Unidym and Guardian Industries Form Partnership to Develop and Commercialize Carbon Coated Glass Products

Guardian is one of the world's largest manufacturers of float glass and fabricated glass products for automotive and building materials businesses and is active in providing glass solutions for solar energy and electronics applications.

Under the agreement, Guardian will fund a joint development effort to optimize and scale carbon coated glass products. The companies initially plan to jointly market the coated glass products to customers in the touch panel industry. In the manufacturing phase, Unidym plans to supply electronic inks to Guardian for the manufacture of coated glass.

"To date, our manufacturing and marketing efforts in the touch panel industry have focused on carbon films on plastic to replace Indium Tin Oxide (ITO) on plastic in touch panels," explained Mark Tilley, President and CEO of Unidym. "We expect this partnership with Guardian will allow us to use our technology to replace ITO on glass products in the touch panel industry. We also hope to work with Guardian to introduce carbon coated glass products in other industries, including the photovoltaic, automotive, and building materials industries."

"Guardian's partnership with Unidym presents an exciting opportunity to pioneer the commercialization of CNT coatings on glass, combining strengths of both companies," said Jim St. Jean, electronics segment marketing director for Guardian. "Our collaboration is expected to set a new standard for low ohm Transmissive Conductive Coatings (TCC) on glass that form the backbone of touch panel and other electronic products. This new class of TCC glass products will serve to complement other glass and coated glass products in the pipeline for the electronics and solar markets."

About Guardian Industries Corp.

Guardian is a diversified global manufacturing company headquartered in Auburn Hills, Michigan, with leading positions in float glass, fabricated glass products, fiberglass insulation and other building materials for commercial, residential and automotive markets. Through its Science & Technology Center, Guardian is at the forefront of innovation including development of high performance glass coatings and other advanced products for solar energy and electronic glass applications. Guardian, its subsidiaries and affiliates employ 18,000 people and operate facilities throughout North America, Europe, South America, Asia, Africa and the Middle East. Visit www.guardian.com.

About Unidym, Inc.

Unidym is a leader in carbon nanotube-based transparent, conductive films (TCFs) for the electronics industry. TCFs are a critical component in devices such as touch panels, displays, and thin-film solar cells. For example, both touch panels and LCDs typically employ two TCF layers per device. Unidym's TCFs offer substantial advantages over the incumbent technology, indium-based metal oxides, including: improved durability, lower processing costs, and lower overall cost structure. For more information, visit: http://www.unidym.com. Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995 This news release contains forward-looking statements within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. These statements are based upon our current expectations and speak only as of the date hereof. Our actual results may differ materially and adversely from those expressed in any forward-looking statements as a result of various factors and uncertainties, including the future success of our scientific studies, our ability to successfully develop products, rapid technological change in our markets, changes in demand for our future products, legislative, regulatory and competitive developments, the financial resources available to us, and general economic conditions. Arrowhead Research Corporation's most recent Annual Report on Form 10-K and subsequent Quarterly Reports on Form 10-Q discuss some of the important risk factors that may affect our business, results of operations and financial condition. We disclaim any intent to revise or update publicly any forward-looking statements for any reason.

Unidym, Inc. John Miller, 408-636-7500 pr@unidym.com

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Guardian Industries Corp. Amy Hennes, 248-340-2109 ahennes@guardian.com