Search for dissertations about: "biopolymers"

Showing result 1 - 5 of 100 swedish dissertations containing the word biopolymers.

  1. 1. Adsorption of biopolymers and their layer-by-layer assemblies on hydrophilic surfaces

    University dissertation from Stockholm : KTH

    Author : Maria Lundin; KTH.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Layer-by-layer; multilayer; adsorption; biopolymers; Chitosan; Heparin; Mucin; Albumin; Lysozyme; β-casein; SDS; QCM-D; Ellipsometri; DPI; TIRF; FRET; SFA; layer structure; solvent content; vertical diffusion; exponential growth; solid-liquid interface; deposition conditions; NATURAL SCIENCES Chemistry Physical chemistry Surface and colloid chemistry; NATURVETENSKAP Kemi Fysikalisk kemi Yt- och kolloidkemi;

    Abstract : It is widely known that surfaces play an important role in numerous biological processes and technological applications. Thus, being able to modify surface properties provides an opportunity to control many phenomena occurring at interfaces. READ MORE

  2. 2. Free Volume Depth Profiling at Polymer Surfaces and Interfaces

    University dissertation from Birgitta Ryd, Polymer Science & Engineering, Center for Chemistry and Chemical Engineering, Lund

    Author : John Algers; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biopolymers; Polymerteknik; Polymer technology; polymer interfaces; polymer surfaces; positron lifetime; free volume;

    Abstract : Pulsed low energy positron beams provide a unique and non-destructive tool to depth probe the free volume of polymers at surfaces and interfaces. Since the employment of low energy positron beams in polymer research is an emerging technique, some focus in this thesis has been on extracting methods and equations needed to interpret the experimental data. READ MORE

  3. 3. Asymmetrical Flow Field-Flow Fractionation and Multiangle Light Scattering for Molar Mass Analysis of Polysaccharide Derivatives

    University dissertation from Mats Andersson, Technical Analytical Chemistry, Center for Chemistry and Chemical Engineering, Lund University, Lund, Sweden

    Author : Mats Andersson; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; polysaccharide derivatives ethylhydroxyethyl cellulose; molar mass analysis; asymmetrical flow field-flow fractionation; multiangle light scattering; polymer size distribution; Polymer technology; biopolymers; Polymerteknik;

    Abstract : Molar mass and molar mass distribution of polymers are parameters of fundamental importance as they influence the performance of the polymer in applications. Polysaccharide derivatives are a class of polymers that have attracted significant scientific and commercial interest as they can be manufactured from a wide range of abundant sources in nature and thereby often are both cheap and biocompatible. READ MORE

  4. 4. Oxidative Degradation of Polyethylene - A Cause of Off-flavour

    University dissertation from Thorbjörn Andersson, Tetra Pak R&D AB, SE- 22186 Lund, Sweden

    Author : Thorbjörn Andersson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biopolymers; Polymerteknik; Polymer technology; off-flavour; degradation; polyethylene;

    Abstract : Polyethylene is the most frequently used polymer material in food packaging today. The polymer is often processed by film extrusion and extrusion coating between 250°C and 325°C. READ MORE

  5. 5. Polymer Displacement and Supermacroporous Cryogels - Two New Tools in Chromatographic Separation of Biomolecules and Bioparticles

    University dissertation from Department of Biotechnology, Lund University

    Author : Pär Arvidsson; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biopolymers; Polymerteknik; Biochemical technology; Polymer technology; IMAC; dye-affinity; affinity chromatography; viable cells; cell chromatography; non-clarified cell homogenate; cryogel; Polymer displacement; supermacroporous; Biokemisk teknik;

    Abstract : Production of protein is often accompanied with difficulties due to the large amounts of different biological material resulting from fermentation. This makes purification necessary and affinity chromatography is usually involved as being biospecific, although suffering from limitations as low recovery due to ineffective elution and inability to handle particulate materials. READ MORE