Osama Madkhali

2 Questions 6 Answers 0 Followers

Questions related from Osama Madkhali

How to avoid aggregation after centrifugation for GNPs?

I prepared gelatin nanoparticles using two-step desolvation method. I used centrifugation to isolate nanoparticles but the problem is that the nanoparticles get aggregated when I redispersed them....

18 November 2016 8,961 5 View

Why does gelatin get precipitated when I adjust pH to 5 to prepare cationic gelating using spermine?

I am trying to cationize gelatin using spermine. First, I dissolved gelatin in 1 M PBS (pH=5), then I add spermine, but when I adjust pH using 6N HCL the solution get precipitated and cloudy, this...

07 March 2016 4,536 2 View