Effects of silver nanoparticle size, concentration and coating on soil quality as indicated by arylsulfatase and sulfite oxidase activities

Recently, the nanotechnology industry has seen a growing interest in integrating silver nanoparticles (AgNPs) into agricultural products, which increases soil exposure to these particles. This demands an investigation effect of AgNPs on health. Changes enzyme activities upon can serve as early indicators any adverse effects that particles may have quality. study aimed determine AgNP size, concentration, coating, and time two sulfur cycle enzymes, arylsulfatase sulfite oxidase. To investigate sensitivity activity contamination, silt loam samples were treated with 30, 80, 200 nm-sized coated citrate, lipoic acid, polyvinylpyrrolidone at 1, 10, 100 mg Ag kg-1 soil, changes monitored 3 h, d, 30 d after treatment. For comparison, (Ag) ions studied under similar treatment conditions. most concentrations tested, inhibitory different enzymes differed, much stronger oxidase than activity. The concentration played important roles coating type particle size activities.