Fig. 5From: Aptamer Combined with Fluorescent Silica Nanoparticles for Detection of Hepatoma CellsPhotostability of FITC-TLS11a and of the combination of Bio-TLS11a with SA-FSNPs. a Fluorescence micrographs of HepG2 cells labeled with the combination of Bio-TLS11a and SA-FSNPs (upper row) or with FITC-TLS11a alone (lower row) and then continuously irradiated for the indicated periods. b Quantitative analysis of fluorescence intensity after different irradiation periods. *** P < 0.001Back to article page