How does DURA Innovations differ from lyophilization?

Человек открывает коробку с логотипом Beckman Coulter
Lyophilization, also known as freeze-drying, entails freezing the material and reducing the surrounding pressure so water in the material sublimates directly from a solid to a gas. What remains is a powder or pellet.

DURA Innovations reagents are dried down using a proprietary process that forms a stable, film-like coating that adheres to the bottom of a tube. Unlike DURA Innovations reagents, lyophilized reagents can move about freely in the tube, and can stick to the top and sides of the tubes, resulting in staining variability.

In addition, the use of lyophilized reagents requires a centrifugation step that is unnecessary with DURA Innovations.

Finally, lyophilized reagents are stable at 2°-25°C (36° – 77°F) whereas DURA Innovations reagents are stable at ambient temperature, and therefore never require refrigeration during shipping or storage.

Tests demonstrate that DURA Innovations reagents maintain their performance at temperatures up to 60°C (140°F).