Browsing NTNU Open by Author "Ucar, Seniz"
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A correlative spatiotemporal microscale study of calcium phosphate formation and transformation within an alginate hydrogel matrix.
Bassett, David; Ucar, Seniz; Sikorski, Pawel; Andreassen, Jens-Petter; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard (Journal article; Peer reviewed, 2016)The modification of soft hydrogels with hard inorganic components is a method used to form composite materials with application in non-load-bearing bone tissue engineering. The inclusion of an inorganic component may provide ... -
Bioinspired Coprecipitation of Magnetite Nanoparticles: Investigations of Particle Characteristics in Relation to Crystallization Pathways
Kristiansen, Andreas Bogen (Master thesis, 2021)Magnetiske nanopartikler er svært interessante for en rekke viktige bruksområder som datalagring, vannrensing og kreftbehandling. Grunnet høy metningsmagnetisering og biokompatibilitet er magnetitt det mest lovende materialet. ... -
Controlled mineralisation and recrystallisation of brushite within alginate hydrogels
Bjørnøy, Sindre Hove; Bassett, David; Ucar, Seniz; Sikorski, Pawel; Andreassen, Jens-Petter (Journal article; Peer reviewed, 2016-02)Due to high solubility and fast resorption behaviour under physiological conditions, brushite (CaHPO4⋅2H2O, calcium monohydrogen phosphate dihydrate, dicalcium phosphate dihydrate) has great potential in bone regeneration ... -
Corrosion and degradation in MEA based post-combustion CO2 capture
Fytianos, Georgios; Ucar, Seniz; Grimstvedt, Andreas Magnar; Hyldbakk, Astrid; Svendsen, Hallvard Fjøsne; Knuutila, Hanna K. (Journal article; Peer reviewed, 2016)Two of the main challenges in post-combustion CO2 capture with ethanolamine are solvent degradation and material corrosion. It has been shown that there is a correlation between degradation and corrosion. The present paper ... -
Corrosion Evaluation of MEA Solutions by SEM-EDS, ICP-MS and XRD
Fytianos, Georgios; Ucar, Seniz; Grimstvedt, Andreas Magnar; Svendsen, Hallvard Fjøsne; Knuutila, Hanna K. (Journal article; Peer reviewed, 2016)The target of this work is to evaluate three analytical techniques, ICP-MS, SEM-EDS and XRD, which can be applied in corrosion monitoring of ethanolamine based post-combustion CO2 capture plants. The work is based on ... -
Crystal Growth and Morphology Development from Aqueous Solutions
Wang, Lijuan (Doctoral theses at NTNU;2022:265, Doctoral thesis, 2022)Crystalline materials are found in a numerous variety of geometrical forms both in nature and when produced synthetically. As a result, pathways of crystal nucleation, growth and assembly into larger structures have evoked ... -
Crystallization kinetics and growth of struvite crystals by seawater versus magnesium chloride as magnesium source: Towards enhancing sustainability and economics of struvite crystallization
Shaddel, Sina; Grini, Tonje; Andreassen, Jens-Petter; Østerhus, Stein Wold; Ucar, Seniz (Peer reviewed; Journal article, 2020)The recycling of nutrients from wastewater and their recovery in the form of valuable products is an effective strategy to accelerate the circular economy concept. Phosphorus recovery from wastewater by struvite crystallization ... -
The Effect of Reaction Conditions and Presence of Magnesium on the Crystallization of Nickel Sulfate
Jenssen, Ina Beate; Bøckman, Oluf; Andreassen, Jens-Petter; Ucar, Seniz (Peer reviewed; Journal article, 2021)Recycling of valuable metals such as nickel is instrumental to meet the need from the dramatic increase in electric vehicle battery production and to improve its sustainability. Nickel required in the battery manufacture ... -
Effects of Supersaturation Build-Up on the Crystal Properties and Filtration Performance of an Aromatic Amine
Ådnebergli, Ida (Master thesis, 2021)Produksjonen av aktive farmasøytiske ingredienser i farmasøytisk industri oppnås ofte ved krystallisering og påfølgende filtreringsprosess, der filtreringsprosessen vanligvis blir ansett som den viktigste prosessflaskehalsen. ... -
Engineering of struvite crystals by regulating supersaturation – Correlation with phosphorus recovery, crystal morphology and process efficiency
Shaddel, Sina; Ucar, Seniz; Andreassen, Jens-Petter; Østerhus, Stein Wold (Journal article; Peer reviewed, 2019)Struvite crystallization is widely applied for nutrient recovery from wastewater streams. The better understanding of the effects of reaction conditions on final crystal properties will contribute to improve both the ... -
Enhancing efficiency and economy of phosphorus recovery process by customizing the product based on sidestream characteristics
Shaddel, Sina; Ucar, Seniz; Andreassen, Jens-Petter; Østerhus, Stein Wold (Journal article; Peer reviewed, 2019)The enhanced biological phosphorus removal process makes the phosphorus recovery feasible from the dewatering streams of biological sludge. The physicochemical properties of these sidestreams, as an input to a crystallizer, ... -
Fluoride Quantification and Removal from Industrial Process Streams
Sørmo, Eirik (Master thesis, 2021)Jern oxyhydroxide har blitt utfelt i en løsning sammen med fluorid i en Mixed-Suspension-Mixed-Product-Removal(MSMPR) Reaktor ved forskjellige temperaturer, oppholdstider og sulfat konsentrasjoner. Temperaturnivåene benyttet ... -
Formation of Hydroxyapatite via Transformation of Amorphous Calcium Phosphate in the Presence of Alginate Additives
Ucar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter (Journal article; Peer reviewed, 2019)Hydroxyapatite (HA) is the primary mineral of vertebral tooth and bone tissue; thus, it is often incorporated into synthetic composite materials designed for hard tissue engineering applications. Understanding the formation ... -
Gelling kinetics and in situ mineralization of alginate hydrogels: A correlative spatiotemporal characterization toolbox.
Åslund, Andreas; Bassett, David; Ucar, Seniz; Sikorski, Pawel; Andreassen, Jens-Petter; Mandaric, Stefan; Bjørnøy, Sindre Hove; Strand, Berit Løkensgard (Journal article; Peer reviewed, 2016)Due to their large water content and structural similarities to the extracellular matrix, hydrogels are an attractive class of material in the tissue engineering field. Polymers capable of ionotropic gelation are of special ... -
Investigations of Crystallization Conditions for Polymorph Control and Enhanced Production og an Aromatic Amine
Yndesdal, Elise (Master thesis, 2022)Ulike krystalliseringsforhold av et dimorft aromatisk amin ble undersøkt gjennom eksperimen- ter av podet batch avkjølingskrystallisering. Hensikten med arbeidet var å tilegne kunnskap om krystalliseringen og undersøke ... -
Nucleation and Growth of Brushite in the Presence of Alginate
Ucar, Seniz; Bjørnøy, Sindre Hove; Bassett, David; Strand, Berit Løkensgard; Sikorski, Pawel; Andreassen, Jens-Petter (Journal article, 2015)Biomineral formation in vivo is a complex process regulated by functional molecules. Highlighting the mechanisms underlying biomineralization is necessary for a better understanding of in vivo processes and for enhanced ... -
Precipitation of silver particles with controlled morphologies from aqueous solutions
Wang, Lijuan; Andreassen, Jens-Petter; Ucar, Seniz (Journal article; Peer reviewed, 2019)Synthesis of silver particles with controlled morphologies enables their use in a variety of applications. Although several synthetic approaches have been developed to successfully modify the final particle shape, the ... -
Predicting Silica Deposition from Superheated, Pressurized Steam Using Numerical Modeling of Nucleation, Agglomeration and Deposition
Bordvik, Silje; van Erp, Titus Sebastiaan; Ucar, Seniz; Næss, Erling (Peer reviewed; Journal article, 2023)A model that can be used to quantify silica deposition from superheated depressurized steam is developed. Classical nucleation theory, agglomeration and deposition onto a wall are combined in a numerical model that calculates ... -
Purification and impurity uptake of hydrated Nickel sulfate salts from aqueous solution with common process impurities
Storøy, Fredrik Skadsem (Master thesis, 2019)Nikkelsulfat salter er en av komponentene som brukes i katoden av moderne Lithium-ion batterier i elektriske biler. Batterigrad nikkelsulfat salter er rengjort og separert via krystallisasjon. Glencore Nikkelverk AS ... -
Removal of impurities from industrial hydrometallurgical processes by crystallization
Jenssen, Ina Beate (Doctoral theses at NTNU;2021:211, Doctoral thesis, 2021)Metals play a crucial role in our daily life, and are usually produced from raw materials coming from mineral ores, typically by hydrometallurgical processing. Hydrometallurgy is described as the use of aqueous media to ...