Measuring cell displacements in opaque tissues: dynamic light scattering in the multiple scattering regime.
Journal
Biomedical optics express
ISSN: 2156-7085
Titre abrégé: Biomed Opt Express
Pays: United States
ID NLM: 101540630
Informations de publication
Date de publication:
01 Apr 2020
01 Apr 2020
Historique:
received:
21
01
2020
revised:
13
03
2020
accepted:
25
03
2020
entrez:
29
4
2020
pubmed:
29
4
2020
medline:
29
4
2020
Statut:
epublish
Résumé
Coherent light scattered by tissues brings structural and dynamic information, at depth, that standard imaging techniques cannot reach. Dynamics of cells or sub-cellular elements can be measured thanks to dynamic light scattering in thin samples (single scattering regime) or thanks to diffusive wave spectroscopy in thick samples (diffusion regime). Here, we address the intermediate regime and provide an analytical relationship between scattered light fluctuations and the distribution of cell displacements as a function of time. We illustrate our method by characterizing cell motility inside half millimeter thick multicellular aggregates.
Identifiants
pubmed: 32341883
doi: 10.1364/BOE.388360
pii: 388360
pmc: PMC7173902
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2277-2297Informations de copyright
© 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement.
Déclaration de conflit d'intérêts
The authors declares no conflict of interest.
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