In a typical reaction procedure, 1 ml crude latex was diluted to 300 ml using triply distilled de-ionized water to make it 3% and 20 ml of this latex solution was mixed with 20 ml 5 × 10−3 M aqueous silver nitrate solution. Mixture was heated at 85 °C with constant stirring for 4 h in oil bath and silver nanoparticles were obtained gradually