Aida Maaz

8 Questions 15 Answers 0 Followers

Questions related from Aida Maaz

PLGA nanoparticles Freeze drying, what is the best?

Hi Colleagues, Before digging into the literature and trying different approaches I want to ask the experts in here! Regarding the freeze-drying process for PLGA NPs stabilized with different...

30 November 2020 4,362 4 View

PEG-PLGA nanoparticles?

Hello everyone I have a typical question. I am trying to add PEG 5K as a surfactant alongside PVP K25 to make PLGA NPs. I can't understand why when I am trying to wash the particles...

19 November 2020 8,902 1 View

How could I know and control the concentration of Au Nanoparticles suspension as 10% of the expected Au NPs are often lost from washing process?

For seed mediated synthesis of gold nano-crystals with different shapes and sizes. I need to know the exact amount of Au seeds being used for the preparation and which is crucial to the final...

02 February 2019 1,832 2 View

How can I calculate poly dispersity index (PdI) from DLS data?

I need to know the equation used for pdI calculation and make sure if pdI equals the square of the standard deviation / mean diameter is applicable..

31 December 2015 2,550 7 View

Can someone send me a proven formula for microparticles preparation by single emulsification w/o or complex coacervation to be optimized?

I hardly tried with w/o/w microparticles preparation method for gatifloxcin ocular delivery but it didn't work. So I have to test something else to reach the suitable size for ocular delivery with...

05 September 2014 2,110 6 View

Is it possible for the pH of aqueous phase to affect the poly caprolactone polymer during nanoparticles preparation?

I noticed that Zeta Potential value was increased in alkaline aqueous phase, when I prepared Nano formula with PCL poly caprolactone polymer by nano-precipitation method

01 September 2014 7,793 6 View

In microparticles preparation, what are the factors that affect hydrophilic drug's diffusion from inner to outer aqueous phase in w/o/w method?

I am really interested in double emulsification method in microparticles preparation which is suitable for hydrophilic drugs, but I am having difficulties in encapsulating my relatively...

30 August 2014 7,370 8 View

Microparticles preparation with double emulsification w/o/w methods, What are the basic principles for its success?

I am currently working in research entitled: Development and Quality Control of a Sustained Release Ophthalmic Pharmaceutical Product Using Micro / In Situ Gelling for Gatifloxacin drug... and...

27 August 2014 6,706 7 View