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Effects of surface functional groups on the formation of nanoparticle-protein corona.


ABSTRACT: Herein, we examined the dependence of protein adsorption on the nanoparticle surface in the presence of functional groups. Our UV-visible spectrophotometry, transmission electron microscopy, infrared spectroscopy, and dynamic light scattering measurements evidently suggested that the functional groups play an important role in the formation of nanoparticle-protein corona. We found that uncoated and surfactant-free silver nanoparticles derived from a laser ablation process promoted a maximum protein (bovine serum albumin) coating due to increased changes in entropy. On the other hand, bovine serum albumin displayed a relatively lower affinity for electrostatically stabilized nanoparticles due to the constrained entropy changes.

SUBMITTER: Podila R 

PROVIDER: S-EPMC3543341 | biostudies-other | 2012 Dec

REPOSITORIES: biostudies-other

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