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. 2016 Mar 9;6:22764. doi: 10.1038/srep22764

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Copyright © 2016, Macmillan Publishers Limited

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(a) Schematic depicts the possible mechanism for the shape transformation from DEAuNPs to DSAuNRs. (b,c) HRTEM images of DEAuNPs and DSAuNRs, respectively. The inset photographs show the bulk solution of DEAuNPs and DSAuNRs, and the inset HRTEM in (b) represents a single particle of DSAuNRs. (d) The UV-Vis spectra of DEAuNPs and DSAuNRs. (e,f) The summarized length (long axis) and width (short axis) distribution of DEAuNPs and DSAuNRs, respectively. (g) The simulated extinction efficiency factor (Q_ext) of AuNRs with varied lengths by using DDA method.