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  • 301.
    Månsson, Margret
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Isaksson, Ingrid
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Certifiering.
    Rosell, Lars
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    TOXFIRE-Fire Characteristics and Smoke Gas Analysis in Under-ventilated Large-scale Combustion Experiments: Adsorbents and Soot Measurements2003Report (Other academic)
    Download full text (pdf)
    FULLTEXT01
  • 302.
    Månsson, Margret
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Lönnermark, Anders
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Blomqvist, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP Sveriges tekniska forskningsinstitut / Brandteknik, forskning (BRf ).
    Persson, Henry
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Brandteknik, skydd (BRs ).
    Babrauskas, Vytenis
    TOXFIRE - Fire characteristics and smoke gas analyses in under-ventilated large-scale combustion experiments1996Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 303.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    An analysis of the composition and metal contamination of plastics from waste electrical and electronic equipment2013In: Waste Management, ISSN 0956-053X, E-ISSN 1879-2456, Vol. 33, no 4, p. 915-922Article in journal (Refereed)
  • 304.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Correlation between colour and temperature of LDPE stretch film used in silage bales.1999Conference paper (Other academic)
  • 305.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Durability of Polymeric Materials for Solar Applications2005In: Solar Energy, Vol. 79, no 6, p. 618-623Article in journal (Refereed)
  • 306.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Measurement of Diffusion Coefficients2005Report (Refereed)
  • 307.
    Möller, Kenneth
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Qualification of polymeric components for use in PV modules2011In: SPIE - The International Society for Optical Engineering. Reliability of Photovoltaic Cells, Modules, Components, and Systems IV, 2011, , p. 81120BConference paper (Refereed)
  • 308.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Advanced procedure for the assessment of the life time of solar absorber coatings2004In: Solar Energy Materials and Solar Cells, Vol. 84, p. 275-289Article in journal (Other academic)
  • 309.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    Comparison between predicted and actually observed in-service degradation of a nickel pigmented anodized aluminium absorber coating for solar DHW systems2000In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 61, p. 223-238Article in journal (Other academic)
  • 310.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    Qualification test procedure for solar absorber surface durability2000In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 61, p. 255-275Article in journal (Other academic)
  • 311.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Qualification test procedure for solar absorber surface durability2000In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 61, no 3, p. 255-275Article in journal (Other academic)
  • 312.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    Round robin on accelerated life testing of solar absorber durability2000In: Solar Energy Materials and Solar Cells, ISSN 0927-0248, E-ISSN 1879-3398, Vol. 61, no 3, p. 239-253Article in journal (Other academic)
  • 313.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut.
    The applicability of accelerated life testing for assessment of service life of solar thermal components2004In: Solar Energy Materials and Solar Cells, Vol. 84, p. 255-274Article in journal (Refereed)
  • 314.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Gevert, Thomas
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Holmström, Arne
    Examination of low density polyethylene (LDPE) after 15 years in service as air and water vapour barrier2001In: Polymer degradation and stability, ISSN 0141-3910, E-ISSN 1873-2321, Vol. 73, no 1, p. 69-74Article in journal (Other academic)
  • 315.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Jansson, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Analysis of oxidative polymer degradation using 18O and TOF-SIMS spectrometry2002Conference paper (Other academic)
  • 316.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Jansson, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Sjövall, Peter
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Degradation of post-consumer polypropylene materials exposed to simulated recycling – mechanical properties2003In: Polymer Degradation and Stability, Vol. 82, p. 37-46Article in journal (Refereed)
  • 317.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Lausmaa, Jukka
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Funktionella material (KMf).
    Boldizar, Antal
    Processing and thermo-oxidative aging of high impact polystyrene containing flame retardant2000In: American Chemical Society Division of Polymeric Materials: Science and Engineering..ACS 220th meeting in Washington, D.C., 20-24 August, 2000, 2000, , p. 101Conference paper (Other academic)
  • 318.
    Möller, Kenneth
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Lyvén, Benny
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Oorganisk kemi (Kmoo).
    Chemical and topographical analyses of tooth surfaces after Carisolv treatment2002In: Journal of Dentistry, ISSN 0300-5712, E-ISSN 1879-176X, Vol. 30, no 2, p. 67-75Article in journal (Other academic)
  • 319.
    Nilsson, Elvan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Investigations of video tape and audio tape - mechanical and coating properties.1991Report (Refereed)
    Download full text (pdf)
    fulltext
  • 320.
    Nilsson, Fritjof
    et al.
    KTH Royal Institute of Technology, Sweden.
    Hallstensson, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Johansson, Kenth S.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Umar, Z.
    U.K. Materials Technology Research Institute, United Kingdom.
    Hedenqvist, Mikael Stefan
    KTH Royal Institute of Technology, Sweden.
    Predicting solubility and diffusivity of gases in polymers under high pressure: N2 in polycarbonate and poly(ether-ether-ketone)2013In: Industrial & Engineering Chemistry Research, ISSN 0888-5885, E-ISSN 1520-5045, Vol. 52, no 26, p. 8655-8663Article in journal (Refereed)
    Abstract [en]

    The aim of this study was to develop a model that predicts the gas solubility and the sorption and desorption kinetics in polymer granulates over large temperature and pressure intervals. Besides the part predicting the solubility and diffusivity, the model involves the simultaneous solution of the diffusion equation and the heat equation in three dimensions using a finite element method (FEM). When the temperature- and pressure-dependent solubility of a specific polymer/gas combination is not known, an improved version of the non-equilibrium lattice fluid model (NELF) is used to predict the solubility. The improvement of the NELF model includes the use of Hansen's solubility parameters, and it uses pressure-volume-temperature (PVT) data from two new empirical models, which accurately estimate polymer densities over a wide range of temperatures and pressures. The new solubility model predicted the solubility-pressure data of N2 in poly(ethyl methacrylate) and N 2 and CH4 in polycarbonate (PC) at pressures below 4.5 MPa, without using any adjustable interaction parameters. The model was used to predict the solubility of N2 in poly(ether-ether-ketone) (PEEK) and PC at a very high pressure (67 MPa). Experimental N2 solubility data were obtained with a specially built reactor yielding high pressure and temperature. For PEEK, it was possible to predict the very high pressure solubility using a gas-polymer interaction parameter obtained from data taken at low pressures. In addition, a new free-volume-based diffusivity model requiring no adjustable interaction parameters was developed, and it successfully predicted the desorption kinetics of N2 from PEEK and PC.

  • 321.
    Nilsson Påledal, Sören
    et al.
    Tekniska verken i Linköping AB, Sweden.
    Arrhenius, Karine
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Kemi.
    Moestedt, Jan
    Tekniska verken i Linköping AB, Sweden.
    Engelbrektsson, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Stensen, Katarina
    Tekniska verken i Linköping AB, Sweden.
    Characterisation and treatment of VOCs in process water from upgrading facilities for compressed biogas (CBG)2016In: Chemosphere, ISSN 0045-6535, E-ISSN 1879-1298, Vol. 145, p. 424-430Article in journal (Refereed)
    Abstract [en]

    Compression and upgrading of biogas to vehicle fuel generates process water, which to varying degrees contains volatile organic compounds (VOCs) originating from the biogas. The compostion of this process water has not yet been studied and scientifically published and there is currently an uncertainty regarding content of VOCs and how the process water should be managed to minimise the impact on health and the environment. The aim of the study was to give an overview about general levels of VOCs in the process water. Characterisation of process water from amine and water scrubbers at plants digesting waste, sewage sludge or agricultural residues showed that both the average concentration and composition of particular VOCs varied depending on the substrate used at the biogas plant, but the divergence was high and the differences for total concentrations from the different substrate groups were only significant for samples from plants using waste compared to residues from agriculture. The characterisation also showed that the content of VOCs varied greatly between different sampling points for same main substrate and between sampling occasions at the same sampling point, indicating that site-specific conditions are important for the results which also indicates that a number of analyses at different times are required in order to make an more exact characterisation with low uncertainty.Inhibition of VOCs in the anaerobic digestion (AD) process was studied in biomethane potential tests, but no inhibition was observed during addition of synthetic process water at concentrations of 11.6 mg and 238 mg VOC/L.

  • 322.
    Nordqvist, Petra
    et al.
    KTH Royal Institute of Technology, Sweden.
    Niklas, Nordgren
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. KTH Royal Institute of Technology, Sweden.
    Khabbaz, Farideh
    AkzoNobel, Sweden.
    Malmström, Eva
    KTH Royal Institute of Technology, Sweden.
    Plant proteins as wood adhesives: Bonding performance at the macro- and nanoscale2013In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 44, p. 246-252Article in journal (Refereed)
    Abstract [en]

    Soy protein isolate and wheat gluten were studied to evaluate their wood bonding performance. A multiscale approach was employed, combining tensile shear strength measurements, optical microscopy, and adhesion measurements at the nanoscale using atomic force microscopy. Tensile shear strength measurements were performed on beech wood substrates bonded with either dispersions of soy protein isolate or wheat gluten to investigate bond strength and water resistance. The results reveal a significant difference in bond strength between the plant proteins. Soy protein isolate is superior to wheat gluten, especially regarding water resistance, both under acidic and alkaline conditions. Cross sections of the wood substrates were examined by optical microscopy to study protein penetration and bond line thickness. The results indicate that a proper bond can be obtained using lower amount of soy protein isolate than wheat gluten. Atomic force microscopy in colloidal probe mode was used to investigate nanoscale adhesion between cellulose and solvent cast protein films. The results show that adhesion between the plant proteins and the wood component is important for the bonding performance. Further, it is shown that the results from atomic force microscopy and tensile shear strength measurements display the same trend demonstrating that the bonding properties translates well spanning regimes from the macro- to the nanoscale. The presented multiscale approach is shown to have great potential and may be used in the future to predict properties at different length scales in the design and formulation of new bioadhesives. 

  • 323.
    Nuzzo, Marine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Sloth, Jakob
    GEA Process Engineering A/S, Denmark.
    Bergenståhl, Björn
    Lund University, Sweden.
    Surface Composition and Morphology of Particles Dried Individually and by Spray Drying2015In: Drying Technology, ISSN 0737-3937, E-ISSN 1532-2300, Vol. 33, no 6, p. 757-767Article in journal (Refereed)
    Abstract [en]

    This study investigates how the morphology of spray-dried particles is related to the formulation and properties of the components in the formulation. Further, the scale effects in comparisons of levitation-dried single particles and spray-dried particles in a lab-scale spray dryer have been addressed. The Drying Kinetics AnalyzerTM generates single particles from a levitated drop under simulated spray-drying conditions. A set of surface-active polymers (bovine serum albumin, hydroxypropyl methyl cellulose, and triblock co-polymer Poloxamer), in combination with lactose, were analyzed for their dynamic surface properties in solution, and their effect on particle morphology and surface composition were determined by low-vacuum SEM and XPS analyses. The morphology obtained in spray drying was reproduced in the single-particle drying. The surface compositions were also similar, but higher levels of surface-active materials were found at the surface of the single particles as compared to the spray-dried particles. Further, the adsorption rate of surface-active compounds at the drop surface estimated by dynamic surface tension was found to be an important parameter to estimate the surface composition at different drying scales. The particle morphology was primarily determined by the surface rheological properties of the feed solution and, to a lesser extent, by the surface composition.

  • 324.
    Nuzzo, Marine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science. Lund University, Sweden.
    Sloth, Jakob
    GEA Process Engineering A/S, Denmark.
    Bergenstahl, Björn
    Lund University, Sweden.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Phase segregation in individually dried particles composed of biopolymers2015In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 31, no 40, p. 10946-10954Article in journal (Refereed)
    Abstract [en]

    Mixing of two biopolymers can results in phase separation due to their thermodynamically incompatibility under certain conditions. This phenomenon was first reported when the solution was allowed to equilibrate, but it has later been observed also as a consequence of drying. The challenges of this study were to observe phase segregation by confocal Raman microscopy and LV-SEM on dried film, individually dried particles, and spray dried particles. The influence of the solid content and the phase ratio (composition) of a HPMC/maltodextrin mixture on the localization of the ingredients in the individually dried particles was investigated. We observed that phase segregation of HPMC and maltodextrin is induced by solvent evaporation in film drying, single particle drying, as well as spray drying. The phase ratio is an important parameter that influences the localization of the HPMC-enriched phase and maltodextrin-enriched phase, i.e., to the particle surface, to the core, or in a more or less bicontinuous pattern. The drying time, affected by the solids content, was found to control the level of advancement of the phase segregation.

  • 325.
    Nuzzo, Marine
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. Lund University, Sweden.
    Sloth, Jakob
    GEA Process Engineering A/S, Denmark.
    Brandner, Birgit
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Bergenstahl, Björn
    Lund University, Sweden.
    Millqvist-Fureby, Anna
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Confocal Raman microscopy for mapping phase segregation in individually dried particles composed of lactose and macromolecules2015In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 481, p. 229-236Article in journal (Refereed)
    Abstract [en]

    The quality of powder is determined by its functionality such as dissolution, encapsulation and flowability. The functionality of powder is in turn determined by their primary properties such as morphology and composition which need to be studied. Hence morphology and surface composition has been largely investigated in spray dried powders and individually dried particles. On the contrary, there is only scarce information regarding the internal structure. With the aim of acquiring a better understanding of the localization of different ingredients in spray dried powders we have used confocal Raman microscopy to investigate the internal microstructure of individually dried particles. In this study three different macromolecules have been investigated: bovine serum albumin, hydroxypropyl methyl cellulose, and triblock co-polymer poloxamer in a lactose matrix are compared at various macromolecule to lactose ratios. The surface and internal component distribution in response to the macromolecule concentration has been established. For the first time phase segregation in particles during a short drying time range is shown. Macromolecules were enriched at the surface of the dried particles and a macromolecule depleted layer was observed below the surface. Macromolecule enriched domains were found segregated from the amorphous lactose matrix in the internal part of the particles. Confocal Raman microscopy was found to be a powerful tool for internal mapping in individually dried particles.

  • 326.
    Nygren, H
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Eriksson, C
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Lausmaa, J
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Adhesion and activation of platelets and polymorphonuclear granulocyte cells at TiO2 surfaces1997In: Journal of Laboratory and Clinical Medicine, ISSN 0022-2143, E-ISSN 1532-6543, Vol. 129, no 1, p. 35-46Article in journal (Other academic)
  • 327.
    Nyman, Jonas
    et al.
    University of Borås, Sweden.
    Lacintra, Michael G.
    University of Borås, Sweden.
    Westman, Johan O.
    University of Borås, Sweden; Chalmers University of Technology, Sweden.
    Berglin, Mattias
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Lundin, Magnus
    University of Borås, Sweden.
    Lennartsson, Patrik R.
    University of Borås, Sweden.
    Taherzadeh, Mohammad J.
    University of Borås, Sweden.
    Pellet formation of zygomycetes and immobilization of yeast2013In: New Biotechnology, ISSN 1871-6784, E-ISSN 1876-4347, Vol. 30, no 5, p. 516-522Article in journal (Refereed)
    Abstract [en]

    Pelleted growth provides many advantages for filamentous fungi, including decreased broth viscosity, improved aeration, stirring, and heat transfer. Thus, the factors influencing the probability of pellet formation of Rhizopus sp. in a defined medium was investigated using a multifactorial experimental design. Temperature, agitation intensity, Ca2+-concentration, pH, and solid cellulose particles, each had a significant effect on pelletization. Tween 80, spore concentration, and liquid volume were not found to have a significant effect. All of the effects were additive; no interactions were significant. The results were used to create a simple defined medium inducing pelletization, which was used for immobilization of a flocculating strain of Saccharomyces cerevisiae in the zygomycetes pellets. A flor-forming S. cerevisiae strain was also immobilized, while a non-flocculating strain colonized the pellets but was not immobilized. No adverse effects were detected as a result of the close proximity between the filamentous fungus and the yeast, which potentially allows for co-fermentation with S. cerevisiae immobilized in pellets of zygomycetes.

  • 328.
    Nyström, Lina
    et al.
    Uppsala University, Sweden.
    Nordström, Randi
    Uppsala University, Sweden.
    Bramhill, Jane
    University of Manchester, UK.
    Saunders, Brian R.
    University of Manchester, UK.
    Álvarez-Asencio, Rubén
    KTH Royal Institute of Technology, Sweden; IMDEA Nanoscience, Spain.
    Rutland, Mark W.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science. KTH Royal Institute of Technology, Sweden.
    Malmsten, Martin
    Uppsala University, Sweden.
    Factors affecting peptide interactions with surface-bound microgels2016In: Biomacromolecules, ISSN 1525-7797, E-ISSN 1526-4602, Vol. 17, no 2, p. 669-678Article in journal (Refereed)
    Abstract [en]

    Effects of electrostatics and peptide size on peptide interactions with surface-bound microgels were investigated with ellipsometry, confocal microscopy, and atomic force microscopy (AFM). Results show that binding of cationic poly-l-lysine (pLys) to anionic, covalently immobilized, poly(ethyl acrylate-co-methacrylic acid) microgels increased with increasing peptide net charge and microgel charge density. Furthermore, peptide release was facilitated by decreasing either microgel or peptide charge density. Analogously, increasing ionic strength facilitated peptide release for short peptides. As a result of peptide binding, the surface-bound microgels displayed pronounced deswelling and increased mechanical rigidity, the latter quantified by quantitative nanomechanical mapping. While short pLys was found to penetrate the entire microgel network and to result in almost complete charge neutralization, larger peptides were partially excluded from the microgel network, forming an outer peptide layer on the microgels. As a result of this difference, microgel flattening was more influenced by the lower Mw peptide than the higher. Peptide-induced deswelling was found to be lower for higher Mw pLys, the latter effect not observed for the corresponding microgels in the dispersed state. While the effects of electrostatics on peptide loading and release were similar to those observed for dispersed microgels, there were thus considerable effects of the underlying surface on peptide-induced microgel deswelling, which need to be considered in the design of surface-bound microgels as carriers of peptide loads, for example, in drug delivery or in functionalized biomaterials.

  • 329.
    Nyström, Lina
    et al.
    Uppsala University, Sweden.
    Álvarez-Asencio, Rubén
    KTH Royal Institute of Technology, Sweden; IMDEA Nanoscience, Spain.
    Frenning, Göran
    Uppsala University, Sweden.
    Saunders, Brian R.
    University of Manchester, UK.
    Rutland, Mark W.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science. KTH Royal Institute of Technology, Sweden.
    Malmsten, Martin
    Uppsala University, Sweden.
    Electrostatic swelling transitions in surface-bound microgels2016In: ACS Applied Materials and Interfaces, ISSN 1944-8244, E-ISSN 1944-8252, Vol. 8, no 40, p. 27129-27139Article in journal (Refereed)
    Abstract [en]

    Herein, electrostatic swelling transitions of poly(ethyl acrylate-co-methacrylic acid) microgels covalently bound to silica surfaces are investigated. Confined at a solid surface, microgel swelling is anisotropically hindered and the structure is flattened to an extent dictated by pH and microgel composition. Microgel deformation under applied load is also shown to depend on microgel charge density, with the highest deformation observed at intermediate charge densities. Two modes of microgel deformation under load were observed, one elastic and one viscoelastic, related to polymer strand deformation and displacement of trapped water, respectively. Results on polymer strand dynamics reveal that the microgels are highly dynamic, as the number of strand-tip interaction points increases 4-fold during a 10 s contact time. Furthermore, finite element modeling captures these effects qualitatively and shows that stress propagation in the microgel network decays locally at the rim of contact with a solid interface or close to the tip probe. Taken together, the results demonstrate a delicate interplay between the surface and microgel which determines the structure and nanomechanical properties of the latter and needs to be controlled in applications of systems such as pH-responsive surface coatings in biomaterials.

  • 330. Näykki, Teemu
    et al.
    Magnusson, Bertil
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Helm, Irja
    Jalukse, Lauri
    Väisänen, Tero
    Leito, Ivo
    Comparison of measurement uncertainty estimates using quality control and validation data2014In: Journal of Chemical Metrology, ISSN 1307-6183, Vol. 8, no 1, p. 1-12Article in journal (Refereed)
    Abstract [en]

    A study was organised where consistency of measurement uncertainty estimations between laboratories in Finland, Sweden and Estonia was surveyed. For all laboratories a file was delivered containing the same set of fictional quality control and validation results for the measurement of total nitrogen in waste water. The laboratories were asked to evaluate the measurement uncertainty using quality control and validation data with the Nordtest approach, using the free MUkit software for measurement uncertainty estimation developed by SYKE. A total of 21 laboratories participated in the survey. Attention was paid to handling of the data, e.g. selecting the concentration ranges for uncertainty estimation, choosing the appropriate approach among those proposed in the Nordtest guide used for uncertainty estimation, choosing the way in which the uncertainty was reported (absolute or relative) and the outcomes of the measurement uncertainty estimations. Most of the laboratories estimated measurement uncertainty for more than one concentration range. The majority also reported measurement uncertainty in relative numbers, even in the low concentration range, where it is advised for most instrumental methods to perform calculation with absolute values. As measurement uncertainty was reported as relative values, it was heavily underestimated at the lowest concentration levels. However, the measurement uncertainty estimates were consistent between the laboratories, and variability of relative uncertainty estimates was small (within ± 2% units from the average value). This indicates that with the same data and with the unified uncertainty estimation approach, laboratories are able to achieve the same expanded measurement uncertainty. Therefore, the unified estimation of measurement uncertainty is a way of improving the comparability of analysis results between laboratories.

  • 331.
    Näykki, Teemu
    et al.
    Finnish Environment Institute, Finland.
    Virtanen, Atte
    Finnish Environment Institute, Finland.
    Kaukonen, Lari
    Finnish Environment Institute, Finland.
    Magnusson, Bertil
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Kemi.
    Väisänen, Tero
    Finnish Environment Institute, Finland.
    Leito, Ivo
    University of Tartu, Estonia.
    Application of the Nordtest method for “real-time” uncertainty estimation of on-line field measurement2015In: Environmental Monitoring & Assessment, ISSN 0167-6369, E-ISSN 1573-2959, Vol. 187, no 10, article id 630Article in journal (Refereed)
    Abstract [en]

    Field sensor measurements are becoming more common for environmental monitoring. Solutions for enhancing reliability, i.e. knowledge of the measurement uncertainty of field measurements, are urgently needed. Real-time estimations of measurement uncertainty for field measurement have not previously been published, and in this paper, a novel approach to the automated turbidity measuring system with an application for “real-time” uncertainty estimation is outlined based on the Nordtest handbook’s measurement uncertainty estimation principles. The term real-time is written in quotation marks, since the calculation of the uncertainty is carried out using a set of past measurement results. There are two main requirements for the estimation of real-time measurement uncertainty of online field measurement described in this paper: (1) setting up an automated measuring system that can be (preferably remotely) controlled which measures the samples (water to be investigated as well as synthetic control samples) the way the user has programmed it and stores the results in a database, (2) setting up automated data processing (software) where the measurement uncertainty is calculated from the data produced by the automated measuring system. When control samples with a known value or concentration are measured regularly, any instrumental drift can be detected. An additional benefit is that small drift can be taken into account (in real-time) as a bias value in the measurement uncertainty calculation, and if the drift is high, the measurement results of the control samples can be used for real-time recalibration of the measuring device. The procedure described in this paper is not restricted to turbidity measurements, but it will enable measurement uncertainty estimation for any kind of automated measuring system that performs sequential measurements of routine samples and control samples/reference materials in a similar way as described in this paper.

  • 332.
    Oko, Asaf
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Brandner, Birgit
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Bugner, Douglas E.
    Eastman Kodak Company, USA.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. Eastman Kodak Company, USA.
    Claesson, Per
    RISE, SP – Sveriges Tekniska Forskningsinstitut. KTH Royal Institute of Technology, Sweden.
    Aggregation of inkjet ink components by Ca and Mg ions in relation to colorant pigment distribution in paper2014In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, ISSN 0927-7757, E-ISSN 1873-4359, Vol. 456, no 1, p. 92-99Article in journal (Refereed)
    Abstract [en]

    Papers coated with salts containing divalent cations exhibit superior inkjet print quality, which has been suggested to be due to fast aggregation of the colorant pigments close to, or even on, the surface of the paper. In this work we show the pivotal role of the carboxylic acid containing dispersing polymer. We report a series of aggregation and sedimentation experiments with commercial inks, generic ink formulations and specific ingredients comprising these formulations, and find differences in their response to the presence of MgCl2 or CaCl2. In particular, flocs and sediments formed in the presence of MgCl2 are denser than those formed in the presence of CaCl2. These differences are not predicted by the Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. We suggest that ion specific interactions occurring between Mg2+ or Ca2+, and charged carboxylate groups residing on the dispersing polymers, provoke the observed behavior.

  • 333.
    Oko, Asaf
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Claesson, Per M.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik. KTH Royal Institute of Technology, Sweden.
    Niga, Petru
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Life Science.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Measurements and dimensional scaling of spontaneous imbibition of inkjet droplets on paper2016In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 31, no 1, p. 156-169Article in journal (Refereed)
    Abstract [en]

    We investigate theoretically and experimentally the spontaneous imbibition of water based inkjet formulations utilizing paper capillary rise and imbibition of inkjet drops. We approximate the paper structure to a two dimensional anisotropic porous material, and using Darcy's law as a base, we derive dimensionless groups that scale drop imbibition. This derivation is based on a previous dimensional scaling of drop imbibition on thick isotropic porous material. We apply this scaling to a paper substrate by measuring the average drop imbibition rate, and perform paper capillary rise experiments to obtain the average system parameters required for the scaling. The results suggest that this approach is a valuable tool to predict drop imbibition rates on paper. We then continue and perform the same sets of experiments on a different paper with similar structure that is surface treated (surface sized) with CaCl2 salt, an additive that is known to improve print quality. We find that due to rapid aggregation of the colorant ink by the CaCl2, the imbibition rate is slowed down in the capillary rise experiments, i.e., on much larger scales compared to a single inkjet drop. However, the presence of CaCl2 has only minor effect over the average imbibition rates of single drops. Imbibition rates on the CaCl2 surface sized paper did not give adequate scaling as a result of the fact that the aggregation was not included the theoretical assumptions behind the scaling.

  • 334.
    Oko, Asaf
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Martinez, Mark
    University of British Columbia, Canada.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut. KTH Royal Institute of Technology, Sweden.
    Infiltration and dimensional scaling of inkjet droplets on thick isotropic porous materials2014In: Microfluidics and Nanofluidics, ISSN 1613-4982, E-ISSN 1613-4990, Vol. 17, no 2, p. 413-422Article in journal (Refereed)
    Abstract [en]

    We study the imbibition of picoliter (pL)-sized inkjet droplets on controlled pore glass membranes (CPG), as a suitable model for isotropic three-dimensional porous materials. We do so using a variety of liquids, i.e., water, formamide and diiodomethane, and measure the evolution of the imbibition process using high-speed digital imaging. Here, experiments were conducted on 2-280 nm CPG membranes with drops with initial volumes ranging from 100 to 600 pL. We derive scaling laws for imbibition through dimensional analysis and advance the argument that the rate of absorption is related to two-dimensionless groups V = v(t)ε/vtot; T = tkpc/μ(ε/v tot)2/3, where v(t) is the imbibed volume, as determined from experiments, t is the time, v tot the total liquid volume, ε the porosity, μ the liquid viscosity, k the permeability, and p c the Laplace capillary pressure. We show this scaling to well describe the system at intermediate T values and report that V ∝ T 0.8.

  • 335.
    Oko, Asaf
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Erratum: Infiltration and dimensional scaling of inkjet droplets on thick isotropic porous materials2014In: Microfluidics and Nanofluidics, ISSN 1613-4982, E-ISSN 1613-4990, Vol. 17, no 2, p. 423-Article in journal (Refereed)
  • 336.
    Oko, Asaf
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Swerin, Agne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Infiltration and dimensional scaling of picoliter inkjet drops on nano- and microporous materials – isotropic porous glass and anisotropic paper2016In: Annual Surface and Materials Chemistry Symposium and Materials for tomorrow (ASMCS 2016), 2016Conference paper (Refereed)
  • 337.
    Olausson, Michael
    et al.
    University of Gothenburg, Sweden.
    Kuna, Vijay Kumar
    University of Gothenburg, Sweden.
    Travnikova, Galyna
    University of Gothenburg, Sweden.
    Bäckdahl, Henrik
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Patil, Pradeep Bhatu
    University of Gothenburg, Sweden.
    Saalman, Robert
    Sahlgrenska University Hospital, Sweden.
    Borg, Helena C.
    Sahlgrenska University Hospital, Sweden.
    Jeppsson, Anders
    Sahlgrenska University Hospital, Sweden.
    Sumitran-Holgersson, Suchitra H.
    Sahlgrenska University Hospital, Sweden.
    In vivo application of tissue-engineered veins using autologous peripheral whole blood: A proof of concept study2014In: EBioMedicine, E-ISSN 2352-3964, Vol. 1, no 1, p. 72-79Article in journal (Refereed)
    Abstract [en]

    Vascular diseases are increasing health problems affecting >25 million individuals in westernized societies. Such patients could benefit fromtransplantation of tissue-engineered vascular grafts using autologous cells. One challenge that has limited this development is the need for cell isolation, and risks associated with ex vivo expanded stem cells. Herewe demonstrate a novel approach to generate transplantable vascular grafts using decellularized allogeneic vascular scaffolds, repopulatedwith peripheralwhole blood (PWB) in vitro in a bioreactor. Circulating, VEGFR-2+/CD45+ and a smaller fraction of VEGFR-2+/CD14+ cells contributed to repopulation of the graft. SEMmicrographs showed flat cells on the luminal surface of the grafts consistentwith endothelial cells. For clinical validation, two autologous PWBtissue-engineered vein conduits were prepared and successfully used for bypass procedures in two pediatric patients. These results provide a proof of principle for the generation of transplantable vascular grafts using a simple autologous blood sample, making it clinically feasible globally.

  • 338.
    Oliynyk, Vitaliy
    et al.
    Stockholm University, Sweden.
    Mille, Christian B.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. Stockholm University, Sweden.
    Ng, Jovice Boon Sing
    Stockholm University, Sweden.
    Von Ballmoos, Christoph
    Stockholm University, Sweden.
    Corkery, Robert W.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. KTH Royal Institute of Technology, Sweden.
    Bergstrom, Lennart
    Stockholm University, Sweden.
    Selective and ATP-driven transport of ions across supported membranes into nanoporous carriers using gramicidin A and ATP synthase2013In: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 15, no 8, p. 2733-2740Article in journal (Refereed)
    Abstract [en]

    We report a robust and versatile membrane protein based system for selective uptake and release of ions from nanoporous particles sealed with ion-tight lipid bilayers of various compositions that is driven by the addition of ATP or a chemical potential gradient. We have successfully incorporated both a passive ion channel-type peptide (gramicidin A) and a more complex primary sodium ion transporter (ATP synthase) into the supported lipid bilayers on solid nanoporous silica particles. Protein-mediated controlled release/uptake of sodium ions across the ion-tight lipid bilayer seal from or into the nanoporous silica carrier was imaged in real time using a confocal laser scanning microscope and the intensity changes were quantified. ATP-driven transport of sodium ions across the supported lipid bilayer against a chemical gradient was demonstrated. The possibility of designing durable carriers with tight lipid membranes, containing membrane proteins for selective ion uptake and release, offers new possibilities for functional studies of single or cascading membrane protein systems and could also be used as biomimetic microreactors for controlled synthesis of inorganic multicomponent materials.

  • 339.
    Olsen, Elisabeth K.
    et al.
    UiT The Arctic University of Norway, Norway.
    Hansen, Espen
    UiT The Arctic University of Norway, Norway.
    Moodie, Lindon W. K.
    University of Umeå, Sweden.
    Isaksson, Johan
    UiT The Arctic University of Norway, Norway.
    Sepčić, Kristina
    University of Ljubljana, Slovenia.
    Cergolj, Marija
    University of Ljubljana, Slovenia; University of Rijeka, Croatia.
    Svenson, Johan
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Medicinteknik.
    Andersen, Jeanette H.
    UiT The Arctic University of Norway, Norway.
    Marine AChE inhibitors isolated from Geodia barretti: Natural compounds and their synthetic analogs2016In: Organic and biomolecular chemistry, ISSN 1477-0520, E-ISSN 1477-0539, Vol. 14, no 5, p. 1629-1640Article in journal (Refereed)
    Abstract [en]

    Barettin, 8,9-dihydrobarettin, bromoconicamin and a novel brominated marine indole were isolated from the boreal sponge Geodia barretti collected off the Norwegian coast. The compounds were evaluated as inhibitors of electric eel acetylcholinesterase. Barettin and 8,9-dihydrobarettin displayed significant inhibition of the enzyme, with inhibition constants (Ki) of 29 and 19 μM respectively towards acetylcholinesterase via a reversible noncompetitive mechanism. These activities are comparable to those of several other natural acetylcholinesterase inhibitors of marine origin. Bromoconicamin was less potent against acetylcholinesterase, and the novel compound was inactive. Based on the inhibitory activity, a library of 22 simplified synthetic analogs was designed and prepared to probe the role of the brominated indole, common to all the isolated compounds. From the structure-activity investigation it was shown that the brominated indole motif is not sufficient to generate a high acetylcholinesterase inhibitory activity, even when combined with natural cationic ligands for the acetylcholinesterase active site. The four natural compounds were also analysed for their butyrylcholinesterase inhibitory activity in addition and shown to display comparable activities. The study illustrates how both barettin and 8,9-dihydrobarettin display additional bioactivities which may help to explain their biological role in the producing organism. The findings also provide new insights into the structure-activity relationship of both natural and synthetic acetylcholinesterase inhibitors.

  • 340.
    Olsson, Marcus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Sárvári, Ilona
    Ekendahl, Susanne
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Polymer och fiber.
    Brive, Lena
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Sveriges tekniska forskningsinstitut, SP – Sveriges Tekniska Forskningsinstitut / Organisk kemi (Kmo).
    Luca Kovacs, Eva
    Söderberg, Peter
    Edberg, Ann
    Mikroskopiska alger som kombinerad koldioxidsänka och energikälla i Sverige2011Report (Other (popular science, discussion, etc.))
  • 341.
    Olszewska, Anna Maria
    et al.
    Aalto University, Finland.
    Junka, Karoliina
    Aalto University, Finland.
    Niklas, Nordgren
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Laine, Janne
    Aalto University, Finland.
    Rutland, Mark
    RISE, SP – Sveriges Tekniska Forskningsinstitut. KTH Royal Institute of Technology, Sweden.
    Österberg, Monika
    Aalto University, Finland.
    Non-ionic assembly of nanofibrillated cellulose and polyethylene glycol grafted carboxymethyl cellulose and the effect of aqueous lubrication in nanocomposite formation2013In: Soft Matter, ISSN 1744-683X, E-ISSN 1744-6848, Vol. 9, no 31, p. 7448-7457Article in journal (Refereed)
    Abstract [en]

    A facile route to significantly lower the frictional forces between cellulose nanofibrils (NFC) has been presented. The concept is based on the surface modification of NFC by adsorption of polyethylene glycol grafted carboxymethyl cellulose (CMC-g-PEG) via non-ionic interactions. The adsorption was studied using quartz crystal microbalance with dissipation (QCM-D). The changes in viscoelastic properties of the adsorbed layers, upon changes in pH were evaluated and attributed to the conformation of CMC. Surface forces and frictional properties of NFC films were examined using the AFM colloidal probe technique and were shown to be highly pH dependent. A significant difference in behaviour was observed upon the surface modification of NFC. After adsorption of CMC-g-PEG, repulsive forces were acting over a much longer distance than predicted by DLVO theory. This was ascribed to the CMC-g-PEG chain extension, the effect of which was even more pronounced at higher pH due to the deprotonation of carboxyl groups on CMC. A higher anionic charge resulted in increased water content and swelling of the layer. Additionally, the adsorption of CMC-g-PEG onto NFC films markedly increased the lubrication by the reduction of the friction coefficient by 65% and 88% at pH 4.5 and pH 7.3, respectively.

  • 342.
    Ovaska, Sami-Seppo
    et al.
    Lappeenranta University of Technology, Finland.
    Hiltunen, Salla
    Lappeenranta University of Technology, Finland.
    Ernstsson, Marie
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Schuster, Erich
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Structure Design.
    Altskär, Annika
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Food and Bioscience, Structure Design.
    Backfolk, Kaj
    Lappeenranta University of Technology, Finland.
    Characterization of rapeseed oil/coconut oil mixtures and their penetration into hydroxypropylated-starch-based barrier coatings containing an oleophilic mineral2016In: Progress in organic coatings, ISSN 0300-9440, E-ISSN 1873-331X, Vol. 101, p. 569-576Article in journal (Refereed)
    Abstract [en]

    A study was conducted that demonstrated that the blending of edible oils leads to changes in surface tension, thermal properties, viscosity, and oil penetration times through a barrier-coated paperboard. The results emphasize the significance of testing the oil and grease resistance (OGR) oil blends in order-to verify the suitability of the packaging material for real-life end-use applications. The results of the OGR determinations suggest that hydroxypropylated-starch-based composite coatings containing an oleophilic high aspect ratio mineral can be tailored for food shaving different fatty acid compositions by varying the pigmentation level. Compared to standard OGR tests, confocal laser scanning microscopy (CLSM)-based techniques make it possible to evaluate the oil penetration time and its diffusion behavior very accurately, both inside the coating layer and in the bulk matrix. It was found that, at room temperature, coconut oil tends to crystallize inside the substrate, inducing swelling of the coating layer, which probably has an influence on the physicomechanical properties of the packaging material.

  • 343.
    Palm, Magnus
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Gränsvärden för klorider efter PVC-bränder2002Report (Refereed)
    Download full text (pdf)
    fulltext
  • 344.
    Palm, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    New accelerated weathering tests including acid rain2002In: JCT: Journal of Coatings Technology, ISSN 0361-8773, Vol. 74, p. 69-74,79Article in journal (Other academic)
  • 345.
    Palm, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Utveckling och analys av accelererade åldringsmetoder för fordonslacker.1998Report (Refereed)
    Download full text (pdf)
    fulltext
  • 346.
    Palm, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Heale, Beatrice
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Carlsson, Bo
    Jämförelse av tillgängliga rostskyddssystem för kulturmiljövård – resultat av fältstationsstationsprovningar samt jämförelse med resultat från accelererad provning2006Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 347.
    Palm, Magnus
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor, Material och ytteknik.
    Mattiasson, Kerstin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Mätteknik, Volym, flöde, temperatur o densitet.
    Nordling, Bengt
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Energi och Bioekonomi, Klimatisering och installationsteknik.
    Segerdahl, Karin
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Kopparbeläggningar på induktiva flödesmätare2005Report (Refereed)
    Download full text (pdf)
    FULLTEXT01
  • 348.
    Palmquist, A
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Brånemark, R
    Retrieval and analysis of orthopaedic implants: Chapter 152009In: Bone Repair Biomaterials: A volume in Woodhead Publishing Series in Biomaterials / [ed] Planell, J.A; Best, S.M; Lacroix, D; Merolli, A, Elsevier, 2009, p. 423-440Chapter in book (Refereed)
  • 349.
    Palmquist, A
    et al.
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor.
    Brånemark, R
    Retrieval and analysis of orthopaedic implants: Chapter 152009In: Bone Repair Biomaterials: A volume in Woodhead Publishing Series in Biomaterials, Elsevier, 2009, p. 423-440Chapter in book (Refereed)
  • 350.
    Partanen, Riitta
    et al.
    VTT Technical Research Centre of Finland, Finland.
    Forssell, Pirkko M.
    VTT Technical Research Centre of Finland, Finland.
    Mackie, Alan R.
    Institute of Food Research, United Kingdom.
    Blomberg, Eva
    RISE, SP – Sveriges Tekniska Forskningsinstitut, SP Kemi Material och Ytor. KTH Royal Institute of Technology, Sweden.
    Interfacial cross-linking of β-casein changes the structure of the adsorbed layer2013In: Food Hydrocolloids, ISSN 0268-005X, E-ISSN 1873-7137, Vol. 32, no 2, p. 271-277Article in journal (Refereed)
    Abstract [en]

    The mechanism of transglutaminase-induced cross-linking of interfacial β-casein layer was investigated in tetradecane/buffer system. Monolayer studies were carried out in a Langmuir trough, where incubation with the enzyme mostly affected the compression of the film through adsorption of transglutaminase to the interface. Interfacial shear rheology was used to follow the kinetics of formation of a visco-elastic film upon cross-linking. Substrate concentration affected the rate of the interfacial cross-linking, when enzyme was dosed per protein concentration. This was most likely due to the saturated substrate layer at the interface in all cases. SDS-PAGE revealed that most of the β-casein at the interface was not cross-linked by intermolecular links, but rather, intramolecular links were formed. Finally, studies of adsorbed β-casein layers on polystyrene beads revealed that cross-linking reduced the thickness of the adsorption layer from 11-12 nm to 8-9 nm. These results suggest that it may be mainly intra-molecular cross-linking which modifies the physical interactions of β-caseins at the interface resulting in a higher layer density and thus, formation of a visco-elastic network.

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