Seminar Announcement, 02/03/2015
Levich Institute Seminar Announcement, 02/03/2015
Tuesday, 02/03/2015
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Professor Sibani Lisa Biswal
Rice University
Department of Chemical and Biomolecular Engineering

"Directing Colloidal Systems with Magnetic Fields and DNA"

ABSTRACT


One of the most exciting areas in colloid research is the control of interparticle interactions to generate new structures. The ease of tuning interactions, size, shape and composition has made these nano: and micrometer sized particles appealing probes for a number of fundamental studies. Recent work has focused on the use of colloidal particles that can act as models for studying the fundamental phenomena of atomic systems. The self:assembly of these “colloidal atoms” has led to investigations of the dynamics of chemical transformations such as nucleation or phase transitions. I will describe the application of a unique colloidal assembly system, with anisotropic interaction potential,to study material properties, such as phase transitions and melting. Additionally, studies on out of equilibrium phenomena will offer novel dynamic behavior, such as colloidal microscale swimmers. Our results promise to open up new insights into magnetically actuated 2:D materials. I will also describe how my group has developed synthetic materials consisting of chains of patterned magnetic colloids that have been linked together with DNA. This is classic bead:spring:bead model that is can used to describe polymer chains. I will describe the formation mechanism and stability of these “colloidal polymer”chains.

BRIEF ACADEMIC/EMPLOYMENT HISTORY

Dr. Sibani Lisa Biswal is an Associate Professor at the Department of Chemical and Biomolecular Engineering at Rice University in Houston, TX and leads the Soft Matter Engineering Laboratory. She has a B.S in chemical engineering fromCaltech (1999)and a Ph.D. in chemical engineering fromStanford University (2004). She is therecipient of an ONR Young Investigator Award (2008),a National Science Foundation CAREER award (2009), Rice U. Graduate Student Association Faculty Teaching and Mentoring Award (2012), and the Southwest Texas Section AICHE Best Fundamental Paper Award (2014).

RECENT RESEARCH INTERESTS

Dr. Biswal’s research focuses on the directed assembly of colloidal systems with magnetic fields, nanomaterials for lithiumion batteries, and the understanding and manipulation of microscale fluids for oil processes.



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