Nanoparticles? Citrate ion?

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Ponyshine
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Nanoparticles? Citrate ion?

Post by Ponyshine »

Hi There,

What is the purpose of the citrate ions used when making gold nanoparticles? Is it to prevent continued growth of the nanoparticles? I'm trying to think of at least 2 reasons citrate is used?

Thanks
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ChenBeier
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Post by ChenBeier »

Citrate is an complex agent for gold ions. Immersion gold bathes also contain this beside cyanide.
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