Fig. 6From: Silica Nanoparticles for Intracellular Protein Delivery: a Novel Synthesis Approach Using Green Fluorescent ProteinPhotostability of GFP-doped nanoparticles (CF) and pure GFP in ʟ-arginine. The normalised fluorescence intensity [%] of the emission maximum at 508 nm was measured after exposure to LED light for the given times. Data are mean values. Error bars indicate the standard deviationBack to article page