Now i am working in Ag@SiO2 core shell nanoparticle Preparation. I am not getting core shell structure did same mistake repeatly. I couldnt find my fault.

This my procedure, First i prepared citrate & PVP stabilished Silver nanoparticle. 1 ml of ag collide in 10 ml water after that i add TEOS & ammonia/NaoH.

Please help me..

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Hi Friend,

I will try that one. Thank you so much for ur suggestion.


Thanking You,


With Regards,




How is the structure of your product?


Dieter Vollath

Dear Professor,

Thank You very much for replying.  after addition of TEOS Ag nanoparticles aggregates.If Possible send the Email iD Prof. I will send my TEM Images.


Thanking You,


With Regards,



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