Arman Moini Jazani

8 Questions 11 Answers 0 Followers

Questions related from Arman Moini Jazani

What is a common fluorescence dye to label polymeric naoparticles?

I am looking for a fluorescence dye to label a block copolymer micelles for examining its cellular uptake. I am looking for a dye that has a functional group such as SH-, NH2-, COOH so I could...

11 April 2018 4,578 7 View

Why in RAFT polymerization, monomers don't grow on the radical initiator (AIBN)?

I am using AIBN as radical initiator and a raft agent (4-Cyano-4-(phenylcarbonothioylthio)pentanoic acid) for RAFT polymerization. I am wondering how come methacrylate monomers are only growing...

08 January 2018 8,925 9 View

How to make 10 mM glutathione solution of pH 7.4?

I am trying to make glutathione solution of pH 7.4. When I add glutathione to PBS (pH 7.4), the pH goes down drastically due to the acidity of glutathione. Can you recommend me a procedure for...

03 October 2017 5,456 4 View

Why am I getting negative fluorescence?

Hi, I am trying to determine critical micelle concentration using nile red and I am using Agilent Cary Eclipse Fluorescence Spectrophotometer. I don't know why I am I always getting values under...

28 July 2017 4,221 10 View

Is ester stable enough during the deprotection of trifluoroacetamide by basic hydrolysis?

Hi, I have trifluoroacetamide protecting group in my structure and I want to deprotect it under basic condition. There is also one ester in my structure. Is it possible to deprotect the...

03 November 2016 446 3 View

Can I deprotect trifluoroacetamide by alkaline hydrolysis if I have tertiary bromide group in my structure?

Hi, I have a structure with trifluoroacetamide at one end and ATRP initiator (tertiary bromide) at the other end. I want to deprotect the trifluoroacetamide in the alkaline condition and I cannot...

01 November 2016 9,244 6 View

How to improve reactivity of -NH2 toward Carbonyl Imidazole (CI) activated PEG?

I have a compound with primary amine end, and I need to attach it to the PEG-CI to form carbamate, but the reaction doesn't happen very well. I see the CI peaks in my H-NMR after the reaction and...

01 November 2016 5,492 2 View

Which one is stronger in alkaline hydrolysis? Carbamate or Ester?

I have to do alkaline hydrolysis for deprotection of one the compound I am synthesizing. I can synthesize this compound with both carbamate or ester but I want to make sure that this compound is...

10 September 2016 8,491 5 View