CombiMatrix (CBMX) has developed a core technology that is comprised of a semiconductor chip, that enables the execution of multiple, independent nano scale chemical experiments in parallel. This "lab-on-a- chip" is an interdisciplinary marriage of nanotechnology, biology and microelectronics. This chip consists of an array of 1,000 to 1.8 million microelectrodes on a square centimeter, each of which is independently addressable. In analogy with conventional microprocessors, each microelectrode can be thought of as a transistor, which performs a chemical reaction. Consequently, the density of microelectrodes can be increased to levels up to several million per square centimeter. Experiments that would take months or years, can now be performed in days using CombiMatrix chips. CBMX Homeland Security - On March 8, 2004, CombiMatrix was awarded a $5.9 contract from the U.S. Department of Defense for the continued development of its highly sensitive, flexible, and cost-effective systems for the detection of biological warfare agents. On July 22, 2004, CombiMatrix was awarded an additional $2.3 million for continued development of its biowarfare detection technology. CombiMatrix also recently announced KM-668, the lead compound in its KM family of therapeutics, into pre-clinical development and animal testing. The KM family of compounds is part of CombiMatrix's new internal program to develop therapeutics for exposure to terror weapons. As a subset of that program, KM-668 is designed as a treatment for exposure to radiological weapons.