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    Université de Fribourg

    Nanostructure generation during milk digestion in presence of a cell culture model simulating the small intestine

    Hempt, Claudia ; Gontsarik, Mark ; Buerki-Thurnherr, Tina ; Hirsch, Cordula ; Salentinig, Stefan

    In: Journal of Colloid and Interface Science, 2020, vol. 574, p. 430–440

    Hypothesis: The development of advanced oral delivery systems for bioactive compounds requires the fundamental understanding of the digestion process within the gastrointestinal tract. Towards this goal, dynamic invitro digestion models, capable of characterising the molecular as well as colloidal aspects of food, together with their biological interactions with relevant invitro cell culture...

    Université de Fribourg

    Internal lamellar and inverse hexagonal liquid crystalline phases during the digestion of krill and astaxanthin oil-in-water emulsions

    Yaghmur, Anan ; Lotfi, Saleh ; Ariabod, Sarah Atoussa ; Bor, Gizem ; Gontsarik, Mark ; Salentinig, Stefan

    In: Frontiers in Bioengineering and Biotechnology, 2019, vol. 7, p. -

    Krill oil represents an important alternative natural source of omega-3 (ω-3) polyunsaturated fatty acids (PUFAs). Considering the beneficial health effects of these essential fatty acids, particularly in various disorders including cancer, cardiovascular, and inflammation diseases, it is of paramount importance to gain insight into the digestibility of krill oil. In this work, we study the...

    Université de Fribourg

    pH-responsive nano-self-assemblies of the anticancer drug 2-hydroxyoleic acid

    Prajapati, Rama ; Gontsarik, Mark ; Yaghmur, Anan ; Salentinig, Stefan

    In: Langmuir, 2019, vol. 35, no. 24, p. 7954–7961

    pH-responsive lipid nanocarriers have the potential to selectively target the acidic extracellular pH environment of cancer tissues and may further improve the efficacy of chemotherapeutics by minimizing their toxic side-effects. Here, we present the design and characterization of pH-sensitive nano-self-assemblies of the poorly water-soluble anticancer drug 2-hydroxyoleic acid (2OHOA) with...

    Université de Fribourg

    Multifunctional nano‐biointerfaces: cytocompatible antimicrobial nanocarriers from stabilizer‐free cubosomes

    Zabara, Mahsa ; Senturk, Berna ; Gontsarik, Mark ; Ren, Qun ; Rottmar, Markus ; Maniura-Weber, Katharina ; Mezzenga, Raffaele ; Bolisetty, Sreenath ; Salentinig, Stefan

    In: Advanced Functional Materials, 2019, p. 1904007

    The rational design of alternative antimicrobial materials with reduced toxicity toward mammalian cells is highly desired due to the growing occurrence of bacteria resistant to conventional antibiotics. A promising approach is the design of lipid‐based antimicrobial nanocarriers. However, most of the commonly used polymer‐stabilized nanocarriers are cytotoxic. Herein, the design of a...