Institutt for fysikk
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Contact-free reversible switching of improper ferroelectric domains by electron and ion irradiation
(Peer reviewed; Journal article, 2021)Focused ion beam (FIB) and scanning electron microscopy (SEM) are used to reversibly switch improper ferroelectric domains in the hexagonal manganite ErMnO3. Surface charging is achieved by local ion (positive charging) ... -
Hypoxia imaging and theranostic potential of [64Cu][Cu(ATSM)] and ionic Cu(II) salts: a review of current evidence and discussion of the retention mechanisms
(Peer reviewed; Journal article, 2020)Background Tumor hypoxia (low tissue oxygenation) is an adverse condition of the solid tumor environment, associated with malignant progression, radiotherapy resistance, and poor prognosis. One method to detect tumor ... -
Structure and properties of densified silica glass: characterizing the order within disorder
(Peer reviewed; Journal article, 2020)The broken symmetry in the atomic-scale ordering of glassy versus crystalline solids leads to a daunting challenge to provide suitable metrics for describing the order within disorder, especially on length scales beyond ... -
Sex differences and tumor blood flow from dynamic susceptibility contrast MRI are associated with treatment response after chemoradiation and long-term survival in rectal cancer
(Peer reviewed; Journal article, 2020)Sex differences, tumor vascularity, and blood flow seen on multiecho dynamic contrast–based MRI scans enabled prediction of treatment response and overall survival in patients with rectal cancer. Background: MRI is the ... -
Microfluidic channels for biomedical diagnostic devices
(Doctoral theses at NTNU;2021:54, Doctoral thesis, 2021)Disease detection is of utmost importance for initiating appropriate treatment and efficient preventative measures. Therefore, providing an inexpensive, fast and robust alternative to the current detection techniques, ... -
Focused ultrasound and microbubble treatment increases delivery of transferrin receptor-targeting liposomes to the brain
(Peer reviewed; Journal article, 2021)The blood-brain barrier (BBB) is a major obstacle to treating several brain disorders. Focused ultrasound (FUS) in combination with intravascular microbubbles increases BBB permeability by opening tight junctions, creating ... -
Fluorescent Nanocomposites: Hollow Silica Microspheres with Embedded Carbon Dots
(Journal article; Peer reviewed, 2021)Intrinsically fluorescent carbon dots may form the basis for a safer and more accurate sensor technology for digital counting in bioanalytical assays. This work presents a simple and inexpensive synthesis method for producing ... -
Biological lipid nanotubes and their potential role in evolution
(Peer reviewed; Journal article, 2020)The membrane of cells and organelles are highly deformable fluid interfaces, and can take on a multitude of shapes. One distinctive and particularly interesting property of biological membranes is their ability to from ... -
Selective area grown ZnTe nanowires as the basis for quasi-one-dimensional CdTe-HgTe multishell heterostructures
(Peer reviewed; Journal article, 2020)Selective area growth is employed in the vapor-liquid-solid molecular beam epitaxy of ZnTe nanowire arrays. Full control over the location of the individual nanowires is achieved by defined positioning of the growth catalyst. ... -
A combined fluid-dynamic and thermodynamic model to predict the onset of rapid phase transitions in LNG spills
(Peer reviewed; Journal article, 2020)Transport of liquefied natural gas (LNG) by ship occurs globally on a massive scale. The large temperature difference between LNG and water means LNG will boil violently if spilled onto water. This may cause a physical ... -
Effects of Oxygen Mobility in La-Fe-Based Perovskites on the Catalytic Activity and Selectivity of Methane Oxidation
(Peer reviewed; Journal article, 2020)The mechanism and structure requirements of selective and total oxidation of methane in a chemical looping process are both experimentally and theoretically examined on La1–xSrxFeO3−δ (x = 0, 0.2, and 0.5) and La0.5Sr0.5 ... -
SiC crystalline micro bullets on bio-carbon based charcoal substrate
(Peer reviewed; Journal article, 2020)Silicon carbide (SiC) micro bullets were grown on a bio-carbon based charcoal substrate, the morphology and crystal structure were analyzed. In order to collect the crystallographic details scanning electron microscopy ... -
High-energy astrophysical neutrinos from interactions in the Local Bubble
(Journal article; Peer reviewed, 2020)A signal of high-energy extraterrestrial neutrinos was discovered by the IceCube experiment [1]. Neutrinos are always produced together with gamma-rays, but the gamma-ray flux from extra- galactic sources cascade down to ... -
Condensates and pressure of two-flavor chiral perturbation theory at nonzero isospin and temperature
(Peer reviewed; Journal article, 2021)We consider two-flavor chiral perturbation theory (χPT) at finite isospin chemical potential μI and finite temperature T . We calculate the effective potential and the quark and pion condensates as functions of T and μI ... -
The Impact of Thermal History on Water Adsorption in a Synthetic Nanolayered Silicate with Intercalated Li+ or Na+
(Peer reviewed; Journal article, 2020)For applications benefitting from the swelling properties of nanolayered silicates (clay minerals), it is of paramount importance to understand the hysteresis in the clay–water interaction. In this context, the present ... -
Reconfigurable Mechanical Anisotropy in Self-Assembled Magnetic Superstructures
(Peer reviewed; Journal article, 2021)Enhancement of mechanical properties in self-assembled superstructures of magnetic nanoparticles is a new emerging aspect of their remarkable collective behavior. However, how magnetic interactions modulate mechanical ... -
Single scattering of polarized light by correlated surface and volume disorder
(Peer reviewed; Journal article, 2020)We study light scattering by systems combining randomly rough surface and volume dielectric fluctuations. We introduce a general model including correlations between surface and volume disorders, and we study the scattering ... -
Extracellular vesicles in patients in the acute phase of psychosis and after clinical improvement: an explorative study
(Peer reviewed; Journal article, 2020)Extracellular vesicles (EVs) are cell-derived structures that transport proteins, lipids and nucleic acids between cells, thereby affecting the phenotype of the recipient cell. As the content of EVs reflects the status of ... -
Climatological Westward‐Propagating Semidiurnal Tides and Their Composite Response to Sudden Stratospheric Warmings in SuperDARN and SD‐WACCM‐X
(Peer reviewed; Journal article, 2021)Using the Super Dual Auroral Radar Network observations (clustered around 60°N) and NCAR CESM2.0 extended Whole Atmosphere Community Climate Model nudged with reanalyzes, we examine the climatology of semidiurnal tides in ... -
Alternative coalescence model for deuteron, tritium, helium-3 and their antinuclei
(Peer reviewed; Journal article, 2020)Antideuteron and antihelium nuclei have been proposed as a detection channel for dark matter annihilations and decays in the Milky Way, due to the low astrophysical background expected. To estimate both the signal for ...
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