Coating germ-free

Polymer Glass Coating Creates Germ-Free Surfaces, MD DI, Jan. 2002. 

Bealmer, P.M., Holtermann, O.A., and Mirand, E.A. 1984. Influence of the microflora on the immune response, I General characteristics of the germ-free animal. In The Germ-Free Animal in Biomedical Research (M.E. Coates and B.E. Gustafsson, eds), pp. 335-346. Academic Press, London. 

Germ Free Animal in Biomedical Research," M.E. Coates and B.E. Gustaffson, eds.. Laboratory Animals Ltd., London (1984). 

Comparison of the Overall Composition of Cell Wall Preparations. As can be seen from Table I, cell wall preparations showed a significant difference in their polymer composition. The endosperm cell walls resembled primary walls, since they were virtually free of lignin but rich in pectic substances. On the other hand, the cell wall preparations obtained from the caryopsis coat and the aleuron tissue were highly lignified, and their pectic content was very low. The germ cell wall showed a somewhat intermediate composition between these two types, probably reflecting the fact that it consists of several different tissues. 

---