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. 2016 Sep 13;11:4609–4624. doi: 10.2147/IJN.S107345

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© 2016 Li et al. This work is published and licensed by Dove Medical Press Limited

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(A) Images of phase transfer reaction for the synthesis of α-QDs triggered by ultrasound treatment; the reaction phenomenon for the other QD nanocarriers was similar. (B) TEM images of (a) α-QDs, (b) β-QDs, (c) γ-QDs, (d) α/β-QDs, (e) α/γ-QDs, and (f) β/γ-QDs. (C) The UV–visible spectra of QD nanocarriers. (D) Fluorescence emission spectra of QD nanocarriers; Ex: 488 nm. (E) FT-IR spectra of QD nanocarriers. (F) Cytotoxicity of QD nanocarriers in A549 cells after 72 hours, as determined by MTT.

Abbreviations: Arg, arginine; Ex, excitation; FT-IR, Fourier transform infrared; Abs, absorbance; QD, quantum dot; TEM, transmission electron microscopy; TOPO, trioctylphosphine oxide; UV, ultraviolet.