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In vivo SERS spectra from teratoma (yellow circle) regions upon injection of CyRLA-572@AuNPs@PEG-anti-CD34, Cy7LA@AuNPs@PEG-anti-CD184 and Cy7.5LA@AuNPs@PEG-anti-Notch1 nanotags. The spectra were scanned at an interval of 2 μm (785 nm excitation wavelength) and the intensities were normalized after baseline corrections. acquisition time: 40 s.
