Sökning: "surfactants cationic"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden surfactants cationic.

  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. The influence of salt in the formation of carboxylic functionalized mesoporous silica

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Ruiyu Lin; [2012]
    Nyckelord :Nanokemi; Chemistry;

    Sammanfattning : Popular summary This master thesis was focused on the influence of salt, such as NaCl and CaCl2, in the formation of carboxylic functionalized mesoporous silica materials. Mesoporous silica materials are one type of porous materials with a pore size between 2 and 5 nm (1݊݉ = 0.000000001 ݉ ). LÄS MER

  7. 5. Investigation of the micelle-to-vesicle transition in mixtures of an anionic and a cationic surfactant: the effect of adding salt

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Josefine Leifsdotter; [2012]
    Nyckelord :SDS; DDAB; NaBr; Static light scattering; cryo-TEM; drug delivery; perforated vesicles; Krafft point;

    Sammanfattning : Catanoinic systems spontaneously form micelles and vesicles, which are self-assembled spherical structures made up by surfactants. In the core of the micelle a drug, or other organic substance, can be kept to stabilize it when placed in an aqueous environment. LÄS MER