Paper Number
AM4 

Session
Active, Motile, and Field Responsive Materials

Title
Deformation dynamics of magnetically actuated colloidal clusters

Presentation Date and Time
October 10, 2017 (Tuesday) 11:05

Track / Room
Track 1 / Crystal A

Authors (Click on name to view author profile)

1. Biswal, Sibani Lisa (Rice University, Chemical Engineering)

Author and Affiliation Lines (in printed abstract book)
Sibani Lisa Biswal
Chemical Engineering, Rice University, Houston, TX 77005

Speaker / Presenter 
Biswal, Sibani Lisa

Text of Abstract
Colloidal particles have proven to be a useful for creating microscale models of macromolecular systems. The system utilizes a magnetic field to direct and control the spacing between particles and DNA as the spring that chemically connects the particles together, as a mimic to fundamental bead-spring models. This letter elucidates the rotational dynamics of these colloidal chains, and demonstrate our understanding of the results both computationally and analytically. While some rotational modes are in line with other well-studied systems in the literature, we access and classify new modes, such as coiling, as a function of magnetic field frequency and chain length.