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. 2016 Jun 24;113(28):7750–7755. doi: 10.1073/pnas.1605841113

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Fig. 1. — NIR NP platform. (A) Schematic illustration of the NIR NPs for siRNA delivery. (B) Excitation and emission of NIR NPs. (C) The TEM image of the NIR NPs. Inset is the digital picture of the NIR NPs in PBS. (D) Confocal imaging of HeLa cells incubated with the NIR NPs loaded with DY547-labeled siRNA. (E) ζ-Potentials of three different NIR NPs loaded with luciferase siRNA (NP#1, NP#2, and NP#3). Silencing efficiency and cytotoxicity of (F) NP#1, (G) NP#2, and (H) NP#3 loaded with luciferase siRNA.