LOGAN, Utah, (March 30, 2009) – Thermo Fisher Scientific Inc., the world leader in serving science, has expanded its stem cell research offering with the introduction of four new cell culture products: Thermo Scientific HyClone HyStem Hydrogels, HyStem Hydrogel, HyStem-C and HyStem-HP.

Stem cells need to be cultured on uniquely designed surfaces for optimal proliferation or differentiation into specific cell types. HyClone Hydrogels provide a wide array of extracellular matrices designed specifically to meet the exacting requirements of stem cell research. The HyStem line of extracellular matrix kits are based on hyaluronic acid (HA) – a component of the extracellular matrix (ECM) that is abundant in embryos and in the microenvironments surrounding stem cells. HyStem hydrogels provide a compliant viscoelastic matrix that is physiologically relevant for stem cells.

The HyClone HyStem Hydrogel is recommended for researchers to build stem cell culture attachment surface from scratch. HyStem-C is recommended to initiate experiments with a general attachment factor for cell culture. HyStem-HP is recommended for cells that require the slow release of specific growth factors to more fully optimize the growth surface.

About Thermo Fisher Scientific Thermo Fisher Scientific Inc. (NYSE: TMO) is the world leader in serving science, enabling our customers to make the world healthier, cleaner and safer. With annual revenues of $10.5 billion, we have more than 34,000 employees and serve over 350,000 customers within pharmaceutical and biotech companies, hospitals and clinical diagnostic labs, universities, research institutions and government agencies, as well as environmental and industrial process control settings. Serving customers through two premier brands, Thermo Scientific and Fisher Scientific, we help solve analytical challenges from routine testing to complex research and discovery. Thermo Scientific offers customers a complete range of high-end analytical instruments as well as laboratory equipment, software, services, consumables and reagents to enable integrated laboratory workflow solutions. Fisher Scientific provides a complete portfolio of laboratory equipment, chemicals, supplies and services used in healthcare, scientific research, safety and education. Together, we offer the most convenient purchasing options to customers and continuously advance our technologies to accelerate the pace of scientific discovery, enhance value for customers and fuel growth for shareholders and employees alike. Visit www.thermofisher.com.