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Università della Svizzera italiana

Conformational dynamics and stability of U-shaped and S-shaped amyloid β assemblies

Grasso, Gianvito ; Rebella, Martina ; Muscat, Stefano ; Morbiducci, Umberto ; Tuszynski, Jack ; Danani, Andrea ; Deriu, Marco A.

In: International journal of molecular sciences, 2018, vol. 19, no. 2, p. 571

Alzheimer’s disease is the most fatal neurodegenerative disorder characterized by the aggregation and deposition of Amyloid β (Aβ) oligomers in the brain of patients. Two principal variants of Aβ exist in humans: Aβ1–40 and Aβ1–42. The former is the most abundant in the plaques, while the latter is the most toxic species and forms fibrils more rapidly. Interestingly, fibrils of...

Université de Fribourg

Protein amyloid fibrils as template for the synthesis of silica nanofibers, and their use to prepare superhydrophobic, lotus-like surfaces

Rima, Simonetta ; Lattuada, Marco

In: Small, 2018, vol. 14, no. 46, p. 1802854

In this work, amyloid fibrils are used as a template for the preparation of long silica fibers, with a variety of aspect ratios and surface roughness. Starting with β‐ lactoglobulin fibrils with typical diameters of about 20 nm and a length of several micrometers, two different strategies are followed to grow silica: either in water at acidic pH values, or in ethanol–water mixtures under...