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Université de Fribourg

Synthesis and applications of nanocontainers and nanorattles

Abram, Sarah-Luise ; Yep, Philippe ; Fromm, Katharina M.

In: CHIMIA International Journal for Chemistry, 2019, vol. 73, no. 1, p. 12–16

Nanorattles and hollow nanocontainers have unique properties related to the presence of a void space inside the shell, which has been shown to improve the properties of materials for e.g. catalysis, drug release, sensor materials or lithium ion batteries. This article summarizes our recent progress in the synthesis of hollow silica, titania and ceria nanorattles and nanocontainers, eventually...

Université de Fribourg

Handling (nano)silver as antimicrobial agent: therapeutic window, dissolution dynamics, detection methods and molecular interactions

Abram, Sarah‐Luise ; Fromm, Katharina M.

In: Chemistry – A European Journal, 2020, vol. 26, no. 48, p. 10948–10971

Silver is an antimicrobial agent well known since antiquity. With the emergence of multiresistant bacteria, it has come back into the focus of research, and ionic as well as nano‐sized silver have been studied in vitro and in vivo. The results are controversial, silver being discussed as the “silver bullet” or a “wolf in sheep's clothing”. A thorough search of literature from...

Université de Fribourg

Ag Nanoencapsulation for Antimicrobial Applications

Abram, Sarah-Luise ; Gagnon, Jacinthe ; Priebe, Magdalena ; Hérault, Nelly ; Fromm, Katharina M.

In: CHIMIA International Journal for Chemistry, 2018, vol. 72, no. 4, p. 249–252

Biomaterial-related infections remain a significant challenge in medicine. Antimicrobial materials on the basis of Ag nanoparticles represent a promising solution for this issue. Therefore several Ag-containing nanocontainers and nanorattles have been synthesized and characterized that exhibit remarkable control over the release of Ag+ as antimicrobial active species. Their biological...

Consortium of Swiss Academic Libraries

On toric h -vectors of centrally symmetric polytopes

A'Campo-Neuen, Annette

In: Archiv der Mathematik, 2006, vol. 87, no. 3, p. 217-226

Haute Ecole d'Ingénierie

Développement et caractérisation d'un réacteur à lit fluidisé pour la culture de cellules animales = Entwicklung und Charakterisierung eines Fliessbettreaktor für die Kultur tierischer Zellen

Accetturo, Alessandro ; Eyer, Kurt (Dir.)

Mémoire de diplôme HES : Haute Ecole d'Ingénierie, 2008.

Objectif: La construction du système de culture cellulaire en lit fluidisé est un des objectifs de ce projet. La détermination de la quantité de cellules grâce à une corrélation avec la consommation d’oxygène est développée. Le but final du travail est d’exécuter une culture en continue et de caractériser les paramètres hydrodynamiques et de culture optimales. Résultats: Les...

Université de Fribourg

Mood effects after deep brain stimulation for Parkinson’s disease: an update

Accolla, Ettore A. ; Pollo, Claudio

In: Frontiers in Neurology, 2019, vol. 10, p. 617

Depression in Parkinson's Disease (PD) is a prevalent and invalidating symptom. Deep brain stimulation (DBS) allows for an improvement of PD motor features, but its effects on mood are difficult to predict. Here, we review the evidence regarding mood effects after DBS of either subthalamic nucleus (STN) or globus pallidus pars interna (GPi). Different influences of multiple factors contribute...

Université de Fribourg

Brain networks modulated by subthalamic nucleus deep brain stimulation

Accolla, Ettore A. ; Ruiz, Maria Herrojo ; Horn, Andreas ; Schneider, Gerd-Helge ; Schmitz-Hübsch, Tanja ; Draganski, Bogdan ; Kühn, Andrea A.

In: Brain, 2016, vol. 139, no. 9, p. 2503–2515

Deep brain stimulation of the subthalamic nucleus is an established treatment for the motor symptoms of Parkinson’s disease. Given the frequent occurrence of stimulation- induced affective and cognitive adverse effects, a better understanding about the role of the subthalamic nucleus in non-motor functions is needed. The main goal of this study is to characterize anatomical circuits...