21. I think Arizona is all calcium ( a base material ). 22. He is exploiting supramolecular methods to generate graphene based materials with tunable properties. 23. Ever more sophisticated processes were devised to prepare products that replaced solvent-based materials . 24. It was yeast-base material , the kind only the Terrestrial Empire produced. 25. What we want to do is replace petroleum in plastics with bio-based materials . 26. Examples of chemical poisoning include chlorine-based materials released into the atmosphere. 27. Fossil fuels _ natural gas, propane, gasoline, fuel oil, charcoal _ are carbon-based materials . 28. The process uses a glass-based material as a purifying agent. 29. I was the one inserting well sourced science based material . 30. But actual bioceramic aggregates are composed of pure medical graded calcium silicate based material .
