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Wekwejt M, Khamenka M, Ronowska A, Gbureck U. Dual-Setting Bone Cement Based On Magnesium Phosphate Modified with Glycol Methacrylate Designed for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55533-55544. [PMID: 38058111 DOI: 10.1021/acsami.3c14491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Magnesium phosphate cement (MPC) is a suitable alternative for the currently used calcium phosphates, owing to beneficial properties like favorable resorption rate, fast hardening, and higher compressive strength. However, due to insufficient mechanical properties and high brittleness, further improvement is still expected. In this paper, we reported the preparation of a novel type of dual-setting cement based on MPC with poly(2-hydroxyethyl methacrylate) (pHEMA). The aim of our study was to evaluate the effect of HEMA addition, especially its concentration and premix time, on the selected properties of the composite. Several beneficial effects were found: better formability, shortened setting time, and improvement of mechanical strengths. The developed cements were hardening in ∼16-21 min, consisted of well-crystallized phases and polymerized HEMA, had porosity between ∼2-11%, degraded slowly by ∼0.1-4%/18 days, their wettability was ∼20-30°, they showed compressive and bending strength between ∼45-73 and 13-20 MPa, respectively, and, finally, their Young's Modulus was close to ∼2.5-3.0 GPa. The results showed that the optimal cement composition is MPC+15%HEMA and 4 min of polymer premixing time. Overall, our research suggested that this developed cement may be used in various biomedical applications.
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Affiliation(s)
- Marcin Wekwejt
- Biomaterials Technology Department, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, G. Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Maryia Khamenka
- Scientific Club "Materials in Medicine", Advanced Materials Centre, Gdańsk University of Technology, G. Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Anna Ronowska
- Chair of Clinical Biochemistry, Department of Laboratory Medicine, Medical University of Gdańsk, 2x, M. Skłodowskiej-Curie 3a Street, 80-210 Gdańsk, Poland
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2 Street, D-97070 Würzburg, Germany
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Zubillaga V, Salaberria AM, Palomares T, Alonso-Varona A, Kootala S, Labidi J, Fernandes SCM. Chitin Nanoforms Provide Mechanical and Topological Cues to Support Growth of Human Adipose Stem Cells in Chitosan Matrices. Biomacromolecules 2018; 19:3000-3012. [PMID: 29889507 DOI: 10.1021/acs.biomac.8b00570] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The precise role and value of incorporating nanoforms in biologically active matrices for medical applications is not known. In our current work, we incorporate two chitin nanoforms (i.e., nanocrystals or nanofibers) into Genipin-chitosan crosslinked matrices. These materials were studied as 2D films and 3D porous scaffolds to assess their potential as primary support and guidance for stem cells in tissue engineering and regenerative medicine applications. The incorporation of either nanoforms in these 2D and 3D materials reveals significantly better swelling properties and robust mechanical performance in contrast to nanoform-free chitosan matrices. Furthermore, our data shows that these materials, in particular, incorporation of low concentration chitin nanoforms provide specific topological cues to guide the survival, adhesion, and proliferation of human adipose-derived stem cells. These findings demonstrate the potential of Genipin-chitosan crosslinked matrices impregnated with chitin nanoforms as value added materials for stem cell-based biomedical applications.
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Affiliation(s)
- Verónica Zubillaga
- Department of Cellular Biology and Histology, Faculty of Medicine and Odontology , University of the Basque Country (UPV/EHU) , B Sarriena, s/n , 48940 , Leioa , Spain
| | - Asier M Salaberria
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, Polytechnic School , University of the Basque Country (UPV/EHU) , Pza. Europa 1 , 20018 Donostia-San Sebastian , Spain
| | - Teodoro Palomares
- Department of Cellular Biology and Histology, Faculty of Medicine and Odontology , University of the Basque Country (UPV/EHU) , B Sarriena, s/n , 48940 , Leioa , Spain
| | - Ana Alonso-Varona
- Department of Cellular Biology and Histology, Faculty of Medicine and Odontology , University of the Basque Country (UPV/EHU) , B Sarriena, s/n , 48940 , Leioa , Spain
| | - Sujit Kootala
- CNRS/Université de Pau et des Pays de l'Adour , Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 , 2 Av. Pdt Angot , 64053 Pau , France
| | - Jalel Labidi
- Biorefinery Processes Research Group, Department of Chemical and Environmental Engineering, Polytechnic School , University of the Basque Country (UPV/EHU) , Pza. Europa 1 , 20018 Donostia-San Sebastian , Spain
| | - Susana C M Fernandes
- CNRS/Université de Pau et des Pays de l'Adour , Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Materiaux, UMR 5254 , 2 Av. Pdt Angot , 64053 Pau , France
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Small M, Faglie A, Craig AJ, Pieper M, Fernand Narcisse VE, Neuenschwander PF, Chou SF. Nanostructure-Enabled and Macromolecule-Grafted Surfaces for Biomedical Applications. MICROMACHINES 2018; 9:E243. [PMID: 30424176 PMCID: PMC6187347 DOI: 10.3390/mi9050243] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 05/11/2018] [Accepted: 05/16/2018] [Indexed: 12/19/2022]
Abstract
Advances in nanotechnology and nanomaterials have enabled the development of functional biomaterials with surface properties that reduce the rate of the device rejection in injectable and implantable biomaterials. In addition, the surface of biomaterials can be functionalized with macromolecules for stimuli-responsive purposes to improve the efficacy and effectiveness in drug release applications. Furthermore, macromolecule-grafted surfaces exhibit a hierarchical nanostructure that mimics nanotextured surfaces for the promotion of cellular responses in tissue engineering. Owing to these unique properties, this review focuses on the grafting of macromolecules on the surfaces of various biomaterials (e.g., films, fibers, hydrogels, and etc.) to create nanostructure-enabled and macromolecule-grafted surfaces for biomedical applications, such as thrombosis prevention and wound healing. The macromolecule-modified surfaces can be treated as a functional device that either passively inhibits adverse effects from injectable and implantable devices or actively delivers biological agents that are locally based on proper stimulation. In this review, several methods are discussed to enable the surface of biomaterials to be used for further grafting of macromolecules. In addition, we review surface-modified films (coatings) and fibers with respect to several biomedical applications. Our review provides a scientific update on the current achievements and future trends of nanostructure-enabled and macromolecule-grafted surfaces in biomedical applications.
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Affiliation(s)
- Madeline Small
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Alexandra J Craig
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Martha Pieper
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
| | - Vivian E Fernand Narcisse
- Department of Chemistry and Physics, School of Arts and Sciences, LeTourneau University, Longview, TX 75607, USA.
| | - Pierre F Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, 3900 University Blvd., Tyler, TX 75799, USA.
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Bayat N, Zhang Y, Falabella P, Menefee R, Whalen JJ, Humayun MS, Thompson ME. A reversible thermoresponsive sealant for temporary closure of ocular trauma. Sci Transl Med 2017; 9:9/419/eaan3879. [DOI: 10.1126/scitranslmed.aan3879] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 08/02/2017] [Accepted: 10/23/2017] [Indexed: 11/02/2022]
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Taylor AC, González CH, Miller BS, Edgington RJ, Ferretti P, Jackman RB. Surface functionalisation of nanodiamonds for human neural stem cell adhesion and proliferation. Sci Rep 2017; 7:7307. [PMID: 28779095 PMCID: PMC5544760 DOI: 10.1038/s41598-017-07361-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 06/26/2017] [Indexed: 12/17/2022] Open
Abstract
Biological systems interact with nanostructured materials on a sub-cellular level. These interactions may govern cell behaviour and the precise control of a nanomaterial's structure and surface chemistry allow for a high degree of tunability to be achieved. Cells are surrounded by an extra-cellular matrix with nano-topographical properties. Diamond based materials, and specifically nanostructured diamond has attracted much attention due to its extreme electrical and mechanical properties, chemical inertness and biocompatibility. Here the interaction of nanodiamond monolayers with human Neural Stem Cells (hNSCs) has been investigated. The effect of altering surface functionalisation of nanodiamonds on hNSC adhesion and proliferation has shown that confluent cellular attachment occurs on oxygen terminated nanodiamonds (O-NDs), but not on hydrogen terminated nanodiamonds (H-NDs). Analysis of H and O-NDs by Atomic Force Microscopy, contact angle measurements and protein adsorption suggests that differences in topography, wettability, surface charge and protein adsorption of these surfaces may underlie the difference in cellular adhesion of hNSCs reported here.
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Affiliation(s)
- Alice C Taylor
- London Centre for Nanotechnology and Department of Electronic and Electrical Engineering, University College London, 17-19 Gordon Street, London, WC1H 0AH, UK
| | - Citlali Helenes González
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH, UK
| | - Benjamin S Miller
- London Centre for Nanotechnology and Department of Electronic and Electrical Engineering, University College London, 17-19 Gordon Street, London, WC1H 0AH, UK
| | - Robert J Edgington
- London Centre for Nanotechnology and Department of Electronic and Electrical Engineering, University College London, 17-19 Gordon Street, London, WC1H 0AH, UK
| | - Patrizia Ferretti
- Stem Cell and Regenerative Medicine Section, UCL Great Ormond Street Institute of Child Health, University College London, 30 Guilford Street, London, WC1N 1EH, UK
| | - Richard B Jackman
- London Centre for Nanotechnology and Department of Electronic and Electrical Engineering, University College London, 17-19 Gordon Street, London, WC1H 0AH, UK.
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6
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Relationships between surface roughness/stiffness of chitosan coatings and fabrication of corneal keratocyte spheroids: Effect of degree of deacetylation. Colloids Surf B Biointerfaces 2016; 142:105-113. [DOI: 10.1016/j.colsurfb.2016.02.051] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/30/2016] [Accepted: 02/24/2016] [Indexed: 12/17/2022]
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7
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Grabowska I, Dehaen W, Radecka H, Radecki J. Exploring of protein – protein interactions at the solid – aqueous interface by means of contact angle measurements. Colloids Surf B Biointerfaces 2016; 141:558-564. [DOI: 10.1016/j.colsurfb.2016.02.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 01/15/2016] [Accepted: 02/02/2016] [Indexed: 12/25/2022]
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8
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Preparation of hydrocarbon/fluorocarbon double-chain phospholipid polymer brusheson polyurethane films by ATRP. Colloids Surf B Biointerfaces 2015; 128:36-43. [DOI: 10.1016/j.colsurfb.2015.02.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/02/2015] [Accepted: 02/06/2015] [Indexed: 11/23/2022]
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9
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Stewart E, Kobayashi NR, Higgins MJ, Quigley AF, Jamali S, Moulton SE, Kapsa RMI, Wallace GG, Crook JM. Electrical stimulation using conductive polymer polypyrrole promotes differentiation of human neural stem cells: a biocompatible platform for translational neural tissue engineering. Tissue Eng Part C Methods 2014; 21:385-93. [PMID: 25296166 DOI: 10.1089/ten.tec.2014.0338] [Citation(s) in RCA: 121] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Conductive polymers (CPs) are organic materials that hold great promise for biomedicine. Potential applications include in vitro or implantable electrodes for excitable cell recording and stimulation and conductive scaffolds for cell support and tissue engineering. In this study, we demonstrate the utility of electroactive CP polypyrrole (PPy) containing the anionic dopant dodecylbenzenesulfonate (DBS) to differentiate novel clinically relevant human neural stem cells (hNSCs). Electrical stimulation of PPy(DBS) induced hNSCs to predominantly β-III Tubulin (Tuj1) expressing neurons, with lower induction of glial fibrillary acidic protein (GFAP) expressing glial cells. In addition, stimulated cultures comprised nodes or clusters of neurons with longer neurites and greater branching than unstimulated cultures. Cell clusters showed a similar spatial distribution to regions of higher conductivity on the film surface. Our findings support the use of electrical stimulation to promote neuronal induction and the biocompatibility of PPy(DBS) with hNSCs and opens up the possibility of identifying novel mechanisms of fate determination of differentiating human stem cells for advanced in vitro modeling, translational drug discovery, and regenerative medicine.
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Affiliation(s)
- Elise Stewart
- 1 ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong , Squires Way, Fairy Meadow, Australia
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10
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Natalia B, Henry A, Betty L, Marina RL, Roberto R. Probing poly(N-isopropylacrylamide-co-butylacrylate)/cell interactions by atomic force microscopy. J Biomed Mater Res A 2014; 103:145-53. [DOI: 10.1002/jbm.a.35163] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Revised: 03/05/2014] [Accepted: 03/07/2014] [Indexed: 01/16/2023]
Affiliation(s)
- Becerra Natalia
- Department of Informatics Bioengineering; Robotics and System Engineering (DIBRIS), University of Genova; Via Opera Pia, 13 Genova Italy
- Grupo Ciencia de Materiales. Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA; Calle 70 No 52-21 Medellín Colombia
- Grupo Ingeniería de Tejidos y Terapia celular Facultad de Medicina Laboratorio Terapia celular y Biobanco; IPS Universitaria, Universidad de Antioquia UdeA; Calle 70 No 52-21 Medellín Colombia
| | - Andrade Henry
- Department of Informatics Bioengineering; Robotics and System Engineering (DIBRIS), University of Genova; Via Opera Pia, 13 Genova Italy
- Centro de Bioingeniería; Universidad Pontificia Bolivariana; Circular 1 No. 73-76; Bloque 22C Medellín Colombia
| | - López Betty
- Grupo Ciencia de Materiales. Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA; Calle 70 No 52-21 Medellín Colombia
| | - Restrepo Luz Marina
- Grupo Ingeniería de Tejidos y Terapia celular Facultad de Medicina Laboratorio Terapia celular y Biobanco; IPS Universitaria, Universidad de Antioquia UdeA; Calle 70 No 52-21 Medellín Colombia
| | - Raiteri Roberto
- Department of Informatics Bioengineering; Robotics and System Engineering (DIBRIS), University of Genova; Via Opera Pia, 13 Genova Italy
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11
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Xing J, Li Y, Lin M, Wang J, Wu J, Ma Y, Wang Y, Yang L, Luo Y. Surface chemistry modulates osteoblasts sensitivity to low fluid shear stress. J Biomed Mater Res A 2014; 102:4151-60. [DOI: 10.1002/jbm.a.35087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/19/2013] [Accepted: 01/17/2014] [Indexed: 12/12/2022]
Affiliation(s)
- Juan Xing
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yan Li
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Manping Lin
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Jinfeng Wang
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Jinchuan Wu
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yufei Ma
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Yuanliang Wang
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology; Ministry of Education, Chongqing University; Chongqing 400030 China
| | - Yanfeng Luo
- Research Center of Bioinspired Material Science and Engineering College of Bioengineering; Chongqing University; Chongqing 400030 China
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12
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Improved immobilization of biomolecules to quinone-rich polydopamine for efficient surface functionalization. Colloids Surf B Biointerfaces 2013; 106:66-73. [DOI: 10.1016/j.colsurfb.2013.01.033] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/30/2012] [Accepted: 01/10/2013] [Indexed: 01/13/2023]
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13
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Kalaskar DM, Downes JE, Murray P, Edgar DH, Williams RL. Characterization of the interface between adsorbed fibronectin and human embryonic stem cells. J R Soc Interface 2013; 10:20130139. [PMID: 23554347 DOI: 10.1098/rsif.2013.0139] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The cell-substrate interface plays a key role in the regulation of cell behaviour. Defining the properties of this interface is particularly important for human embryonic stem (hES) cell culture, because changes in this environment can regulate hES cell differentiation. It has been established that fibronectin-coated surfaces can promote the attachment, growth and maintenance of the undifferentiated phenotype of hES cells. We investigated the influence of the surface density of adsorbed fibronectin on hES cell behaviour in defined serum-free culture conditions and demonstrated that only 25 per cent surface saturation was required to maintain attachment, growth and maintenance of the undifferentiated phenotype. The influence of surface-adsorbed fibronectin fragments was compared with whole fibronectin, and it was demonstrated that the 120 kDa fragment central binding domain alone was able to sustain hES cells in an undifferentiated phenotype in a similar fashion to fibronectin. Furthermore, hES cell attachment to both fibronectin and the 120 kDa fragment was mediated by integrin α5β1. However, although a substrate-attached synthetic arginine-glycine-aspartic acid (RGD) peptide alone was able to promote the attachment and spreading of fibroblasts, it was inactive for hES cells, indicating that stem cells have different requirements in order to attach and spread on the central fibronectin RGD-cell-binding domain. This study provides further information on the characteristics of the cell-substrate interface required to control hES cell behaviour in clearly defined serum-free conditions, which are needed for the development of therapeutic applications of hES cells.
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Affiliation(s)
- Deepak M Kalaskar
- Institute of Translational Medicine, University of Liverpool, Liverpool, UK.
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14
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Cortese B, Riehle MO, D'Amone S, Gigli G. Influence of variable substrate geometry on wettability and cellular responses. J Colloid Interface Sci 2012; 394:582-9. [PMID: 23270757 DOI: 10.1016/j.jcis.2012.11.051] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 11/23/2012] [Accepted: 11/24/2012] [Indexed: 01/13/2023]
Abstract
In this report, we evaluate the impact of a systematic change to the extracellular environment on cell morphology and functionality by combining the inherent properties of biocompatible polymers such as polydimethylsiloxane and polycaprolactone with a specific surface response. By microstructuring pillars and pits on the substrates, varying spacing and height of the structures, we investigate the role of topography in fibroblast cell adhesion and viability. The change of wetting behaviour was tailored and evaluated in terms of contact angle measurements. It was shown that the range of micro-scale physical cues at the interface between the cells and the surrounding environment affects cell shape and migrations, indicating a tendency to respond differently to higher features of the micro-scale. We found that surface topography seems dominant over material wettability, fibroblasts responded to variations in topography by altering morphology and migrating along the direction of spacing among the features biased by the height of structures and not by the material. It is therefore possible to selectively influence either cell adhesion or morphology by choosing adequate topography of the surface. This work can impact in the design of biomaterials and can be applied to implanted biomedical devices, tissue engineering scaffolds and lab on chip devices.
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Affiliation(s)
- Barbara Cortese
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Via Salaria km. 29.300, 00015 Monterotondo Stazione, Roma, Italy.
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15
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Burrows MC, Zamarion VM, Filippin-Monteiro FB, Schuck DC, Toma HE, Campa A, Garcia CRS, Catalani LH. Hybrid Scaffolds Built From PET and Collagen as a Model For Vascular Graft Architecture. Macromol Biosci 2012; 12:1660-70. [DOI: 10.1002/mabi.201200154] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Revised: 07/23/2012] [Indexed: 11/11/2022]
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16
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Preparation of water powders by the adsorption of hydrophobic nanoparticles at the surface of hydrated starch particulates. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.03.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Amim J, Petri DF. Effect of amino-terminated substrates onto surface properties of cellulose esters and their interaction with lectins. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2011.11.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Seveno D, Blake TD, Goossens S, De Coninck J. Predicting the wetting dynamics of a two-liquid system. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:14958-14967. [PMID: 22040276 DOI: 10.1021/la2034998] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We propose a new theoretical model of dynamic wetting for systems comprising two immiscible liquids, in which one liquid displaces another from the surface of a solid. Such systems are important in many industrial processes and the natural world. The new model is an extension of the molecular-kinetic theory of wetting and offers a way to predict the dynamics of a two-liquid system from the individual wetting dynamics of its parent liquids. We also present the results of large-scale molecular dynamics simulations for one- and two-liquid systems and show them to be in good agreement with the new model. Finally, we show that the new model is consistent with the limited data currently available from experiment.
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Affiliation(s)
- D Seveno
- Laboratory of Surface and Interfacial Physics, Université de Mons, 20 place du parc, 7000 Mons, Belgium.
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19
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Rodríguez-Seguí SA, Pons Ximénez JI, Sevilla L, Ruiz A, Colpo P, Rossi F, Martínez E, Samitier J. Quantification of protein immobilization on substrates for cellular microarray applications. J Biomed Mater Res A 2011; 98:245-56. [PMID: 21626656 DOI: 10.1002/jbm.a.33089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Revised: 10/11/2010] [Accepted: 02/03/2011] [Indexed: 11/07/2022]
Abstract
Cellular microarray developments and its applications are the next step after DNA and protein microarrays. The choice of the surface chemistry of the substrates used for the implementation of this technique, that must favor proper protein immobilization while avoiding cell adhesion on the nonspotted areas, presents a complex challenge. This is a key issue since usually the best nonfouling surfaces are also the ones that retain immobilized the smallest amounts of printed protein. To quantitatively assess the amount of protein immobilization, in this study several combinations of fluorescently labeled fibronectin (Fn*) and streptavidin (SA*) were microspotted, with and without glycerol addition in the printing buffer, on several substrates suitable for cellular microarrays. The substrates assayed included chemically activated surfaces as well as Poly ethylene oxide (PEO) films that are nonfouling in solution but accept adhesion of proteins in dry conditions. The results showed that the spotted Fn* was retained by all the surfaces, although the PEO surface did show smaller amounts of immobilization. The SA*, on the other hand, was only retained by the chemically activated surfaces. The inclusion of glycerol in the printing buffer significantly reduced the immobilization of both proteins. The results presented in this article provide quantitative evidence of the convenience of using a chemically activated surface to immobilize proteins relevant for cellular microarray applications, particularly when ECM proteins are cospotted with smaller factors which are more difficult to be retained by the surfaces.
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Affiliation(s)
- Santiago A Rodríguez-Seguí
- Nanobioengineering group, Institute for Bioengineering of Catalonia, Baldiri i Reixac 10-12, 08028 Barcelona, Spain.
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20
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Patel A, Mequanint K. Synthesis and characterization of polyurethane-block-poly(2-hydroxyethyl methacrylate) hydrogels and their surface modification to promote cell affinity. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511398713] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Physically crosslinked hydrogels based on poly(2-hydroxyethyl methacrylate) (PHEMA) and polyurethane macroiniferter (PUMI) were prepared. The synthesis of polyurethane- block-poly(2-hydroxyethyl methacrylate) (PU-b-PHEMA) was verified by spectroscopic analyses. Due to the low fibronectin adsorption from culture media, cell attachment on PU-b-PHEMA surface was poor compared with the PUMI control. To improve the cell affinity of PU-b-PHEMA, fibronectin was conjugated via surface hydroxyl groups. These biomimetic PU-b-PHEMA hydrogel surfaces were tested for tissue engineering applications. A short-term cell culture study revealed that, compared with the unmodified PU-b-PHEMA, fibronectin-conjugated PU-b-PHEMA hydrogel showed more uniform and dense cell attachment and spreading, indicating a potential use for tissue engineering applications.
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Affiliation(s)
- Alpesh Patel
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON, N6A 5B9, Canada
| | - Kibret Mequanint
- Department of Chemical and Biochemical Engineering, The University of Western Ontario, London, ON, N6A 5B9, Canada,
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21
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Liu C, McKenna FM, Liang H, Johnstone A, Abel EW. Enhanced Cell Colonization of Collagen Scaffold by Ultraviolet/Ozone Surface Processing. Tissue Eng Part C Methods 2010; 16:1305-14. [DOI: 10.1089/ten.tec.2009.0769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Chaozong Liu
- Advanced Materials and Biomaterials Research Centre, School of Engineering, NRP Joint Research Institute for Medical Technology, The Robert Gordon University, Aberdeen, United Kingdom
| | - Fiona-Mairead McKenna
- Advanced Materials and Biomaterials Research Centre, School of Engineering, NRP Joint Research Institute for Medical Technology, The Robert Gordon University, Aberdeen, United Kingdom
| | - He Liang
- Advanced Materials and Biomaterials Research Centre, School of Engineering, NRP Joint Research Institute for Medical Technology, The Robert Gordon University, Aberdeen, United Kingdom
| | - Alan Johnstone
- Trauma Unit, Aberdeen Royal Infirmary, Aberdeen, United Kingdom
| | - Eric W. Abel
- School of Engineering & Physical Science, Dundee University, Dundee, United Kingdom
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22
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Dario AF, de Paula RC, Paula HC, Feitosa JP, Petri DF. Effect of solvent on the adsorption behavior and on the surface properties of Sterculia striata polysaccharide. Carbohydr Polym 2010. [DOI: 10.1016/j.carbpol.2010.02.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Jin K, Youn Lee D, Je J, Keun Lee Y, Nam Kim K, Mahn Kim K. The surface profile and biocompatibility of hydroxyapatiteblasted gold membrane as a periodontal guided tissue regeneration membrane. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Abstract
The interaction between cells and nanostructured materials is attracting increasing interest, because of the possibility to open up novel concepts for the design of smart nanobiomaterials with active biological functionalities. In this frame we investigated the response of human neuroblastoma cell line (SH-SY5Y) to gold surfaces with different levels of nanoroughness. To achieve a precise control of the nanoroughness with nanometer resolution, we exploited a wet chemistry approach based on spontaneous galvanic displacement reaction. We demonstrated that neurons sense and actively respond to the surface nanotopography, with a surprising sensitivity to variations of few nanometers. We showed that focal adhesion complexes, which allow cellular sensing, are strongly affected by nanostructured surfaces, leading to a marked decrease in cell adhesion. Moreover, cells adherent on nanorough surfaces exhibit loss of neuron polarity, Golgi apparatus fragmentation, nuclear condensation, and actin cytoskeleton that is not functionally organized. Apoptosis/necrosis assays established that nanoscale features induce cell death by necrosis, with a trend directly related to roughness values. Finally, by seeding SH-SY5Y cells onto micropatterned flat and nanorough gold surfaces, we demonstrated the possibility to realize substrates with cytophilic or cytophobic behavior, simply by fine-tuning their surface topography at nanometer scale. Specific and functional adhesion of cells occurred only onto flat gold stripes, with a clear self-alignment of neurons, delivering a simple and elegant approach for the design and development of biomaterials with precise nanostructure-triggered biological responses.
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Brodland GW, Yang J, Sweny J. Cellular interfacial and surface tensions determined from aggregate compression tests using a finite element model. HFSP JOURNAL 2009; 3:273-81. [PMID: 20057960 DOI: 10.2976/1.3175812] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Accepted: 06/20/2009] [Indexed: 12/26/2022]
Abstract
Although previous studies suggested that the interfacial tension gamma(cc) acting along cell-cell boundaries and the effective viscosity mu of the cell cytoplasm could be measured by compressing a spherical aggregate of cells between parallel plates, the mechanical understanding necessary to extract this information from these tests-tests that have provided the surface tension sigma(cm) acting along cell-medium interfaces-has been lacking. These tensions can produce net forces at the subcellular level and give rise to cell motions and tissue reorganization, the rates of which are regulated by mu. Here, a three-dimensional (3D) cell-based finite element model provides insight into the mechanics of the compression test, where these same forces are at work, and leads to quantitative relationships from which the effective viscosity mu of the cell cytoplasm, the tension gamma(cc) that acts along internal cell-cell interfaces and the surface tension sigma(cp) along the cell-platen boundaries can be determined from force-time curves and aggregate profiles. Tests on 5-day embryonic chick mesencephalon, neural retina, liver, and heart aggregates show that all of these properties vary significantly with cell type, except gamma(cc), which is remarkably constant. These properties are crucial for understanding cell rearrangement and tissue self-organization in contexts that include embryogenesis, cancer metastases, and tissue engineering.
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