Ahmed Eid Radwan

5 Questions 13 Answers 0 Followers

Questions related from Ahmed Eid Radwan

How can I measure Rhodamine123 loading capacity and efficiency that encapsulated in PLGA NPs?

I have encapsulated Rhodamine123 in PLGA 50:50 NPs, using a blend of PLGA and PLGE-PEG 80:20 with solvent displacement. I used 8mg of the dye. How exactly should I measure the absorbance...

11 May 2016 3,504 5 View

How to fabricating PLGA nanoparticles by a solvent displacement procedure? I got poor results after two times, what may be the reason?

I am trying to make PLGA nanoparticles, I need it to be ~100nm. I am using different methods, with the nanoprecipitation, this is the protocol: 76mg of PLGA (MW 12 kDa, 50:50 lactide/glycolide...

01 May 2016 9,687 6 View

How to prepare 5% polyvinyl alcohol (PVA) (75% hydrolyzed) solution?

How to prepare 5% polyvinyl alcohol (PVA) (75% hydrolyzed) solution? Should I use pre-heated water? How long should it be stirring? I found many answers online and not sure what should I do...

28 April 2016 8,625 6 View

What is the best online questionnaire tool?

I am a bit confused about the best types of online questionnaires tools. I need the following features in the tool: - good price - exporting the results to a database such as Excel and SPSS -...

23 December 2013 5,229 3 View

What are the best "Free" Timeline Creation Tools or software?

What is the best software to manage time and work schedule for team work ? I need free software can be used for more than one person

23 December 2013 8,063 3 View