Blar i NTNU Open på forfatter "Hoff, Bård Helge"
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Effect of Auxiliary Donors on 3,8-Phenothiazine Dyes for Dye-Sensitized Solar Cells
Buene, Audun Formo; Christensen, Mats; Hoff, Bård Helge (Journal article; Peer reviewed, 2019)Phenothiazines are one of the more common dye scaffolds for dye-sensitized solar cells. However, these sensitizers are exclusively based on a 3,7-substitution pattern. Herein, we have synthesized and characterized novel ... -
Effect of furan π-spacer and triethylene oxide methyl ether substituents on performance of phenothiazine sensitizers in dye-sensitized solar cells
Buene, Audun Formo; Boholm, Nanna; Hagfeldt, Anders; Hoff, Bård Helge (Journal article; Peer reviewed, 2019)Conjugated π-spacers are used to improve the light harvesting properties of sensitizers for dye-sensitized solar cells. In several recent works, furan has outperformed other popular π-spacers such as thiophene and phenyl. ... -
Effect of Pyrene-Alkyne Donors and the Preparation of a Phenothiazine Literature Record Dye - Synthesis and Evaluation in DSSCs
Zakariassen, Ane Garborg (Master thesis, 2018)The desire to reduce CO2 emissions, combined with an increasing energy demand from the world's increasing population, calls for new environmentally clean energy resources. Solar energy stands out as one of the most viable ... -
Effect of seven different terthiophene π-spacers on dye performance in dye-sensitized solar cells
Almenningen, David Moe; Hansen, Henrik Erring; Buene, Audun Formo; Hoff, Bård Helge; Gautun, Odd Reidar (Journal article; Peer reviewed, 2022)To ensure high photocurrents from dye-sensitized solar cells (DSSC), it is important that the dye absorbs as much of the energy from the sunlight as possible. To achieve a wide absorption and cover larger parts of the solar ... -
Effect of thiophene-based π-spacers on N-arylphenothiazine dyes for dye-sensitized solar cells
Almenningen, David Moe; Hansen, Henrik Erring; Vold, Martin Furru; Buene, Audun Formo; Venkatraman, Vishwesh; Sunde, Svein; Hoff, Bård Helge; Gautun, Odd Reidar (Peer reviewed; Journal article, 2021)To study the effect of π-spacers on dye performance in DSSC, five novel phenothiazine dyes have been prepared where the number of successive thiophenes in the π-spacer was increased from zero to four. Additionally, a dye ... -
Effect of π-linkers on phenothiazine sensitizers for dye-sensitized solar cells
Buene, Audun Formo; Uggerud, Nora; Economopoulos, Solon; Gautun, Odd Reidar; Hoff, Bård Helge (Journal article; Peer reviewed, 2018)Eleven new dyes have been synthesized in order to investigate the effect of five different π-spacers and two different auxiliary donors in phenothiazine-based sensitizers for dye-sensitized solar cells. The target molecules ... -
Enantioselectivity, swelling and stability of 4-hydroxyprolinol containing acrylic polymer beads in the asymmetric reduction of ketones
Thvedt, Thor Håkon Krane; Kristensen, Tor Erik Holt; Sundby, Eirik; Hansen, Tore; Hoff, Bård Helge (Journal article; Peer reviewed, 2011)A new 4-hydroxy-a,a-diphenyl-L-prolinol containing polymethacrylate, prepared without chromatography by a large scale adaptable synthesis, has been evaluated as a catalyst in the asymmetric reduction of 1-arylethanones. ... -
Er fullstendig selektiv inhibering av CLK1 en mulighet?
Lokøy, Renate (Bachelor thesis, 2021)Cdc2-like kinase 1 (CLK1) er en proteinkinase som er involvert i pre-mRNA spleising. Den er sammenkoblet med flere sykdommer. Derfor er inhibering av CLK1 er et svært aktuelt tema, da dette kan forhindre flere lidelser. ... -
Escape from the Flatland: Synthesis of Tetrahydropyran Substituted Pyrrolopyrimidines as CSF-1R Inhibitors
Havik, Simen (Master thesis, 2021)Overekspresjon av den kolonistimulerende faktor 1-reseptoren, CSF-1R har blitt implisert i mange sykdomsforløp som for eksempel kreftdannelse og beinlidelser. CSF-1R kinasen har derfor vært et viktig mål for behandling av ... -
Evaluation of protective groups for purines in synthesis of CSF1R inhibitors
Bygdås, Håkon Steinholt (Master thesis, 2019)Kolonistimmulerende faktor 1 (CSF1) er ofte overuttrykt i flere typer kreft, betennelsessykdommer og beinsykdommer. Studier har vist at hemning av den kolonistimmulerende faktor 1 reseptor kinasen (CSF1R) kan gi økt effekt ... -
First Report of Chenodeoxycholic Acid–Substituted Dyes Improving the Dye Monolayer Quality in Dye-Sensitized Solar Cells
Buene, Audun Formo; Almenningen, David Moe; Hagfeldt, Anders; Gautun, Odd Reidar; Hoff, Bård Helge (Journal article, 2020)Chenodeoxycholic acid (CDCA) is the most used anti-aggregation additive in dye-sensitized solar cells since its introduction to the field in 1993. However, effective suppression of dye aggregation comes at the cost of ... -
Fragment Based Approach in the Search for New Kinase Inhibitors
Moen, Ingri Ullestad (Master thesis, 2014)This master's thesis have been performed in cooperation with a larger researchgroup, as part of an ongoing study. The group is engaged in developing biologicallyactive compounds with potency of inhibiting epidermal growth ... -
Fremstilling av kirale stoffer mot humane sopp-plager
Kaasa, Kristin (Master thesis, 2011)En serie med sju enantiomert rene Butenafine-derivater, 1a-g, ble fremstilt.Forbindelsene 1a-f ble fremstilt fra det sekundære metylaminet 2 og forskjelligebenzylhalider, 5a-f. Benzylhalidene 5a-f var substituert på ... -
Fremstilling og karakterisering av potensielle virkestoffer mot sopp og protozoer
Elgen, Marianne (Master thesis, 2008)Det er syntetisert fire potensielle virkestoffer mot sopp. To av disse er fluorerte forbindelser. -
Gold(III) Complexes: Ligand Design and Catalytic Properties
Reiersølmoen, Ann Christin (Doctoral theses at NTNU;2020:264, Doctoral thesis, 2020)Gold catalysis has become one of the fastest growing fields in organic chemistry, providing new transformations and offering excellent chemoselectivities at mild reaction conditions. So far, the main focus within Au(III) ... -
Halogenated Pyrrolopyrimidines with Low MIC on Staphylococcus aureus and Synergistic Effects with an Antimicrobial Peptide
Olsen, Cecilie Elisabeth; Blindheim, Fredrik Heen; Søgaard, Caroline Krogh; Røst, Lise Marie; Singleton, Amanda; Bergum, Olaug Elisabeth Torheim; Bruheim, Per; Otterlei, Marit; Sundby, Eirik; Hoff, Bård Helge (Peer reviewed; Journal article, 2022)Currently, there is a world-wide rise in antibiotic resistance causing burdens to individuals and public healthcare systems. At the same time drug development is lagging behind. Therefore, finding new ways of treating ... -
The Heck reaction for synthesis of novel kinase inhibitors.
Willumsen, Fredrik Bysting (Master thesis, 2015)Reaction conditions were investigated and developed for coupling of acrylates with different properties. A total of seven acrylic thienopyrimidines were synthesized, five of which were synthesized directly with the Heck ... -
A highly selective purine-based inhibitor of CSF1R potently inhibits osteoclast differentiation
Aarhus, Thomas Ihle; Eickhoff, Jan; Klebl, Bert; Unger, Anke; Boros, Johanna; Choidas, Axel; Zischinsky, Mia-Lisa; Wolowczyk, Camilla Izabel; Bjørkøy, Geir; Sundby, Eirik; Hoff, Bård Helge (Peer reviewed; Journal article, 2023)The colony-stimulating factor 1 receptor (CSF1R) plays an important role in the regulation of many inflammatory processes, and overexpression of the kinase is implicated in several disease states. Identifying selective, ... -
Hot-water Extraction of Hemicelluloses by Microwave Heating: A Study of Sugarcane Bagasse and Sawmill Shavings of Norway Spruce and Scots Pine as Raw Materials for Hemicellulose Extraction
Gulbrandsen, Tore Aarhus (Master thesis, 2012)In light of the increasing focus on sustainability and bio-mass as feedstock for energy and chemicals, extraction of hemicelluloses from different kinds of lignocellulosic materials has received much attention. This thesis ... -
Identification of fused pyrimidines as interleukin 17 secretion inhibitors
Reiersølmoen, Ann Christin; Han, Jin; Sundby, Eirik; Hoff, Bård Helge (Journal article; Peer reviewed, 2018)Inhibiting the interleukin 17 pathway is of interest in a number of autoimmune diseases. Herein, 42 fused pyrimidines have been evaluated as interleukin 17 secretion inhibitors using a phenotypic assay with peripheral ...