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- W4285115340 abstract "Given the distinct pathological features of neoplasm tissues, multifunctional responsive nanocarriers have been recently considered as promising candidates to optimize the chemotherapy regime. As a result, we propose a graphene oxide-based pH-responsive drug delivery system via covalent assembly of hairpin-like cell penetrating peptides with acid sensitive and charge reversal properties to realize superior tumor specificity and lower toxicity. Graphene oxide here can serve as high doxorubicin-loading nanosheets and facilitate swift drug release in response to laser irradiation, which provides an efficient platform for the synergy of photo-chemotherapy. Structurally, polyglycol conjugation on the graphene oxide surface fulfils the function of nanocomposite stabilization. After administration, the elaborately acid sensitive cell penetrating peptides maintain the hairpin structure under physiological conditions, while after entering the tumor acidic microenvironment, they undergo charge reversal and structural conversion to promote the cellular uptake of nanoparticles. The evaluation of nanocomposites in vitro revealed their negligible systematic toxicity and remarkable antitumor effects. In vivo experiments also confirmed the impressive stability and tumor-specific targeting for alleviating breast cancer. In conclusion, hairpin peptide modified graphene oxide nanoparticles show multiple merits including high drug carrying capacity, selective tumor penetration, responsive drug release and effective combination oncotherapy." @default.
- W4285115340 created "2022-07-14" @default.
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- W4285115340 date "2022-01-01" @default.
- W4285115340 modified "2023-10-12" @default.
- W4285115340 title "Charge reversal hairpin peptide modified synergy therapeutic nanoplatforms for tumor specific drug shuttling" @default.
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- W4285115340 doi "https://doi.org/10.1039/d2bm00817c" @default.
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