TY - JOUR
T1 - Swimmer-microrheology
AU - Yasuda, Kento
AU - Okamoto, Ryuichi
AU - Komura, Shigeyuki
N1 - Publisher Copyright:
© 2017 The Physical Society of Japan.
PY - 2017/4/15
Y1 - 2017/4/15
N2 - We discuss the locomotion of a three-sphere microswimmer in a viscoelastic medium and propose a new type of active microrheology. We derive a relation that connects the average swimming velocity and the frequency-dependent viscosity of the surrounding medium. In this relation, the viscous contribution can exist only when the time-reversal symmetry is broken, whereas the elastic contribution is present only when the structural symmetry of the swimmer is broken. Purcell's scallop theorem breaks down for a three-sphere swimmer in a viscoelastic medium.
AB - We discuss the locomotion of a three-sphere microswimmer in a viscoelastic medium and propose a new type of active microrheology. We derive a relation that connects the average swimming velocity and the frequency-dependent viscosity of the surrounding medium. In this relation, the viscous contribution can exist only when the time-reversal symmetry is broken, whereas the elastic contribution is present only when the structural symmetry of the swimmer is broken. Purcell's scallop theorem breaks down for a three-sphere swimmer in a viscoelastic medium.
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U2 - 10.7566/JPSJ.86.043801
DO - 10.7566/JPSJ.86.043801
M3 - Article
AN - SCOPUS:85017427684
SN - 0031-9015
VL - 86
JO - journal of the physical society of japan
JF - journal of the physical society of japan
IS - 4
M1 - 043801
ER -