Principal Applications

  • Nanoparticle milling
  • Preparation of ultra-fine nanoparticles
  • Biological cell disruption
  • Improve solubility of small molecules

Advantages

  • Creates nanoparticles less than 100 nm
  • Ultra High Purity
  • Exceptional wear resistance
  • Minimizes contamination
  • Uniform particle size; prevents screen binding
  • Highly efficient
  • Autoclavable / steam sterilizable
  • Scalable
  • Low media density; enables high media loads and agitation speeds
  • Generates less heat than traditional media
  • Biologically inert; prevents chemical reactions and composition changes

Systems

  • AISI 316 stainless steel or other metal alloy agitator bead mills
  • High-speed dispersers
  • Homogenizers
  • Rotor-stators

Typical Physical & Chemical Characteristics:

Polymer Structure Gel polystyrene crosslinked with divinylbenzene
Appearance Non-aggregated spherical Beads, white to light yellow in color
< 200 µm (max.) 0.02 %
425 – 575 µm (min.) 95 %
Particle Size Range 450 - 550 µm
Loss on drying (max.) 0.5 %
Residual styrene (max.) 50 ppm
Residual divinylbenzene (max.) 50 ppm
Residual ethylvinylbenzene (max.) 50 ppm
Residual solvent – methanol (max.) 100 ppm
Impurities Heavy Metals (max.) 10 ppm
Total Aerobes < 10 cfu/g
Total Moulds < 10 cfu/g
Total Yeasts < 10 cfu/g
Escherichia coli Negative/10 g
Salmonella species Negative/10 g
Pseudomonas aeruginosa Negative/10 g
Staphylococcus aureus Negative/10 g
Bacterial endotoxin test (max.) 0.5 EU/g
Identification (FTIR) Conform to standard