I was used some plant extracts for the synthesis of metal oxides under the ultrasound irradiation. I got the uniform sized nano particles.
Thank you both professors for your answer.
They can act as stabilizing agents
These polyphenols and flavonoids present in the plant extract help metal salt to reduce into metal ions, and thew will act as a stabilizing agent for the above process and as well won't affect the properties of the particles.
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