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. 2020 Oct 30;5(44):28483–28492. doi: 10.1021/acsomega.0c02644

Figure 1.

Figure 1

(A) UV–vis absorption spectra of PEG-AuNPs (green cyan line), LENA ON PEG-AuNPs (red line), and LENA IN PEG-AuNPs (blue line). (B) TEM images (scale bar: 20 nm) of PEG-AuNPs (panel 1), LENA ON PEG-AuNPs (panel 2) and LENA IN PEG-AuNPs (panel 3). (C) Raman spectra of LENA ON PEG-AuNPs (red line) and LENA IN PEG-AuNPs (black line) compared to free PEG-AuNPs (green cyan line) and LENA free (blue line) as controls. Experimental conditions: λexc = 785 nm; laser power, 20 mW; accumulation time, 180 s.