Aconcentration variation study ofAgNO3 using 3% aqueous latex
extractwas carried out with concentration of AgNO3 (1×10−3 Mto
5×10−3 M). Fig. 1(b) shows that apart from increasing intensity of
425nm SPR band with increasing concentration of AgNO3, another
band at ∼465nm is appeared. Increasing intensity of the 425nm
SPR band indicates increasing concentration of particle. And the
appearance of red shifted band at ∼465nm at higher concentration
of AgNO3 suggests the formation of larger particles