Fatima Zia

3 Questions 5 Answers 0 Followers

Questions related from Fatima Zia

I am synthesising nanoparticles and want a better understanding of reagents and what they do - can you help?

For example, what is the role of the surfactant, the stabilizer, redundant, toluene, etc., and what it actually does in terms of its chemistry? I am using thiols as well to functionalize the...

04 April 2014 6,557 7 View

When measuring zeta potential of nanoparticles I get a negative zp for np with a positive surface modification. Why?

After measuring the zeta potential of my positive nanoparticles I attain a negative zeta potential. I also attain a negative zeta potential for negatively charged particles. The nanoparticles are...

01 January 2014 6,240 2 View

Can someone explain the difference between dynamic light scattering and zeta potential? Is DLS used to measure zeta potential or are they different?

Is DLS used to measure zeta potential or does it measure the hydrodynamic diameter of nanoparticles? What is the mechanism behind measuring zeta potential and does it differ from DLS? Many thanks...

01 January 2014 7,265 7 View