In general, the measurement of the size of the nanoparticle. Can be classified as flowing :

1- SEM or TEM: can calculate by using a Scanning electron microscope image (SEM) or Transmission electron microscopy (TEM). For more detail check video below

https://www.youtube.com/watch?v=9NLo-LL4kko

2-XRD: X-ray Powder Diffraction can be used for the determent size of the nanoparticle from the position and width of the pick. Scherrer equation can be an application for calculating size of the crystal. For more detail watch youtube below and the excel sheet :

https://www.youtube.com/watch?v=m8L-B4A75Ec

3-DLS: Dynamic Light Scattering Analysis is one of the technical methods for the measurement size of nanoparticle for more information sees the video below :

https://www.youtube.com/watch?v=ET6S03GeMKE

Best regards,

Laith A. Naji

 The Volunteer Research  Assistant/University of Baghdad

You can use several methods to measure size such as Dynamic light scattering or Electron Microscopy techniques such as Transmission Electron Microscopy (TEM) or Scanning Electron Microscopy (SEM). If you have access to Atomic Force Microscope (AFM) that will also work.

Thank you Arun Iyer!

Dynamic light scattering (DLS) is the best method.

Thank you, Mohammadi Ahrouch .

You 're welcome Laura Bulgariu

You could use SEM, and TEM technique.

Thank you very much!

The best would be the TEM.

Contrary to the previous answer(s) the best and fastest method is SEM microscopy using a backscattered detector for Z contrast. An automatic stage comes also handy since it automates the process that necessarily requires scanning the area where the particles are deposited (usually on a disk of a low Z element such as C). This combination also avoids the necessity of covering the sample since the combination above is conductive.

TEM requires painstaking preparation.

Atomic Force Microscope is like watching grass grow.

Thank you!

Thank you!

Thank you.

Transmission Electron Microscopy.

Thank you.

Thank you Ali A. Al-Homaidan

I recommended the answer provided by Dilip Kumar Pal

Best Regards Laura Bulgariu

Thank you Osama Rahil

Thank you.

Thank you Osama Rahil

TEM, SEM and DLS

In general, the measurement of the size of the nanoparticle. Can be classified as flowing :

1- SEM or TEM: can calculate by using a Scanning electron microscope image (SEM) or Transmission electron microscopy (TEM). For more detail check video below

https://www.youtube.com/watch?v=9NLo-LL4kko

2-XRD: X-ray Powder Diffraction can be used for the determent size of the nanoparticle from the position and width of the pick. Scherrer equation can be an application for calculating size of the crystal. For more detail watch youtube below and the excel sheet :

https://www.youtube.com/watch?v=m8L-B4A75Ec

3-DLS: Dynamic Light Scattering Analysis is one of the technical methods for the measurement size of nanoparticle for more information sees the video below :

https://www.youtube.com/watch?v=ET6S03GeMKE

Best regards,

Laith A. Naji

 The Volunteer Research  Assistant/University of Baghdad

• Thank you Mohamed Abd El-Kodous

Thank you very much Laith A. Naji for useful information.

I recommended the answer provided by Dilip Kumr Pal

Thank you Balaji Thorat

I recommend the answer of Prof Naji