Materials: - Lemon leaves 25g - Silver Nitrate solution - PVP (polyvinylpyrrolidone) powder - Distill water Step 1: Biosynthesis of Silver Nanoparticles - Wash 25g of fresh lemon leaves in distilled water. - Cut the lemon leaves into small pieces - Add the pieces of lemon leaves in a glass beaker filled with 100 ml of boiling distilled water for 10 minutes. - Filter through Whatman filter paper no.42. - The leave extract solution will be used as a reducing and capping agent. - Add 5ml lemon leaf extract slowly into 45ml 0.002M AgNO3 solution in 100ml flasks at room temperature in dark. Wait one hour for the biosynthesis process to occur. The solution will turn to light brown.
Step 2: Creating the Liquid Bandages with liquid polymer - Dissolve 2g of polyvinylpyrrolidone (PVP) powder in 100ml distill water. PVP is a water-solution polymer. - Add 10ml of nanosilver solution to the PVP solution to create the liquid bandage That's it. You have your nano-silver liquid bandage!