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Dynamics of early skin formation of tiling mortars investigated by microscopy and diffuse reflectance infrared Fourier transformed spectroscopy
(Elsevier, 03/2013) Bühler, Theodor; Zurbriggen, Roger; Pieles, Uwe; Huwiler, L.; Raso, Renzo
A freshly applied mortar layer is exposed to the environment and forms a skin in the following minutes. Skinning changes significantly the surface properties and therefore limits application procedures. In the case of a tile adhesive, the skin that is formed before the tile is embedded can reduce resulting adhesion properties. Reflected light microscopy reveals that surface “lakes” disappear between 5 and 10 min after mortar application and DRIFTS (diffuse reflectance infrared Fourier transformed spectroscopy) indicates that films of organics and carbonates form simultaneously at the surface.
01A - Beitrag in wissenschaftlicher Zeitschrift
Modified oligonucleotides
(World Intellectual Property Organization, 08.01.1998) De Mesmaeker, Alain; Wendeborn, Sebastian; Lebreton, Jaques
It is one object of the present invention to provide an oligonucleotide of formula (1): 5'-(U)n-3' in which U is an identical or different radical of a natural or a synthetic nucleoside, wherein the oligonucleotide comprises at least one modified nucleotide dimer comprising two nucleoside analogs connected via an amide-bond that has a certain configuration; the synthesis of these compounds and their use in pharmaceutical preparations.
12 - Patent