Search for dissertations about: "surface modification"

Showing result 1 - 5 of 340 swedish dissertations containing the words surface modification.

  1. 1. Surface Modification of Biomedical Polyurethanes

    University dissertation from Center for Chemistry and Chemical Engineering

    Author : Christina Freij-Larsson; [1996]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; protein adsorption.; surface morphology; adsorption; polymer blends; polymer grafting; amphiphilic polymers; poly ethylene oxide ; Surface modification; polyurethane; Polymer technology; biopolymers; Polymerteknik;

    Abstract : The aim of the this thesis was surface modification of a biomedical polyurethane (PUR), Pellethane 2363-80AE*, to improve the biocompatibility. Surfaces modified by poly(ethylene oxide) (PEO) were prepared either by grafting PEO covalently at the PUR surface by a two-step reaction, or by using amphiphilic polymers containing PEO as the hydrophilic part. READ MORE

  2. 2. Nanocellulose for Biomedical Applications Modification, Characterisation and Biocompatibility Studies

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Kai Hua; Uppsala universitet.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanocellulose; nanofibrillated cellulose; Cladophora cellulose; biocompatibility; inflammation; surface modification; surface group density; surface topography; Teknisk fysik med inriktning mot nanoteknologi och funktionella material; Engineering Science with specialization in Nanotechnology and Functional Materials;

    Abstract : In the past decade there has been increasing interest in exploring the use of nanocellulose in medicine. However, the influence of the physicochemical properties of nanocellulose on the material´s biocompatibility has not been fully investigated. READ MORE

  3. 3. Effect of surface chemistry on wetting properties of lignocellulosic fibers

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Max Östenson; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lignocellulosic fibers; ESCA XPS; tagging; surface chemistry; contact angle; surface modification;

    Abstract : .... READ MORE

  4. 4. Surface Modification of Cellulose by Covalent Grafting and Physical Adsorption

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Linn Carlsson; KTH.; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Surface modification; cellulose; covalent modification; physical adsorption; polymer synthesis;

    Abstract : The interest in new environmentally friendly cellulose‐based productshas increased tremendously over the last years. At the same time theSwedish forest industry faces new challenges in its strive to increase the utilization of cellulose fibers in high‐value end‐products. READ MORE

  5. 5. From Macro to Nano Electrokinetic Transport and Surface Control

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Gaspard Pardon; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; microsystem; nanosystem; microfluidic; nanofluidic; surface modification; surface property; electrokinetics; model; simulation; material; polymer; thiol-ene; microfabrication; nanofabrication; micromanufacturing; nanomanufacturing; breath sampling; aerosol precipitation; corona discharge; electrostatic precipitation; grafting chemistry; click chemistry; nanopore; nanoporous membrane; photolithography; photopatterning; photografting; microfluidics; nanofluidics; oste; OSTE ; OSTEmer; lab-on-chip; loc; point-of-care; poc; biocompatibility; diagnostics; breath analysis; fuel cell; Electrical Engineering; Elektro- och systemteknik; Materials Science and Engineering; Teknisk materialvetenskap; Physics; Fysik; Medicinsk teknologi; Medical Technology;

    Abstract : Today, the growing and aging population, and the rise of new global threats on human health puts an increasing demand on the healthcare system and calls for preventive actions. To make existing medical treatments more efficient and widely accessible and to prevent the emergence of new threats such as drug-resistant bacteria, improved diagnostic technologies are needed. READ MORE