201
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Naskar S, Kumaran V, Basu B. On The Origin of Shear Stress Induced Myogenesis Using PMMA Based Lab-on-Chip. ACS Biomater Sci Eng 2017; 3:1154-1171. [PMID: 33429590 DOI: 10.1021/acsbiomaterials.7b00206] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
One of the central themes in cell and tissue engineering is to develop an understanding as to how biophysical cues can influence cell functionality changes. The flow induced shear stress is regarded as one such biophysical cue to influence physiological changes in shear-sensitive tissues, in vivo. The origin of such phenomena is, however, poorly understood. While addressing such an issue, the present work demonstrates the intriguing synergistic effect of shear stress and spatial constraints in inducing aligned growth and differentiation of myoblast cells to myotubes. In a planned set of in vitro experiments, the regulation of laminar flow regime within a narrow window was obtained in a PMMA-based Lab-on-Chip (LOC) device, wherein the murine muscle cells (C2C12), chosen for their phenotypical differentiation stages, were cultured under graded shear conditions. The two factors of shear stress and spatial allowance were decoupled by another two sets of experiments. This aspect has been conclusively established using a PMMA device having a fixed width microchannel with varying shear and an identical amount of shear with different width of channels. On the basis of the extensive analysis of biochemical assays (WST-1, picogreen) together with gene expression using qRT-PCR and cell morphological changes (fluorescence/confocal microscopy), extensive differentiation of the myoblasts into myotubes is found to be dependent on both shear stress and spatial allocation with a maximum at an optimal shear of ca. 16 mPa. Quantitatively, the mRNA expression of myogenic biomarkers, i.e., myogenin, MyoD, and neogenin, exhibited 10- to 50-fold changes at ca. 16 mPa shear flow, compared to that under static conditions. Also, myotube aspect ratio and myotube density are modulated with shear stress and are in commensurate with gene expression changes. The flow cytometry analysis further confirmed that the cell cycle arrest at the G1/G0 phase triggers the onset of myogenesis. Taken together, the present study unambiguously establishes qualitative and quantitative biophysical basis for the origin of myogenesis toward the critical shear stress of murine myoblasts in a microfludic device, in vitro.
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Affiliation(s)
- Sharmistha Naskar
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore-560012, India
| | - V Kumaran
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore-560012, India.,Department of Chemical Engineering, Indian Institute of Science, Bangalore-560012, India
| | - Bikramjit Basu
- Centre for Biosystems Science and Engineering, Indian Institute of Science, Bangalore-560012, India.,Laboratory for Biomaterials, Materials Research Center, Indian Institute of Science, Bangalore-560012, India
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202
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Bauer JW, Xu LC, Vogler EA, Siedlecki CA. Surface dependent contact activation of factor XII and blood plasma coagulation induced by mixed thiol surfaces. Biointerphases 2017; 12:02D410. [PMID: 28514863 PMCID: PMC5435513 DOI: 10.1116/1.4983634] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/27/2017] [Accepted: 05/04/2017] [Indexed: 12/20/2022] Open
Abstract
Studies of the activation of FXII in both platelet poor plasma and in neat buffer solutions were undertaken for a series of mixed thiol self-assembled monolayers spanning a broad range of water wettability. A wide spectrum of carboxyl/methyl-, hydroxyl/methyl-, and amine/methyl-thiol modified surfaces were prepared, characterized, and then utilized as the procoagulant materials in a series of FXII activation studies. X-ray photoelectron spectroscopy was utilized to verify the sample surface's thiol composition and contact angles measured to determine the sample surface's wettability. These samples were then used in in vitro coagulation assays using a 50% mixture of recalcified plasma in phosphate buffered saline. Alternatively, the samples were placed into purified FXII solutions for 30 min to assess FXII activation in neat buffer solution. Plasma coagulation studies supported a strong role for anionic surfaces in contact activation, in line with the traditional models of coagulation, while the activation results in neat buffer solution demonstrated that FXIIa production is related to surface wettability with minimum levels of enzyme activation observed at midrange wettabilities, and no statistically distinguishable differences in FXII activation seen between highly wettable and highly nonwettable surfaces. Results demonstrated that the composition of the solution and the surface properties of the material all contribute to the observation of contact activation, and the activation of FXII is not specific to anionic surfaces as has been long believed.
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Affiliation(s)
- James W Bauer
- Department of Bioengineering, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033
| | - Li-Chong Xu
- Department of Surgery, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033
| | - Erwin A Vogler
- Department of Bioengineering, Pennsylvania State University, University Park, Pennsylvania 16802 and Department of Materials Science and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802
| | - Christopher A Siedlecki
- Department of Bioengineering, Pennsylvania State University College of Medicine, Hershey, Pennsylvania 17033 and Department of Surgery, Pennsylvania State University College of Medicine, 500 University Drive, H151, Hershey, Pennsylvania 17033
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203
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Golda-Cepa M, Kulig W, Cwiklik L, Kotarba A. Molecular Dynamics Insights into Water-Parylene C Interface: Relevance of Oxygen Plasma Treatment for Biocompatibility. ACS APPLIED MATERIALS & INTERFACES 2017; 9:16685-16693. [PMID: 28459527 DOI: 10.1021/acsami.7b03265] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Solid-water interfaces play a vital role in biomaterials science because they provide a natural playground for most biochemical reactions and physiological processes. In the study, fully atomistic molecular dynamics simulations were performed to investigate interactions between water molecules and several surfaces modeling for unmodified and modified parylene C surfaces. The introduction of -OH, -CHO, and -COOH to the surface and alterations in their coverage significantly influence the energetics of interactions between water molecules and the polymer surface. The theoretical studies were complemented with experimental measurements of contact angle, surface free energy, and imaging of osteoblast cells adhesion. Both MD simulations and experiments demonstrate that the optimal interface, in terms of biocompatibility, is obtained when 60% of native -Cl groups of parylene C surface is exchanged for -OH groups. By exploring idealized models of bare and functionalized parylene C, we obtained a unique insight into molecular interactions at the water-polymer interface. The calculated values of interaction energy components (electrostatic and dispersive) correspond well with the experimentally determined values of surface free energy components (polar and dispersive), revealing their optimal ratio for cells adhesion. The results are discussed in the context of controllable tuning and functionalization of implant polymeric coating toward improved biocompatibility.
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Affiliation(s)
- Monika Golda-Cepa
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Krakow, Poland
| | - Waldemar Kulig
- Department of Physics, University of Helsinki , P.O. Box 64, FI-00014 Helsinki, Finland
- Department of Physics, Tampere University of Technology , P.O. Box 692, FI- 33101 Tampere, Finland
| | - Lukasz Cwiklik
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences , Dolejškova 3, Prague 18223, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences , Flemingovo nám. 2, Prague 16610, Czech Republic
| | - Andrzej Kotarba
- Faculty of Chemistry, Jagiellonian University , Ingardena 3, 30-060 Krakow, Poland
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204
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Prysiazhnyi V, Saturnino VFB, Kostov KG. Transferred plasma jet as a tool to improve the wettability of inner surfaces of polymer tubes. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2017. [DOI: 10.1080/1023666x.2016.1277053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Vadym Prysiazhnyi
- Faculty of Engineering, Sao Paulo State University, Guaratingueta, Sao Paulo, Brazil
| | | | - Konstantin G. Kostov
- Faculty of Engineering, Sao Paulo State University, Guaratingueta, Sao Paulo, Brazil
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205
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Torrisi L, Scolaro C, Restuccia N. Wetting ability of biological liquids in presence of metallic nanoparticles. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:63. [PMID: 28251471 DOI: 10.1007/s10856-017-5871-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 02/16/2017] [Indexed: 06/06/2023]
Abstract
The wetting ability of water and of some biological liquids was measured on different biocompatible surfaces with and without different colloidal metals. Insoluble nanoparticles disperse in biological tissues enhance some properties, such as the interface adhesion between two surfaces, the X-ray contrast of medical images and the absorbed dose during radiotherapy treatments. The introduction of nanoparticles in the liquids generally improves the wetting ability and changes other properties of the solution, due to the different distribution of the adhesion forces, to the nature, morphology and concentration of the added nanoparticles. An investigation on the contact angle of the liquid drops, physiological liquids, including the human blood, placed on different substrates (polymers, ceramics and metals) with and without the use of metallic nanoparticles is presented, evaluated and discussed.
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Affiliation(s)
- L Torrisi
- Dottorato di Ricerca in Fisica, Università di Messina, V.le F.S. D'Alcontres 31, S. Agata (ME), 98166, Italy.
| | - C Scolaro
- Dottorato di Ricerca in Fisica, Università di Messina, V.le F.S. D'Alcontres 31, S. Agata (ME), 98166, Italy
| | - N Restuccia
- Dottorato di Ricerca in Fisica, Università di Messina, V.le F.S. D'Alcontres 31, S. Agata (ME), 98166, Italy
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206
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Kuo ZK, Fang MY, Wu TY, Yang T, Tseng HW, Chen CC, Cheng CM. Hydrophilic films: How hydrophilicity affects blood compatibility and cellular compatibility. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21820] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Zong-Keng Kuo
- Institute of Nanoengineering and Microsystems; National Tsing Hua University; Hsinchu City Taiwan
| | - Mei-Yen Fang
- New Research Department; Eternal Materials Co. Ltd.; Kaohsiung City Taiwan
| | - Tu-Yi Wu
- New Research Department; Eternal Materials Co. Ltd.; Kaohsiung City Taiwan
| | - Ted Yang
- New Research Department; Eternal Materials Co. Ltd.; Kaohsiung City Taiwan
| | - Hsiang-Wen Tseng
- Department and Institute of Pharmacology; National Yang Ming University; Taipei City Taiwan
| | - Chih-Chen Chen
- Institute of Nanoengineering and Microsystems; National Tsing Hua University; Hsinchu City Taiwan
| | - Chao-Min Cheng
- Institute of Biomedical Engineering; National Tsing Hua University; Hsinchu City Taiwan
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207
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Brockman KS, Kizhakkedathu JN, Santerre JP. Hemocompatibility studies on a degradable polar hydrophobic ionic polyurethane (D-PHI). Acta Biomater 2017; 48:368-377. [PMID: 27818307 DOI: 10.1016/j.actbio.2016.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/23/2016] [Accepted: 11/02/2016] [Indexed: 11/15/2022]
Abstract
Biomaterial blood compatibility is a complex process that involves four key pathways, including the coagulation cascade, the complement system, platelets, and leukocytes. While many studies have addressed the initial contact of blood with homopolymeric (e.g. Teflon) or simple copolymeric (e.g. Dacron) biomaterials, relatively less attention has been given to investigating blood coagulation with respect to complex copolymeric systems containing well defined and diverse function. The current study sought to assess the hemocompatibility of a complex polyurethane (PU) containing a unique combination of polar, hydrophobic, and ionic domains (D-PHI). This included a whole blood (WB) study, followed by tests on the intrinsic and extrinsic coagulation pathways, complement activation, platelet activation, and an assessment of the effect of leukocytes on platelet-biomaterial interactions. A small increase in blood clot formation was observed on D-PHI in WB; however, there was no significant increase in clotting via the intrinsic coagulation cascade. No significant increase in platelet adhesion and only a very slight increase in platelet activation were observed in comparison to albumin-coated substrates (negative control). D-PHI showed mild complement activation and increased initiation of the extrinsic pathway of coagulation, along with the observation that leukocytes were important in mediating platelet-biomaterial interactions. It is proposed that complement is responsible for activating coagulation by inciting leukocytes to generate tissue factor (TF), which causes extrinsic pathway activation. This low level of blood clotting on D-PHI's surface may be necessary for the beneficial wound healing of vascular constructs that has been previously reported for this material. STATEMENT OF SIGNIFICANCE Understanding the hemocompatibility of devices intended for blood-contacting applications is important for predicting device failure. Hemocompatibility is a complex parameter (affected by at least four different mechanisms) that measures the level of thrombus generation and immune system activation resulting from blood-biomaterial contact. The complexity of hemocompatibility implies that homopolymers are unlikely to solve the clotting challenges that face most biomaterials. Diversity in surface chemistry (containing hydrophobic, ionic, and polar domains) obtained from engineered polyurethanes can lead to favourable interactions with blood. The current research considered the effect of a highly functionalized polyurethane biomaterial on all four mechanisms in order to provide a comprehensive in vitro measure of the hemocompatibility of this unique material and the important mechanisms at play.
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Affiliation(s)
- Kathryne S Brockman
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3R5, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
| | - Jayachandran N Kizhakkedathu
- Department of Pathology and Laboratory Medicine and Centre for Blood Research, University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J Paul Santerre
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3R5, Canada; Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada; Faculty of Dentistry, University of Toronto, Toronto, Ontario M5G 1G6, Canada.
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208
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Abstract
Macrophages are the initial biologic responders to biomaterials. These highly plastic immune sentinels control and modulate responses to materials, foreign or natural. The responses may vary from immune stimulatory to immune suppressive. Several parameters have been identified that influence macrophage response to biomaterials, specifically size, geometry, surface topography, hydrophobicity, surface chemistry, material mechanics, and protein adsorption. In this review, the influence of these parameters is supported with examples of both synthetic and naturally derived materials and illustrates that a combination of these parameters ultimately influences macrophage responses to the biomaterial. Having an understanding of these properties may lead to highly efficient design of biomaterials with desirable biologic response properties.
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209
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Chan AJ, Sarkar P, Gaboriaud F, Fontaine-Aupart MP, Marlière C. Control of interface interactions between natural rubber and solid surfaces through charge effects: an AFM study in force spectroscopic mode. RSC Adv 2017. [DOI: 10.1039/c7ra08589c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Adhesion of nanoparticles (natural rubber) is monitored by slight changes in the surface charge state of the contacting solid surfaces.
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Affiliation(s)
- Alan Jenkin Chan
- Institut des Sciences Moléculaires d'Orsay, ISMO
- Université Paris-Sud
- CNRS
- 91405 Orsay Cedex
- France
| | | | - Fabien Gaboriaud
- Manufacture Française des Pneumatiques Michelin
- F-63040 Clermont Ferrand 9
- France
| | | | - Christian Marlière
- Institut des Sciences Moléculaires d'Orsay, ISMO
- Université Paris-Sud
- CNRS
- 91405 Orsay Cedex
- France
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210
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Latip EA, Coudron L, McDonnell MB, Johnston ID, McCluskey DK, Day R, Tracey MC. Protein droplet actuation on superhydrophobic surfaces: a new approach toward anti-biofouling electrowetting systems. RSC Adv 2017. [DOI: 10.1039/c7ra10920b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Anti-biofouling behaviour of an electrowetting device using off-the-shelf superhydrophobic materials is demonstrated through protein adsorption measurement and protein-laden droplet actuation.
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Affiliation(s)
| | - L. Coudron
- School of Engineering and Technology
- University of Hertfordshire
- UK
| | - M. B. McDonnell
- School of Engineering and Technology
- University of Hertfordshire
- UK
- Dstl Porton Down
- Salisbury
| | - I. D. Johnston
- School of Engineering and Technology
- University of Hertfordshire
- UK
| | - D. K. McCluskey
- School of Engineering and Technology
- University of Hertfordshire
- UK
| | - R. Day
- School of Engineering and Technology
- University of Hertfordshire
- UK
| | - M. C. Tracey
- School of Engineering and Technology
- University of Hertfordshire
- UK
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211
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Flynn SP, Monaghan R, Bogan J, McKenna M, Cowley A, Daniels S, Hughes G, Kelleher SM. Controlling wettability of PECVD-deposited dual organosilicon/carboxylic acid films to influence DNA hybridisation assay efficiency. J Mater Chem B 2017; 5:8378-8388. [DOI: 10.1039/c7tb01925d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Plasma oxidation of Zeonor and deposition of TEOS/AA thin film showing dual layer effect on the surface.
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Affiliation(s)
- S. P. Flynn
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
- School of Chemistry
| | - R. Monaghan
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
- Biomedical Diagnostic Institute
| | - J. Bogan
- School of Physical Sciences
- Dublin City University
- Dublin 9
- Ireland
| | - M. McKenna
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
- Biomedical Diagnostic Institute
| | - A. Cowley
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
| | - S. Daniels
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
- Biomedical Diagnostic Institute
| | - G. Hughes
- School of Physical Sciences
- Dublin City University
- Dublin 9
- Ireland
| | - S. M. Kelleher
- National Centre for Plasma Science and Technology
- Glasnevin
- Dublin 9
- Ireland
- School of Chemistry
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212
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Song J, Liu Y, Liao Z, Wang S, Tyagi R, Liu W. Wear studies on ZrO 2 -filled PEEK as coating bearing materials for artificial cervical discs of Ti6Al4V. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:985-94. [DOI: 10.1016/j.msec.2016.08.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 07/15/2016] [Accepted: 08/02/2016] [Indexed: 10/21/2022]
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213
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Guo S, Zhu X, Li M, Shi L, Ong JLT, Jańczewski D, Neoh KG. Parallel Control over Surface Charge and Wettability Using Polyelectrolyte Architecture: Effect on Protein Adsorption and Cell Adhesion. ACS APPLIED MATERIALS & INTERFACES 2016; 8:30552-30563. [PMID: 27762557 DOI: 10.1021/acsami.6b09481] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Surface charge and wettability, the two prominent physical factors governing protein adsorption and cell adhesion, have been extensively investigated in the literature. However, a comparison between these driving forces in terms of their independent and cooperative effects in affecting adhesion is rarely explored on a systematic and quantitative level. Herein, we formulate a protocol that features two-dimensional control over both surface charge and wettability with limited cross-parameter influence. This strategy is implemented by controlling both the polyion charge density in the layer-by-layer (LbL) assembly process and the polyion side-chain chemical structures. The 2D property matrix spans surface isoelectric points ranging from 5 to 9 and water contact angles from 35 to 70°, with other interferential factors (e.g., roughness) eliminated. The interplay between these two surface variables influences protein (bovine serum albumin, lysozyme) adsorption and 3T3 fibroblast cell adhesion. For proteins, we observe the presence of thresholds for surface wettability and electrostatic driving forces necessary to affect adhesion. Beyond these thresholds, the individual effects of electrostatic forces and wettability are observed. For fibroblast, both surface charge and wettability have an effect on its adhesion. The combined effects of positive charge and hydrophilicity lead to the highest cell adhesion, whereas negative charge and hydrophobicity lead to the lowest cell adhesion. Our design strategy can potentially form the basis for studying the distinct behaviors of electrostatic force or wettability driven interfacial phenomena and serve as a reference in future studies assessing protein adsorption and cell adhesion to surfaces with known charge and wettability within the property range studied here.
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Affiliation(s)
- Shanshan Guo
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore , Kent Ridge, Singapore 117576
| | - Xiaoying Zhu
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research , 2 Fusionopolis Way, Singapore 138634
- Department of Environmental Science, Zhejiang University , Hangzhou, China 310058
| | - Min Li
- Department of Chemical & Biomolecular Engineering, National University of Singapore , Kent Ridge, Singapore 119260
| | - Liya Shi
- Department of Chemical & Biomolecular Engineering, National University of Singapore , Kent Ridge, Singapore 119260
| | - June Lay Ting Ong
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research , 2 Fusionopolis Way, Singapore 138634
| | - Dominik Jańczewski
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology , Noakowskiego 3, 00-664 Warsaw, Poland
| | - Koon Gee Neoh
- NUS Graduate School for Integrative Science and Engineering, National University of Singapore , Kent Ridge, Singapore 117576
- Department of Chemical & Biomolecular Engineering, National University of Singapore , Kent Ridge, Singapore 119260
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214
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Dzhoyashvili NA, Thompson K, Gorelov AV, Rochev YA. Film Thickness Determines Cell Growth and Cell Sheet Detachment from Spin-Coated Poly(N-Isopropylacrylamide) Substrates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:27564-27572. [PMID: 27661256 DOI: 10.1021/acsami.6b09711] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Poly(N-isopropylacrylamide) (pNIPAm) is widely used to fabricate thermoresponsive surfaces for cell sheet detachment. Many complex and expensive techniques have been employed to produce pNIPAm substrates for cell culture. The spin-coating technique allows rapid fabrication of pNIPAm substrates with high reproducibility and uniformity. In this study, the dynamics of cell attachment, proliferation, and function on non-cross-linked spin-coated pNIPAm films of different thicknesses were investigated. The measurements of advancing contact angle revealed increasing contact angles with increasing film thickness. Results suggest that more hydrophilic 50 and 80 nm thin pNIPAm films are more preferable for cell sheet fabrication, whereas more hydrophobic 300 and 900 nm thick spin-coated pNIPAm films impede cell attachment. These changes in cell behavior were correlated with changes in thickness and hydration of pNIPAm films. The control of pNIPAm film thickness using the spin-coating technique offers an effective tool for cell sheet-based tissue engineering.
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Affiliation(s)
| | | | - Alexander V Gorelov
- School of Chemistry and Chemical Biology, University College Dublin , D04 R7R0, Belfield, Dublin 4, Ireland
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Science , 142290 Pushchino, Moscow Region, Russia
| | - Yuri A Rochev
- Sechenov First Moscow State Medical University , Institute for Regenerative Medicine, 119991 Moscow, Russia
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215
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Harris TI, Gaztambide DA, Day BA, Brock CL, Ruben AL, Jones JA, Lewis RV. Sticky Situation: An Investigation of Robust Aqueous-Based Recombinant Spider Silk Protein Coatings and Adhesives. Biomacromolecules 2016; 17:3761-3772. [PMID: 27704788 DOI: 10.1021/acs.biomac.6b01267] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The mechanical properties and biocompatibility of spider silks have made them one of the most sought after and studied natural biomaterials. A biomimetic process has been developed that uses water to solvate purified recombinant spider silk proteins (rSSps) prior to material formation. The absence of harsh organic solvents increases cost effectiveness, safety, and decreases the environmental impact of these materials. This development allows for the investigation of aqueous-based rSSps as coatings and adhesives and their potential applications. In these studies it was determined that fiber-based rSSps in nonfiber formations have the capability to coat and adhere numerous substrates, whether rough, smooth, hydrophobic, or hydrophilic. Further, these materials can be functionalized for a variety of processes. Drug-eluting coatings have been made with the capacity to release a variety of compounds in addition to their inherent ability to prevent blood clotting and biofouling. Additionally, spider silk protein adhesives are strong enough to outperform some conventional glues and still display favorable tissue implantation properties. The physical properties, corresponding capabilities, and potential applications of these nonfibrous materials were characterized in this study. Mechanical properties, ease of manufacturing, biodegradability, biocompatibility, and functionality are the hallmarks of these revolutionary spider silk protein materials.
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Affiliation(s)
- Thomas I Harris
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Danielle A Gaztambide
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Breton A Day
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Cameron L Brock
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Ashley L Ruben
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Justin A Jones
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
| | - Randolph V Lewis
- Departments of Biological Engineering, §Biology, and ∥Nutrition, Dietetics, and Food Sciences, Utah State University , Logan, Utah 84322, United States
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216
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Surface characterization and cytotoxicity analysis of plasma sprayed coatings on titanium alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:675-683. [DOI: 10.1016/j.msec.2016.05.070] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 05/02/2016] [Accepted: 05/16/2016] [Indexed: 12/25/2022]
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217
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Plasma-modified nitric oxide-releasing polymer films exhibit time-delayed 8-log reduction in growth of bacteria. Biointerphases 2016; 11:031005. [PMID: 27440395 DOI: 10.1116/1.4959105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Tygon(®) and other poly(vinyl chloride)-derived polymers are frequently used for tubing in blood transfusions, hemodialysis, and other extracorporeal circuit applications. These materials, however, tend to promote bacterial proliferation which contributes to the high risk of infection associated with device use. Antibacterial agents, such as nitric oxide donors, can be incorporated into these materials to eliminate bacteria before they can proliferate. The release of the antimicrobial agent from the device, however, is challenging to control and sustain on timescales relevant to blood transport procedures. Surface modification techniques can be employed to address challenges with controlled drug release. Here, surface modification using H2O (v) plasma is explored as a potential method to improve the biocompatibility of biomedical polymers, namely, to tune the nitric oxide-releasing capabilities from Tygon films. Film properties are evaluated pre- and post-treatment by contact angle goniometry, x-ray photoelectron spectroscopy, and optical profilometry. H2O (v) plasma treatment significantly enhances the wettability of the nitric-oxide releasing films, doubles film oxygen content, and maintains surface roughness. Using the kill rate method, the authors determine both treated and untreated films cause an 8 log reduction in the population of both Gram-negative Escherichia coli and Gram-positive Staphylococcus aureus. Notably, however, H2O (v) plasma treatment delays the kill rate of treated films by 24 h, yet antibacterial efficacy is not diminished. Results of nitric oxide release, measured via chemiluminescent detection, are also reported and correlated to the observed kill rate behavior. Overall, the observed delay in biocidal agent release caused by our treatment indicates that plasma surface modification is an important route toward achieving controlled drug release from polymeric biomedical devices.
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218
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Kim W, Lee H, Kim Y, Choi CH, Lee D, Hwang H, Kim G. Versatile design of hydrogel-based scaffolds with manipulated pore structure for hard-tissue regeneration. Biomed Mater 2016; 11:055002. [DOI: 10.1088/1748-6041/11/5/055002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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219
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Guo S, Zhu X, Jańczewski D, Lee SSC, He T, Teo SLM, Vancso GJ. Measuring protein isoelectric points by AFM-based force spectroscopy using trace amounts of sample. NATURE NANOTECHNOLOGY 2016; 11:817-23. [PMID: 27454881 DOI: 10.1038/nnano.2016.118] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2016] [Accepted: 06/03/2016] [Indexed: 05/14/2023]
Abstract
Protein charge at various pH and isoelectric point (pI) values is important in understanding protein function. However, often only trace amounts of unknown proteins are available and pI measurements cannot be obtained using conventional methods. Here, we show a method based on the atomic force microscope (AFM) to determine pI using minute quantities of proteins. The protein of interest is immobilized on AFM colloidal probes and the adhesion force of the protein is measured against a positively and a negatively charged substrate made by layer-by-layer deposition of polyelectrolytes. From the AFM force-distance curves, pI values with an estimated accuracy of ±0.25 were obtained for bovine serum albumin, myoglobin, fibrinogen and ribonuclease A over a range of 4.7-9.8. Using this method, we show that the pI of the 'footprint' of the temporary adhesive proteins secreted by the barnacle cyprid larvae of Amphibalanus amphitrite is in the range 9.6-9.7.
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Affiliation(s)
- Shifeng Guo
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, No. 08-03, Singapore 138634, Singapore
| | - Xiaoying Zhu
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, No. 08-03, Singapore 138634, Singapore
| | - Dominik Jańczewski
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, No. 08-03, Singapore 138634, Singapore
- Laboratory of Technological Processes, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Serina Siew Chen Lee
- Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, 119227 Singapore, Singapore
| | - Tao He
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis, No. 08-03, Singapore 138634, Singapore
| | - Serena Lay Ming Teo
- Tropical Marine Science Institute, National University of Singapore, 18 Kent Ridge Road, 119227 Singapore, Singapore
| | - G Julius Vancso
- Institute of Chemical and Engineering Sciences A*STAR, 1 Pesek Road, Jurong Island, 627833 Singapore, Singapore
- MESA+ Institute for Nanotechnology, Materials Science and Technology of Polymers, University of Twente, PO Box 217, 7500 AE Enschede, The Netherlands
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220
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Ozaltin K, Lehocký M, Kuceková Z, Humpolíček P, Sáha P. A novel multistep method for chondroitin sulphate immobilization and its interaction with fibroblast cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 70:94-100. [PMID: 27770972 DOI: 10.1016/j.msec.2016.08.065] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 08/22/2016] [Accepted: 08/24/2016] [Indexed: 12/16/2022]
Abstract
Polymeric biomaterials are widely used in medical applications owing to their low cost, processability and sufficient toughness. Surface modification by creating a thin film of bioactive agents is promising technique to enhance cellular interactions, regulate the protein adsorption and/or avoid bacterial infections. Polyethylene is one of the most used polymeric biomaterial but its hydrophobic nature impedes its further chemical modifications. Plasma treatment is unique method to increase its hydrophilicity by incorporating hydrophilic oxidative functional groups and tailoring the surface by physical etching. Furthermore, grafting of polymer brushes of amine group containing monomers onto the functionalized surface lead to strongly immobilized bioactive agents at the final step. Chondroitin sulphate is natural polysaccharide mainly found in connective cartilage tissue which used as a bioactive agent to immobilize onto polyethylene surface by multistep method in this study.
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Affiliation(s)
- Kadir Ozaltin
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Marián Lehocký
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic.
| | - Zdenka Kuceková
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Petr Humpolíček
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
| | - Petr Sáha
- Centre of Polymer Systems, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 760 01 Zlín, Czech Republic
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221
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Ozaki A, Arisaka Y, Takeda N. Self-driven perfusion culture system using a paper-based double-layered scaffold. Biofabrication 2016; 8:035010. [PMID: 27550929 DOI: 10.1088/1758-5090/8/3/035010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Shear stress caused by fluid flow is known to promote tissue development from cells in vivo. Therefore, perfusion cultures have been studied to investigate the mechanisms involved and to fabricate engineered tissues in vitro, particularly those that include blood vessels. Microfluidic devices, which function with fine machinery of chambers and microsyringes for fluid flow and have small culture areas, are conventionally used for perfusion culture. In contrast, we have developed a self-driven perfusion culture system by using a paper-based double-layered scaffold as the fundamental component. Gelatin microfibers were electrospun onto a paper material to prepare the scaffold system, in which the constant perfusion of the medium and the scaffold for cell adhesion/proliferation were functionally divided into a paper and a gelatin microfiber layer, respectively. By applying both the capillary action and siphon phenomenon of the paper-based scaffold, which bridged two medium chambers at different height levels, a self-driven medium flow was achieved and the flow rate was also stable, constant, and quantitatively controllable. Moreover, the culture area was enlargeable to the cm(2) scale. The endothelial cells cultivated on this system oriented along the medium-flow direction, suggesting that the shear stress caused by medium flow was effectively applied. This perfusion culture system is expected to be useful for fabricating three-dimensional and large engineered tissues in the future.
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222
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Mechanically tuned nanocomposite coating on titanium metal with integrated properties of biofilm inhibition, cell proliferation, and sustained drug delivery. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2016; 13:23-35. [PMID: 27558354 DOI: 10.1016/j.nano.2016.08.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/29/2016] [Accepted: 08/04/2016] [Indexed: 11/20/2022]
Abstract
The clinical success of coated implants in executing biological functions inclusive of sustainable drug release and long term antibacterial activity without antibiotics is critical. To this aim, a nanohybrid of silver nanoparticles (AgNPs) cored in polyvinyl alcohol nanocapsules (Ag-PVA NCs) embedded in chitosan (CS) matrix loaded with anti-inflammatory drug naproxen was prepared. The synthesized nanohybrids that were subjected to coatings on (3-aminopropyl)triethoxysilane (APTES) treated titanium (Ti) metal exhibited dual role of excellent inhibition on biofilm formation and sustained drug release. These dual characteristics are achieved mainly based on intrinsic antibacterial property of AgNPs and differential entrapment of drug in PVA polymeric shell of AgNPs and CS matrix. The coatings also demonstrated enhanced mechanical properties with increasing inorganic filler and stress shielding on Ti metal. The biocompatibility tests involving adhesion, proliferation and differentiation of osteoblast cells demonstrated the efficacy of Ag-PVA NCs embedded in CS matrix as a suitable coating material for orthopedic applications.
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223
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Improved antifouling properties and selective biofunctionalization of stainless steel by employing heterobifunctional silane-polyethylene glycol overlayers and avidin-biotin technology. Sci Rep 2016; 6:29324. [PMID: 27381834 PMCID: PMC4933944 DOI: 10.1038/srep29324] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/15/2016] [Indexed: 12/28/2022] Open
Abstract
A straightforward solution-based method to modify the biofunctionality of stainless steel (SS) using heterobifunctional silane-polyethylene glycol (silane-PEG) overlayers is reported. Reduced nonspecific biofouling of both proteins and bacteria onto SS and further selective biofunctionalization of the modified surface were achieved. According to photoelectron spectroscopy analyses, the silane-PEGs formed less than 10 Å thick overlayers with close to 90% surface coverage and reproducible chemical compositions. Consequently, the surfaces also became more hydrophilic, and the observed non-specific biofouling of proteins was reduced by approximately 70%. In addition, the attachment of E. coli was reduced by more than 65%. Moreover, the potential of the overlayer to be further modified was demonstrated by successfully coupling biotinylated alkaline phosphatase (bAP) to a silane-PEG-biotin overlayer via avidin-biotin bridges. The activity of the immobilized enzyme was shown to be well preserved without compromising the achieved antifouling properties. Overall, the simple solution-based approach enables the tailoring of SS to enhance its activity for biomedical and biotechnological applications.
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224
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Desseaux S, Hinestrosa JP, Schüwer N, Lokitz BS, Ankner JF, Kilbey SM, Voitchovsky K, Klok HA. Swelling Behavior and Nanomechanical Properties of (Peptide-Modified) Poly(2-hydroxyethyl methacrylate) and Poly(poly(ethylene glycol) methacrylate) Brushes. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00881] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Solenne Desseaux
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Juan Pablo Hinestrosa
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | - Nicolas Schüwer
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
| | | | | | - S. Michael Kilbey
- Departments of Chemistry and Chemical & Biomolecular Engineering, University of Tennessee, Knoxville, Tennessee 37996-1600, United States
| | - Kislon Voitchovsky
- Department
of Physics, Durham University, South Road, Durham DH1 3LE, U.K
| | - Harm-Anton Klok
- Institut
des Matériaux et Institut des Sciences et Ingénierie
Chimiques, Laboratoire des Polymères, École Polytechnique Fédérale de Lausanne (EPFL), Bâtiment MXD, Station 12, CH-1015 Lausanne, Switzerland
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225
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A New Route of Fucoidan Immobilization on Low Density Polyethylene and Its Blood Compatibility and Anticoagulation Activity. Int J Mol Sci 2016; 17:ijms17060908. [PMID: 27294915 PMCID: PMC4926442 DOI: 10.3390/ijms17060908] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/03/2016] [Accepted: 06/06/2016] [Indexed: 12/12/2022] Open
Abstract
Beside biomaterials’ bulk properties, their surface properties are equally important to control interfacial biocompatibility. However, due to the inadequate interaction with tissue, they may cause foreign body reaction. Moreover, surface induced thrombosis can occur when biomaterials are used for blood containing applications. Surface modification of the biomaterials can bring enhanced surface properties in biomedical applications. Sulfated polysaccharide coatings can be used to avoid surface induced thrombosis which may cause vascular occlusion (blocking the blood flow by blood clot), which results in serious health problems. Naturally occurring heparin is one of the sulfated polysaccharides most commonly used as an anticoagulant, but its long term usage causes hemorrhage. Marine sourced sulfated polysaccharide fucoidan is an alternative anticoagulant without the hemorrhage drawback. Heparin and fucoidan immobilization onto a low density polyethylene surface after functionalization by plasma has been studied. Surface energy was demonstrated by water contact angle test and chemical characterizations were carried out by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Surface morphology was monitored by scanning electron microscope and atomic force microscope. Finally, their anticoagulation activity was examined for prothrombin time (PT), activated partial thromboplastin time (aPTT), and thrombin time (TT).
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226
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Vishwakarma A, Bhise NS, Evangelista MB, Rouwkema J, Dokmeci MR, Ghaemmaghami AM, Vrana NE, Khademhosseini A. Engineering Immunomodulatory Biomaterials To Tune the Inflammatory Response. Trends Biotechnol 2016; 34:470-482. [DOI: 10.1016/j.tibtech.2016.03.009] [Citation(s) in RCA: 301] [Impact Index Per Article: 37.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/27/2016] [Accepted: 03/29/2016] [Indexed: 11/24/2022]
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227
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Ribeiro A, Volkov V, Oliveira MB, Padrão J, Mano JF, Gomes AC, Cavaco-Paulo A. BSA/HSA ratio modulates the properties of Ca(2+)-induced cold gelation scaffolds. Int J Biol Macromol 2016; 89:535-44. [PMID: 27156695 DOI: 10.1016/j.ijbiomac.2016.05.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 05/03/2016] [Accepted: 05/04/2016] [Indexed: 11/27/2022]
Abstract
An effective tissue engineering approach requires adjustment according to the target tissue to be engineered. The possibility of obtaining a protein-based formulation for the development of multivalent tunable scaffolds that can be adapted for several types of cells and tissues is explored in this work. The incremental substitution of bovine serum albumin (BSA) by human serum albumin (HSA), changing the scaffolds' hydrophilic/hydrophobic ratio, on a previously optimized scaffold formulation resulted in a set of uniform porous scaffolds with different physical properties and associated cell proliferation profile along time. There was a general trend towards an increase in hydrophilicity, swelling degree and in vitro degradation of the scaffolds with increasing replacement of BSA by HAS. The set of BSA/HSA scaffolds presented distinct values for the storage (elastic) modulus and loss factor which were similar to those described for different native tissues such as bone, cartilage, muscle, skin and neural tissue. The preferential adhesion and proliferation of skin fibroblasts on the BSA25%HSA75% and HSA100% scaffolds, as predicted by their viscoelastic properties, demonstrate that the BSA/HSA scaffold formulation is promising for the development of scaffolds that can be tuned according to the tissue to be repaired and restored.
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Affiliation(s)
- Artur Ribeiro
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal; CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Vadim Volkov
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Mariana B Oliveira
- B's Research Group-Biomaterials, Biodegradables, and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Jorge Padrão
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - João F Mano
- B's Research Group-Biomaterials, Biodegradables, and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal; ICVS/3B's-PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Andreia C Gomes
- CBMA (Centre of Molecular and Environmental Biology), Department of Biology, University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal
| | - Artur Cavaco-Paulo
- CEB-Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal.
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228
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Skopinska-Wisniewska J, Wegrzynowska-Drzymalska K, Bajek A, Maj M, Sionkowska A. Is dialdehyde starch a valuable cross-linking agent for collagen/elastin based materials? JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2016; 27:67. [PMID: 26886815 PMCID: PMC4757609 DOI: 10.1007/s10856-016-5677-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 01/19/2016] [Indexed: 05/29/2023]
Abstract
Collagen and elastin are the main structural proteins in mammal bodies. They provide mechanical support, strength, and elasticity to various organs and tissues, e.g. skin, tendons, arteries, and bones. They are readily available, biodegradable, biocompatible and they stimulate cell growth. The physicochemical properties of collagen and elastin-based materials can be modified by cross-linking. Glutaraldehyde is one of the most efficient cross-linking agents. However, the unreacted molecules can be released from the material and cause cytotoxic reactions. Thus, the aim of our work was to investigate the influence of a safer, macromolecular cross-linking agent--dialdehyde starch (DAS). The properties of hydrogels based on collagen/elastin mixtures (95/5, 90/10) containing 5 and 10% of DAS and neutralized via dialysis against deionized water were tested. The homogenous, transparent, stiff hydrogels were obtained. The DAS addition causes the formation of intermolecular cross-linking bonds but does not affect the secondary structure of the proteins. As a result, the thermal stability, mechanical strength, and, surprisingly, swelling ability increased. At the same time, the surface properties test and in vitro study show that the materials are attractive for 3T3 cells. Moreover, the materials containing 10% of DAS are more resistant to enzymatic degradation.
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Affiliation(s)
- J Skopinska-Wisniewska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland.
| | | | - A Bajek
- Collegium Medicum, Nicolaus Copernicus University in Torun, Karlowicza 24, 85-092, Bydgoszcz, Poland
| | - M Maj
- Collegium Medicum, Nicolaus Copernicus University in Torun, Karlowicza 24, 85-092, Bydgoszcz, Poland
| | - A Sionkowska
- Faculty of Chemistry, Nicolaus Copernicus University in Torun, Gagarina 7, 87-100, Toruń, Poland
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229
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Zeng Q, Qin J, Yin X, Liu H, Zhu L, Dong W, Zhang S. Preparation and hemocompatibility of electrospun O-carboxymethyl chitosan/PVA nanofibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43565] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Qinghuan Zeng
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
| | - Jinmin Qin
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
| | - Xueqiong Yin
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
| | - Haifang Liu
- Affiliated Haikou Hospital, Xiangya School of Medicine central south University; Haikou Municipal People's Hospital; Haikou Hainan 570208 People's Republic of China
| | - Li Zhu
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
| | - Wenyuan Dong
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
| | - Song Zhang
- Hainan Provincial Fine Chemical Engineering Research Center; Hainan University; Haikou Hainan 570228 People's Republic of China
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230
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Cross MC, Toomey RG, Gallant ND. Protein-surface interactions on stimuli-responsive polymeric biomaterials. ACTA ACUST UNITED AC 2016; 11:022002. [PMID: 26942693 DOI: 10.1088/1748-6041/11/2/022002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Responsive surfaces: a review of the dependence of protein adsorption on the reversible volume phase transition in stimuli-responsive polymers. Specifically addressed are a widely studied subset: thermoresponsive polymers. Findings are also generalizable to other materials which undergo a similarly reversible volume phase transition. As of 2015, over 100,000 articles have been published on stimuli-responsive polymers and many more on protein-biomaterial interactions. Significantly, fewer than 100 of these have focused specifically on protein interactions with stimuli-responsive polymers. These report a clear trend of increased protein adsorption in the collapsed state compared to the swollen state. This control over protein interactions makes stimuli-responsive polymers highly useful in biomedical applications such as wound repair scaffolds, on-demand drug delivery, and antifouling surfaces. Outstanding questions are whether the protein adsorption is reversible with the volume phase transition and whether there is a time-dependence. A clear understanding of protein interactions with stimuli-responsive polymers will advance theoretical models, experimental results, and biomedical applications.
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Affiliation(s)
- Michael C Cross
- Department of Physics, University of South Florida, Tampa, FL 33620, USA
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231
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An Y, Li D, Roohpour N, Gautrot JE, Barber AH. Failure mechanisms in denture adhesives. Dent Mater 2016; 32:615-23. [PMID: 26880054 DOI: 10.1016/j.dental.2016.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 01/18/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVE The mechanical properties of bio adhesives in oral care application are expected to be critical in defining the stability and release of devices such as dentures from the oral tissue. A multiscale experimental mechanical approach is used to evaluate the performance of denture adhesive materials. METHODS The inherent mechanical behavior of denture fixatives was examined by separating adhesive material from a representative polymethyl methacrylate (PMMA) surface using atomic force microscopy (AFM) approaches and compared to macroscopic mechanical testing. RESULTS Failure of denture adhesive material was found to be critically dependent on the formation of fibrillar structures within the adhesive. Small scale mechanical testing provided evidence for the mechanical properties of the fibrillar structures formed within the adhesive in macroscopic mechanical testing and indicated the importance of the forces required to fail the adhesive at these small length scales in controlling both the maximum forces sustained by the bulk material as well as the ease of separating the adhesive from PMMA surfaces. SIGNIFICANCE Our results are important in defining the performance of denture fixative materials and their control of adhesive behavior, allowing the potential to tune properties required in the adhesion and removal of dentures.
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Affiliation(s)
- Yiran An
- Institute of Bioengineering, University of London, Mile End Road, London E1 4NS, UK; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Danyang Li
- Institute of Bioengineering, University of London, Mile End Road, London E1 4NS, UK; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK
| | - Nima Roohpour
- Consumer Healthcare R&D, GlaxoSmithKlein, St George's Ave, Weybridge KT13 0DE, UK
| | - Julien E Gautrot
- Institute of Bioengineering, University of London, Mile End Road, London E1 4NS, UK; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK.
| | - Asa H Barber
- Institute of Bioengineering, University of London, Mile End Road, London E1 4NS, UK; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK; School of Engineering, University of Portsmouth, Portsmouth PO1 3DJ, UK.
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232
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Nakamura M, Hori N, Ando H, Namba S, Toyama T, Nishimiya N, Yamashita K. Surface free energy predominates in cell adhesion to hydroxyapatite through wettability. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:283-92. [PMID: 26952425 DOI: 10.1016/j.msec.2016.01.037] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 01/04/2016] [Accepted: 01/15/2016] [Indexed: 11/16/2022]
Abstract
The initial adhesion of cells to biomaterials is critical in the regulation of subsequent cell behaviors. The purpose of this study was to investigate a mechanism through which the surface wettability of biomaterials can be improved and determine the effects of biomaterial surface characteristics on cellular behaviors. We investigated the surface characteristics of various types of hydroxyapatite after sintering in different atmospheres and examined the effects of various surface characteristics on cell adhesion to study cell-biomaterial interactions. Sintering atmosphere affects the polarization capacity of hydroxyapatite by changing hydroxide ion content and grain size. Compared with hydroxyapatite sintered in air, hydroxyapatite sintered in saturated water vapor had a higher polarization capacity that increased surface free energy and improved wettability, which in turn accelerated cell adhesion. We determined the optimal conditions of hydroxyapatite polarization for the improvement of surface wettability and acceleration of cell adhesion.
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Affiliation(s)
- Miho Nakamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan.
| | - Naoko Hori
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan
| | - Hiroshi Ando
- Department of Materials and Applied Chemistry, Nihon University, 1-5-1 Kanda-Surugadai, Chiyoda, Tokyo 1018308, Japan
| | - Saki Namba
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan; Department of Materials and Applied Chemistry, Nihon University, 1-5-1 Kanda-Surugadai, Chiyoda, Tokyo 1018308, Japan
| | - Takeshi Toyama
- Department of Materials and Applied Chemistry, Nihon University, 1-5-1 Kanda-Surugadai, Chiyoda, Tokyo 1018308, Japan
| | - Nobuyuki Nishimiya
- Department of Materials and Applied Chemistry, Nihon University, 1-5-1 Kanda-Surugadai, Chiyoda, Tokyo 1018308, Japan
| | - Kimihiro Yamashita
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan
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233
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Nakamura M, Hiratai R, Hentunen T, Salonen J, Yamashita K. Hydroxyapatite with High Carbonate Substitutions Promotes Osteoclast Resorption through Osteocyte-like Cells. ACS Biomater Sci Eng 2016; 2:259-267. [PMID: 33418638 DOI: 10.1021/acsbiomaterials.5b00509] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The role of ceramic biomaterials in the repair of bone defects varies from materials that purely fill the physical defects of the injured bone to scaffolds that control cellular behaviors. In this study, we investigated the osteoclast formation related to the osteoconductivity of ceramic biomaterials. We performed in vitro cocultures using osteocyte-like cells and bone marrow cells and in vivo implantations of hydroxyapatite with different amounts of carbonate substitutions into rat femurs. The analyses of the cocultures revealed that bone marrow cells differentiated into osteoclasts and were activated to resorb the substratum when grown on hydroxyapatite with higher numbers of carbonate substitutions. This was indicated by the expression of macrophage colony-stimulating factor and receptor activator of the nuclear factor-kappa B ligand that induce osteoclast differentiation by osteocyte-like cells and characteristic resorption pits. The increased osteoclastogenesis in vivo was observed near the hydroxyapatite with more carbonate substitutions after implantation into the rat femurs. These results suggest that the content of carbonate ions in an apatite crystal lattice has an inductive effect on osteoclastogenesis in the vicinity of the implanted ceramic biomaterial. The results contribute to the design of biomaterials that would be resorbed by osteoclasts after fulfilling their primary function as scaffolds for cell growth and eventually bone regeneration.
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Affiliation(s)
- Miho Nakamura
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan
| | - Rumi Hiratai
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan
| | - Teuvo Hentunen
- Institute of Biomedicine/Cell Biology and Anatomy, University of Turku Kiinamyllynkatu 10, 20520 Turku, Finland
| | - Jukka Salonen
- Institute of Biomedicine/Cell Biology and Anatomy, University of Turku Kiinamyllynkatu 10, 20520 Turku, Finland
| | - Kimihiro Yamashita
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University 2-3-10 Kanda-Surugadai, Chiyoda, Tokyo 1010062, Japan
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234
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Lee JY, Chung WJ, Kim G. A mechanically improved virus-based hybrid scaffold for bone tissue regeneration. RSC Adv 2016. [DOI: 10.1039/c6ra07054j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A hybrid scaffold (M13-phage/alginate and PCL) was proposed as a biomedical scaffold.
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Affiliation(s)
- Jae Yoon Lee
- Department of Biomechatronic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - Woo-Jae Chung
- Department of Genetic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
| | - GeunHyung Kim
- Department of Biomechatronic Engineering
- College of Biotechnology and Bioengineering
- Sungkyunkwan University
- Suwon 440-746
- Republic of Korea
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235
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Song K, Min T, Jung JY, Shin D, Nam Y. A superhydrophilic nitinol shape memory alloy with enhanced anti-biofouling and anti-corrosion properties. BIOFOULING 2016; 32:535-545. [PMID: 27021115 DOI: 10.1080/08927014.2016.1153633] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This work reports on a nitinol (NiTi) surface modification scheme based on a chemical oxidation method, and characterizes its effects on wetting, biofouling and corrosion. The scheme developed is also compared with selected previous oxidation methods. The proposed method turns NiTi into superhydrophilic in ~5 min, and the static contact angle and contact angle hysteresis were measured to be ~7° and ~12°, respectively. In the PRP (platelet rich plasma) test, platelet adhesion was reduced by ~89% and ~77% respectively, compared with the original NiTi and the NiTi treated with the previous chemical oxidation scheme. The method developed provides a high (~1.1 V) breakdown voltage, which surpasses the ASTM standard for intervascular medical devices. It also provides higher superhydrophilicity, hemo-compatibility and anti-corrosion resistance than previous oxidation schemes, with a significantly reduced process time (~5 min), and will help the development of high performance NiTi devices.
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Affiliation(s)
- K Song
- a Department of Mechanical Engineering , Kyung Hee University , Yongin , Republic of Korea
| | - T Min
- b R&D Center , S&H Co., Ltd , Suwon , Republic of Korea
| | - J-Y Jung
- c Technology Center for Offshore Plant Industries , Korea Research Institute of Ships and Ocean Engineering , Daejeon , Republic of Korea
| | - D Shin
- d Department of Clinical Pharmacology , Seoul National University Hospital , Seoul , Republic of Korea
| | - Y Nam
- a Department of Mechanical Engineering , Kyung Hee University , Yongin , Republic of Korea
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236
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de Medeiros Aires M, Treter J, Nunes Filho A, Oliveira Nascimento I, José Macedo A, Alves Júnior C. Minimizing Pseudomonas aeruginosa adhesion to titanium surfaces by a plasma nitriding process. AIMS BIOPHYSICS 2016. [DOI: 10.3934/biophy.2017.1.19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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237
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Wang L, Li G, Lin Y, Zhang Z, Chen Z, Wu S. A strategy for constructing anti-adhesion surfaces based on interfacial thiol–ene photoclick chemistry between DOPA derivatives with a catechol anchor group and zwitterionic betaine macromolecules. Polym Chem 2016. [DOI: 10.1039/c6py01043a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A novel route to construct stable anti-adhesion surfaces was explored via click chemistry between the anti-adhesion macromolecules and the anchoring compound DMA to various substrates.
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Affiliation(s)
- Liying Wang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Guangji Li
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Yinlei Lin
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zixun Zhang
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zhifeng Chen
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Shuqing Wu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
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238
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Díez-Pascual AM, Díez-Vicente AL. Electrospun fibers of chitosan-grafted polycaprolactone/poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) blends. J Mater Chem B 2015; 4:600-612. [PMID: 32262942 DOI: 10.1039/c5tb01861g] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chitosan-grafted polycaprolactone (CS-g-PCL)/poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx) fiber blends were prepared via wet electrospinning, and their morphology, hydrophilicity, water absorption, biodegradation, cytotoxicity, and thermal, mechanical and antibacterial properties were analyzed. IR spectra revealed strong H-bonding interactions between CS-g-PCL and PHBHHx. SEM and DSC analysis confirmed the immiscibility of the blends at all compositions studied. As the proportion of CS-g-PCL increased, the overall crystallinity of the blends increased, the melting temperature of PCL decreased, and each component promoted the crystallization of the others. The hydrophilicity, water absorption and weight loss in buffered solution decreased as the PHBHHx content increased. DMA and tensile tests indicated a synergistic effect on the mechanical properties at a blend composition of 70/30, leading to an optimal combination of stiffness, strength, ductility and toughness. The fibers retained adequate rigidity and strength under physiological conditions. The 70/30 blend exhibited the highest biocide action against Gram-positive and Gram-negative bacteria. The fibers did not induce toxicity over human dermal fibroblasts. These biodegradable, biocompatible electrospun fibers could be used as scaffolds for tissue engineering.
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Affiliation(s)
- Ana M Díez-Pascual
- Analytical Chemistry, Physical Chemistry and Chemical Engineering Department, Faculty of Biology, Environmental Sciences and Chemistry, Alcalá University, E-28871 Alcalá de Henares, Madrid, Spain.
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239
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Xu LC, Siedlecki CA. Protein adsorption, platelet adhesion, and bacterial adhesion to polyethylene-glycol-textured polyurethane biomaterial surfaces. J Biomed Mater Res B Appl Biomater 2015; 105:668-678. [PMID: 26669615 DOI: 10.1002/jbm.b.33592] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 11/17/2015] [Accepted: 11/18/2015] [Indexed: 11/06/2022]
Abstract
Traditional strategies for surface modification to enhance the biocompatibility of biomaterials often focus on a single route utilizing either chemical or physical approaches. This study combines the chemical and physical treatments as applied to poly(urethane urea) (PUU) biomaterials to enhance biocompatibility at the interface for inhibiting platelet-related thrombosis or bacterial adhesion-induced microbial infections. PUU films were first textured with submicron patterns by a soft lithography two-stage replication process, and then were grafted with polyethylene glycol (PEG). A series of biological response experiments including protein adsorption, platelet adhesion/activation, and bacterial adhesion/biofilm formation showed that PEG-grafted submicron textured biomaterial surfaces were resistant to protein adsorption, and greatly increased the efficiency in reducing both platelet adhesion/activation and bacterial adhesion/biofilm formation due to the additive effects of physical topography and grafted PEG. Results suggest that a combination of chemical modification and surface texturing will be more efficient in preventing biomaterial-associated thrombosis and infection of biomaterials. © 2015 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 668-678, 2017.
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Affiliation(s)
- Li-Chong Xu
- Department of Surgery, Biomedical Engineering Institute, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, 17033
| | - Christopher A Siedlecki
- Department of Surgery, Biomedical Engineering Institute, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, 17033.,Department of Bioengineering, Biomedical Engineering Institute, The Pennsylvania State University, College of Medicine, Hershey, Pennsylvania, 17033
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240
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Major R, Trembecka-Wójciga K, Kot M, Lackner JM, Wilczek P, Major B. In vitro hemocompatibility on thin ceramic and hydrogel films deposited on polymer substrate performed in arterial flow conditions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 61:15-22. [PMID: 26838818 DOI: 10.1016/j.msec.2015.12.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/23/2015] [Accepted: 12/07/2015] [Indexed: 10/22/2022]
Abstract
Hydrogel coatings were stabilized by titanium carbonitride a-C:H:Ti:N buffer layers deposited directly onto the polyurethane (PU) substrate beneath a final hydrogel coating. Coatings of a-C:H:Ti:N were deposited using a hybrid method of pulsed laser deposition (PLD) and magnetron sputtering (MS) under high vacuum conditions. The influence of the buffer a-C:H:Ti:N layer on the hydrogel coating was analysed by means of a multi-scale microstructure study. Mechanical tests were performed at an indentation load of 5 mN using Berkovich indenter geometry. Haemocompatible analyses were performed in vitro using a blood flow simulator. The blood-material interaction was analysed under dynamic conditions. The coating fabrication procedure improved the coating stability due to the deposition of the amorphous titanium carbonitride buffer layer.
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Affiliation(s)
- Roman Major
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, Krakow, Poland.
| | - Klaudia Trembecka-Wójciga
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, Krakow, Poland
| | - Marcin Kot
- AGH University of Science and Technology, Faculty of Mechanical, Engineering and Robotics, Al. Mickiewicza 30, 30-059 Krakow, Poland
| | - Juergen M Lackner
- Joanneum Research Forschungs-GmbH, Materials - Functional Surfaces, Leoben, Austria
| | - Piotr Wilczek
- Heart Prosthesis Institute, Bioengineering Laboratory, Wolnosci 345A, 41-800 Zabrze, Poland
| | - Boguslaw Major
- Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta St. 25, Krakow, Poland
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241
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Liu L, Ercan B, Sun L, Ziemer KS, Webster TJ. Understanding the Role of Polymer Surface Nanoscale Topography on Inhibiting Bacteria Adhesion and Growth. ACS Biomater Sci Eng 2015; 2:122-130. [DOI: 10.1021/acsbiomaterials.5b00431] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Batur Ercan
- Department
of Metallurgical and Materials Engineering, Middle East Technical University, Ankara, 06800, Turkey
| | - Linlin Sun
- Wenzhou
Institute of Biomaterials and Engineering, Wenzhou Medical University, Wenzhou, China
| | | | - Thomas J. Webster
- Center
of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Wenzhou
Institute of Biomaterials and Engineering, Wenzhou Medical University, Wenzhou, China
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242
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Nguyen S, Adamczak M, Hiorth M, Smistad G, Kopperud HM. Interactions of liposomes with dental restorative materials. Colloids Surf B Biointerfaces 2015; 136:744-51. [PMID: 26519936 DOI: 10.1016/j.colsurfb.2015.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/30/2015] [Accepted: 10/18/2015] [Indexed: 10/22/2022]
Abstract
The in vitro adsorption and retention of liposomes onto four common types of dental restorative materials (conventional and silorane-based resin composites as well as conventional and resin-modified glass ionomer cements (GIC)) have been investigated due to their potential use in the oral cavity. Uncoated liposomes (positively and negatively charged) and pectin (low- and high-methoxylated) coated liposomes were prepared and characterized in terms of particle size and zeta potential. The adsorption of liposomes was performed by immersion, quantified by fluorescence detection, and visualized by fluorescence imaging and atomic force microscopy. Positive liposomes demonstrated the highest adsorption on all four types of materials likely due to their attractive surface charge. They also retained well (minimum 40% after 60 min) on both conventional resin composite and GIC even when exposed to simulated salivary flow. Although an intermediate initial level of adsorption was found for the pectin coated liposomes, at least 70% high methoxylated-pectin coated liposomes still remained on the conventional resin composite after 60 min flow exposure. This indicates significant contribution of hydrophobic interactions in the prolonged binding of liposomes to resin composites. Based on these results, the present paper suggests two new possible applications of liposomes in the preservation of dental restorations.
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Affiliation(s)
- Sanko Nguyen
- Nordic Institute of Dental Materials (NIOM), Sognsveien 70A, NO-0855 Oslo, Norway.
| | - Malgorzata Adamczak
- Department of Pharmacy, School of Pharmacy, University of Oslo, Sem Sælands vei 3, NO-0371 Oslo, Norway.
| | - Marianne Hiorth
- Department of Pharmacy, School of Pharmacy, University of Oslo, Sem Sælands vei 3, NO-0371 Oslo, Norway.
| | - Gro Smistad
- Department of Pharmacy, School of Pharmacy, University of Oslo, Sem Sælands vei 3, NO-0371 Oslo, Norway.
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243
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Skopinska-Wisniewska J, Kuderko J, Bajek A, Maj M, Sionkowska A, Ziegler-Borowska M. Collagen/elastin hydrogels cross-linked by squaric acid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:100-108. [PMID: 26706512 DOI: 10.1016/j.msec.2015.11.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 10/30/2015] [Accepted: 11/05/2015] [Indexed: 12/12/2022]
Abstract
Hydrogels based on collagen and elastin are very valuable materials for medicine and tissue engineering. They are biocompatible; however their mechanical properties and resistance for enzymatic degradation need to be improved by cross-linking. Up to this point many reagents have been tested but more secure reactants are still sought. Squaric acid (SqAc), 3,4-dihydroxy 3-cyclobutene 1,2-dione, is a strong, cyclic acid, which reacts easily with amine groups. The properties of hydrogels based on collagen/elastin mixtures (95/5, 90/10) containing 5%, 10% and 20% of SqAc and neutralized via dialysis against deionized water were tested. Cross-linked, 3-D, transparent hydrogels were created. The cross-linked materials are stiffer and more resistant to enzymatic degradation than those that are unmodified. The pore size, swelling ability and surface polarity are reduced due to 5% and 10% of SqAc addition. At the same time, the cellular response is not significantly affected by the cross-linking. Therefore, squaric acid would be regarded as a safe, effective cross-linking agent.
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Affiliation(s)
| | - J Kuderko
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland
| | - A Bajek
- Collegium Medicum Nicolaus Copernicus University, Karlowicza 24, 85-092 Bydgoszcz, Poland
| | - M Maj
- Collegium Medicum Nicolaus Copernicus University, Karlowicza 24, 85-092 Bydgoszcz, Poland
| | - A Sionkowska
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland
| | - M Ziegler-Borowska
- Faculty of Chemistry, Nicolaus Copernicus University, Gagarina 7, 87-100 Torun, Poland
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244
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Chen D, Gao M, Fu Y, Xu X, Hao Z. A facile approach to manipulation of osteogenic activity of orthopedic implants by in situ electrically controlled wettability. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.09.156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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245
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Muñoz AI, Mischler S. Electrochemical Quartz Crystal Microbalance and X-Ray Photoelectron Spectroscopy study of cathodic reactions in Bovine Serum Albumin containing solutions on a Physical Vapour Deposition-CoCrMo biomedical alloy. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.08.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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246
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Ahmad Nor Y, Niu Y, Karmakar S, Zhou L, Xu C, Zhang J, Zhang H, Yu M, Mahony D, Mitter N, Cooper M, Yu C. Shaping Nanoparticles with Hydrophilic Compositions and Hydrophobic Properties as Nanocarriers for Antibiotic Delivery. ACS CENTRAL SCIENCE 2015; 1:328-34. [PMID: 27162988 PMCID: PMC4827501 DOI: 10.1021/acscentsci.5b00199] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Indexed: 05/12/2023]
Abstract
Inspired by the lotus effect in nature, surface roughness engineering has led to novel materials and applications in many fields. Despite the rapid progress in superhydrophobic and superoleophobic materials, this concept of Mother Nature's choice is yet to be applied in the design of advanced nanocarriers for drug delivery. Pioneering work has emerged in the development of nanoparticles with rough surfaces for gene delivery; however, the preparation of nanoparticles with hydrophilic compositions but with enhanced hydrophobic property at the nanoscale level employing surface topology engineering remains a challenge. Herein we report for the first time the unique properties of mesoporous hollow silica (MHS) nanospheres with controlled surface roughness. Compared to MHS with a smooth surface, rough mesoporous hollow silica (RMHS) nanoparticles with the same hydrophilic composition show unusual hydrophobicity, leading to higher adsorption of a range of hydrophobic molecules and controlled release of hydrophilic molecules. RMHS loaded with vancomycin exhibits an enhanced antibacterial effect. Our strategy provides a new pathway in the design of novel nanocarriers for diverse bioapplications.
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Affiliation(s)
- Yusilawati Ahmad Nor
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Yuting Niu
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Surajit Karmakar
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Liang Zhou
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Chun Xu
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Jun Zhang
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Hongwei Zhang
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Meihua Yu
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Donna Mahony
- Queensland
Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Neena Mitter
- Queensland
Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Matthew
A. Cooper
- Institute
for Molecular Bioscience, The University
of Queensland, Brisbane, Queensland 4072, Australia
| | - Chengzhong Yu
- Australian
Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland 4072, Australia
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247
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Cytocompatibility of Si-incorporated TiO2 nanopores films. Colloids Surf B Biointerfaces 2015; 133:214-20. [PMID: 26111898 DOI: 10.1016/j.colsurfb.2015.06.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 05/27/2015] [Accepted: 06/02/2015] [Indexed: 11/21/2022]
Abstract
Si-incorporated TiO2 nanopores films were prepared by anodization and silicon plasma immersion ion implantation. The microstructure and phase composition of the films were investigated by scanning electron microscopy, X-ray diffraction and X-ray photoelectron spectroscopy. The hydrophilicity of the films was evaluated using water contact angle measurement and MG63 cells were cultured on the films to investigate the cytocompatibility. The results showed that the concentration and depth of silicon on the Si-incorporated TiO2 nanopores films increased with the duration time of implantation. Both the as-annealed and Si-incorporated nanopores films exhibited good hydrophilicity and cytocompatibility, while the TiO2 nanopores films implanted silicon for 1.0h showed higher proliferation rate and vitality of MG63 cells than others, indicating a great potential application for titanium implants.
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248
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Haneef AS, Downes S. Assessing the Suitability of Electrospun Poly(Ethylene Terephthalate) and Polystyrene as Cell Carrier Substrates for Potential Subsequent Implantation as a Synthetic Bruch's Membrane. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.945206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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249
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Lorenzetti M, Bernardini G, Luxbacher T, Santucci A, Kobe S, Novak S. Surface properties of nanocrystalline TiO2 coatings in relation to the in vitro plasma protein adsorption. ACTA ACUST UNITED AC 2015. [PMID: 26225819 DOI: 10.1088/1748-6041/10/4/045012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This study reports on the selective adsorption of whole plasma proteins on hydrothermally (HT) grown TiO2-anatase coatings and its dependence on the three main surface properties: surface charge, wettability and roughness. The influence of the photo-activation of TiO2 by UV irradiation was also evaluated. Even though the protein adhesion onto Ti-based substrates was only moderate, better adsorption of any protein (at pH = 7.4) occurred for the most negatively charged and hydrophobic substrate (Ti non-treated) and for the most nanorough and hydrophilic surface (HT Ti3), indicating that the mutual action of the surface characteristics is responsible for the attraction and adhesion of the proteins. The HT coatings showed a higher adsorption of certain proteins (albumin 'passivation' layer, apolipoproteins, vitamin D-binding protein, ceruloplasmin, α-2-HS-glycoprotein) and higher ratios of albumin to fibrinogen and albumin to immunoglobulin γ-chains. The UV pre-irradiation affected the surface properties and strongly reduced the adsorption of the proteins. These results provide in-depth knowledge about the characterization of nanocrystalline TiO2 coatings for body implants and provide a basis for future studies on the hemocompatibility and biocompatibility of such surfaces.
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Affiliation(s)
- M Lorenzetti
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Slovenia. Jožef Stefan International Postgraduate School, Jamova cesta 39, Ljubljana 1000, Slovenia
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250
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Interaction of intraocular lenses with fibronectin and human lens epithelial cells: Effect of chemical composition and aging. J Biomed Mater Res A 2015; 103:3843-51. [DOI: 10.1002/jbm.a.35528] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2014] [Revised: 05/01/2015] [Accepted: 06/23/2015] [Indexed: 11/07/2022]
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