Figure 3From: Development of antimicrobial biomaterials produced from chitin-nanofiber sheet/silver nanoparticle composites The absorbance spectra of Ag NPs. The absorbance spectra of original Ag NP suspension (blue line) and suspension after reaction with 1 cm2 CNFS (red line) (A). The relationship between absorbance at 390.5 nm and the concentration of Ag NPs in the suspension (B).Back to article page