Blar i Bergen Open Research Archive på forfatter "Holst, Bodil"
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Retrieval practice of a hierarchical principle structure in university introductory physics: Making stronger students
Gjerde, Vegard; Holst, Bodil; Kolstø, Stein Dankert (Journal article; Peer reviewed, 2020)Introductory physics is taught to several hundred thousand university students every year. It is seen as especially difficult by many and the failure rate is often high. A relevant question is whether one can increase the ... -
Sub-resolution contrast in neutral helium microscopy through facet scattering for quantitative imaging of nanoscale topographies on macroscopic surfaces
Eder, Sabrina Daniela; Fahy, Adam; Barr, Matthew G.; Manson, Joseph R.; Holst, Bodil; Dastoor, Paul C. (Journal article; Peer reviewed, 2023)Nanoscale thin film coatings and surface treatments are ubiquitous across industry, science, and engineering; imbuing specific functional or mechanical properties (such as corrosion resistance, lubricity, catalytic activity ... -
Temperature induced color change in gold nanoparticle arrays: Investigating the annealing effect on the localized surface plasmon resonance
Holm, Vårin Renate Andvik; Greve, Martin Møller; Holst, Bodil (Peer reviewed; Journal article, 2016)The localized surface plasmon resonance (LSPR) effect in metal nanoparticles is important for a range of applications, including photovoltaics and sensors. The actual LSPR effect is difficult to predict, because it can ... -
Temperature-Dependent Bending Rigidity of AB-Stacked Bilayer Graphene
Eder, Sabrina Daniela; Hellner, Simen Kaasa; Forti, Stiven; Nordbotten, Jan Martin; Manson, Joseph R.; Coletti, Camilla; Holst, Bodil (Journal article; Peer reviewed, 2021)The change in bending rigidity with temperature κ(T) for 2D materials is highly debated: theoretical works predict both increase and decrease. Here we present measurements of κ(T), for a 2D material: AB-stacked bilayer ... -
Towards greener wind power: Nanodiamond-treated flax fiber composites outperform standard glass fiber composites in impact fatigue tests
Hinzmann, Carsten; Johansen, Nicolai Frost-Jensen; Hasager, Charlotte Bay; Holst, Bodil (Journal article; Peer reviewed, 2024)Wind energy is facing two major problems, recyclability of wind turbine blades, primarily made from fiberglass, and rain erosion on the blade’s leading edges. Here, we show that flax fiber reinforced epoxy composites have ... -
Transparent, Antibiofouling Window Obtained with Surface Nanostructuring
Szapoczka, Wiktoria Karolina; Larsen, Viljar H.; Böpple, Hanna; Kleinegris, Dorinde Mechtilde Meike; Diao, Zhaolu; Skodvin, Tore; Spatz, Joachim P.; Holst, Bodil; Thomas, Peter James (Journal article; Peer reviewed, 2024)Biofouling is one of the key factors which limits the long-term performance of seawater sensors. Common measures to hinder biofouling include toxic paints, mechanical cleaning and UV radiation. All of these measures have ... -
True-to-size surface mapping with neutral helium atoms
Lambrick, Sam; Salvador Palau, Adria; Hansen, Poul Erik; Bracco, Gianangelo; Ellis, John; Jardine, Andrew P.; Holst, Bodil (Journal article; Peer reviewed, 2021)Three-dimensional mapping of microscopic surface structures is important in many applications of technology and research, including areas as diverse as microfluidics, MEMS, and geoscience. However, on the nanoscale, using ... -
The use of surfactant-filled mesoporous silica as an immobilising medium for a fluorescence lifetime pH indicator, providing long-term calibration stability
Totland, Christian; Thomas, Peter; Holst, Bodil; Hovdenes, Jostein; Akhtar, Naureen; Skodvin, Tore (Peer reviewed; Journal article, 2019-11-14)Surfactant filled mesoporous silica is applied as a matrix for immobilizing the fluorescence lifetime pH-indicator acridine. We demonstrate that this type of encapsulation provides a stable and uniform chemical environment ... -
Variation of bending rigidity with material density: bilayer silica with nanoscale holes
Tømterud, Martin; Eder, Sabrina Daniela; Büchner, Christin; Heyde, Markus; Freund, Hans Joachim; Manson, Joseph R.; Holst, Bodil (Journal article; Peer reviewed, 2022)Two dimensional (2D) materials are a young class of materials that is foreseen to play an important role as building blocks in a range of applications, e.g. flexible electronics. For such applications, mechanical properties ... -
Velocity distributions in microskimmer supersonic expansion helium beams: High precision measurements and modeling
Eder, Sabrina Daniela; Palau, Adria Salvador; Kaltenbacher, Thomas; Bracco, Gianangelo; Holst, Bodil (Peer reviewed; Journal article, 2018)Supersonic molecular beams are used in many applications ranging from spectroscopy and matter wave optics to surface science. The experimental setup typically includes a conically shaped, collimating aperture, the skimmer. ... -
Viking and early middle ages Northern Scandinavian textiles proven to be made with hemp
Skoglund, Git; Nockert, Margareta; Holst, Bodil (Peer reviewed; Journal article, 2013-10-18)Nowadays most plant textiles used for clothing and household are made of cotton and viscose. Before the 19th century however, plant textiles were mainly made from locally available raw materials, in Scandinavia these were: ...