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Effects of surface functional groups on the formation of nanoparticle-protein corona
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) The diameter distribution for laser ablated Ag NPs exhibits a unimodal distribution with an average ∼24 nm.The inset shows a representative TEM image for LA-Ag NPs (b) The hydrodynamic diameter for BSA coated Ag NPs is different for different surface coatings. TEM images for BSA coated citrate coated Ag NPs (c) and PVP coated Ag NPs (d) and LA Ag NPs (e) show that the coating is maxium for LA Ag NPs in agreement with the hydrodynamic diameter. The scale bar for all the panels is 20 nm.

Image of FIG. 2.
FIG. 2.

Surface plasmon spectra for citrate coated (a), PVP coated (b) and LA or uncoated (c) Ag NPs as a function of increasing BSA. (d) The redshift in the surface plasmon peak of Ag NPs as a function of BSA concentration.

Image of FIG. 3.
FIG. 3.

(a) FTIR spectra for native BSA and BSA coated LA Ag NPs, citrate-and PVP-coated Ag NPs. (b) The ratio of the areas under β-sheets to α-helices (I1630/I1650 ) provides a quantitative measure for net change in the conformational entropy.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effects of surface functional groups on the formation of nanoparticle-protein corona