1
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Wen KC, Li ZA, Liu JH, Zhang C, Zhang F, Li FQ. Recent developments in ureteral stent: Substrate material, coating polymer and technology, therapeutic function. Colloids Surf B Biointerfaces 2024; 238:113916. [PMID: 38636438 DOI: 10.1016/j.colsurfb.2024.113916] [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: 01/27/2024] [Revised: 03/21/2024] [Accepted: 04/11/2024] [Indexed: 04/20/2024]
Abstract
The ureteral stent is an effective treatment for clinical ureteral stricture following urological surgery, and the functional coating of the stent could effectively inhibit bacterial colonization and other complications. The present review provides an analysis and description of the materials used in ureteral stents and their coatings. Emphasis is placed on the technological advancements of functional coatings, taking into consideration the characteristics of these materials and the properties of their active substances. Furthermore, recent advances in enhancing the therapeutic efficacy of functional coatings are also reviewed. It is anticipated that this article will serve as a valuable reference providing insights for future research development on new drug-loaded ureteral stents.
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Affiliation(s)
- Kai-Chao Wen
- School of Medicine, Shanghai University, Shanghai 200444, China; Department of Urology/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Zheng-An Li
- School of Medicine, Shanghai University, Shanghai 200444, China; Department of Urology/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Ji-Heng Liu
- Department of Urology/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China
| | - Chuan Zhang
- School of Medicine, Shanghai University, Shanghai 200444, China.
| | - Feng Zhang
- Department of Urology/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China.
| | - Feng-Qian Li
- School of Medicine, Shanghai University, Shanghai 200444, China; Department of Urology/Pharmaceutics, Shanghai Eighth People's Hospital, Shanghai 200235, China.
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2
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Pan C, Xu R, Chen J, Zhang Q, Deng L, Hong Q. A CO-releasing coating based on carboxymethyl chitosan-functionalized graphene oxide for improving the anticorrosion and biocompatibility of magnesium alloy stent materials. Int J Biol Macromol 2024; 271:132487. [PMID: 38768910 DOI: 10.1016/j.ijbiomac.2024.132487] [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: 03/04/2024] [Revised: 05/12/2024] [Accepted: 05/16/2024] [Indexed: 05/22/2024]
Abstract
Due to its biofunctions similar to NO, the CO gas signaling molecule has gradually shown great potential in cardiovascular biomaterials for regulating the in vivo performances after the implantation and has received increasing attention. To construct a bioactive surface with CO-releasing properties on the surface of magnesium-based alloy to augment the anticorrosion and biocompatibility, graphene oxide (GO) was firstly modified using carboxymethyl chitosan (CS), and then CO-releasing molecules (CORM401) were introduced to synthesize a novel biocompatible nanomaterial (GOCS-CO) that can release CO in the physiological environments. The GOCS-CO was further immobilized on the magnesium alloy surface modified by polydopamine coating with Zn2+ (PDA/Zn) to create a bioactive surface capable of releasing CO in the physiological environment. The outcomes showed that the CO-releasing coating can not only significantly enhance the anticorrosion and abate the corrosion degradation rate of the magnesium alloy in a simulated physiological environment, but also endow it with good hydrophilicity and a certain ability to adsorb albumin selectively. Owing to the significant enhancement of anticorrosion and hydrophilicity, coupled with the bioactivity of GOCS, the modified sample not only showed excellent ability to prevent platelet adhesion and activation and reduce hemolysis rate but also can promote endothelial cell (EC) adhesion, proliferation as well as the expression of nitric oxide (NO) and vascular endothelial growth factor (VEGF). In the case of CO release, the hemocompatibility and EC growth behaviors were further significantly improved, suggesting that CO molecules released from the surface can significantly improve the hemocompatibility and EC growth. Consequently, the present study provides a novel surface modification method that can simultaneously augment the anticorrosion and biocompatibility of magnesium-based alloys, which will strongly promote the research and application of CO-releasing bioactive coatings for surface functionalization of cardiovascular biomaterials and devices.
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Affiliation(s)
- Changjiang Pan
- School of Medical and Health Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China.
| | - Ruiting Xu
- The Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an 223003, China
| | - Jie Chen
- Faculty of Mechanical and Material Engineering, Jiangsu Provincial Engineering Research Center for Biomaterials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Qiuyang Zhang
- Faculty of Mechanical and Material Engineering, Jiangsu Provincial Engineering Research Center for Biomaterials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an 223003, China
| | - Linhong Deng
- School of Medical and Health Engineering, Institute of Biomedical Engineering and Health Sciences, Changzhou University, Changzhou 213164, China
| | - Qingxiang Hong
- Faculty of Mechanical and Material Engineering, Jiangsu Provincial Engineering Research Center for Biomaterials and Advanced Medical Devices, Huaiyin Institute of Technology, Huai'an 223003, China
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Liu D, Yang K, Chen S. Development and Future Trends of Protective Strategies for Magnesium Alloy Vascular Stents. MATERIALS (BASEL, SWITZERLAND) 2023; 17:68. [PMID: 38203922 PMCID: PMC10779993 DOI: 10.3390/ma17010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 12/09/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024]
Abstract
Magnesium alloy stents have been extensively studied in the field of biodegradable metal stents due to their exceptional biocompatibility, biodegradability and excellent biomechanical properties. Nevertheless, the specific in vivo service environment causes magnesium alloy stents to degrade rapidly and fail to provide sufficient support for a certain time. Compared to previous reviews, this paper focuses on presenting an overview of the development history, the key issues, mechanistic analysis, traditional protection strategies and new directions and protection strategies for magnesium alloy stents. Alloying, optimizing stent design and preparing coatings have improved the corrosion resistance of magnesium alloy stents. Based on the corrosion mechanism of magnesium alloy stents, as well as their deformation during use and environmental characteristics, we present some novel strategies aimed at reducing the degradation rate of magnesium alloys and enhancing the comprehensive performance of magnesium alloy stents. These strategies include adapting coatings for the deformation of the stents, preparing rapid endothelialization coatings to enhance the service environment of the stents, and constructing coatings with self-healing functions. It is hoped that this review can help readers understand the development of magnesium alloy cardiovascular stents and solve the problems related to magnesium alloy stents in clinical applications at the early implantation stage.
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Affiliation(s)
- Dexiao Liu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Ke Yang
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shanshan Chen
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
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Wu C, He X, Zhu Y, Weng W, Cheng K, Wang D, Chen Z. Electrochemical deposition of Ppy/Dex/ECM coatings and their regulation on cellular responses through electrical controlled drug release. Colloids Surf B Biointerfaces 2023; 222:113016. [PMID: 36427406 DOI: 10.1016/j.colsurfb.2022.113016] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 11/06/2022] [Accepted: 11/10/2022] [Indexed: 11/13/2022]
Abstract
Bone tissue engineering requires a material that can simultaneously promote osteogenic differentiation and anti-inflammatory effects at specific times in response to a series of problems after bone implantation. In this study, the porous network-like titanium matrix was constructed and polypyrrole/dexamethasone (Ppy/Dex) composite coatings with three-dimensional nano-network structure were prepared by electrochemical deposition. The biocompatibility of the composite coatings was further improved by the composite of the extracellular matrix (ECM). The Ppy/Dex/ECM composite coatings released Dex by changing the redox state of Ppy under the electrical stimulation of negative pulses, achieving a drug release controlled by electric field. In terms of osteogenic differentiation, the Ppy/Dex/ECM composite coatings exhibited the best osteogenic activity under electrical controlled release, indicating the synergistic effect of Dex and ECM on osteogenic differentiation. In terms of anti-inflammatory properties, ECM exhibited simultaneous inhibition of both pro- and anti-inflammatory process, while Dex demonstrated significant promotion of anti-inflammatory processes. In this work, the effect of electrical controlled drug release on osteogenic differentiation and inflammation in the ECM cell microenvironment was achieved by preparing Ppy/Dex/ECM composite coatings, which is of great significance for bone tissue engineering and regenerative medicine.
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Affiliation(s)
- Chengwei Wu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Xuzhao He
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Yifei Zhu
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
| | - Wenjian Weng
- School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China; Center of Rehabilitation Biomedical Materials, Zhejiang University, Hangzhou 310027, China
| | - Kui Cheng
- Department of Rehabilitation Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310003, China; School of Materials Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China; Center of Rehabilitation Biomedical Materials, Zhejiang University, Hangzhou 310027, China.
| | - Daming Wang
- Department of Rehabilitation Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310003, China; Center of Rehabilitation Biomedical Materials, Zhejiang University, Hangzhou 310027, China.
| | - Zuobing Chen
- Department of Rehabilitation Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang Province 310003, China; Center of Rehabilitation Biomedical Materials, Zhejiang University, Hangzhou 310027, China.
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5
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Fattah-alhosseini A, Chaharmahali R, Rajabi A, Babaei K, Kaseem M. Performance of PEO/Polymer Coatings on the Biodegradability, Antibacterial Effect and Biocompatibility of Mg-Based Materials. J Funct Biomater 2022; 13:jfb13040267. [PMID: 36547527 PMCID: PMC9781375 DOI: 10.3390/jfb13040267] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 11/19/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022] Open
Abstract
Magnesium (Mg) alloys have recently attracted attention in biomedicine as biodegradable materials with non-toxic degradable products. Such compounds have become a frontier in the study of biodegradable materials because of their remarkable biomechanical compatibility and superior biocompatibility. The use of Mg-based implants reduces the negative consequences of permanent biological implants by eliminating the necessity for biomaterial surgery following the healing process. However, the quick deterioration, formation of considerable gas of hydrogen volumes and a rise in the body environment pH are obstacles in the application of Mg as an implant material. Hence, compelling advances for erosion resistance and biocompatibility of magnesium and its alloys are noteworthy. Surface modification may be a practical approach because it improves the erosion resistance compared with extensive preparation of a treated surface for progressed bone recovery and cell attachment. Coating produced by plasma electrolytic oxidation (PEO) seems a compelling method in order to enhance magnesium and the properties of its alloys. PEO-formed coatings cannot provide long-term protection in the physiological environment due to their porous nature. Thus, a polymer coating is applied on the porous PEO-formed coating, which is steadily applied on the surface. Polymer coatings improve the biocompatibility properties of Mg and its alloys and increase corrosion resistance. In this article, the most recent advancements in PEO/polymer composite coatings are reviewed, and the biocompatibility of such coatings is examined.
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Affiliation(s)
- Arash Fattah-alhosseini
- Department of Materials Engineering, Bu-Ali Sina University, Hamedan 65178-38695, Iran
- Correspondence: (A.F.-a.); (M.K.)
| | - Razieh Chaharmahali
- Department of Materials Engineering, Bu-Ali Sina University, Hamedan 65178-38695, Iran
| | - Armin Rajabi
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia
| | - Kazem Babaei
- Department of Materials Engineering, Bu-Ali Sina University, Hamedan 65178-38695, Iran
| | - Mosab Kaseem
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
- Correspondence: (A.F.-a.); (M.K.)
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Helal Hossain MD, Hossain N, Asaduzzaman Chowdhury M, Arefin Kowser M, Masud Rana M. Surface Synthesization of Magnesium Alloys for Improving Corrosion Resistance and Implant Applications. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104465] [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] Open
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7
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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: 10] [Impact Index Per Article: 3.3] [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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8
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Li H, Song W, Cui X, Li Y, Hou B, Zhang X, Wang Y, Cheng L, Zhang P, Li J. AgInS 2 and graphene co-sensitized TiO 2 photoanodes for photocathodic protection of Q235 carbon steel under visible light. NANOTECHNOLOGY 2020; 31:305704. [PMID: 32240986 DOI: 10.1088/1361-6528/ab85eb] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
AgInS2 nanoparticle and graphene nanosheet co-sensitized anatase TiO2 nanotube array films were fabricated by a combination of hydrothermal reaction and electrochemical anodization on titanium sheets. The results showed that the co-sensitization of AgInS2 nanoparticles and graphene nanosheets extended the photoresponse of TiO2 nanotubes into the visible-light region, and improved the photogenerated charge separation and transfer capability. The photocurrent density of the AgInS2/graphene/TiO2 composites (about 4.0 mA cm-2) was 20 times that of bare TiO2 (only 0.2 mA cm-2) under visible-light illumination. The potential negative shift value of AgInS2/graphene/TiO2 composites was up to 0.68 V versus saturated calomel electrode. The AgInS2/graphene/TiO2 composites can provide Q235 carbon steel with highly efficient photocathodic protection under visible-light illumination.
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Affiliation(s)
- Hong Li
- State Key Laboratory of Bio-fibers and Eco-textiles, College of Mechanical and Electrical Engineering, Qingdao University, No. 308 Ningxia Road, Qingdao 266071, People's Republic of China
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9
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Zhu Y, Zheng L, Liu W, Qin L, Ngai T. Poly(l-lactic acid) (PLLA)/MgSO4·7H2O Composite Coating on Magnesium Substrates for Corrosion Protection and Cytocompatibility Promotion. ACS APPLIED BIO MATERIALS 2020; 3:1364-1373. [DOI: 10.1021/acsabm.9b00983] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yuwei Zhu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Lizhen Zheng
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Wei Liu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - Ling Qin
- Musculoskeletal Research Laboratory, Department of Orthopaedics and Traumatology, and Innovative Orthopaedic Biomaterial and Drug Translational Research Laboratory of Li Ka Shing Institute of Health, Faculty of Medicine, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, Shatin N. T., Hong Kong
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10
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Tezcan F, Mahmood A, Kardaş G. The investigation of Cu2O electrochemical deposition time effect on ZnO for water splitting. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Zhang X, Dai J, Dong Q, Ba Z, Wu Y. Corrosion behavior and mechanical degradation of as‐extruded Mg–Gd–Zn–Zr alloys for orthopedic application. J Biomed Mater Res B Appl Biomater 2019; 108:698-708. [DOI: 10.1002/jbm.b.34424] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 05/10/2019] [Accepted: 05/17/2019] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaobo Zhang
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Jianwei Dai
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Qiangsheng Dong
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Zhixin Ba
- School of Materials Science and EngineeringNanjing Institute of Technology Nanjing China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology Nanjing China
| | - Yujuan Wu
- National Engineering Research Center of Light Alloys Net FormingShanghai Jiao Tong University Shanghai China
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Abstract
Absorbable metals have been introduced as materials to fabricate temporary medical implants. Iron, magnesium and zinc have been considered as major base elements of such metals. The metallurgical characterization and in-vitro corrosion assessment of these metals have been covered by the new ASTM standards F3160 and F3268. However, the in-vivo corrosion characterization and assessment of absorbable metal implants are not yet well established. The corrosion of metals in the in-vivo environment leads to metal ion release and corrosion product formation that may cause excessive toxicity. The aim of this work is to introduce the techniques to assess absorbable metal implants and their in-vivo corrosion behavior. This contains the existing approaches, e.g., implant retrieval and histological analysis, ultrasonography and radiography, and the new techniques for real-time in-vivo corrosion monitoring.
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Vitale F, Shen W, Driscoll N, Burrell JC, Richardson AG, Adewole O, Murphy B, Ananthakrishnan A, Oh H, Wang T, Lucas TH, Cullen DK, Allen MG, Litt B. Biomimetic extracellular matrix coatings improve the chronic biocompatibility of microfabricated subdural microelectrode arrays. PLoS One 2018; 13:e0206137. [PMID: 30383805 PMCID: PMC6211660 DOI: 10.1371/journal.pone.0206137] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 10/08/2018] [Indexed: 01/15/2023] Open
Abstract
Intracranial electrodes are a vital component of implantable neurodevices, both for acute diagnostics and chronic treatment with open and closed-loop neuromodulation. Their performance is hampered by acute implantation trauma and chronic inflammation in response to implanted materials and mechanical mismatch between stiff synthetic electrodes and pulsating, natural soft host neural tissue. Flexible electronics based on thin polymer films patterned with microscale conductive features can help alleviate the mechanically induced trauma; however, this strategy alone does not mitigate inflammation at the device-tissue interface. In this study, we propose a biomimetic approach that integrates microscale extracellular matrix (ECM) coatings on microfabricated flexible subdural microelectrodes. Taking advantage of a high-throughput process employing micro-transfer molding and excimer laser micromachining, we fabricate multi-channel subdural microelectrodes primarily composed of ECM protein material and demonstrate that the electrochemical and mechanical properties match those of standard, uncoated controls. In vivo ECoG recordings in rodent brain confirm that the ECM microelectrode coatings and the protein interface do not alter signal fidelity. Astrogliotic, foreign body reaction to ECM coated devices is reduced, compared to uncoated controls, at 7 and 30 days, after subdural implantation in rat somatosensory cortex. We propose microfabricated, flexible, biomimetic electrodes as a new strategy to reduce inflammation at the device-tissue interface and improve the long-term stability of implantable subdural electrodes.
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Affiliation(s)
- Flavia Vitale
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Neurology, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Physical Medicine & Rehabilitation, University of Pennsylvania, Philadelphia PA, United States of America
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz VA Medical Center, Philadelphia PA, United States of America
| | - Wendy Shen
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, United States of America
| | - Nicolette Driscoll
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
| | - Justin C. Burrell
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz VA Medical Center, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Neurosurgery, University of Pennsylvania, Philadelphia PA, United States of America
| | - Andrew G. Richardson
- Department of Neurosurgery, University of Pennsylvania, Philadelphia PA, United States of America
| | - Oladayo Adewole
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz VA Medical Center, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
| | - Brendan Murphy
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
| | - Akshay Ananthakrishnan
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, United States of America
| | - Hanju Oh
- Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia PA, United States of America
| | - Theodore Wang
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
| | - Timothy H. Lucas
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Neurosurgery, University of Pennsylvania, Philadelphia PA, United States of America
| | - D. Kacy Cullen
- Center for Neurotrauma, Neurodegeneration & Restoration, Corporal Michael J. Crescenz VA Medical Center, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Neurosurgery, University of Pennsylvania, Philadelphia PA, United States of America
| | - Mark G. Allen
- Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia PA, United States of America
| | - Brian Litt
- Center for Neuroengineering and Therapeutics, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Neurology, University of Pennsylvania, Philadelphia PA, United States of America
- Department of Bioengineering, University of Pennsylvania, Philadelphia PA, United States of America
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14
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Li H, Peng F, Wang D, Qiao Y, Xu D, Liu X. Layered double hydroxide/poly-dopamine composite coating with surface heparinization on Mg alloys: improved anticorrosion, endothelialization and hemocompatibility. Biomater Sci 2018; 6:1846-1858. [PMID: 29789824 DOI: 10.1039/c8bm00298c] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Magnesium (Mg) and its alloys are promising cardiovascular stent materials due to their favourable physical properties and complete degradation in vivo. However, rapid degradation and poor cytocompatibility hinder their clinical applications. To enhance the corrosion resistance and endothelialization of the AZ31 alloy, a layered double hydroxide (LDH)/poly-dopamine (PDA) composite coating (LDH/PDA) was successfully fabricated. Polarization curves and the electrochemical impedance spectroscopy Nyquist spectrum test proved that the corrosion resistance of the LDH/PDA sample was significantly improved in vitro. The LDH/PDA sample greatly improved the adherence process and the proliferation rate of human umbilical vein endothelial cells (HUVECs). After culturing for 10 days, the number of living HUVECs on the LDH/PDA sample was comparable to that on the Ti sample whereas the cells barely survived on the AZ31 or LDH coating. Furthermore, heparin was immobilized on LDH/PDA via a covalent bond (LDH/PDA/HEP). The corrosion resistance and long-term proliferation of HUVECs after the introduction of heparin were mildly decreased compared with the L/P sample, but were still greatly improved compared with AZ31, the LDH coating and the PDA coating. Furthermore, the LDH/PDA/HEP sample greatly improved the HUVEC migration rate compared with the LDH/PDA sample, and inhibited platelet adhesion which was intense on the LDH/PDA sample. Both LDH/PDA and LDH/PDA/HEP samples had a low hemolysis rate (2.52% and 0.65%, respectively) in vitro and eliminated the adverse biocompatible effects of the direct PDA coating on the AZ31 substrate in vivo. Our results suggest that the LDH/PDA composite coating with further heparinization is a promising method to modify the surface of Mg alloys by significantly improving corrosion resistance, endothelialization and hemocompatibility.
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Affiliation(s)
- Hua Li
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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15
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Yang G, Yang H, Shi L, Wang T, Zhou W, Zhou T, Han W, Zhang Z, Lu W, Hu J. Enhancing Corrosion Resistance, Osteoinduction, and Antibacterial Properties by Zn/Sr Additional Surface Modification of Magnesium Alloy. ACS Biomater Sci Eng 2018; 4:4289-4298. [PMID: 33418825 DOI: 10.1021/acsbiomaterials.8b00781] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Guangzheng Yang
- Department of Prosthodontics, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Huawei Yang
- Department of Stomatology, Shanghai Tenth People’s Hospital, Tongji University, Shanghai 200072, China
| | - Lei Shi
- Department of Oral and Maxillofacial Surgery, Gansu Provincial Hospital, Lanzhou 730000, China
| | - Taolei Wang
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Wuchao Zhou
- Department of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Nanchang University, Nanchang 330006, China
| | - Tian Zhou
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Wei Han
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Zhiyuan Zhang
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Wei Lu
- School of Materials Science and Engineering, Tongji University, Shanghai 201804, China
| | - Jingzhou Hu
- Department of Oral & Maxillofacial-Head & Neck Oncology, Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
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Li LY, Cui LY, Zeng RC, Li SQ, Chen XB, Zheng Y, Kannan MB. Advances in functionalized polymer coatings on biodegradable magnesium alloys - A review. Acta Biomater 2018; 79:23-36. [PMID: 30149212 DOI: 10.1016/j.actbio.2018.08.030] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Revised: 08/21/2018] [Accepted: 08/23/2018] [Indexed: 01/20/2023]
Abstract
Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and excellent biomechanical compatibility. However, their high degradation rate in the physiological environment should be well tackled prior to clinical applications. This review summarizes the latest progress in the development of polymeric coatings on biodegradable Mg alloys over the last decade, regarding preparation strategies for polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), polydopamine (PDA), chitosan (CS), collagen (Col) and their composite, and their performance in terms of corrosion resistance and biocompatibility. Feasible perspectives and developing directions of next generation of polymeric coatings with respect to biomedical Mg alloys are briefly discussed. STATEMENT OF SIGNIFICANCE Magnesium (Mg) and its alloys have become a research frontier in biodegradable materials owing to their superior biocompatibility and suitable biomechanical compatibility. However, the principal drawback of Mg-based implants is their poor corrosion resistance in physiological environments. Hence, it is vital to mitigate the degradation/corrosion behavior of Mg alloys for safe biomedical deployments. This review summarizes the latest progress in development of polymeric coatings on biomedical Mg alloys regarding preparation strategy, corrosion resistance and biocompatibility, including polylactic acid (PLA), poly (latic-co-glycolic) acid (PLGA), polycaprolactone (PCL), chitosan (CS), polydopamine (PDA), collagen (Col) and their composite. In addition, functionalized polymer coatings with Mg alloys exhibits a promising prospect owing to their ability of degradation along with biocompatibility, self-healing, drug-delivery and osteoinduction.
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Affiliation(s)
- Ling-Yu Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Lan-Yue Cui
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Rong-Chang Zeng
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China.
| | - Shuo-Qi Li
- College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, China
| | - Xiao-Bo Chen
- School of Engineering, RMIT University, Carlton, VIC 3053, Australia
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - M Bobby Kannan
- Biomaterials and Engineering Materials (BEM) Laboratory, College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
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17
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Shen W, Das S, Vitale F, Richardson A, Ananthakrishnan A, Struzyna LA, Brown DP, Song N, Ramkumar M, Lucas T, Cullen DK, Litt B, Allen MG. Microfabricated intracortical extracellular matrix-microelectrodes for improving neural interfaces. MICROSYSTEMS & NANOENGINEERING 2018; 4:30. [PMID: 31057918 PMCID: PMC6220172 DOI: 10.1038/s41378-018-0030-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/30/2018] [Accepted: 08/05/2018] [Indexed: 05/30/2023]
Abstract
Intracortical neural microelectrodes, which can directly interface with local neural microcircuits with high spatial and temporal resolution, are critical for neuroscience research, emerging clinical applications, and brain computer interfaces (BCI). However, clinical applications of these devices remain limited mostly by their inability to mitigate inflammatory reactions and support dense neuronal survival at their interfaces. Herein we report the development of microelectrodes primarily composed of extracellular matrix (ECM) proteins, which act as a bio-compatible and an electrochemical interface between the microelectrodes and physiological solution. These ECM-microelectrodes are batch fabricated using a novel combination of micro-transfer-molding and excimer laser micromachining to exhibit final dimensions comparable to those of commercial silicon-based microelectrodes. These are further integrated with a removable insertion stent which aids in intracortical implantation. Results from electrochemical models and in vivo recordings from the rat's cortex indicate that ECM encapsulations have no significant effect on the electrochemical impedance characteristics of ECM-microelectrodes at neurologically relevant frequencies. ECM-microelectrodes are found to support a dense layer of neuronal somata and neurites on the electrode surface with high neuronal viability and exhibited markedly diminished neuroinflammation and glial scarring in early chronic experiments in rats.
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Affiliation(s)
- Wen Shen
- Krishna P. Singh Center for Nanotechnology, University of Pennsylvania, Philadelphia, PA 19104 USA
- Present Address: Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, Arlington, TX 76019 USA
| | - Suradip Das
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Flavia Vitale
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Andrew Richardson
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Akshay Ananthakrishnan
- Department of Mechanical Engineering and Applied Mechanics, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Laura A. Struzyna
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Daniel P. Brown
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Naixin Song
- Department of Electrical and Systems Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Murari Ramkumar
- Department of Materials Science and Engineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Timothy Lucas
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - D. Kacy Cullen
- Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Brian Litt
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Mark G. Allen
- Krishna P. Singh Center for Nanotechnology, University of Pennsylvania, Philadelphia, PA 19104 USA
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18
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Hermawan H. Updates on the research and development of absorbable metals for biomedical applications. Prog Biomater 2018; 7:93-110. [PMID: 29790132 PMCID: PMC6068061 DOI: 10.1007/s40204-018-0091-4] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Accepted: 05/17/2018] [Indexed: 12/12/2022] Open
Abstract
Absorbable metals, metals that corrode in physiological environment, constitute a new class of biomaterials intended for temporary medical implant applications. The introduction of these metals has shifted the established paradigm of metal implants from preventing corrosion to its direct application. Interest toward absorbable metals has been growing in the past decade. This is proved by the rapid increase in scientific publication, progressive development of standards, and launching the first commercial products. Iron, magnesium, zinc, and their alloys are the current three absorbable metals families. Magnesium-based metals are the most progressing family with a large data set obtained from both basic and translational research. Iron-based metals are still facing a major challenge of low in vivo corrosion rate despite the significant efforts that have been put to overcome its weakness. Zinc-based metals are the new alternative absorbable metals with moderate corrosion rates that fall between those of iron and magnesium. This manuscript provides a brief review on the latest progress in the research and development of absorbable metals, the most important findings, the remaining challenges, and the perspective on the future direction.
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Affiliation(s)
- Hendra Hermawan
- Department of Mining, Metallurgical and Materials Engineering and CHU de Québec Research Center, Laval University, Quebec City, G1V 0A6, Canada.
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19
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Chen Y, Ye SH, Sato H, Zhu Y, Shanov V, Tiasha T, D'Amore A, Luketich S, Wan G, Wagner WR. Hybrid scaffolds of Mg alloy mesh reinforced polymer/extracellular matrix composite for critical-sized calvarial defect reconstruction. J Tissue Eng Regen Med 2018; 12:1374-1388. [DOI: 10.1002/term.2668] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 02/07/2018] [Accepted: 04/11/2018] [Indexed: 12/20/2022]
Affiliation(s)
- Yingqi Chen
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, College of Materials Science and Engineering; Southwest Jiaotong University; Chengdu China
| | - Sang-Ho Ye
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
| | - Hideyoshi Sato
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
| | - Yang Zhu
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
| | - Vesselin Shanov
- College of Engineering and Applied Science; University of Cincinnati; Cincinnati OH USA
| | - Tarannum Tiasha
- College of Engineering and Applied Science; University of Cincinnati; Cincinnati OH USA
| | - Antonio D'Amore
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
| | - Samuel Luketich
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
| | - Guojiang Wan
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, College of Materials Science and Engineering; Southwest Jiaotong University; Chengdu China
| | - William R. Wagner
- McGowan Institute for Regenerative Medicine; University of Pittsburgh; Pittsburgh PA USA
- Department of Surgery; University of Pittsburgh; Pittsburgh PA USA
- Department of Chemical Engineering; University of Pittsburgh; Pittsburgh PA USA
- Department of Bioengineering; University of Pittsburgh; Pittsburgh PA USA
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20
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Ang HY, Huang YY, Lim ST, Wong P, Joner M, Foin N. Mechanical behavior of polymer-based vs. metallic-based bioresorbable stents. J Thorac Dis 2017; 9:S923-S934. [PMID: 28894598 PMCID: PMC5583085 DOI: 10.21037/jtd.2017.06.30] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 05/18/2017] [Indexed: 11/06/2022]
Abstract
Bioresorbable scaffolds (BRS) were developed to overcome the drawbacks of current metallic drug-eluting stents (DES), such as late in-stent restenosis and caging of the vessel permanently. The concept of the BRS is to provide transient support to the vessel during healing before being degraded and resorbed by the body, freeing the vessel and restoring vasomotion. The mechanical properties of the BRS are influenced by the choice of the material and processing methods. Due to insufficient radial strength of the bioresorbable material, BRS often required large strut profile as compared to conventional metallic DES. Having thick struts will in turn affect the deliverability of the device and may cause flow disturbance, thereby increasing the incidence of acute thrombotic events. Currently, the bioresorbable poly-l-lactic acid (PLLA) polymer and magnesium (Mg) alloys are being investigated as materials in BRS technologies. The bioresorption process, mechanical properties, in vitro observations and clinical outcomes of PLLA-based and Mg-based BRS will be examined in this review.
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Affiliation(s)
- Hui Ying Ang
- National Heart Centre Singapore, Singapore, Singapore
| | - Ying Ying Huang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Soo Teik Lim
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Philip Wong
- National Heart Centre Singapore, Singapore, Singapore
- Duke-NUS Medical School, Singapore, Singapore
| | - Michael Joner
- Deutsches Herzzentrum München, Technische Universität München, Munich, Germany
| | - Nicolas Foin
- National Heart Centre Singapore, Singapore, Singapore
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