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- W2901401037 abstract "In the last decade, the biosynthesis of metal nanoparticles using organisms have received more and more considerations. However, the complex composition of organisms adds up to a great barrier for the characterization of biomolecules involved in the synthesis process and their biological mechanisms.In this research, we biosynthesized a kind of flower-shaped Au nanoclusters (Au NCs) using one definite component-epigallocatechin gallate (EGCG), which was the main biomolecules of green tea polyphenols. Possessing good stability for 6 weeks and a size of 50 nm, the Au NCs might be a successful candidate for drug delivery. Hence, both methotrexate (MTX) and doxorubicin (DOX) were conjugated to the Au NCs through a bridge of cysteine (Cys). The introduction of MTX provided good targeting property for the Au NCs, and the conjugation of DOX provided good synergistic effect. Then, a novel kind of dual-drug loaded, tumor-targeted and highly efficient drug delivery system (Au-Cys-MTX/DOX NCs) for combination therapy was successfully prepared. The TEM of HeLa cells incubated with Au-Cys-MTX/DOX NCs indicated that the Au-Cys-MTX/DOX NCs could indeed enter and kill cancer cells. The Au-Cys-MTX/DOX NCs also possessed good targeting effect to the FA-receptors-overpressed cancer cells both in vitro and in vivo. Importantly, the Au-Cys-MTX/DOX NCs resulted in an excellent anticancer activity in vivo with negligible side effects.These results suggest that the biosynthesized Au-Cys-MTX/DOX NCs could be a potential carrier with highly efficient anticancer properties for tumor-targeted drug delivery." @default.
- W2901401037 created "2018-11-29" @default.
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- W2901401037 date "2018-11-13" @default.
- W2901401037 modified "2023-10-12" @default.
- W2901401037 title "Biosynthesis of flower-shaped Au nanoclusters with EGCG and their application for drug delivery" @default.
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- W2901401037 doi "https://doi.org/10.1186/s12951-018-0417-3" @default.
- W2901401037 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6233264" @default.
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