TY - JOUR
T1 - The nanoparticle protein corona formed in human blood or human blood fractions
AU - Lundqvist, Martin
AU - Augustsson, Cecilia
AU - Lilja, Malin
AU - Lundkvist, Kristoffer
AU - Dahlbäck, Björn
AU - Linse, Sara
AU - Cedervall, Tommy
PY - 2017/4/1
Y1 - 2017/4/1
N2 - The protein corona formed around nanoparticles in protein-rich fluids plays an important role for nanoparticle biocompatibility, as found in several studies during the last decade. Biological fluids have complex compositions and the molecular components interact and function together in intricate networks. Therefore, the process to isolate blood or the preparation of blood derivatives may lead to differences in the composition of the identified protein corona around nanoparticles. Here, we show distinct differences in the protein corona formed in whole blood, whole blood with EDTA, plasma, or serum. Furthermore, the ratio between particle surface area to protein concentration influences the detected corona. We also show that the nanoparticle size per se influences the formed protein corona due to curvature effects. These results emphasize the need of investigating the formation and biological importance of the protein corona in the same environment as the nanoparticles are intended for or released into.
AB - The protein corona formed around nanoparticles in protein-rich fluids plays an important role for nanoparticle biocompatibility, as found in several studies during the last decade. Biological fluids have complex compositions and the molecular components interact and function together in intricate networks. Therefore, the process to isolate blood or the preparation of blood derivatives may lead to differences in the composition of the identified protein corona around nanoparticles. Here, we show distinct differences in the protein corona formed in whole blood, whole blood with EDTA, plasma, or serum. Furthermore, the ratio between particle surface area to protein concentration influences the detected corona. We also show that the nanoparticle size per se influences the formed protein corona due to curvature effects. These results emphasize the need of investigating the formation and biological importance of the protein corona in the same environment as the nanoparticles are intended for or released into.
UR - http://www.scopus.com/inward/record.url?scp=85017535670&partnerID=8YFLogxK
U2 - 10.1371/journal.pone.0175871
DO - 10.1371/journal.pone.0175871
M3 - Article
C2 - 28414772
AN - SCOPUS:85017535670
SN - 1932-6203
VL - 12
JO - PLoS ONE
JF - PLoS ONE
IS - 4
M1 - e0175871
ER -