![]() ![]() This knowledge allows drawing conclusion about the biocompatibility ( Wang et al., 2013), coagulative properties ( Vikinge et al., 2000), or separation performance ( Zou et al., 2001) and finally determines their applicability. For most of these applications knowledge on the interaction of blood, plasma, or serum proteins with the surfaces of materials is important. Applications for such materials are, among others, bio-separation techniques ( Jungbauer, 2005) such as dialysis ( Roumelioti et al., 2018), affinity chromatography ( Burnouf and Radosevich, 2001), and electrophoresis ( Rocco, 2005). Synthetic and bio-based polymeric biomaterials are widely used for biomedical devices including those which are in contact with human blood, plasma, serum, or protein solutions. It is proposed that the observed effects can be exploited in biomaterial science and that they can be used to extent the applicability of bio-based polymer thin films composed of commercial cellulose derivatives. The amount of deposited proteins could be influenced by the composition of the films. Analysis of the mass of bound proteins was conducted by applying the Voigt model and a comparison was made with the Sauerbrey wet mass of the proteins for all films. Extended protein adsorption studies were performed by a QCM-D with 0.1 and 10 mg mL −1 bovine serum albumin (BSA) and 0.1 and 1 mg mL −1 fibrinogen from bovine plasma in phosphate buffered saline. The surfaces of mono- and bi-component films were also analyzed by atomic force microscopy (AFM) and large differences in the morphologies were found comprising nano- to micrometer sized pores. Depending on the composition and derivative, hydrophilicity can be varied resulting in materials with different surface properties. This work describes the preparation of spin-coated thin polymer films composed of cellulose (CE), ethyl cellulose (EC), and cellulose acetate (CA) in the form of bi- or mono-component coatings on sensors of a quartz crystal microbalance with dissipation monitoring (QCM-D). 4Faculty of Technical Chemistry, Chemical and Process Engineering, Biotechnology, Institute of Inorganic Chemistry, Graz University of Technology, Graz, Austria.3Department of Surface Engineering and Optoelectronics, Jožef Stefan Institute, Ljubljana, Slovenia.2Faculty of Technical Chemistry, Chemical and Process Engineering, Biotechnology, Institute of Paper, Pulp and Fibre Technology (IPZ), Graz University of Technology, Graz, Austria.1Laboratory for Characterization and Processing of Polymers, Faculty of Mechanical Engineering, University of Maribor, Maribor, Slovenia.If you want to be informed about promotions, new releases, or blog posts on specific topics (Excel, Word, AMS, self-publishing, finances, or writing in general), subscribe to my mailing list.Rupert Kargl 1,2 *, Matej Bračič 1, Matic Resnik 3, Miran Mozetič 3, Wolfgang Bauer 2, Karin Stana Kleinschek 1,4 and Tamilselvan Mohan 1 But since I’m fixing that error in this round and will probably do a bridging video for the video course folks, I did want to mention it as soon as I realized it. At least no one has yelled at me about it yet. I don’t think it materially impacted anyone’s ability to use the program. They changed that in 2.0 which made me have a lightbulb moment and realize that they have always been called panels and are considered components of a studio not the studio itself. My confusion came from the fact that they were all, in the original Affinity, listed under a Studio secondary dropdown menu. I thought all the little dockable task panes they have were what they called studios. In the process of doing that, I realized I made a terminology mistake in the first books. As I mentioned, they moved things around and also changed the appearance of a few key things. So, anyway, this week I was trying to figure out my next project and I thought I would tackle updating my Affinity books for Affinity 2.0 while I do so. I may have mentioned before that I am not perfect? And that I figure things out but only to the point that I can do them without a lot of wasted time?
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