Physics - Lighting Up Heart Cells with Tiny Lasers

Lighting Up Heart Cells with Tiny Lasers
May 11, 2021•
Physics 14, 71
A new microscopy technique that uses micrometer-sized lasers can track beating-induced changes in a heart cell’s refractive index.
M. Schubert/University of St Andrews
Micrometer-sized lasers placed inside heart cells can track the beating of these dynamics systems.
M. Schubert/University of St Andrews
Micrometer-sized lasers placed inside heart cells can track the beating of these dynamics systems.×
No easy method exists for imaging single cells inside live animals. Marcel Schubert of the University of St Andrews, UK, hopes his newly demonstrated technique could change that. In a talk at the Optical Society's Biophotonics Conference last month, Schubert discussed how he and his colleagues have tracked the beating of heart cells using micrometer- and nanometer-sized lasers placed directly inside the cells. The lasers could allow researchers to monitor the dynamics of cells deep inside live tissues.

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