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    Gold nanoparticle-biomolecule conjugates : synthesis, properties, cellular interactions and cytotoxicity studies

    Mekapothula, Swapna
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    Date
    2008
    Format
    Thesis
    Metadata
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    Abstract
    This research focuses on conjugation of two major biomolecules i.e., Bombesin and Annexin V, to AuNps and studying their target specificity. The target specificity of AuNps coated with Bombesin, a GRP receptor specific protein was tested using two cancer cell lines (MCF-7and PC-3) that over-express GRP receptors. Both cell types exhibit significant uptake of Bombesin gold nanoparticles, internalizing them through a highly specific receptor mediated endocytosis pathway. Binding of AuNps coated with a phospholipid-binding protein Annexin V with high affinity towards apoptotic cells was tested in Jurkat-T- lymphocytes. Annexin VA[Mu]Nps showed excellent affinity towards the apoptotic Jurkat-T lymphocytes binding to the cells in a manner similar to the biomolecule annexin V. We further used environmentally benign so called green chemicals i.e., present in tea, soybean, and cinnamon and their synergistic reduction potentials to reduce the gold salts into AuNps. Such nanoparticles also showed excellent affinity toward epidermal growth factor receptors (EGFR) on prostate and breast cancer cells and proved to be noncytotoxic at as high as 150[Mu]M. These studies showed that gold nanoparticles can be coated not only to exert specific molecular interactions in specific cell types but also to be devoid of adverse effects.
    URI
    https://doi.org/10.32469/10355/5641
    https://hdl.handle.net/10355/5641
    Degree
    M.S.
    Thesis Department
    Veterinary biomedical sciences (MU)
    Rights
    OpenAccess.
    This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
    Collections
    • Biomedical Sciences electronic theses and dissertations (MU)
    • 2008 MU theses - Freely available online

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