Browsing NTNU Open by Author "Kopplin, Georg"
Now showing items 1-5 of 5
-
Alginate gels cross-linked with mixtures of calcium and chitosan oligomers: Effect on swelling properties and leakage from the gel
Myrnes, Erlend Eikeland (Master thesis, 2016)A new alginate gelling system was recently reported where chitosan oligomers were used to cross-link alginate (poly-M) (Khong et al., 2013). These results have been followed up by determining the gel strength and syneresis ... -
Alginate gels crosslinked with chitosan oligomers - a systematic investigation into alginate block structure and chitosan oligomer interaction
Kopplin, Georg; Lervik, Anders; Draget, Kurt Ingar; Aachmann, Finn Lillelund (Peer reviewed; Journal article, 2021)Three alginates with fundamentally different block structures, poly-M, poly-G, and poly-MG, have been investigated upon ionic crosslinking with chitosan oligosaccharides (CHOS), using circular dichroism (CD), rheology, and ... -
Alginate gels with a combination of calcium and chitosan oligomer mixtures as crosslinkers
Feng, Yiming; Kopplin, Georg; Sato, Kimihiko; Draget, Kurt Ingar; Vårum, Kjell Morten (Journal article, 2017)Alginates are polysaccharides that are widely used in relation to their ability to form gels. Recently we reported that alginates may also form gels with chitosan oligomers as crosslinkers (Khong, Aarstad, Skjåk-Bræk, ... -
Effects of Sulfated Fucans from Laminaria hyperborea Regarding VEGF Secretion, Cell Viability, and Oxidative Stress and Correlation with Molecular Weight
Dorschmann, Philipp; Kopplin, Georg; Roider, Johann; Klettner, Alexa (Journal article; Peer reviewed, 2019)Background: Sulfated fucans show interesting effects in the treatment of ocular diseases (e.g., age-related macular degeneration), depending on their chemical structure. Here, we compared three purified sulfated fucans ... -
Marine Polysaccharides: Fucoidan, Alginate and Chitosan – An Investigation of Physical, Chemical and Bioactive Properties
Kopplin, Georg (Doctoral theses at NTNU;2024:11, Doctoral thesis, 2024)The marine polysaccharides fucoidan, alginate and chitosan are garnering significant research interest in the field of biomedical applications due to their broad range of bioactivities, compatibility with living tissues ...