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Figure 2: Characterization of synthesized AuCLs. (a) TEM image of AuCLs, in low resolution (left) and high resolution (right). Oligomeric states of AuCLs were indicated by red circles. High-resolution TEM images provide direct evidence for the presence of lipid layers enveloping nanoparticle clusters. (b) DLS data for AuCLs as a function of time. Hydrodynamic radius of AuCLs increases until the average size reaches 100 nm and is sustained for at least 24 hours. (c) UV-vis spectra of AuNPs (black) and AuCLs (red).