Blar i Vitenskapelige publikasjoner (TN-IKBM) på emneord "VDP::Matematikk og Naturvitenskap: 400"
Viser treff 21-40 av 46
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Mechanical, barrier, antioxidant and antimicrobial properties of alginate films: Effect of seaweed powder and plasma-activated water
(Peer reviewed; Journal article, 2022)The incorporation of natural fillers such as seaweed may potentially enhance the properties of biopolymer films. In this study, we investigated the effect of seaweed powder as a bio-filler in alginate-based films at different ... -
The molecular dialog between oomycete effectors and their plant and animal hosts
(Peer reviewed; Journal article, 2022)Oomycetes form a phylogenetically distinct group of eukaryotic microorganisms that include some of the most notorious pathogens of plants and animals. Through the deployment of a remarkably diverse array of effector proteins, ... -
Nitrogen doped Carbon Nanotubes as Electrocatalyst for Oxygen Reduction Reaction
(Peer reviewed; Journal article, 2019)The oxygen reduction reaction on nitrogen doped multiwalled carbon nanotubes (N-MCNTs) is studied for its application for deoxygenation of seawater. N-MCNTs were synthesized using commercial MCNTs and polyaniline as nitrogen ... -
Non-Amide Polymers as Kinetic Hydrate Inhibitors-Maleic Acid/ Alkyl Acrylate Copolymers and the Effect of pH on Performance
(Peer reviewed; Journal article, 2021)Kinetic hydrate inhibitors (KHIs) have been used for over 25 years to prevent gas hydrate formation in oil and gas production flow lines. The main component in KHI formulations is a water-soluble polymer with many amphiphilic ... -
Nonpolymeric Citramide-Based Kinetic Hydrate Inhibitors: Good Performance with Just Six Alkylamide Groups
(Peer reviewed; Journal article, 2022)The use of kinetic hydrate inhibitors (KHIs) is a well-known method for preventing gas hydrate formation in oil and gas production flow lines. The main ingredient in KHI formulations is one or more polymers with amphiphilic ... -
N‑Oxide Polyethers as Kinetic Hydrate Inhibitors: Side Chain Ring Size Makes the Difference
(Peer reviewed; Journal article, 2021)The formation of gas hydrates in flow lines is one of the most severe problems for flow assurance in the gas and oil industry. Developing effective kinetic hydrate inhibitors (KHIs) to avoid the problem of gas hydrate ... -
N‑Vinyl Caprolactam/Maleic-Based Copolymers as Kinetic Hydrate Inhibitors: The Effect of Internal Hydrogen Bonding
(Peer reviewed; Journal article, 2022)Kinetic hydrate inhibitors (KHIs) have been used for over 25 years to prevent gas hydrate formation in oil and gas production flow lines, but they are some of the most expensive oilfield production chemicals. The main ... -
Oxyvinylenelactam Polymers-A New Class of Lactam-Based Kinetic Hydrate Inhibitor Polymers
(Peer reviewed; Journal article, 2022)The deployment of kinetic hydrate inhibitors (KHIs) is a chemical method for the prevention of gas hydrate plugging in gas, condensate, and oil production flow lines. Polymers made using the monomer N-vinylcaprolactam ... -
Phosphonated Lower-Molecular-Weight Polyethyleneimines as Oilfield Scale Inhibitors: An Experimental and Theoretical Study
(Peer reviewed; Journal article, 2022)For many years, amino methylenephosphonate (-CH2-N-PO3H2)-based scale inhibitors (SIs) have been deployed for preventing various scales in the oil and gas industry, particularly for squeeze treatment applications. However, ... -
Photodegradable Antimicrobial Agents: Synthesis and Mechanism of Degradation
(Peer reviewed; Journal article, 2022)As a strategy to inactivate antimicrobial agents after use, we designed a range of ethanolamine derivatives where four of them possessed interesting activity. The ethanolamine moiety facilitates photodecomposition, which ... -
Photodegradable Antimicrobial Agents: Towards Structure Optimization
(Peer reviewed; Journal article, 2023)Antibiotic resistance continues to be an ominous threat facing human health globally and urgent action is required to limit the loss of human life. The pollution of antibiotics into the environment is one of the drivers ... -
Potential of microalgae as a sustainable feed ingredient for aquaculture
(Peer reviewed; Journal article, 2021-09)An increase in fish consumption, combined with a decrease in wild fish harvest, is driving the aquaculture industry at rapid pace. Today, farmed seafood accounts for about half of all global seafood demand for human ... -
Quantification by LC–MS/MS of astragaloside IV and isoflavones in Astragali radix can be more accurate by using standard addition
(Peer reviewed; Journal article, 2020)Introduction Astragali radix (AR), the root of Astragalus, is an important medical herb widely used in traditional Chinese medicine. Bioactive components include isoflavones and a unique class of triterpenoid saponins ... -
Reliability and Performance of Vinyl Lactam-Based Kinetic Hydrate Inhibitor Polymers after Treatment under a Range of Conditions
(Peer reviewed; Journal article, 2021)Well-known kinetic hydrate inhibitors (KHIs) such as poly(N-vinylcaprolactam) (PVCap), poly(N-vinylpyrrolidone) (PVP), and 1:1 N-vinylcaprolactam:N-vinylpyrrolidone (VCap:VP) copolymer have been subjected to a range of ... -
A review on energy and cost effective phase separated pretreatment of biosolids
(Peer reviewed; Journal article, 2021-06)Extracellular Polymeric Substances (EPS) existent in anaerobic sludge proves to be a barrier for sludge liquefaction and biomass lysis efficiency. Hence EPS deaggregation heightens the surface area for the subsequent ... -
Salting-Out Assisted Liquid-Liquid Extraction for UPLC-MS/MS Determination of Thyroxine and Steroid Hormones in Human Serum and Fish Plasma
(Peer reviewed; Journal article, 2023)Measuring the level of steroid and thyroxine hormones is key to understanding organism health conditions. Liquid chromatography coupled with tandem mass spectrometry has become the method of choice for such hormone analyses ... -
Spatial and temporal axes impact ecology of the gut microbiome in juvenile European lobster (Homarus gammarus)
(Peer reviewed; Journal article, 2019)Microbial communities within the gut can markedly impact host health and fitness. To what extent environmental influences affect the differential distribution of these microbial populations may therefore significantly ... -
Spent coffee grounds anaerobic digestion: Investigating substrate to inoculum ratio and dilute acid thermal pretreatment
(Peer reviewed; Journal article, 2022)Spent coffee grounds have the potential of being used in further bioprocesses to produce materials and fuels. In Norway, the relative abundance and ease of collection of this waste substrate make it a candidate for ... -
A strategy to characterize chlorophyll protein interaction in LIL3
(Peer reviewed; Journal article, 2019)The function of proteins is at large determined by cofactors selectively bound to protein structure. Without chlorophyll specifically bound to protein, light harvesting and photosynthesis would not be possible. The binding ... -
Synergy Effect Study of Poly(N-isoacrylamide) with Tetra Butyl Phosphonium Bromide on Methane Hydrate Formation
(Journal article, 2019)Natural gas hydrate plugging is one of the costly and challenging problems for the oil and gas industry, especially for subsea fields. One way to prevent gas hydrate formation at low cost is the use of low-dosage hydrate ...