Analytical Methods for Detection of Gasotransmitter Hydrogen Sulfide Released from Live Cells

Figure 4

(a) Sensing mechanism of SERS nanosensors for detection of endogenous H₂S in living cells. (b) Bright-field microscopy (A1) and dark-field microscopy (B1) images of rat C6 glioma cells after 4 h incubation with AuNPs/4-AA. (c) Cytotoxicity of different concentrations of AuNPs/4-AA in the presence and absence of NaHS after incubation of 48 h. Reprinted from [66] with permission from publisher.

(a)

(b)

(c)