In this paper we report our results on the green synthesis of nontoxic, stable, and small size gold nanoparticle suspensions. We used the
single and two-beam laser to ablate a gold target submerged in deionized water containing chitosan or starch as the stabilizing agent.
Since both chitosan and starch are biodegradable and biocompatible, use of these natural polymers for gold nanoparticle protection
and stabilization does not introduce any environmental toxicity or biological hazards.