Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Kristoffer Tømmeraas"'
Autor:
Aleksandra M. Kozlowski, Edwin A. Yates, Johannes P. Roubroeks, Kristoffer Tømmeraas, Flemming H. Larsen, Alan M. Smith, Gordon A. Morris
Publikováno v:
Carbohydrate Polymers. 308:120649
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62ec30d97a35d9294dcb141495081f97
https://doi.org/10.1016/j.carbpol.2023.120649
https://doi.org/10.1016/j.carbpol.2023.120649
Autor:
Alan M. Smith, Johannes P Roubroeks, Kristoffer Tømmeraas, Gordon A. Morris, Aleksandra Maria Kozlowski, Edwin A. Yates
Publikováno v:
ACS applied materialsinterfaces. 13(4)
Heparin is a complex glycosaminoglycan, derived mainly from pig mucosa, used therapeutically for its anticoagulant activity. Yet, owing largely to the chain complexity, the progressive effects of environmental conditions on heparin structure have not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84dd41d2bde0501f79dd5f6cc6cbef23
https://pubmed.ncbi.nlm.nih.gov/33471995
https://pubmed.ncbi.nlm.nih.gov/33471995
Publikováno v:
Carbohydrate Polymers. 85:173-179
Hyaluronic acid (HA) of various molecular weights (4000, 14,000, 30,000, 100,000 and 850,000 g/mol) was modified with aryl and alkenyl succinic anhydrides (ASA). The modifications were conducted at pH 8.0–8.5 for 16 h at 25 or 60 °C. The 1H NMR sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb354b35f259aebdd4681bcaa5410520
https://doi.org/10.1016/j.carbpol.2011.02.011
https://doi.org/10.1016/j.carbpol.2011.02.011
Publikováno v:
Carbohydrate Polymers. 83:1558-1564
Fully de-N-acetylated chito-oligomers were prepared by de-amination of chitosan using nitrous acid (HNO2). The dimer to hexamer fractions of chitosan oligomers were fractionated with preparative size-exclusion chromatography (SEC) and characterized u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a19a0db7a48351b2010d635140216e3c
https://doi.org/10.1016/j.carbpol.2010.10.008
https://doi.org/10.1016/j.carbpol.2010.10.008
Autor:
Claes Melander, Kristoffer Tømmeraas
Publikováno v:
Carbohydrate Polymers. 82:874-879
In this work, a novel procedure for hydrolysis of hyaluronic acid (HA) is presented. HA was hydrolysed in ethanol with added HCl during heterogeneous conditions using varying temperatures (40, 60 and 80 °C) and acid concentrations (0.01, 0.05, and 0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::990bc0109ea2fad6dab4ee67464dd965
https://doi.org/10.1016/j.carbpol.2010.06.010
https://doi.org/10.1016/j.carbpol.2010.06.010
Autor:
Maria Teresa Neves-Petersen, Kristoffer Tømmeraas, Khadija Schwach-Abdellaoui, Esben Skovsen, Søren Klitgaard, Steffen B. Petersen
Publikováno v:
Neves-Petersen, M T, Klitgaard, S, Skovsen, E, Petersen, S B, Tømmeraas, K & Schwach-Abdellaoui, K 2010, ' Biophysical properties of phenyl succinic acid derivatised hyaluronic acid ', Journal of Fluorescence, vol. 20, no. 2, pp. 483-92 . https://doi.org/10.1007/s10895-009-0570-z
Modification of hyaluronic acid (HA) with aryl succinic anhydrides results in new biomedical properties of HA as compared to non-modified HA, such as more efficient skin penetration, stronger binding to the skin, and the ability to blend with hydroph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f38075bfc934b5447fbad81b3a3c23f
https://doi.org/10.1007/s10895-009-0570-z
https://doi.org/10.1007/s10895-009-0570-z
Autor:
Per-Olof Wahlund, Kristoffer Tømmeraas
Publikováno v:
Carbohydrate Polymers. 77:194-200
In this study the poly-acid properties of biosynthetic hyaluronan produced by fermentation of Bacillus subtilis have been investigated. Potentiometric titration as well as 1H NMR titration have been used to determine the dissociation constants of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20df23b7103b46f92a801c5267b3d461
https://doi.org/10.1016/j.carbpol.2008.12.021
https://doi.org/10.1016/j.carbpol.2008.12.021
Autor:
Kristoffer Tømmeraas, Claes Melander
Publikováno v:
Carbohydrate Polymers. 74:745-748
Sodium hyaluronate (HA) of various molecular weights (MW) were prepared using acid hydrolysis, heat degradation, ultrasonic degradation, and irradiation on the same production batch. The molecular weights were determined using size exclusion chromato
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::862ff694e122af74c2cdc7f2c15fe6d9
https://doi.org/10.1016/j.carbpol.2008.04.001
https://doi.org/10.1016/j.carbpol.2008.04.001
Autor:
Per Artursson, Magnus Köping-Höggård, Bjørn E. Christensen, Kjell M. Vårum, Mohamed M. Issa, Kristoffer Tømmeraas, Sabina P. Strand
Publikováno v:
Journal of Controlled Release. 115:103-112
The aim of this study was to improve the gene delivery efficacy of chitosan oligomer polyplexes by introducing a trisaccharide branch that targets cell-surface lectins. For this purpose, chitosan oligomers were substituted by a trisaccharide with the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36746fa81ef4445e3c692d80b715ca72
https://doi.org/10.1016/j.jconrel.2006.06.029
https://doi.org/10.1016/j.jconrel.2006.06.029
Publikováno v:
Carbohydrate Polymers. 61:266-275
Different methods of isolating arabinoxylans from barley husks were compared and the effect of isolation method on yield, composition and physicochemical as well as material properties was investigated. The isolation involved HCl or enzyme pretreatme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::180e12326aa381b899d5fb6d8cf2b0c5
https://doi.org/10.1016/j.carbpol.2005.02.009
https://doi.org/10.1016/j.carbpol.2005.02.009