Blar i NTNU Open på forfatter "Syverud, Kristin"
-
Biomimetic Highly Porous Nanocellulose-Nanohydroxyapatite Scaffolds for Bone Tissue Engineering
Korkeamäki, Jannika Timontytär; Rashad, Ahmad; Berstad, Kaia; Weber, Florian; Syverud, Kristin; Haugen, Håvard Jostein; Mustafa, Kamal Babikeir Elnour (Peer reviewed; Journal article, 2024)Wood-derived TEMPO-oxidized cellulose nanofibrils (CNFs) have potential as scaffolding for bone tissue engineering. Although biocompatible, the material lacks osteoconductive and appropriate mechanical properties. Incorporation ... -
Cellulose Nanofibrils as Paper Additive and Coating Material: Properties, Distribution and Interaction Effects
Ottesen, Vegar (Doctoral theses at NTNU;2018:115, Doctoral thesis, 2018)Cellulose is well-known as the most common bio-polymer on earth. In the cell wall of most plants, it is organized in nanoscopic structures with interesting properties for a wide range of applications, among them as an ... -
Cellulose nanofibrils as rheology modifier in mayonnaise – A pilot scale demonstration
Heggset, Ellinor Bævre; Aaen, Ragnhild; Veslum, Trinelise; Henriksson, Marielle; Simon, Sebastien Charles; Syverud, Kristin (Peer reviewed; Journal article, 2020)The applicability of cellulose nanofibrils (CNFs) as viscosifying agent in a starch-reduced low-fat mayonnaise and in an oil-reduced full-fat mayonnaise has been considered. For low-fat mayonnaise a 50 wt% reduction in the ... -
Cellulose nanofibrils as rheology modifiers and stabilizers in food systems
Aaen, Ragnhild (Doctoral theses at NTNU;2020:291, Doctoral thesis, 2020)Food additives are components used in many food products to improve qualities such as flavor, appearance or texture. In low-fat and non-fat food products, food additives called fat-replacers are added to the food products ... -
Coatability of cellulose nanofibril suspensions: Role of rheology and water retention
Kumar, Vinay; Ottesen, Vegar; Syverud, Kristin; Gregersen, Øyvind Weiby; Toivakka, Martti (Journal article; Peer reviewed, 2017)Cellulose nanofibril (CNF) suspensions are not easily coatable because of their excessively high viscosity and yield stress, even at low solids concentrations. In addition, CNF suspensions vary widely in their properties ... -
Coating 3D Printed Polycaprolactone Scaffolds with Nanocellulose Promotes Growth and Differentiation of Mesenchymal Stem Cells
Elsebahy, Ahmad Rashad Saad Mohamed; Mohamed-Ahmed, Samih; Ojansivu, Miina; Berstad, Kaia; Yassin, Mohammed Ahmed; Kivijärvi, Tove; Heggset, Ellinor Bævre; Syverud, Kristin; Mustafa, Kamal Babikeir Eln (Journal article; Peer reviewed, 2018)3D printed polycaprolactone (PCL) has potential as a scaffold for bone tissue engineering, but the hydrophobic surface may hinder optimal cell responses. The surface properties can be improved by coating the scaffold with ... -
Construction of Nanocellulose Microcapsules for Research and Sensor Applications
Tonstad, Sandra Karen (Master thesis, 2018)Nanocellulose microcapsules with internal hollows have previously been found to form when cellulose nanofibrils (CNF) are added to paper pulp before drying. In an effort to study such capsules removed from the paper matrix, ... -
A core flood and microfluidics investigation of nanocellulose as a chemical additive to water flooding for EOR
Aadland, Reidun Cecilie Grønfur; Akarri, Salem Saeed Fadhl; Heggset, Ellinor Bævre; Syverud, Kristin; Torsæter, Ole (Peer reviewed; Journal article, 2020)Cellulose nanocrystals (CNCs) and 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-oxidized cellulose nanofibrils (T-CNFs) were tested as enhanced oil recovery (EOR) agents through core floods and microfluidic experiments. ... -
Cross-linking oxidized cellulose nanofibrils for the formation of stable hydrogel structures
Pettersen, Sigurd Rolland (Master thesis, 2013)The main goal of this project was to investigate whether the elastic properties of microfibrillated cellulose (MFC) suspensions pre-treated by TEMPO-mediated oxidation could be controlled by inducing cross-links between ... -
Cytocompatibility and Functionalization of Nanocellulose for Bone Tissue Engineering Applications
Grøndahl, Martha (Master thesis, 2019)I denne masteroppgaven er overflateegenskaper til nanocellulosegeler som armering (scaffold) innenfor benvevsregenererings (BVR) applikasjoner utforsket. Nanocellulose er et materiale av stor interesse innenfor mange ... -
Development and exploration of nanocelluloses from Laminaria hyperborea (Lh)
Bringedal, Linn Margrethe (Master thesis, 2021)Formålet med denne oppgaven var å raffinere cellulose og fremstille nanocelluloser fra taren Laminaria hyperborea. Metodene som ble valgt i studien er raffinering med natrium hydroksid for fremstilling av ren cellulose, ... -
Development of Kraft Lignin and Coating Technique to Prepare Coated Urea Fertilizers with Increased Nutrient Use Efficiency
Xu, Xueyan (Master thesis, 2017)Coating urea to prepare controlled release N-fertilizer has been considered as an effective way to increase its nutrient use efficiency, thus reduce its waste and the consequent harmful environmental impacts. Inorganic ... -
Experimental Study of Flow of Nanocellulose in Porous Media for Enhanced Oil Recovery Application
Aadland, Reidun Cecilie Grønfur (Doctoral theses at NTNU;2019:339, Doctoral thesis, 2019) -
Fundamental properties of nanocelluloses, and teir application in membranes for CO2 Separation
Torstensen, Jonathan Økland (Doctoral theses at NTNU;2019:146, Doctoral thesis, 2019) -
High-Temperature Core Flood Investigation of Nanocellulose as a Green Additive for Enhanced Oil Recovery
Aadland, Reidun Cecilie Grønfur; Jakobsen, Trygve Dagsloth; Heggset, Ellinor Bævre; Long-Sanouiller, Haili; Simon, Sebastien Charles; Paso, Kristofer Gunnar; Syverud, Kristin; Torsæter, Ole (Journal article; Peer reviewed, 2019)Recent studies have discovered a substantial viscosity increase of aqueous cellulose nanocrystal (CNC) dispersions upon heat aging at temperatures above 90 °C. This distinct change in material properties at very low ... -
Hydrophobisation of lignocellulosic materials part I: physical modification
Rodriguez Fabia, Sandra; Torstensen, Jonathan Økland; Johansson, Lars; Syverud, Kristin (Peer reviewed; Journal article, 2022)This review is the first part of a comprehensive review of hydrophobisation of lignocellulosic materials. The purpose of this review has been to compare physical hydrophobisation methods of lignocellulosic materials. We ... -
Hydrophobization of lignocellulosic materials part II: chemical modification.
Rodriguez Fabia, Sandra; Torstensen, Jonathan Økland; Johansson, Lars; Syverud, Kristin (Peer reviewed; Journal article, 2022)Lignocellulosic materials with hydrophobic properties are of great interest for developing sustainable products that can be used in various applications such as packaging, water-repellent and self-cleaning materials, oil ... -
Hydrophobization of lignocellulosic materials part III: modification with polymers
Rodriguez Fabia, Sandra; Torstensen, Jonathan Økland; Johansson, Lars; Syverud, Kristin (Journal article; Peer reviewed, 2022) -
Identification of Nanocellulose Retention Characteristics in Porous Media
Aadland, Reidun Cecilie Grønfur; Dziuba, Carter Jordan; Heggset, Ellinor Bævre; Syverud, Kristin; Torsæter, Ole; Holt, Torleif; Gates, Ian D.; Bryant, Steven (Journal article; Peer reviewed, 2018)The application of nanotechnology to the petroleum industry has sparked recent interest in increasing oil recovery, while reducing environmental impact. Nanocellulose is an emerging nanoparticle that is derived from trees ... -
Inflammatory responses and tissue reactions to wood-Based nanocellulose scaffolds
Elsebahy, Ahmad Rashad Saad Mohamed; Suliman, Salwa; Mustafa, Manal; Pedersen, Torbjørn Østvik; Campodoni, Elisabetta; Sandri, Monica; Syverud, Kristin; Mustafa, Kamal Babikeir Eln (Peer reviewed; Journal article, 2019)Two wood-derived cellulose nanofibril (CNF) porous scaffolds were prepared by TEMPO-oxidation and carboxymethylation. The effects of these scaffolds on the production of inflammatory cytokines by human macrophage-like cells ...