1
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Maia JR, Castanheira E, Rodrigues JMM, Sobreiro-Almeida R, Mano JF. Engineering natural based nanocomposite inks via interface interaction for extrusion 3D printing. Methods 2023; 212:39-57. [PMID: 36934614 DOI: 10.1016/j.ymeth.2023.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/19/2023] Open
Abstract
Nanocomposites and low-viscous materials lack translation in additive manufacturing technologies due to deficiency in rheological requirements and heterogeneity of their preparation. This work proposes the chemical crosslinking between composing phases as a universal approach for mitigating such issues. The model system is composed of amine-functionalized bioactive glass nanoparticles (BGNP) and light-responsive methacrylated bovine serum albumin (BSAMA) which further allows post-print photocrosslinking. The interfacial interaction was conducted by 1-Ethyl-3-(3-dimethylaminopropyl)carbodiimide crosslinking agent and N-Hydroxysuccinimide between BGNP-grafted amines and BSAMA's carboxylic groups. Different chemical crosslinking amounts and percentages of BGNP in the nanocomposites were tested. The improved interface interactions increased the elastic and viscous modulus of all formulations. More pronounced increases were found with the highest crosslinking agent amounts (4 % w/v) and BGNP concentrations (10 % w/w). This formulation also displayed the highest Young's modulus of the double-crosslinked construct. All composite formulations could effectively immobilize the BGNP and turn an extremely low viscous material into an appropriate inks for 3d printing technologies, attesting for the systems' tunability. Thus, we describe a versatile methodology which can successfully render tunable and light-responsive nanocomposite inks with homogeneously distributed bioactive fillers. This system can further reproducibly recapitulate phases of other natures, broadening applicability.
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Affiliation(s)
- João Rocha Maia
- Department of Chemistry, CICECO - Aveiro Institute of Materials, Aveiro, Portugal
| | - Edgar Castanheira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, Aveiro, Portugal
| | - João M M Rodrigues
- Department of Chemistry, CICECO - Aveiro Institute of Materials, Aveiro, Portugal
| | | | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, Aveiro, Portugal.
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2
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Borak B, Gediga K, Piszcz U, Sacała E. Foliar Fertilization by the Sol-Gel Particles Containing Cu and Zn. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:165. [PMID: 36616075 PMCID: PMC9824736 DOI: 10.3390/nano13010165] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Silica particles with the size of 150-200 nm containing Ca, P, Cu or Zn ions were synthesized with the sol-gel method and tested as a foliar fertilizer on three plant species: maize Zea mays, wheat Triticum sativum and rape Brassica napus L. var napus growing on two types of soils: neutral and acidic. The aqueous suspensions of the studied particles were sprayed on the chosen leaves and also on the whole tested plants. At a specific stage of plant development determined according to the BBCH (Biologische Bundesanstalt, Bundessortenamt und CHemische Industrie) scale, the leaves and the whole plants were harvested and dried, and the content of Cu and Zn was determined with the AAS (atomic absorption spectroscopy) method. The engineered particles were compared with a water solution of CuSO4 and ZnSO4 (0.1%) used as a conventional fertilizer. In many cases, the copper-containing particles improved the metal supply to plants more effectively than the CuSO4. The zinc-containing particles had less effect on both the growth of plants and the metal concentration in the plants. All the tested particles were not toxic to the examined plants, although some of them caused a slight reduction in plants growth.
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Affiliation(s)
- Beata Borak
- Department of Mechanics, Materials and Biomedical Engineering, Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Smoluchowskiego Str. 25, 50-370 Wroclaw, Poland
| | - Krzysztof Gediga
- Department of Plant Nutrition, Institute of Soil Science, Plant Nutrition and Environmental Protection, The Faculty of Life Sciences and Technology, Grunwaldzka Str. 53, 50-357 Wroclaw, Poland
| | - Urszula Piszcz
- Department of Plant Nutrition, Institute of Soil Science, Plant Nutrition and Environmental Protection, The Faculty of Life Sciences and Technology, Grunwaldzka Str. 53, 50-357 Wroclaw, Poland
| | - Elżbieta Sacała
- Department of Plant Nutrition, Institute of Soil Science, Plant Nutrition and Environmental Protection, The Faculty of Life Sciences and Technology, Grunwaldzka Str. 53, 50-357 Wroclaw, Poland
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3
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Tavares MT, Oliveira MB, Gaspar VM, Mano JF, S. Farinha JP, Baleizão C. Efficient Single‐Dose Induction of Osteogenic Differentiation of Stem Cells Using Multi‐Bioactive Hybrid Nanocarriers. ACTA ACUST UNITED AC 2020; 4:e2000123. [DOI: 10.1002/adbi.202000123] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/10/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Márcia T. Tavares
- Department of ChemistryCICECO – Aveiro Institute of Materials University of AveiroCampus Universitário de Santiago Aveiro 3810‐193 Portugal
- Centro de Química Estrutural and Department of Chemical EngineeringInstituto Superior Técnico Universidade de Lisboa Lisboa 1049‐001 Portugal
| | - Mariana B. Oliveira
- Department of ChemistryCICECO – Aveiro Institute of Materials University of AveiroCampus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - Vítor M. Gaspar
- Department of ChemistryCICECO – Aveiro Institute of Materials University of AveiroCampus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - João F. Mano
- Department of ChemistryCICECO – Aveiro Institute of Materials University of AveiroCampus Universitário de Santiago Aveiro 3810‐193 Portugal
| | - José Paulo S. Farinha
- Centro de Química Estrutural and Department of Chemical EngineeringInstituto Superior Técnico Universidade de Lisboa Lisboa 1049‐001 Portugal
| | - Carlos Baleizão
- Centro de Química Estrutural and Department of Chemical EngineeringInstituto Superior Técnico Universidade de Lisboa Lisboa 1049‐001 Portugal
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4
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Maciel MM, Patrício SG, Borges J, Levkin PA, Correia TR, Mano JF. Thin Silica‐Based Microsheets with Controlled Geometry. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marta M. Maciel
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro Complexo de Laboratórios Tecnológicos Campus Universitário de Santiago 3810‐193 Aveiro Portugal
- Centre of Biological Engineering (CEB) University of Minho Campus de Gualtar 4710‐057 Braga Portugal
| | - Sónia G. Patrício
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro Complexo de Laboratórios Tecnológicos Campus Universitário de Santiago 3810‐193 Aveiro Portugal
| | - João Borges
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro Complexo de Laboratórios Tecnológicos Campus Universitário de Santiago 3810‐193 Aveiro Portugal
| | - Pavel A. Levkin
- Institute of Biological and Chemical Systems‐Functional Molecular Systems (IBCS‐FMS) Karlsruhe Institute of Technology (KIT) 76344 Eggenstein‐Leopoldshafen Germany
| | - Tiago R. Correia
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro Complexo de Laboratórios Tecnológicos Campus Universitário de Santiago 3810‐193 Aveiro Portugal
| | - João F. Mano
- CICECO Aveiro Institute of Materials Department of Chemistry University of Aveiro Complexo de Laboratórios Tecnológicos Campus Universitário de Santiago 3810‐193 Aveiro Portugal
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5
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Deshmukh K, Kovářík T, Křenek T, Docheva D, Stich T, Pola J. Recent advances and future perspectives of sol–gel derived porous bioactive glasses: a review. RSC Adv 2020; 10:33782-33835. [PMID: 35519068 PMCID: PMC9056785 DOI: 10.1039/d0ra04287k] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022] Open
Abstract
Sol–gel derived bioactive glasses have been extensively explored as a promising and highly porous scaffold materials for bone tissue regeneration applications owing to their exceptional osteoconductivity, osteostimulation and degradation rates.
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Affiliation(s)
- Kalim Deshmukh
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Kovářík
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Křenek
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Denitsa Docheva
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Theresia Stich
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Josef Pola
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
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6
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Vale AC, Pereira P, Barbosa AM, Torrado E, Mano JF, Alves NM. Antibacterial free-standing polysaccharide composite films inspired by the sea. Int J Biol Macromol 2019; 133:933-944. [DOI: 10.1016/j.ijbiomac.2019.04.102] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/04/2019] [Accepted: 04/13/2019] [Indexed: 12/21/2022]
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7
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Vale A, Pereira P, Barbosa A, Torrado E, Alves N. Optimization of silver-containing bioglass nanoparticles envisaging biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 94:161-168. [DOI: 10.1016/j.msec.2018.09.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 07/28/2018] [Accepted: 09/07/2018] [Indexed: 01/23/2023]
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8
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Abstract
Liquid marbles represented a significant advance in the manipulation of fluids as they used particle films to confine liquid drops, creating a robust and durable soft solid. We exploit this technology to engineering a bioactive hydrogel marble (BHM). Specifically, pristine bioactive glass nanoparticles were chemically tuned to produce biocompatible hydrophobic bioactive glass nanoparticles (H-BGNPs) that shielded a gelatin-based bead. The designed BHM shell promoted the growth of a bone-like apatite layer upon immersion in a physiological environment. The fabrication process allowed the efficient incorporation of drugs and cells into the engineered structure. The BHM provided a simultaneously controlled release of distinct encapsulated therapeutic model molecules. Moreover, the BHM sustained cell encapsulation in a 3D environment as demonstrated by an excellent in vitro stability and cytocompatibility. The engineered structures also showed potential to regulate a pre-osteoblastic cell line into osteogenic commitment. Overall, these hierarchical nanostructured and functional marbles revealed a high potential for future applications in bone tissue engineering.
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9
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The effects of morphology on physicochemical properties, bioactivity and biocompatibility of micro-/nano-bioactive glasses. ADV POWDER TECHNOL 2018. [DOI: 10.1016/j.apt.2018.04.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Zheng K, Boccaccini AR. Sol-gel processing of bioactive glass nanoparticles: A review. Adv Colloid Interface Sci 2017; 249:363-373. [PMID: 28364954 DOI: 10.1016/j.cis.2017.03.008] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Accepted: 03/20/2017] [Indexed: 12/13/2022]
Abstract
Silicate-based bioactive glass nanoparticles (BGN) are gaining increasing attention in various biomedical applications due to their unique properties. Controlled synthesis of BGN is critical to their effective use in biomedical applications since BGN characteristics, such as morphology and composition, determining the properties of BGN, are highly related to the synthesis process. In the last decade, numerous investigations focusing on BGN synthesis have been reported. BGN can mainly be produced through the conventional melt-quench approach or by sol-gel methods. The latter approaches are drawing widespread attention, considering the convenience and versatility they offer to tune the properties of BGN. In this paper, we review the strategies of sol-gel processing of BGN, including those adopting different catalysts for initiating the hydrolysis and condensation of silicate precursors as well as those combining sol-gel chemistry with other techniques. The processes and mechanism of different synthesis approaches are introduced and discussed in detail. Considering the importance of the BGN morphology and composition to their biomedical applications, strategies put forward to control the size, shape, pore structure and composition of BGN are discussed. BGN are particularly interesting biomaterials for bone-related applications, however, they also have potential for other biomedical applications, e.g. in soft tissue regeneration/repair. Therefore, in the last part of this review, recently reported applications of BGN in soft tissue repair and wound healing are presented.
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11
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Iturri J, Toca-Herrera JL. Characterization of Cell Scaffolds by Atomic Force Microscopy. Polymers (Basel) 2017; 9:E383. [PMID: 30971057 PMCID: PMC6418519 DOI: 10.3390/polym9080383] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2017] [Revised: 08/13/2017] [Accepted: 08/16/2017] [Indexed: 12/12/2022] Open
Abstract
This review reports on the use of the atomic force microscopy (AFM) in the investigation of cell scaffolds in recent years. It is shown how the technique is able to deliver information about the scaffold surface properties (e.g., topography), as well as about its mechanical behavior (Young's modulus, viscosity, and adhesion). In addition, this short review also points out the utilization of the atomic force microscope technique beyond its usual employment in order to investigate another type of basic questions related to materials physics, chemistry, and biology. The final section discusses in detail the novel uses that those alternative measuring modes can bring to this field in the future.
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Affiliation(s)
- Jagoba Iturri
- Institute for Biophysics, Department of NanoBiotechnology, University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Wien, Austria.
| | - José L Toca-Herrera
- Institute for Biophysics, Department of NanoBiotechnology, University of Natural Resources and Life Sciences, Muthgasse 11, 1190 Wien, Austria.
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12
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Moura D, Souza M, Liverani L, Rella G, Luz G, Mano J, Boccaccini A. Development of a bioactive glass-polymer composite for wound healing applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:224-232. [DOI: 10.1016/j.msec.2017.03.037] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 01/05/2017] [Accepted: 03/04/2017] [Indexed: 12/21/2022]
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13
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Rodrigues JR, Alves NM, Mano JF. Nacre-inspired nanocomposites produced using layer-by-layer assembly: Design strategies and biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 76:1263-1273. [DOI: 10.1016/j.msec.2017.02.043] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 12/05/2016] [Accepted: 02/10/2017] [Indexed: 02/08/2023]
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14
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Vieira S, Vial S, Reis RL, Oliveira JM. Nanoparticles for bone tissue engineering. Biotechnol Prog 2017; 33:590-611. [PMID: 28371447 DOI: 10.1002/btpr.2469] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 03/14/2017] [Indexed: 12/11/2022]
Abstract
Tissue engineering (TE) envisions the creation of functional substitutes for damaged tissues through integrated solutions, where medical, biological, and engineering principles are combined. Bone regeneration is one of the areas in which designing a model that mimics all tissue properties is still a challenge. The hierarchical structure and high vascularization of bone hampers a TE approach, especially in large bone defects. Nanotechnology can open up a new era for TE, allowing the creation of nanostructures that are comparable in size to those appearing in natural bone. Therefore, nanoengineered systems are now able to more closely mimic the structures observed in naturally occurring systems, and it is also possible to combine several approaches - such as drug delivery and cell labeling - within a single system. This review aims to cover the most recent developments on the use of different nanoparticles for bone TE, with emphasis on their application for scaffolds improvement; drug and gene delivery carriers, and labeling techniques. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:590-611, 2017.
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Affiliation(s)
- Sílvia Vieira
- 3B's Research Group, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Stephanie Vial
- 3B's Research Group, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
| | - J Miguel Oliveira
- 3B's Research Group, AvePark - Parque de Ciência e Tecnologia, Zona Industrial da Gandra, Barco, Guimarães, 4805-017, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Braga, Guimarães, Portugal
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15
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Leite ÁJ, Mano JF. Biomedical applications of natural-based polymers combined with bioactive glass nanoparticles. J Mater Chem B 2017; 5:4555-4568. [DOI: 10.1039/c7tb00404d] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The combination of natural polymers with nanoparticles allowed the development of functional bioinspired constructs. This review discusses the composition, design, and applications of bioinspired nanocomposite constructs based on bioactive glass nanoparticles (BGNPs).
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Affiliation(s)
- Á. J. Leite
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Guimarães
| | - J. F. Mano
- 3B's Research Group – Biomaterials
- Biodegradables and Biomimetics
- University of Minho
- Headquarters of the European Institute of Excellence of Tissue Engineering and Regenerative Medicine
- Guimarães
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16
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Vichery C, Nedelec JM. Bioactive Glass Nanoparticles: From Synthesis to Materials Design for Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E288. [PMID: 28773412 PMCID: PMC5502981 DOI: 10.3390/ma9040288] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 04/08/2016] [Accepted: 04/11/2016] [Indexed: 02/06/2023]
Abstract
Thanks to their high biocompatibility and bioactivity, bioactive glasses are very promising materials for soft and hard tissue repair and engineering. Because bioactivity and specific surface area intrinsically linked, the last decade has seen a focus on the development of highly porous and/or nano-sized materials. This review emphasizes the synthesis of bioactive glass nanoparticles and materials design strategies. The first part comprehensively covers mainly soft chemistry processes, which aim to obtain dispersible and monodispersed nanoparticles. The second part discusses the use of bioactive glass nanoparticles for medical applications, highlighting the design of materials. Mesoporous nanoparticles for drug delivery, injectable systems and scaffolds consisting of bioactive glass nanoparticles dispersed in a polymer, implant coatings and particle dispersions will be presented.
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Affiliation(s)
- Charlotte Vichery
- SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, BP 10448, Clermont-Ferrand F-63000, France.
- CNRS, UMR 6296, ICCF, Aubiere F-63178, France.
| | - Jean-Marie Nedelec
- SIGMA Clermont, Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, BP 10448, Clermont-Ferrand F-63000, France.
- CNRS, UMR 6296, ICCF, Aubiere F-63178, France.
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17
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Greasley SL, Page SJ, Sirovica S, Chen S, Martin RA, Riveiro A, Hanna JV, Porter AE, Jones JR. Controlling particle size in the Stöber process and incorporation of calcium. J Colloid Interface Sci 2016; 469:213-223. [PMID: 26890387 DOI: 10.1016/j.jcis.2016.01.065] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 01/26/2016] [Accepted: 01/27/2016] [Indexed: 12/28/2022]
Abstract
The Stӧber process is commonly used for synthesising spherical silica particles. This article reports the first comprehensive study of how the process variables can be used to obtain monodispersed particles of specific size. The modal particle size could be selected within in the range 20-500 nm. There is great therapeutic potential for bioactive glass nanoparticles, as they can be internalised within cells and perform sustained delivery of active ions. Biodegradable bioactive glass nanoparticles are also used in nanocomposites. Modification of the Stӧber process so that the particles can contain cations such as calcium, whilst maintaining monodispersity, is desirable. Here, whilst calcium incorporation is achieved, with a homogenous distribution, careful characterisation shows that much of the calcium is not incorporated. A maximum of 10 mol% CaO can be achieved and previous reports are likely to have overestimated the amount of calcium incorporated.
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Affiliation(s)
| | | | - Slobodan Sirovica
- School of Engineering & Applied Science and Aston Research Centre for Healthy Ageing, University of Aston, UK
| | - Shu Chen
- Department of Materials, Imperial College London, UK
| | - Richard A Martin
- School of Engineering & Applied Science and Aston Research Centre for Healthy Ageing, University of Aston, UK
| | - Antonio Riveiro
- Department of Materials, Imperial College London, UK; Applied Physics Department, University of Vigo, E.I.I., Lagoas-Marcosende E-36310, Vigo, Spain
| | - John V Hanna
- Department of Physics, University of Warwick, UK
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18
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Zheng K, Taccardi N, Beltrán AM, Sui B, Zhou T, Marthala VRR, Hartmann M, Boccaccini AR. Timing of calcium nitrate addition affects morphology, dispersity and composition of bioactive glass nanoparticles. RSC Adv 2016. [DOI: 10.1039/c6ra05548f] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bioactive glass nanoparticles (BGN) are promising materials for a number of biomedical applications.
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Affiliation(s)
- Kai Zheng
- Institute of Biomaterials
- Department of Materials Science and Engineering
- University of Erlangen–Nuremberg
- 91058 Erlangen
- Germany
| | - Nicola Taccardi
- Institute of Chemical Reaction Engineering
- University of Erlangen–Nuremberg
- 91058 Erlangen
- Germany
| | - Ana Maria Beltrán
- Instituto de Ciencia de Materiales de Sevilla (CSIC-Universidad de Sevilla)
- 41092 Sevilla
- Spain
| | - Baiyan Sui
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University
- School of Medicine
| | - Tian Zhou
- Shanghai Biomaterials Research & Testing Center
- Shanghai Key Laboratory of Stomatology
- Ninth People's Hospital
- Shanghai Jiaotong University
- School of Medicine
| | - V. R. Reddy Marthala
- Erlangen Catalysis Resource Center
- University of Erlangen–Nuremberg
- 91058 Erlangen
- Germany
| | - Martin Hartmann
- Erlangen Catalysis Resource Center
- University of Erlangen–Nuremberg
- 91058 Erlangen
- Germany
| | - Aldo. R. Boccaccini
- Institute of Biomaterials
- Department of Materials Science and Engineering
- University of Erlangen–Nuremberg
- 91058 Erlangen
- Germany
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19
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Novel antibacterial bioactive glass nanocomposite functionalized with tetracycline hydrochloride. BIOMEDICAL GLASSES 2015. [DOI: 10.1515/bglass-2015-0012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractTo prevent the high frequency of wound infections,
anti-bacterial agents can be loaded onto composites.
In the present study, the antibiotic tetracycline hydrochloride
(TC)was incorporated, for the first time, in collagen
type I membranes coated with nano-sized SiO2-CaOP2O5
bioactive glass (n-BG) obtained by a sol-gel chemical
route.
Collagen membranes coated with n-BG were immersed
in simulated body fluid (SBF) containing 0.25, 0.75 or
1.25 mg mL−1 of TC for 48 h at 37∘C following a coprecipitation
method. The antibiotic was released in distilledwater
at 37∘C for up to 72 h. The antibacterial activity
of the composites was evaluated in vitro by the inhibition
zone test and plate count method. Two different Staphylococcus
aureus strains, S. aureus ATCC29213 and S. aureus
ATCC25923, were exposed to the biomaterials. The results
showed that the incorporation but not the release of TC
was dependent on the initial concentration of TC in SBF.
The biomaterials inhibited S. aureus growth, although the
efficacy was similar for all the concentrations. The results
allow us to conclude that the new composite could have
potential in the prevention of wound infections.
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20
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Jones JR. Reprint of: Review of bioactive glass: From Hench to hybrids. Acta Biomater 2015; 23 Suppl:S53-82. [PMID: 26235346 DOI: 10.1016/j.actbio.2015.07.019] [Citation(s) in RCA: 243] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 08/10/2012] [Accepted: 08/14/2012] [Indexed: 02/07/2023]
Abstract
Bioactive glasses are reported to be able to stimulate more bone regeneration than other bioactive ceramics but they lag behind other bioactive ceramics in terms of commercial success. Bioactive glass has not yet reached its potential but research activity is growing. This paper reviews the current state of the art, starting with current products and moving onto recent developments. Larry Hench's 45S5 Bioglass® was the first artificial material that was found to form a chemical bond with bone, launching the field of bioactive ceramics. In vivo studies have shown that bioactive glasses bond with bone more rapidly than other bioceramics, and in vitro studies indicate that their osteogenic properties are due to their dissolution products stimulating osteoprogenitor cells at the genetic level. However, calcium phosphates such as tricalcium phosphate and synthetic hydroxyapatite are more widely used in the clinic. Some of the reasons are commercial, but others are due to the scientific limitations of the original Bioglass 45S5. An example is that it is difficult to produce porous bioactive glass templates (scaffolds) for bone regeneration from Bioglass 45S5 because it crystallizes during sintering. Recently, this has been overcome by understanding how the glass composition can be tailored to prevent crystallization. The sintering problems can also be avoided by synthesizing sol-gel glass, where the silica network is assembled at room temperature. Process developments in foaming, solid freeform fabrication and nanofibre spinning have now allowed the production of porous bioactive glass scaffolds from both melt- and sol-gel-derived glasses. An ideal scaffold for bone regeneration would share load with bone. Bioceramics cannot do this when the bone defect is subjected to cyclic loads, as they are brittle. To overcome this, bioactive glass polymer hybrids are being synthesized that have the potential to be tough, with congruent degradation of the bioactive inorganic and the polymer components. Key to this is creating nanoscale interpenetrating networks, the organic and inorganic components of which have covalent coupling between them, which involves careful control of the chemistry of the sol-gel process. Bioactive nanoparticles can also now be synthesized and their fate tracked as they are internalized in cells. This paper reviews the main developments in the field of bioactive glass and its variants, covering the importance of control of hierarchical structure, synthesis, processing and cellular response in the quest for new regenerative synthetic bone grafts. The paper takes the reader from Hench's Bioglass 45S5 to new hybrid materials that have tailorable mechanical properties and degradation rates.
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Affiliation(s)
- Julian R Jones
- Department of Materials, Imperial College London, South Kensington Campus, London SW7 2AZ, UK.
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Correia CO, Leite ÁJ, Mano JF. Chitosan/bioactive glass nanoparticles scaffolds with shape memory properties. Carbohydr Polym 2015; 123:39-45. [DOI: 10.1016/j.carbpol.2014.12.076] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 10/27/2014] [Accepted: 12/30/2014] [Indexed: 11/25/2022]
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22
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Liu S, Gong W, Dong Y, Hu Q, Chen X, Gao X. The effect of submicron bioactive glass particles on in vitro osteogenesis. RSC Adv 2015. [DOI: 10.1039/c5ra03786g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mono-dispersed submicron bioactive glass could enhance the adhesion and osteogenesis of MG-63 cells.
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Affiliation(s)
- Shaoqing Liu
- Department of Cariology and Endodontology
- Peking University School and Hospital of Stomatology
- Beijing 100081
- People's Republic of China
| | - Weiyu Gong
- Department of Cariology and Endodontology
- Peking University School and Hospital of Stomatology
- Beijing 100081
- People's Republic of China
| | - Yanmei Dong
- Department of Cariology and Endodontology
- Peking University School and Hospital of Stomatology
- Beijing 100081
- People's Republic of China
| | - Qing Hu
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510640
- People's Republic of China
| | - Xiaofeng Chen
- National Engineering Research Center for Tissue Restoration and Reconstruction
- South China University of Technology
- Guangzhou 510640
- People's Republic of China
| | - Xuejun Gao
- Department of Cariology and Endodontology
- Peking University School and Hospital of Stomatology
- Beijing 100081
- People's Republic of China
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23
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Oliveira MB, Luz GM, Mano JF. A combinatorial study of nanocomposite hydrogels: on-chip mechanical/viscoelastic and pre-osteoblast interaction characterization. J Mater Chem B 2014; 2:5627-5638. [DOI: 10.1039/c4tb00437j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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24
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Lukowiak A, Lao J, Lacroix J, Nedelec JM. Bioactive glass nanoparticles obtained through sol-gel chemistry. Chem Commun (Camb) 2014; 49:6620-2. [PMID: 23772442 DOI: 10.1039/c3cc00003f] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different sol-gel strategies based on the Stöber method are proposed enabling preparation of nanoparticles of SiO2-CaO bioactive glass with different size, narrow size distribution and good dispersion capability. Eu(3+)-doped glass nanoparticles with luminescent properties can also be obtained.
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Affiliation(s)
- Anna Lukowiak
- Clermont Université, ENSCCF, ICCF, BP10448, 63000 Clermont-Ferrand, France.
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25
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Tsigkou O, Labbaf S, Stevens MM, Porter AE, Jones JR. Monodispersed bioactive glass submicron particles and their effect on bone marrow and adipose tissue-derived stem cells. Adv Healthc Mater 2014; 3:115-25. [PMID: 23832877 DOI: 10.1002/adhm.201300126] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Indexed: 02/06/2023]
Abstract
Spherical monodispersed bioactive particles are potential candidates for nanocomposite synthesis or as injectable particles that could be internalized by cells for the local sustained delivery of inorganic therapeutic ions (e.g., calcium or strontium). Particles are also likely to be released from porous bioactive glass and sol-gel hybrid scaffolds as they degrade; thus, it is vital to investigate their interaction with cells. Spherical monodispersed bioactive glass particles (mono-SMBG), with diameters of 215 ± 20 nm are synthesized using a modified Stöber process. Confocal and transmission electron microscopy demonstrate that mono-SMBGs are internalized by human bone marrow (MSCs) and adipose-derived stem cells (ADSCs) and located within cell vesicles and in the cytoplasm. Particle dissolution inside the cells is observed. Alamar Blue, MTT and Cyquant assays demonstrate that 50 μg mL(-1) of mono-SMBGs did not inhibit significantly MSC or ADSC metabolic activity. However, at higher concentrations (100 and 200 μg mL(-1)) small decrease in metabolic activity and total DNA is observed. Mono-SMBG did not induce ALPase activity, an early marker of osteogenic differentiation, without osteogenic supplements; however, in their presence osteogenic differentiation is achieved. Additionally, large numbers of particles are internalized by the cells but have little effect on cell behavior.
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Affiliation(s)
- Olga Tsigkou
- Department of Materials, Imperial College London, South Kensington Campus, SW7 2AZ, London, UK.
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26
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Hu Q, Li Y, Miao G, Zhao N, Chen X. Size control and biological properties of monodispersed mesoporous bioactive glass sub-micron spheres. RSC Adv 2014. [DOI: 10.1039/c4ra01276c] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Monodispersed mesoporous bioactive glass sub-micron spheres with a controllable size and good biocompatibility were fabricated by an improved sol–gel method.
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Affiliation(s)
- Qing Hu
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou 510006, China
| | - Yuli Li
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou 510006, China
| | - Guohou Miao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou 510006, China
| | - Naru Zhao
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou 510006, China
| | - Xiaofeng Chen
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510641, China
- National Engineering Research Center for Tissue Restoration and Reconstruction
- Guangzhou 510006, China
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27
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Investigation of emulsified, acid and acid-alkali catalyzed mesoporous bioactive glass microspheres for bone regeneration and drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4236-43. [DOI: 10.1016/j.msec.2013.06.022] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 06/14/2013] [Accepted: 06/18/2013] [Indexed: 11/24/2022]
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28
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Mehrali M, Shirazi FS, Mehrali M, Metselaar HSC, Kadri NAB, Osman NAA. Dental implants from functionally graded materials. J Biomed Mater Res A 2013; 101:3046-57. [PMID: 23754641 DOI: 10.1002/jbm.a.34588] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 01/04/2013] [Indexed: 11/05/2022]
Abstract
Functionally graded material (FGM) is a heterogeneous composite material including a number of constituents that exhibit a compositional gradient from one surface of the material to the other subsequently, resulting in a material with continuously varying properties in the thickness direction. FGMs are gaining attention for biomedical applications, especially for implants, owing to their reported superior composition. Dental implants can be functionally graded to create an optimized mechanical behavior and achieve the intended biocompatibility and osseointegration improvement. This review presents a comprehensive summary of biomaterials and manufacturing techniques researchers employ throughout the world. Generally, FGM and FGM porous biomaterials are more difficult to fabricate than uniform or homogenous biomaterials. Therefore, our discussion is intended to give the readers about successful and obstacles fabrication of FGM and porous FGM in dental implants that will bring state-of-the-art technology to the bedside and develop quality of life and present standards of care.
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Affiliation(s)
- Mehdi Mehrali
- Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, 50603, Malaysia
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Jones JR. Review of bioactive glass: from Hench to hybrids. Acta Biomater 2013; 9:4457-86. [PMID: 22922331 DOI: 10.1016/j.actbio.2012.08.023] [Citation(s) in RCA: 1003] [Impact Index Per Article: 91.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2012] [Revised: 08/10/2012] [Accepted: 08/14/2012] [Indexed: 12/18/2022]
Abstract
Bioactive glasses are reported to be able to stimulate more bone regeneration than other bioactive ceramics but they lag behind other bioactive ceramics in terms of commercial success. Bioactive glass has not yet reached its potential but research activity is growing. This paper reviews the current state of the art, starting with current products and moving onto recent developments. Larry Hench's 45S5 Bioglass® was the first artificial material that was found to form a chemical bond with bone, launching the field of bioactive ceramics. In vivo studies have shown that bioactive glasses bond with bone more rapidly than other bioceramics, and in vitro studies indicate that their osteogenic properties are due to their dissolution products stimulating osteoprogenitor cells at the genetic level. However, calcium phosphates such as tricalcium phosphate and synthetic hydroxyapatite are more widely used in the clinic. Some of the reasons are commercial, but others are due to the scientific limitations of the original Bioglass 45S5. An example is that it is difficult to produce porous bioactive glass templates (scaffolds) for bone regeneration from Bioglass 45S5 because it crystallizes during sintering. Recently, this has been overcome by understanding how the glass composition can be tailored to prevent crystallization. The sintering problems can also be avoided by synthesizing sol-gel glass, where the silica network is assembled at room temperature. Process developments in foaming, solid freeform fabrication and nanofibre spinning have now allowed the production of porous bioactive glass scaffolds from both melt- and sol-gel-derived glasses. An ideal scaffold for bone regeneration would share load with bone. Bioceramics cannot do this when the bone defect is subjected to cyclic loads, as they are brittle. To overcome this, bioactive glass polymer hybrids are being synthesized that have the potential to be tough, with congruent degradation of the bioactive inorganic and the polymer components. Key to this is creating nanoscale interpenetrating networks, the organic and inorganic components of which have covalent coupling between them, which involves careful control of the chemistry of the sol-gel process. Bioactive nanoparticles can also now be synthesized and their fate tracked as they are internalized in cells. This paper reviews the main developments in the field of bioactive glass and its variants, covering the importance of control of hierarchical structure, synthesis, processing and cellular response in the quest for new regenerative synthetic bone grafts. The paper takes the reader from Hench's Bioglass 45S5 to new hybrid materials that have tailorable mechanical properties and degradation rates.
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Affiliation(s)
- Julian R Jones
- Department of Materials, Imperial College London, South Kensington Campus, London, UK.
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30
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Mota J, Yu N, Caridade SG, Luz GM, Gomes ME, Reis RL, Jansen JA, Walboomers XF, Mano JF. Chitosan/bioactive glass nanoparticle composite membranes for periodontal regeneration. Acta Biomater 2012; 8:4173-80. [PMID: 22771458 DOI: 10.1016/j.actbio.2012.06.040] [Citation(s) in RCA: 135] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 06/27/2012] [Accepted: 06/29/2012] [Indexed: 11/19/2022]
Abstract
Barrier membranes are used in periodontal applications with the aim of supporting periodontal regeneration by physically blocking migration of epithelial cells. The present work proposes a combination of chitosan (CHT) with bioactive glass nanoparticles (BG-NPs) in order to produce a novel guided tissue and bone regeneration membrane, fabricated by solvent casting. The CHT/BG-NP nanocomposite membranes are characterized in terms of water uptake, in mechanical tests, under simulated physiological conditions and in in vitro bioactivity tests. The addition of BG-NPs to CHT membranes decreased the mechanical potential of these membranes, but on the other hand the bioactivity improved. The membranes containing the BG-NPs induced the precipitation of bone-like apatite in simulated body fluid (SBF). Biological tests were carried out using human periodontal ligament cells and human bone marrow stromal cells. CHT/BG-NP composite membranes promoted cell metabolic activity and mineralization. The results indicate that the CHT/BG-NP composite membrane could potentially be used as a temporary guided tissue regeneration membrane in periodontal regeneration, with the possibility to induce bone regeneration.
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Affiliation(s)
- Joana Mota
- 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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31
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Luz GM, Mano JF. A nanotectonics approach to produce hierarchically organized bioactive glass nanoparticles-based macrospheres. NANOSCALE 2012; 4:6293-6297. [PMID: 22992681 DOI: 10.1039/c2nr31895d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Bioactive particles have been widely used in a series of biomedical applications due to their ability to promote bone-bonding and elicit favorable biological responses in therapies associated with the replacement and regeneration of mineralized tissues. In this work hierarchical architectures are prepared by an innovative methodology using SiO(2)-CaO sol-gel based nanoparticles. Inspired by colloidal crystals, spherical aggregates were formed on biomimetic superhydrophobic surfaces using bioactive glass nanoparticles (BG-NPs) able to promote bone regeneration. A highly ordered organization, a common feature of mineralized structures in Nature, was achieved at both nano- and microlevels, being the crystallization degree of the structures controlled by the evaporation rates taking place at room temperature (RT) or at 4 °C. The crystallization degree of the structures influenced the Ca/P ratio of the apatitic film formed at their surface, after 7 days of immersion in SBF. This allows the regulation of bioactive properties and the ability to release potential additives that could be also incorporated in such particles with a high efficiency. Such a versatile method to produce bioactive particles with controlled size and internal structure could open new possibilities in designing new spherical devices for orthopaedic applications, including tissue engineering.
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Affiliation(s)
- Gisela M Luz
- 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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Luz GM, Boesel L, del Campo A, Mano JF. Micropatterning of bioactive glass nanoparticles on chitosan membranes for spatial controlled biomineralization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:6970-6977. [PMID: 22480212 DOI: 10.1021/la300667g] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bioactive glass nanoparticles (BG-NPs) capable of inducing apatite precipitation upon immersion in simulated body fluid (SBF) were patterned on free-standing chitosan membranes by microcontact printing using a poly(dimethylsiloxane) (PDMS) stamp inked in a BG-NPs pad. Formation of the patterns was characterized by scanning electron microscopy (SEM). Mineralization of the bioactive glass patterns was induced in vitro by soaking the samples in SBF over different time points up to 7 days. The confined apatite deposition in the patterned regions with diameters of 50 μm was confirmed by Fourier-transformed infrared spectroscopy (FTIR), energy-dispersive X-ray (EDX) analysis, and SEM. In vitro tests confirmed the preferential attachment and proliferation of L929 cells to the areas printed with BG-NPs of the membranes. This approach permits one to spatially control the properties of biomaterials at the microlevel and could be potentially used in guided tissue regeneration for skin, vascular, articular, and bone tissue engineering and in cellular cocultures or to develop substrates able to confine cells in regions with controlled geometry at the cell's length scale.
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Affiliation(s)
- Gisela M Luz
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Caldas das Taipas, Portugal
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Luz GM, Mano JF. Preparation and characterization of bioactive glass nanoparticles prepared by sol-gel for biomedical applications. NANOTECHNOLOGY 2011; 22:494014. [PMID: 22101770 DOI: 10.1088/0957-4484/22/49/494014] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Bioactive glass nanoparticles (BG-NPs), based on both ternary (SiO(2)-CaO-P(2)O(5)) and binary (SiO(2)-CaO) systems, were prepared via an optimized sol-gel method. The pH of preparation and the effect of heat treatment temperature were evaluated, as well as the effect of suppressing P in the bioactivity ability of the materials. The morphology and composition of the BG-NPs were studied using FTIR, XRD and SEM. The bioactive character of these materials was accessed in vitro by analyzing the ability for apatite formation onto the surface after being immersed in simulated body fluid (SBF). XRD, EDX and SEM were used to confirm the bioactivity of the materials. The BG-NP effect on cell metabolic activity was assessed by seeding L929 cells with their leachables, proving the non-cytotoxicity of the materials. Finally the most bioactive BG-NPs developed (ternary system prepared at pH 11.5 and treated at 700 °C) were successfully combined with chitosan in the production of biomimetic nanocomposite osteoconductive membranes that could have the potential to be used in guided tissue regeneration.
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Affiliation(s)
- Gisela M Luz
- 3B's Research Group-Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, P-4806-909 Taipas, Guimarães, Portugal.
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Akbar N, Mohamed T, Whitehead D, Azzawi M. Biocompatibility of amorphous silica nanoparticles: Size and charge effect on vascular function, in vitro. Biotechnol Appl Biochem 2011; 58:353-62. [PMID: 21995538 DOI: 10.1002/bab.46] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Accepted: 08/01/2011] [Indexed: 12/21/2022]
Abstract
Synthetic amorphous silica is gaining popularity as the material of choice in the fabrication of nanoparticles for use in imaging diagnostics, medical therapeutics, and tissue engineering because of its biocompatible nature. However, recent evidence suggests that silica nanoparticles (SiNPs) show a concentration- and size-dependent toxic effect that is cell specific. We investigated the direct influence of SiNP uptake on the vasodilator responses of rat aortic vessels, in vitro, using fabricated SiNPs of defined size (97 ± 7.60 and 197 ± 7.50 nm) and charge (positive and nonmodified). Dilator responses to cumulative doses of endothelial-dependent [acetylcholine (Ach); 0.01 µM-1.0 mM] and endothelial-independent (sodium nitroprusside; 0.01-10 µM) agonists were determined before and 30 Min after incubation in SiNPs (at 1.1 × 10(11) nanoparticles/mL). Acute exposure to SiNPs led to their rapid uptake by the lining endothelial cells (as verified by transmission electron microscopy). SiNP uptake had no significant influence on dilator responses, although a greater degree of attenuation was evident after uptake of the 100 nm and positively charged SiNPs (significant at the highest 1.0 mM Ach concentration between positive and nonmodified 200 nm SiNPs; P < 0.05). In summary, our findings suggest that SiNP surface interactions, rather than mass, affect vasodilator function of aortic vessels.
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Affiliation(s)
- Naveed Akbar
- The School of Healthcare Science, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, UK
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Lei B, Chen X, Han X, Li Z. Unique physical–chemical, apatite-forming properties and human marrow mesenchymal stem cells (HMSCs) response of sol–gel bioactive glass microspheres. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11547b] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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