Marzieh Attar

5 Questions 4 Answers 0 Followers

Questions related from Marzieh Attar

How to prevent the aggregation of positively charged nanoparticles in the aqueous environment?

I have made positively charged nanoparticles with Lecithin, Squalene, Tween 80, Span 85 and Dotap. But after using ultrasonic, the particles are aggregated and their size increases. How can...

11 September 2023 3,280 3 View

Can lipid nanoparticles larger than 200 nm pass through the 0.2 filter due to flexibility?

Hi, Can lipid nanoparticles larger than 200 nm pass through the 0.2 filter due to flexibility?

05 August 2023 2,727 2 View

Hi, what is the problem?

I made cationic nanocarrier by lecithin, Squalen, tween 80, span 85 and DOTAP via melting method in 80 C, but nanoparticles had negative charge instead of positive charge. Does anyone know where...

05 August 2023 5,742 1 View

Phenol-chloroform isoamylalcohol

Hi can anyone tell me that if adding chloroform-isoamylalcohol to saturated phenol it changes to two phases or one phase?

13 November 2011 6,096 19 View

Phenol-chloroform preparation

hi everybody I added chloroform-isoamyl alcohol to saturated phenol but it didn't changed to two phases. what is the problem? what can i have done? best

09 November 2011 8,491 2 View