Isonics Corporation Provides NeutroTest Update; Patent Filed on NT2 Enhancements.

GOLDEN, Colo. -- Isonics Corporation (Nasdaq:ISON), committed to the development of next-generation technology for the homeland security and semiconductor markets, announced today that a second generation NeutroTest unit has been shipped to the U.S. for use in customer demonstrations. NeutroTest is Isonics' portable, neutron-based explosive detection device that quickly evaluates the contents of sealed containers, suitcases, and packages, even, in some cases, if hidden behind steel or other dense materials that can't be penetrated by X-rays. NeutroTest is also capable of evaluating unexploded munitions to ascertain if the rounds are live.

The second generation instrument has been designated NT2 and incorporates substantial improvements over the first generation product that was sold to a German customer earlier this year. Among other design changes, it has two neutron detection tubes instead of one and has an innovative algorithm for data analysis to determine the presence of explosives and which algorithm can substantially reduce the instances of false positives caused by the presence of common, harmless substances. A patent application has been filed to protect these improvements.

"We believe the improved functionality that is present in NT2 as a result of these enhancements will allow us to introduce a higher performance and more useful product to the U.S. market," commented James Alexander, Isonics' Chairman and CEO, "even though the time required to re-engineer the product has put us behind our anticipated U.S. launch schedule. We are very excited about the innovations in NT2, and we look forward to demonstrating NT2 to U.S. prospects and customers in calendar 2006."

Isonics has signed an agreement with International Isotopes Inc., located in Idaho Falls, Idaho, to host its NeutroTest Demonstration and Training Facility. Isonics will provide NT2 demonstrations for interested U.S. customers at the Idaho demonstration and training facility and may also offer demonstrations at customer sites to the extent the customer has the proper radioactive materials licenses.

About Isonics Corporation

Isonics Corporation has three business divisions: (1) Homeland Security and Defense (2) Semiconductor, and (3) Life Sciences. Isonics is a world leader in isotopically engineered materials and through its semiconductor division produces isotopically pure silicon-28 chemicals, silicon-on-insulator wafers, wafer reclaim services and test wafers, including 300mm, for the semiconductor industry. Isonics' Life Sciences division markets and sells isotopes to the health care industry for the imaging and treatment of cancer. Stable isotopes can be thought of as ultra pure materials. This high degree of purification provides enhanced properties as compared to natural materials. Our efforts in the Homeland Security segment are nascent (notwithstanding our operations at Protection Plus Security Corporation) at the present time as we proceed to develop further our IMS and neutron-based detection technologies. Additional information may be obtained at the Company's Web site at www.isonics.com.

About International Isotopes Inc.

International Isotopes Inc. (INIS) manufactures a full range of nuclear medicine calibration and reference standards, manufactures cobalt-60 products such as teletherapy sources, and provides a wide selection of radioisotopes and radiochemicals for clinical research, life sciences, and industrial applications. The Company also provides a host of analytical, measurement, recycling, and processing services on a contract basis to clients.

Cautionary Statement

Except for historical information contained herein, this document contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements involve estimates, assumptions, known and unknown risks and uncertainties that may cause the Company's actual results or outcomes to be materially different from those anticipated and discussed herein. Further, the Company operates in industries where securities values may be volatile and may be influenced by regulatory and other factors beyond the Company's control. Other important factors that the Company believes might cause such differences are discussed in the risk factors detailed in the Company's 10-KSB for the year ended April 30, 2005, and reports subsequently filed with the Securities and Exchange Commission, which include the Company's historical cash flow difficulties, dependence on significant customers, and rapid development of technology, among other risks. In assessing forward-looking statements contained herein, readers are urged to carefully read all cautionary statements contained in these filings with the Securities and Exchange Commission.