Skip to main content
. Author manuscript; available in PMC: 2015 Sep 21.
Published in final edited form as: Nanoscale. 2014 Aug 7;6(18):10536–10539. doi: 10.1039/c4nr03413a

Fig. 3.

Fig. 3

Imaging AuNRs in live cells. (a)–(c) Imaging AuNRs in live HeLa cells at different delay time between the pulse trains of pump and probe beams. Inset in (c) shows a magnified region with AuNRs. (d) Two-photo luminescence (TPL) image of AuNRs-containing live HeLa cells stained with calcein AM. (e) TA image of AuNRs demodulated by a lock-in amplifier. (f) Merged image of (d) and (e), showing the distribution of AuNRs in a highly fluorescent background. Inset in (f) shows a zoomed region, yellow indicates colocalized TPL and TA signal from AuNRs. Scale bar: 25 μm.