Ergebnisse einschränken

Dokumententyp

Sprache

Consortium of Swiss Academic Libraries

Fracture toughness evaluation of bituminous binders at low temperatures

Bueno, M. ; Hugener, M. ; Partl, M.

In: Materials and Structures, 2015, vol. 48, no. 9, p. 3049-3058

Université de Fribourg

New approach for time-resolved and dynamic investigations on nanoparticles agglomeration

Anaraki, Neda Iranpour ; Sadeghpour, Amin ; Iranshahi, Kamran ; Toncelli, Claudio ; Cendrowska, Urszula ; Stellacci, Francesco ; Dommann, Alex ; Wick, Peter ; Neels, Antonia

In: Nano Research, 2020, vol. 13, no. 10, p. 2847–2856

Nanoparticle (NP) colloidal stability plays a crucial role in biomedical application not only for human and environmental safety but also for NP efficiency and functionality. NP agglomeration is considered as a possible process in monodispersed NP colloidal solutions, which drastically affects colloidal stability. This process is triggered by changes in the physicochemical properties of the...

Université de Fribourg

Responsive nanofibers with embedded hierarchical lipid self-assemblies

Tien, Nguyen D. ; Maurya, Anjani K. ; Fortunato, Giuseppino ; Rottmar, Markus ; Zboray, Robert ; Erni, Rolf ; Dommann, Alex ; Rossi, René M. ; Neels, Antonia ; Sadeghpour, Amin

In: Langmuir, 2020, vol. 36, no. 40, p. 11787–11797

We introduce the design and study of a hybrid electrospun membrane with a dedicated nanoscale structural hierarchy for controlled functions in the biomedical domain. The hybrid system comprises submicrometer-sized internally self-assembled lipid nanoparticles (ISAsomes or mesosomes) embedded into the electrospun membrane with a nanofibrous polymer network. The internal structure of ISAsomes, ...

Université de Fribourg

Monolithic resorcinol–formaldehyde alcogels and their corresponding nitrogen-doped activated carbons

Civioc, Romain ; Lattuada, Marco ; Koebel, Matthias M. ; Galmarini, Sandra

In: Journal of Sol-Gel Science and Technology, 2020, vol. 95, no. 3, p. 719–732

Here we report the adaptation of formaldehyde crosslinked phenolic resin-based aerogel and xerogel synthesis to ethanol-based solvent systems. Three specific formulations, namely one resorcinol–formaldehyde (RF) and two resorcinol– melamine–formaldehyde (RMF) systems were studied. As-prepared resins were characterized in terms of envelope and skeletal density. Furthermore, resin samples ...

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

Colloidal transformations in ms2 virus particles: driven by ph, influenced by natural organic matter

Watts, Samuel ; Julian, Timothy R. ; Maniura-Weber, Katharina ; Graule, Thomas ; Salentinig, Stefan

In: ACS Nano, 2020, vol. 14, no. 2, p. 1879–1887

Enteric viruses, such as enterovirus, norovirus, and rotavirus, are among the leading causes of disease outbreaks due to contaminated drinking and recreational water. Viruses are difficult to remove from water through filtration based on physical size exclusion—for example by gravity-driven filters—due to their nanoscale size. To understand virus removal in drinking water treatment ...