Blar i Department of Chemistry på tittel
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Characterization of bioactive natural products from edible, medicinal and toxic plants
(Doctoral thesis, 2017-12-15)Research performed during work on this thesis has focused on isolation, structure elucidation and biological activity of natural products. Seven plant species have been examined, namely Bromelia laciniosa Mart. ex Schult ... -
Characterization of complex solutions using relaxation- and diffusion weighted NMR Spectroscopy.
(Master thesis, 2017-08-02)The need for a sustainable replacement to the conventional fossil fuels is required. Biooils is a potential replacement. The biooil analyzed in this thesis is made from lignin, which is a by-product of paper production. ... -
Characterization of high value products in the side-stream of Laminaria hyperborea alginate production - Targeting the phenolic content
(Journal article; Peer reviewed, 2023)Sustainable production based on renewable biomass and efficient bioprocesses are important elements in the growing blue bioeconomy. The traditional Laminaria hyperborea alginate production disposes approximately 80 % of ... -
Characterization of Linked Polymer Solutions (LPS) – Influence of salinity and divalent ions
(Master thesis, 2011-05-31)Water flooding with addition of polymers cross-linked by polyvalent ions (LPS) has proven to increase the oil recovery both in field applications and laboratory studies, but with constraints on the brine salinity. With of ... -
Characterization of Polyphenolic Content in the Aquatic Plants Ruppia cirrhosa and Ruppia maritima —A Source of Nutritional Natural Products
(Peer reviewed; Journal article, 2018)Herein, the polyphenolic content in extracts of Ruppia cirrhosa (Petagna) Grande and Ruppia maritima L.was fully characterized for the first time. High amounts of the main compound chicoric acid (CA) (≤30.2 ± 4.3 mg/g) ... -
Characterizing mass transport in hydrogels using Nuclear Magnetic Resonance
(Doctoral thesis, 2019-11-08)During the past decades, drug delivery system has become an important research topic in the pharmaceutical field. Conventionally, the therapeutic concentration of a drug in the blood is achieved by repeated administration ... -
Characterizing Triacylglycerol in Cell Culture: Can LCMS replace HPTLC when assessing the effect of metformin in salmon in-vitro fatty liver model?
(Master thesis, 2017-10-25)Fatty liver, a health complication for aquacultured fish is developed by the deposition of triacylglycerol (TAG) within liver cells. Metformin has been proven to be an effective drug for ameliorating fatty liver in human ... -
Chemical Insights from Carbon 1s Photoelectron Spectroscopy and Theoretical Modeling
(Doctoral thesis, 2007-08-31)Inner-shell ionization energies provide local probes of the charge distribution in molecules and of the ability of a molecule to accept charge at specific sites. As such, core-ionization energies are related to and may ... -
Chemical Properties of Alkenes and Alkynes from Carbon 1s Photoelectron Spectroscopy and Theory
(Doctoral thesis, 2013-02-27)The field of electron spectroscopy has evolved extensively the last couple of decades. On one hand, the technology at the synchrotron radiation facilities and of electron analyzers has improved, providing experimental data ... -
Chemical reactivity of methylbenzenes from core-photoelectron spectroscopy and theory
(Master thesis, 2000) -
Chemical studies of cytotoxic natural products from toxic and edible plant sources
(Doctoral thesis, 2024-04-19)Denne doktorgradsavhandlingen fokuserer på isolering og identifikasjon av naturstoffer fra fire utvalgte planter, hvor den cytotoksiske aktiviteten til nyoppdagede og interessante naturstoffer ble testet på blodkreftceller ... -
Chemometric Approaches for the Validation and Optimization of a LC-MS/MS Method for the Analysis of Phenanthrene Metabolites in Atlantic Haddock Embryo
(Master thesis, 2023-04-27)The release of oil and petroleum products into the environment has long been a cause for concern due to its toxic effects on marine species. In particular, the Atlantic haddock has shown enhanced sensitivity towards the ... -
Chlorine as a substituent – from quantum chemistry and photoelectron spectroscopy
(Doctoral thesis, 2015-02-17)The role of chlorine as a substituent upon ionization, protonation and electrophilic addition of HCl has been studied by means of computational chemistry and photoelectron spectroscopy. Gas-phase carbon 1s photoelectron ... -
Chromatographic Fingerprinting and Quality Control of Herbal Medicines: Comparison of two officinal Chinese pharmacopoeia species of Dendrobii based on High-Performance Liquid Chromatography and Chemometric analysis
(Master thesis, 2013-08-29)The fingerprinting quantitative analysis combining similarity evaluation, Principal Component Analysis (PCA) and Partial Least Squares Discriminant Analysis (PLS-DA) is a valid method for classification of herbal medicine ... -
Chromatographic Fingerprinting of Chinese Grape Berries
(Master thesis, 2014-04-14)Chromatographic fingerprints from three varieties of grapes produced in China (Giant Rose, Red Globe and Summer Black), were obtained by gas chromatography coupled with mass spectrometry. These grapes were subjected to ... -
Clathrate hydrate formation in different chemical environments relevant to subsurface CO2 storage
(Master thesis, 2018-09-12)Storing of carbon dioxide (CO2) as hydrates in the formation of the subsurface permafrost and oceanic areas around the world is a new method of carbon capture and storage (CCS). Clathrate hydrates are solids consisting of ... -
Co-Exposure of Phenanthrene and the cyp-Inducer 3-Methylchrysene Leads to Altered Biotransformation and Increased Toxicity in Fish Egg and Larvae
(Journal article; Peer reviewed, 2023)Polycyclic aromatic hydrocarbons (PAHs) have frequently been suspected of governing crude oil toxicity because of similar morphological defects in fish. However, PAH concentrations are often not high enough to explain the ... -
Co-exposure to UV radiation and crude oil increases acute embryotoxicity and sublethal malformations in the early life stages of Atlantic haddock (Melanogrammus aeglefinus)
(Journal article; Peer reviewed, 2023)Crude oil causes severe abnormalities in developing fish. Photomodification of constituents in crude oil increases its toxicity several fold. We report on the effect of crude oil, in combination with ultraviolet (UV) ... -
Comparing the adsorption of methyl orange and malachite green on similar yet distinct polyamide microplastics: Uncovering hydrogen bond interactions
(Journal article; Peer reviewed, 2023)Microplastics (MPs) and dye pollutants are widespread in aquatic environments. Here, the adsorption characteristics of anionic dye methyl orange (MO) and cationic dye malachite green (MG) on polyamide 6 (PA6) and polyamide ... -
A comparison of analytical approaches to investigate associations for accelerometry-derived physical activity spectra with health and developmental outcomes in children
(Journal article; Peer reviewed, 2021)The use of high-resolution physical activity intensity spectra obtained from accelerometry can improve knowledge of associations with health and development beyond the use of traditional summary measures of intensity. The ...