Ultra-Thin Films of Poly(acrylic acid)/Silver Nanocomposite Coatings for Antimicrobial Applications

Figure 2

UV-Vis spectrum of PAA (0.1 mg) and AgNO₃ (0.5 mL) after addition of AA (10 μL) and NaBH₄ (10 μL) with different concentration of sodium citrate (in µL).