Article Cryogelation of Chitosan Using Noble-Metal Ions: In Situ For...

Sunil Vasu

The word millimolar indicates the concentration of gold nanoparticles in units of mmol/L. This is a low concentration of nanoparticles. Look or think carefully about what problem you need to solve.

Hello and greeting

did you test or study about Turkevich method?

I can introduce some references for synthesis of GNPs.

Yuri Mirgorod sir, I tried borohydride reduction of gold salt while trisodium citrate was used as capping agent. I followed a procedure reported in literature which is as follows,

0.5 ml 10mM GOLD SALT and 0.5ml 10mM Trisodium citrate were added to 19 ml solution and it was stirred for some time. Then freshly prepared ice cold sodium borohydride (0.6ml 0.1M) was added and mixture was vigorously stirred for 10 minutes.

As reported in literature, this method could yield 47nM concentration of AuNp's. Since am working in synthesis of polymer-gold nanocomposite ( Molar Ratio is 1:2). Polymer concentration is 3millimol, the required gold nanoparticle is 12millimol. So I was asking if there is any specific method which could provide concentrated gold nanoparticle as I required.

Sunil Vasu

47 nm is not a concentration, but a diameter or radius of gold nanoparticles. In reactions for producing nanoparticles, it is difficult to plan and obtain a certain concentration. Usually, nanoparticles are synthesized, they are purified from the substances accompanying the reaction, and then a dispersion of nanoparticles of the required concentration is prepared.

Sunil Vasu

Hello

I advise you to study below paper.

Mahyar Cheraghi Thank you sir.