Figure 1.
(a) Colour of the AgNO3 and carrageenan mixture before (left) and after (right) reaction at 90 °C for 2 h; (b) UV-Vis spectrum of AgNPs produced with different carrageenan concentrations and the corresponding ʎmax; (c) proposed mechanism of the green synthesis of AgNPs by carrageenan as a reducing and stabilising agent.