South San Francisco-based Fluidigm has introduced its Topaz Growth Chip for protein crystal formation. The chip is the first in a line of microfluidic devices that Fluidigm is planning to release for the generation of large, diffraction-quality protein crystals, according to the company. The company already released a set of crystallization screening chips based on its microfluidics technology back in March 2003, but the crystals produced from such screens often do not fill the necessary size and quality requirements for X-ray diffraction.