The efficiency of bead homogenization relies on several factors, including the material and size of the beads. Benchmark offers a variety of bead options to meet a wide range of samples Silica (glass) homogenizer beads are ready to use – acid washed and heat treated to remove contaminants and render them nuclease and protease free. 0.1mm diameter beads are the best choice for homogenization of gram positive and negative bacteria. 0.5mm diameter beads are used to homogenize bacteria, fungi, spores, molds and small yeasts. 1.0mm diameter beads can be used to homogenize fungi, spores, algae and larger yeasts. Triple-Pure™ Zirconium Homogenizer beads are ready to use and certified nuclease and protease free. The tubes are filled in a process that is tested by qPCR to be free of stray DNA. (6mm satellites are acid washed and heat treated, but not certified.) read more