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- W4376648885 abstract "Herein, we reported a one-pot synthesis of CsPbBr3 quantum dots (QDs) passivated with diammonium sulfide (NH4)2S additive using the probe-sonication technique. (NH4)2S-treated CsPbBr3 (NS-CsPbBr3) QDs exhibited superior optical properties compared to untreated QDs. The aqueous stability of NS-CsPbBr3 QDs was improved by physical loading into porous manganese (Mn)-enriched polydopamine nanoparticles (mPDA NPs) via physical adsorption strategy, followed by functionalization with folic acid (FA), resulting in multifunctional nanospheres (denoted as NCPB@mPDA/FA NSs). The Mn2+ and S2- ions in the NCPB@mPDA/FA NSs generated cytotoxic •OH radicals for chemodynamic treatment (CDT) and H2S gas for gas therapy (GT) under acidic conditions, respectively. Furthermore, the intracellular antioxidant glutathione was significantly blocked using NCPB@mPDA/FA for enhanced CDT efficiency. Upon 808 nm laser irradiation, the green-emitting NCPB@mPDA/FA NSs demonstrated not only outstanding photothermal therapy (Ƞ=41.5%) due to considerable absorption in the near-infrared range but also stimulated the release of Mn2+ and S2- ions for photothermal-triggered CDT and GT of cancer. The cancer cells effectively internalized NCPB@mPDA/FA through CD44 folate receptors, leading to a bright cellular image. Additionally, when combined with laser and H2O2, NCPB@mPDA/FA exhibited significant effectiveness against HeLa and 4T1 cells. Upon intravenous administration, NCPB@mPDA/FA exhibited notable tumor accumulation, resulting in enhanced tumor suppression in vivo, attributed to the improved hyperthermia-induced CDT and GT. The in vivo tumor inhibition potential of perovskite QD-based materials was demonstrated for the first time, indicating their therapeutic capabilities." @default.
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- W4376648885 date "2023-07-01" @default.
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- W4376648885 title "Defect-passivated metal halide perovskite quantum dots stabilized into biodegradable porous polydopamine nanoparticles for photothermal/chemodynamic/gas therapy of cancer" @default.
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- W4376648885 doi "https://doi.org/10.1016/j.cej.2023.143560" @default.
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