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Sonatkar J, Kandasubramanian B. Bioactive glass with biocompatible polymers for bone applications. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Mas-Moruno C, Su B, Dalby MJ. Multifunctional Coatings and Nanotopographies: Toward Cell Instructive and Antibacterial Implants. Adv Healthc Mater 2019; 8:e1801103. [PMID: 30468010 DOI: 10.1002/adhm.201801103] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/15/2018] [Indexed: 01/02/2023]
Abstract
In biomaterials science, it is nowadays well accepted that improving the biointegration of dental and orthopedic implants with surrounding tissues is a major goal. However, implant surfaces that support osteointegration may also favor colonization of bacterial cells. Infection of biomaterials and subsequent biofilm formation can have devastating effects and reduce patient quality of life, representing an emerging concern in healthcare. Conversely, efforts toward inhibiting bacterial colonization may impair biomaterial-tissue integration. Therefore, to improve the long-term success of medical implants, biomaterial surfaces should ideally discourage the attachment of bacteria without affecting eukaryotic cell functions. However, most current strategies seldom investigate a combined goal. This work reviews recent strategies of surface modification to simultaneously address implant biointegration while mitigating bacterial infections. To this end, two emerging solutions are considered, multifunctional chemical coatings and nanotopographical features.
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Affiliation(s)
- Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group; Department of Materials Science and Engineering & Center in Multiscale Science and Engineering; Universitat Politècnica de Catalunya (UPC); Barcelona 08019 Spain
| | - Bo Su
- Bristol Dental School; University of Bristol; Bristol BS1 2LY UK
| | - Matthew J. Dalby
- Centre for Cell Engineering; University of Glasgow; Glasgow G12 UK
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Controllable and durable release of BMP-2-loaded 3D porous sulfonated polyetheretherketone (PEEK) for osteogenic activity enhancement. Colloids Surf B Biointerfaces 2018; 171:668-674. [DOI: 10.1016/j.colsurfb.2018.08.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/02/2018] [Accepted: 08/07/2018] [Indexed: 01/07/2023]
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Wang PY, Thissen H, Kingshott P. Modulation of human multipotent and pluripotent stem cells using surface nanotopographies and surface-immobilised bioactive signals: A review. Acta Biomater 2016; 45:31-59. [PMID: 27596488 DOI: 10.1016/j.actbio.2016.08.054] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 07/30/2016] [Accepted: 08/30/2016] [Indexed: 02/08/2023]
Abstract
The ability to control the interactions of stem cells with synthetic surfaces is proving to be effective and essential for the quality of passaged stem cells and ultimately the success of regenerative medicine. The stem cell niche is crucial for stem cell self-renewal and differentiation. Thus, mimicking the stem cell niche, and here in particular the extracellular matrix (ECM), in vitro is an important goal for the expansion of stem cells and their applications. Here, surface nanotopographies and surface-immobilised biosignals have been identified as major factors that control stem cell responses. The development of tailored surfaces having an optimum nanotopography and displaying suitable biosignals is proposed to be essential for future stem cell culture, cell therapy and regenerative medicine applications. While early research in the field has been restricted by the limited availability of micro- and nanofabrication techniques, new approaches involving the use of advanced fabrication and surface immobilisation methods are starting to emerge. In addition, new cell types such as induced pluripotent stem cells (iPSCs) have become available in the last decade, but have not been fully understood. This review summarises significant advances in the area and focuses on the approaches that are aimed at controlling the behavior of human stem cells including maintenance of their self-renewal ability and improvement of their lineage commitment using nanotopographies and biosignals. More specifically, we discuss developments in biointerface science that are an important driving force for new biomedical materials and advances in bioengineering aiming at improving stem cell culture protocols and 3D scaffolds for clinical applications. Cellular responses revolve around the interplay between the surface properties of the cell culture substrate and the biomolecular composition of the cell culture medium. Determination of the precise role played by each factor, as well as the synergistic effects amongst the factors, all of which influence stem cell responses is essential for future developments. This review provides an overview of the current state-of-the-art in the design of complex material surfaces aimed at being the next generation of tools tailored for applications in cell culture and regenerative medicine. STATEMENT OF SIGNIFICANCE This review focuses on the effect of surface nanotopographies and surface-bound biosignals on human stem cells. Recently, stem cell research attracts much attention especially the induced pluripotent stem cells (iPSCs) and direct lineage reprogramming. The fast advance of stem cell research benefits disease treatment and cell therapy. On the other hand, surface property of cell adhered materials has been demonstrated very important for in vitro cell culture and regenerative medicine. Modulation of cell behavior using surfaces is costeffective and more defined. Thus, we summarise the recent progress of modulation of human stem cells using surface science. We believe that this review will capture a broad audience interested in topographical and chemical patterning aimed at understanding complex cellular responses to biomaterials.
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Francis L, Meng D, Locke IC, Knowles JC, Mordan N, Salih V, Boccaccini AR, Roy I. Novel poly(3-hydroxybutyrate) composite films containing bioactive glass nanoparticles for wound healing applications. POLYM INT 2016. [DOI: 10.1002/pi.5108] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lydia Francis
- Faculty of Science and Technology; University of Westminster; 115 New Cavendish Street London W1W 6UW UK
| | - Decheng Meng
- Department of Materials; Imperial College London; Prince Consort Road London SW7 2BP UK
| | - Ian C Locke
- Faculty of Science and Technology; University of Westminster; 115 New Cavendish Street London W1W 6UW UK
| | - Jonathan C Knowles
- UCL Eastman Dental Institute; University College London; 256 Gray's Inn Road London WC1X 8LD UK
| | - Nicola Mordan
- UCL Eastman Dental Institute; University College London; 256 Gray's Inn Road London WC1X 8LD UK
| | - Vehid Salih
- UCL Eastman Dental Institute; University College London; 256 Gray's Inn Road London WC1X 8LD UK
- Plymouth University Peninsula School of Medicine & Dentistry Plymouth, Devon; PL4 8AA UK
| | - Aldo R Boccaccini
- Department of Materials; Imperial College London; Prince Consort Road London SW7 2BP UK
- Institute of Biomaterials, Department of Materials Science and Engineering; University of Erlangen-Nuremberg; Cauerstr. 6 91058 Erlangen Germany
| | - Ipsita Roy
- Faculty of Science and Technology; University of Westminster; 115 New Cavendish Street London W1W 6UW UK
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Lim JY, Siedlecki CA, Donahue HJ. Nanotopographic cell culture substrate: polymer-demixed nanotextured films under cell culture conditions. Biores Open Access 2013; 1:252-5. [PMID: 23515067 PMCID: PMC3559240 DOI: 10.1089/biores.2012.0255] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Modulating physical cell culture environments via nanoscale substrate topographic modification has recently been of significant interest in regenerative medicine. Many studies have utilized a polymer-demixing technique to produce nanotextured films and showed that cellular adhesion, proliferation, and differentiation could be regulated by the shape and scale of the polymer-demixed nanotopographies. However, little attention has been paid to the topographic fidelity of the polymer-demixed films when exposed to cell culture conditions. In this brief article, two polymer-demixing systems were employed to assess topographic changes in polymer-demixed films after fibronectin (FN) extracellular matrix protein adsorption and after incubation in phosphate-buffered saline at 37°C. We showed that FN adsorption induced very small variations (<2 nm) to the polystyrene/polybromostyrene (PS/PBrS)-demixed nanoisland textures, not substantially altering the nanotopographies given by the polymer demixing. In addition, poly(L-lactic acid)/PS (PLLA/PS)-demixed nanoisland topographies using PLLA with M w=50×10(3) did not show notable degradation up to day 24.
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Affiliation(s)
- Jung Yul Lim
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska
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Bryington M, Mendonça G, Nares S, Cooper LF. Osteoblastic and cytokine gene expression of implant-adherent cells in humans. Clin Oral Implants Res 2012; 25:52-8. [PMID: 23057568 DOI: 10.1111/clr.12054] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2012] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Implant surface topography is a key determinant affecting osteoblastic differentiation and cell-cell signaling of implant-adherent cells. MATERIALS AND METHODS To assess the early osteoinductive and cell-cell signaling events in adherent cells, commercially pure titanium implants (2.2 × 5 mm) with nanotopography (HF-treated TiO2 grit-blasted) were compared with micron-scale topography TiO2 grit-blasted (micron-scale, control) implants in vivo. Six implants (n = 3/surface) were placed in 10 systemically healthy subjects and removed by reverse threading at 1, 3, and 7 days. Gene expression profiles of adherent cells were interrogated using low-density RT-PCR arrays. RESULTS Osteoinduction was not observed at day 1 on either surface. At 3 days, elevated levels of BMP6, osteopontin, and osterix (OSX) were observed in RNA of cells adherent to both micron-scale and nanotopography surfaces. Both surfaces supported osteoinductive gene expression at 7 days; however, modest elevations of most mRNAs and significantly higher OSX mRNA levels were measured for cells adhered to nanotopography implants. Further, chemokine and cytokine profiles including CXCL10, CXCL14, IL-9, IL-22, and TOLLIP were upregulated on nanotopographic surfaces as compared with microtopographic surfaces. CONCLUSIONS Implants with superimposed nanoscale topography generate a greater induction of genes linked to osteogenesis and cell-cell signaling during the early phases of osseointegration.
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Affiliation(s)
- Matthew Bryington
- Department of Prosthodontics, University of North Carolina, Chapel Hill, NC, USA; Department of Prosthodontics, Ohio State University, Columbus, OH, USA
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Arora P, Sindhu A, Dilbaghi N, Chaudhury A, Rajakumar G, Rahuman AA. Nano-regenerative medicine towards clinical outcome of stem cell and tissue engineering in humans. J Cell Mol Med 2012; 16:1991-2000. [PMID: 22260258 PMCID: PMC3822969 DOI: 10.1111/j.1582-4934.2012.01534.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Accepted: 01/10/2012] [Indexed: 01/24/2023] Open
Abstract
Nanotechnology is a fast growing area of research that aims to create nanomaterials or nanostructures development in stem cell and tissue-based therapies. Concepts and discoveries from the fields of bio nano research provide exciting opportunities of using stem cells for regeneration of tissues and organs. The application of nanotechnology to stem-cell biology would be able to address the challenges of disease therapeutics. This review covers the potential of nanotechnology approaches towards regenerative medicine. Furthermore, it focuses on current aspects of stem- and tissue-cell engineering. The magnetic nanoparticles-based applications in stem-cell research open new frontiers in cell and tissue engineering.
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Affiliation(s)
- Pooja Arora
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Annu Sindhu
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Neeraj Dilbaghi
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
| | - Ashok Chaudhury
- Department of Bio and Nano Technology, Guru Jambheshwar University of Science and TechnologyHisar, Haryana, India
- Crop Science Department, North Carolina State UniversityRaleigh, NC, USA
| | - Govindasamy Rajakumar
- Unit of Nanotechnology and Bioactive Natural Products, C. Abdul Hakeem CollegeVellore, Tamil Nadu, India
| | - Abdul Abdul Rahuman
- Unit of Nanotechnology and Bioactive Natural Products, C. Abdul Hakeem CollegeVellore, Tamil Nadu, India
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Gordon K, Sannigrahi B, Mcgeady P, Wang XQ, Mendenhall J, Khan IM. Synthesis of Optically Active Helical Poly(2-methoxystyrene). Enhancement of HeLa and Osteoblast Cell Growth on Optically Active Helical Poly(2-methoxystyrene) Surfaces. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 20:2055-72. [DOI: 10.1163/156856208x399116] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Keith Gordon
- a Department of Chemistry, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA; NASA Langley Research Center, Hampton, VA 23681, USA
| | - Biswajit Sannigrahi
- b Department of Chemistry, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA
| | - Paul Mcgeady
- c Department of Chemistry, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA
| | - X. Q. Wang
- d Department of Physics, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA
| | - Juana Mendenhall
- e Department of Chemistry, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA
| | - Ishrat M. Khan
- f Department of Chemistry, Clark Atlanta University, 223 James P. Brawley Drive, Atlanta, GA 30314, USA
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Guaccio A, Guarino V, Perez MAA, Cirillo V, Netti PA, Ambrosio L. Influence of electrospun fiber mesh size on hMSC oxygen metabolism in 3D collagen matrices: Experimental and theoretical evidences. Biotechnol Bioeng 2011; 108:1965-76. [DOI: 10.1002/bit.23113] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2010] [Revised: 01/17/2011] [Accepted: 02/14/2011] [Indexed: 12/14/2022]
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Yang Y, Leong KW. Nanoscale surfacing for regenerative medicine. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2010; 2:478-95. [PMID: 20803682 DOI: 10.1002/wnan.74] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cells in most tissues reside in microenvironment surrounded with specific three-dimensional features. The extracellular matrix or substratum with which cells interact often includes topography at the nanoscale. For example, the basement membrane of many tissues displays features of pores, fibers and ridges in the nanometer range. The nanoscale topography has significant effects on cellular behavior. Knowledge of the cell-substratum interactions is crucial to the understanding of many fundamental biological questions and to regenerative medicine. Rapid advances in nanotechnology enable cellular study on engineered nanoscale surfaces. Recent findings underscore the phenomenon that mammalian cells do respond to nanosized features on a synthetic surface. This review covers the commonly used techniques of engineering nanoscale surface and the techniques which have not been adapted but are of great potential in regenerative medicine, surveys the applications of nanoscale surface in regenerative medicine including vascular, bone, neural and stem cell tissue engineering, and discusses the possible mechanisms of cellular responses to nanoscale surface. A better understanding of the interactions between cells and nanoscale surfacing will help advance the field of regenerative medicine.
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Affiliation(s)
- Yong Yang
- Department of Biomedical Engineering, Duke University, Durham, NC, USA
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12
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Surface Roughening of Polystyrene and Poly(methyl methacrylate) in Ar/O2 Plasma Etching. Polymers (Basel) 2010. [DOI: 10.3390/polym2040649] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Alves NM, Pashkuleva I, Reis RL, Mano JF. Controlling cell behavior through the design of polymer surfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:2208-20. [PMID: 20848593 DOI: 10.1002/smll.201000233] [Citation(s) in RCA: 209] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Polymers have gained a remarkable place in the biomedical field as materials for the fabrication of various devices and for tissue engineering applications. The initial acceptance or rejection of an implantable device is dictated by the crosstalk of the material surface with the bioentities present in the physiological environment. Advances in microfabrication and nanotechnology offer new tools to investigate the complex signaling cascade induced by the components of the extracellular matrix and consequently allow cellular responses to be tailored through the mimicking of some elements of the signaling paths. Patterning methods and selective chemical modification schemes at different length scales can provide biocompatible surfaces that control cellular interactions on the micrometer and sub-micrometer scales on which cells are organized. In this review, the potential of chemically and topographically structured micro- and nanopolymer surfaces are discussed in hopes of a better understanding of cell-biomaterial interactions, including the recent use of biomimetic approaches or stimuli-responsive macromolecules. Additionally, the focus will be on how the knowledge obtained using these surfaces can be incorporated to design biocompatible materials for various biomedical applications, such as tissue engineering, implants, cell-based biosensors, diagnostic systems, and basic cell biology. The review focusses on the research carried out during the last decade.
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Affiliation(s)
- Natália M Alves
- 3B'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
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Anselme K, Davidson P, Popa A, Giazzon M, Liley M, Ploux L. The interaction of cells and bacteria with surfaces structured at the nanometre scale. Acta Biomater 2010; 6:3824-46. [PMID: 20371386 DOI: 10.1016/j.actbio.2010.04.001] [Citation(s) in RCA: 451] [Impact Index Per Article: 32.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 03/30/2010] [Accepted: 04/01/2010] [Indexed: 12/22/2022]
Abstract
The current development of nanobiotechnologies requires a better understanding of cell-surface interactions on the nanometre scale. Recently, advances in nanoscale patterning and detection have allowed the fabrication of appropriate substrates and the study of cell-substrate interactions. In this review we discuss the methods currently available for nanoscale patterning and their merits, as well as techniques for controlling the surface chemistry of materials at the nanoscale without changing the nanotopography and the possibility of truly characterizing the surface chemistry at the nanoscale. We then discuss the current knowledge of how a cell can interact with a substrate at the nanoscale and the effect of size, morphology, organization and separation of nanofeatures on cell response. Moreover, cell-substrate interactions are mediated by the presence of proteins adsorbed from biological fluids on the substrate. Many questions remain on the effect of nanotopography on protein adsorption. We review papers related to this point. As all these parameters have an influence on cell response, it is important to develop specific studies to point out their relative influence, as well as the biological mechanisms underlying cell responses to nanotopography. This will be the basis for future research in this field. An important topic in tissue engineering is the effect of nanoscale topography on bacteria, since cells have to compete with bacteria in many environments. The limited current knowledge of this topic is also discussed in the light of using topography to encourage cell adhesion while limiting bacterial adhesion. We also discuss current and prospective applications of cell-surface interactions on the nanoscale. Finally, based on questions raised previously that remain to be solved in the field, we propose future directions of research in materials science to help elucidate the relative influence of the physical and chemical aspects of nanotopography on bacteria and cell response with the aim of contributing to the development of nanobiotechnologies.
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Gerhardt LC, Boccaccini AR. Bioactive Glass and Glass-Ceramic Scaffolds for Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2010; 3:3867-3910. [PMID: 28883315 PMCID: PMC5445790 DOI: 10.3390/ma3073867] [Citation(s) in RCA: 441] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2010] [Accepted: 06/29/2010] [Indexed: 12/24/2022]
Abstract
Traditionally, bioactive glasses have been used to fill and restore bone defects. More recently, this category of biomaterials has become an emerging research field for bone tissue engineering applications. Here, we review and discuss current knowledge on porous bone tissue engineering scaffolds on the basis of melt-derived bioactive silicate glass compositions and relevant composite structures. Starting with an excerpt on the history of bioactive glasses, as well as on fundamental requirements for bone tissue engineering scaffolds, a detailed overview on recent developments of bioactive glass and glass-ceramic scaffolds will be given, including a summary of common fabrication methods and a discussion on the microstructural-mechanical properties of scaffolds in relation to human bone (structure-property and structure-function relationship). In addition, ion release effects of bioactive glasses concerning osteogenic and angiogenic responses are addressed. Finally, areas of future research are highlighted in this review.
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Affiliation(s)
| | - Aldo R Boccaccini
- Department of Materials, Imperial College London, Prince Consort Road, London SW7 2BP, UK.
- Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany.
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Biggs MJP, Richards RG, Dalby MJ. Nanotopographical modification: a regulator of cellular function through focal adhesions. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2010; 6:619-33. [PMID: 20138244 DOI: 10.1016/j.nano.2010.01.009] [Citation(s) in RCA: 327] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2009] [Revised: 12/02/2009] [Accepted: 01/07/2010] [Indexed: 12/25/2022]
Abstract
UNLABELLED As materials technology and the field of biomedical engineering advances, the role of cellular mechanisms, in particular adhesive interactions with implantable devices, becomes more relevant in both research and clinical practice. A key tenet of medical device design has evolved from the exquisite ability of biological systems to respond to topographical features or chemical stimuli, a process that has led to the development of next-generation biomaterials for a wide variety of clinical disorders. In vitro studies have identified nanoscale features as potent modulators of cellular behavior through the onset of focal adhesion formation. The focus of this review is on the recent developments concerning the role of nanoscale structures on integrin-mediated adhesion and cellular function with an emphasis on the generation of medical constructs with regenerative applications. FROM THE CLINICAL EDITOR In this review, recent developments related to the role of nanoscale structures on integrin-mediated adhesion and cellular function is discussed, with an emphasis on regenerative applications.
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Affiliation(s)
- Manus Jonathan Paul Biggs
- Nanotechnology Center for Mechanics in Regenerative Medicine, Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, USA.
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Kim MH, Kino-oka M, Taya M. Designing culture surfaces based on cell anchoring mechanisms to regulate cell morphologies and functions. Biotechnol Adv 2010; 28:7-16. [DOI: 10.1016/j.biotechadv.2009.08.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Revised: 07/28/2009] [Accepted: 08/01/2009] [Indexed: 12/11/2022]
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Differential in-gel electrophoresis (DIGE) analysis of human bone marrow osteoprogenitor cell contact guidance. Acta Biomater 2009; 5:1137-46. [PMID: 19103513 DOI: 10.1016/j.actbio.2008.11.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2008] [Revised: 10/30/2008] [Accepted: 11/06/2008] [Indexed: 12/29/2022]
Abstract
We have used a recent comparative proteomics technique, differential in-gel electrophoresis (DIGE), to study osteoprogenitor cell response to contact guidance in grooves. In order to increase protein output from small sample sizes, we used bioreactor culture before protein extraction and gel electrophoresis. Mass spectroscopy was used for protein identification. A number of distinct proteins were observed to exhibit significant changes in expression. These changes in protein expression suggest that the cells respond to tailored grooved topographies, with alterations in their proteome concurrent with changes in osteoprogenitor phenotype.
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Advancing dental implant surface technology – From micron- to nanotopography. Biomaterials 2008; 29:3822-35. [DOI: 10.1016/j.biomaterials.2008.05.012] [Citation(s) in RCA: 712] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Accepted: 05/11/2008] [Indexed: 12/18/2022]
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20
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Plasma etch removal of poly(methyl methacrylate) in block copolymer lithography. ACTA ACUST UNITED AC 2008. [DOI: 10.1116/1.2966433] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Dalby MJ, Gadegaard N, Wilkinson CDW. The response of fibroblasts to hexagonal nanotopography fabricated by electron beam lithography. J Biomed Mater Res A 2008; 84:973-9. [PMID: 17647239 DOI: 10.1002/jbm.a.31409] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
It has been known for many years that cells will react to the shape of their microenvironment. It is more recently becoming clear that cells can alter their morphology, adhesions, and cytoskeleton in response to their nanoenvironment. A few studies have gone further and measured cellular response to high-adhesion nanomaterials. There have, however, been practical difficulties associated with genomic studies focusing on low-adhesion nanotopographies. Because of advancement in fabrication techniques allowing the production of large area of structure and the ability to amplify mRNA prior to microarray hybridization, these difficulties can be overcome. Here, electron beam lithography has been used to fabricate arrays of pits with 120 nm diameters, 100 nm depth and 300 nm center to center spacing in hexagonal arrangement. Electron and fluorescent microscopies have been used to observe morphological changes in fibroblasts cultured on the pits. 1.7k gene microarray was used to gauge genomic response to the pits. The results show reduction in cellular adhesion, decrease in spreading, and a broad genomic down-regulation. Also noted was an increase in endocytotic activity in cells on the pits.
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Affiliation(s)
- Matthew J Dalby
- Centre for Cell Engineering, Institute of Biomedical and Life Sciences, Joseph Black Building, University of Glasgow, Glasgow, G12 8QQ, Scotland, United Kingdom.
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