Phys. Rev. Lett. 87, 088104 (2001) [4 pages]Electrophoretic Microrheology in a Dilute Lamellar Phase of a Nonionic SurfactantReceived 8 February 2001; published 7 August 2001 We measured the complex electrophoretic mobility μ*(ω) of nanometer-sized particles dispersed in a lyotropic lamellar phase, and observed two relaxation processes corresponding to the two characteristic lengths of lamellar structure. Faster relaxation is caused by the distortion field of lamellar phase induced by the colloidal particles, and slower relaxation is presumably due to the defects in lamellar structure. Since the dynamic transport property is strongly influenced by the microscopic circumstances as shown in this paper, this method is referred to as electrophoretic microrheology. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.088104
DOI:
10.1103/PhysRevLett.87.088104
PACS:
87.19.Tt, 82.70.Dd, 87.15.Tt, 87.16.Dg
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.