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Silica-based nanoarchitecture for an optimal combination of photothermal and chemodynamic therapy functions of Cu2–xS cores with red emitting carbon dots

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Frontiers of Chemical Science and Engineering 2023年第12期17卷 2144-2155页

作者： Alexey Stepanov Svetlana Fedorenko Kirill Kholin Irek Nizameev Alexey Dovzhenko Rustem Zairov Tatiana Gerasimova Alexandra Voloshina Anna Lyubina Guzel Sibgatullina dmitry samigullin Asiya Mustafina Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of RASKazan 420088Russia Department of Physics Kazan National Research Technological UniversityKazan 420015Russia Department of Nanotechnology in Electronics Kazan National Research Technical University named after A.N.Tupolev-KAIKazan 420111Russia Kazan(Volga region)Federal University Kazan 420008Russia Kazan Institute of Biochemistry and Biophysics FRC Kazan Scientific Center of RASKazan 420111Russia

This study introduces multifunctional silica nanoparticles that exhibit both high photothermal and chemodynamic therapeutic activities,in addition to *** activity of the silica nanoparticles is derived from their plasmonic properties,which are a result of infusing the silica nanoparticles with multiple Cu2-xS *** infusion process is facilitated by a recoating of the silica nanoparticles with a cationic *** key factors that enable the internal incorporation of the Cu2-xS cores and the external deposition of red-emitting carbon dots are *** Cu2-xS cores within the silica nanoparticles exhibit both self-boosting generation of reactive oxygen species and high photothermal conversion efficacy,which are essential for photothermal and chemodynamic *** silica nanoparticles’small size(no more than 70 nm)and high colloidal stability are prerequisites for their cell *** internalization of the red-emitting silica nanoparticles within cells is visualized using fluorescence microscopy *** chemodynamic activity of the silica nanoparticles is associated with their dark cytotoxicity,and the mechanisms of cell death are evaluated using an apoptotic *** photothermal activity of the silica nanoparticles is demonstrated by significant cell death under near-infrared(1064 nm)irradiation.

关键词： copper sulfide nanoparticles chemodynamic therapy photothermal therapy carbon dots silica nanoparticles

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