Tuesday, March 20, 2001
Dr. Jeffrey Moore found a way of directing fluids to their
destinations without walls. Instead of walls, the University of Illinois
professor of chemistry uses layers of materials that are hydrophilic (having an
affinity towards water) and hydrophobic (not having an affinity towards water)
for creating virtual walls.
The walls are created by an attraction between the liquid and the
top and bottom surfaces. As aqueous solution is injected into the multi-layer
cartridge, it spans the gap from top to bottom, but confines itself to the
hydrophilic pathways and does not spill into adjacent areas.
"One advantage of our approach is the simplicity in fabrication
and the fact that our devices can be manufactured in parallel via lithography"
says Moore. "Our ultimate goal is low-cost, easy-to-make microfluid devices that
require no external power supply, but that are still capable of complex
functionality," he explains.
For more information, contact Moore at (217) 244-4024 or e-mail firstname.lastname@example.org.