TY - JOUR
T1 - Effect of interfacial viscoelasticity on the bulk linear viscoelastic moduli of globular protein solutions
AU - Zhang, Zhenhuan
AU - Barman, Sourav
AU - Christopher, Gordon F.
PY - 2014/5/14
Y1 - 2014/5/14
N2 - The role of interfacial rheology on the bulk linear viscoelastic moduli of low concentration bovine albumin solutions is probed. Previously reported soft gel properties of these systems were attributed to either protein aggregation or organization within the bulk. Instead, these behaviors are shown to be attributable to the measurement error caused by interfacial rheology due to adsorption of bovine serum albumin to the air and water interface. Even at low bulk concentrations, fast interfacial adsorption results in erroneous measurements. When these effects are removed, the solutions are viscous dominated with a dynamic viscosity slightly larger than water.
AB - The role of interfacial rheology on the bulk linear viscoelastic moduli of low concentration bovine albumin solutions is probed. Previously reported soft gel properties of these systems were attributed to either protein aggregation or organization within the bulk. Instead, these behaviors are shown to be attributable to the measurement error caused by interfacial rheology due to adsorption of bovine serum albumin to the air and water interface. Even at low bulk concentrations, fast interfacial adsorption results in erroneous measurements. When these effects are removed, the solutions are viscous dominated with a dynamic viscosity slightly larger than water.
UR - http://www.scopus.com/inward/record.url?scp=84901339445&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.89.052306
DO - 10.1103/PhysRevE.89.052306
M3 - Article
C2 - 25353799
AN - SCOPUS:84901339445
SN - 1539-3755
VL - 89
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 5
M1 - 052306
ER -