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      International Journal of Nanomedicine (submit here)

      This international, peer-reviewed Open Access journal by Dove Medical Press focuses on the application of nanotechnology in diagnostics, therapeutics, and drug delivery systems throughout the biomedical field. Sign up for email alerts here.

      105,621 Monthly downloads/views I 7.033 Impact Factor I 10.9 CiteScore I 1.22 Source Normalized Impact per Paper (SNIP) I 1.032 Scimago Journal & Country Rank (SJR)

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      Multifunctional materials for bone cancer treatment

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          Abstract

          The purpose of this review is to present the most recent findings in bone tissue engineering. Special attention is given to multifunctional materials based on collagen and collagen–hydroxyapatite composites used for skin and bone cancer treatments. The multi-functionality of these materials was obtained by adding to the base regenerative grafts proper components, such as ferrites (magnetite being the most important representative), cytostatics (cisplatin, carboplatin, vincristine, methotrexate, paclitaxel, doxorubicin), silver nanoparticles, antibiotics (anthracyclines, geldanamycin), and/or analgesics (ibuprofen, fentanyl). The suitability of complex systems for the intended applications was systematically analyzed. The developmental possibilities of multifunctional materials with regenerative and curative roles (antitumoral as well as pain management) in the field of skin and bone cancer treatment are discussed. It is worth mentioning that better materials are likely to be developed by combining conventional and unconventional experimental strategies.

          Most cited references185

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          Polymers for drug delivery systems.

          William B Liechty, David R Kryscio, Brandon V Slaughter … (2010)
          Polymers have played an integral role in the advancement of drug delivery technology by providing controlled release of therapeutic agents in constant doses over long periods, cyclic dosage, and tunable release of both hydrophilic and hydrophobic drugs. From early beginnings using off-the-shelf materials, the field has grown tremendously, driven in part by the innovations of chemical engineers. Modern advances in drug delivery are now predicated upon the rational design of polymers tailored for specific cargo and engineered to exert distinct biological functions. In this review, we highlight the fundamental drug delivery systems and their mathematical foundations and discuss the physiological barriers to drug delivery. We review the origins and applications of stimuli-responsive polymer systems and polymer therapeutics such as polymer-protein and polymer-drug conjugates. The latest developments in polymers capable of molecular recognition or directing intracellular delivery are surveyed to illustrate areas of research advancing the frontiers of drug delivery.
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            Bioceramics of calcium orthophosphates.

            Sergey Dorozhkin (2010)
            A strong interest in use of ceramics for biomedical applications appeared in the late 1960's. Used initially as alternatives to metals in order to increase a biocompatibility of implants, bioceramics have become a diverse class of biomaterials, presently including three basic types: relatively bioinert ceramics, bioactive (or surface reactive) and bioresorbable ones. Furthermore, any type of bioceramics could be porous to provide tissue ingrowth. This review is devoted to bioceramics prepared from calcium orthophosphates, which belong to the categories of bioresorbable and bioactive compounds. During the past 30-40 years, there have been a number of major advances in this field. Namely, after the initial work on development of bioceramics that was tolerated in the physiological environment, emphasis was shifted towards the use of bioceramics that interacted with bones by forming a direct chemical bond. By the structural and compositional control, it became possible to choose whether the bioceramics of calcium orthophosphates was biologically stable once incorporated within the skeletal structure or whether it was resorbed over time. At the turn of the millennium, a new concept of calcium orthophosphate bioceramics, which is able to regenerate bone tissues, has been developed. Current biomedical applications of calcium orthophosphate bioceramics include replacements for hips, knees, teeth, tendons and ligaments, as well as repair for periodontal disease, maxillofacial reconstruction, augmentation and stabilization of the jawbone, spinal fusion and bone fillers after tumor surgery. Potential future applications of calcium orthophosphate bioceramics will include drug-delivery systems, as well as they will become effective carriers of growth factors, bioactive peptides and/or various types of cells for tissue engineering purposes. (c) 2009 Elsevier Ltd. All rights reserved.
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              Biocompatibility and osteogenesis of biomimetic nano-hydroxyapatite/polyamide composite scaffolds for bone tissue engineering.

              S. Ma, Yi Zuo, Huanan Wang … (2007)
              In this study, we prepared nano-hydroxyapatite/polyamide (n-HA/PA) composite scaffolds utilizing thermally induced phase inversion processing technique. The macrostructure and morphology as well as mechanical strength of the scaffolds were characterized. Mesenchymal stem cells (MSCs) derived from bone marrow of neonatal rabbits were cultured, expanded and seeded on n-HA/PA scaffolds. The MSC/scaffold constructs were cultured for up to 7 days and the adhesion, proliferation and differentiation of MSCs into osteoblastic phenotype were determined using MTT assay, alkaline phosphatase (ALP) activity and collagen type I (COL I) immunohistochemical staining and scanning electronic microscopy (SEM). The results confirm that n-HA/PA scaffolds are biocompatible and have no negative effects on the MSCs in vitro. To investigate the in vivo biocompatibility and osteogenesis of the composite scaffolds, both pure n-HA/PA scaffolds and MSC/scaffold constructs were implanted in rabbit mandibles and studied histologically and microradiographically. The results show that n-HA/PA composite scaffolds exhibit good biocompatibility and extensive osteoconductivity with host bone. Moreover, the introduction of MSCs to the scaffolds dramatically enhanced the efficiency of new bone formation, especially at the initial stage after implantation. In long term (more than 12 weeks implantation), however, the pure scaffolds show as good biocompatibility and osteogenesis as the hybrid ones. All these results indicate that the scaffolds fulfill the basic requirements of bone tissue engineering scaffold, and have the potential to be applied in orthopedic, reconstructive and maxillofacial surgery.
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                Author and article information

                Journal
                Journal ID (nlm-ta): Int J Nanomedicine
                Journal ID (iso-abbrev): Int J Nanomedicine
                Title: International Journal of Nanomedicine
                Publisher: Dove Medical Press
                ISSN (Print): 1176-9114
                ISSN (Electronic): 1178-2013
                Publication date Collection: 2014
                Publication date (Electronic): 28 May 2014
                Volume: 9
                Pages: 2713-2725
                Affiliations
                [1 ]Department of Materials and Ceramics Engineering, Centre for Research in Ceramics and Composite Materials, University of Aveiro, Aveiro, Portugal
                [2 ]Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest, Bucharest, Romania
                [3 ]National Research and Development Institute for Textiles and Leather, Bucharest, Romania
                Author notes
                Correspondence: Anton Ficai, Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest, 1–7 Polizu Street, Bucharest 011061, Romania, Email anton.ficai@ 123456upb.ro
                Article
                Publisher ID: ijn-9-2713
                DOI: 10.2147/IJN.S55943
                PMC ID: 4044993
                PubMed ID: 24920907
                SO-VID: 0655e0e9-bafc-494f-9685-dda873f818e8
                Copyright © © 2014 Marques et al. This work is published by Dove Medical Press Limited, and licensed under Creative Commons Attribution – Non Commercial (unported, v3.0) License
                License:

                The full terms of the License are available at http://creativecommons.org/licenses/by-nc/3.0/. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed.

                History
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                Subject: Review

                ScienceOpen disciplines: Molecular medicine
                Keywords: bone graft,cancer,collagen,magnetite,cytostatics,silver
                Data availability:
                ScienceOpen disciplines: Molecular medicine
                Keywords: bone graft, cancer, collagen, magnetite, cytostatics, silver

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