1
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Wang Y, Li Q, Zhao J, Chen J, Wu D, Zheng Y, Wu J, Liu J, Lu J, Zhang J, Wu Z. Mechanically induced pyroptosis enhances cardiosphere oxidative stress resistance and metabolism for myocardial infarction therapy. Nat Commun 2023; 14:6148. [PMID: 37783697 PMCID: PMC10545739 DOI: 10.1038/s41467-023-41700-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 09/14/2023] [Indexed: 10/04/2023] Open
Abstract
Current approaches in myocardial infarction treatment are limited by low cellular oxidative stress resistance, reducing the long-term survival of therapeutic cells. Here we develop a liquid-crystal substrate with unique surface properties and mechanical responsiveness to produce size-controllable cardiospheres that undergo pyroptosis to improve cellular bioactivities and resistance to oxidative stress. We perform RNA sequencing and study cell metabolism to reveal increased metabolic levels and improved mitochondrial function in the preconditioned cardiospheres. We test therapeutic outcomes in a rat model of myocardial infarction to show that cardiospheres improve long-term cardiac function, promote angiogenesis and reduce cardiac remodeling during the 3-month observation. Overall, this study presents a promising and effective system for preparing a large quantity of functional cardiospheres, showcasing potential for clinical application.
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Affiliation(s)
- Yingwei Wang
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Qi Li
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jupeng Zhao
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jiamin Chen
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Dongxue Wu
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Youling Zheng
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jiaxin Wu
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jie Liu
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jianlong Lu
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China
| | - Jianhua Zhang
- Department of Cardiology, First Affiliated Hospital of Jinan University, Guangzhou, China.
| | - Zheng Wu
- Key Laboratory for Regenerative Medicine, Ministry of Education, Department of Developmental and Regenerative Biology, Jinan University, Guangzhou, China.
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2
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Ma M, Zou F, Abudureheman B, Han F, Xu G, Xie Y, Qiao K, Peng J, Guan Y, Meng H, Zheng Y. Magnetic Microcarriers with Accurate Localization and Proliferation of Mesenchymal Stem Cell for Cartilage Defects Repairing. ACS NANO 2023; 17:6373-6386. [PMID: 36961738 DOI: 10.1021/acsnano.2c10995] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Magnetic biomaterials are widely used in the field of tissue engineering because of their functions such as drug delivery and targeted therapy. In this study, a magnetically responsive composite microcarrier was prepared through in situ polymerization of dopamine with Fe3O4 (MS) to form a complex. The magnetic composite microcarriers are paramagnetic and have certain magnetic responsiveness, suitable pore size porosity for cell growth, and good blood compatibility and biocompatibility. The bone marrow mesenchyml stem cells (BMSCs) were cultured on magnetic composite microcarriers, and a static magnetic field (SMF) was applied. The results showed that BMSCs adhered to the microcarriers proliferated under the action of horizontal and vertical forces. Magnetic composite microcarriers loaded with BMSCs were implanted into the SD rat model of cartilage defect, and a magnet was added to the operative side. After 12 weeks, cartilage regeneration was observed. The results of gross observation and histological immunostaining 1 month, 2 months, and 3 mounths after operation showed that the magnetic composite microcarriers of loaded cells promoted the early maturation of cartilage and collagen secretion, and the effect of cartilage repair was significantly better than that of the control group. Gait analysis showed that implanting magnetic composite microcarriers loaded with stem cells can reduce postoperative pain and promote limb recovery in SD rats. In conclusion, this study suggests that magnetic composite microcarriers are promising tissue-engineered scaffolds for cartilage regeneration and repair.
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Affiliation(s)
- Mengjiao Ma
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Faxing Zou
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Bahatibieke Abudureheman
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Feng Han
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma &War Injuries, PLA Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Guoli Xu
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - YaJie Xie
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kun Qiao
- Beijing Gerecov Technology Company Ltd., Beijing 100142, China
| | - Jiang Peng
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma &War Injuries, PLA Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Yueping Guan
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Haoye Meng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Beijing Key Lab of Regenerative Medicine in Orthopaedics, Key Laboratory of Musculoskeletal Trauma &War Injuries, PLA Institute of Orthopedics, Chinese PLA General Hospital, Beijing 100853, China
| | - Yudong Zheng
- School of Material Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
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3
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Characterization of Alginate–Gelatin–Cholesteryl Ester Liquid Crystals Bioinks for Extrusion Bioprinting of Tissue Engineering Scaffolds. Polymers (Basel) 2022; 14:polym14051021. [PMID: 35267843 PMCID: PMC8915124 DOI: 10.3390/polym14051021] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/22/2022] [Accepted: 02/26/2022] [Indexed: 11/26/2022] Open
Abstract
Tissue engineering (TE) is an innovative approach to tackling many diseases and body parts that need to be replaced by developing artificial tissues and organs. Bioinks play an important role in the success of various TE applications. A bioink refers to a combination of a living cell, biomaterials, and bioactive molecules deposited in a layer-by-layer form to fabricate tissue-like structures. The research on bioink attempts to offer a 3D complex architecture and control cellular behavior that improve cell physical properties and viability. This research proposed a new multi-material bioink based on alginate (A), gelatin (G), and cholesteryl ester liquid crystals (CELC) biomaterials, namely (AGLC) bioinks. The development of AGLC was initiated with the optimization of different concentrations of A and G gels to obtain a printable formulation of AG gels. Subsequently, the influences of different concentrations of CELC with AG gels were investigated by using a microextrusion-based 3D bioprinting system to obtain a printed structure with high shape fidelity and minimum width. The AGLC bioinks were formulated using AG gel with 10% weight/volume (w/v) of A and 50% w/v G (AG10:50) and 1%, 5%, 10%, 20%, and 40% of CELC, respectively. The AGLC bioinks yield a high printability and resolution blend. The printed filament has a minimum width of 1.3 mm at a 1 mL/min extrusion rate when the A equals 10% w/v, G equals 50% w/v, and CELC equals 40% v/v (AGLC40). Polymerization of the AGLC bioinks with calcium (Ca2+) ions shows well-defined and more stable structures in the post-printing process. The physicochemical and viability properties of the AGLC bioinks were examined by FTIR, DSC, contact angle, FESEM, MTT assay, and cell interaction evaluation methods. The FTIR spectra of the AGLC bioinks exhibit a combination of characteristics vibrations of AG10:50 and CELC. The DSC analysis indicates the high thermal stability of the bioinks. Wettability analysis shows a reduction in the water absorption ability of the AGLC bioinks. FESEM analysis indicates that the surface morphologies of the bioinks exhibit varying microstructures. In vitro cytotoxicity by MTT assay shows the ability of the bioinks to support the biological activity of HeLa cells. The AGLC bioinks show average cell viability of 82.36% compared to the control (90%). Furthermore, cultured cells on the surface of AGLC bioinks showed that bioinks provide favorable interfaces for cell attachment.
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4
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Patel H. Blood biocompatibility enhancement of biomaterials by heparin immobilization: a review. Blood Coagul Fibrinolysis 2021; 32:237-247. [PMID: 33443929 DOI: 10.1097/mbc.0000000000001011] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Blood contacting materials are concerned with biocompatibility including thrombus formation, decrease blood coagulation time, hematology, activation of complement system, platelet aggression. Interestingly, recent research suggests that biocompatibility is increasing by incorporating various materials including heparin using different methods. Basic of heparin including uses and complications was mentioned, in which burst release of heparin is major issue. To minimize the problem of biocompatibility and unpredictable heparin release, present review article potentially reviews the reported work and investigates the various immobilization methods of heparin onto biomaterials, such as polymers, metals, and alloys. Detailed explanation of different immobilization methods through different intermediates, activation, incubation method, plasma treatment, irradiations and other methods are also discussed, in which immobilization through intermediates is the most exploitable method. In addition to biocompatibility, other required properties of biomaterials like mechanical and corrosion resistance properties that increase by attachment of heparin are reviewed and discussed in this article.
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Affiliation(s)
- Himanshu Patel
- Department of Applied Science and Humanities, Pacific School of Engineering, Surat, Gujarat
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5
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Imani SM, Maclachlan R, Chan Y, Shakeri A, Soleymani L, Didar TF. Hierarchical Structures, with Submillimeter Patterns, Micrometer Wrinkles, and Nanoscale Decorations, Suppress Biofouling and Enable Rapid Droplet Digitization. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2004886. [PMID: 33230941 DOI: 10.1002/smll.202004886] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/27/2020] [Indexed: 06/11/2023]
Abstract
Liquid repellant surfaces have been shown to play a vital role for eliminating thrombosis on medical devices, minimizing blood contamination on common surfaces as well as preventing non-specific adhesion. Herein, an all solution-based, easily scalable method for producing liquid repellant flexible films, fabricated through nanoparticle deposition and heat-induced thin film wrinkling that suppress blood adhesion, and clot formation is reported. Furthermore, superhydrophobic and hydrophilic surfaces are combined onto the same substrate using a facile streamlined process. The patterned superhydrophobic/hydrophilic surfaces show selective digitization of droplets from various solutions with a single solution dipping step, which provides a route for rapid compartmentalization of solutions into virtual wells needed for high-throughput assays. This rapid solution digitization approach is demonstrated for detection of Interleukin 6. The developed liquid repellant surfaces are expected to find a wide range of applications in high-throughput assays and blood contacting medical devices.
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Affiliation(s)
- Sara M Imani
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Roderick Maclachlan
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Yuting Chan
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Amid Shakeri
- Department of Mechanical Engineering, McMaster University, Hamilton, ON, L8S 4L7, Canada
| | - Leyla Soleymani
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
- Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L7, Canada
- Department of Mechanical Engineering, McMaster University, Hamilton, ON, L8S 4L7, Canada
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6
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Badv M, Bayat F, Weitz JI, Didar TF. Single and multi-functional coating strategies for enhancing the biocompatibility and tissue integration of blood-contacting medical implants. Biomaterials 2020; 258:120291. [PMID: 32798745 DOI: 10.1016/j.biomaterials.2020.120291] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/27/2020] [Accepted: 08/01/2020] [Indexed: 12/27/2022]
Abstract
Device-associated clot formation and poor tissue integration are ongoing problems with permanent and temporary implantable medical devices. These complications lead to increased rates of mortality and morbidity and impose a burden on healthcare systems. In this review, we outline the current approaches for developing single and multi-functional surface coating techniques that aim to circumvent the limitations associated with existing blood-contacting medical devices. We focus on surface coatings that possess dual hemocompatibility and biofunctionality features and discuss their advantages and shortcomings to providing a biocompatible and biodynamic interface between the medical implant and blood. Lastly, we outline the newly developed surface modification techniques that use lubricant-infused coatings and discuss their unique potential and limitations in mitigating medical device-associated complications.
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Affiliation(s)
- Maryam Badv
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Fereshteh Bayat
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
| | - Jeffrey I Weitz
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Thrombosis & Atherosclerosis Research Institute (TaARI), Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada; Department of Mechanical Engineering, McMaster University, Hamilton, Ontario, Canada; Institute for Infectious Disease Research (IIDR), McMaster University, Hamilton, Ontario, Canada.
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7
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Badv M, Weitz JI, Didar TF. Lubricant-Infused PET Grafts with Built-In Biofunctional Nanoprobes Attenuate Thrombin Generation and Promote Targeted Binding of Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1905562. [PMID: 31773877 DOI: 10.1002/smll.201905562] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/02/2019] [Indexed: 05/21/2023]
Abstract
New surface coatings that enhance hemocompatibility and biofunctionality of synthetic vascular grafts such as expanded poly(tetrafluoroethylene) (ePTFE) and poly(ethylene terephthalate) (PET) are urgently needed. Lubricant-infused surfaces prevent nontargeted adhesion and enhance the biocompatibility of blood-contacting surfaces. However, limited success has been made in incorporating biofunctionality onto these surfaces and generating biofunctional lubricant-infused coatings that both prevent nonspecific adhesion and enhance targeted binding of biomolecules remains a challenge. Here, a new generation of fluorosilanized lubricant-infused PET surfaces with built-in biofunctional nanoprobes is reported. These surfaces are synthesized by starting with a self-assembled monolayer of fluorosilane that is partially etched using plasma modification technique, thereby creating a hydroxyl-terminated fluorosilanized PET surface. Simultaneously, silanized nanoprobes are produced by amino-silanizing anti-CD34 antibody in solution and directly coupling the anti-CD34-aminosilane nanoprobes onto the hydroxyl terminated, fluorosilanized PET surface. The PET surfaces are then lubricated, creating fluorosilanized biofunctional lubricant-infused PET substrates. Compared with unmodified PET surfaces, the designed biofunctional lubricant-infused PET surfaces significantly attenuate thrombin generation and blood clot formation and promote targeted binding of endothelial cells from human whole blood.
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Affiliation(s)
- Maryam Badv
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
| | - Jeffrey I Weitz
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
- Thrombosis & Atherosclerosis Research Institute, 237 Barton Street East, L8L 2X2, Hamilton, Ontario, Canada
- Department of Medicine, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
- Department of Biochemistry and Biomedical Sciences, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
| | - Tohid F Didar
- School of Biomedical Engineering, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
- Michael G. DeGroote Institute for Infectious Disease Research (IIDR), McMaster University, 1280 Main Street West, L8S 4L8, Hamilton, Ontario, Canada
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8
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Badv M, Alonso-Cantu C, Shakeri A, Hosseinidoust Z, Weitz JI, Didar TF. Biofunctional Lubricant-Infused Vascular Grafts Functionalized with Silanized Bio-Inks Suppress Thrombin Generation and Promote Endothelialization. ACS Biomater Sci Eng 2019; 5:6485-6496. [DOI: 10.1021/acsbiomaterials.9b01062] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | | | | | - Jeffrey I. Weitz
- Thrombosis & Atherosclerosis Research Institute (TaARI), 237 Barton Street East, Hamilton, Ontario L8L 2X2, Canada
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9
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Badv M, Imani SM, Weitz JI, Didar TF. Lubricant-Infused Surfaces with Built-In Functional Biomolecules Exhibit Simultaneous Repellency and Tunable Cell Adhesion. ACS NANO 2018; 12:10890-10902. [PMID: 30352507 DOI: 10.1021/acsnano.8b03938] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Lubricant-infused omniphobic surfaces have exhibited outstanding effectiveness in inhibiting nonspecific adhesion and attenuating superimposed clot formation compared with other coated surfaces. However, such surfaces blindly thwart adhesion, which is troublesome for applications that rely on targeted adhesion. Here we introduce a new class of lubricant-infused surfaces that offer tunable bioactivity together with omniphobic properties by integrating biofunctional domains into the lubricant-infused layer. These novel surfaces promote targeted binding of desired species while simultaneously preventing nonspecific adhesion. To develop these surfaces, mixed self-assembled monolayers (SAMs) of aminosilanes and fluorosilanes were generated. Aminosilanes were utilized as coupling molecules for immobilizing capture ligands, and nonspecific adhesion of cells and proteins was prevented by infiltrating the fluorosilane molecules with a thin layer of a biocompatible fluorocarbon-based lubricant, thus generating biofunctional lubricant-infused surfaces. This method yields surfaces that (a) exhibit highly tunable binding of anti-CD34 and anti-CD144 antibodies and adhesion of endothelial cells, while repelling nonspecific adhesion of undesirable proteins and cells not only in buffer but also in human plasma or human whole blood, and (b) attenuate blood clot formation. Therefore, this straightforward and simple method creates biofunctional, nonsticky surfaces that can be used to optimize the performance of devices such as biomedical implants, extracorporeal circuits, and biosensors.
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Affiliation(s)
- Maryam Badv
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
| | - Sara M Imani
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
| | - Jeffrey I Weitz
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Thrombosis & Atherosclerosis Research Institute (TaARI) , Hamilton , Ontario L8S 4L7 , Canada
| | - Tohid F Didar
- School of Biomedical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Department of Mechanical Engineering , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
- Institute for Infectious Disease Research (IIDR) , McMaster University , Hamilton , Ontario L8S 4L7 , Canada
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10
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Song J, Liao Z, Shi H, Xiang D, Xu L, Liu Y, Mu X, Liu W. Blood Compatibility of ZrO₂ Particle Reinforced PEEK Coatings on Ti6Al4V Substrates. Polymers (Basel) 2017; 9:polym9110589. [PMID: 30965896 PMCID: PMC6418944 DOI: 10.3390/polym9110589] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 10/30/2017] [Accepted: 11/06/2017] [Indexed: 12/24/2022] Open
Abstract
Titanium (Ti) and its alloys are widely used in biomedical devices. As biomaterials, the blood compatibility of Ti and its alloys is important and needs to be further improved to provide better functionality. In this work, we studied the suitability of zirconia (ZrO2) particle reinforced poly-ether-ether-ketone (PEEK) coatings on Ti6Al4V substrates for blood-contacting implants. The wettability, surface roughness and elastic modulus of the coatings were examined. Blood compatibility tests were conducted by erythrocytes observation, hemolysis assay and clotting time of recalcified human plasma, to find out correlations between the microstructure of the ZrO2-filled PEEK composite coatings and their blood compatibilities. The results suggested that adding ZrO2 nanoparticles increased the surface roughness and improved the wettability and Derjaguin-Muller-Toporov (DMT) elastic modulus of PEEK coating. The PEEK composite matrix coated Ti6Al4V specimens did not cause any aggregation of erythrocytes, showing morphological normal shapes. The hemolysis rate (HR) values of the tested specimens were much less than 5% according to ISO 10993-4 standard. The values of plasma recalcification time (PRT) of the tested specimens varied with the increasing amount of ZrO2 nanoparticles. Based on the results obtained, 10 wt % ZrO2 particle reinforced PEEK coating has demonstrated an optimum blood compatibility, and can be considered as a candidate to improve the performance of existing PEEK based coatings on titanium substrates.
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Affiliation(s)
- Jian Song
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
| | - Zhenhua Liao
- Biomechanics and Biotechnology Lab, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China.
| | - Hongyu Shi
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
| | - Dingding Xiang
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
| | - Lin Xu
- Department of Osteology, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China.
| | - Yuhong Liu
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
| | - Xiaohong Mu
- Department of Osteology, Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine, Beijing 100700, China.
| | - Weiqiang Liu
- State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China.
- Biomechanics and Biotechnology Lab, Research Institute of Tsinghua University in Shenzhen, Shenzhen 518057, China.
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11
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Zhao W, Han Z, Ma L, Sun S, Zhao C. Highly hemo-compatible, mechanically strong, and conductive dual cross-linked polymer hydrogels. J Mater Chem B 2016; 4:8016-8024. [DOI: 10.1039/c6tb02259f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Novel hydrogels with highly hemo-compatible, mechanically strong and conductive properties are developed as promising candidates for a wide range of biomedical applications.
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Affiliation(s)
- Weifeng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Zhiyuan Han
- Department of Materials Science and Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Lang Ma
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Shudong Sun
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu
- China
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12
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Wang Y, Ye C, Su H, Wang J, Wang Y, Wang H, Zhao A, Huang N. Layer-by-layer self-assembled laminin/fucoidan films: towards better hemocompatibility and endothelialization. RSC Adv 2016. [DOI: 10.1039/c6ra02070d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The laminin/fucoidan multilayer film is prepared on glass via layer-by-layer self-assembly technique and monitored the assembled process by QCM-D. This film can inhibit platelets adhesion and improve ECs and EPCs adhesion.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Changrong Ye
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Hong Su
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Juan Wang
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Yanan Wang
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Haohao Wang
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Ansha Zhao
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
| | - Nan Huang
- Key Laboratory of Advanced Materials Technology of Ministry of Education
- Department of Materials Science and Engineering
- Southwest Jiaotong University
- Chengdu 610031
- China
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