Paper Number
PO10 

Session
Poster Session

Title
Tuning interaction potentials to modify the structure and rheology of nanoemulsion colloidal gels

Presentation Date and Time
October 17, 2018 (Wednesday) 6:30

Track / Room
Poster Session / Woodway II/III

Authors (Click on name to view author profile)

  1. Vehusheia, Signe Lin Kuei (ETH Zürich)
  2. Cheng, Li-Chiun (Massachusetts Institute of Technology)
  3. Doyle, Patrick S. (Massachusetts Institute of Technology, Department of Chemical Engineering)

Author and Affiliation Lines (in printed abstract book)
Signe Lin Kuei Vehusheia1, Li-Chiun Cheng2, and Patrick S. Doyle2
1ETH Zürich, Zurich, Switzerland; 2Massachusetts Institute of Technology, Cambridge, MA 02139

Speaker / Presenter 
Vehusheia, Signe Lin Kuei

Text of Abstract
Nanoemulsions are widely used in applications such as food products, cosmetics, pharmaceuticals, and enhanced oil recovery for which the ability to engineer material properties is desirable. Moreover, nanoemulsions are emergent model colloidal systems due to the ease in synthesizing monodisperse samples, flexibility in formulations, and tunable material properties. In this work, we systematically studied a dual-responsive nanoemulsion system developed in our group. The structures and the rheological properties are engineered by manipulating the inter-particle potential through thermally responsive polymer bridging and screening of electrostatic interactions. Our results offer a route to control the material properties of an attractive colloidal system by carefully tuning the interactive potentials and sequentially triggering the colloidal self-assembly. The control and understanding of these properties can be used for designing hierarchically structured hydrogels and complex colloidal-based materials for advanced applications.