Sub- or supercritical CO2 can be used to produce foams
This novel method allows processing of some polymers without the use of organic solvents or thermal energy. Thus, inclusion of bioactive substances or thermo sensitive drugs is possible.
Porosity, pore size and pore distribution can be varied an a broad range. Using this method, manufacturing of defect analogous implants is possible within minutes in a sterile processing chain. Resorbable foam made by CO2-method