Figure 2
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Characterization of BPNS and BPNS-BSA-FITC. (a) Fluorescence spectra of BPNS and BPNS-BSA-FITC (EX = 490 nm). (b) N1s spectra of BPNS-BSA-FITC samples characterized by XPS. (c) P2p spectra of BPNS-BSA-FITC samples characterized by XPS. (d) Raman spectra of BPNS and BPNS-BSA-FITC. (e) Fluorescence intensity of SBPNS-BSA-FITC and LBPNS-BSA-FITC (Ex = 490 nm, Em = 520 nm, n = 3). (f) Zeta potential of BPNS and BPNS-BSA-FITC in different environments (n = 3).
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