Sökning: "Hydrogels"

Visar resultat 11 - 15 av 36 uppsatser innehållade ordet Hydrogels.

  1. 11. Research on the viability of the use of rigid gels for the cleaning of water-gilded surfaces

    Master-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Ana Vega Ramiro; [2021-10-01]
    Nyckelord :Water-gilding; Gels; Agar-Agar; Borax; SEM;

    Sammanfattning : As the Getty Institute of conservation and other researchers said, studies are absent regarding cleaning gilded surfaces. These surfaces are extraordinarily complex to clean due to their water-sensitive nature. LÄS MER

  3. 12. Evaluation of Wet Spinning of Fungal and Shellfish Chitosan for Medical Applications

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Ghasem Mohammadkhani; [2021]
    Nyckelord :Chitosan fiber; Fungal fiber; Wet spinning; Hydrogel; Suture applications;

    Sammanfattning : The aim of this project was to address the food waste problem, particularly bread waste, to some extent by producing monofilaments obtained from wet spinning of fungal hydrogel through the cultivation of Rhizopus delemar on bread waste. The project had two phases. LÄS MER

  4. 13. Polymer Directed Engineering of Novel Cellulose Network

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Christel Gradin; Adina Landström; Julia Szecsödy; [2021]
    Nyckelord :Hydrogel; Carboxylated CNF; TEMPO-oxidation; bis-MPA ammonium dendrimer; Polymer salt bridge; Rheology;

    Sammanfattning : This study investigated a CNF/dendrimer hydrogel and how different concentrations of the carboxylated CNF and bis-MPA ammonium dendrimer affected the hydrogels’ rheological properties. A third generation bis-MPA ammonium dendrimer was diffused into a dispersion of carboxylated cellulose nanofibrils. LÄS MER

  5. 14. Negative energy elasticity and a model for the behavior of the residual strain in doubly cross-linked gels fabricated by shear strain

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Polymerkemi

    Författare :Therese You; [2020]
    Nyckelord :Polymer gel; Tetra-PEG; hydrogels; doubly cross-linked gels; shear modulus; energy elasticity;

    Sammanfattning : Doubly cross-linked gels were fabricated based on tetra-poly(ethylene glycol) (Tetra-PEG) by shear strain. These are gels with two network structures present in the same polymeric network. The second network structure is introduced by applying a mechanical field to the first natural network structure. LÄS MER

  7. 15. Tuning the crosslinking chemistry for self-healable mucin hydrogel synthesis and application

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

    Författare :Francesca Pacella; [2020]
    Nyckelord :Mucin; Hydrogel; Click-chemistry; Characterization; Self-healing; Injectable; Hydrogeler; Mucin; självhelande;

    Sammanfattning : Immune-orchestrating biomaterials that precisely modulate the immune reac-tion to the host could lead the way for improving the implantation outcomein the transplantation field, in comparison to passive biomaterials. The lab-oratory of Dr. LÄS MER