You need to know the amount of protein present in your nanocomposite.

You can prep[are a homogenous suspension in buffer or solvent according to the suitability of your enzyme.

A fixed amount of your suspension with known amount of protein can be used to calculate the enzyme activity.

Thanks

Regards

Dear Ashok Kumar Nadda 

Thanks for your help.

Is measurable for nano- composite as artificial peroxidase without protein?

@Sepideh Esmaeily please elaborate the problem.. What do you mean by artificial peroxidase without protein?

Are you using commercial enzyme?

Thanks

Mr. Nadda 

I use reduced graphene oxide and gold nanoparticles as artificial enzyme.

I want calculate activity unit per mg for nanocomposite and compare with activity enzyme HRP.

Thanks for your attention.

Sepideh

Hello Esmaeiy,

You can study the conversion of substrate into product in terms of  umole/ml/minute.

if you are using nanoparticle in place of enzyme for the catalysis then consider the amount of nanoparticles equivalent amount of protein taken for the calculation of U/mg. However it may not agree with the BSA standard or exactly protein but rate of conversion of substarte can be calculated.

Hope it will help you,

best wishes

Dear Ashok Kumar Nadda

Your advice helped me.

Cordially yours,

Sepideh