TY - JOUR
T1 - A tracer microrheology for determination of viscoelasticity of dilute ovalbumin colloids
AU - Bakhsh, Ahmed
AU - Elobeid, Tahra
AU - Avci, Esra
AU - Demirci, Mehmet
AU - Taylan, Osman
AU - Ozmen, Duygu
AU - Meral, Raciye
AU - Yilmaz, Mustafa Tahsin
N1 - Publisher Copyright:
© 2021 ICE Publishing: All rights reserved.
PY - 2021/11/1
Y1 - 2021/11/1
N2 - This study seems to be the first effort to determine the viscoelastic properties of dilute ovalbumin colloids using dynamic-light-scattering-based optical microrheology using carboxylated melamine microparticles as the tracer probe. A generalized form of the Stokes-Einstein equation constructed based on Laplace transformation of the mean square displacement, 〈Δr 2(t)〉, was employed to compute the viscoelastic moduli (storage modulus, G′, and loss modulus, G″). 〈Δr 2(t)〉 was determined to increase with time by reaching a maximum plateau at a time between 10-3 and 10-1 s with no further increase, revealing the elastic nature of dilute ovalbumin colloids within the given time. On the other hand, ovalbumin colloids exhibited different viscoelastic properties at two different frequency ranges. The measurements and interpretation of data revealed that the technique used seems to ensure a fast and effective method for measuring the viscoelastic properties of ovalbumin colloids at very low concentration levels.
AB - This study seems to be the first effort to determine the viscoelastic properties of dilute ovalbumin colloids using dynamic-light-scattering-based optical microrheology using carboxylated melamine microparticles as the tracer probe. A generalized form of the Stokes-Einstein equation constructed based on Laplace transformation of the mean square displacement, 〈Δr 2(t)〉, was employed to compute the viscoelastic moduli (storage modulus, G′, and loss modulus, G″). 〈Δr 2(t)〉 was determined to increase with time by reaching a maximum plateau at a time between 10-3 and 10-1 s with no further increase, revealing the elastic nature of dilute ovalbumin colloids within the given time. On the other hand, ovalbumin colloids exhibited different viscoelastic properties at two different frequency ranges. The measurements and interpretation of data revealed that the technique used seems to ensure a fast and effective method for measuring the viscoelastic properties of ovalbumin colloids at very low concentration levels.
KW - molecular properties
KW - rheology
KW - thermal properties
UR - https://www.scopus.com/pages/publications/85120690639
U2 - 10.1680/jemmr.20.00282
DO - 10.1680/jemmr.20.00282
M3 - Article
AN - SCOPUS:85120690639
SN - 2046-0147
VL - 11
JO - Emerging Materials Research
JF - Emerging Materials Research
IS - 1
M1 - A548
ER -