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With the aim of ameliorating its preservation capacity, silver nanoparticles (0 -100 nm) with 99.9% purity and 35 nm average particle size, were used as building material for earthenware jar, an extremely old container which is still used in rural African villages specifically in North Cameroon. Earth material was dissolved in water at the weight ratio of 5% to 10%. Silver nanoparticles were then added to the mixture and stirred to prepare 1% to 5% Ag/Earth paste (1 to 5 ppm). A grounded metaldoi:10.4236/jbnb.2014.53016 fatcat:nbusoqfdsvekjcswunrwo2zrfe