Dr. Sarah Chagri studied Biomedical Chemistry (B.Sc. and M.Sc.) at the Johannes Gutenberg University Mainz as well as at the University of Toronto, Canada. During her PhD at the Max Planck Institute for Polymer Research, she worked on bioresponsive nanomaterials for controlled intracellular assembly and graduated in 2024 with highest distinction (summa cum laude).

She is currently Scientific Coordinator for Graduate Education at the Max Planck Institute for Polymer Research, where she leads the graduate program. In addition, she serves as coordinator of the Max Planck Graduate Center with the Johannes Gutenberg University Mainz (MPGC).

Alongside her coordinating role, she remains actively involved in research. She works in the group of Tanja Weil on the development of bioresponsive peptides that form synthetic nanostructures inside cells and can modulate immune cell function.

Research Interests

Dr. Sarah Chagri’s research lies at the interface of chemical biology, supramolecular chemistry, and immunology, and addresses how cellular behavior can be controlled using synthetic molecular systems.

A central focus is the development of bioresponsive peptides that assemble into defined supramolecular nanostructures within living cells. Particular emphasis is placed on understanding structure-assembly-bioactivity relationships: how molecular design and supramolecular organization govern interactions with complex biological systems and determine functional outcomes.

These questions are explored especially in the context of immune cells, with the aim of identifying fundamental principles by which synthetic structures can influence intracellular processes, mechanical properties, and signaling pathways.

In the long term, this work aims to establish a rational design framework for functional, adaptive materials in biological systems and to enable new strategies for the targeted modulation of immune cell function.

Publications

1.
Journal Article
Chagri, S.; Fetzer, J.; Roth, P.; Lahu, A.; Alleva, N.; Zhang, J.; Wagner, M.; Si, S.; Lieberwirth, I.; Landfester, K. et al.; Ng, D. Y. W.; Weil, T.: Programming Nanostructure Formation Through Furin-Triggered Isopeptide Conversion and Peptide Self-Assembly. Macromolecular Bioscience 26 (1), e00427 (2026)
2.
Journal Article
Link, J.; Burg, L.; Chagri, S.; Nguyen, H.-C.; Ng, D. Y. W.; Ravoo, B. J.; Weil, T.: Photoswitchable Peptides as Molecular Tools to Encode Structural Order and Disorder in Intracellular Assemblies. Angewandte Chemie International Edition 65 (3), e14781 (2026)
3.
Journal Article
Link, J.; Burg, L.; Chagri, S.; Nguyen, H.-C.; Ng, D. Y. W.; Ravoo, B. J.; Weil, T.: Photoschaltbare Peptide als molekulare Werkzeuge zur Kodierung von Strukturordnung und -Unordnung in intrazellulären Aggregaten. Angewandte Chemie 138 (3), e14781 (2026)
4.
Journal Article
Chagri, S.; Maxeiner, K.; Silva, M. J.S.A.; Förch, L.; Link, J.; Roth, P.; Meyer, R.; Fetzer, J.; Kaltbeitzel, A.; Lieberwirth, I. et al.; Landfester, K.; Wagner, M.; Ng, D. Y. W.; Weil, T.: Intracellular Formation of Synthetic Peptide Nanostructures Causes Mitochondrial Disruption and Cell Death in Tumor Spheroids. Advanced Science 12 (25), 2412606 (2025)
5.
Journal Article
Giubertoni, G.; Chagri, S.; Argudo, P. G.; Prädel, L.; Maltseva, D.; Greco, A.; Caporaletti, F.; Pavan, A.; Ilie, I. M.; Ren, Y. et al.; Ng, D. Y. W.; Bonn, M.; Weil, T.; Woutersen, S.: Structural adaptability and surface activity of peptides derived from tardigrade proteins. Protein Science 33 (9), e5135 (2024)
6.
Review Article
Chagri, S.; Ng, D. Y. W.; Weil, T.: Designing bioresponsive nanomaterials for intracellular self-assembly. Nature Reviews Chemistry 6, pp. 320 - 338 (2022)
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