METHOD FOR THE PRODUCTION OF STRUCTURED CELLULOSE PATCHES OR ELEMENTS AND DEVICES MADE USING SUCH A METHOD

摘要

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.

主权项

1. A method for the self-assembled production of a topographically surface structured cellulose element wherein
in a first step a mold with on one side a first surface which is, with respect to the topographically surface structured cellulose element to be produced, in a
complementary manner topographically surface structured and which is permeable to oxygen is provided, whereina liquid growth medium containing cellulose producing bacteria is provided, andwhereinthe mold is placed to form a liquid/air interface of the liquid growth medium such that the side of the mold with the first surface is in direct contact with the liquid growth medium, and with an opposite side is facing air or a specifically provided oxygen containing gas surrounding,allowing for said bacteria to produce and deposit cellulose on said first surface and developing on the interface therewith a topographically surface structured surface complementary said first surface, until a contiguous cellulose layer with a thickness of the element (10) of at least 0.3 mm is formed;and wherein in a second step said element is removed from said mold.