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- W2919477035 abstract "Upon contact with biological fluids, the surface of nanoparticles is surrounded by many types of proteins, forming a so-called “protein corona”. The physicochemical properties of the nanoparticle/corona complex depend predominantly on the nature of the protein corona. An understanding of the structure of the corona and the resulting complex provides insight into the structure–activity relationship. Here, we structurally evaluate the soft and hard components of the protein corona, formed from polystyrene (PS) nanoplastics and human serum albumin (HSA). Using circular dichroism spectroscopy to elucidate the structure of HSA within the complex, we establish the effect of nanoparticle size and pH on the nature of the protein corona formed- whether hard or soft. Despite the weak interaction between PS and the HSA corona, small angle neutron scattering revealed the formation of a complex structure that enhanced the intermolecular interactions between HSA proteins, PS particles, and the HS/PSA complexes. Fractal formation occurred under conditions where the interaction between PS and HSA was strong, and increasing HSA concentrations suppressed the degree of aggregation. The size of the nanoparticles directly influenced the nature of the protein corona, with larger particles favoring the formation of a soft corona, due to the decreased PS–HSA attraction." @default.
- W2919477035 created "2019-03-11" @default.
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- W2919477035 date "2019-03-01" @default.
- W2919477035 modified "2023-10-16" @default.
- W2919477035 title "Soft and Hard Interactions between Polystyrene Nanoplastics and Human Serum Albumin Protein Corona" @default.
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- W2919477035 doi "https://doi.org/10.1021/acs.bioconjchem.9b00015" @default.
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