Blar i NTNU Open på forfatter "Ulset, Ann-Sissel Teialeret"
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Conformation of carboxylated schizophyllan in aqueous solution
Yoshiba, Kazuto; Sato, Takahiro; Osumi, Takaaki; Ulset, Ann-Sissel Teialeret; Christensen, Bjørn E. (Journal article; Peer reviewed, 2015)Carboxylated schizophyllan (sclerox) samples of different degrees of oxidation were molecularly characterized by size exclusion chromatography equipped with a multi-angle light scattering detector (SEC-MALS) in 0.10 M ... -
Cooperative Order−Disorder Transition of Carboxylated Schizophyllan in Water−Dimethylsulfoxide Mixtures
Yoshiba, Kazuto; Dobashi, Toshiaki; Ulset, Ann-Sissel Teialeret; Christensen, Bjørn E. (Journal article; Peer reviewed, 2018)Carboxylated schizophyllan (“sclerox”) is a chemically modified polysaccharide obtained by partial periodate oxidation and subsequent chlorite oxidation of schizophyllan, a water-soluble neutral polysaccharide having a ... -
Degradation kinetics of peptide-coupled alginates prepared via the periodate oxidation reductive amination route
Dalheim, Marianne Øksnes; Ulset, Ann-Sissel Teialeret; Jenssen, Ina Beate; Christensen, Bjørn E. (Journal article; Peer reviewed, 2017)Biomaterials based on peptide-coupled alginates must provide both optimal biological environments and tuneable stability/degradation profiles. The present work investigates the degradation pattern and kinetics of peptide-coupled ... -
Effects of physical and chemical treatments on the molecular weight and degradation of alginate-hydroxyapatite composites
Cardoso, DA; Ulset, Ann-Sissel Teialeret; Bender, Johan; Jansen, John A; Christensen, Bjørn E.; Leeuwenburgh, Sander (Journal article; Peer reviewed, 2014)Degradation of alginate remains a critical issue to allow predictable biological performance upon implantation of alginate-based materials. Therefore, the objective of the current study is to compare the effects of ... -
Graphene oxide in zinc alginate films: Antibacterial activity, cytotoxicity, zinc release, water sorption/diffusion, wettability and opacity
Frigols, Belen; Marti, Miguel; Salesa, Beatriz; Hernandez-Oliver, Carolina; Aarstad, Olav Andreas; Ulset, Ann-Sissel Teialeret; Sætrom, Gerd Inger; Aachmann, Finn Lillelund; Serrano-Aroca, Angel (Peer reviewed; Journal article, 2019)Alginate is considered an exceptional biomaterial due to its hydrophilicity, biocompatibility, biodegradability, nontoxicity and low-cost in comparison with other biopolymers. We have recently demonstrated that the ... -
Influence of amino acids, buffers, and pH on the γ-irradiation-induced degradation of alginates
Ulset, Ann-Sissel Teialeret; Mori, Hideki; Dalheim, Marianne Øksnes; Hara, Masayuki; Christensen, Bjørn E. (Journal article; Peer reviewed, 2014)Alginate-based biomaterials and medical devices are commonly subjected to γ-irradiation as a means of sterilization, either in the dry state or the gel (hydrated) state. In this process the alginate chains degrade randomly ... -
Macromolecular acidic coating increases shelf life by inhibition of bacterial growth
Christensen, Bjørn E.; Strand, Sabina P.; Basset, Coraline; Kristiansen, Kåre Andre; Ulset, Ann-Sissel Teialeret; Ballance, Simon; Granum, Per Einar (Journal article; Peer reviewed, 2018)The sensitivity of microorganisms to low pH can be utilized in food protection by preparing coatings based on macromolecular acids. Due to limited diffusivity of macromolecules low pH occurs primarily at the surface, while ... -
Sterilization effects on the handling and degradation properties of calcium phosphate cements containing poly (D,L-lactic-co-glycolic acid) porogens and carboxymethyl cellulose
Kucko, Nathan W.; Li, Wenliang; Martinez, Marcela A. Garcia; Rehman, Ihtesham ur; Ulset, Ann-Sissel Teialeret; Christensen, Bjørn E.; Leeuwenburgh, Sander C.G.; Herber, Ralf-Peter (Peer reviewed; Journal article, 2019)Injectable, self‐setting calcium phosphate cements (CPCs) are synthetic bone substitutes considered favorable for the repair and regeneration of bone due to their osteocompatibility and unique handling properties. However, ...