We have developed two strategies forÂ’  preparing tethered lipid bilayer membrane patches on solid surfaces by DNA hybridization.Â’  In the first strategy, single-stranded DNA strands are immobilized by click chemistry to a silica surface, whose remaining surface is passivated to prevent direct assembly of a solid supported bilayer.Â’  Then giant unilamellar vesicles (G

This project leverages ongoing research on the dynamics of DNA and vescicles within CPIMA.Â’  We have developed a novel microfluidic four-roll mill that allows all flow types (from extension to shear to rotation) to be accessed and have previously used it to examine DNA tumbling in mixed flows and, most recently, to study vesicle dynamics.

The magnetic anisotropy energy is among the most important functional properties of magnetic elements. It determines the orientation and stability of the magnetization as well as the mechanisms and the dynamics of the magnetization reversal.

A Hele-Shaw system was used by University of Chicago MRSEC researchers, Sidney Nagel and Heinrich Jaeger and their research groups, to explore the zero-surface-tension properties of granular "fluids."Â’  Theoretically, it was determined by Paul Wiegmann, also at the University of Chicago, that fluid fingering in the zero-surface-tension limit should lead to singular cusp structure locally and fractal geometry globally.Â’  Granular flow provides the first experime

Background: The geometry of a nanoring magnet provides unique magnetic configurations of onion, vortex, and twisted, which can be exploited in nanoring magnetic tunnel junctions (NRMTJs) .

Classroom Visits Program J. Blume, Division of Engineering Brown undergraduates and faculty visit local science/math classes or youth programs to present engineering topics to students in Grades K-12. Presentations are developed by students and faculty based on current research or topics covered in the Brown curriculum. Student groups, such as the National Society of Black Engineers Student Chapter, Engineers without Borders, and th FSAE Care Team participate. Example Presentations

Surfactants are everywhere in nature and everyday life: animals rely on lung surfactants to breathe, and mayonnaise would separate into oil and water without them. To develop advanced multiphase polymeric materials, the efficacy of synthetic surfactants must be determined and optimized.