Sökning: "enzymatic crosslinking"

Hittade 4 uppsatser innehållade orden enzymatic crosslinking.

  1. 1. Deacetylated Hyaluronan : Exploration of deacetylation techniques for hyaluronan (oligo and polysaccharides)

    Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Sima Mardini; Hanna Björk; Marcus Möller; Carl Lagergren; Oscar Samuelsson; [2023]
    Nyckelord :hyaluronic acid; deacetylated hyaluronan; N-deacetylation; re-acetylation; hydrogels;

    Sammanfattning : Hyaluronic acid is an organic polysaccharide with a wide range of uses in medical and cosmetic industries due to its physiological properties. Crosslinked hyaluronic acid is a commonly used filler agent because of its water retention capabilities. N-deacetylation can be performed to enable new derivatives of hyaluronic acid. LÄS MER

  3. 2. Functional Bio-based Copolyesters: Properties and Abilities

    Master-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Fika Andriani; [2022]
    Nyckelord :Ring-opening copolymerization; epoxide; anhydride; crosslinked; degradation; Ringöppningssampolymerisation; epoxid; anhydrid; tvärbundet; nedbrytning;

    Sammanfattning : Genom ringöppningssampolymerisation av utvalda epoxider och anhydrider möjliggjordes en enkel strategi för att syntetisera funktionella sampolymerer. Sampolymererna hade förmågan att bilda tvärbundna material, och var dessutom benägna för både hydrolytisk och enzymatisk nedbrytning. LÄS MER

  4. 3. Comparison of Corn and Rye Arabinoxylans for the Production of Bio-based Materials

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Chen Chen; [2020]
    Nyckelord :cereal bran; subcritical water extraction; arabinoxylans; enzymatic crosslinking; hydrogel; spannmålskli; extraktion av subkritiskt vatten; arabinoxylaner; enzymatisk tvärbindning; hydrogel;

    Sammanfattning : Enzymes and subcritical water can be used for the extraction of hemicelluloses from cereal by-products, making the processes eco-friendly. The polysaccharides extracted from cereal by-products can be used as matrices for development of materials for various applications. LÄS MER

  5. 4. Isocyanate-free polyurethane from cyclic carbonates : Synthesis, application and evaluation

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Christoffer Wallerek; [2016]
    Nyckelord :Isocyanate; polyurethane; cyclic; carbonate; NIPU; polymer; PU; polymer technology; Technology and Engineering; Chemistry;

    Sammanfattning : Polyurethane is a widely used polymer with a lot of different applications due to its versatility and often resilient properties. The polymeris often prepared as a two component system consisting of polyols and isocyanates and can be cured at relatively low temperatures. LÄS MER