Mechanism for generation of Au-nanoparticles by isolated chloroplasts in presence of light.

<p>Photosynthetic machinery driven by light energy splits water into protons, electrons and oxygen. While electrons are transported to NADP⁺, proton gradient is used for generation of ATP. Present investigations support that electrons can also be donated by light energy driven photosynthetic electron transport system to Au³⁺ to form Au⁰, which nucleate to generate Au nanoparticles.