Essays about: "gels"

Showing result 21 - 25 of 51 essays containing the word gels.

  1. 21. Stability testing of all-trans-retinol in an experimental cosmetic formulation and in methanol and methanol containing butylhydroxytoluene (BHT) using reversed-phase HPLC

    University essay from KTH/Kemi

    Author : Ena Iglebaek Herceglija; [2021]
    Keywords : retinol; vitamin A; stability; antioxidant; cosmetic formulation; retinol; vitamin A; stabilitetstestning; antioxidant; kosmetika;

    Abstract : All-trans-retinol (vitamin A) används ofta som en aktiv ingrediens i kosmetiska produkter på grund av dess kliniskt validerade anti-age-egenskaper. Däremot är användningen av all-trans-retinol i kosmetiska formuleringar begränsad till följd av den kemiska stabiliteten av all-trans-retinol som påverkas av värme, syre, ljus och syror. READ MORE

  3. 22. Microgels as drug carriers : Relationship between release kinetics and self-aggregation of the amphiphilic drugs adiphenine, pavatrine and diphenhydramine.

    University essay from Uppsala universitet/Institutionen för läkemedelskemi

    Author : Lobna Ali Mohsen; [2021]
    Keywords : Amphiphilic drugs; small angle x-ray scattering; macrogels; binding isotherm; CMC; self-aggregation; phase structure; micelles.;

    Abstract : Abstract There has been great interest in microgels as drug carriers within the pharmaceutical industry. This includes the use of amphiphilic drugs for treating conditions such as depression, allergies, and cancer. READ MORE

  4. 23. Polymer Directed Engineering of Novel Cellulose Network

    University essay from KTH/Fiber- och polymerteknologi

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

    Abstract : 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. READ MORE

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

    University essay from Uppsala universitet/Polymerkemi

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

    Abstract : 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. READ MORE

  6. 25. Analyzing potato protein isolates for their potential in developing meat analogues

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Jade Yu Lan Schut; [2020]
    Keywords : potato protein isolates; meat analogues; meat alternatives; rapid visco analyzer; high moisture extrusion; textured vegetable proteins; food technology; livsmedelsteknologi; Agriculture and Food Sciences; Technology and Engineering;

    Abstract : To keep up with the rapidly increasing global population, a significant increase in production of protein foods is required. The environmental impact of the meat industry, in combination with consumer awareness, calls for this food production to become more sustainable. READ MORE