Sökning: "Surfaktant"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet Surfaktant.

  1. 1. Exploring alternative surfactants to replace PEG within lipid nanoparticles

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master); Lunds universitet/Bioteknik (CI); Lunds universitet/Bioteknik (master)

    Författare :Elina Edidovica; [2024]
    Nyckelord :Lipid nanoparticle; polyethelyne glycol PEG ; alpha-tomatine; N-hexadecyl beta d-maltoside HDM ; DOPC; DPPC; cholesterol; film hydration; stability study; DLS; Cryo-TEM; SAXS; pharmaceutical formulation; Chemistry;

    Sammanfattning : Over the past decade an increasing amount of studies has demonstrated that PEGylation not only precipitates reductions in drug delivery efficiency but also triggers the immune system to produce antibodies, specifically anti-PEG antibodies. The objective of my thesis is to explore alternative surfactants that could viably replace PEG within lipid nanoparticles. LÄS MER

  3. 2. Green Coacervates for Pharma and Food

    Master-uppsats, Lunds universitet/Livsmedelsteknik och nutrition (master)

    Författare :Izabella Imets; Andreas Vallin; [2022]
    Nyckelord :MSc; coacervate; biosurfactant; biopolymer; SAXS; DLS; elliposometry; pharmaceutical technology; Technology and Engineering;

    Sammanfattning : Anionic biosurfactant-cationic biopolymer systems were investigated to identify and characterize a coacervation window. The characterization of the systems was performed with dynamic light scattering, small angle x-ray scattering and in-situ ellipsometry. LÄS MER

  4. 3. Evaluation of PFAS removal from nanofiltration membrane concentrate using foam fractionation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :William Stefansson; [2022]
    Nyckelord :PFAS; Aeration foam fractionation; Nanofiltration membrane; DWTP; Surfactant; PFAS; Skumfraktionering; Nanofiltration; Vattenverk; Surfaktant;

    Sammanfattning : Per- and polyfluorinated substances (PFASs) have become an urgent topic in the water treatment industry in recent years as a consequence of new scientific discoveries of the correlation between the ingestion of some PFASs and their toxicity in humans and other organisms. PFASs are synthetic compounds present in a variety of products. LÄS MER

  5. 4. Magnetic Ionic Liquids in Solutions and Emulsions

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Simon Bruno; [2022]
    Nyckelord :ionic liquids; microemulsion; magnetic response; surfactant; co-surfactant; imidazolium cation; polarity; chain length effect; joniska vätskor; mikroemulsion; magnetisk respons; surfaktant; co-surfaktant; imidazoliumkatjon; polaritet; kedjelängdseffekt;

    Sammanfattning : This research thesis reports experimental work done to design a stable magneticmicroemulsion of ionic liquid in 2-ethylhexyl laurate with the help of an ionic surfactant andan alcohol co-surfactant. The ionic liquids tested were based on a 1,3-dialkylimidazoliumcation with different alkyl chain lengths and a tetrachloroferrate anion ([FeCl4]+) to ensure theemulsion is sensitive to applied magnetic fields. LÄS MER

  7. 5. Lungutveckling och surfaktant : lammets perinatala överlevnad

    Kandidat-uppsats, SLU/Dept. of Anatomy, Physiology and Biochemistry

    Författare :Sara Folkesson; [2017]
    Nyckelord :lungembryologi; ovin; får; surfaktant;

    Sammanfattning : En lamning kräver ofta en hel del arbete av tackan och ibland även av djurägaren innan lammet piggnar till efter födseln och kan ta sig upp på egna ben för att dia. Komplikationer vid lamning är inte helt ovanligt och kan göra processen lång, uttröttande och smärtsam för både tacka och lamm. LÄS MER