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    Structural and biological properties of thermosensitive chitosan-graphene hybrid hydrogels for sustained drug delivery applications

    Date
    2017-09
    Author
    Saeednia, Leyla
    Yao, Li
    Berndt, Marcus
    Cluff, Kim
    Asmatulu, Ramazan
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    Citation
    Saeednia L, Yao L, Berndt M, Cluff K, Asmatulu R. 2017. Structural and biological properties of thermosensitive chitosan–graphene hybrid hydrogels for sustained drug delivery applications. J Biomed Mater Res Part A 2017:105A:2381–2390
    Abstract
    Chitosan has the ability to make injectable thermosensitive hydrogels which has been highly investigated for drug delivery applications. The addition of nanoparticles is one way to increase the mechanical strength of thermosensitive chitosan hydrogel and subsequently and control the burst release of drug. Graphene nanoparticles have shown unique mechanical, optical and electrical properties which can be exploited for biomedical applications, especially in drug delivery. This study, have focused on the mechanical properties of a thermosensitive and injectable hybrid chitosan hydrogel incorporated with graphene nanoparticles. Scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectroscopy, Raman spectroscopy, and X-ray diffraction (XRD) have been used for morphological and chemical characterization of graphene infused chitosan hydrogels. The cell viability and cytotoxicity of graphene-contained hydrogels were analyzed using the alamarBlue (R) technique. In-vitro methotrexate (MTX) release was investigated from MTX-loaded hybrid hydrogels as well. As a last step, to evaluate their efficiency as a cancer treatment delivery system, an in vitro anti-tumor test was also carried out using MCF-7 breast cancer cell lines. Results confirmed that a thermosensitive chitosan-graphene hybrid hydrogel can be used as a potential breast cancer therapy system for controlled delivery of methotrexate.
    Description
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    URI
    http://dx.doi.org/10.1002/jbm.a.36096
    http://hdl.handle.net/10057/13979
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