Wavelength-encoded laser particles for massively multiplexed cell tagging.
IF: 39.728
Cited by: 95


Large-scale single-cell analyses have become increasingly important given the role of cellular heterogeneity in complex biological systems. However, no current techniques enable optical imaging of uniquely-tagged individual cells. Fluorescence-based approaches can only distinguish a small number of distinct cells or cell groups at a time because of spectral crosstalk between conventional fluorophores. Here we investigate large-scale cell tracking using intracellular laser particles as imaging probes that emit coherent laser light with a characteristic wavelength. Made of silica-coated semiconductor microcavities, these laser particles have single-mode emission over a broad range from 1170 to 1580 nm with sub-nm linewidths, enabling massive spectral multiplexing. We explore the stability and biocompatibility of these probes in vitro and their utility for wavelength-multiplexed cell tagging and imaging. We demonstrate real-time tracking of thousands of individual cells in a 3D tumour model over several days showing different behavioural phenotypes.


Spatial Transcriptomics


Martino, Nicola
Kwok, Sheldon J J
Liapis, Andreas C
Forward, Sarah
Jang, Hoon
Kim, Hwi-Min
Wu, Sarah J
Wu, Jiamin
Dannenberg, Paul H
Jang, Sun-Joo
Lee, Yong-Hee
Yun, Seok-Hyun

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