Nanotechnology Now - Press Release: "Chemical engineering professor awarded two grants to investigate directed self-assembly"

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Eric Furst

Eric Furst

Abstract:
Eric Furst, associate professor in the Department of Chemical Engineering at the University of Delaware, has received two grants totaling $727,000 for his work on directed self-assembly of soft materials.

Chemical engineering professor awarded two grants to investigate directed self-assembly

Newark, DE | Posted on October 20th, 2009

The National Science Foundation (NSF) has awarded Furst $292,000 to investigate interactions and self-assembly of anisotropic colloidal particles in electric fields, while the Department of Energy (DOE) has granted him $435,000 to study directed self-assembly of nanodispersions.

Soft materials, which are neither crystalline solids nor simple liquids but lie somewhere in between, include soaps, paints, gels, plastics, glues, and biological tissues.

"Biological systems have provided us with the inspiration to engineer modern soft materials using self-assembly," Furst explains. "We're using the same principles to manipulate and control the interactions of colloidal particles and other building blocks so that they spontaneously organize themselves into structures that perform a desired function."

According to Furst, directed self-assembly is especially important for the development of nanotechnology, and his two recent grants are an outgrowth of previous funding to a group of faculty in the UD Department of Chemical Engineering through NSF's Nanotechnology and Interdisciplinary Research Team (NIRT) program.

"Engineering micro- to nanoscale devices and nanostructured materials requires control and understanding of the thermodynamics and kinetics of self-assembly of nanoscale building blocks in solution," he says.

One approach to providing that control is to use electric fields to guide the process in a particular way. The new NSF grant will support work addressing that issue, with a particular focus on unusual particles known as doublets, which resemble two spheres pushed together.

"We're interested in seeing how these particles polarize in an electric field and how their shape affects their ability to form a structure," Furst says. "The work promises to give us new insights into directed self-assembly."

The DOE project will be directed toward how the technology can be used to harvest soft materials for energy applications.

Article by Diane Kukich
Photo by Doug Baker

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