2021
DOI: 10.1021/acsabm.1c00410
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Near-Infrared-Light-Responsive Copper Oxide Nanoparticles as Efficient Theranostic Nanoagents for Photothermal Tumor Ablation

Abstract: A theranostic nanoagent exhibits great promise to improve diagnostic accuracy and therapy efficacy. Herein, a kind of theranostic nanoagent based on poly(vinylpyrrolidone) (PVP)protected ultrasmall Cu 1.2 O nanoparticles (Cu 1.2 O NPs) is developed by a facile liquid reduction method. Attributed to high near-infrared absorbance and good biocompatibility, Cu 1.2 O NPs have shown significant potential for photothermal therapy. Moreover, Cu 1.2 O NPs with a satisfactory T 1 relaxivity coefficient (r 1 ) can be we… Show more

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Cited by 15 publications
(11 citation statements)
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“…Furthermore, the presence of satellite peaks denotes electronic shake-up, which empirically confirms the existence of CuO in the biphasic system. , In corroboration with the O 1s peak fitting, the Cu 2p signal also experienced a promotion of Cu 2+ intensity as a result of Ni doping. This goes to suggest that the photothermal activity was undertaken predominantly by Cu 2+ from CuO, which is an established photothermal material. Likewise, Ni doping was further confirmed from Ni 2p signal, which cataloged two peaks Ni 2p 3/2 (855.4 eV) and Ni 2p 1/2 (871.1 eV), indicating Ni 2+ (cyan region), as well as two peaks at the binding energy of 861.5 and 880.9 eV, representing Ni 3+ (orange region) (Figure S4d (Supporting Information)).…”
Section: Resultsmentioning
confidence: 88%
“…Furthermore, the presence of satellite peaks denotes electronic shake-up, which empirically confirms the existence of CuO in the biphasic system. , In corroboration with the O 1s peak fitting, the Cu 2p signal also experienced a promotion of Cu 2+ intensity as a result of Ni doping. This goes to suggest that the photothermal activity was undertaken predominantly by Cu 2+ from CuO, which is an established photothermal material. Likewise, Ni doping was further confirmed from Ni 2p signal, which cataloged two peaks Ni 2p 3/2 (855.4 eV) and Ni 2p 1/2 (871.1 eV), indicating Ni 2+ (cyan region), as well as two peaks at the binding energy of 861.5 and 880.9 eV, representing Ni 3+ (orange region) (Figure S4d (Supporting Information)).…”
Section: Resultsmentioning
confidence: 88%
“…Cu­(II)/LRu/PDA NPs can be used as MR and PAT imaging contrast agents. In this scenario, the doped Cu­(II) possesses an unpaired 3d electron, generating the function as a T 1 -weighted contrast agent for MRI. , Under the magnetic field, the T 1 of the surrounding protons will be shortened, which results in a brighter targeting area. On the basis of nuclear magnetic resonance (NMR) spectrometry, the longitudinal relaxation rate ( r 1 ) of Cu­(II)/LRu/PDA NPs is calculated as 3.61 mM –1 s –1 (Figure S7a).…”
Section: Resultsmentioning
confidence: 99%
“…Under 808nm laser irradiation, Cu-BTC@PDA NWs demonstrated high PTT conversion capability and better thermal stability during three consecutive cycles. As a result of their paramagnetic characteristics (Cu 2+ , 3d orbitals: 3d 9 ), NWs act as a T 1 MRI contrast agent [ 50 ].…”
Section: Discussionmentioning
confidence: 99%