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. 2015 Apr 8;137(16):5272–5275. doi: 10.1021/jacs.5b01092

Figure 2.

Figure 2

(a) Schematics of the hetero-assembly of DNA-AuNPs/UCNP superstructures with increased NPs ratio of DNA-AuNPs to Lipo-UCNP. TEM images of the DNA-AuNPs/UCNP assemblies produced from the NPs molar ratio of DNA-AuNPs to Lipo-UCNPs of (b–d) 10:1, (e–g) 60:1, and (h–j) 200:1. (k) Photographs and (l) UV–vis absorption spectra of the DNA-AuNPs/UCNP superstructures assembled from different NPs ratio of DNA-AuNPs to Lipo-UCNP. Scale bar = 50 nm.