Nano-sized spherical poly(acrylic acid) brushes (SPB) with polystyrene core were synthesized by photo-emulstion polymerization. Bovine serum albumins (BSA) were immobilized into SPB due to electrostatic interactions in buffer solution, which can be determined by UV spectrum and observed by small angle X-ray scattering (SAXS). Upon increasing the ionic strength or pH value, the adsorbed amount of BSA in SPB reduced accompanying with the shrink of SPB.

Immobilization of bovine serum albumin in spherical 
poly(acrylic acid) brushes as observed by small angle X-ray scattering

243rd National Meeting (2012)

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Immobilization of bovine serum albumin in spherical poly(acrylic acid) brushes as observed by small angle X-ray scattering