Fig. 6
a Photograph of mouse injected with 14 different SiO2@Au@Au-RLC with 14 different Raman labeling compounds (RLCs). b Comparison of the 14 normalized Raman spectra of SiO2@Au@ Au-RLC injected into nude mouse with spectra from location without NP injection at 785-nm photoexcitation light, 2.1-mW laser power, and 10-s acquisition time. Each showed distinct Raman spectra with unique bands for label identification