The albumin nanoparticle is one molecule of albumin. So you need to determine the refractive index of the solution of albumin molecules of a certain concentration. There is a specific increase in the index of refraction of a 1% solution of albumins compared to a refractive index of water of 1.33:
Serum albumin bull 0.001901
Human serum albumin 0,001887
Serum albumin eggs 0.001876
There is a linear relationship between the concentration and the refractive index. Name the concentration of albumin and determine its refractive index.
There is crystalline albumin. In a solution (or dispersed system), it is in a hydrated state.