Ultrasensitive Detection of Lysozyme upon Conformational Change of DNA Duplex

Figure 3

Effect of ionic strength on the plasmon characteristics of the AuNPs in the presence of dsDNA. (a) The color change of colloidal solution of AuNPs at various concentration of salt (0-0.12 M); (b) UV-Vis spectra of respective samples.

(a)

(b)