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Updated: Jul 2, 2025

Characterizing Individual Protein Aggregates by Infrared Nanospectroscopy and Atomic Force Microscopy
Published on: September 12, 2019
Vibrational Optical Activity of Amyloid Fibrils
Zuzanna Majka1, Karolina Kwiecień1,2,3, Agnieszka Kaczor1
1Faculty of Chemistry, Jagiellonian University, 2 Gronostajowa Str., 30-387, Krakow, Poland.
Abstract:
Amyloid fibrils are supramolecular systems showing distinct chirality at different levels of their complex multilayered architectures. Due to the regular long-range chiral organization, amyloid fibrils exhibit the most intense Vibrational Optical Activity (VOA) signal observed up to now, making VOA techniques: Vibrational Circular Dichroism (VCD) and Raman Optical Activity (ROA) very promising tools to explore their structures, handedness and intricate polymorphism. This concept article reviews up-to-date experimental studies on VOA applications to investigate amyloid fibrils highlighting its future potential in analyzing of these unique supramolecular systems, in particular in the context of biomedicine and nanotechnology.
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