1
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Xu Z, Li Q, Huang Y, Guo K, Xue B, Cao Y, Li Y. Blocking Nonspecific Interactions Using Y-Shape Poly(ethylene glycol). Int J Mol Sci 2023; 24:12414. [PMID: 37569789 PMCID: PMC10419274 DOI: 10.3390/ijms241512414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 07/27/2023] [Accepted: 07/31/2023] [Indexed: 08/13/2023] Open
Abstract
Nonspecific interactions play a significant role in physiological activities, surface chemical modification, and artificial adhesives. However, nonspecificity sometimes causes sticky problems, including surface fouling, decreased target specificity, and artifacts in single-molecule measurements. Adjusting the liquid pH, using protein-blocking additives, adding nonionic surfactants, or increasing the salt concentration are common methods to minimize nonspecific binding to achieve high-quality data. Here, we report that grafting heteromorphic polyethylene glycol (Y-shape PEG) with two inert terminates could noticeably decrease nonspecific binding. As a proof-of-concept, we performed single-molecule force spectroscopy and fluorescence staining imaging experiments to verify the feasibility of Y-shape PEG in blocking nonspecific interactions. Our results indicate that Y-shape PEG could serve as a prominent and efficient candidate to minimize nonspecificity for scientific and biomedical applications.
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Affiliation(s)
- Zhengyu Xu
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
| | - Qingtai Li
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
| | - Yaying Huang
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
| | - Kaiqiang Guo
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
| | - Bin Xue
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
| | - Yi Cao
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
- Jinan Microecological Biomedicine Shandong Laboratory, Jinan 250021, China
| | - Yiran Li
- Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructure, Department of Physics, Nanjing University, Nanjing 210093, China; (Z.X.); (Q.L.); (Y.H.); (K.G.); (B.X.)
- Medical School, Nanjing University, Nanjing 210093, China
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2
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No Y, Kim NH, Zafar MS, Park SH, Lee J, Chae H, Yun WS, Kim YD, Kim YH. Effect of Secondary Structures on the Adsorption of Peptides onto Hydrophobic Solid Surfaces Revealed by SALDI-TOF and MD Simulations. ACS OMEGA 2022; 7:43492-43498. [PMID: 36506148 PMCID: PMC9730778 DOI: 10.1021/acsomega.2c03934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 11/03/2022] [Indexed: 06/17/2023]
Abstract
The adsorption of peptides and proteins on hydrophobic solid surfaces has received considerable research attention owing to their wide applications to biocompatible nanomaterials and nanodevices, such as biosensors and cell adhesion materials with reduced nanomaterial toxicity. However, fundamental understandings about physicochemical hydrophobic interactions between peptides and hydrophobic solid surfaces are still unknown. In this study, we investigate the effect of secondary structures on adsorption energies between peptides and hydrophobic solid surfaces via experimental and theoretical analyses using surface-assisted laser desorption/ionization-time-of-flight (SALDI-TOF) and molecular dynamics (MD) simulations. The hydrophobic interactions between peptides and hydrophobic solid surfaces measured via SALDI-TOF and MD simulations indicate that the hydrophobic interaction of peptides with random coil structures increased more than that of peptides with an α-helix structure when polar amino acids are replaced with hydrophobic amino acids. Additionally, our study sheds new light on the fundamental understanding of the hydrophobic interaction between hydrophobic solid surfaces and peptides that have diverse secondary structures.
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Affiliation(s)
- Young
Hyun No
- SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Nam Hyeong Kim
- SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Muhammad Shahzad Zafar
- School
of Chemical Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
- Department
of Chemical Engineering, University of Engineering
and Technology (Faisalabad Campus), Lahore54890, Pakistan
| | - Seon Hwa Park
- Department
of Chemistry, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Jaecheol Lee
- School
of Pharmacy, Sungkyunkwan University, Suwon16419, Republic of Korea
- Biomedical
Institute for Convergence at SKKU (BICS), Sungkyunkwan University, Suwon16419, Republic of Korea
- Imnewrun
Inc., Suwon16419, Republic of Korea
- Department
of Biopharmaceutical Convergence, Sungkyunkwan
University, Suwon16419, Republic of Korea
| | - Heeyeop Chae
- School
of Chemical Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Wan Soo Yun
- Department
of Chemistry, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Young Dok Kim
- Department
of Chemistry, Sungkyunkwan University, Suwon16419, Republic of Korea
| | - Yong Ho Kim
- SKKU
Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon16419, Republic of Korea
- Department
of Chemistry, Sungkyunkwan University, Suwon16419, Republic of Korea
- Imnewrun
Inc., Suwon16419, Republic of Korea
- Department
of Nano Engineering, Sungkyunkwan University, Suwon16419, Republic of Korea
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3
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Liang X, Zhang A, Sun W, Lei J, Liu X, Tang Z, Chen H. Vascular cell behavior on glycocalyx-mimetic surfaces: Simultaneous mimicking of the chemical composition and topographical structure of the vascular endothelial glycocalyx. Colloids Surf B Biointerfaces 2022; 212:112337. [PMID: 35051794 DOI: 10.1016/j.colsurfb.2022.112337] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 01/05/2022] [Accepted: 01/12/2022] [Indexed: 10/19/2022]
Abstract
The endothelial glycocalyx is a carbohydrate-rich layer overlying the outermost surface of endothelial cells. It mediates intercellular interactions by specific chemical compositions (e.g., proteoglycans containing glycosaminoglycan (GAG) side chains) and micro/nanotopography. Inspired by the endothelial glycocalyx, we fabricated a series of glycocalyx-mimetic surfaces with tunable chemical compositions (GAG-like polymers with different functional units) and topographical structures (micro/nanopatterns with pillars different in size). The combination of micro/nanopatterns and GAG-like polymers was flexibly and precisely controlled by replica molding using silicon templates (Si templates) and visible light-initiated polymerization. Human umbilical vein endothelial cells (HUVECs) and human umbilical vein smooth muscle cells (HUVSMCs) were suppressed on surfaces modified with polymers of 2-methacrylamido glucopyranose (MAG) but promoted on surfaces modified with polymers of sodium 4-vinyl-benzenesulfonate (SS) and copolymers of SS and MAG. Surface micro/nanopatterns showed highly complicated effects on surfaces grafted with different GAG-like polymers. Moreover, the spread of HUVSMCs was highly promoted on all flat/patterned surfaces containing sulfonate units, and the elongation effect was stronger on surfaces with smaller pillars. On all the flat/patterned surfaces modified with GAG-like polymers, the adsorption of human vascular endothelial growth factor (VEGF) and human basic fibroblast growth factor (bFGF) was improved, and the amount of VEGF and bFGF absorbed on patterned surfaces containing sulfonate units decreased with pattern dimensions. The decreasing trend of VEGF and bFGF adsorption was in accordance with HUVEC density, suggesting that glycocalyx-mimetic surfaces influence the adsorption of VEGF and bFGF and further influence the growth behavior of vascular cells.
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Affiliation(s)
- Xinyi Liang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China
| | - Aiyang Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China
| | - Wei Sun
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China
| | - Jiao Lei
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China
| | - Xiaoli Liu
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China.
| | - Zengchao Tang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China; Jiangsu Biosurf Biotech Company Ltd., Building 26, Dongjing Industrial Square, No. 1, Jintian Road, Suzhou Industrial Park, Suzhou 215123, PR China
| | - Hong Chen
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou 215123, PR China
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4
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Wang Y, Xu X, Chen X, Li J. Multifunctional Biomedical Materials Derived from Biological Membranes. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 34:e2107406. [PMID: 34739155 DOI: 10.1002/adma.202107406] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/24/2021] [Indexed: 02/06/2023]
Abstract
The delicate structure and fantastic functions of biological membranes are the successful evolutionary results of a long-term natural selection process. Their excellent biocompatibility and biofunctionality are widely utilized to construct multifunctional biomedical materials mainly by directly camouflaging materials with single or mixed biological membranes, decorating or incorporating materials with membrane-derived vesicles (e.g., exosomes), and designing multifunctional materials with the structure/functions of biological membranes. Here, the structure-function relationship of some important biological membranes and biomimetic membranes are discussed, such as various cell membranes, extracellular vesicles, and membranes from bacteria and organelles. Selected literature examples of multifunctional biomaterials derived from biological membranes for biomedical applications, such as drug- and gene-delivery systems, tissue-repair scaffolds, bioimaging, biosensors, and biological detection, are also highlighted. These designed materials show excellent properties, such as long circulation time, disease-targeted therapy, excellent biocompatibility, and selective recognition. Finally, perspectives and challenges associated with the clinical applications of biological-membrane-derived materials are discussed.
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Affiliation(s)
- Yuemin Wang
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Xinyuan Xu
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
| | - Xingyu Chen
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
- College of Medicine Southwest Jiaotong University Chengdu 610003 China
| | - Jianshu Li
- College of Polymer Science and Engineering State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 P. R. China
- State Key Laboratory of Oral Diseases West China Hospital of Stomatology Med‐X Center for Materials Sichuan University Chengdu 610041 China
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5
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Zheng L, Luo Y, Chen K, Zhang Z, Chen G. Highly Branched Gradient Glycopolymer: Enzyme-Assisted Synthesis and Enhanced Bacteria-Binding Ability. Biomacromolecules 2020; 21:5233-5240. [DOI: 10.1021/acs.biomac.0c01311] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lifang Zheng
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou 215006, P. R. China
| | - Yan Luo
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Kui Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou 215006, P. R. China
| | - Zexin Zhang
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Gaojian Chen
- Center for Soft Condensed Matter Physics and Interdisciplinary Research, School of Physical Science and Technology, Soochow University, Suzhou 215006, P. R. China
- State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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6
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Ribeiro JPM, Mendonça PV, Coelho JFJ, Matyjaszewski K, Serra AC. Glycopolymer Brushes by Reversible Deactivation Radical Polymerization: Preparation, Applications, and Future Challenges. Polymers (Basel) 2020; 12:E1268. [PMID: 32492977 PMCID: PMC7362234 DOI: 10.3390/polym12061268] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 12/27/2022] Open
Abstract
The cellular surface contains specific proteins, also known as lectins, that are carbohydrates receptors involved in different biological events, such as cell-cell adhesion, cell recognition and cell differentiation. The synthesis of well-defined polymers containing carbohydrate units, known as glycopolymers, by reversible deactivation radical polymerization (RDRP) methods allows the development of tailor-made materials with high affinity for lectins because of their multivalent interaction. These polymers are promising candidates for the biomedical field, namely as novel diagnostic disease markers, biosensors, or carriers for tumor-targeted therapy. Although linear glycopolymers are extensively studied for lectin recognition, branched glycopolymeric structures, such as polymer brushes can establish stronger interactions with lectins. This specific glycopolymer topology can be synthesized in a bottlebrush form or grafted to/from surfaces by using RDRP methods, allowing a precise control over molecular weight, grafting density, and brush thickness. Here, the preparation and application of glycopolymer brushes is critically discussed and future research directions on this topic are suggested.
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Affiliation(s)
- Jessica P. M. Ribeiro
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Patrícia V. Mendonça
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Jorge F. J. Coelho
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
| | - Krzysztof Matyjaszewski
- Department of Materials Science & Engineering, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213, USA;
| | - Arménio C. Serra
- Department of Chemical Engineering, Centre for Mechanical Engineering, Materials and Processes, University of Coimbra, Rua Sílvio Lima-Polo II, 3030-790 Coimbra, Portugal; (J.P.M.R.); (J.F.J.C.)
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7
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Low Fouling, Peptoid-Coated Polysulfone Hollow Fiber Membranes-the Effect of Grafting Density and Number of Side Chains. Appl Biochem Biotechnol 2019; 191:824-837. [PMID: 31872336 DOI: 10.1007/s12010-019-03218-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/05/2019] [Indexed: 10/25/2022]
Abstract
The development of low fouling membranes to minimize protein adsorption has relevance in various biomedical applications. Here, electrically neutral peptoids containing 2-methoxyethyl glycine (NMEG) side chains were attached to polysulfone hollow fiber membranes via polydopamine. The number of side chains and grafting density were varied to determine the effect on coating properties and the ability to prevent fouling. NMEG peptoid coatings have high hydrophilicity compared to unmodified polysulfone membranes. The extent of biofouling was evaluated using bovine serum albumin, as well as platelet adhesion. The results suggest that both the number of side chains and grafting density play a role in the surface properties that drive biofouling. Protein adsorption decreased with increasing peptoid grafting density and is lowest above a critical grafting density specific to peptoid chain length. Our findings show that the optimization of grafting density and hydration of the surface are important factors for achieving the desired antifouling performance.
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8
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Ye H, Han M, Huang R, Schmidt TA, Qi W, He Z, Martin LL, Jay GD, Su R, Greene GW. Interactions between Lubricin and Hyaluronic Acid Synergistically Enhance Antiadhesive Properties. ACS APPLIED MATERIALS & INTERFACES 2019; 11:18090-18102. [PMID: 31026132 DOI: 10.1021/acsami.9b01493] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Preventing the unwanted adsorption of proteins and cells at articular cartilage surfaces plays a critical role in maintaining healthy joints and avoiding degenerative diseases such as osteoarthritis. Immobilized at the surface of healthy articular cartilage is a thin, interfacial layer of macromolecules consisting mainly of hyaluronic acid (HA) and lubricin (LUB; a.k.a. PRG4) that is believed to form a co-adsorbed, composite film now known to exhibit synergistic tribological properties. Bioinspired by the composition of cartilage surfaces, composite layers of HA and LUB were grafted to Au surfaces and the antiadhesive properties were assessed using surface plasmon resonance and quartz crystal microbalance. A clear synergistic enhancement in antiadhesive properties was observed in the composite films relative to grafted HA and LUB layers alone. Atomic force microscopy (AFM) normal force measurements provide insight into the architecture of the HA/LUB composite layer and implicate a strong contribution of hydrophobic interactions in the binding of LUB end-domains directly to HA chains. These AFM force measurements indicate that the adhesion of LUB to HA is strong and indicate that the hydrophobic coupling of LUB to HA shields the hydrophobic domains in these molecules from interactions with other proteins or molecules.
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Affiliation(s)
| | - Mingyu Han
- Institute of Frontier Materials, Australian Centre of Excellence in Electromaterials Science , Deakin University , 75 Pigdons Road , Waurn Ponds , VIC 3216 , Australia
| | | | - Tannin A Schmidt
- Biomedical Engineering Department , University of Connecticut , 263 Farmington Avenue , Farmington , Connecticut 06030 , United States
| | | | | | - Lisandra L Martin
- School of Chemistry , Monash University , Wellington Road , Clayton , VIC 3800 , Australia
| | - Gregory D Jay
- Department of Emergency Medicine, Warren Alpert Medical School, Division of Biomedical Engineering, School of Engineering , Brown University , Providence , Rhode Island 02912 , United States
| | | | - George W Greene
- Institute of Frontier Materials, Australian Centre of Excellence in Electromaterials Science , Deakin University , 75 Pigdons Road , Waurn Ponds , VIC 3216 , Australia
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9
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Hadjicharalambous C, Flouraki C, Narain R, Chatzinikolaidou M, Vamvakaki M. Controlling pre-osteoblastic cell adhesion and spreading on glycopolymer brushes of variable film thickness. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:98. [PMID: 29946888 DOI: 10.1007/s10856-018-6112-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 06/18/2018] [Indexed: 06/08/2023]
Abstract
Controlling the cell behavior on biocompatible polymer surfaces is critical for the development of suitable medical implant coatings as well as in anti-adhesive applications. Synthetic glycopolymer brushes, based on sugar methacrylate monomers have been reported as robust surfaces to resist protein adsorption and cell adhesion. In this study, poly(D-gluconamidoethyl methacrylate) (PGAMA) brushes of various chain lengths were synthesized directly from initiator functionalized glass substrates using surface-initiated atom transfer radical polymerization. The glycopolymer film thicknesses were determined by ellipsometry, whereas the wettability and the morphology of the surfaces were characterized by static water contact angle measurements and atomic force microscopy, respectively. Stable, grafted films with thicknesses in the dry state between 4 and 20 nm and of low roughness (~1 nm) were obtained by varying the polymerization time. Cell experiments with MC3T3-E1 pre-osteoblasts cultured on the PGAMA brushes were performed to examine the effect of film thickness on the cell morphology, cytoskeleton organization and growth. The results revealed good cell spreading and proliferation on PGAMA layers of low film thickness, whereas cell adhesion was prevented on polymer films with thickness higher than ~10 nm, indicating their potential use in medical implants and anti-adhesive surfaces, respectively.
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Affiliation(s)
- Chrystalleni Hadjicharalambous
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion, 711 10, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion, 710 03, Crete, Greece
| | - Chara Flouraki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion, 711 10, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion, 710 03, Crete, Greece
| | - Ravin Narain
- Department of Chemical and Materials Engineering, University of Alberta, Edmonton, T6G 1H9, Alberta, Canada
| | - Maria Chatzinikolaidou
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion, 711 10, Crete, Greece
- Department of Materials Science and Technology, University of Crete, Heraklion, 710 03, Crete, Greece
| | - Maria Vamvakaki
- Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion, 711 10, Crete, Greece.
- Department of Materials Science and Technology, University of Crete, Heraklion, 710 03, Crete, Greece.
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10
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Li Y, Xu Y, Fleischer CC, Huang J, Lin R, Yang L, Mao H. Impact of Anti-Biofouling Surface Coatings on the Properties of Nanomaterials and Their Biomedical Applications. J Mater Chem B 2018; 6:9-24. [PMID: 29479429 PMCID: PMC5821433 DOI: 10.1039/c7tb01695f] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Understanding and subsequently controlling non-specific interactions between engineered nanomaterials and biological environment have become increasingly important for further developing and advancing nanotechnology for biomedical applications. Such non-specific interactions, also known as the biofouling effect, mainly associate with the adsorption of biomolecules (such as proteins, DNAs, RNAs, and peptides) onto the surface of nanomaterials and the adhesion or uptake of nanomaterials by various cells. By altering the surface properties of nanomaterials the biofouling effect can lead to in situ changes of physicochemical properties, pharmacokinetics, functions, and toxicity of nanomaterials. This review provides discussions on the current understanding of the biofouling effect, the factors that affect the non-specific interactions associated with biofouling, and the impact of the biofouling effect on the performances and functions of nanomaterials. An overview of the development and applications of various anti-biofouling coating materials to preserve and improve the properties and functions of engineered nanomaterials for intended biomedical applications is also provided.
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Affiliation(s)
- Yuancheng Li
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Yaolin Xu
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Candace C Fleischer
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Jing Huang
- Vascular Biology Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Run Lin
- Department of Radiology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong 510080, People's Republic of China
| | - Lily Yang
- Department of Surgery, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Hui Mao
- Department of Radiology and Imaging Sciences, Emory University School of Medicine, Atlanta, GA 30322, USA
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11
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Kursun TT, Cimen D, Caykara T. Glycopolymer brushes with specific protein recognition property. J Appl Polym Sci 2017. [DOI: 10.1002/app.45238] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Dilek Cimen
- Department of Chemistry; Faculty of Science, Gazi University; 06500 Besevler Ankara Turkey
| | - Tuncer Caykara
- Department of Chemistry; Faculty of Science, Gazi University; 06500 Besevler Ankara Turkey
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12
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Zoppe JO, Ataman NC, Mocny P, Wang J, Moraes J, Klok HA. Surface-Initiated Controlled Radical Polymerization: State-of-the-Art, Opportunities, and Challenges in Surface and Interface Engineering with Polymer Brushes. Chem Rev 2017; 117:1105-1318. [PMID: 28135076 DOI: 10.1021/acs.chemrev.6b00314] [Citation(s) in RCA: 603] [Impact Index Per Article: 86.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The generation of polymer brushes by surface-initiated controlled radical polymerization (SI-CRP) techniques has become a powerful approach to tailor the chemical and physical properties of interfaces and has given rise to great advances in surface and interface engineering. Polymer brushes are defined as thin polymer films in which the individual polymer chains are tethered by one chain end to a solid interface. Significant advances have been made over the past years in the field of polymer brushes. This includes novel developments in SI-CRP, as well as the emergence of novel applications such as catalysis, electronics, nanomaterial synthesis and biosensing. Additionally, polymer brushes prepared via SI-CRP have been utilized to modify the surface of novel substrates such as natural fibers, polymer nanofibers, mesoporous materials, graphene, viruses and protein nanoparticles. The last years have also seen exciting advances in the chemical and physical characterization of polymer brushes, as well as an ever increasing set of computational and simulation tools that allow understanding and predictions of these surface-grafted polymer architectures. The aim of this contribution is to provide a comprehensive review that critically assesses recent advances in the field and highlights the opportunities and challenges for future work.
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Affiliation(s)
- Justin O Zoppe
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Nariye Cavusoglu Ataman
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Piotr Mocny
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Jian Wang
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - John Moraes
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimiques, Laboratoire des Polymères Bâtiment MXD, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Station 12 CH-1015 Lausanne, Switzerland
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13
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Mahmoudi N, Reed L, Moix A, Alshammari N, Hestekin J, Servoss SL. PEG-mimetic peptoid reduces protein fouling of polysulfone hollow fibers. Colloids Surf B Biointerfaces 2017; 149:23-29. [DOI: 10.1016/j.colsurfb.2016.09.038] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Revised: 09/20/2016] [Accepted: 09/26/2016] [Indexed: 01/15/2023]
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14
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Terada Y, Seto H, Hoshino Y, Murakami T, Shinohara S, Tamada K, Miura Y. SPR study for analysis of a water-soluble glycopolymer interface and molecular recognition properties. Polym J 2016. [DOI: 10.1038/pj.2016.99] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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16
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Lepoittevin B, Costa L, Pardoue S, Dragoé D, Mazerat S, Roger P. Hydrophilic PET surfaces by aminolysis and glycopolymer brushes chemistry. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28148] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bénédicte Lepoittevin
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
| | - Ludovic Costa
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
| | - Sylvain Pardoue
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
| | - Diana Dragoé
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
| | - Sandra Mazerat
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
| | - Philippe Roger
- Institut de Chimie Moléculaire et des Matériaux d'Orsay (ICMMO) UMR 8182, Univ Paris Sud, CNRS, Université Paris-Saclay; Orsay 91405 France
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17
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Zaitouna AJ, Joyce J, Cerny RL, Dussault PH, Lai RY. Comparison of Mannose, Ethylene Glycol, and Methoxy-Terminated Diluents on Specificity and Selectivity of Electrochemical Peptide-Based Sensors. Anal Chem 2015; 87:6966-73. [PMID: 26057465 DOI: 10.1021/acs.analchem.5b01759] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report the synthesis and application of three new antifouling diluents for the fabrication of an E-PB HIV sensor. Among the three thiolated antifouling diluents used in this study, the methoxy-terminated diluent (C6-MEG) is the most effective in alleviating both nonspecific binding and adsorption of matrix contaminants onto the sensor surface, especially when compared to the mannose- (C6-MAN) and ethylene-glycol-terminated (C6-EG) diluents. The sensor fabricated with C6-MEG has a specificity factor (∼13.5) substantially higher than the sensor passivated with only 6-mercapto-1-hexanol (∼1.5). It is functional even when employed directly in 25% serum, an achievement that has not been observed with this class of E-PB sensors. More importantly, incorporation of these antifouling diluents has negligible impact on other important sensor properties such as sensitivity and binding kinetics. This sensor passivation strategy is versatile and can potentially be used with other E-PB sensors, as well as surface-based sensors that utilize thiol-gold self-assembled monolayer chemistry.
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Affiliation(s)
- Anita J Zaitouna
- †Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
| | - Jesse Joyce
- †Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
| | - Ronald L Cerny
- †Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
| | - Patrick H Dussault
- †Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
| | - Rebecca Y Lai
- †Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, United States
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18
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Hung WC, Cherng JY. Self-assembly of PEG-oligonucleotide-based matrices and lipoplexes as DNase-responsive delivery systems. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.04.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Dong J, Bruening ML. Functionalizing Microporous Membranes for Protein Purification and Protein Digestion. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2015; 8:81-100. [PMID: 26001953 DOI: 10.1146/annurev-anchem-071114-040255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This review examines advances in the functionalization of microporous membranes for protein purification and the development of protease-containing membranes for controlled protein digestion prior to mass spectrometry analysis. Recent studies confirm that membranes are superior to bead-based columns for rapid protein capture, presumably because convective mass transport in membrane pores rapidly brings proteins to binding sites. Modification of porous membranes with functional polymeric films or TiO₂ nanoparticles yields materials that selectively capture species ranging from phosphopeptides to His-tagged proteins, and protein-binding capacities often exceed those of commercial beads. Thin membranes also provide a convenient framework for creating enzyme-containing reactors that afford control over residence times. With millisecond residence times, reactors with immobilized proteases limit protein digestion to increase sequence coverage in mass spectrometry analysis and facilitate elucidation of protein structures. This review emphasizes the advantages of membrane-based techniques and concludes with some challenges for their practical application.
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Affiliation(s)
- Jinlan Dong
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824;
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20
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Chen C, Xu H, Qian YC, Huang XJ. Glycosylation of polyphosphazenes by thiol-yne click chemistry for lectin recognition. RSC Adv 2015. [DOI: 10.1039/c4ra14012e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Strong carbohydrate–lectin binding interactions in biological systems can be mimicked through the synthesis of glucose containing macromolecules, particularly glycosylated polymers.
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Affiliation(s)
- Chen Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Huang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yue-Cheng Qian
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiao-Jun Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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21
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Krishnamoorthy M, Hakobyan S, Ramstedt M, Gautrot JE. Surface-initiated polymer brushes in the biomedical field: applications in membrane science, biosensing, cell culture, regenerative medicine and antibacterial coatings. Chem Rev 2014; 114:10976-1026. [PMID: 25353708 DOI: 10.1021/cr500252u] [Citation(s) in RCA: 393] [Impact Index Per Article: 39.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mahentha Krishnamoorthy
- Institute of Bioengineering and ‡School of Engineering and Materials Science, Queen Mary University of London , Mile End Road, London E1 4NS, United Kingdom
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22
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Yu K, Mei Y, Hadjesfandiari N, Kizhakkedathu JN. Engineering biomaterials surfaces to modulate the host response. Colloids Surf B Biointerfaces 2014; 124:69-79. [PMID: 25193153 DOI: 10.1016/j.colsurfb.2014.08.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/29/2014] [Accepted: 08/09/2014] [Indexed: 12/16/2022]
Abstract
Undesirable host response is responsible for the surface induced thrombus generation, activation of the complement system and the inflammatory reactions by the blood-contacting biomaterials. The surface interaction of biomaterials with different blood components is thought to be the critical factor that dictates the host response to biomaterials. Surface engineering can be utilized as a method to enhance the biocompatibility and tailor the biological response to biomaterials. This review provides a brief account of various polymer brush based approaches used for biomaterials surface modification, both passive and bioactive, to make the material surfaces biocompatible and antibacterial. Initially we discuss the utilization of polymer brushes with different structure and chemistry as a novel strategy to design the surface non-fouling that passively prevent the subsequent biological responses. Further we explore the utility of different bioactive agents including peptides, carbohydrates and proteins which can be conjugated the polymer brush to make the surface actively interact with the body and modulate the host response. A number of such avenues have also been explored in this review.
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Affiliation(s)
- Kai Yu
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Yan Mei
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Narges Hadjesfandiari
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
| | - Jayachandran N Kizhakkedathu
- Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6 T 1Z3, Canada.
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23
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Lewitus DY, Smith KL, Landers J, Neimark AV, Kohn J. Bioactive Agarose Carbon-Nanotube Composites are Capable of Manipulating Brain-Implant Interface. J Appl Polym Sci 2014; 131:10.1002/app.40297. [PMID: 25382868 PMCID: PMC4221857 DOI: 10.1002/app.40297] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Composite electrodes made of the polysaccharide agarose and carbon nanotube fibers (A-CNE) have shown potential to be applied as tissue-compatible, micro-electronic devices. In the present work, A-CNEs were functionalized using neuro-relevant proteins (laminin and alpha-melanocyte stimulating hormone) and implanted in brain tissue for 1 week (acute response) and 4 weeks (chronic response). Qualitative and quantitative analysis of neuronal and immunological responses revealed significant changes in immunological response to implanted materials depending on the type of biomolecule used. The potential to manipulate tissue response through the use of an anti-inflammatory protein, alpha-melanocyte stimulating hormone, was shown in the reduction of astroglia presence near the implant site during the glial scar formation. These results suggest that A-CNEs, which are soft, flexible, and easily made bioactive, have the ability to modify brain tissue response through surface modification as a function of the biomolecule used.
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Affiliation(s)
- Dan Y. Lewitus
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, 145 Bevier Rd., Piscataway, NJ 08854, USA
| | - Karen L. Smith
- Wadsworth Center, New York State Department of Health, Empire State Plaza, Albany, NY 12201, USA
| | - John Landers
- Department of Chemical and Biochemical Engineering Rutgers, State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Alexander V. Neimark
- Department of Chemical and Biochemical Engineering Rutgers, State University of New Jersey, Piscataway, NJ, 08854, USA
| | - Joachim Kohn
- New Jersey Center for Biomaterials, Rutgers, The State University of New Jersey, 145 Bevier Rd., Piscataway, NJ 08854, USA
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24
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Effect of peptide secondary structure on adsorption and adsorbed film properties on end-grafted polyethylene oxide layers. Acta Biomater 2014; 10:56-66. [PMID: 24060880 DOI: 10.1016/j.actbio.2013.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/09/2013] [Accepted: 09/13/2013] [Indexed: 01/12/2023]
Abstract
Poly-l-lysine (PLL), in α-helix or β-sheet configuration, was used as a model peptide for investigating the effect of secondary structures on adsorption events to poly(ethylene oxide) (PEO) modified surfaces formed using θ solvents. Circular dichroism results showed that the secondary structure of PLL persisted upon adsorption to Au and PEO modified Au surfaces. Quartz crystal microbalance with dissipation (QCM-D) was used to characterize the chemisorbed PEO layer in different solvents (θ and good solvents), as well as the sequential adsorption of PLL in different secondary structures (α-helix or β-sheet). QCM-D results suggest that chemisorption of PEO 750 and 2000 from θ solutions led to brushes 3.8 ± 0.1 and 4.5 ± 0.1 nm thick with layer viscosities of 9.2 ± 0.8 and 4.8 ± 0.5 cP, respectively. The average number of H2O per ethylene oxides, while in θ solvent, was determined as ~0.9 and ~1.2 for the PEO 750 and 2000 layers, respectively. Upon immersion in good solvent (as used for PLL adsorption experiments), the number of H2O per ethylene oxides increased to ~1.5 and ~2.0 for PEO 750 and 2000 films, respectively. PLL adsorbed masses for α-helix and β-sheet on Au sensors was 231 ± 5 and 1087 ± 14 ng cm(-2), with layer viscosities of 2.3 ± 0.1 and 1.2 ± 0.1 cP, respectively; suggesting that the α-helix layer was more rigid, despite a smaller adsorbed mass, than that of β-sheet layers. The PEO 750 layer reduced PLL adsorbed amounts to ~10 and 12% of that on Au for α-helices and β-sheets respectively. The PLL adsorbed mass to PEO 2000 layers dropped to ~12% and 4% of that on Au, for α-helix and β-sheet respectively. No significant differences existed for the viscosities of adsorbed α-helix and β-sheet PLL on PEO surfaces. These results provide new insights into the fundamental understanding of the effects of secondary structures of peptides and proteins on their surface adsorption.
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25
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Yang Q, Mi B. Nanomaterials for membrane fouling control: accomplishments and challenges. Adv Chronic Kidney Dis 2013; 20:536-55. [PMID: 24206605 DOI: 10.1053/j.ackd.2013.08.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 08/21/2013] [Indexed: 12/13/2022]
Abstract
We report a review of recent research efforts on incorporating nanomaterials-including metal/metal oxide nanoparticles, carbon-based nanomaterials, and polymeric nanomaterials-into/onto membranes to improve membrane antifouling properties in biomedical or potentially medical-related applications. In general, nanomaterials can be incorporated into/onto a membrane by blending them into membrane fabricating materials or by attaching them to membrane surfaces via physical or chemical approaches. Overall, the fascinating, multifaceted properties (eg, high hydrophilicity, superparamagnetic properties, antibacterial properties, amenable functionality, strong hydration capability) of nanomaterials provide numerous novel strategies and unprecedented opportunities to fully mitigate membrane fouling. However, there are still challenges in achieving a broader adoption of nanomaterials in the membrane processes used for biomedical applications. Most of these challenges arise from the concerns over their long-term antifouling performance, hemocompatibility, and toxicity toward humans. Therefore, rigorous investigation is still needed before the adoption of some of these nanomaterials in biomedical applications, especially for those nanomaterials proposed to be used in the human body or in contact with living tissue/body fluids for a long period of time. Nevertheless, it is reasonable to predict that the service lifetime of membrane-based biomedical devices and implants will be prolonged significantly with the adoption of appropriate fouling control strategies.
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26
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Binazadeh M, Faghihnejad A, Unsworth LD, Zeng H. Understanding the Effect of Secondary Structure on Molecular Interactions of Poly-l-lysine with Different Substrates by SFA. Biomacromolecules 2013; 14:3498-508. [DOI: 10.1021/bm400837t] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mojtaba Binazadeh
- Department of Chemical
and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2V4, Canada
| | - Ali Faghihnejad
- Department of Chemical
and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2V4, Canada
| | - Larry D. Unsworth
- Department of Chemical
and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2V4, Canada
- National Institute of Nanotechnology, Edmonton, Alberta, T6G 2M9, Canada
| | - Hongbo Zeng
- Department of Chemical
and Materials Engineering, University of Alberta, Edmonton, Alberta, T6G 2V4, Canada
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27
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Ahmed M, Wattanaarsakit P, Narain R. Recent advances in the preparation of glycopolymer bioconjugates. Eur Polym J 2013. [DOI: 10.1016/j.eurpolymj.2013.06.025] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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28
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Kasuya M, Taniguchi T, Motokawa R, Kohri M, Kishikawa K, Nakahira T. Quantification of ATRP initiator density on polymer latex particles by fluorescence labeling technique using copper-catalyzed azide-alkyne cycloaddition. ACTA ACUST UNITED AC 2013. [DOI: 10.1002/pola.26800] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Masakatsu Kasuya
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University; 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Tatsuo Taniguchi
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University; 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Ryuhei Motokawa
- Actinide Coordination Chemistry Group, Quantum Beam Science Directorate (QuBS), Japan Atomic Energy Agency (JAEA); Ibaraki 319-1195 Japan
| | - Michinari Kohri
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University; 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Keiki Kishikawa
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University; 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
| | - Takayuki Nakahira
- Division of Applied Chemistry and Biotechnology, Graduate School of Engineering, Chiba University; 1-33 Yayoi-cho, Inage-ku Chiba 263-8522 Japan
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29
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Effect of peptide secondary structure on adsorption and adsorbed film properties. Acta Biomater 2013; 9:6403-13. [PMID: 23376129 DOI: 10.1016/j.actbio.2013.01.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2012] [Revised: 01/07/2013] [Accepted: 01/12/2013] [Indexed: 01/15/2023]
Abstract
Protein adsorption at the biomaterial-tissue interface is of utmost importance to the widespread application of engineered materials. The present study asked what role the secondary structures of peptides play in their adsorption, as well as how these structures affect the physicochemical properties of the final adsorbed layer. To this end, α-helices and β-sheets were induced in poly-l-lysine, and their adsorption to Au surfaces was monitored using quartz crystal microbalance with dissipation. It was observed that secondary structures played an important role in governing both the adsorption process and the final film properties. Higher initial adsorption rates were obtained for α-helices compared with β-sheets, regardless of solution salt concentration. Adsorption half-time for β-sheets was greater than that for α-helices, and the final amount adsorbed on β-sheet was significantly higher than that on α-helix. The adsorbed amount and adsorption half-time decreased with increasing salt concentration, suggesting that electrostatic interactions played a role. It was found that the differences in Zeta potential coupled with the apparent effect of surface contact area differences between α-helix and β-sheet conformations are ultimately responsible for these different peptide adsorption behaviours at the Au interface. The initial adsorption rate of α-helix increased with salt concentrations up to 50mM, whereas β-sheet initial adsorption rates increased with salt concentrations up to 500 mM. Viscosities for films formed from α-helices were about twice those of β-sheets films, regardless of solution ionic strength. It was evident that the peptide secondary structures influence all aspects of their adsorption, as well as affecting the adsorbed film properties.
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30
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Filtration, adsorption and immunodetection of virus using polyelectrolyte multilayer-modified paper. Colloids Surf B Biointerfaces 2013; 101:205-9. [DOI: 10.1016/j.colsurfb.2012.06.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/23/2012] [Accepted: 06/05/2012] [Indexed: 11/20/2022]
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31
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Luo J, Xu ZK. Protein−Carbohydrate Interactions on the Surfaces of Glycosylated Membranes. ACTA ACUST UNITED AC 2012. [DOI: 10.1021/bk-2012-1120.ch011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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32
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Vázquez-Dorbatt V, Lee J, Lin EW, Maynard HD. Synthesis of Glycopolymers by Controlled Radical Polymerization Techniques and Their Applications. Chembiochem 2012; 13:2478-87. [DOI: 10.1002/cbic.201200480] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Indexed: 12/26/2022]
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33
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Zhao X, Su Y, Chen W, Peng J, Jiang Z. Grafting perfluoroalkyl groups onto polyacrylonitrile membrane surface for improved fouling release property. J Memb Sci 2012. [DOI: 10.1016/j.memsci.2012.05.075] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Meng XL, Fang Y, Wan LS, Huang XJ, Xu ZK. Glycopolymer brushes for the affinity adsorption of RCA120: effects of thickness, grafting density, and epitope density. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13616-13623. [PMID: 22950871 DOI: 10.1021/la302389e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The interactions between glycopolymer brushes and lectin are very important for the development of affinity membrane chromatography in protein separation. Here, we report the combination of surface-initiated atom transfer radical polymerization (SI-ATRP) and surface plasmon resonance (SPR) to investigate the relationship between the structure of glycopolymer brushes and the affinity adsorption of lectin. The glycopolymer brushes were fabricated from self-assembly of 11-mercapto-1-undecanol (MUD)/1-undecanethiol (UDT) mixture, immobilization of ATRP initiators, and then SI-ATRP of 2-lactobionamidoethyl methacrylate (LAMA). Brush thickness and grafting density were adjusted by controlling polymerization time and thiol ratio in MUD/UDT mixture, respectively. Sugar epitope density was also controlled through copolymerization of 2-hydroxylethyl methacrylate (HEMA) with LAMA. Ricinus communis agglutinin (RCA(120)), one kind of lectin that can bind galactose specifically, was chosen to study the effects of brush architectures on lectin adsorption. SPR results indicate not only the thickness but also the grafting density and the epitope density of glycopolymer brushes can achieve the best performance of sugar cluster effect in affinity adsorption of lectin. In addition, the mass transport effect is crucial in the adsorption process. We propose that it is important to keep the balance between the sugar cluster effect and the mass transport effect in the preparation of high-performance affinity membrane chromatography.
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Affiliation(s)
- Xiang-Lin Meng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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35
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Fang Y, Xu W, Meng XL, Ye XY, Wu J, Xu ZK. Poly(2-hydroxyethyl methacrylate) brush surface for specific and oriented adsorption of glycosidases. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13318-13324. [PMID: 22921196 DOI: 10.1021/la302738s] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We present a detailed picture to screen general ligands from simple chemicals for fabricating affinity surface to glycosidase enzymes. The surface was constructed by grafting poly(2-hydroxyethyl methacrylate) (PHEMA) brush on SPR gold chip via surface-initiated atom-transfer radical polymerization, after which poly(methoxyethyl methacrylate) (PMEMA) and poly(oligo(ethylene glycol) methacrylate) (POEGMA) brushes were also prepared for comparison. SPR measurements were adopted to monitor the early-stage adsorption of two glycosidases and three other typical proteins. PHEMA resists the adsorption of lysozyme, bovine serum albumin, and fibrinogen, while it is capable of specifically adsorbing β-glucosidase (GLU) and β-galactosidase (GAL). These are quite different from the nonspecific adsorption of PMEMA and the anti-nonspecific adsorption of POEGMA to the studied proteins, because PHEMA is the acceptor substrate of the glycosidases. About 69.6 and 93.7 ng/cm(2) of GAL and GLU are adsorbed on the PHEMA brush surface, of which more than 49.6 ng/cm(2) is remained after washing with PBS. The specific adsorption process is appropriately described by Freundlich isothermal model rather than Langmuir one, and is also indicated to be spontaneous, endothermic, and entropy driven through thermodynamic studies. Taking into account all stated results above, we propose that molecular recognition takes place between the hydroxyl groups of PHEMA and the active sites of glycosidases, which subsequently enables the oriented adsorption of glycosidases on the brush surface. The adsorbed enzyme can be effectively eluted with 1.0 M aqueous solution of ethanol. Our findings open the door to the further development in the design of novel acceptor substrate-ligand affinity chromatography for enzyme purification.
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Affiliation(s)
- Yan Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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Increased adsorption of histidine-tagged proteins onto tissue culture polystyrene. Colloids Surf B Biointerfaces 2012; 92:286-92. [DOI: 10.1016/j.colsurfb.2011.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Revised: 12/02/2011] [Accepted: 12/02/2011] [Indexed: 11/20/2022]
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Akkahat P, Mekboonsonglarp W, Kiatkamjornwong S, Hoven VP. Surface-grafted poly(acrylic acid) brushes as a precursor layer for biosensing applications: effect of graft density and swellability on the detection efficiency. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:5302-5311. [PMID: 22329634 DOI: 10.1021/la204542e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Carboxyl groups along poly(acrylic acid) (PAA) brushes attached to the surface of a gold-coated substrate served as the precursor moieties for the covalent immobilization of amino-functionalized biotin or bovine serum albumin (BSA) to form a sensing probe for streptavidin (SA) or anti-BSA detection, respectively. Surface-grafted PAA brushes were obtained by acid hydrolysis of poly(tert-butyl acrylate) brushes, formerly prepared by surface-initiated atom transfer radical polymerization of tert-butyl acrylate. As determined by surface plasmon resonance, the PAA brushes immobilized with functionalized biotin or BSA probes not only showed good binding with the designated target analytes but also maintained a high resistance to nonspecific protein adsorption, especially those PAA brushes with a high surface graft density. Although the probe binding capacity can be raised as a function of the graft density of the PAA brushes or the amount of carboxyl groups along the PAA chains, the accessibility of the target analyte to the immobilized probe was limited at the high graft density of the PAA brushes. The effect was far more apparent for the BSA-anti-BSA probe-analyte pair than for the much smaller biotin-SA probe-analyte pair. The impact of the swellability of the PAA brushes, as tailored by the degree of carboxyl group activation, on both the sensing probe immobilization and analyte detection was also addressed. This investigation demonstrated that PAA brushes having a defined graft density have a promising potential as a precursor layer for biosensing applications.
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Affiliation(s)
- Piyaporn Akkahat
- Program in Petrochemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
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Yu K, Lai BFL, Kizhakkedathu JN. Carbohydrate structure dependent hemocompatibility of biomimetic functional polymer brushes on surfaces. Adv Healthc Mater 2012. [PMID: 23184724 DOI: 10.1002/adhm.201100042] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Glycocalyx mimicking glycopolymer brushes presenting mannose, galactose and glucose residues in the pyranose form, similar to those present on cell surfaces, were synthesized on planar substrates (Si wafer, gold chip) and monodispersed polystyrene (PS) particles, and the interaction of blood to these surfaces were studied using various methods with the goal of producing a hemocompatible surface. Surface plasmon resonance (SPR) spectroscopy and gel analyses showed that the total protein adsorption from plasma was greatly reduced, as low as 24.3 ng/cm(2) from undiluted plasma on the glucose carrying brush. The protein adsorption decreased with increasing grafting density of the brushes. It was also found that the protein adsorption varied with the anticoagulant used for blood collection; much higher amount of protein was adsorbed from heparinzied plasma than citrated plasma. Proteomics protein identification analysis revealed that protein adsorption from plasma depended on the type of sugar residue present on the surface as well as the type of anticoagulant. All the three types of glycopolymer brushes showed similar level of platelet activation as that of buffer control irrespective of the nature of carbohydrate residue. However, the number of adhered platelet and their morphology depended on the type of carbohydrate residue present on the brush. On glucose brush, the extent of platelet adhesion and spreading was significantly lowered compared to other brushes. All the glycopolymer brushes were neutral to blood coagulation as indicated by thromboelastography analysis. The glucose brush gave a slightly longer initial coagulation time suggesting that this surface may be more biocompatible. Our data demonstrate that the structure of carbohydrate residue is an important factor in the design of synthetic blood contacting surface based on glycopolymer.
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Affiliation(s)
- Kai Yu
- Centre for Blood Research and Department of Pathology & Laboratory Medicine, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada
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Binazadeh M, Kabiri M, Unsworth LD. Poly(ethylene glycol) and Poly(carboxy betaine) Based Nonfouling Architectures: Review and Current Efforts. ACS SYMPOSIUM SERIES 2012. [DOI: 10.1021/bk-2012-1120.ch028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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40
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Raz SR, Marchesini GR, Bremer MGEG, Colpo P, Garcia CP, Guidetti G, Norde W, Rossi F. Nanopatterned submicron pores as a shield for nonspecific binding in surface plasmon resonance-based sensing. Analyst 2012; 137:5251-9. [DOI: 10.1039/c2an35521c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Olivier A, Meyer F, Raquez JM, Damman P, Dubois P. Surface-initiated controlled polymerization as a convenient method for designing functional polymer brushes: From self-assembled monolayers to patterned surfaces. Prog Polym Sci 2012. [DOI: 10.1016/j.progpolymsci.2011.06.002] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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42
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Zhou D, Li C, Hu Y, Zhou H, Chen J, Zhang Z, Guo T. PLL/pDNA/P(His-co-DMAEL) ternary complexes: assembly, stability and gene delivery. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm30850a] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Zhou D, Li C, Hu Y, Zhou H, Chen J, Zhang Z, Guo T. The effects of a multifunctional oligomer and its incorporation strategies on the gene delivery efficiency of poly(l-lysine). Chem Commun (Camb) 2012; 48:4594-6. [DOI: 10.1039/c2cc31359f] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Akkahat P, Hoven VP. Introducing surface-tethered poly(acrylic acid) brushes as 3D functional thin film for biosensing applications. Colloids Surf B Biointerfaces 2011; 86:198-205. [DOI: 10.1016/j.colsurfb.2011.03.042] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2010] [Revised: 03/07/2011] [Accepted: 03/30/2011] [Indexed: 10/18/2022]
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Hua K, Zhang L, Zhang Z, Guo Y, Guo T. Surface hydrophilic modification with a sugar moiety for a uniform-sized polymer molecularly imprinted for phenobarbital in serum. Acta Biomater 2011; 7:3086-93. [PMID: 21605708 DOI: 10.1016/j.actbio.2011.05.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 04/02/2011] [Accepted: 05/04/2011] [Indexed: 11/26/2022]
Abstract
A uniform-sized polymer molecularly imprinted for phenobarbital, which is surface modified by a sugar moiety, has been prepared through a two-step swelling polymerization method using polystyrene beads as seeds, phenobarbital as the template, 4-vinylpyridine as a functional monomer, ethylene glycol dimethacrylate as a cross-linker and 2-O-meth-acryloyloxyethoxyl-(2,3,4,6- tetra-O-acetyl-β-d-galactopyranosyl)-(1-4)-2,3,6-tri-O-acetyl-β-d-glucopyranoside as a surface-modifying glycomonomer, respectively. After deprotecting the glycopolymer, a surface sugar moiety-modified, hydrophilic, molecularly imprinted polymer for phenobarbital (glyco-MIP) was obtained. The resulting polymer beads were packed into a stainless steel column to evaluate their chromatographic characteristics by high-performance liquid chromatography (HPLC). Good selectivity for phenobarbital was obtained with the glyco-MIP compared to the unmodified molecularly imprinted polymer, which revealed that the recognition sites of phenobarbital were unchanged with sugar moiety surface modification. Furthermore, bovine serum albumin was almost completely recovered from the glyco-MIP column, which indicates that the glyco-MIP materials can be used to separate and analyze drugs in complex samples, such as biological samples. The results of pretreatment with and analysis of phenobarbital in serum suggest that this material can be used to analyze phenobarbital in serum through a pretreatment and reverse-phase HPLC analysis process.
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Eshet I, Freger V, Kasher R, Herzberg M, Lei J, Ulbricht M. Chemical and Physical Factors in Design of Antibiofouling Polymer Coatings. Biomacromolecules 2011; 12:2681-5. [DOI: 10.1021/bm200476g] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Inbal Eshet
- Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel
- Unit of Environmental Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Viatcheslav Freger
- Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel
- Unit of Environmental Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Roni Kasher
- Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel
| | - Moshe Herzberg
- Zuckerberg Institute for Water Research, Ben-Gurion University of the Negev, Sede Boqer Campus 84990, Israel
| | - Jing Lei
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
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Bioinert surface to protein adsorption with higher generation of dendrimer SAMs. Colloids Surf B Biointerfaces 2011; 84:280-4. [DOI: 10.1016/j.colsurfb.2011.01.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2010] [Revised: 01/01/2011] [Accepted: 01/01/2011] [Indexed: 11/19/2022]
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48
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Ayres N. Atom Transfer Radical Polymerization: A Robust and Versatile Route for Polymer Synthesis. POLYM REV 2011. [DOI: 10.1080/15583724.2011.566402] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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49
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Yang Q, Ulbricht M. Cylindrical Membrane Pores with Well-Defined Grafted Linear and Comblike Glycopolymer Layers for Lectin Binding. Macromolecules 2011. [DOI: 10.1021/ma1025972] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qian Yang
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
| | - Mathias Ulbricht
- Lehrstuhl für Technische Chemie II, Universität Duisburg-Essen, 45117 Essen, Germany
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50
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Gooding JJ, Ciampi S. The molecular level modification of surfaces: from self-assembled monolayers to complex molecular assemblies. Chem Soc Rev 2011; 40:2704-18. [DOI: 10.1039/c0cs00139b] [Citation(s) in RCA: 390] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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