Abstract
Although diverse endogenous biomolecules involved in life processes are of major interest in cell biology, there is still a lack of suitable methods for studying biomolecules within live cells without labelling. Herein, we describe a near-infrared (NIR) surface-enhanced Raman scattering (SERS)-based particle tracking technique gathering chemical information inside live cells for monitoring their intracellular dynamics. The wide-field SERS imaging spectroscopy system facilitates high temporal resolution (200 ms) under high spatial resolution (512 × 512 pixels) for one live cell. With high spatiotemporal resolution and signal-to-background ratio, we show that the Raman signal from intracellular cargoes in live cells is sporadically observed and localized to a vesicular level.
Original language | English |
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Pages (from-to) | 21724-21727 |
Number of pages | 4 |
Journal | Nanoscale |
Volume | 11 |
Issue number | 45 |
DOIs | |
Publication status | Published - 2019 Dec 7 |
ASJC Scopus subject areas
- Materials Science(all)