Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session M07: Microflows Meet Soft Matter: Compliance, Growth, Instabilities and Beyond
11:30 AM–2:18 PM,
Wednesday, March 17, 2021
Room: 07
Sponsoring
Units:
DSOFT DFD GSNP
Chair: Pejman Sanaei, New York Inst of Tech
Abstract: M07.00007 : Tunable viscoelasticity of double gel networks: colloidal gel embedded in a hydrogel matrix
1:06 PM–1:18 PM
Live
Presenter:
Ippolyti Dellatolas
(Massachusetts Institute of Technology MIT)
Authors:
Ippolyti Dellatolas
(Massachusetts Institute of Technology MIT)
Jae Hyung Cho
(Massachusetts Institute of Technology MIT)
Irmgard Bischofberger
(Massachusetts Institute of Technology MIT)
We create double gel networks consisting of a colloidal gel embedded within a hydrogel matrix. Depending on the relative strength between the two networks, we can tune the rheology to be either dominated by the colloidal gel, the hydrogel, or to exhibit features characteristic of both systems. This allows us to adjust both the sample modulus and the yielding behavior. Looking beyond the macroscopic mechanical characteristics, we discuss the changes in the microscopic dynamics of the colloidal gel occurring as the hydrogel network forms around it. We use differential dynamic microscopy and confocal fluorescence microscopy to access the variations in the structure and network fluctuations of the colloidal gel.
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2024 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700