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$\begingroup$ Sir, my question is about gold sol and not nano particles. $\endgroup$
– Rajath Radhakrishnan
Commented Jan 13, 2014 at 11:40
1

$\begingroup$ We are not taught anything about intra-molecular injection but,it's given in our chemistry textbook as an application of colloids. $\endgroup$
– Rajath Radhakrishnan
Commented Jan 13, 2014 at 11:42
1

$\begingroup$ You might want to read your last comment again. Sometimes our thoughts and our writing take different directions ;) $\endgroup$
– Klaus-Dieter Warzecha
Commented Jan 13, 2014 at 15:44
4

$\begingroup$ Gold nanoparticles are sometimes referred to as "colloidal gold" in mining industry, which I think matches the definition of a gold sol closely enough. $\endgroup$
– chipbuster
Commented Jan 13, 2014 at 22:11

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