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Characterization of AuNR@PEG/PLA vesicles. (a,b) SEM (a) and TEM (b) images of the plasmonic vesicles assembled from amphiphilic gold nanorods coated with PEG and polylactide (AuNR@PEG/PLA). (c) UV-visible spectra of the amphiphilic AuNR@PEG/PLA in chloroform (red line) and the plasmonic AuNR@PEG/PLA vesicles in water (blue line). (d) Hydrodynamic diameter distribution (Dn) of the plasmonic AuNR@PEG/PLA vesicles. c adapted with permission from ref. 35, American Chemical Society.
