Collective vibrations probe tissue biomechanics on a micro-scale through Brillouin scattering spectroscopy (Conference Presentation)

Francesca Palombo

doi:10.1117/12.2546389

9 March 2020 Collective vibrations probe tissue biomechanics on a micro-scale through Brillouin scattering spectroscopy (Conference Presentation)

Francesca Palombo

Author Affiliations +

Proceedings Volume 11242, Optical Elastography and Tissue Biomechanics VII; 112420I (2020) https://doi.org/10.1117/12.2546389
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Biological tissues have complex structures, dynamics and interactions between their constituents. When probing mechanical properties, differences are observed across spatial and temporal scales owing to the tissue viscoelastic response. Quasistatic mechanical testing, ultrasound and AFM-based techniques provide the traditional approach to measure stiffness based on the Young’s modulus. A novel technique in the fields of biophotonics and biomechanics is Brillouin spectroscopy, which is a contactless optical method to detect viscoelastic properties from the propagation of thermally-driven acoustic waves or phonons at high frequencies, GHz. A longitudinal elastic modulus is detected, whose significance in mechanobiology and clinical settings is currently emerging.

Conference Presentation

Citation Download Citation

Francesca Palombo "Collective vibrations probe tissue biomechanics on a micro-scale through Brillouin scattering spectroscopy (Conference Presentation)", Proc. SPIE 11242, Optical Elastography and Tissue Biomechanics VII, 112420I (9 March 2020); https://doi.org/10.1117/12.2546389

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