Patent ID: 9403995
Filing Date: 2016-08-02
CPC Classification: A01N,B01J,C09D,D06M

Claim Text:
1. An aqueous dispersion of silver nanoparticles, said dispersion comprising silver nanoparticles of anisotropic shape with at least 65% of the particles having equivalent diameter in range of 0.5 to 6 nm; said dispersion having plasmonic peaks in the range of 330 to 335 nm and 650 to 720 nm and an absence of plasmonic peaks in the range 390 to 410 nm and 410 to 500 nm in UV-Vis spectrum; said dispersion having molar extinction coefficient in the range of 10.1 mM said dispersion having storage stability of 15 to 24 months, and having Minimum Bactericidal Concentration (MBC) in the range of 0.055 to 0.099 ppm against gram positive bacteria, wherein said dispersion of silver nanoparticles is blue in colour.