a method for the self - assembled production of a topographically surface structured cellulose element . first , a mold is provided having on one side a first surface which is in a complementary manner topographically structured and which is permeable to oxygen . next , a liquid growth medium containing cellulose producing bacteria is provided . then , the mold is placed to form a interface such that the side of the mold with the first surface is in direct contact with the liquid growth medium , and an opposite side is facing air or a specifically provided oxygen containing gas surrounding . this allows bacteria to be produced and deposit cellulose on the first surface and developing on the interface a surface structured surface complementary thereto , until a cellulose layer with a thickness of the element of at least 0 . 3 mm is formed . finally ; the element is removed from the mold .