Lantibiotics are potential alternatives to antibiotics because of their broad-range killing spectrum. The producer strain is immune against its own synthesized lantibiotic via the expression of two proteins LanI and LanFEG. Recently, gene operons are found in mainly human pathogenic strains, which confer resistance against lantibiotics. Of all the lantibiotics discovered till date, nisin produc...

" Scire est nescire, nisi id me Scire alius sciret AUTUMN, 1932.

" Scire est nescire, nisi id me Scire alius sciret AUTUMN, 1928.

................................................................................................................................ 7 Tiivistelmä (abstract in Finnish) .......................................................................................... 8 Introduction .......................................................................................................................... 9 1...

" Scire est nescire, nisi id me Scire alius sciret WINTER, 1929.

Scire est nescire, nisi id me Scire alius sciret SUMMER, 1940.

Interdiffusion studies on high-T, superconducting YBasCu,O,_s thin films with thicknes~s in the range of 2000-3000 A, on a Si(ll1) substrate with a buffer layer have been performed. The buffer layer consists of a 400 A thick epitaxial Nisi, layer, covered with 1200 A of polycrystalline 210,. YBa,Cu,O,_s films were prepared using laser ablation. The YBa,Cu,O,_, films on the Si/NiSi,/ZrOs substra...