Impact of exopolysaccharides on the stability of silver nanoparticles in water.

  title={Impact of exopolysaccharides on the stability of silver nanoparticles in water.},
  author={S Sudheer Khan and Amitava Mukherjee and Natarajan Chandrasekaran},
  journal={Water research},
  volume={45 16},
The stability of commercial silver nanoparticles (SNPs) in aquatic environment plays a significant role in its toxicity to the environment and to human health. Here, we have studied the impact of bacterial exopolysaccharides (EPS) to the stability of engineered SNPs. When nanoparticles are present in neutral water, the nanoparticles exhibited low zeta potential and are least stable. However, in the presence of EPS (10-250 mg/L), the negative surface charge of nanoparticles increased and… CONTINUE READING


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