Figure 2From: Biomimetic Synthesis of Gelatin Polypeptide-Assisted Noble-Metal Nanoparticles and Their Interaction Studya Relation between the reaction time and temperature ( C gelatin : 0.4 wt%), The reaction time was determined by UV–vis spectra. When the typical absorption band of gold nanoparticle was stable, the reaction is considered to be over; b UV–vis spectra of gelatin-AuNPs colloids synthesized at different temperature (1) 100°C, (2) 80°C, (3) 60°C.Back to article page