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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

Rapid and sensitive quantification of cell-associated multi-walled carbon nanotubes

Steinmetz, Lukas ; Bourquin, Joel ; Barosova, Hana ; Haeni, Laetitia ; Caldwell, Jessica ; Milosevic, Ana ; Geers, Christoph ; Bonmarin, Mathias ; Taladriz-Blanco, Patricia ; Rothen-Rutishauser, Barbara ; Petri-Fink, Alke

In: Nanoscale, 2020, vol. 12, no. 33, p. 17362–17372

Evaluating nanomaterial uptake and association by cells is relevant for in vitro studies related to safe-by-design approaches, nanomedicine or applications in photothermal therapy. However, standard analytical techniques are time-consuming, involve complex sample preparation or include labelling of the investigated sample system with e.g. fluorescent dyes. Here, we explore lock-in...

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 ...