metal nanoparticles are a soft material and their melting point are much less than thei bulk state tha give a statistical probability for their size shape inside the glass. However a sphercal shape is the most probable particularly for imbeded particles

Thank you for answering Mr. Omar. But how to add them to glass could you share some articles for such procedure?

You can add silver and gold nanoparticles to glass surfaces (in this case, after shaping!) by simple silanization of it, by using (3-Aminopropyl)triethoxysilane (APTES) or (3-mercaptopropyl)trimethoxysilane (MPTS) or similar reactants. in this way, you form a grafting layer ready to bind NPs exploiting electrostatic interactions (ammonium groups) or covelants bonds (S-Ag or S-Au).

see for example Journal of Colloid and Interface Science 350 (2010) 110–116 or Biomaterials 35 (2014) 1779-1788

Thank you Dr. Taglietti.

This condition depend on the technique which use to prepare the metal nanoparticles on glass, and i think there are many factors which effect on the size and shape of nanoparticles after deposited, such as deposition temperature, type of solution, another materials which may interaction with the initial metal nanoparticles and caused new compounds which tend to change the size and shape the new composite nanoparticles.

With best wishes

Dear Dr. Bilal

I ment in my question that I want to add metal nanoparticles that are already synthesized to glass without changing in the nano properties. So how to do it?

Dear Mrs. Fadwaa

Did you mean glass substrate?

Yes, Dr. Bilal.

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