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Ligand charge density

by GGdog0818
Tags: charge, density, ligand
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GGdog0818
#1
Nov16-13, 03:31 PM
P: 4
I want to exchange my Au-citrate nanoparticle with two kinds of ligands :PEG-COOH and PEG-OH.
Which one is suppose to have more anionic charge density.
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Hyo X
#2
Nov17-13, 02:40 AM
P: 37
The carboxylic acid is more acidic than the alcohol. I vote COOH more anionic.

How are you doing the phase transfer? i have done some phase transfer on citrate capped nanoparticles.
Alkim
#3
Nov19-13, 01:19 PM
P: 98
I agree with Hyo X but don't forget to consider pH and PEG's molecular weight!


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