States
| | - Hyun Lee
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Min-Ho Kang
- Department of Biomedical-Chemical Engineering, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Changha Hwang
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Martin Oudega
- Shirley Ryan AbilityLab, Chicago, Illinois 60611, United States
- Department of Physical Therapy and Human Movement Sciences, Northwestern University, Chicago, Illinois 60611, United States
- Edward Hines Jr. VA Hospital, Hines, Illinois 60141, United States
- Department of Neuroscience, Northwestern University, Chicago, Illinois 60611, United States
| | - Tae-Sik Jang
- School of Biomedical Convergence Engineering, Pusan National University, Yangsan 50612, Republic of Korea
| | - Hyun-Do Jung
- Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Republic of Korea
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Li X, Zhu L, Che Z, Liu T, Yang C, Huang L. Progress of research on the surface functionalization of tantalum and porous tantalum in bone tissue engineering. Biomed Mater 2024; 19:042009. [PMID: 38838694 DOI: 10.1088/1748-605x/ad5481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 06/05/2024] [Indexed: 06/07/2024]
Abstract
Tantalum and porous tantalum are ideal materials for making orthopedic implants due to their stable chemical properties and excellent biocompatibility. However, their utilization is still affected by loosening, infection, and peripheral inflammatory reactions, which sometimes ultimately lead to implant removal. An ideal bone implant should have exceptional biological activity, which can improve the surrounding biological microenvironment to enhance bone repair. Recent advances in surface functionalization have produced various strategies for developing compatibility between either of the two materials and their respective microenvironments. This review provides a systematic overview of state-of-the-art strategies for conferring biological functions to tantalum and porous tantalum implants. Furthermore, the review describes methods for preparing active surfaces and different bioactive substances that are used, summarizing their functions. Finally, this review discusses current challenges in the development of optimal bone implant materials.
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Affiliation(s)
- Xudong Li
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Liwei Zhu
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Zhenjia Che
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Tengyue Liu
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Chengzhe Yang
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Lanfeng Huang
- The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
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Biological Characteristics of Polyurethane-Based Bone-Replacement Materials. Polymers (Basel) 2023; 15:polym15040831. [PMID: 36850115 PMCID: PMC9966979 DOI: 10.3390/polym15040831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/27/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023] Open
Abstract
A study is presented on four polymers of the polyurethane family, obtained using a two-stage process. The first composition is the basic polymer; the others differ from it by the presence of a variety of fillers, introduced to provide radiopacity. The fillers used were 15% bismuth oxide (Composition 2), 15% tantalum pentoxide (Composition 3), or 15% zirconium oxide (Composition 4). Using a test culture of human fibroblasts enabled the level of cytotoxicity of the compositions to be determined by MTT (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyl tetrazolium bromide) assay, along with variations in the characteristics of the cells resulting from their culture directly on the specimens. The condition of cells on the surfaces of the specimens was assessed using fluorescence microscopy. It was shown that introducing 15% bismuth, tantalum, or zinc compounds as fillers produced a range of effects on the biological characteristics of the compositions. With the different fillers, the levels of toxicity differed and the cells' proliferative activity or adhesion was affected. However, in general, all the studied compositions may be considered cytocompatible in respect of their biological characteristics and are promising for further development as bases for bone-substituting materials. The results obtained also open up prospects for further investigations of polyurethane compounds.
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Qian H, Yao Q, Pi L, Ao J, Lei P, Hu Y. Current Advances and Applications of Tantalum Element in Infected Bone Defects. ACS Biomater Sci Eng 2023; 9:1-19. [PMID: 36563349 DOI: 10.1021/acsbiomaterials.2c00884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Infected bone defects (IBDs) cause significant economic and psychological burdens, posing a huge challenge to clinical orthopedic surgeons. Traditional approaches for managing IBDs possess inevitable shortcomings; therefore, it is necessary to develop new functionalized scaffolds. Tantalum (Ta) has been widely used in load-bearing orthopedic implants due to its good biocompatibility and corrosion resistance. However, undecorated Ta could only structurally repair common bone defects, which failed to meet the clinical needs of bacteriostasis for IBDs. Researchers have made great efforts to functionalize Ta scaffolds to enhance their antibacterial activity through various methods, including surface coating, alloying, and micro- and nanostructure modifications. Additionally, several studies have successfully utilized Ta to modify orthopedic scaffolds for enhanced antibacterial function. These studies remarkably extended the application range of Ta. Therefore, this review systematically outlines the advances in the fundamental and clinical application of Ta in the treatment of IBDs, focusing on the antibacterial properties of Ta, its functionalization for bacteriostasis, and its applications in the modification of orthopedic scaffolds. This study provides researchers with an overview of the application of Ta in the treatment of IBDs.
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Affiliation(s)
- Hu Qian
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Qingshuang Yao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Lanping Pi
- Nursing Department, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Jun Ao
- Department of Orthopaedic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Pengfei Lei
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
| | - Yihe Hu
- Department of Orthopedic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang 310030, China
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Mohapatra SR, Rama E, Melcher C, Call T, Al Enezy-Ulbrich MA, Pich A, Apel C, Kiessling F, Jockenhoevel S. From In Vitro to Perioperative Vascular Tissue Engineering: Shortening Production Time by Traceable Textile-Reinforcement. Tissue Eng Regen Med 2022; 19:1169-1184. [PMID: 36201158 PMCID: PMC9679079 DOI: 10.1007/s13770-022-00482-0] [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: 04/28/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/01/2022] Open
Abstract
Background: The production of tissue-engineered vascular graft (TEVG) usually involves a prolonged bioreactor cultivation period of up to several weeks to achieve maturation of extracellular matrix and sufficient mechanical strength. Therefore, we aimed to substantially shorten this conditioning time by combining a TEVG textile scaffold with a recently developed copolymer reinforced fibrin gel as a cell carrier. We further implemented our grafts with magnetic resonance imaging (MRI) contrast agents to allow the in-vitro monitoring of the TEVG’s remodeling process. Methods: Biodegradable polylactic-co-glycolic acid (PLGA) was electrospun onto a non-degradable polyvinylidene fluoride scaffold and molded along with copolymer-reinforced fibrin hydrogel and human arterial cells. Mechanical tests on the TEVGs were performed both instantly after molding and 4 days of bioreactor conditioning. The non-invasive in vitro monitoring of the PLGA degradation and the novel imaging of fluorinated thermoplastic polyurethane (19F-TPU) were performed using 7T MRI. Results: After 4 days of close loop bioreactor conditioning, 617 ± 85 mmHg of burst pressure was achieved, and advanced maturation of extracellular matrix (ECM) was observed by immunohistology, especially in regards to collagen and smooth muscle actin. The suture retention strength (2.24 ± 0.3 N) and axial tensile strength (2.45 ± 0.58 MPa) of the TEVGs achieved higher values than the native arteries used as control. The contrast agents labeling of the TEVGs allowed the monitorability of the PLGA degradation and enabled the visibility of the non-degradable textile component. Conclusion: Here, we present a concept for a novel textile-reinforced TEVG, which is successfully produced in 4 days of bioreactor conditioning, characterized by increased ECM maturation and sufficient mechanical strength. Additionally, the combination of our approach with non-invasive imaging provides further insights into TEVG’s clinical application. Supplementary Information The online version contains supplementary material available at 10.1007/s13770-022-00482-0.
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Affiliation(s)
- Saurav Ranjan Mohapatra
- Department of Biohybrid and Medical Textiles (BioTex), Center for Biohybrid Medical Systems (CBMS), Institute for Applied Medical Engineering, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | - Elena Rama
- Institute for Experimental Molecular Imaging, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | - Christoph Melcher
- Institute for Textile Technology, RWTH Aachen University, Otto-Blumenthal-Str. 1, 52074, Aachen, Germany
| | - Tobias Call
- Department of Biohybrid and Medical Textiles (BioTex), Center for Biohybrid Medical Systems (CBMS), Institute for Applied Medical Engineering, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | | | - Andrij Pich
- DWI-Leibniz Institute for Interactive Materials, RWTH Aachen University, Forckenbeckstr. 50, 52074, Aachen, Germany
| | - Christian Apel
- Department of Biohybrid and Medical Textiles (BioTex), Center for Biohybrid Medical Systems (CBMS), Institute for Applied Medical Engineering, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | - Fabian Kiessling
- Institute for Experimental Molecular Imaging, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany
| | - Stefan Jockenhoevel
- Department of Biohybrid and Medical Textiles (BioTex), Center for Biohybrid Medical Systems (CBMS), Institute for Applied Medical Engineering, RWTH Aachen University, Forckenbeckstr. 55, 52074, Aachen, Germany.
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Computer‐Aided Analysis of the Corrosion Inhibition by Carbon‐Based Thin‐Film Coating on Vascular Bare Metal Stent Models. ADVANCED THEORY AND SIMULATIONS 2022. [DOI: 10.1002/adts.202100626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Mani G, Porter D, Grove K, Collins S, Ornberg A, Shulfer R. A comprehensive review of biological and materials properties of Tantalum and its alloys. J Biomed Mater Res A 2022; 110:1291-1306. [PMID: 35156305 DOI: 10.1002/jbm.a.37373] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/04/2022] [Indexed: 12/15/2022]
Abstract
Tantalum (Ta) and its alloys have been used for various cardiovascular, orthopedic, fracture fixation, dental, and spinal fusion implants. This review evaluates the biological and material properties of Ta and its alloys. Specifically, the biological properties including hemocompatibility and osseointegration, and material properties including radiopacity, MRI compatibility, corrosion resistance, surface characteristics, semiconductivity, and mechanical properties are covered. This review highlights how the material properties of Ta and its alloys contribute to its excellent biological properties for use in implants and medical devices.
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Affiliation(s)
- Gopinath Mani
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
| | - Deanna Porter
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
| | - Kent Grove
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
| | - Shell Collins
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
| | - Andreas Ornberg
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
| | - Robert Shulfer
- Division of Science and Technology, Abbott, St. Paul, Minnesota, USA
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Accelerated biodegradation of iron-based implants via tantalum-implanted surface nanostructures. Bioact Mater 2021; 9:239-250. [PMID: 34820568 PMCID: PMC8586574 DOI: 10.1016/j.bioactmat.2021.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/28/2021] [Accepted: 07/03/2021] [Indexed: 12/18/2022] Open
Abstract
In recent years, pure iron (Fe) has attracted significant attention as a promising biodegradable orthopedic implant material due to its excellent mechanical and biological properties. However, in physiological conditions, Fe has an extremely slow degradation rate with localized and irregular degradation, which is problematic for practical applications. In this study, we developed a novel combination of a nanostructured surface topography and galvanic reaction to achieve uniform and accelerated degradation of an Fe implant. The target-ion induced plasma sputtering (TIPS) technique was applied on the Fe implant to introduce biologically compatible and electrochemically noble tantalum (Ta) onto its surface and develop surface nano-galvanic couples. Electrochemical tests revealed that the uniformly distributed nano-galvanic corrosion cells of the TIPS-treated sample (nano Ta–Fe) led to relatively uniform and accelerated surface degradation compared to that of bare Fe. Furthermore, the mechanical properties of nano Ta–Fe remained almost constant during a long-term in vitro immersion test (~40 weeks). Biocompatibility was also assessed on surfaces of bare Fe and nano Ta–Fe using in vitro osteoblast responses through direct and indirect contact assays and an in vivo rabbit femur medullary cavity implantation model. The results revealed that nano Ta–Fe not only enhanced cell adhesion and spreading on its surface, but also exhibited no signs of cellular or tissue toxicity. These results demonstrate the immense potential of Ta-implanted surface nanostructures as an effective solution for the practical application of Fe-based orthopedic implants, ensuring long-term biosafety and clinical efficacy. The degradation rate of nanostructured Fe implants was accelerated by TIPS technique. Ta ions were accelerated strongly toward the Fe surface by TIPS process. Nano Ta–Fe showed long-term mechanical stability and accelerated degradation rate. Nanostructured Ta–Fe surface showed enhanced in vitro and in vivo cellular responses. Ta-implanted Fe is a promising material for biodegradable orthopedic implants.
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Wang X, Ning B, Pei X. Tantalum and its derivatives in orthopedic and dental implants: Osteogenesis and antibacterial properties. Colloids Surf B Biointerfaces 2021; 208:112055. [PMID: 34438295 DOI: 10.1016/j.colsurfb.2021.112055] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 07/11/2021] [Accepted: 08/16/2021] [Indexed: 02/08/2023]
Abstract
Implant-associated infections and aseptic loosening are some of the main reasons for implant failure. Therefore, there is an urgent need to improve the osseointegration and antibacterial capabilities of implant materials. In recent years, a large number of breakthroughs in the biological application of tantalum and its derivatives have been achieved. Owing to their corrosion resistance, biocompatibility, osseointegration ability, and antibacterial properties, they have shown considerable potential in orthopedic and dental implant applications. In this review, we provide the latest progress and achievements in the research on osseointegration and antibacterial properties of tantalum as well as its derivatives, and summarize the surface modification methods to enhance their osseointegration and antibacterial properties.
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Affiliation(s)
- Xu Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Boyu Ning
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041, China.
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Park S, Lee H, Kim HE, Jung HD, Jang TS. Bifunctional poly (l-lactic acid)/hydrophobic silica nanocomposite layer coated on magnesium stents for enhancing corrosion resistance and endothelial cell responses. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 127:112239. [PMID: 34225879 DOI: 10.1016/j.msec.2021.112239] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 05/25/2021] [Accepted: 06/02/2021] [Indexed: 11/28/2022]
Abstract
Biodegradable magnesium (Mg)-based vascular stents can overcome the limitations of conventional permanent metallic stents, such as late in-stent restenosis and thrombosis, but still have difficulty retarding degradation while providing adequate mechanical support to the blood vessel. We incorporated silica nanoparticles surface-functionalized with hexadecyltrimethoxysilane (mSiNP) into a poly (l-lactic acid) (PLLA) coating as a physical barrier to disturb the penetration of the corrosive medium as well as a bioactive source that releases silicon ions capable of stimulating endothelial cells. The corrosion resistance and biocompatibility of this bifunctional PLLA/mSiNP nanocomposite coating were investigated using different weight ratios of mSiNP. The nanocomposite coating containing more than 10 wt% of the mSiNP (PLLA/10mSiNP and PLLA/20mSiNP) significantly delayed the corrosion of the Mg substrate and exhibited favorable endothelial cell responses, compared to the pure PLLA coating. Specifically, the calculated corrosion rates of PLLA/10mSiNP and PLLA/20mSiNP decreased by half, indicating the durability of the coating after immersion in simulated body fluid for 12 days. Based on the in vitro cellular response, the incorporation of the mSiNPs into the PLLA coating significantly improved the endothelial cell responses to the Mg substrate, showing better initial cell surface coverage, migration, and proliferation rate than those of pure PLLA. These results indicate that the PLLA/mSiNP nanocomposite coatings have significant potential to improve the corrosion resistance and vascular compatibility of biodegradable Mg-based vascular stents.
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Affiliation(s)
- Suhyung Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea
| | - Hyun Lee
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, Bucheon 14662, Republic of Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea; Biomedical Implant Convergence Research lab, Advanced Institutes of Convergence Technology, Suwon, Republic of Korea
| | - Hyun-Do Jung
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon, Republic of Korea; Department of Biotechnology, The Catholic University of Korea, Bucheon 14662, Republic of Korea.
| | - Tae-Sik Jang
- Department of Materials Science and Engineering, Chosun University, Gwangju, Republic of Korea.
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Mohindra P, Desai TA. Micro- and nanoscale biophysical cues for cardiovascular disease therapy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2021; 34:102365. [PMID: 33571682 PMCID: PMC8217090 DOI: 10.1016/j.nano.2021.102365] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 01/15/2021] [Indexed: 11/19/2022]
Abstract
After cardiovascular injury, numerous pathological processes adversely impact the homeostatic function of cardiomyocyte, macrophage, fibroblast, endothelial cell, and vascular smooth muscle cell populations. Subsequent malfunctioning of these cells may further contribute to cardiovascular disease onset and progression. By modulating cellular responses after injury, it is possible to create local environments that promote wound healing and tissue repair mechanisms. The extracellular matrix continuously provides these mechanosensitive cell types with physical cues spanning the micro- and nanoscale to influence behaviors such as adhesion, morphology, and phenotype. It is therefore becoming increasingly compelling to harness these cell-substrate interactions to elicit more native cell behaviors that impede cardiovascular disease progression and enhance regenerative potential. This review discusses recent in vitro and preclinical work that have demonstrated the therapeutic implications of micro- and nanoscale biophysical cues on cell types adversely affected in cardiovascular diseases - cardiomyocytes, macrophages, fibroblasts, endothelial cells, and vascular smooth muscle cells.
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Affiliation(s)
- Priya Mohindra
- UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, United States
| | - Tejal A Desai
- UC Berkeley-UCSF Graduate Program in Bioengineering, San Francisco, CA, United States; Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA; Department of Bioengineering, University of California, Berkeley, Berkeley, CA.
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13
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Cherian AM, Nair SV, Maniyal V, Menon D. Surface engineering at the nanoscale: A way forward to improve coronary stent efficacy. APL Bioeng 2021; 5:021508. [PMID: 34104846 PMCID: PMC8172248 DOI: 10.1063/5.0037298] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
Coronary in-stent restenosis and late stent thrombosis are the two major inadequacies of vascular stents that limit its long-term efficacy. Although restenosis has been successfully inhibited through the use of the current clinical drug-eluting stent which releases antiproliferative drugs, problems of late-stent thrombosis remain a concern due to polymer hypersensitivity and delayed re-endothelialization. Thus, the field of coronary stenting demands devices having enhanced compatibility and effectiveness to endothelial cells. Nanotechnology allows for efficient modulation of surface roughness, chemistry, feature size, and drug/biologics loading, to attain the desired biological response. Hence, surface topographical modification at the nanoscale is a plausible strategy to improve stent performance by utilizing novel design schemes that incorporate nanofeatures via the use of nanostructures, particles, or fibers, with or without the use of drugs/biologics. The main intent of this review is to deliberate on the impact of nanotechnology approaches for stent design and development and the recent advancements in this field on vascular stent performance.
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Affiliation(s)
- Aleena Mary Cherian
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
| | - Shantikumar V. Nair
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
| | - Vijayakumar Maniyal
- Department of Cardiology, Amrita Institute of Medical Science
and Research Centre, Amrita Vishwa Vidyapeetham, Ponekkara P.O. Cochin
682041, Kerala, India
| | - Deepthy Menon
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita
Vishwa Vidyapeetham, Ponekkara P.O. Cochin 682041, Kerala,
India
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14
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Lee H, Jang TS, Han G, Kim HW, Jung HD. Freeform 3D printing of vascularized tissues: Challenges and strategies. J Tissue Eng 2021; 12:20417314211057236. [PMID: 34868539 PMCID: PMC8638074 DOI: 10.1177/20417314211057236] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/17/2021] [Indexed: 11/26/2022] Open
Abstract
In recent years, freeform three-dimensional (3D) printing has led to significant advances in the fabrication of artificial tissues with vascularized structures. This technique utilizes a supporting matrix that holds the extruded printing ink and ensures shape maintenance of the printed 3D constructs within the prescribed spatial precision. Since the printing nozzle can be translated omnidirectionally within the supporting matrix, freeform 3D printing is potentially applicable for the fabrication of complex 3D objects, incorporating curved, and irregular shaped vascular networks. To optimize freeform 3D printing quality and performance, the rheological properties of the printing ink and supporting matrix, and the material matching between them are of paramount importance. In this review, we shall compare conventional 3D printing and freeform 3D printing technologies for the fabrication of vascular constructs, and critically discuss their working principles and their advantages and disadvantages. We also provide the detailed material information of emerging printing inks and supporting matrices in recent freeform 3D printing studies. The accompanying challenges are further discussed, aiming to guide freeform 3D printing by the effective design and selection of the most appropriate materials/processes for the development of full-scale functional vascularized artificial tissues.
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Affiliation(s)
- Hyun Lee
- Department of Biomedical and Chemical
Engineering (BMCE), The Catholic University of Korea, Bucheon, Republic of
Korea
- Department of Biotechnology, The
Catholic University of Korea, Bucheon-si, Gyeonggi-do, Republic of Korea
| | - Tae-Sik Jang
- Department of Materials Science and
Engineering, Chosun University, Gwangju, Republic of Korea
| | - Ginam Han
- Department of Biomedical and Chemical
Engineering (BMCE), The Catholic University of Korea, Bucheon, Republic of
Korea
- Department of Biotechnology, The
Catholic University of Korea, Bucheon-si, Gyeonggi-do, Republic of Korea
| | - Hae-Won Kim
- Institute of Tissue Regeneration
Engineering (ITREN), Dankook University, Cheonan, Chungcheongnam-do, Republic of
Korea
- Department of Biomaterials Science,
College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do, Republic of
Korea
- Department of Nanobiomedical Science
& BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook
University, Cheonan, Chungcheongnam-do, Republic of Korea
- Cell & Matter Institute, Dankook
University, Cheonan, Chungcheongnam-do, Republic of Korea
- Department of Regenerative Dental
Medicine, College of Dentistry, Dankook University, Cheonan, Chungcheongnam-do,
Republic of Korea
| | - Hyun-Do Jung
- Department of Biomedical and Chemical
Engineering (BMCE), The Catholic University of Korea, Bucheon, Republic of
Korea
- Department of Biotechnology, The
Catholic University of Korea, Bucheon-si, Gyeonggi-do, Republic of Korea
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15
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Jang TS, Kim D, Han G, Yoon CB, Jung HD. Powder based additive manufacturing for biomedical application of titanium and its alloys: a review. Biomed Eng Lett 2020; 10:505-516. [PMID: 33194244 PMCID: PMC7655882 DOI: 10.1007/s13534-020-00177-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/09/2020] [Accepted: 10/15/2020] [Indexed: 10/23/2022] Open
Abstract
Powder based additive manufacturing (AM) technology of Ti and its alloys has received great attention in biomedical applications owing to its advantages such as customized fabrication, potential to be cost-, time-, and resource-saving. The performance of additive manufactured implants or scaffolds strongly depends on various kinds of AM technique and the quality of Ti and its alloy powders. This paper has specifically covered the process of commonly used powder-based AM technique and the powder production of Ti and its alloy. The selected techniques include laser-based powder bed fusion of metals (PBF-LB/M), electron beam powder bed fusion of metals (PBF-EB/M), and directed energy deposition utilized in the production of the biomaterials are discussed as well as the powder fed system of binder jetting. Moreover, titanium based powder production methods such as gas atomization, plasma atomization, and plasma rotating electrode process are also discussed.
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Affiliation(s)
- Tae-Sik Jang
- Department of Materials Science and Engineering, Chosun University, Gwangju, 61452 Republic of Korea
| | - DongEung Kim
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999 Republic of Korea
| | - Ginam Han
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon-si, 14662 Republic of Korea
| | - Chang-Bun Yoon
- Department of Advanced Materials Engineering, Korea Polytechnic University, Siheung-si, 15073 Republic of Korea
| | - Hyun-Do Jung
- Department of Biomedical-Chemical Engineering, Catholic University of Korea, Bucheon-si, 14662 Republic of Korea
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16
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Construction of tantalum/poly(ether imide) coatings on magnesium implants with both corrosion protection and osseointegration properties. Bioact Mater 2020; 6:1189-1200. [PMID: 33163700 PMCID: PMC7595939 DOI: 10.1016/j.bioactmat.2020.10.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 12/16/2022] Open
Abstract
Poly(ether imide) (PEI) has shown satisfactory corrosion protection capability with good adhesion strength as a coating for magnesium (Mg), a potential candidate of biodegradable orthopedic implant material. However, its innate hydrophobic property causes insufficient osteoblast affinity and a lack of osseointegration. Herein, we modify the physical and chemical properties of a PEI-coated Mg implant. A plasma immersion ion implantation technique is combined with direct current (DC) magnetron sputtering to introduce biologically compatible tantalum (Ta) onto the surface of the PEI coating. The PEI-coating layer is not damaged during this process owing to the extremely short processing time (30 s), retaining its high corrosion protection property and adhesion stability. The Ta-implanted layer (roughly 10-nm-thick) on the topmost PEI surface generates long-term surface hydrophilicity and favorable surface conditions for pre-osteoblasts to adhere, proliferate, and differentiate. Furthermore, in a rabbit femur study, the Ta/PEI-coated Mg implant demonstrates significantly enhanced bone tissue affinity and osseointegration capability. These results indicate that Ta/PEI-coated Mg is promising for achieving early mechanical fixation and long-term success in biodegradable orthopedic implant applications. PEI coating with subsequent Ta ion implantation was prepared on WE43 Mg alloy implant. The corrosion resistance of Mg alloy implant was improved by Ta embedded PEI coating. The wettability of PEI coating layer was enhanced by embedded Ta on its top-surface. Ta embedded PEI coating significantly improved in vitro and in vivo responses. Ta embedded PEI-coated Mg is highly suitable as a biodegradable orthopedic implant material.
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He S, Liu W, Qu K, Yin T, Qiu J, Li Y, Yuan K, Zhang H, Wang G. Effects of different positions of intravascular stent implantation in stenosed vessels on in-stent restenosis: An experimental and numerical simulation study. J Biomech 2020; 113:110089. [PMID: 33181394 DOI: 10.1016/j.jbiomech.2020.110089] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 09/08/2020] [Accepted: 10/16/2020] [Indexed: 11/29/2022]
Abstract
Percutaneous coronary intervention (PCI) has been widely used in the treatment of atherosclerosis, while in-stent restenosis (ISR) has not been completely resolved. Studies have shown that changes in intravascular mechanical environment are related to ISR. Hence, an in-depth understanding of the effects of stent intervention on vascular mechanics is important for clinically optimizing stent implantation and relieving ISR. Nine rabbits with stenotic carotid artery were collected by balloon injury. Intravascular stents were implanted into different longitudinal positions (proximal, middle and distal relative to the stenotic area) of the stenotic vessels for numerical simulations. Optical coherence tomography (OCT) scanning was performed to reconstruct the three-dimensional configuration of the stented carotid artery and blood flow velocity waveforms were collected by Doppler ultrasound. The numerical simulations were performed through direct solution of Naiver-Stokes equation in ANSYS. Results showed that the distributions of time-averaged wall shear stress (TAWSS), oscillating shear index (OSI) and relative residual time (RRT) in near-end segment were distinctively different from other regions of the stent which considered to promote restenosis for all three models. Spearman rank-correlation analysis showed a significant correlation between hemodynamic descriptors and the stent longitudinal positions (rTAWSS = -0.718, rOSI = 0.898, rRRT = 0.818, p < 0.01). Histology results of the near-end segment showed neointima thickening deepened with the longitudinal positions of stent which was consistent with the numerical simulations. The results suggest that stent implantation can promote restenosis at the near-end segment. As the stenting position moves to distal end, the impact on ISR is more significant.
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Affiliation(s)
- Shicheng He
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China; State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, PR China
| | - Wanling Liu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China
| | - Kai Qu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China
| | - Tieying Yin
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China
| | - Juhui Qiu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China.
| | - Yan Li
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China
| | - Kunshan Yuan
- National United Engineering Laboratory for Biomedical Material Modification, Dezhou, Shandong 251100, PR China
| | - Haijun Zhang
- National United Engineering Laboratory for Biomedical Material Modification, Dezhou, Shandong 251100, PR China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing 400030, PR China.
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18
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Rahmati M, Silva EA, Reseland JE, A Heyward C, Haugen HJ. Biological responses to physicochemical properties of biomaterial surface. Chem Soc Rev 2020; 49:5178-5224. [PMID: 32642749 DOI: 10.1039/d0cs00103a] [Citation(s) in RCA: 137] [Impact Index Per Article: 34.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Biomedical scientists use chemistry-driven processes found in nature as an inspiration to design biomaterials as promising diagnostic tools, therapeutic solutions, or tissue substitutes. While substantial consideration is devoted to the design and validation of biomaterials, the nature of their interactions with the surrounding biological microenvironment is commonly neglected. This gap of knowledge could be owing to our poor understanding of biochemical signaling pathways, lack of reliable techniques for designing biomaterials with optimal physicochemical properties, and/or poor stability of biomaterial properties after implantation. The success of host responses to biomaterials, known as biocompatibility, depends on chemical principles as the root of both cell signaling pathways in the body and how the biomaterial surface is designed. Most of the current review papers have discussed chemical engineering and biological principles of designing biomaterials as separate topics, which has resulted in neglecting the main role of chemistry in this field. In this review, we discuss biocompatibility in the context of chemistry, what it is and how to assess it, while describing contributions from both biochemical cues and biomaterials as well as the means of harmonizing them. We address both biochemical signal-transduction pathways and engineering principles of designing a biomaterial with an emphasis on its surface physicochemistry. As we aim to show the role of chemistry in the crosstalk between the surface physicochemical properties and body responses, we concisely highlight the main biochemical signal-transduction pathways involved in the biocompatibility complex. Finally, we discuss the progress and challenges associated with the current strategies used for improving the chemical and physical interactions between cells and biomaterial surface.
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Affiliation(s)
- Maryam Rahmati
- Department of Biomaterials, Institute of Clinical Dentistry, University of Oslo, 0317 Oslo, Norway. h.j.haugen.odont.uio.no
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