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Table 1 Fluorescence enhancement factor of samples studied

From: Surface enhanced fluorescence of anti-tumoral drug emodin adsorbed on silver nanoparticles and loaded on porous silicon

   EF  
 Air, fresh   Air, 30 days   Vacuum, fresh 
Sample I (Em/Ag/MeOH) 10 7 20
Sample II (Em/Ag/H2O) 14 5 5
Sample III (Em-BSA/Ag/H2O) 24 5 1
  1. EF, maximum enhancement factor, for the fluorescence signal of emodin when is adsorbed on AgNPs and loaded on PSi layers. Reference used is sample IV (Em/MeOH).