Åbo Akademi University

Fzmb Gmbh Forschungszentrum Fuer Medizintechnik Und Biotechnologie

Holger Wondraczek

Thomas Heinze

Pedro Fardim

Thomas Elschner

Friedrich Scholz

Olga Gabova

Provided herein are polysaccharide derivatives substituted (a) at a degree of substitution (DS1) of at least 0.05 by a fluorescent group (FG) having a mono or polycyclic ring system including at least one heteroatom selected from N, O and S and conjugated double bonds, and having an absorption band in the UV region of light and an emission band in the visible region of light, and bonded via a first linker to any one of the native functional groups of the polysaccharide repeating units; and (b) at a degree of substitution (DS2) of at least 0.05 by a charged group (CG) bonded via a second linker to any one of the native functional groups of the polysaccharide repeating units.

Polysaccharide derivatives as optical brightening agents

A functionalization is performed with a dissolved oligo- or polysaccharide derivative which contains at least one free functional group, especially an amino group, linked through a polar carbamate linkage and a spacer (X), according to the general formula I: 

Process for the functionalization of a surface

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Jena, Germany

Holger Wondraczek