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Characterization of YQ26-FSiNPs. (A) Size distribution and transmission electron micrographs (inset) of FSiNPs, Lib-FSiNPs, and YQ26-FSiNPs. Scale bar = 200 nm. (B) Zeta potential of aptamer YQ26, FSiNPs, Lib-FSiNPs and YQ26-FSiNPs. (C) UV-Vis absorbance (blue line) and fluorescence emission spectra (red line) of FSiNPs, Lib-FSiNPs, and YQ26-FSiNPs. (D) FT-IR spectra of FSiNPs and YQ26-FSiNPs.
