Journal
NANOSCALE
Volume 10, Issue 20, Pages 9729-9735Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/C8NR00515J
Keywords
-
Categories
Funding
- International Postdoctoral Exchange Fellowship Program [20160007]
- National Science Foundation [ECCS-1607250]
Ask authors/readers for more resources
We investigate a cadmium sulfide (CdS) nanowire (NW) laser that is spontaneously internalized into a single cell to serve as a stand-alone intracellular probe. By pumping with nano-joule light pulses, green laser emission (500-520 nm) can be observed inside cells with a peak linewidth as narrow as 0.5 nm. Due to the sub-micron diameter (approximate to 200 nm), the NW has an appreciable fraction of the evanescent field outside, facilitating a sensitive detection of cellular environmental changes. By monitoring the lasing peak wavelength shift in response to the intracellular refractive index change, our NW laser probe shows a sensitivity of 55 nm per RIU (refractive index units) and a figure of merit of approximately 98.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available