S.M.Ali Dadfar

7 Questions 17 Answers 0 Followers

Questions related from S.M.Ali Dadfar

How can we increase the solubility of pancreatin enzyme in water?

Dear all, Does anyone have experience with the pancreatin enzyme? It seems the solubility of pancreatin in water is very poor and I am looking for a way to increase its solubility (e.g. adding...

27 October 2022 6,697 4 View

Precipitation of iron oxide nanoparticles coated with citrate in DMEM media

Hello everybody, Do you know how we can prevent the precipitation of iron oxide nanoparticles coated with citrate in DMEM media? Kind regards, Ali

30 May 2017 3,612 2 View

High SD for zeta potential, why?

Dear Scientists, Recently, I have faced with a problem and would like to ask you for some help. I am using Malvern Zetasizer for measuring the zeta potential of nanoparticles. But, I have noticed...

01 January 1970 9,668 4 View

DLS gives peak for any liquids even water, why?

Dear Scientists, I would like to consult you about an issue that I have regarding DLS. As we know DLS measures the hydrodynamic diameter of the nanoparticles according to brownian motion. Also, I...

01 January 1970 6,024 8 View

Measuring the core size and shape of nanoparticles in high viscose liquids

Dear all, I would like to ask you for a method for measuring the core size and shape structure of iron oxide nanoparticles in high viscose liquid (except XRD) which cannot be evaporated. Also, I...

01 January 1970 7,060 8 View

Increasing the stability of nanoparticles

Dear all, I would like to consult you about the techniques or additives that can increase the stability of big nanoparticles (around 800 nm). Actually, the particles are precipitated after a few...

01 January 1970 4,594 20 View

What is the relationship between molecular weight and size?

Dear Scientists, I would like to ask you for sharing your experience regarding the relationship between molecular weight and size (nm). I know that there is no accurate way to find that...

01 January 1970 8,338 4 View