Fig. 3

AF4-UV/Vis fractograms (525 nm) of fresh AuCIT (A) and AuPEG (D). (B) AF4-UV/Vis fractograms of standard BSA (20 µg) (280 nm, green) and AuCIT-BSA (525 nm, red) in phosphate buffer. (C) AF4-UV/Vis fractograms of (525 nm) fresh AuCIT-BSA with different injection volumes in phosphate buffer (insert: linearity as injection volume vs. intensity). (E) Overlay of AF4-UV/Vis fractograms of standard BSA (20 µg) (280 nm, green) and AuPEG-BSA (525 nm, red) in phosphate buffer. (F) AF4-UV/Vis fractograms of (525 nm) fresh AuPEG-BSA with different injection volumes in phosphate buffer (insert: linearity as injection volume vs. intensity).