Implant Sciences Appoints Industry Veteran as New Vice President of Sales and Service

Implant Sciences Corporation (AMEX: IMX) a leading developer of advanced explosives detection products and technology, today announced the appointment of Richard Meyerhoff as its new Vice President of Sales and Service in the Security Division. Mr. Meyerhoff replaces Joanne Arsenault who recently departed from the Company. Mr. Meyerhoff has 20 years of business experience, including sales leadership and management positions with companies engaged in the manufacture and sale of x-ray screening equipment for security and contraband detection, x-ray microanalysis and fluorescence systems. Mr. Meyerhoff spent four years as International Sales Manager and Director of Sales with EG&G Astrophysics, now known as L-3 Security and Detection Systems; 8 years as Managing Director of several international business units of Thermo NORAN, and since 2003 with L-3 Communications Security and Detection Systems as VP of Global Sales. Mr. Meyerhoff holds a BA in Economics from Universidad Catolica Argentina and an MBA from the University of Michigan. Mr. Meyerhoff speaks several foreign languages and has had responsibility for leading and managing sales operations, distributor networks and business units in the U.S., Middle East, Asia-Pacific, Europe and Latin American regions. "I am excited about joining the Implant Sciences team at this important stage of the Company’s development,” stated Mr. Meyerhoff. "The Company has demonstrated its explosives trace detection technology as clearly differentiated from the competition and has introduced competitive products for security applications. We will be focusing our resources on expanding the security business and I look forward to leveraging my global relationships to aggressively drive domestic and international sales.” Phillip C. Thomas, Implant Sciences President and CEO, commented, "In defining the requirements for this important sales leadership position, we sought an individual with proven experience in building, leading and managing a domestic and international sales and service organization within the security systems industry. Richard Meyerhoff comes to us from the Security and Detection Systems group of L-3 Communications, a respected global leader in the x-ray security business, where, as VP of Global Sales, he was instrumental in developing and executing sales campaigns, penetrating new markets for the sale of screening products for security, and significantly growing revenues. We welcome Richard to our team and look forward to seeing the impact of his leadership and ability to leverage his experience in driving sales while also establishing a robust technical services and support capability.” As a reminder, Implant Sciences will be exhibiting at the U.S. Maritime Security Expo 2007 at the Jacob Javits Convention Center in New York City from November 27, 2007 through November 28, 2007. Senior executives, including Mr. Meyerhoff and other corporate representatives, will be available at Booth #925 to meet with customers, distributors, vendors, shareholders, investors and other parties interested in learning more about the Company, its technology and products. About Implant Sciences Implant Sciences develops, manufactures and sells products through its primary business units: (i) explosives trace detection (ETD) systems for homeland security, defense, and other security related applications and (ii) state of the art services for the medical and semiconductor industries. The Company has developed proprietary technology used in its commercial portable and bench-top ETD systems, which ship to a growing number of locations around the world and domestically, and is developing several next-generation ETD systems. The Company’s ETD products and developments address many important security needs in aviation, cargo, transportation, and other related elements of the government and commercial infrastructure. In addition to its security market focus, the Company provides high technology coatings for a variety of medical products at its main facility in Wakefield, Massachusetts and provides ion implantation services to the semiconductor industry from its location in Sunnyvale, California. For further details on the Company and its products, please visit the Company’s new website at www.implantsciences.com. Implant Sciences believes this press release contains forward-looking statements as that term is defined in the Private Securities Litigation Reform Act of 1995. Such forward-looking statements are subject to risks and uncertainties. Such statements are based on management's current expectations and are subject to facts that could cause results to differ materially from the forward-looking statements. For further information, you are encouraged to review Implant Sciences’ filings with the Securities and Exchange Commission, including its Annual Report on Form 10K for the period ended June 30, 2007 and Quarterly Report for the period ended September 30, 2007. The Company assumes no obligation to update the information contained in this press release.