摘要:
The invention relates to a polymer substrate for cultivating tissue cells. The substrate is provided in form of an oxygen-permeable flat membrane, preferably with ultra-filtration properties, and has an optimized amine content of at least 10 nmole amine function per cm2 membrane. The substrate can be used to treat burns and other tissue defects. The substrate can be rapidly populated with cells, in particular with keratinozytes, and supports reorientation of the cells after the populated membrane is transferred to a wound or a dermis equivalent. The substrate can also be later easily detached from the newly formed tissue structure.