Journal of Nanomaterials / 2013 / Article / Fig 2

Research Article

Preparation of Size-Controlled Silver Nanoparticles and Chitin-Based Composites and Their Antimicrobial Activities

Figure 2

UV-Vis spectra of small (a), medium (b), and large (c) original Ag NPs in suspensions (original) and supernatants from the postreaction mixture in which various amounts of chitin were reacted with the Ag NPs. Excess Ag NPs in the supernatant of the postreaction mixture decreased as the amount of chitin added increased.