Figure 1.

Binding isotherm of NBD-cholesterol to HDL-Au NPs. NBD-cholesterol was titrated into a 5 nM solution of HDL-Au NPs. The fluorescence versus NBD-cholesterol concentration was used to calculate the Kd of HDL-Au NPs.

Binding isotherm of NBD-cholesterol to HDL-Au NPs. NBD-cholesterol was titrated into a 5 nM solution of HDL-Au NPs. The fluorescence versus NBD-cholesterol concentration was used to calculate the Kd of HDL-Au NPs.