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UV-Visible spectrum of C. rubens synthesized nanoparticles of different volume of C. rubens extract to (a) aqueous solution of AgNO3 (1 mM) at 10:90, 20:80, 30:70, 40:60, 50:50 (b) aqueous solution of gold (III) chloride trihydrate (1 mM) at 10:190, 20:180, 30:170, 40:160, 50:150.
