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Triggering protein adsorption on tailored cationic cellulose surfacesMohan, Tamilselvan ...The equipment of cellulose ultrathin films with BSA (Bovine Serum Albumin) via cationization of the surface by tailor made cationic celluloses is described. In this way, matrices for controlled ... protein deposition are created whereas the extent of protein affinity to these surfaces is controlled by the charge density and solubility of the tailored cationic cellulose derivative. In order to understand the impact of the cationic cellulose derivatives on the protein affinity, their interaction capacity with fluorescently labeled BSA is investigated at different concentrations and pH values. The amount of deposited material is quantified using QCM-D (Quartz Crystal Microbalance with Dissipation Monitoring, wet mass) and MP-SPR (Multi-Parameter Surface Plasmon Resonance, dry mass) and the mass of coupled water is evaluated by combination of QCM-D and SPR data. It turns out that adsorption can be tuned over a wide range (0.6-3.9 mg dry mass m-2) depending on the used conditions for adsorption and the type of employed cationic cellulose. After evaluation of protein adsorption, patterned cellulose thin films have been prepared and the cationic celluloses were adsorbed in a similar fashion as in the QCM-D and SPR experiments. Onto these cationic surfaces, fluorescently labeled BSA in different concentrations is deposited by an automatized spotting apparatus and a correlation between the amount of the deposited protein and the fluorescence intensity is established.Source: Biomacromolecules. - ISSN 1525-7797 (11, 15, 2014, str. 3931-3941)Type of material - article, component partPublish date - 2014Language - englishCOBISS.SI-ID - 18098198
Author
Mohan, Tamilselvan |
Niegelhell, Katrin |
Salomão Pinto Zarth, Cínthia |
Kargl, Rupert |
Köstler, Stefan |
Ribitsch, Volker |
Heinze, Thomas |
Spirk, Stefan |
Stana-Kleinschek, Karin
Topics
celulozni filmi |
tanki filmi |
kationizacija |
QCM-D |
adsorpcija proteina |
površinska obdelava |
cellulose thin films |
cationic cellulose |
QCM-D |
protein adsorption
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Mohan, Tamilselvan | 33768 |
Niegelhell, Katrin | ![]() |
Salomão Pinto Zarth, Cínthia | ![]() |
Kargl, Rupert | 36303 |
Köstler, Stefan | ![]() |
Ribitsch, Volker | 15077 |
Heinze, Thomas | ![]() |
Spirk, Stefan | 34741 |
Stana-Kleinschek, Karin | 07814 |
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