1
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Wu F, Zhang W, Du Y, Cheng F, Li H. Tunable shape memory properties of highly stretchable poly(ester urea) random copolymers based on α-amino acids. SOFT MATTER 2022; 18:7959-7967. [PMID: 36214048 DOI: 10.1039/d2sm00936f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The exploration of biodegradable polymers with shape memory effects (SMEs) holds great promise in biomedical fields. Revealing the relationship between the SMEs and polymer structures not only contributes to interpreting the SME mechanisms, but also prompts the customization of materials properties for specific requirements. Herein, we developed a series of poly(ester urea) (PEU) random copolymers composed of two different diamine monomers based on L-alanine and L-valine, respectively. It was shown that the shape memory performance of the PEU copolymers strongly depended on the composition of two different diamine monomers in the PEU copolymers and other physical properties. This tunability likely arose from the change of polymer chain mobility and crystallinity, which were impacted by the choice of α-amino acids. Intriguingly, thin films of the PEU copolymers exhibited a high strain at break of 347-743% around the physiological temperature (35 °C). Moreover, the random copolymerization of two different sorts of diamine monomers has been demonstrated as a facile approach to precisely tailor the physical properties of the PEUs according to custom needs.
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Affiliation(s)
- Fangyun Wu
- CNNC Nuclear Power Operations Management Co., Ltd, Haiyan, 314300, China
| | - Wei Zhang
- CNNC Nuclear Power Operations Management Co., Ltd, Haiyan, 314300, China
| | - Yanqiu Du
- College of Material and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, 314001, China.
| | - Fengmei Cheng
- College of Material and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, 314001, China.
| | - Haidong Li
- College of Material and Textile Engineering, Nanotechnology Research Institute, Jiaxing University, Jiaxing, 314001, China.
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Wu X, Wang C, Hao P, He F, Yao Z, Zhang X. Adsorption properties of albumin and fibrinogen on hydrophilic/hydrophobic TiO 2 surfaces: A molecular dynamics study. Colloids Surf B Biointerfaces 2021; 207:111994. [PMID: 34303996 DOI: 10.1016/j.colsurfb.2021.111994] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/06/2021] [Accepted: 07/16/2021] [Indexed: 01/23/2023]
Abstract
In serval experimental researches, UV-induced hydrophilicity enabled better hemocompatibility in the TiO2 surface, which was considered to be caused by the removal of the carboxylic acid contamination from the surface. In this paper, we altered the surface wetting property by applying the formate contamination on the rutile (110) surface, and systematically investigated the adsorption properties of albumin and fibrinogen on hydrophilic/hydrophobic TiO2 surface. Unique contacts were found between the charged residues and the hydrophilic surface, anchoring the protein on the surface. The small size and the heart shape of albumin make it easy to cross the stable water layers near the surface. Besides, albumin has a higher proportion of charged residues, so it can form more unique contacts on the hydrophilic surface. Therefore, the albumin tends to adsorb on the hydrophilic surface. For the hydrophobic surface, the water layers near the surface are weakened, which helps the fibrinogen diffusing to the surface and adjusting its orientation. Although the hydrophobic surface cannot form the unique contacts, the larger size of fibrinogen can provide more residues to form enough ordinary contacts after adjusting, and then achieves stable adsorption. Therefore, fibrinogen tends to adsorb on the hydrophobic surface.
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Affiliation(s)
- Xiao Wu
- Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China
| | - Chenyang Wang
- Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China
| | - Pengfei Hao
- Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China
| | - Feng He
- Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China
| | - Zhaohui Yao
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Xiwen Zhang
- Department of Engineering Mechanics, Tsinghua University, Beijing, 100084, China.
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3
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Liu Q, Ying G, Jiang N, Yetisen AK, Yao D, Xie X, Fan Y, Liu H. Three-dimensional silk fibroin microsphere-nanofiber scaffolds for vascular tissue engineering. MEDICINE IN NOVEL TECHNOLOGY AND DEVICES 2021. [DOI: 10.1016/j.medntd.2020.100051] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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4
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Jiang P, He Y, Zhao Y, Chen L. Hierarchical Surface Architecture of Hemodialysis Membranes for Eliminating Homocysteine Based on the Multifunctional Role of Pyridoxal 5'-phosphate. ACS APPLIED MATERIALS & INTERFACES 2020; 12:36837-36850. [PMID: 32705861 DOI: 10.1021/acsami.0c07090] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Patients with end-stage renal disease are prone to developing a complication of hyperhomocysteinemia, manifesting as an elevation of the homocysteine (Hcy) concentration in human plasma. However, Hcy as a protein-bound toxin is barely removed by conventional hemodialysis membranes. Here, we report a novel hemodialysis membrane by preparing a bioactive coating of pyridoxal 5'-phosphate (PLP) and adding biocompatible hyperbranched polyglycerol (HPG) brushes to achieve Hcy removal. The dip-applied PLP coating, a coenzyme with a role in Hcy metabolism, dramatically promoted a decrease in the Hcy concentration in human plasma. Moreover, the aldehyde group of PLP had an intrinsic chemical reactivity toward the terminal amino group to immobilize the HPG brushes on the hemodialysis membrane surface. The hierarchical PLP-HPG layer-functionalized membranes had a high efficacy for eliminating Hcy, with a concentration from the initial stage of 150 μmol/L reduced to a nearly normal level of 20 μmol/L in simulated dialysis. By analyzing the impact of HPG brushes with various chain lengths, we found that HPG brushes with a medium length enabled the PLP coating with the bioactive function of Hcy conversion to additionally protect Hcy-attacked target cells by providing excellent hydrophilicity and a dense enough chain volume overlap of the hyperbranched architecture. Simultaneously, the densely packed HPG brushes generated a maximal steric and hydration barrier that significantly improved biofouling resistance against blood proteins. The optimally functionalized membranes showed a clearance of 83.1% urea and 49.6% lysozyme and a rejection of 96.0% bovine serum albumin. The diversely functionalized PLP-HPG layers demonstrate a potential route for a more integrated hemodialysis membrane that can cope with the urgent issue of hyperhomocysteinemia in clinical hemodialysis therapy.
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Affiliation(s)
- Peng Jiang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yang He
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Yiping Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Li Chen
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
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Nikam SP, Nettleton K, Everitt JI, Barton HA, Becker ML. Antibiotic eluting poly(ester urea) films for control of a model cardiac implantable electronic device infection. Acta Biomater 2020; 111:65-79. [PMID: 32447067 DOI: 10.1016/j.actbio.2020.04.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/05/2020] [Accepted: 04/13/2020] [Indexed: 02/07/2023]
Abstract
Cardiac implantable electronic device (CIED) infections acquired during or after surgical procedures are a major complication that are challenging to treat therapeutically, resulting in chronic and sometimes fatal infections. Localized delivery of antibiotics at the surgical site could be used to supplement traditional systemic administration as a preventative measure. Herein, we investigate a cefazolin-eluting l-valine poly(ester urea) (PEU) films as a model system for localized antibiotic delivery for CIEDs. Poly(1-VAL-8) PEU was used to fabricate a series of antibiotic-loaded films with varied loading concentrations (2%, 5%, 10% wt/wt) and thicknesses (40 µm, 80 µm, 140 µm). In vitro release measurements show thickness and loading concentration influence the amount and rate of cefazolin release. Group 10%-140 µm (load-thickness) showed 22.5% release of active pharmaceutical ingredient (API) in the first 24 h and 81.2% of cumulative percent release through day 14 and was found most effective in bacterial clearance in vitro. This group was also effective in clearing a bacterial infection in a model in vivo rat study while eliciting a limited inflammatory response. Our results suggest the feasibility of cefazolin-loaded PEU films as an effective sustained release matrix for localized delivery of antibiotics. SIGNIFICANCE STATEMENT: Implant-associated infections acquired during surgical procedures are a major complication that have proven a challenge to treat clinically, resulting in chronic and sometimes fatal infections. In this manuscript, we investigate an antibiotic-eluting L-valine poly(ester urea) (PEU) films as a model system for localized delivery of cefazolin. Significantly, we demonstrate a wide variation in temporal delivery and dosing within this family of PEUs and show that the delivery can be extended by varying the film thickness. The in vivo results show efficacy in an infected wound model and suggest antibiotic loaded PEU films function as an effective sustained release matrix for localized delivery of antibiotics across a number of clinical indications.
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Nikam SP, Chen P, Nettleton K, Hsu YH, Becker ML. Zwitterion Surface-Functionalized Thermoplastic Polyurethane for Antifouling Catheter Applications. Biomacromolecules 2020; 21:2714-2725. [DOI: 10.1021/acs.biomac.0c00456] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Shantanu P. Nikam
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Peiru Chen
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Karissa Nettleton
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Yen-Hao Hsu
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Matthew L. Becker
- Department of Chemistry, Mechanical Engineering and Materials Science, Orthopaedic Surgery, and Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
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Abel AK, Dreger NZ, Nettleton K, Gustafson TP, Forster SP, Becker ML. Amino Acid-Based Poly(ester urea)s as a Matrix for Extended Release of Entecavir. Biomacromolecules 2020; 21:946-954. [DOI: 10.1021/acs.biomac.9b01586] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexandra K. Abel
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Nathan Z. Dreger
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Karissa Nettleton
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Tiffany P. Gustafson
- Department of Pharmaceutical Sciences, Merck & Co., Inc., 90 E. Scott Ave., Rahway, New Jersey 07065, United States
| | - Seth P. Forster
- Department of Pharmaceutical Sciences, Merck & Co., Inc., 90 E. Scott Ave., Rahway, New Jersey 07065, United States
| | - Matthew L. Becker
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
- Department of Mechanical Engineering and Material Science, Duke University, Durham, North Carolina 27708, United States
- Orthopaedic Surgery, Duke University, Durham, North Carolina 27708, United States
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8
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Mohan T, Čas A, Bračič M, Plohl O, Vesel A, Rupnik M, Zemljič LF, Rebol J. Highly Protein Repellent and Antiadhesive Polysaccharide Biomaterial Coating for Urinary Catheter Applications. ACS Biomater Sci Eng 2019; 5:5825-5832. [DOI: 10.1021/acsbiomaterials.9b01288] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Tamilselvan Mohan
- Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
| | - Alja Čas
- Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
| | - Matej Bračič
- Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
| | - Olivija Plohl
- Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
| | - Alenka Vesel
- Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Teslova 30, Ljubljana SI-1000, Slovenia
| | - Maja Rupnik
- Faculty of Medicine, University of Maribor, Taborska ulica 8, Maribor 2000, Slovenia
- National Laboratory for Health, Environment and Food, Prvomajska ulica 1, Maribor 2000, Slovenia
| | - Lidija Fras Zemljič
- Laboratory for Characterization and Processing of Polymers (LCPP), Faculty of Mechanical Engineering, University of Maribor, Smetanova ulica 17, Maribor 2000, Slovenia
| | - Janez Rebol
- Department of Otorhinolaryngology, Cervical and Maxillofacial Surgery, University Medical Centre Maribor, Ljubljanska ulica 5, Maribor 2000, Slovenia
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Saxena S, Jayakannan M. Development of l-Amino-Acid-Based Hydroxyl Functionalized Biodegradable Amphiphilic Polyesters and Their Drug Delivery Capabilities to Cancer Cells. Biomacromolecules 2019; 21:171-187. [DOI: 10.1021/acs.biomac.9b01124] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Sonashree Saxena
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
| | - Manickam Jayakannan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Pune, Dr. Homi Bhabha Road, Pune 411008, Maharashtra, India
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Jang TS, Lee JH, Kim S, Park C, Song J, Jae HJ, Kim HE, Chung JW, Jung HD. Ta ion implanted nanoridge-platform for enhanced vascular responses. Biomaterials 2019; 223:119461. [PMID: 31518843 DOI: 10.1016/j.biomaterials.2019.119461] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/24/2019] [Accepted: 08/29/2019] [Indexed: 12/26/2022]
Abstract
Bare metal stents are commonly used in interventional cardiology; they provide successful treatment because of their excellent mechanical properties, expandability ratios, and flexibility. However, their insufficient vascular affinity can induce the development of neointimal hyperplasia following arterial injury and subsequent smooth muscle cell overgrowth in the lumen of a stented vessel. Nanoengineering of the bare metal stent surface is a valuable strategy for eliciting favorable vascular responses. In this study, we introduce a target-ion-induced plasma sputtering (TIPS) technique to fabricate a platform with a favorable endothelial environment. This technique enables the simple single-step production of a Ta-implanted nanoridged surface on a stent with a complex 3D geometry that shows a clear tendency to become oriented parallel to the direction of blood flow. Moreover, the nanoridges developed show good structural integrity and mechanical stability, resulting in apparently stable morphologies under high strain rates. In vitro cellular responses to the Co-Cr, such as endothelialization, platelet activation, and blood coagulation, are considerably altered after TIPS treatment; endothelium formation is rapid and surface thrombogenicity is low. An in vivo rabbit iliac artery model is used to confirm that the nanoridged surface facilitates rapid re-endothelialization and limits the formation of neointima compared to the bare stent. These results indicate that the Ta ion implanted nanoridge platform fabricated using the TIPS technique has immense potential as a solution for in-stent restenosis and ensuring the long-term patency of bare metal stents.
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Affiliation(s)
- Tae-Sik Jang
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999, South Korea
| | - Jae Hwan Lee
- Department of Radiology, Seoul National University Bundang Hospital, Seongnam, 13620, South Korea
| | - Sungwon Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Cheonil Park
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457, Singapore
| | - Hwan Jun Jae
- Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, South Korea
| | - Jin Wook Chung
- Department of Radiology, Seoul National University College of Medicine, Seoul, 03080, South Korea
| | - Hyun-Do Jung
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon, 21999, South Korea.
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Dreger NZ, Zander ZK, Hsu YH, Luong D, Chen P, Le N, Parsell T, Søndergaard C, Dunbar ML, Koewler NJ, Suckow MA, Becker ML. Zwitterionic amino acid-based Poly(ester urea)s suppress adhesion formation in a rat intra-abdominal cecal abrasion model. Biomaterials 2019; 221:119399. [PMID: 31421314 DOI: 10.1016/j.biomaterials.2019.119399] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 12/16/2022]
Abstract
Hernia repair outcomes have improved with more robust material options for surgeons and optimized surgical techniques. However, ventral hernia repairs remain challenging with an inherent risk of post-surgical adhesions in the peritoneal space which can occur regardless of interventional material or its surgical placement. Herein, amino acid-based poly(ester urea)s (PEUs) with varied amount of an allyl ether side chains were modified post polymerization modification with the zwitterionic sulfnate group (3-((3-((3-mercaptopropanoyl)oxy)propyl) dimethylammonio)propane-1-sulfonate) to promote anti-adhesive properties. These alloc-PEUs were processed using roll-to-roll fabrication methods to afford films that were amenable to surface functionalization via a zwitterion-thiol. Functional group availability on the surface was confirmed via fluorescence microscopy, x-ray photoelectron spectroscopy (XPS), and quartz crystal microbalance (QCM) measurements. Zwitterionic treated PEUs exhibited reduced fibrinogen adsorption in vitro when compared to unfunctionalized control polymer. A rat intrabdominal cecal abrasion adhesion model was used to assess the extent and tenacity of adhesion formation in the presence of the PEUs. The 10% alloc-PEU zwitterion functionalized material was found to reduce the extent and tenacity of adhesions when compared to adhesion controls and the unfunctionalized PEU controls.
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Affiliation(s)
- Nathan Z Dreger
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Zachary K Zander
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Yen-Hao Hsu
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Derek Luong
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Peiru Chen
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | - Nancy Le
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA
| | | | | | - Misha L Dunbar
- College of Veterinary Medicine, The University of Minnesota, Minneapolis, MN, 55455, USA
| | - Nathan J Koewler
- College of Veterinary Medicine, The University of Minnesota, Minneapolis, MN, 55455, USA
| | - Mark A Suckow
- Department of Biomedical Engineering, The University of Kentucky, Lexington, KY, 40506, USA
| | - Matthew L Becker
- Department of Polymer Science, The University of Akron, Akron, OH, 44325, USA; Biomedical Engineering, The University of Akron, Akron, OH, 44325, USA; Department of Chemistry, Duke University, Durham, NC, 27708, USA; Department of Mechanical Engineering and Material Science, Duke University, Durham, NC, 27708, USA; Orthopaedic Surgery, Duke University, Durham, NC, 27708, USA.
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12
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Takahashi A, Takahashi S, Tsujino T, Isobe K, Watanabe T, Kitamura Y, Watanabe T, Nakata K, Kawase T. Platelet adhesion on commercially pure titanium plates in vitro I: effects of plasma components and involvement of the von Willebrand factor and fibronectin. Int J Implant Dent 2019; 5:5. [PMID: 30799507 PMCID: PMC6387980 DOI: 10.1186/s40729-019-0160-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 01/14/2019] [Indexed: 12/13/2022] Open
Abstract
Background Platelet-rich plasma (PRP) is widely used in regenerative dentistry. Furthermore, it is often applied in the pretreatment of titanium implants to improve their surface bioaffinity and initial stability. However, effects of PRP application on implant surface at cellular and molecular levels remain poorly understood. Therefore, we examined platelet adhesion on commercially pure titanium (cp-Ti) plates, with a particular focus on fibrinogen (FGN), von Willebrand factor (vWF), and fibronectin (FN), in the presence or absence of plasma components. Methods Citrated blood samples were obtained from six healthy male volunteers, and pure-PRP (P-PRP) and pure platelet suspensions in phosphate-buffered saline (PBS) were prepared. Platelet adhesion on cp-Ti plate surface was evaluated by phalloidin staining and tetrazolium dye assay. Distribution of FGN, vWF, FN, albumin, CD62P, and CD63 was examined by immunocytochemical analysis. Results Platelets in PBS suspensions rapidly and time-dependently adhered to cp-Ti plate surface, but this adhesion was substantially disturbed by the presence of plasma components. FGN was most preferably adsorbed regardless of the presence or absence of plasma components, while vWF and FN showed greater accumulation on platelet adhesion area. Conclusions Although FGN is rapidly and abundantly adsorbed on cp-Ti plate surface, vWF and FN function as major platelet adhesion molecules in citrated blood samples. After pretreatment with P-PRP, however, platelets adhered to cp-Ti much less efficiently. Therefore, P-PRP pretreatment might not directly contribute to surface functionalization, initial stabilization, and osseointegration of machined or similar types of implants. Electronic supplementary material The online version of this article (10.1186/s40729-019-0160-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | - Taisuke Watanabe
- Division of Anatomy and Cell Biology of the Hard Tissue, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan
| | - Yutaka Kitamura
- Department of Oral and Maxillofacial Surgery, Matsumoto Dental University, Shiojiri, Japan
| | - Takao Watanabe
- Department of Oral Science, Graduate School of Dentistry, Kanagawa Dental University, Yokosuka, Japan
| | - Koh Nakata
- Bioscience Medical Research Center, Niigata University Medical and Dental Hospital, Niigata, Japan
| | - Tomoyuki Kawase
- Division of Oral Bioengineering, Institute of Medicine and Dentistry, Niigata University, Niigata, Japan.
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Bellassai N, Marti A, Spoto G, Huskens J. Low-fouling, mixed-charge poly-l-lysine polymers with anionic oligopeptide side-chains. J Mater Chem B 2018; 6:7662-7673. [PMID: 32254888 DOI: 10.1039/c8tb01619d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Biosensors and biomedical devices require antifouling surfaces to prevent the non-specific adhesion of proteins or cells, for example, when aiming to detect circulating cancer biomarkers in complex natural media (e.g., in blood plasma or serum). A mixed-charge polymer was prepared by the coupling of a cationic polyelectrolyte and an anionic oligopeptide through a modified "grafting-to" method. The poly-l-lysine (PLL) backbone was modified with different percentages (y%) of maleimide-NHS ester chains (PLL-mal(y%), from 13% to 26%), to produce cationic polymers with specific grafting densities, obtaining a mixed-charge polymer. The anionic oligopeptide structure (CEEEEE) included one cysteine (C) and five glutamic acid (E) units, which were attached to the PLL-mal(y%) polymers, preadsorbed on gold substrates, through the thiol-maleimide Michael-type addition. Contact angle and PM-IRRAS data confirmed monolayer formation of the modified PLLs. Antifouling properties of peptide-PLL surfaces were assessed in adsorption studies using quartz crystal microbalance with dissipation (QCM-D) and surface plasmon resonance imaging (SPRI) techniques. PLL-mal(26%)-CEEEEE showed the best antifouling performance in single-protein solutions, and the nonspecific adsorption of proteins was 46 ng cm-2 using diluted human plasma samples. The new PLL-mal(26%)-CEEEEE polymer offers a prominent low-fouling activity in complex media, with rapid and simple procedures for the synthesis and functionalization of the surface compared to conventional non-fouling materials.
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Affiliation(s)
- Noemi Bellassai
- Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici, c/o Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Catania, Italy
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Chen K, Dreger NZ, Peng F, Vogt BD, Becker ML, Cakmak M. Nonlinear Mechano-Optical Behavior and Strain-Induced Structural Changes of l-Valine-Based Poly(ester urea)s. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Childers EP, Dreger NZ, Ellenberger AB, Wandel MB, Domino K, Xu Y, Luong D, Yu J, Orsini D, Bell RH, Premanandan C, Fening SD, Becker ML. Enhanced Rotator-Cuff Repair Using Platelet-Rich Plasma Adsorbed on Branched Poly(ester urea)s. Biomacromolecules 2018; 19:3129-3139. [DOI: 10.1021/acs.biomac.8b00725] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Erin P. Childers
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Nathan Z. Dreger
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Alex B. Ellenberger
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Mary Beth Wandel
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Karen Domino
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Yanyi Xu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Derek Luong
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - Jiayi Yu
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
| | - David Orsini
- Summa Health System, Akron, Ohio 44304, United States
| | - Robert H. Bell
- Department of Orthopaedics, Crystal Clinic, Inc., Akron, Ohio 44333, United States
| | - Christopher Premanandan
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio 43210, United States
| | - Stephen D. Fening
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Matthew L. Becker
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325, United States
- Department of Biomedical Engineering, The University of Akron, Akron, Ohio 44325, United States
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16
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Dreger NZ, Wandel MB, Robinson LL, Luong D, Søndergaard CS, Hiles M, Premanandan C, Becker ML. Preclinical in Vitro and in Vivo Assessment of Linear and Branched l-Valine-Based Poly(ester urea)s for Soft Tissue Applications. ACS Biomater Sci Eng 2018; 4:1346-1356. [PMID: 33418665 DOI: 10.1021/acsbiomaterials.7b00920] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
| | | | | | | | | | - Michael Hiles
- Cook Biotech Incorporated, West Lafayette, Indiana 47906, United States
| | - Christopher Premanandan
- Department of Veterinary Biosciences, College of Veterinary Medicine, The Ohio State University, Columbus, Ohio 43210, United States
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17
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Yang L, Han L, Liu Q, Xu Y, Jia L. Galloyl groups-regulated fibrinogen conformation: Understanding antiplatelet adhesion on tannic acid coating. Acta Biomater 2017; 64:187-199. [PMID: 28958718 DOI: 10.1016/j.actbio.2017.09.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 09/01/2017] [Accepted: 09/25/2017] [Indexed: 12/20/2022]
Abstract
Fibrinogen (Fgn) has been identified as the key protein in the process of biomaterial-induced platelet adhesion. We have recently reported a facile and effective method for constructing platelet-repellent surface using a natural polyphenol component tannic acid (TA). However, the mechanism by which the TA surface repels platelets was not fully understood. To address this issue, we investigated the adsorption of Fgn (amount and conformation) on four TA-functionalized surfaces with different amounts of galloyl groups and the potential for platelet adherence on these surfaces. The experimental results indicated that the four TA-functionalized surfaces adsorbed a similar amount of Fgn, but the conformation and bioactivity of the adsorbed Fgn and the subsequent platelet adherence were quite different among the surfaces. The TA surface with the most galloyl groups induced minimal changes in the conformation of Fgn, a result of the α and γ chains of the adsorbed Fgn being highly inactive on the surface, thus leading to an outstanding antiplatelet adhesion performance. With a decreased amount of galloyl groups, the activity of the α chain in the adsorbed Fgn remained unchanged, but the activity of the γ chain and the extent of platelet adhesion gradually increased. This work provided a new concept for controlling platelet adhesion on solid materials, and we envision that the TA film could have potential applications in the development of new blood-contacting biomaterials in the future. STATEMENT OF SIGNIFICANCE Reducing platelet adhesion on material surfaces is of tremendous scientific interest in the field of blood-contacting biomaterials, but it remains a big challenge due to the highly adhesive nature of the platelets. In this study, we demonstrated for the first time that tannic acid surface with abundant galloyl groups could induce minimal conformational changes of fibrinogen, eventually leading to an outstanding antiplatelet adhesion effect. In addition, the platelet adhesion response could be easily controlled through regulating the amount of galloyl groups on the surface. This work provided a new strategy for controlling platelet adhesion on solid materials, which was totally different from existing methods such as construction of physically patterned surfaces, modification of inert hydrophilic polymers or appending bioactive moieties to target surfaces.
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18
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Peterson GI, Childers EP, Li H, Dobrynin AV, Becker ML. Tunable Shape Memory Polymers from α-Amino Acid-Based Poly(ester urea)s. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00680] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Gregory I. Peterson
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Erin P. Childers
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Hao Li
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Andrey V. Dobrynin
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
| | - Matthew L. Becker
- Department of Polymer Science, The University of Akron, Akron, Ohio 44325-3909, United States
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19
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Peterson GI, Dobrynin AV, Becker ML. α-Amino Acid-Based Poly(Ester urea)s as Multishape Memory Polymers for Biomedical Applications. ACS Macro Lett 2016; 5:1176-1179. [PMID: 35658180 DOI: 10.1021/acsmacrolett.6b00648] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The thermal shape memory behavior of a series of α-amino acid-based poly(ester urea)s has been explored. We demonstrate that these materials exhibit excellent shape memory performance in dual- and triple-shape thermomechanical testing. Significant activation of chain mobility above the Tg as well as a hydrogen bonding network provide the basis for shape transformations and recovery. Additionally, we tuned the shape memory properties of these materials with polymer blending, enabling the demonstration of quadruple-shape memory cycles.
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Affiliation(s)
- Gregory I. Peterson
- The University of Akron, Department of
Polymer Science, Akron, Ohio 44325-3909, United States
| | - Andrey V. Dobrynin
- The University of Akron, Department of
Polymer Science, Akron, Ohio 44325-3909, United States
| | - Matthew L. Becker
- The University of Akron, Department of
Polymer Science, Akron, Ohio 44325-3909, United States
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