Two phase photochemical synthesis of silver nanoparticles and their impact on the chlorophylls

Abstract

We have designed an experimental study dedicated to silver nanotoxicity using a suspension of citrate-silver nanoparticles, obtained by photochemical reduction. Fine granularity of generally symmetrical shape nanoparticles were evidenced by tansmission electron microscopy. The localized surface plasmon resonance spectral band revealed the intensification of silver nanoparticle formation under UV exposure. The nanotoxicity of silver nanoparticles was tested on cereal sprouts by measuring the concentrations of chlorophylls and carotenes in the green tissue. The differences between control samples, supplied with distilled water and test samples, loaded with different volumes of silver nanoparticles suspension were analyzed statistically, and compared with literature reports.

Keywords:

• Nanotoxicity
• silver nanoparticles
• UV exposure

Acknowledgement

This research was supported by: Romanian project POCU/380/6/13/123623 “PhD students and postdoctoral researchers trained for labor market” at Alexandru Ioan Cuza University in Iasi, Romania.

Additional information

Funding

This research was supported by: Romanian project POCU/380/6/13/123623 “PhD students and postdoctoral researchers trained for labor market”.