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    Film formation of omega-aminoalkylcellulose carbamates - A quartz crystal microbalance (QCM) study

    Year: 2015

    Journal: CARBOHYDRATE POLYMERS, Volume 116, 13 February 2015, Pages 111–116, 20150430

    Authors: Elschner, Thomas; Doliska, Ales; Bracic, Matej; Stana-Kleinschek, Karin; Heinze, Thomas

    Organizations: Univ Jena, Ctr Excellence Polysaccharide Res, Inst Organ Chem & Macromol Chem, D-07743 Jena, Germany; Univ Maribor, Lab Characterizat & Proc Polymers, Fac Mech Engn, SI-2000 Maribor, Slovenia

    The film formation of novel omega-aminoalkylcellulose carbamates on gold surface was studied by means of quartz crystal microbalance with dissipation monitoring (QCM-D) and atomic force microscopy (AFM). The influence of the pH value of the buffer solution, the concentration, the degree of polymerization, and the structure (spacer length) of the polymers on the coating was investigated. The layer formation was explained based on the pK(a) value and the degree of substitution of the omega-aminoalkylcellulose carbamates determined by potentiometric titration. This work provides novel supporting materials that might be applied in field of immobilization of biomolecules. (C) 2014 Elsevier Ltd. All rights reserved.