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Goyama T, Fujii Y, Muraoka G, Nakatani T, Ousaka D, Imai Y, Kuwada N, Tsuji T, Shuku T, Uchida HA, Nishibori M, Oozawa S, Kasahara S. Comprehensive hemocompatibility analysis on the application of diamond-like carbon to ePTFE artificial vascular prosthesis. Sci Rep 2023; 13:8386. [PMID: 37225824 DOI: 10.1038/s41598-023-35594-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 05/20/2023] [Indexed: 05/26/2023] Open
Abstract
The aim of this study was to obtain comprehensive data regarding the hemocompatibility of diamond-like carbon (DLC)-coated expanded polytetrafluoroethylene (ePTFE). DLC increased the hydrophilicity and smoothened the surface and fibrillar structure, respectively, of the ePTFE. DLC-coated ePTFE had more albumin and fibrinogen adsorption and less platelet adhesion than uncoated ePTFE. There were scarce red cell attachments in in vitro human and in vivo animal (rat and swine) whole blood contact tests in both DLC-coated and uncoated ePTFE. DLC-coated ePTFE had a similar but marginally thicker band movement than uncoated-ePTFE with SDS-PAGE after human whole blood contact test. In addition, survival studies of aortic graft replacement in rats (1.5 mm graft) and arteriovenous shunt in goats (4 mm graft) were performed to compare the patency and clot formation between DLC-coated and uncoated ePTFE grafts. Comparable patency was observed in both animal models. However, clots were observed in the luminal surface of the patent 1.5 mm DLC-coated ePTFE grafts, but not in that of uncoated ePTFE grafts. In conclusions, hemocompatibility of DLC-coated ePTFE was high and comparable to that of uncoated ePTFE. However, it failed to improve the hemocompatibility of 1.5 mm ePTFE graft probably because increased fibrinogen adsorption canceled the other beneficial effects of DLC.
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Affiliation(s)
- Takashi Goyama
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Yasuhiro Fujii
- Department of Cardiovascular Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan.
| | - Genya Muraoka
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Tatsuyuki Nakatani
- Institute of Frontier Science and Technology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, Okayama, 700-0005, Japan
| | - Daiki Ousaka
- Department of Pharmacology, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Yuichi Imai
- Institute of Frontier Science and Technology, Okayama University of Science, 1-1 Ridai-cho, Kita-ku, Okayama, Okayama, 700-0005, Japan
| | - Noriaki Kuwada
- Department of Cardiovascular Surgery, Kawasaki Medical Hospital, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan
| | - Tatsunori Tsuji
- Department of Cardiovascular Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Takayuki Shuku
- Department of Civil Engineering, Okayama University Graduate School of Environmental and Life Science, 3-1-1 Tsushima naka, Kita-ku, Okayama, Okayama, 700-8530, Japan
| | - Haruhito A Uchida
- Department of Chronic Kidney Disease and Cardiovascular Disease, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Masahiro Nishibori
- Department of Translational Research and Drug Development, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Susumu Oozawa
- Division of Medical Safety Management, Safety Management Facility, Okayama University Hospital, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
| | - Shingo Kasahara
- Department of Cardiovascular Surgery, Okayama University Faculty of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, Okayama, 700-8558, Japan
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Tonev DG, Momchilova AB. Therapeutic Plasma Exchange in Certain Immune-Mediated Neurological Disorders: Focus on a Novel Nanomembrane-Based Technology. Biomedicines 2023; 11:biomedicines11020328. [PMID: 36830870 PMCID: PMC9953422 DOI: 10.3390/biomedicines11020328] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/20/2023] [Accepted: 01/23/2023] [Indexed: 01/26/2023] Open
Abstract
Therapeutic plasma exchange (TPE) is an efficient extracorporeal blood purification technique to remove circulating autoantibodies and other pathogenic substances. Its mechanism of action in immune-mediated neurological disorders includes immediate intravascular reduction of autoantibody concentration, pulsed induction of antibody redistribution, and subsequent immunomodulatory changes. Conventional TPE with 1 to 1.5 total plasma volume (TPV) exchange is a well-established treatment in Guillain-Barre Syndrome, Chronic Inflammatory Demyelinating Polyradiculoneuropathy, Neuromyelitis Optica Spectrum Disorder, Myasthenia Gravis and Multiple Sclerosis. There is insufficient evidence for the efficacy of so-called low volume plasma exchange (LVPE) (<1 TPV exchange) implemented either by the conventional or by a novel nanomembrane-based TPE in these neurological conditions, including their impact on conductivity and neuroregenerative recovery. In this narrative review, we focus on the role of nanomembrane-based technology as an alternative LVPE treatment option in these neurological conditions. Nanomembrane-based technology is a promising type of TPE, which seems to share the basic advantages of the conventional one, but probably with fewer adverse effects. It could play a valuable role in patient management by ameliorating neurological symptoms, improving disability, and reducing oxidative stress in a cost-effective way. Further research is needed to identify which patients benefit most from this novel TPE technology.
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Affiliation(s)
- Dimitar G. Tonev
- Department of Anesthesiology and Intensive Care, Medical University of Sofia, University Hospital “Tzaritza Yoanna—ISUL”, 1527 Sofia, Bulgaria
- Correspondence:
| | - Albena B. Momchilova
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Science, 1113 Sofia, Bulgaria
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Douglass M, Garren M, Devine R, Mondal A, Handa H. Bio-inspired hemocompatible surface modifications for biomedical applications. PROGRESS IN MATERIALS SCIENCE 2022; 130:100997. [PMID: 36660552 PMCID: PMC9844968 DOI: 10.1016/j.pmatsci.2022.100997] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
When blood first encounters the artificial surface of a medical device, a complex series of biochemical reactions is triggered, potentially resulting in clinical complications such as embolism/occlusion, inflammation, or device failure. Preventing thrombus formation on the surface of blood-contacting devices is crucial for maintaining device functionality and patient safety. As the number of patients reliant on blood-contacting devices continues to grow, minimizing the risk associated with these devices is vital towards lowering healthcare-associated morbidity and mortality. The current standard clinical practice primarily requires the systemic administration of anticoagulants such as heparin, which can result in serious complications such as post-operative bleeding and heparin-induced thrombocytopenia (HIT). Due to these complications, the administration of antithrombotic agents remains one of the leading causes of clinical drug-related deaths. To reduce the side effects spurred by systemic anticoagulation, researchers have been inspired by the hemocompatibility exhibited by natural phenomena, and thus have begun developing medical-grade surfaces which aim to exhibit total hemocompatibility via biomimicry. This review paper aims to address different bio-inspired surface modifications that increase hemocompatibility, discuss the limitations of each method, and explore the future direction for hemocompatible surface research.
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Affiliation(s)
- Megan Douglass
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Mark Garren
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Ryan Devine
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Arnab Mondal
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
| | - Hitesh Handa
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, GA, USA
- Department of Pharmaceutical and Biomedical Sciences, College of Pharmacy, University of Georgia, Athens, GA, USA
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Liu Y, Han Q, Li G, Lin H, Liu F, Li Q, Deng G. Anticoagulation polyvinyl chloride extracorporeal circulation catheters for heparin-free treatment. J Mater Chem B 2022; 10:8302-8314. [PMID: 36165336 DOI: 10.1039/d2tb01584f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Extracorporeal circulation (ECC) catheters have potential to be blood compatible and could be used to prevent thrombotic occlusion. Here, we produced heparin-mimicking anticoagulation PVC tubing on a large scale by synthesizing a heparin-mimicking polymer (HMP) and co-extruding. The PVC@HMP catheter was evaluated using whole human blood in vitro, which indicated it could prevent plasma protein attachment, reduce platelet adhesion and activation, and inhibit coagulation factors (XII, XI, IX, and VIII). Moreover, the anticoagulation PVC tubing was assembled into extracorporeal circulation with a New Zealand rabbit model, manifesting excellent real-time antithrombogenic properties without systemic heparin anticoagulation in vivo. The rapid recovery of coagulation factors after operation further confirmed its superiority over heparin, which would not completely inactivate the activity of those coagulation factors (XII, XI, IX and VIII). In addition, the PVC@HMP-1 catheters remain patent after being implanted in rats for 28 days without apparent inflammation and mortality complications. The anticoagulation PVC tubes could be used to construct various systemic and integrative anticlotting biomedical devices, which would dramatically reduce the introduction of heparin into blood circulation, thus preventing side effects and promoting the development of heparin-free treatment.
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Affiliation(s)
- Yang Liu
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 1219 Zhongguan West Rd, Ningbo 315201, P. R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, P. R. China
| | - Qiu Han
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 1219 Zhongguan West Rd, Ningbo 315201, P. R. China.
| | - Guiliang Li
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 1219 Zhongguan West Rd, Ningbo 315201, P. R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, P. R. China
| | - Haibo Lin
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 1219 Zhongguan West Rd, Ningbo 315201, P. R. China.
| | - Fu Liu
- Key Laboratory of Bio-based Polymeric Materials Technology and Application of Zhejiang Province, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 1219 Zhongguan West Rd, Ningbo 315201, P. R. China. .,University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing 100049, P. R. China
| | - Qiang Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310006, P. R. China
| | - Gang Deng
- The Ningbo Central Blood Station, Ningbo, 315201, P. R. China
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Zięba M, Rusak T, Misztal T, Zięba W, Marcińczyk N, Czarnecka J, Al-Gharabli S, Kujawa J, Terzyk AP. Nitrogen plasma modification boosts up the hemocompatibility of new PVDF-carbon nanohorns composite materials with potential cardiological and circulatory system implants application. BIOMATERIALS ADVANCES 2022; 138:212941. [PMID: 35913257 DOI: 10.1016/j.bioadv.2022.212941] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 05/13/2022] [Accepted: 05/23/2022] [Indexed: 06/15/2023]
Abstract
To design new material for blood-related applications one needs to consider various factors such as cytotoxicity, platelet adhesion, or anti-thrombogenic properties. The aim of this work is the design of new, highly effective materials possessing high blood compatibility. To do this, the new composites based on the poly(vinylidene fluoride) (PVDF) support covered with a single-walled carbon nanohorns (CNHs) layer were prepared. The PVDF-CNHs composites were subsequently used for the first time in the hemocompatibility studies. To raise the hemocompatibility a new, never applied before for CNHs, plasma-surface modifications in air, nitrogen and ammonia were implemented. This relatively cheap, facile and easy method allows generating the new hybrid materials with high effectiveness and significant differences in surface properties (water contact angle, surface ζ-potential, and surface functional groups composition). Changing those properties made it possible to select the most promising samples for blood-related applications. This was done in a fully controlled way by applying Taguchi's "orthogonal array" procedure. It is shown for the first time that nitrogen plasma treatment of new surfaces is the best tool for hemocompatibility rise and leads to very low blood platelet adhesion, no cytotoxicity, and excellent performance in thromboelastometry and hemolysis tests. We propose a possible mechanism explaining this behavior. The optimisation results are coherent with biological characterisation and are supported with Hansen Solubility Parameters. New surfaces can find potential applications in cardiological and circulatory system implants as well as other blood-related biomaterials.
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Affiliation(s)
- Monika Zięba
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Gagarina Street 7, 87-100 Toruń, Poland; Interdisciplinary PhD School "Academia Copernicana", Nicolaus Copernicus University in Toruń, Lwowska Street 1, 87-100 Toruń, Poland
| | - Tomasz Rusak
- Department of Physical Chemistry, Medical University of Bialystok, Adama Mickiewicza 2A, 15-089 Bialystok, Poland
| | - Tomasz Misztal
- Department of Physical Chemistry, Medical University of Bialystok, Adama Mickiewicza 2A, 15-089 Bialystok, Poland
| | - Wojciech Zięba
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Gagarina Street 7, 87-100 Toruń, Poland; Interdisciplinary PhD School "Academia Copernicana", Nicolaus Copernicus University in Toruń, Lwowska Street 1, 87-100 Toruń, Poland
| | - Natalia Marcińczyk
- Department of Biopharmacy, Medical University of Bialystok, Adama Mickiewicza 2C, 15-089 Bialystok, Poland
| | - Joanna Czarnecka
- Department of Biochemistry, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University in Toruń, Lwowska Street 1, 87-100 Toruń, Poland
| | - Samer Al-Gharabli
- Pharmaceutical and Chemical Engineering Department, German Jordanian University, Amman 11180, Jordan
| | - Joanna Kujawa
- Faculty of Chemistry, Department of Physical Chemistry and Physicochemistry of Polymers, Nicolaus Copernicus University in Toruń, Gagarina Street 7, 87-100 Toruń, Poland.
| | - Artur P Terzyk
- Faculty of Chemistry, Physicochemistry of Carbon Materials Research Group, Nicolaus Copernicus University in Toruń, Gagarina Street 7, 87-100 Toruń, Poland.
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Effect of Membrane Surface Area on Solute Removal Performance of Dialyzers with Fouling. MEMBRANES 2022; 12:membranes12070684. [PMID: 35877887 PMCID: PMC9320527 DOI: 10.3390/membranes12070684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/26/2022] [Accepted: 06/28/2022] [Indexed: 11/17/2022]
Abstract
In a clinical situation, since membrane fouling often causes the reduction of solute removal performance of the dialyzer, it is necessary to evaluate the performance of the dialyzer, considering the effects of fouling even in aqueous in vitro experiments that are useful for the better design of dialyzers. We replicated the membrane fouling by immobilizing albumin on the membrane in a dialyzer using glutaraldehyde as a stabilizer. The modules of various membrane surface areas with and without replication of the fouling were used for performance evaluation of solute (creatinine, vitamin B12, and inulin) removal in dialysis experiments in vitro. Clearances for these solutes in the modules with fouling were lower than those without fouling. Furthermore, the smaller the surface area, the larger the fouling effect was observed in all solutes. Calculated pressure distribution in a module by using a mathematical model showed that the solute removal performance might be greatly affected by the rate of internal filtration that enhances the solute removal, especially for larger solutes. The increase in the rate of internal filtration should contribute to improving the solute removal performance of the dialyzer, with a higher effect in modules with a larger membrane surface area.
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Kiguchi T, Tomisawa N, Yamashita AC. Replication of fouling in vitro in hollow fiber dialyzers by albumin immobilization. J Artif Organs 2022; 25:329-335. [PMID: 35146587 DOI: 10.1007/s10047-022-01318-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 01/30/2022] [Indexed: 11/27/2022]
Abstract
For designing and evaluating the dialyzer and investigating the optimal therapeutic conditions, in vitro studies bring us many useful findings. In hemodialysis, however, the membrane fouling due to protein molecules reduces solute removal performance. Therefore, we investigated a method for replicating the fouling in dialyzers in aqueous experiments. After the albumin solution was circulated in the test circuit with a dialyzer, a glutaraldehyde solution was pumped into the dialyzer to immobilize albumin on the hollow fiber membrane. Under various immobilization conditions, the permeability of creatinine and vitamin B12 was evaluated by dialysis experiments. The creatinine clearance after immobilization of albumin was decreased, suggesting pore plugging by our fouling replication method. The glutaraldehyde crosslinked albumin molecules that adhered them to the membrane firmly. Moreover, the degree of fouling may be controlled by changing the concentration of albumin solution and the volume of glutaraldehyde solution used for immobilization. Our fouling replication method was applied to three types of polyester polymer alloy (PEPA) dialyzers and one polysulfone (PSf) dialyzer. This method enables to evaluate the permeability of various dialyzers with fouling in vitro that will be of great help in collecting data for designing dialyzers.
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Affiliation(s)
- Takayoshi Kiguchi
- Department of Chemical Science and Technology, Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2, Kajino-cho, Koganei, Tokyo, 184-8584, Japan
| | - Narumi Tomisawa
- Department of Chemical Science and Technology, Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2, Kajino-cho, Koganei, Tokyo, 184-8584, Japan
- Nikkiso Co., Ltd, Yebisu Garden Place Tower 22nd Floor, 20-3, Ebisu 4-Chome, Shibuya-ku, Tokyo, 150-6022, Japan
| | - Akihiro C Yamashita
- Department of Chemical Science and Technology, Faculty of Bioscience and Applied Chemistry, Hosei University, 3-7-2, Kajino-cho, Koganei, Tokyo, 184-8584, Japan.
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Said N, Lau WJ, Ho YC, Lim SK, Zainol Abidin MN, Ismail AF. A Review of Commercial Developments and Recent Laboratory Research of Dialyzers and Membranes for Hemodialysis Application. MEMBRANES 2021; 11:767. [PMID: 34677533 PMCID: PMC8540739 DOI: 10.3390/membranes11100767] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022]
Abstract
Dialyzers have been commercially used for hemodialysis application since the 1950s, but progress in improving their efficiencies has never stopped over the decades. This article aims to provide an up-to-date review on the commercial developments and recent laboratory research of dialyzers for hemodialysis application and to discuss the technical aspects of dialyzer development, including hollow fiber membrane materials, dialyzer design, sterilization processes and flow simulation. The technical challenges of dialyzers are also highlighted in this review, which discusses the research areas that need to be prioritized to further improve the properties of dialyzers, such as flux, biocompatibility, flow distribution and urea clearance rate. We hope this review article can provide insights to researchers in developing/designing an ideal dialyzer that can bring the best hemodialysis treatment outcomes to kidney disease patients.
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Affiliation(s)
- Noresah Said
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia; (N.S.); (M.N.Z.A.); (A.F.I.)
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia; (N.S.); (M.N.Z.A.); (A.F.I.)
| | - Yeek-Chia Ho
- Centre of Urban Resource Sustainability, Department of Civil and Environmental Engineering, Institute of Self-Sustainable Building, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia;
| | - Soo Kun Lim
- University Malaya Primary Care Research Group (UMPCRG), Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur 50603, Malaysia;
| | - Muhammad Nidzhom Zainol Abidin
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia; (N.S.); (M.N.Z.A.); (A.F.I.)
| | - Ahmad Fauzi Ismail
- Advanced Membrane Technology Research Centre (AMTEC), School of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia; (N.S.); (M.N.Z.A.); (A.F.I.)
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Xie YX, Wang KK, Yu WH, Cui MB, Shen YJ, Wang XY, Fang LF, Zhu BK. Improved permeability and antifouling properties of polyvinyl chloride ultrafiltration membrane via blending sulfonated polysulfone. J Colloid Interface Sci 2020; 579:562-572. [DOI: 10.1016/j.jcis.2020.06.097] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/13/2020] [Accepted: 06/23/2020] [Indexed: 01/24/2023]
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Pérez-Álvarez L, Ruiz-Rubio L, Moreno I, Vilas-Vilela JL. Characterization and Optimization of the Alkaline Hydrolysis of Polyacrylonitrile Membranes. Polymers (Basel) 2019; 11:polym11111843. [PMID: 31717371 PMCID: PMC6918364 DOI: 10.3390/polym11111843] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Revised: 11/04/2019] [Accepted: 11/05/2019] [Indexed: 11/16/2022] Open
Abstract
There is currently an increasing interest in the development of polyacrylonitrile (PAN)-based membranes with new and enhanced properties which are of special importance in the processes of pervaporation, purification, and water treatment. Thus, the optimization of the functionalization of PAN membranes and its effect on their morphology, hydrophilicity, and mechanical properties plays an essential role in a wide range of applications. In this paper, the alkaline hydrolysis of asymmetric PAN membranes was investigated in order to get carboxyl-enriched surfaces that are of a great interest for more demanding subsequent modifications. The process was monitored using –C=NH intermediate bonds, which could be observed during the hydrolysis reaction by X-Ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) before the formation of carboxyl and amide groups. The amount of introduced carboxylic acid groups could be determined by thermogravimetric analysis (TGA) and by the interaction with toluidine blue O (TBO) dye. Hydrolysis was revealed as a simple way to modulate hydrophilicity (decreasing contact angle from 60 to 0° for reaction times from 0–3 h) and the mechanical properties of PAN membranes.
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Affiliation(s)
- Leyre Pérez-Álvarez
- Departamento de Química Física (Laboratorio de Química Macromolecular), Universidad del País Vasco (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain;
- BCMaterials, Bizkaia Science and Technology Park, Building 500-1st Floor, 48160 Derio, Spain
- Correspondence: (L.P.-Á.); (L.R.-R.)
| | - Leire Ruiz-Rubio
- Departamento de Química Física (Laboratorio de Química Macromolecular), Universidad del País Vasco (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain;
- BCMaterials, Bizkaia Science and Technology Park, Building 500-1st Floor, 48160 Derio, Spain
- Correspondence: (L.P.-Á.); (L.R.-R.)
| | - Isabel Moreno
- Macromolecular Chemistry Group (LQM), Organic Chemistry II Department, Faculty of Science and Technology, University of the Basque Country, 48940 Leioa, Spain;
| | - José Luis Vilas-Vilela
- Departamento de Química Física (Laboratorio de Química Macromolecular), Universidad del País Vasco (UPV/EHU), B Sarriena s/n, 48940 Leioa, Spain;
- BCMaterials, Bizkaia Science and Technology Park, Building 500-1st Floor, 48160 Derio, Spain
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Poorkhalil A, Mouzakis F, Kashefi A, Mottaghy K. The course of hematocrit value along the length of a dialyzer's fiber: Hemoconcentration modeling and validation methods. Int J Artif Organs 2019; 42:482-489. [PMID: 31122110 DOI: 10.1177/0391398819847214] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Contemporary therapies for chronic kidney disease patients encompass a wide range of hemodialysis treatments, most of which rely greatly on dialyzers and hemofilters. The filtration process taking place in these devices with respect to the hemodynamic characteristics of the flow, has not yet been fully investigated. This study aims at improving the understanding of hemodynamics in a dialyzer by employing experimental methods and mathematical models. METHODS A semiempirical model has been formulated based on the principles of hemodynamics, considering the dominant phenomena of filtration-backfiltration and the corresponding driving forces. An in vitro hemodialysis circuit was accordingly assembled for experimental data acquisition, and subsequently for model validation. The circuit consisted of two dialyzers arranged in sequential order, in pursuance of increasing the number of sampling points. Fresh, heparinized porcine blood was used throughout the course of this study. Pressure and flow data obtained from in vitro investigations with the hemodialysis circuit were used as an input for the semiempirical model. FINDINGS The model predicted a substantial divergence in the course of hematocrit value along the length of the hollow fibers, which is corroborated by the experimental data. Particularly in certain operational conditions, hematocrit rose from 25% at the inlet to 65% halfway along the dialyzers' length, to end at 30% at the outlet. CONCLUSION Validation of the model's predictions with experimental data demonstrated a very good agreement, confirming the model's accuracy. Potential implementation of the model in clinical practice in the future might contribute greatly to an improved hemodialysis experience.
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Affiliation(s)
- Ali Poorkhalil
- 1 Institute of Physiology, RWTH Aachen University, Aachen, Germany.,2 Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Foivos Mouzakis
- 1 Institute of Physiology, RWTH Aachen University, Aachen, Germany
| | - Ali Kashefi
- 1 Institute of Physiology, RWTH Aachen University, Aachen, Germany
| | - Khosrow Mottaghy
- 1 Institute of Physiology, RWTH Aachen University, Aachen, Germany
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12
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Huang LY, Yang MC, Tsou HM, Liu TY. Hemocompatibility and anti-fouling behavior of multilayer biopolymers immobilized on gold-thiolized drug-eluting cardiovascular stents. Colloids Surf B Biointerfaces 2018; 173:470-477. [PMID: 30326363 DOI: 10.1016/j.colsurfb.2018.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 09/10/2018] [Accepted: 10/06/2018] [Indexed: 10/28/2022]
Abstract
To solve the thrombosis and restenosis problem in cardiovascular stent implantation for cardiovascular artery disease, chondroitin 6-sulfate (ChS) with heparin (HEP) have been used as drug carrier layers and alternatively covalently bonded on gold (Au)-dimercaptosuccinic acid (DMSA)-thiolized cardiovascular metallic (SUS316 L stainless steel, SS) stents. Sirolimus, a model drug, was encapsulated in the ChS-HEP alternative layers. The behavior of the drug in releasing and suppressing the growth of smooth-muscle cells (SMCs) was evaluated with 5-layer CHS-HEP coating on the SS stents. Moreover, hemocompatibility of blood clotting time and platelet adhesion was performed. The results showed that the 5-layer ChS-HEP-modified SS stents displayed the greatest hemocompatibility, showing prolonged blood clotting time of the activated partial thrombin time (> 500 s) and less platelet adhesion to reduce thrombosis. Furthermore, sirolimus can be released continuously for more than 40 days with the 5-layer ChS-HEP coating and is beneficial for inhibiting the growth of SMCs; however, it does not affect the proliferation of endothelial cells, which can avoid restenosis formation. Therefore, the multilayers of ChS-HEP grafted onto the Au-DMSA-cardiovascular SS stents provide high potential for use as drug eluting stents.
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Affiliation(s)
- Li-Ying Huang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan
| | - Ming-Chien Yang
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei, 10607, Taiwan.
| | - Hui-Ming Tsou
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan
| | - Ting-Yu Liu
- Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, 24301, Taiwan.
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13
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Modi A, Verma SK, Bellare J. Hydrophilic ZIF-8 decorated GO nanosheets improve biocompatibility and separation performance of polyethersulfone hollow fiber membranes: A potential membrane material for bioartificial liver application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:524-540. [DOI: 10.1016/j.msec.2018.05.051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 04/15/2018] [Accepted: 05/15/2018] [Indexed: 12/14/2022]
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14
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Verma SK, Modi A, Singh AK, Teotia R, Kadam S, Bellare J. Functionally coated polyethersulfone hollow fiber membranes: A substrate for enhanced HepG2/C3A functions. Colloids Surf B Biointerfaces 2018; 164:358-369. [DOI: 10.1016/j.colsurfb.2018.01.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 12/11/2017] [Accepted: 01/20/2018] [Indexed: 01/04/2023]
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15
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Graphene oxide-doping improves the biocompatibility and separation performance of polyethersulfone hollow fiber membranes for bioartificial kidney application. J Colloid Interface Sci 2018; 514:750-759. [DOI: 10.1016/j.jcis.2017.12.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 12/07/2017] [Accepted: 12/17/2017] [Indexed: 01/22/2023]
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16
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Wang SY, Fang LF, Cheng L, Jeon S, Kato N, Matsuyama H. Novel ultrafiltration membranes with excellent antifouling properties and chlorine resistance using a poly(vinyl chloride)-based copolymer. J Memb Sci 2018. [DOI: 10.1016/j.memsci.2017.11.074] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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17
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Reis EMD, Berti FV, Colla G, Porto LM. Bacterial nanocellulose-IKVAV hydrogel matrix modulates melanoma tumor cell adhesion and proliferation and induces vasculogenic mimicryin vitro. J Biomed Mater Res B Appl Biomater 2017; 106:2741-2749. [DOI: 10.1002/jbm.b.34055] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/10/2017] [Accepted: 11/18/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Emily M. dos Reis
- InteLab - Integrated Technologies Laboratory, Chemical and Food Engineering Department; Federal University of Santa Catarina; Florianópolis SC Brazil
| | - Fernanda V. Berti
- InteLab - Integrated Technologies Laboratory, Chemical and Food Engineering Department; Federal University of Santa Catarina; Florianópolis SC Brazil
| | - Guilherme Colla
- InteLab - Integrated Technologies Laboratory, Chemical and Food Engineering Department; Federal University of Santa Catarina; Florianópolis SC Brazil
| | - Luismar M. Porto
- InteLab - Integrated Technologies Laboratory, Chemical and Food Engineering Department; Federal University of Santa Catarina; Florianópolis SC Brazil
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18
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Development of biocompatible and safe polyethersulfone hemodialysis membrane incorporated with functionalized multi-walled carbon nanotubes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:572-582. [DOI: 10.1016/j.msec.2017.03.273] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/28/2017] [Indexed: 12/25/2022]
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19
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Verma SK, Modi A, Singh AK, Teotia R, Bellare J. Improved hemodialysis with hemocompatible polyethersulfone hollow fiber membranes:
In vitro
performance. J Biomed Mater Res B Appl Biomater 2017. [DOI: 10.1002/jbm.b.33941] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Surendra Kumar Verma
- Department of Chemical EngineeringIndian Institute of Technology BombayMumbai400076 India
| | - Akshay Modi
- Department of Chemical EngineeringIndian Institute of Technology BombayMumbai400076 India
| | - Atul Kumar Singh
- Centre for Research in Nanotechnology and Science, Indian Institute of Technology BombayMumbai400076 India
| | - Rohit Teotia
- Department of Biosciences and BioengineeringIndian Institute of Technology BombayMumbai400076 India
| | - Jayesh Bellare
- Department of Chemical EngineeringIndian Institute of Technology BombayMumbai400076 India
- Centre for Research in Nanotechnology and Science, Indian Institute of Technology BombayMumbai400076 India
- Department of Biosciences and BioengineeringIndian Institute of Technology BombayMumbai400076 India
- Wadhwani Research Center for BioengineeringIndian Institute of Technology BombayMumbai400076 India
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20
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Wu F, Xu T, Zhao G, Meng S, Wan M, Chi B, Mao C, Shen J. Mesoporous Silica Nanoparticles-Encapsulated Agarose and Heparin as Anticoagulant and Resisting Bacterial Adhesion Coating for Biomedical Silicone. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5245-5252. [PMID: 28498661 DOI: 10.1021/acs.langmuir.7b00567] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Silicone catheter has been widely used in peritoneal dialysis. The research missions of improving blood compatibility and the ability of resisting bacterial adhesion of silicone catheter have been implemented for the biomedical requirements. However, most of modification methods of surface modification were only able to develop the blood-contacting biomaterials with good hemocompatibility. It is difficult for the biomaterials to resist bacterial adhesion. Here, agarose was selected to resist bacterial adhesion, and heparin was chosen to improve hemocompatibility of materials. Both of them were loaded into mesoporous silica nanoparticles (MSNs), which were successfully modified on the silicone film surface via electrostatic interaction. Structures of the mesoporous coatings were characterized in detail by dynamic light scattering, transmission electron microscopy, Brunauer-Emmett-Teller surface area, thermogravimetric analysis, Fourier transform infrared spectroscopy, scanning electron microscope, and water contact angle. Platelet adhesion and aggregation, whole blood contact test, hemolysis and related morphology test of red blood cells, in vitro clotting time tests, and bacterial adhesion assay were performed to evaluate the anticoagulant effect and the ability of resisting bacterial adhesion of the modified silicone films. Results indicated that silicone films modified by MSNs had a good anticoagulant effect and could resist bacterial adhesion. The modified silicone films have potential as blood-contacting biomaterials that were attributed to their biomedical properties.
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Affiliation(s)
- Fan Wu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
| | - Tingting Xu
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University , Nanjing 211816, China
| | - Guangyao Zhao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
| | - Shuangshuang Meng
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
| | - Mimi Wan
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
| | - Bo Chi
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University , Nanjing 211816, China
| | - Chun Mao
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
| | - Jian Shen
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University , Nanjing 210023, China
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21
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Xie B, Zhang R, Zhang H, Xu A, Deng Y, Lv Y, Deng F, Wei S. Decoration of heparin and bovine serum albumin on polysulfone membrane assisted via polydopamine strategy for hemodialysis. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:880-97. [PMID: 27018964 DOI: 10.1080/09205063.2016.1169479] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Renal failure brings about abnormality of waste and toxins and deposition in the body. In clinic, the waste and toxins in vitro are eliminated by hemodialysis device with polysulfone (PSF) porous membranes. In the work, decoration of heparin (Hep) and bovine serum albumin (BSA) on PSF membranes would be beneficial to improve the hemocompatibility and reduce the anaphylatoxin formation during hemodialysis. The PSF porous membranes are surface-modified by simply dipping them into dopamine aqueous solution for 8 h. Then, Hep and BSA are immobilized covalently onto the resultant membrane. Attenuated total reflectance Fourier transform infrared spectra (ATR-FTIR) confirms that Hep and BSA are successfully introduced onto the surface of PSF membranes. Scanning electronic microscopy (SEM) and atomic force microscopy (AFM) display the changes of surface morphologies after modification. The result of water contact angle measurement shows that the hydrophilicity of PSF membranes is remarkably improved after coating polydopamine (pDA) and binding Hep and BSA. The experiments of hemocompatibility indicate that Hep and BSA grafted onto membranes suppress the adhesion of platelet and enhance the anticoagulation ability of PSF membranes. Furthermore, the protein adsorption tests reveal that Hep and BSA immobilized onto membranes depress the protein absorption and develop antifouling-protein ability of pristine membrane. This study proves a convenient and simple approach to graft two functional organic polymers which, respectively, play a vital role and then improve the hemocompatibility and biocompatibility of PSF membranes for their biomedical and blood-contacting applications.
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Affiliation(s)
- Bingwu Xie
- a Department of Orthodontics, College of Stomatology , Chongqing Medical University , Chongqing , China.,b Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences , Chongqing Medical University , Chongqing , China
| | - Ranran Zhang
- c Department of Stomatology, Beijing Anzhen Hospital , Capital Medical University , Beijing , China
| | - Huan Zhang
- d Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies , Peking University , Beijing , China
| | - Anxiu Xu
- a Department of Orthodontics, College of Stomatology , Chongqing Medical University , Chongqing , China.,b Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences , Chongqing Medical University , Chongqing , China
| | - Yi Deng
- d Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies , Peking University , Beijing , China
| | - Yalin Lv
- c Department of Stomatology, Beijing Anzhen Hospital , Capital Medical University , Beijing , China
| | - Feng Deng
- a Department of Orthodontics, College of Stomatology , Chongqing Medical University , Chongqing , China.,b Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences , Chongqing Medical University , Chongqing , China
| | - Shicheng Wei
- b Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences , Chongqing Medical University , Chongqing , China.,d Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies , Peking University , Beijing , China.,e Laboratory of Interdisciplinary Studies, Department of Oral and Maxillofacial Surgery , Peking University School and Hospital of Stomatology , Beijing , China
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22
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Sun J, Fu T, Sun J, Wu F, Liu Y. Polydopamine-assisted immobilization of arginine molecules to improve hemocompatibility. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jiamao Sun
- Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Tao Fu
- Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Jianmin Sun
- Key Laboratory of Biomedical Information Engineering of Ministry of Education; School of Life Science and Technology, Xi'an Jiaotong University; Xi'an 710049 China
| | - Feng Wu
- College of Medicine; Xi'an Jiaotong University; Xi'an 710061 China
| | - Yun Liu
- Department of Chemistry, School of Science; Xi'an Jiaotong University; Xi'an 710049 China
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23
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Improvement of the surface wettability of silicone hydrogel contact lenses via layer-by-layer self-assembly technique. Colloids Surf B Biointerfaces 2015; 136:735-43. [DOI: 10.1016/j.colsurfb.2015.10.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/27/2015] [Accepted: 10/05/2015] [Indexed: 11/23/2022]
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24
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Kaleekkal NJ, Thanigaivelan A, Durga M, Girish R, Rana D, Soundararajan P, Mohan D. Graphene Oxide Nanocomposite Incorporated Poly(ether imide) Mixed Matrix Membranes for in Vitro Evaluation of Its Efficacy in Blood Purification Applications. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b01655] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Noel Jacob Kaleekkal
- Membrane
Laboratory, Department of Chemical Engineering, Alagappa College of
Technology, Anna University, Chennai 600025, India
| | - A. Thanigaivelan
- Membrane
Laboratory, Department of Chemical Engineering, Alagappa College of
Technology, Anna University, Chennai 600025, India
| | - M. Durga
- Membrane
Laboratory, Department of Chemical Engineering, Alagappa College of
Technology, Anna University, Chennai 600025, India
| | - R. Girish
- Department
of Nephrology, Sri Ramachandra University, Porur, Chennai 600116, India
| | - Dipak Rana
- Department
of Chemical and Biological Engineering, University of Ottawa, 161 Louis Pasteur Private, Ottawa, Ontario K1N 6N5, Canada
| | - P. Soundararajan
- Department
of Nephrology, Sri Ramachandra University, Porur, Chennai 600116, India
| | - D. Mohan
- Membrane
Laboratory, Department of Chemical Engineering, Alagappa College of
Technology, Anna University, Chennai 600025, India
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25
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Leszczak V, Popat KC. Improved in vitro blood compatibility of polycaprolactone nanowire surfaces. ACS APPLIED MATERIALS & INTERFACES 2014; 6:15913-24. [PMID: 25184556 PMCID: PMC4173746 DOI: 10.1021/am503508r] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Accepted: 09/03/2014] [Indexed: 05/27/2023]
Abstract
There are a multitude of polymeric materials currently utilized to prepare a variety of blood-contacting implantable medical devices. These devices include tissue grafts, coronary artery and vascular stents, and orthopedic implants. The thrombogenic nature of such materials can cause serious complications in patients, and ultimately lead to functional failure. To date, there is no truly hemocompatible biomaterial surface. Nanostructured surfaces improve cellular interactions but there is a limited amount of information regarding their blood compatibility. In this study, the in vitro blood compatibility of four different surfaces (control, PCL; nanowire, NW; collagen immobilized control, cPCL; collagen immobilized nanowire, cNW) were investigated for their use as interfaces for blood-contacting implants. The results presented here indicate enhanced in vitro blood compatibility of nanowire surfaces compared control surfaces. Although there were no significant differences in leukocyte adhesion, there was a decrease in platelet adhesion on NW surfaces. Scanning electron microscopy images showed a decrease in platelet/leukocyte complexes on cNW surfaces and no apparent complexes were formed on NW surfaces compared to PCL and cPCL surfaces. The increase in these complexes likely contributed to a higher expression of specific markers for platelet and leukocyte activation on PCL and cPCL surfaces. No significant differences were found in contact and complement activation on any surface. Further, thrombin antithrombin complexes were significantly reduced on NW surfaces. A significant increase in hemolysis and fibrinogen adsorption was identified on PCL surfaces likely caused by its hydrophobic surface. This work shows the improved blood-compatibility of nanostructured surfaces, identifying this specific nanoarchitecture as a potential interface for promoting the long-term success of blood-contacting biomaterials.
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Affiliation(s)
- Victoria Leszczak
- Department
of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort
Collins, Colorado 80523, United States
| | - Ketul C. Popat
- Department
of Mechanical Engineering, School of Biomedical Engineering, Colorado State University, Fort
Collins, Colorado 80523, United States
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26
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Chang T, DeFine L, Alexander T, Kyu T. In vitro investigation of antioxidant, anti-Inflammatory, and antiplatelet adhesion properties of genistein-modified poly(ethersulfone)/poly(vinylpyrrolidone) hemodialysis membranes. J Biomed Mater Res B Appl Biomater 2014; 103:539-47. [PMID: 24934473 DOI: 10.1002/jbm.b.33215] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 05/06/2014] [Accepted: 05/22/2014] [Indexed: 11/07/2022]
Abstract
Hemocompatibility of genistein-modified poly(ethersulfone)/poly(vinylpyrrolidone) (PES/PVP) hemodialysis (HD) membranes has been investigated in vitro with emphasis on evaluation of cell viability, antioxidant, anti-inflammatory, and antiplatelet adhesion properties. Genistein modified PES/PVP membranes reveal significant reduction of the reactive oxygen species and also considerable suppression of interleukin-1β and tumor necrosis factor-α levels in whole blood, but to a lesser extent ininterleukin-6. The incorporation of PVP into the HD membrane reduces platelet adhesion by virtue of its hydrophilicity. Of particular importance is that platelet adhesion of the genistein modified membranes declines noticeably at low concentrations of genistein for about 5-10%, beyond which it raises the number of adhered platelets. The initial decline in the platelet adhesion is attributable to genistein's ability to inhibit intercellular and/or vascular cell adhesion, whereas the reversal of this adhesion trend with further increase of genistein loading is ascribed to the inherent hydrophobicity of the genistein modified HD membrane.
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Affiliation(s)
- Teng Chang
- Department of Polymer Engineering, University of Akron, Akron, Ohio, 44325
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27
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Thankam FG, Muthu J. Influence of physical and mechanical properties of amphiphilic biosynthetic hydrogels on long-term cell viability. J Mech Behav Biomed Mater 2014; 35:111-22. [PMID: 24762858 DOI: 10.1016/j.jmbbm.2014.03.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 03/09/2014] [Indexed: 12/23/2022]
Abstract
Maintaining the mechanical properties of biofunctional hydrogels of natural resources for tissue engineering and biomedical applications for an intended period of duration is a challenge. Though anionic polysaccharide alginate has been hailed for its excellent biomimetic characters for tissue engineering, it usually fails in load bearing and other dynamic mechanical environment. In this paper this issue was addressed by copolymerizing alginate with the biocompatible and mechanically robust synthetic biodegradable polyester and crosslinking with polyethylene glycol diacrylate (PEGDA) and vinyl co-monomers, 2-hydroxy ethyl methacrylate (HEMA), methyl methacrylate (MMA) and N N׳ methylene bis acrylamide (NMBA) to form three hydrogels. All three hydrogels were amphiphilic, hemocompatible and non-cytotoxic. These hydrogels exhibited appreciable water holding capacity. Comparatively, hydrogel prepared with PEGDA-NMBA crosslinkers displayed larger pore size, increased crosslinking, higher tensile strength and controlled degradation. With appreciable swelling and EWC, this hydrogel elicited better biological responses with long-term cell viability for cardiac tissue engineering.
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Affiliation(s)
- Finosh Gnanaprakasam Thankam
- Sree Chitra Tirunal Institute for Medical Sciences and Technology, Polymer Science Division, BMT Wing, Thiruvananthapuram 695012, Kerala State, India
| | - Jayabalan Muthu
- Sree Chitra Tirunal Institute for Medical Sciences and Technology, Polymer Science Division, BMT Wing, Thiruvananthapuram 695012, Kerala State, India.
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28
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Zhang C, Jin J, Zhao J, Jiang W, Yin J. Functionalized polypropylene non-woven fabric membrane with bovine serum albumin and its hemocompatibility enhancement. Colloids Surf B Biointerfaces 2013; 102:45-52. [DOI: 10.1016/j.colsurfb.2012.08.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 08/06/2012] [Accepted: 08/06/2012] [Indexed: 10/28/2022]
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29
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Tijink M, Janssen J, Timmer M, Austen J, Aldenhoff Y, Kooman J, Koole L, Damoiseaux J, van Oerle R, Henskens Y, Stamatialis D. Development of novel membranes for blood purification therapies based on copolymers of N-vinylpyrrolidone and n-butylmethacrylate. J Mater Chem B 2013; 1:6066-6077. [DOI: 10.1039/c3tb20964d] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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30
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Effects of quaternization and PEGylation on the biocompatibility, enzymatic degradability and antioxidant activity of chitosan derivatives. Carbohydr Polym 2012. [DOI: 10.1016/j.carbpol.2011.11.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Arazawa DT, Oh HI, Ye SH, Johnson CA, Woolley JR, Wagner WR, Federspiel WJ. Immobilized Carbonic Anhydrase on Hollow Fiber Membranes Accelerates CO(2) Removal from Blood. J Memb Sci 2012; 404-404:25-31. [PMID: 22962517 DOI: 10.1016/j.memsci.2012.02.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Current artificial lungs and respiratory assist devices designed for carbon dioxide removal (CO(2)R) are limited in their efficiency due to the relatively small partial pressure difference across gas exchange membranes. To offset this underlying diffusional challenge, bioactive hollow fiber membranes (HFMs) increase the carbon dioxide diffusional gradient through the immobilized enzyme carbonic anhydrase (CA), which converts bicarbonate to CO(2) directly at the HFM surface. In this study, we tested the impact of CA-immobilization on HFM CO(2) removal efficiency and thromboresistance in blood. Fiber surface modification with radio frequency glow discharge (RFGD) introduced hydroxyl groups, which were activated by 1M CNBr while 1.5M TEA was added drop wise over the activation time course, then incubation with a CA solution covalently linked the enzyme to the surface. The bioactive HFMs were then potted in a model gas exchange device (0.0084 m(2)) and tested in a recirculation loop with a CO(2) inlet of 50mmHg under steady blood flow. Using an esterase activity assay, CNBr chemistry with TEA resulted in 0.99U of enzyme activity, a 3.3 fold increase in immobilized CA activity compared to our previous method. These bioactive HFMs demonstrated 108 ml/min/m(2) CO(2) removal rate, marking a 36% increase compared to unmodified HFMs (p < 0.001). Thromboresistance of CA-modified HFMs was assessed in terms of adherent platelets on surfaces by using lactate dehydrogenase (LDH) assay as well as scanning electron microscopy (SEM) analysis. Results indicated HFMs with CA modification had 95% less platelet deposition compared to unmodified HFM (p < 0.01). Overall these findings revealed increased CO(2) removal can be realized through bioactive HFMs, enabling a next generation of more efficient CO(2) removal intravascular and paracorporeal respiratory assist devices.
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Affiliation(s)
- David T Arazawa
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, PA 15219 USA
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32
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Detection of HCG-antigen based on enhanced photoluminescence of hierarchical ZnO arrays. Colloids Surf B Biointerfaces 2012; 89:86-92. [DOI: 10.1016/j.colsurfb.2011.08.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 07/16/2011] [Accepted: 08/30/2011] [Indexed: 11/23/2022]
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33
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Babu V, Choudhury B. Competitive adsorptions of nitrile hydratase and amidase on polyacrylonitrile and its effect on surface modification. Colloids Surf B Biointerfaces 2012; 89:277-82. [DOI: 10.1016/j.colsurfb.2011.08.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2011] [Accepted: 08/26/2011] [Indexed: 10/17/2022]
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34
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Jao WC, Yang MC, Lin CH, Hsu CC. Fabrication and characterization of electrospun silk fibroin/TiO2 nanofibrous mats for wound dressings. POLYM ADVAN TECHNOL 2011. [DOI: 10.1002/pat.2014] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Win-Chun Jao
- Department of Biological Science and Technology; China University of Science and Technology; Taipei; 11581; Taiwan
| | - Ming-Chien Yang
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei; 10607; Taiwan
| | - Chien-Hong Lin
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei; 10607; Taiwan
| | - Chi-Chuan Hsu
- Department of Materials Science and Engineering; National Taiwan University of Science and Technology; Taipei; 10607; Taiwan
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35
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Yurekli Y, Alsoy Altinkaya S. Catalytic performances of chemically immobilized urease under static and dynamic conditions: A comparative study. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.03.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Victor SP, Sharma CP. Development and evaluation of cyclodextrin complexed hydroxyapatite nanoparticles for preferential albumin adsorption. Colloids Surf B Biointerfaces 2011; 85:221-8. [PMID: 21458963 DOI: 10.1016/j.colsurfb.2011.02.032] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 02/23/2011] [Accepted: 02/23/2011] [Indexed: 11/17/2022]
Abstract
Our study focuses on the incorporation of β-CD into the HA structure, its effects on the phase of HA and the biological responses to proteins and blood cells. Hydroxyapatite (HA) containing levels of β-cyclodextrin (β-CD) of upto 0.9 wt% has been produced by co-precipitation method. The complexes were analyzed by X-ray diffraction (XRD), transmission electron microscopy (TEM), Fourier transform infrared (FT-IR) spectroscopy, thermal gravimetric analysis (TG) and differential scanning analysis (DSC) methods. The size of the complexes as analyzed using DLS (dynamic light scattering) was between 150 nm and 350 nm. The results show that an increase in concentration of β-CD in the prepared samples that leads to an increase in hydrophobicity seems to promote an affinity for albumin adsorption. The PAGE results were substantiated by Lowry measurements and the results reveal that the H2 (containing 0.7 wt% β-CD) sample shows around 40% increase in albumin adsorption when compared to the H1 (containing 0.5 wt% β-CD) sample. The preferential adsorption of albumin has not been demonstrated in vivo. The ability to design particles that can preferentially interact with particular protein can obtain desired targeting effects. So the results indicate that HA/β-CD complexes have immense potential in targeted delivery of drugs. The in vivo potential of the developed samples was further confirmed in vitro by the results of cell aggregation and haemolytic activity.
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Affiliation(s)
- Sunita Prem Victor
- Division of Biosurface technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Science and Technology, Poojappura, Thiruvananthapuram 695012, Kerala, India
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37
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Oh HI, Ye SH, Johnson CA, Woolley JR, Federspiel WJ, Wagner WR. Hemocompatibility assessment of carbonic anhydrase modified hollow fiber membranes for artificial lungs. Artif Organs 2010; 34:439-42. [PMID: 20633159 DOI: 10.1111/j.1525-1594.2009.00882.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Hollow fiber membrane (HFM)-based artificial lungs can require a large blood-contacting membrane surface area to provide adequate gas exchange. However, such a large surface area presents significant challenges to hemocompatibility. One method to improve carbon dioxide (CO(2)) transfer efficiency might be to immobilize carbonic anhydrase (CA) onto the surface of conventional HFMs. By catalyzing the dehydration of bicarbonate in blood, CA has been shown to facilitate diffusion of CO(2) toward the fiber membranes. This study evaluated the impact of surface modifying a commercially available microporous HFM-based artificial lung on fiber blood biocompatibility. A commercial poly(propylene) Celgard HFM surface was coated with a siloxane, grafted with amine groups, and then attached with CA which has been shown to facilitate diffusion of CO(2) toward the fiber membranes. Results following acute ovine blood contact indicated no significant reduction in platelet deposition or activation with the siloxane coating or the siloxane coating with grafted amines relative to base HFMs. However, HFMs with attached CA showed a significant reduction in both platelet deposition and activation compared with all other fiber types. These findings, along with the improved CO(2) transfer observed in CA modified fibers, suggest that its incorporation into HFM design may potentiate the design of a smaller, more biocompatible HFM-based artificial lung.
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Affiliation(s)
- Heung-Il Oh
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 100 Technology Drive, Pittsburgh, PA 15219, USA
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38
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Ozeki K, Nagashima I, Hirakuri KK, Masuzawa T. Adsorptive properties of albumin, fibrinogen, and gamma-globulin on fluorinated diamond-like carbon films coated on PTFE. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2010; 21:1641-1648. [PMID: 20101441 DOI: 10.1007/s10856-010-3994-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Accepted: 01/08/2010] [Indexed: 05/28/2023]
Abstract
Fluorinated diamond-like carbon (F-DLC) films were deposited on polytetrafluoroethylene (PTFE) using radio frequency (RF) plasma-enhanced chemical vapor deposition (CVD) by changing the ratio of tetrafluoromethane (CF(4)) and methane (CH(4)). To enhance the adhesion strength of the F-DLC film to the PTFE substrate, the PTFE surface was modified with a N(2) plasma pre-treatment. XPS analysis of the films showed that the C-C bond decreased with increases in the CF(4) ratio, whereas the C-F bond increased with the CF(4) ratio. The F/C ratio of the film also increased with the CF(4) ratio. The pull-out test showed that the adhesion strengths of the films (CF(4)-0-60%) were improved with the plasma pre-treatment. In the film without the plasma pre-treatment, adhesion strength increased with the CF(4) ratio. In contrast, in the case with the plasma pre-treatment, the adhesion strength of the F-DLC film decreased with the increased CF(4) ratio. Regarding the adsorption of albumin, fibrinogen, and gamma-globulin, the amount of adsorbed albumin on the film decreased with an increasing CF(4) ratio, and the amount of adsorbed fibrinogen and gamma-globulin increased with the CF(4) ratio. The CF(4)-0% DLC film showed the most adsorbed albumin and the least adsorbed fibrinogen and gamma-globulin. This indicates that the CF(4)-0% DLC film has higher anti-thrombogenicity than the F-DLC film.
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Affiliation(s)
- K Ozeki
- Department of Mechanical Engineering, Ibaraki University, 4-12-1, Nakanarusawa, Hitachi, Ibaraki, 316-8511, Japan.
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39
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Saljoughi E, Amirilargani M, Mohammadi T. Asymmetric cellulose acetate dialysis membranes: Synthesis, characterization, and performance. J Appl Polym Sci 2010. [DOI: 10.1002/app.31645] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Chang JJ, Lin PJ, Yang MC, Chien CT. Removal of lipopolysaccharide and reactive oxygen species using sialic acid immobilized polysulfone dialyzer. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1309] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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41
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Mahlicli FY, Altinkaya SA. The effects of urease immobilization on the transport characteristics and protein adsorption capacity of cellulose acetate based hemodialysis membranes. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2009; 20:2167-2179. [PMID: 19468833 DOI: 10.1007/s10856-009-3776-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Accepted: 05/05/2009] [Indexed: 05/27/2023]
Abstract
In this study, cellulose acetate (CA) based hemodialysis membranes were prepared by a dry phase inversion method and the influences of urease immobilization on the clearing performance and protein adsorption capacity of the membranes were investigated. Permeation experiments have shown that modification of CA membranes with urease immobilization not only enhanced the transport rate of urea but also increased the permeation coefficients of uric acid and creatinine by changing the structure of the membrane. Furthermore, the protein adsorption capacity of the CA membranes decreased. On the other hand, the mechanical strength of the modified CA membrane did not change significantly compared with that of the unmodified one. A mathematical model was derived to determine the rate of mass transfer of urea through modified CA membranes. Model predictions along with the experimental data suggest that urease immobilization can be used as an alternative method in preparing CA based hemodialysis membranes with improved transport characteristics and biocompatibility through reduced protein adsorption capacities.
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Affiliation(s)
- Filiz Yasar Mahlicli
- Department of Chemical Engineering, Izmir Institute of Technology, Gulbahçe Koyu, 35430 Urla, Izmir, Turkey
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42
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Mares J, Thongboonkerd V, Tuma Z, Moravec J, Matejovic M. Specific adsorption of some complement activation proteins to polysulfone dialysis membranes during hemodialysis. Kidney Int 2009; 76:404-13. [PMID: 19421191 DOI: 10.1038/ki.2009.138] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dialyser bioincompatibility is an important factor contributing to complications of hemodialysis with well known systemic consequences. Here we studied the local processes that occur on dialysis membranes by eluting proteins adsorbed to the polysulfone dialyser membranes of 5 patients after 3 consecutive routine maintenance hemodialysis sessions. At the end of each procedure, a plasma sample was also collected. These eluates and their accompanying plasma samples were separated by 2-dimensional gel electrophoresis; all proteins that were present in all patients were analyzed by tandem mass spectrometry; and a ratio of the relative spot intensity of the eluate to plasma was calculated. Of 153 proteins detected, 84 were found in all patients, 57 of which were successfully identified by mass spectrometry as 38 components of 23 unique proteins. In 10 spots the relative eluate intensity differed significantly from that in the plasma, implying preferential adsorption. These proteins included ficolin-2, clusterin, complement C3c fragment, and apolipoprotein A1. Our finding of a selective binding of ficolin-2 to polysulfone membranes suggests a possible role of the lectin complement pathway in blood-dialyser interactions.
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Affiliation(s)
- Jan Mares
- Department of Internal Medicine I, Charles University Medical School and Teaching Hospital, Plzen, Czech Republic.
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43
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Hemocompatibility and cytocompatibility of styrenesulfonate-grafted PDMS–polyurethane–HEMA hydrogel. Colloids Surf B Biointerfaces 2009; 70:132-41. [DOI: 10.1016/j.colsurfb.2008.12.020] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 12/12/2008] [Accepted: 12/14/2008] [Indexed: 11/17/2022]
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44
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45
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Jao WC, Lin CH, Hsieh JY, Yeh YH, Liu CY, Yang MC. Effect of immobilization of polysaccharides on the biocompatibility of poly(butyleneadipate-co-terephthalate) films. POLYM ADVAN TECHNOL 2009. [DOI: 10.1002/pat.1459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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46
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Huang LY, Yang MC. Surface immobilization of chondroitin 6-sulfate/heparin multilayer on stainless steel for developing drug-eluting coronary stents. Colloids Surf B Biointerfaces 2008; 61:43-52. [PMID: 17720460 DOI: 10.1016/j.colsurfb.2007.07.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2007] [Revised: 07/03/2007] [Accepted: 07/08/2007] [Indexed: 10/23/2022]
Abstract
A thin layer of gold was sputtered onto SUS316L stainless steel (SS) sheet. After thiolizing the Au layer with dimercaptosuccinic acid (DMSA), layers of chondroitin 6-sulfate (ChS) and heparin (HEP) were alternatively immobilized on the Au-treated SS. The resulting stent would be both anti-atherogenic and anti-thrombogenic. After repeating one to five cycles, one to five layers of polyelectrolyte complex (PEC) of ChS/HEP were successfully fabricated. A model drug, sirolimus, was loaded in the ChS/HEP layers. The SS-ChS-HEP surface was examined by X-ray photoelectron spectroscopy (XPS), contact angle, and atomic force microscopy (AFM) measurement. Biological tests including hemocompatibility, drug release pattern, and the inhibition of smooth muscle cell proliferation were also performed. The results show that the multilayer of ChS/HEP exhibits longer blood clotting time than pure SS substrates. Therefore, this biopolymer multilayer can avoid thrombosis on the stainless. The releasing rate of sirolimus can be controlled through the number of ChS/HEP PEC layers. With a five-layer coating, sirolimus can be released continuously for more than 20 days. Furthermore, the multilayer ChS/HEP loaded with sirolimus can suppress specifically to the growth of smooth muscle cells to avoid restenosis. This suggests that the PEC multilayer of ChS/HEP modified-SS could be applied in making drug-eluting stents.
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Affiliation(s)
- Li-Ying Huang
- Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan, ROC
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47
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Wang ZG, Wan LS, Xu ZK. Surface engineerings of polyacrylonitrile-based asymmetric membranes towards biomedical applications: An overview. J Memb Sci 2007. [DOI: 10.1016/j.memsci.2007.05.012] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Yu DG, Jou CH, Lin WC, Yang MC. Surface modification of poly(tetramethylene adipate-co-terephthalate) membrane via layer-by-layer assembly of chitosan and dextran sulfate polyelectrolyte multiplayer. Colloids Surf B Biointerfaces 2007; 54:222-9. [PMID: 17174535 DOI: 10.1016/j.colsurfb.2006.10.026] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2006] [Revised: 09/29/2006] [Accepted: 10/21/2006] [Indexed: 10/24/2022]
Abstract
The improvement of hydrophilicity and hemocompatibility of poly(tetramethylene adipate-co-terephthalate) (PTAT) membrane was developed via polyelectrolyte multilayers (PEMs) immobilization. The polysaccharide PEMs included chitosan (CS, as a positive-charged and antibacterial agent) and dextran sulfate (DS, as a negative-charged and anti-adhesive agent) were successfully prepared using the aminolyzed PTAT membrane in a layer-by-layer (LBL) self-assembly manner. The obtained results showed that the contact angle of as-modified PTAT membranes reached to the steady value after four bilayers of coating, hence suggesting that the full coverage was achieved. It could be found that the PTAT-PEMs membranes with DS as the outmost layer could resist the platelet adhesion and human plasma fibrinogen (HPF) adsorption, thereby prolonging effectively the blood coagulation times. According to L929 fibroblast cell growth inhibition index, the as-prepared PTAT membranes exhibited non-cytotoxic. Overall results demonstrated that such an easy, valid and shape-independent processing should be potential for surface modification of PTAT membrane in the application of hemodialysis devices.
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Affiliation(s)
- Da-Guang Yu
- Department of Textile Science, Nanya Institute of Technology, Chung-Li, Tao-Yuan, Taiwan.
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49
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Liu TY, Liao HC, Lin CC, Hu SH, Chen SY. Biofunctional ZnO nanorod arrays grown on flexible substrates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:5804-9. [PMID: 16768511 DOI: 10.1021/la052363o] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
A square pattern of thioctic acid self-assembled ZnO nanorod arrays was grown on a large 4-in. thermoplastic polyurethane (TPU) flexible substrate via an in situ soluthermal process at low temperature (348 K). With the addition of dimercaptosuccinic acid (DMSA), the surface chemistry forms a disordered ZnO phase, and the morphology of the ZnO-DMSA nanorods changes with various DMSA addition times. As evidenced by the Zn2p3/2, C1s, O1s, S2p, and N-1s scans of X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), DMSA and proteins were conjugated on the single crystalline ZnO nanorods. The photoluminescence (PL) spectra indicated that the optical properties of ZnO nanorod arrays were changed while the DMSA was inserted, and proteins were conjugated. Furthermore, a control test found that the ZnO nanorods show a significant improvement in sensitive characterization over the ZnO film. As another proteins (e.g., human serum albumin, HSA) were bound onto the ZnO-bovine serum albumin (BSA) nanorod arrays, an enhanced ultraviolet emission intensity was detected. On the basis of these results, one might be expected to conjugate specific biomolecules on the biofunctional ZnO nanorod arrays to detect the complementary biomolecules by PL detecting.
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Affiliation(s)
- Ting-Yu Liu
- Department of Materials Sciences and Engineering, National Chiao Tung University, Hsinchu, Taiwan, 300, ROC
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50
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Lin WC, Yu DG, Yang MC. Blood compatibility of novel poly(γ-glutamic acid)/polyvinyl alcohol hydrogels. Colloids Surf B Biointerfaces 2006; 47:43-9. [PMID: 16386882 DOI: 10.1016/j.colsurfb.2005.11.013] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2005] [Revised: 11/03/2005] [Accepted: 11/17/2005] [Indexed: 11/30/2022]
Abstract
Sodium poly(gamma-glutamic acid) (PGA), a water-soluble and biodegradable polypeptide, was reacted with polyvinyl alcohol (PVA) to form hydrogel without any chemical treatment. The gelation occurred probably due to physical cross-linking of polymer chains by interpenetrating hydrogen bonding. From the results of thermal analysis, PGA/PVA exhibited better thermal stability than native PVA. Although the swelling ratio decreased with the increase of PGA content, however, the water resistance and retention were improved. The tensile strength of the PGA/PVA hydrogel membranes was about 15-30% lower than that of the native PVA, whereas the elongation was increased 2.0-2.6 times. The amount of protein adsorbed and platelets adhered on the PGA/PVA membranes were significantly curtailed with increasing PGA content, thereby showing improved blood compatibility. The as-fabricated hydrogels were proven to be non-cytotoxic evaluated in vitro by L-929 fibroblast incubation. Overall results demonstrate that the non-cytotoxic PGA/PVA hydrogels, due to better water resistance, mechanical properties and blood compatibility could be very promising candidates for blood-contacting medical devices.
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Affiliation(s)
- Wen-Ching Lin
- Department of Polymer Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan.
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