Université de Fribourg

Detection of HER2+ breast cancer cells using bioinspired DNA-based signal amplification

Rafiee, Sarah D. ; Kocabey, Samet ; Mayer, Michael ; List, Jonathan ; Rüegg, Curzio

In: ChemMedChem, 2020, vol. 15, no. 8, p. 661-666

Circulating tumor cells (CTC) are promising biomarkers for metastatic cancer detection and monitoring progression. However, detection of CTCs remains challenging due to their low frequency and heterogeneity. Herein, we report a bioinspired approach to detect individual cancer cells, based on a signal amplification cascade using a programmable DNA hybridization chain reaction (HCR) circuit. We...

Université de Fribourg

A rational and iterative process for targeted nanoparticle design and validation

Rodriguez-Lorenzo, Laura ; Rafiee, Sarah D. ; Reis, Corine ; Milosevic, Ana ; Moore, Thomas L. ; Balog, Sandor ; Rothen-Rutishauser, Barbara ; Rüegg, Curzio ; Petri-Fink, Alke

In: Colloids and Surfaces B: Biointerfaces, 2018, vol. 171, p. 579–589

The lack of understanding of fundamental nano-bio interactions, and difficulties in designing particles stable in complex biological environments are major limitations to their translation into biomedical clinical applications. Here we present a multi- parametric approach to fully characterize targeted nanoparticles, and emphasizes the significant effect that each detail in the synthetic...