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This study investigates the mechanical properties of colon cancer cells through Brillouin microscopy, focusing on the differentiation between wild-type (WT) and CRISPR-modified cells. Brillouin microspectroscopy, a non-invasive technique,…

Biological Physics · Physics 2025-07-09 Mykyta Kizilov , Vsevolod Cheburkanov , Vladislav V. Yakovlev

The biomechanical properties of cells and tissues play an important role in our fundamental understanding of the structures and functions of biological systems at both the cellular and subcellular levels. Recently, Brillouin microscopy,…

Many problems in mechanobiology urgently require characterisation of the micromechanical properties of the fibrous proteins of cells and tissues. Brillouin light scattering has been proposed as a new optical elastography technique to meet…

The role and importance of mechanical properties of cells and tissues in cellular function, development as well as disease has widely been acknowledged, however standard techniques currently used to assess them exhibit intrinsic…

Biological Physics · Physics 2019-01-09 Robert Prevedel , Alba Diz-Muñoz , Giancarlo Ruocco , Giuseppe Antonacci

Characterizing the micromechanical properties of cells and extracellular matrices is critical in mechanobiology. To meet this need, Brillouin light scattering (BLS) has emerged as a noncontact, high-resolution elastography tool that probes…

Brillouin imaging is increasingly recognized to be a powerful technique that enables non-invasive measurement of the mechanical properties of cells and tissues on a microscopic scale. This provides an unprecedented tool for investigating…

Biological Physics · Physics 2020-01-22 Christine Poon , Joshua Chou , Michael Cortie , Irina Kabakova

Brillouin microscopy is an emerging optical elastography technique that can be used to assess mechanical properties of biological samples in a 3D, all-optical and hence non-contact fashion. However, the low cross-section of spontaneous…

Optics · Physics 2024-09-04 Carlo Bevilacqua , Robert Prevedel

Brillouin microscopy is an emerging technique for all-optical biomechanical imaging without the need for physical contact with the sample or for an external mechanical stimulus. However, Brillouin microscopy often retrieves a single,…

Optics · Physics 2024-02-27 Roni Shaashoua , Tal Levy , Barak Rotblat , Alberto Bilenca

Brillouin light scattering spectroscopy (BLS) is applied to study the micromechanics of cellulosic viscose fibers, one of the commercially most important, man-made biobased fibers. Using an equal angle scattering geometry, we provide a…

This study investigates the biomechanical properties of breast cancer cells, focusing on the invasive MDA-MB-231 and non-invasive MCF-7 cell lines, using phase-shifting digital holographic microscopy and an acousto-holographic system for…

Probing forces, deformations and generally speaking the mechanical properties of cells is the hallmark of mechanobiology. In the last two decades many techniques have been developed to this end that are largely based on deforming the cells…

Brillouin spectroscopy was used to probe the viscoelastic properties of E. coli bacterial cell lysate in aqueous solution at GHz-frequencies over the range -5.0 $^\circ$C $\leq T \leq$ 50.0 $^\circ$C. This work offers a first temperature…

Soft Condensed Matter · Physics 2023-11-13 D. F. Hanlon , S. Heravi , V. Booth , G. T. Andrews

Brillouin microscopy is an emerging label-free imaging technique to assess local viscoelastic properties. Quantum-enhanced stimulated Brillouin scattering is demonstrated for the first time using low power continuous-wave lasers at 795~nm.…

Optics · Physics 2024-09-16 Tian Li , Fu Li , Xinghua Liu , Vladislav V. Yakovlev , Girish S. Agarwal

Brillouin Light Scattering is a powerful technique to measure the microwave excitations present in a magnetic system. In microfocused mode, the light is focused on the sample using a microscope objective. This accelerates substantially the…

Mesoscale and Nanoscale Physics · Physics 2025-06-30 Nessrine Benaziz , Thibaut Devolder , Jean-Paul Adam

Recent years witnessed much broader use of Brillouin inelastic light scattering spectroscopy for the investigation of phonons and magnons in novel materials, nanostructures, and devices. Driven by developments in instrumentation and the…

Applied Physics · Physics 2020-11-18 Fariborz Kargar , Alexander A. Balandin

Brillouin spectroscopy is a century-old technique that has recently received renewed interest, as modern instrumentation has transformed it into a powerful contactless and label-free probe of micromechanical properties for biomedical…

Instrumentation and Detectors · Physics 2020-05-27 YuChen Xiang , Carin Basirun , Joshua Chou , Majid E. Warkiani , Peter Török , Yingying Wang , Shoufei Gao , Irina V. Kabakova

Brillouin microscopy measures compressibility, but is being increasingly used to assess stiffness of cells and tissues. Using hydrogels with tunable properties, we demonstrate that Brillouin microscopy is insensitive to stiffness of…

Quantitative Methods · Quantitative Biology 2018-11-30 Pei-Jung Wu , Irina Kabakova , Jeffrey Ruberti , Joseph M. Sherwood , Iain E. Dunlop , Carl Paterson , Peter Török , Darryl R. Overby

Brillouin spectroscopy and imaging are emerging techniques in analytical science, biophotonics and biomedicine. They are based on Brillouin light scattering from acoustic waves or phonons in the GHz range, providing a nondestructive…

Biological Physics · Physics 2021-10-12 Francesca Palombo , Daniele Fioretto

Noncontact label-free biomechanical imaging is a crucial tool for unraveling the mechanical properties of biological systems, which play critical roles in the fields of engineering, physics, biology and medicine; yet, it represents a…

Biological Physics · Physics 2020-09-29 Itay Remer , Netta Shemsesh , Anat Ben-Zvi , Alberto Bilenca

Cellular microrheology has shown that cancer cells with high metastatic potential are softer compared to non-tumorigenic normal cells. These findings rely on measuring the apparent Young modulus of whole cells using primarily atomic force…

Biological Physics · Physics 2024-03-19 Marie Dessard , Jean-Baptiste Manneville , Jean-François Berret
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