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Zhou X, Wang Y, Ji J, Zhang P. Materials Strategies to Overcome the Foreign Body Response. Adv Healthc Mater 2024; 13:e2304478. [PMID: 38666550 DOI: 10.1002/adhm.202304478] [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: 12/15/2023] [Revised: 04/20/2024] [Indexed: 05/03/2024]
Abstract
The foreign body response (FBR) is an immune-mediated reaction that can occur with most biomaterials and biomedical devices. The FBR initiates a deterioration in the performance of implantable devices, representing a longstanding challenge that consistently hampers their optimal utilization. Over the last decade, significant strides are achieved based on either hydrogel design or surface modifications to mitigate the FBR. This review delves into recent material strategies aimed at mitigating the FBR. Further, the authors look forward to future novel anti-FBR materials from the perspective of clinical translation needs. Such prospective materials hold the potential to attenuate local immune responses, thereby significantly enhancing the overall performance of implantable devices.
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Affiliation(s)
- Xianchi Zhou
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Youxiang Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Jian Ji
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- State Key Laboratory of Transvascular Implantation Devices, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 311202, P. R. China
| | - Peng Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization of Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- State Key Laboratory of Transvascular Implantation Devices, The Second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 311202, P. R. China
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2
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Liao J, Li X, Fan Y. Prevention strategies of postoperative adhesion in soft tissues by applying biomaterials: Based on the mechanisms of occurrence and development of adhesions. Bioact Mater 2023; 26:387-412. [PMID: 36969107 PMCID: PMC10030827 DOI: 10.1016/j.bioactmat.2023.02.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/26/2023] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
Postoperative adhesion (POA) widely occurs in soft tissues and usually leads to chronic pain, dysfunction of adjacent organs and some acute complications, seriously reducing patients' quality of life and even being life-threatening. Except for adhesiolysis, there are few effective methods to release existing adhesion. However, it requires a second operation and inpatient care and usually triggers recurrent adhesion in a great incidence. Hence, preventing POA formation has been regarded as the most effective clinical strategy. Biomaterials have attracted great attention in preventing POA because they can act as both barriers and drug carriers. Nevertheless, even though much reported research has been demonstrated their efficacy on POA inhibition to a certain extent, thoroughly preventing POA formation is still challenging. Meanwhile, most biomaterials for POA prevention were designed based on limited experiences, not a solid theoretical basis, showing blindness. Hence, we aimed to provide guidance for designing anti-adhesion materials applied in different soft tissues based on the mechanisms of POA occurrence and development. We first classified the postoperative adhesions into four categories according to the different components of diverse adhesion tissues, and named them as "membranous adhesion", "vascular adhesion", "adhesive adhesion" and "scarred adhesion", respectively. Then, the process of the occurrence and development of POA were analyzed, and the main influencing factors in different stages were clarified. Further, we proposed seven strategies for POA prevention by using biomaterials according to these influencing factors. Meanwhile, the relevant practices were summarized according to the corresponding strategies and the future perspectives were analyzed.
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3
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Hansda A, Mukherjee S, Dixit K, Dhara S, Mukherjee G. Immunological Perspectives Involved in Tissue Engineering. Regen Med 2023. [DOI: 10.1007/978-981-19-6008-6_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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4
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Borges R, Pelosine AM, de Souza ACS, Machado J, Justo GZ, Gamarra LF, Marchi J. Bioactive Glasses as Carriers of Cancer-Targeted Drugs: Challenges and Opportunities in Bone Cancer Treatment. MATERIALS (BASEL, SWITZERLAND) 2022; 15:ma15249082. [PMID: 36556893 PMCID: PMC9781635 DOI: 10.3390/ma15249082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 05/20/2023]
Abstract
The treatment of bone cancer involves tumor resection followed by bone reconstruction of the defect caused by the tumor using biomaterials. Additionally, post-surgery protocols cover chemotherapy, radiotherapy, or drug administration, which are employed as adjuvant treatments to prevent tumor recurrence. In this work, we reviewed new strategies for bone cancer treatment based on bioactive glasses as carriers of cancer-targeted and other drugs that are intended for bone regeneration in conjunction with adjuvant treatments. Drugs used in combination with bioactive glasses can be classified into cancer-target, osteoclast-target, and new therapies (such as gene delivery and bioinorganic). Microparticulated, nanoparticulated, or mesoporous bioactive glasses have been used as drug-delivery systems. Additionally, surface modification through functionalization or the production of composites based on polymers and hydrogels has been employed to improve drug-release kinetics. Overall, although different drugs and drug delivery systems have been developed, there is still room for new studies involving kinase inhibitors or antibody-conjugated drugs, as these drugs have been poorly explored in combination with bioactive glasses.
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Affiliation(s)
- Roger Borges
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil
| | - Agatha Maria Pelosine
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil
| | | | - Joel Machado
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema 05508-070, Brazil
| | - Giselle Zenker Justo
- Departamento de Bioquímica, Universidade Federal de São Paulo, São Paulo 05508-070, Brazil
| | | | - Juliana Marchi
- Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Santo André 09210-580, Brazil
- Correspondence: ; Tel.: +55-11-4996-8365
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5
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Manufacturing and Separation Characteristics of Hemodialysis Membranes to Improve Toxin Removal Rate. ADVANCES IN POLYMER TECHNOLOGY 2022. [DOI: 10.1155/2022/2565010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
With the recently growing interest in health care, hemodialysis is being performed not only to treat patients with renal disease but also to improve blood circulation. At present, filters used for hemodialysis are manufactured only in certain countries, and all other countries must rely on imports. In this study, polyethersulfone (PES), which has excellent blood compatibility, was used as the main material to develop hemodialysis membranes for hemodialysis filters, and these hemodialysis membranes were prepared by adding a hydrophilic polymer, polyvinylpyrrolidone (PVP), and varying the type of nonsolvent during the manufacturing process to improve the toxin removal rate and biocompatibility. The addition of PVP was confirmed through attenuated total reflection Fourier transform infrared (ATR-FTIR), and the structure of the membranes depending on the nonsolvent was analyzed through scanning electron microscopy (SEM) and atomic force microscopy (AFM) images. The contact angle results indicated that the hydrophilicity of the membrane surface was improved as the concentration of PVP increased. The results of the toxin filtration efficiency experiment using urea, creatinine, and bovine serum albumin (BSA) confirmed removal rates of 58.8% and 56.87%, respectively, and a protein loss of less than 8%. Also, cell viability was over 90% at the PVP concentration of 2% or higher. A preliminary study was conducted on the improvement of toxin filtration efficiency and the development potential of these hemodialysis membranes with excellent biocompatibility.
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6
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Chen PJ, Chen HY, Tsai WB. Fabrication of Low-Fouling Surfaces on Alkyne-Functionalized Poly-(p-xylylenes) Using Click Chemistry. Polymers (Basel) 2022; 14:polym14020225. [PMID: 35054631 PMCID: PMC8780154 DOI: 10.3390/polym14020225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/22/2021] [Accepted: 12/31/2021] [Indexed: 02/04/2023] Open
Abstract
A facial, versatile, and universal method that breaks the substrate limits is desirable for antifouling treatment. Thin films of functional poly-p-xylylenes (PPX) that are deposited using chemical vapor deposition (CVD) provide a powerful platform for surface immobilization of molecules. In this study, we prepared an alkyne-functionalized PPX coating on which poly (sulfobetaine methacrylate-co-Az) could be conjugated via click chemistry. We found that the conjugated polymers were very stable and inhibited cell adhesion and protein adsorption effectively. The same conjugation strategy could also be applied to conjugate azide-containing poly (ethylene glycol) and poly (NIPAAm). The results indicate that our method provides a simple and robust tool for fabricating antifouling surfaces on a wide range of substrates using CVD technology of functionalized poly (p-xylylenes) for biosensor, diagnostics, immunoassay, and other biomaterial applications.
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Torres J, Dhas N, Longhi M, García MC. Overcoming Biological Barriers With Block Copolymers-Based Self-Assembled Nanocarriers. Recent Advances in Delivery of Anticancer Therapeutics. Front Pharmacol 2020; 11:593197. [PMID: 33329001 PMCID: PMC7734332 DOI: 10.3389/fphar.2020.593197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 10/15/2020] [Indexed: 11/21/2022] Open
Abstract
Cancer is one of the most common life-threatening illness and it is the world's second largest cause of death. Chemotherapeutic anticancer drugs have many disadvantages, which led to the need to develop novel strategies to overcome these shortcomings. Moreover, tumors are heterogenous in nature and there are various biological barriers that assist in treatment reisistance. In this sense, nanotechnology has provided new strategies for delivery of anticancer therapeutics. Recently, delivery platforms for overcoming biological barriers raised by tumor cells and tumor-bearing hosts have been reported. Among them, amphiphilic block copolymers (ABC)-based self-assembled nanocarriers have attracted researchers worldwide owing to their unique properties. In this work, we addressed different biological barriers for effective cancer treatment along with several strategies to overcome them by using ABC-based self-assembled nanostructures, with special emphasis in those that have the ability to act as responsive nanocarriers to internal or external environmental clues to trigger release of the payload. These nanocarriers have shown promising properties to revolutionize cancer treatment and diagnosis, but there are still challenges for their successful translation to clinical applications.
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Affiliation(s)
- Jazmin Torres
- Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - Namdev Dhas
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad, India
| | - Marcela Longhi
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
| | - Mónica C. García
- Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina
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8
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Huo D, Jiang X, Hu Y. Recent Advances in Nanostrategies Capable of Overcoming Biological Barriers for Tumor Management. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904337. [PMID: 31663198 DOI: 10.1002/adma.201904337] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/27/2019] [Indexed: 05/22/2023]
Abstract
Engineered nanomaterials have been extensively employed as therapeutics for tumor management. Meanwhile, the complex tumor niche along with multiple barriers at the cellular level collectively hinders the action of nanomedicines. Here, the advanced strategies that hold promise for overcoming the numerous biological barriers facing nanomedicines are summarized. Starting from tumor entry, methods that promote tissue penetration of nanomedicine and address the hypoxia issue are also highlighted. Then, emphasis is given to the significance of overcoming both physical barriers, such as membrane-associated efflux pumps, and biological features, such as resistance to apoptosis. The pros and cons for an individual approach are presented. In addition, the associated technical problems are discussed, along with the importance of balancing the therapeutic merits and the additional cost of sophisticated nanomedicine designs.
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Affiliation(s)
- Da Huo
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Xiqun Jiang
- Department of Polymer Science & Engineering, College of Chemistry & Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210093, China
| | - Yong Hu
- College of Engineering and Applied Sciences, Nanjing University, Nanjing, Jiangsu, 210093, China
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Liu Y, Zhang Y, Ren B, Sun Y, He Y, Cheng F, Xu J, Zheng J. Molecular Dynamics Simulation of the Effect of Carbon Space Lengths on the Antifouling Properties of Hydroxyalkyl Acrylamides. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:3576-3584. [PMID: 30721070 DOI: 10.1021/acs.langmuir.8b04229] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Surface hydration has been proposed as the key antifouling mechanism of antifouling materials. However, molecular-level details of the structure, dynamics, and interactions of interfacial water around antifouling polymers still remain elusive. In this work, using all-atom molecular dynamics (MD) simulations, we studied four different acrylamides (AMs) for their interfacial water behaviors and their interactions with a protein, with special attention to the effect of carbon spacer lengths (CSLs) on the hydration properties of AMs. Collective MD simulation data revealed that although all four AMs displayed strong hydration, N-hydroxymethyl acrylamide (HMAA) and N-(2-hydroxyethyl)acrylamide (HEAA) with shorter CSLs displayed a longer residence time, slower self-diffusion, and lower coordination number of interfacial water molecules than N-(3-hydroxypropyl)acrylamide (HPAA) and N-(5-hydroxypentyl)-acrylamide (HPenAA) with longer CSLs. The shorter CSLs allow water molecules to form bridging hydrogen bonds with different hydrophilic groups in the same AM chain, thus enhancing the hydration capacity of AMs. Consequently, different from HPenAA, which had a weak but detectable interaction with the protein, HMAA, HEAA, and HPAA had almost zero interactions with the protein. This computational work provides a better fundamental understanding of the surface hydration and protein interaction of different AMs with subtle structural changes from structural, dynamic, and energy aspects at the atomic level, which hopefully will guide the design of new and effective nonfouling materials.
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Affiliation(s)
- Yonglan Liu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices College of Life Science and Chemistry , Hunan University of Technology , Zhuzhou 412007 , China
- Department of Chemical & Biomolecular Engineering , The University of Akron , Akron , Ohio 44325 , United States
| | - Yanxian Zhang
- Department of Chemical & Biomolecular Engineering , The University of Akron , Akron , Ohio 44325 , United States
| | - Baiping Ren
- Department of Chemical & Biomolecular Engineering , The University of Akron , Akron , Ohio 44325 , United States
| | - Yan Sun
- Department of Biochemical Engineering and Key Laboratory of Systems Bioengineering of the Ministry of Education, School of Chemical Engineering and Technology , Tianjin University , Tianjin 300354 , China
| | - Yi He
- College of Chemical and Biological Engineering , Zhejiang University , Hangzhou , Zhejiang 310027 , China
| | - Fang Cheng
- State Key Laboratory of Fine Chemicals , Dalian University of Technology , Dalian 116024 , China
| | - Jianxiong Xu
- Hunan Key Laboratory of Biomedical Nanomaterials and Devices College of Life Science and Chemistry , Hunan University of Technology , Zhuzhou 412007 , China
| | - Jie Zheng
- Department of Chemical & Biomolecular Engineering , The University of Akron , Akron , Ohio 44325 , United States
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10
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Peng S, Men Y, Xie R, Tian Y, Yang W. Biodegradable phosphorylcholine-based zwitterionic polymer nanogels with smart charge-conversion ability for efficient inhibition of tumor cells. J Colloid Interface Sci 2019; 539:19-29. [DOI: 10.1016/j.jcis.2018.12.035] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/09/2018] [Accepted: 12/10/2018] [Indexed: 02/07/2023]
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11
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Khalifehzadeh R, Ratner BD. Trifluoromethyl-functionalized poly(lactic acid): a fluoropolyester designed for blood contact applications. Biomater Sci 2019; 7:3764-3778. [DOI: 10.1039/c9bm00353c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fluorinated polymers are strong candidates for development of new cardiovascular medical devices, due to their lower thrombogenicity as compared to other polymers used for cardiovascular implants.
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Affiliation(s)
| | - Buddy D. Ratner
- Department of Chemical Engineering
- University of Washington
- Seattle
- USA
- Department of Bioengineering
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12
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Surface fluorination of polylactide as a path to improve platelet associated hemocompatibility. Acta Biomater 2018; 78:23-35. [PMID: 30036719 DOI: 10.1016/j.actbio.2018.07.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/18/2018] [Accepted: 07/19/2018] [Indexed: 12/11/2022]
Abstract
Surface-induced thrombosis is still a significant clinical concern for many types of blood-contacting medical devices. In particular, protein adsorption and platelet adhesion are important events due to their ability to trigger the coagulation cascade and initiate thrombosis. Poly(lactic acid) (PLA) has been the predominant polymer used for making bioresorbable stents. Despite long-term advantages, these stents are associated with higher rates of early thrombosis compared with permanent metallic stents. To address this issue, we modified the surface of PLA with a perfluoro compound facilitated by surface activation using radio frequency (RF) plasma. Fluoropolymers have been extensively used in blood contacting materials, such as blood vessel replacements due to their reduced thrombogenicity and reduced platelet reactivity. The compositions of plasma-treated surfaces were determined by electron spectroscopy for chemical analysis (ESCA). Also, contact angle measurements, cell cytotoxicity and the degradation profile of the treated polymers are presented. Finally, relevant blood compatibility parameters, including plasma protein adsorption, platelet adhesion and morphology, were evaluated. We hypothesized that tight binding of adsorbed albumin by fluoropolymers enhances its potential for blood-contacting applications. STATEMENT OF SIGNIFICANCE Although bioresorbable stents made from poly(lactic acid) (PLA) may have long-term clinical advantages, they have shown higher rates of early thrombosis as compared with permanent metallic stents. To improve the thromboresistance of PLA, we developed a novel method for surface fluorination of this polymer with a perfluoro compound. Fluoropolymers (e.g., expanded polytetrafluoroethylene) have long been used in blood-contacting applications due to their satisfactory clinical performance. This is the first report of PLA surface fluorination which might be applied to the fabrication of a new generation of fluorinated PLA stents with improved platelet interaction, tunable degradability and drug release capabilities. Also, we describe a general strategy for improving the platelet interactions with biomaterials based on albumin retention.
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13
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A zwitterionic block-copolymer, based on glutamic acid and lysine, reduces the biofouling of UF and RO membranes. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.12.042] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Perumal G, Ayyagari A, Chakrabarti A, Kannan D, Pati S, Grewal HS, Mukherjee S, Singh S, Arora HS. Friction Stir Processing of Stainless Steel for Ascertaining Its Superlative Performance in Bioimplant Applications. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36615-36631. [PMID: 28972737 DOI: 10.1021/acsami.7b11064] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Substrate-cell interactions for a bioimplant are driven by substrate's surface characteristics. In addition, the performance of an implant and resistance to degradation are primarily governed by its surface properties. A bioimplant typically degrades by wear and corrosion in the physiological environment, resulting in metallosis. Surface engineering strategies for limiting degradation of implants and enhancing their performance may reduce or eliminate the need for implant removal surgeries and the associated cost. In the current study, we tailored the surface properties of stainless steel using submerged friction stir processing (FSP), a severe plastic deformation technique. FSP resulted in significant microstructural refinement from 22 μm grain size for the as-received alloy to 0.8 μm grain size for the processed sample with increase in hardness by nearly 1.5 times. The wear and corrosion behavior of the processed alloy was evaluated in simulated body fluid. The processed sample demonstrated remarkable improvement in both wear and corrosion resistance, which is explained by surface strengthening and formation of a highly stable passive layer. The methylthiazol tetrazolium assay demonstrated that the processed sample is better in supporting cell attachment, proliferation with minimal toxicity, and hemolysis. The athrombogenic characteristic of the as-received and processed samples was evaluated by fibrinogen adsorption and platelet adhesion via the enzyme-linked immunosorbent assay and lactate dehydrogenase assay, respectively. The processed sample showed less platelet and fibrinogen adhesion compared with the as-received alloy, signifying its high thromboresistance. The current study suggests friction stir processing to be a versatile toolbox for enhancing the performance and reliability of currently used bioimplant materials.
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Affiliation(s)
| | - A Ayyagari
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | | | | | | | | | - S Mukherjee
- Department of Materials Science and Engineering, University of North Texas , Denton, Texas 76203, United States
| | - S Singh
- Special Center for Molecular Medicine, Jawaharlal Nehru University , New Delhi 110067, India
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15
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Dong Y, An R, Zhao S, Cao W, Huang L, Zhuang W, Lu L, Lu X. Molecular Interactions of Protein with TiO 2 by the AFM-Measured Adhesion Force. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:11626-11634. [PMID: 28772074 DOI: 10.1021/acs.langmuir.7b02024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Understanding the interactions between porous materials and biosystems is of great important in biomedical and environmental sciences. Upon atomic force microscopy (AFM) adhesion measurement, a new experimental approach was presented here to determine the molecular interaction force between proteins and mesoporous TiO2 of various surface roughnesses. The interaction force between each protein molecule and the pure anatase TiO2 surface was characterized by fitting the adhesion and adsorption capacity per unit contact area, and it was found that the adhesion forces were approximately 0.86, 2.63, and 4.41 nN for lysozyme, myoglobin, and BSA, respectively. Moreover, we reported that the molecular interaction force was independent of the surface topography of the material but the protein type is a factor of the interaction. These experimental results on the molecular level provide helpful insights for stimulating model calculation and molecular simulation studies of protein interaction with surfaces.
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Affiliation(s)
- Yihui Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Rong An
- Herbert Gleiter Institute of Nanoscience, Nanjing University of Science & Technology , Nanjing 210094, P. R. China
| | - Shuangliang Zhao
- School of Chemical Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China
| | - Wei Cao
- State Key Laboratory of Tribology, Tsinghua University , Beijing 100084, China
| | - Liangliang Huang
- School of Chemical, Biological & Materials Engineering, University of Oklahoma , Norman, Oklahoma 73019, United States
| | - Wei Zhuang
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Linghong Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
| | - Xiaohua Lu
- State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University , Nanjing 210009, P. R. China
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16
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Szott LM, Irvin CA, Trollsas M, Hossainy S, Ratner BD. Blood compatibility assessment of polymers used in drug eluting stent coatings. Biointerphases 2016; 11:029806. [PMID: 27083991 PMCID: PMC5014517 DOI: 10.1116/1.4944586] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 02/29/2016] [Accepted: 03/03/2016] [Indexed: 11/17/2022] Open
Abstract
Differences in thrombosis rates have been observed clinically between different drug eluting stents. Such differences have been attributed to numerous factors, including stent design, injury created by the catheter delivery system, coating application technologies, and the degree of thrombogenicity of the polymer. The relative contributions of these factors are generally unknown. This work focuses on understanding the thrombogenicity of the polymer by examining mechanistic interactions with proteins, human platelets, and human monocytes of a number of polymers used in drug eluting stent coatings, in vitro. The importance for blood interactions of adsorbed albumin and the retention of albumin was suggested by the data. Microscopic imaging and immunostaining enhanced the interpretation of results from the lactate dehydrogenase cell counting assay and provided insight into platelet interactions, total quantification, and morphometry. In particular, highly spread platelets may be surface-passivating, possibly inhibiting ongoing thrombotic events. In many of the assays used here, poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) showed a differentiated protein deposition pattern that may contribute to the explanation of the consistently thromboresistant blood-materials interaction for fluororpolymers cited in literature. These results are supportive of one of several possible factors contributing to the good thromboresistant clinical safety performance of PVDF-HFP coated drug eluting stents.
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Affiliation(s)
- Luisa Mayorga Szott
- Department of Bioengineering, University of Washington, Seattle, Washington 98195
| | - Colleen A Irvin
- Department of Bioengineering, University of Washington, Seattle, Washington 98195
| | - Mikael Trollsas
- Abbott Vascular, Innovation Incubator, Santa Clara, California 95052
| | - Syed Hossainy
- Abbott Vascular, Innovation Incubator, Santa Clara, California 95052
| | - Buddy D Ratner
- Department of Bioengineering, University of Washington, Seattle, Washington 98195 and Department of Chemical Engineering, University of Washington, Seattle, Washington 98195
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17
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Huang J, He T, He X, Xu J, Zuo B, Wang X. Fabrication of V-shaped brushes consisting of two highly incompatible arms of PEG and fluorinated PMMA and their protein-resistance performance. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jin Huang
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Tingting He
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Xumiao He
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Jianquan Xu
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Biao Zuo
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
| | - Xinping Wang
- Department of Chemistry; Key Laboratory of Advanced Textile Materials and Manufacturing Technology of Education Ministry, Zhejiang Sci-Tech University; Hangzhou 310018 China
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18
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Wang L, Li H, Chen S, Nie C, Cheng C, Zhao C. Interfacial Self-Assembly of Heparin-Mimetic Multilayer on Membrane Substrate as Effective Antithrombotic, Endothelialization, and Antibacterial Coating. ACS Biomater Sci Eng 2015; 1:1183-1193. [PMID: 33429557 DOI: 10.1021/acsbiomaterials.5b00320] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
In this study, we design the interfacial self-assembly of heparin-mimetic multilayer on poly(ether sulfone) (PES) membrane, which can endow the substrate with excellent cytocompatibility, highly hemocompatibility and enhanced antibacterial properties. The coated 3D sponge-like multilayer was fabricated by surface engineered layer by layer assembly of sulfonic amino polyether sulfone (SNPES) and quaternized chitosan (QC). The cell morphology observation and viability evaluation suggested that the assembled multilayer coating had remarkable cytocompatibility with endothelial cells due to the synergistic promotion of bovine serum albumin adsorption and heparin-mimetic groups; which further indicated that surface endothelialization could be achieved on the heparin-mimetic multilayer. The systematical tests of antithrombotic and blood activation indicated that the heparin-mimetic multilayer-coated membrane owned significantly suppressed adsorption of bovine serum fibrinogen, platelet adhesion and activation, prolonged clotting times, as well as lower activation of blood complement. Furthermore, the antibacterial test suggested the multilayer coated substrates exhibited obvious inhibition capability for both Escherichia coli and Staphylococcus aureus. Therefore, we believe that the developed SNPES/QC multilayer on PES membrane show great potential as a multifunctional coating toward versatile biomedical applications due to the integrated and highly effective antithrombotic, endothelialization, and antibacterial properties.
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Affiliation(s)
- Lingren Wang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.,Jiangsu Provincial Key Laboratory for Interventional Medical Devices. Huaiyin Institute of Technology, Huaian 223003, China
| | - Hao Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Shuai Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Chuanxiong Nie
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China.,Department of Chemistry and Biochemistry, Freie Universitat Berlin, Takustrasse 3, 14195 Berlin, Germany
| | - Changsheng Zhao
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China
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19
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Shao Q, Jiang S. Molecular understanding and design of zwitterionic materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:15-26. [PMID: 25367090 DOI: 10.1002/adma.201404059] [Citation(s) in RCA: 542] [Impact Index Per Article: 60.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 10/04/2014] [Indexed: 05/20/2023]
Abstract
Zwitterionic materials have moieties possessing cationic and anionic groups. This molecular structure leads to unique properties that can be the solutions of various application problems. A typical example is that zwitterionic carboxybetaine (CB) and sulfobetaine (SB) materials resist nonspecific protein adsorption in complex media. Considering the vast number of cationic and anionic groups in the current chemical inventory, there are many possible structural variations of zwitterionic materials. The diversified structures provide the possibility to achieve many desired properties and urge a better understanding of zwitterionic materials to provide design principles. Molecular simulations and modeling are a versatile tool to understand the structure-property relationships of materials at the molecular level. This progress report summarizes recent simulation and modeling studies addressing two fundamental questions regarding zwitterionic materials and their applications as biomaterials. First, what are the differences between zwitterionic and nonionic materials? Second, what are the differences among zwitterionic materials? This report also demonstrates a molecular design of new protein-resistant zwitterionic moieties beyond conventional CB and SB based on design principles developed from these simulation studies.
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Affiliation(s)
- Qing Shao
- Department of Chemical Engineering, University of Washington, Seattle, Washington, 98195, USA
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20
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Wang L, Su B, Cheng C, Ma L, Li S, Nie S, Zhao C. Layer by layer assembly of sulfonic poly(ether sulfone) as heparin-mimicking coatings: scalable fabrication of super-hemocompatible and antibacterial membranes. J Mater Chem B 2015; 3:1391-1404. [PMID: 32264490 DOI: 10.1039/c4tb01865f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In this study, super-hemocompatible and antibacterial polymeric membranes with surface coated nanofilms were fabricated by LBL assembly of water-soluble heparin-mimicking polymer and quaternized chitosan.
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Affiliation(s)
- Lingren Wang
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Baihai Su
- Department of Nephrology
- West China Hospital
- Sichuan University
- Chengdu 610041
- People's Republic of China
| | - Chong Cheng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Lang Ma
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Shuangsi Li
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Shengqiang Nie
- College of Chemistry and Materials Engineering
- Guiyang University
- Guiyang 550005
- China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
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21
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Reducing the Foreign Body Reaction by Surface Modification with Collagen/Hyaluronic Acid Multilayered Films. ACTA ACUST UNITED AC 2014. [DOI: 10.1155/2014/718432] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biological response against foreign implants often leads to encapsulation, possibly resulting in malfunction of implants devices. The aim of this study was to reduce the foreign body reaction by surface modification of biomaterials through layer-by-layer deposition of type I collagen (COL)/hyaluronic acid (HA) multilayer films. Polydimethylsiloxane (PDMS) samples were coated with alternative COL and HA layers with different layers. We found that the in vitro adhesion, proliferation, and activation of macrophage-like cells were greatly decreased by COL/HA multilayered deposition. The PDMS samples modified with 20 bilayers of COL/HA were implanted in rats for 3 weeks, and the thickness of encapsulation surrounding the samples was decreased by 29–57% compared to the control unmodified PDMS. This study demonstrates the potential of COL/HA multilayer films to reduce foreign body reaction.
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22
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Ahmed F, Choudhury NR, Dutta NK, Brito e Abreu S, Zannettino A, Duncan E. Interaction of Platelets with Poly(vinylidene fluoride-co-hexafluoropropylene) Electrospun Surfaces. Biomacromolecules 2014; 15:744-55. [DOI: 10.1021/bm4015396] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Furqan Ahmed
- Ian
Wark Research Institute, University of South Australia, Mawson Lakes
Campus, South Australia, Australia
| | - Namita Roy Choudhury
- Ian
Wark Research Institute, University of South Australia, Mawson Lakes
Campus, South Australia, Australia
| | - Naba K. Dutta
- Ian
Wark Research Institute, University of South Australia, Mawson Lakes
Campus, South Australia, Australia
| | - Susana Brito e Abreu
- Ian
Wark Research Institute, University of South Australia, Mawson Lakes
Campus, South Australia, Australia
| | - Andrew Zannettino
- Myeloma
Research Laboratory, School of Medical Science, University of Adelaide, South
Australia, Australia
| | - Elizabeth Duncan
- Myeloma
Research Laboratory, School of Medical Science, University of Adelaide, South
Australia, Australia
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23
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Nie S, Tang M, Cheng C(S, Yin Z, Wang L, Sun S, Zhao C. Biologically inspired membrane design with a heparin-like interface: prolonged blood coagulation, inhibited complement activation, and bio-artificial liver related cell proliferation. Biomater Sci 2014; 2:98-109. [DOI: 10.1039/c3bm60165j] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Nie S, Qin H, Cheng C, Zhao W, Sun S, Su B, Zhao C, Gu Z. Blood activation and compatibility on single-molecular-layer biointerfaces. J Mater Chem B 2014; 2:4911-4921. [PMID: 32261783 DOI: 10.1039/c4tb00555d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Research on the interactions between living systems and materials is fuelled by diverse biomedical needs, for example, drug encapsulation and stimulated release, stem cell proliferation and differentiation, cell and tissue cultures, as well as artificial organs.
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Affiliation(s)
- Shengqiang Nie
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Hui Qin
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Chong Cheng
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Weifeng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Shudong Sun
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
| | - Baihai Su
- Department of Nephrology
- West China Hospital
- Sichuan University
- Chengdu 610041, People's Republic of China
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065, People's Republic of China
- National Engineering Research Center for Biomaterials
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064, People's Republic of China
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25
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Srokowski EM, Woodhouse KA. Evaluation of the bulk platelet response and fibrinogen interaction to elastin-like polypeptide coatings. J Biomed Mater Res A 2013; 102:540-51. [DOI: 10.1002/jbm.a.34699] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 02/18/2013] [Accepted: 02/21/2013] [Indexed: 11/10/2022]
Affiliation(s)
- Elizabeth M. Srokowski
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Ontario Canada
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Ontario Canada
| | - Kimberly A. Woodhouse
- Department of Chemical Engineering and Applied Chemistry; University of Toronto; Ontario Canada
- Institute of Biomaterials and Biomedical Engineering; University of Toronto; Ontario Canada
- Department of Chemical Engineering; Queen's University; Ontario Canada
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26
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Chien HW, Tsai CC, Tsai WB, Wang MJ, Kuo WH, Wei TC, Huang ST. Surface conjugation of zwitterionic polymers to inhibit cell adhesion and protein adsorption. Colloids Surf B Biointerfaces 2013; 107:152-9. [DOI: 10.1016/j.colsurfb.2013.01.071] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/23/2013] [Accepted: 01/25/2013] [Indexed: 11/29/2022]
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27
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Tang M, Xue J, Yan K, Xiang T, Sun S, Zhao C. Heparin-like surface modification of polyethersulfone membrane and its biocompatibility. J Colloid Interface Sci 2012; 386:428-40. [DOI: 10.1016/j.jcis.2012.07.076] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Revised: 07/06/2012] [Accepted: 07/12/2012] [Indexed: 11/27/2022]
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28
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Tan J, McClung WG, Brash JL. Non-fouling biomaterials based on blends of polyethylene oxide copolymers and polyurethane: simultaneous measurement of platelet adhesion and fibrinogen adsorption from flowing whole blood. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 24:497-506. [PMID: 23565690 DOI: 10.1080/09205063.2012.690286] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Measurements of platelet adhesion and fibrinogen adsorption from flowing whole blood to a series of polyethylene oxide (PEO)-based materials were carried out. A unique experimental design was used in which both quantities were measured in the same experiment. The materials consisted of a polyurethane (PU) as a matrix into which various triblock copolymers of general structure PEO-PU-PEO were blended; the PU block was the same in all materials but the PEO blocks ranged in molecular weight from 550 to 5000. Platelets were isolated from fresh human blood and labeled with (51)Cr; purified fibrinogen was labeled with (125)I. A whole blood preparation containing these labeled species was used for the adhesion/adsorption studies. The surfaces were exposed to the flowing blood in a cone and plate device at a wall shear rate of 300 s(-1). It was found that both platelet adhesion and fibrinogen adsorption decreased with increasing copolymer content in the blends and with decreasing PEO block size for a given copolymer content. The block size effect was due probably to higher PEO surface coverage for the lower molecular weight blocks. Fibrinogen adsorption and platelet adhesion were linearly and strongly correlated. The best performing materials showed very low fibrinogen adsorption of the order of 25 ng/cm(2), and correspondingly low platelet densities around 10,000 per cm(2), i.e. fractional platelet coverage in the vicinity of 0.2%.
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Affiliation(s)
- J Tan
- Department of Chemical Engineering and School of Biomedical Engineering, McMaster University, Hamilton, Ontario, Canada
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29
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Tsai WB, Chen YH, Chien HW. Collaborative Cell-Resistant Properties of Polyelectrolyte Multilayer Films and Surface PEGylation on Reducing Cell Adhesion to Cytophilic Surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:1611-28. [DOI: 10.1163/092050609x12464345178248] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Wei-Bor Tsai
- a Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Ying-Hao Chen
- b Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
| | - Hsiu-Wen Chien
- c Department of Chemical Engineering, National Taiwan University, No. 1 Roosevelt Road, Sec. 4, Taipei, 106, Taiwan
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30
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Kuo WH, Wang MJ, Chang CW, Wei TC, Lai JY, Tsai WB, Lee C. Improvement of hemocompatibility on materials by photoimmobilization of poly(ethylene glycol). ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15435h] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Tsai WB, Chen WT, Chien HW, Kuo WH, Wang MJ. Poly(dopamine) coating of scaffolds for articular cartilage tissue engineering. Acta Biomater 2011; 7:4187-94. [PMID: 21839186 DOI: 10.1016/j.actbio.2011.07.024] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2011] [Revised: 07/24/2011] [Accepted: 07/25/2011] [Indexed: 11/17/2022]
Abstract
A surface modification technique based on poly(dopamine) deposition developed from oxidative polymerization of dopamine is known to promote cell adhesion to several cell-resistant substrates. In this study this technique was applied to articular cartilage tissue engineering. The adhesion and proliferation of rabbit chondrocytes were evaluated on poly(dopamine)-coated polymer films, such as polycaprolactone, poly(L-lactide), poly(lactic-co-glycolic acid) and polyurethane, biodegradable polymers that are commonly used in tissue engineering. Cell adhesion was significantly increased by merely 15 s of dopamine incubation, and 4 min incubation was enough to reach maximal cell adhesion, a 1.35-2.69-fold increase compared with that on the untreated substrates. Cells also grew much faster on the poly(dopamine)-coated substrates than on untreated substrates. The increase in cell affinity for poly(dopamine)-coated substrates was demonstrated via enhancement of the immobilization of serum adhesive proteins such as fibronectin. When the poly(dopamine)-coating technique was applied to three-dimensional (3-D) polyurethane scaffolds, the proliferation of chondrocytes and the secretion of glycosaminoglycans were increased compared with untreated scaffolds. Our results show that the deposition of a poly(dopamine) layer on 3-D porous scaffolds is a simple and promising strategy for articular cartilage tissue engineering, and may be applied to other types of tissue engineering.
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Affiliation(s)
- Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, 1 Roosevelt Road, Section 4, Taipei 106, Taiwan.
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32
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Kuo WH, Wang MJ, Chien HW, Wei TC, Lee C, Tsai WB. Surface Modification with Poly(sulfobetaine methacrylate-co-acrylic acid) To Reduce Fibrinogen Adsorption, Platelet Adhesion, and Plasma Coagulation. Biomacromolecules 2011; 12:4348-56. [DOI: 10.1021/bm2013185] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wei-Hsuan Kuo
- Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Rd.,
Sec. 4, Taipei 106, Taiwan
| | - Meng-Jiy Wang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Rd.,
Sec. 4, Taipei 106, Taiwan
| | - Hsiu-Wen Chien
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 106,
Taiwan
| | - Ta-Chin Wei
- Department of Chemical
Engineering, Chung Yuan Christian University, 200, Chung Pei Rd., Chung Li 320, Taiwan
| | - Chiapyng Lee
- Department of Chemical Engineering, National Taiwan University of Science and Technology, 43, Keelung Rd.,
Sec. 4, Taipei 106, Taiwan
| | - Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei 106,
Taiwan
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33
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Feng W, Gao X, McClung G, Zhu S, Ishihara K, Brash JL. Methacrylate polymer layers bearing poly(ethylene oxide) and phosphorylcholine side chains as non-fouling surfaces: in vitro interactions with plasma proteins and platelets. Acta Biomater 2011; 7:3692-9. [PMID: 21693202 DOI: 10.1016/j.actbio.2011.06.007] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2011] [Revised: 06/02/2011] [Accepted: 06/07/2011] [Indexed: 11/28/2022]
Abstract
Two methacrylate monomers, oligo(ethylene glycol) methyl ether methacrylate (OEGMA; MW=300 g mol(-1), poly(ethylene glycol) (PEG) side chains of average length n=4.5) and 2-methacryloyloxyethyl phosphorylcholine (MPC; MW=295 g mol(-1)), were grafted from silicon wafer surfaces via surface-initiated atom transfer radical polymerization. The grafted surfaces were used as model PEG and phosphorylcholine surface systems to allow comparison of the effectiveness of these two motifs in the prevention of plasma protein adsorption and platelet adhesion. It was found that at high graft density fibrinogen adsorption from plasma on the poly(MPC) and poly(OEGMA) surfaces for a given graft chain length was comparable and extremely low. At low graft density, poly(OEGMA) was slightly more effective than poly(MPC) in resisting fibrinogen adsorption from plasma. Flowing whole blood experiments showed that at low graft density the poly(OEGMA) surfaces were more resistant to fibrinogen adsorption and platelet adhesion than the poly(MPC) surfaces. At high graft density, both the poly(MPC) and poly(OEGMA) surfaces were highly resistant to fibrinogen and platelets. Immunoblots of proteins eluted from the surfaces after contact with human plasma were probed with antibodies against a range of proteins, including the contact phase clotting factors, fibrinogen, albumin, complement C3, IgG, vitronectin and apolipoprotein A-I. The blot responses were weak on the poly(MPC) and poly(OEGMA) surfaces at low graft density and zero at high graft density, again indicating strongly protein resistant properties for these surfaces. Since the side chains of the poly(OEGMA) are about 50% greater in size than those of poly(MPC), the difference in protein resistance between the poly(MPC) and poly(OEGMA) surfaces at low graft density may be due to the difference in surface coverage of the two graft types.
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Affiliation(s)
- Wei Feng
- Department of Chemical Engineering and School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada L8P 4L7
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34
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Carr LR, Zhou Y, Krause JE, Xue H, Jiang S. Uniform zwitterionic polymer hydrogels with a nonfouling and functionalizable crosslinker using photopolymerization. Biomaterials 2011; 32:6893-9. [DOI: 10.1016/j.biomaterials.2011.06.006] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Accepted: 06/04/2011] [Indexed: 11/26/2022]
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35
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Tsai WB, Chien CY, Thissen H, Lai JY. Dopamine-assisted immobilization of poly(ethylene imine) based polymers for control of cell-surface interactions. Acta Biomater 2011; 7:2518-25. [PMID: 21402183 DOI: 10.1016/j.actbio.2011.03.010] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 02/16/2011] [Accepted: 03/09/2011] [Indexed: 11/30/2022]
Abstract
Non-fouling coatings play a critical role in many biomedical applications, such as diagnostic assay materials, biosensors, blood contacting devices and other implants. In the present work we have developed a facile, one step deposition method based on dopamine polymerization for preparation of non-fouling and biotinylated surfaces for biomedical applications. Poly(ethylene imine)-graft-poly(ethylene glycol) co-polymer (PEI-g-PEG) was mixed with an alkaline dopamine solution and then deposited onto different substrates. The dopamine coatings formed by this method were characterized by X-ray photoelectron spectroscopy (XPS), and the results indicated successful deposition of PEG. The resultant dopamine coatings formed on tissue culture polystyrene by this method revealed successful deposition of PEG, as shown by XPS. PEI-g-PEG/dopamine deposition for 2h inhibited the adsorption of serum proteins and the attachment of fibroblasts, suggesting that PEG molecules were immobilized in a sufficient density on the surface of the coating. Furthermore, co-deposition of PEI-g-PEG and PEI-g-biotin in alkaline dopamine solutions provided a cell-resisting background surface, at the same time providing accessible biotin molecules. We have demonstrated that the surface can be used for the selective binding of avidin, followed by the binding of Arg-Gly-Asp-Ser-biotin and enhanced cell attachment by specific cell-ligand interactions. In conclusion, our one step immobilization method provides a simple tool to fabricate surfaces with controllable cell affinity.
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Affiliation(s)
- Wei-Bor Tsai
- Department of Chemical Engineering, National Taiwan University, 1 Roosevelt Road, Section 4, Taipei 106, Taiwan.
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36
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Tsai WB, Chen YR, Liu HL, Lai JY. Fabrication of UV-crosslinked chitosan scaffolds with conjugation of RGD peptides for bone tissue engineering. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.02.003] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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37
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Functionalizable and nonfouling zwitterionic carboxybetaine hydrogels with a carboxybetaine dimethacrylate crosslinker. Biomaterials 2011; 32:961-8. [DOI: 10.1016/j.biomaterials.2010.09.067] [Citation(s) in RCA: 131] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2010] [Accepted: 09/30/2010] [Indexed: 02/02/2023]
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38
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Yang W, Xue H, Carr LR, Wang J, Jiang S. Zwitterionic poly(carboxybetaine) hydrogels for glucose biosensors in complex media. Biosens Bioelectron 2011; 26:2454-9. [DOI: 10.1016/j.bios.2010.10.031] [Citation(s) in RCA: 120] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 10/07/2010] [Accepted: 10/19/2010] [Indexed: 11/25/2022]
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39
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Chien HW, Wu SP, Kuo WH, Wang MJ, Lee C, Lai JY, Tsai WB. Modulation of hemocompatibility of polysulfone by polyelectrolyte multilayer films. Colloids Surf B Biointerfaces 2010; 77:270-8. [DOI: 10.1016/j.colsurfb.2010.02.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Revised: 01/30/2010] [Accepted: 02/03/2010] [Indexed: 11/17/2022]
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40
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Mediating high levels of gene transfer without cytotoxicity via hydrolytic cationic ester polymers. Biomaterials 2010; 31:4186-93. [DOI: 10.1016/j.biomaterials.2010.01.110] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Accepted: 01/18/2010] [Indexed: 02/04/2023]
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41
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Tsai WB, Chen RPY, Wei KL, Chen YR, Liao TY, Liu HL, Lai JY. Polyelectrolyte multilayer films functionalized with peptides for promoting osteoblast functions. Acta Biomater 2009; 5:3467-77. [PMID: 19497392 DOI: 10.1016/j.actbio.2009.05.034] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2009] [Revised: 05/24/2009] [Accepted: 05/26/2009] [Indexed: 01/20/2023]
Abstract
Layer-by-layer deposition of polyelectrolyte multilayer (PEM) thin films has recently been applied to biomaterial applications. This simple and versatile technique provides a wide variety of potential utilization by insertion of biomolecules such as cell adhesion peptides. In this work dual peptides containing RGD (a cell-binding domain) and LHRRVKI (a heparin-binding domain) were immobilized onto polystyrene by the PEM technique and the effects on osteoblast cell culture were investigated. These peptides were conjugated to the amino groups of poly(allylamine hydrochloride) and then adsorbed onto the top of a 10 layer poly(allylamine hydrochloride)/poly(acrylic acid) film assembled at either pH 2.0 or pH 6.5. Osteoblasts, isolated from neonatal rat calvariae, were then seeded and cultured on the peptide-conjugated surfaces. We found that the cells adhered and grew better on the RGD-conjugated PEM films. The osteoblasts exhibited a better differentiated phenotype on the pH 2.0 films than the pH 6.5 films with respect to calcium deposition. The incorporation of LHRRVKI did not support cell adhesion, growth and matrix mineral deposition. Our results showed that the efficacy of RGD conjugation on osteoblast behavior was affected by the base PEM film.
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Modulation of morphology and functions of human hepatoblastoma cells by nano-grooved substrata. Acta Biomater 2009; 5:1442-54. [PMID: 19201667 DOI: 10.1016/j.actbio.2009.01.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2008] [Revised: 12/28/2008] [Accepted: 01/05/2009] [Indexed: 11/21/2022]
Abstract
It is known that cellular behavior is affected by nano-patterned topography. For example, many cell types tend to align and extend along the direction of nano-grooves/ridges structures. In this study, we investigated the impact of nano-grooves/ridges on hepatocyte morphology and functions. HepG2/C3A (C3A) cells were cultured on nano-grooved silicon or polystyrene substrata with various widths (from 100 to 500 nm) and depths (from 100 to 380 nm). Nano-grooved substrates induced dramatic changes in C3A cell morphology. The cells formed spheroids on the flat substrates, while C3A cells spread and grew confluently with elongated and aligned morphology along the nano-grooves/ridges. Albumin synthesis was enhanced on the nano-grooved silicon substrates compared to the flat surface, and was decreased with increasing groove depths. Urea conversion on the shallow grooves (400 nm wide and 100 nm deep) remained at the same level of that on the flat surfaces, but was decreased on the deeper grooves. We found that the functions of hepatocytes were enhanced on the substrates with shallow grooves. The nano-grooved substrates may be applied as in vitro culture systems of hepatocytes for both diagnostic and therapeutic applications.
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Zhang Z, Zhang M, Chen S, Horbett TA, Ratner BD, Jiang S. Blood compatibility of surfaces with superlow protein adsorption. Biomaterials 2008; 29:4285-91. [DOI: 10.1016/j.biomaterials.2008.07.039] [Citation(s) in RCA: 393] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2008] [Accepted: 07/28/2008] [Indexed: 11/16/2022]
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Manso Silván M, Valsesia A, Hasiwa M, Gilliland D, Ceccone G, Rossi F. Surface Characterization of Biopolymer Micropatterns Processed by Ion-Beam Modification and PECVD. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/cvde.200606580] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chiumiento A, Lamponi S, Barbucci R. Role of Fibrinogen Conformation in Platelet Activation. Biomacromolecules 2007; 8:523-31. [PMID: 17291077 DOI: 10.1021/bm060664m] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Platelet adhesion and activation induced by fibrinogen (Fbg) coating on polysaccharide layers of hyaluronic acid (Hyal) and its sulfated derivative (HyalS) were analyzed. Hyal or HyalS was coated and grafted on the glass substrate using a photolithographic method. The Fbg coating was achieved by two different routes: the immobilization of Fbg by means of covalent bond to the polysaccharide layers and the mere adsorption of Fbg to Hyal and HyalS surfaces. Platelet adhesion and activation to the surfaces were evaluated using, respectively, scanning electron microscopy (SEM) and quantifying the release of Platelet Factor 4 by ELISA. The method used for the coating of the surfaces with the Fbg influenced the platelet response. In fact, platelet adhesion and activation took place on surfaces covered by bound Fbg but not on those containing adsorbed Fbg. To explain this difference, the molecular mechanism involved in the Fbg--platelet interaction was investigated blocking platelet membrane receptors by monoclonal antibodies. Because the interaction between Fbg and the GPIIb/IIIa platelet membrane receptor was the only molecular pathway involved, Fbg conformation after the interaction (adsorption or binding) with the Hyal and the HyalS chains and the role of serum proteins adsorbed on the Fbg containing surfaces were accurately analyzed. Both adsorbed and bound Fbg prevented the adsorption of further serum proteins; consequently, a direct interaction between Fbg and platelets was supposed and the different platelet behavior was ascribed to the different conformational changes that occurred after the adsorption and the chemical binding of the Fbg to the Hyal and HyalS surfaces.
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Affiliation(s)
- A Chiumiento
- CRISMA and Department of Chemical and Biosystem Sciences and Technologies, University of Siena, Via A. Moro n. 2, Siena 53100, Italy
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Nonckreman CJ, Rouxhet PG, Dupont-Gillain CC. Dual radiolabeling to study protein adsorption competition in relation with hemocompatibility. J Biomed Mater Res A 2007; 81:791-802. [PMID: 17226808 DOI: 10.1002/jbm.a.31111] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Human fibrinogen (Fg) and albumin (HSA) were labeled with (3)H and (14)C, respectively. Dual counting allowed the adsorbed amount of the two proteins to be determined simultaneously. Single adsorption, adsorption of the two proteins in competition, but also exchange (substitution by molecules of the same nature) and displacement (desorption under the action of the other protein) experiments were performed on two model surfaces, glass and polystyrene (PS), as well as on pure polyvinylchloride (PVC-s) and on PVC from blood bag (PVC-b). As expected, the adsorbed amount of a single protein is higher on a hydrophobic compared to a hydrophilic surface. When the two proteins are adsorbed in competition, they are found in equal proportion on glass, while HSA is twice more abundant than Fg on PS and PVC-s and about six times more abundant on PVC-b. This trend is related to an increase of the water contact angle of the substrates. For PVC-b, the contact angle is affected by the presence of aliphatic components exposed at the extreme surface, as determined by angle-resolved X-ray photoelectron spectroscopy. In exchange and displacement experiments, the first adsorbed molecules remain dominating on PS while they can be removed from glass. Given the known importance of HSA and Fg adsorption for the fate of materials placed in contact with blood, the method described in this paper may be used as a first approach to orient the design of surfaces with improved hemocompatibility.
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Affiliation(s)
- Cristèle J Nonckreman
- Unité de Chimie des Interfaces, Université Catholique de Louvain, Louvain-la-Neuve, Belgium
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Rodrigues SN, Gonçalves IC, Martins MCL, Barbosa MA, Ratner BD. Fibrinogen adsorption, platelet adhesion and activation on mixed hydroxyl-/methyl-terminated self-assembled monolayers. Biomaterials 2006; 27:5357-67. [PMID: 16842847 DOI: 10.1016/j.biomaterials.2006.06.010] [Citation(s) in RCA: 154] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2006] [Accepted: 06/15/2006] [Indexed: 10/24/2022]
Abstract
The effect of surface wettability on fibrinogen adsorption, platelet adhesion and platelet activation was investigated using self-assembled monolayers (SAMs) containing different ratios of longer chain methyl- and shorter chain hydroxyl-terminated alkanethiols (C15CH3 vs. C11OH) on gold. Protein adsorption studies were performed using radiolabeled human fibrinogen (HFG). Platelet adhesion and activation studies with and without pre-adsorbed fibrinogen, albumin and plasma were assessed using scanning electron microscopy (SEM) and a glutaraldehyde-induced fluorescence technique (GIFT). Results demonstrated a linear decrease of HFG adsorption with the increase of OH groups on the monolayer (increase of the hydrophilicity). Platelet adhesion and activation also decrease with increase of hydrophilicity of surface. Concerning SAMs pre-immersed in proteins, fibrinogen adsorption was related with high platelet adhesion and activation. The passivant effect of albumin on platelet adhesion and activation was only demonstrated on SAMs contained C11OH. When all the blood proteins are present (plasma) platelet adhesion was almost absent on SAMs with 65% and 100% C11OH. This could be explained by the higher albumin affinity of the SAMs with 65% C11OH and the lower total protein adsorption associated with SAMs with 100% C11OH.
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Affiliation(s)
- Sofia N Rodrigues
- INEB - Instituto de Engenharia Biomédica, Laboratório de Biomateriais, Universidade do Porto, Rua do Campo Alegre, 823, 4150-180 Porto, Portugal
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Scheideler L, Rupp F, Wendel HP, Sathe S, Geis-Gerstorfer J. Photocoupling of fibronectin to titanium surfaces influences keratinocyte adhesion, pellicle formation and thrombogenicity. Dent Mater 2006; 23:469-78. [PMID: 16624401 DOI: 10.1016/j.dental.2006.03.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2005] [Revised: 02/13/2006] [Accepted: 03/09/2006] [Indexed: 11/23/2022]
Abstract
OBJECTIVES Coating of implant surfaces with biomolecules can influence basic host responses and enhance subsequent tissue integration. The biological factors have to be immobilized on the implant material. Human fibronectin (Fn) was used as a model protein and covalently coupled to titanium (Ti) surfaces via silanization and an anthraquinone linker. The impact on several aspects of initial host/biomaterial interactions (keratinocyte adhesion, platelet interactions and pellicle formation) was studied. METHODS Coupling efficiency was characterized by immunological techniques. The effects of coupled Fn on initial host/biomaterial interactions were assessed. Cell adhesion and spreading were investigated by fluorescent staining, pellicle formation by an acoustic sensor system (quartz crystal microbalance with dissipation, QCM-D), and platelet adhesion as one parameter mediating the inflammatory response by scanning electron microscopy (SEM) and immunological assays. RESULTS Coupling efficiency was related to irradiation time used for photochemical coupling of the UV-activated anthraquinone to the silanized Ti surface. With an optimized protocol, the amount of Fn coupled to the surface could be almost doubled compared to standard dip-coating methods. On the anthraquinone-coupled Fn coatings, cell adhesion and spreading of human keratinocytes was significantly enhanced. Online detection of pellicle formation revealed strong reversibility of saliva protein adhesion on Fn coated surfaces compared to the pure Ti surface. Furthermore, the Fn coated Ti showed a low thrombogenicity. SIGNIFICANCE This study suggests that anthraquinone-coupled biological coatings may be useful for biofunctionalization of Ti dental implants by enhancement of soft tissue re-integration (restoration of the epithelial seal) combined with diminished pellicle formation.
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Affiliation(s)
- Lutz Scheideler
- Department of Prosthodontics, Section Medical Materials and Technology, Center for Dental, Oral and Maxillofacial Medicine, University of Tübingen, Germany.
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Wu Y, Simonovsky FI, Ratner BD, Horbett TA. The role of adsorbed fibrinogen in platelet adhesion to polyurethane surfaces: A comparison of surface hydrophobicity, protein adsorption, monoclonal antibody binding, and platelet adhesion. J Biomed Mater Res A 2005; 74:722-38. [PMID: 16037938 DOI: 10.1002/jbm.a.30381] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ten specially synthesized polyurethanes (PUs) were used to investigate the effects of surface properties on platelet adhesion. Surface composition and hydrophilicity, fibrinogen (Fg) and von Willebrand's factor (vWf) adsorption, monoclonal anti-Fg binding, and platelet adhesion were measured. PUs preadsorbed with afibrinogenemic plasma or serum exhibited very low platelet adhesion, while adhesion after preadsorption with vWf deficient plasma was not reduced, showing that Fg is the key plasma protein mediating platelet adhesion under static conditions. Platelet adhesion to the ten PUs after plasma preadsorption varied greatly, but was only partially consistent with Fg adsorption. Thus, while very hydrophilic PU copolymers containing PEG that had ultralow Fg adsorption also had very low platelet adhesion, some of the more hydrophobic PUs had relatively high Fg adsorption but still exhibited lower platelet adhesion. To examine why some PUs with high Fg adsorption had lower platelet adhesion, three monoclonal antibodies (mAbs) that bind to sites in Fg thought to mediate platelet adhesion were used. The antibodies were: M1, specific to gamma-chain C-terminal; and R1 and R2, specific to RGD containing regions in the alpha-chain N- and C-terminal, respectively. Platelet adhesion was well correlated with M1 binding, but not with R1 or R2 binding. When these mAbs were incubated with plasma preadsorbed surfaces, they blocked adhesion to variable degrees. The ability of the R1 and R2 mAbs to partially block adhesion to adsorbed Fg suggests that RGD sites in the alpha chain may also be involved in mediating platelet adhesion and act synergistically with the C-terminal of the gamma-chain.
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Affiliation(s)
- Yuguang Wu
- Department of Bioengineering, Box 351750, University of Washington, Seattle, Washington 98195, USA
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