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A method for separating PEGylated Au nanoparticle ensembles as a function of grafting density and core size
Feng Lu1, Tennyson L Doane, Jun-Jie Zhu
1Department of Chemistry, Case Western Reserve University, 10900 Euclid Ave., Cleveland, Ohio, 44106 USA. burda@case.edu.
Chemical Communications (Cambridge, England)
|November 15, 2013
Abstract:
After ligand exchange with PEG, Au NPs with differently mixed surface functionalities co-exist in the as-synthesized sample. It is found that the poorly grafted nanoparticles can be simply removed using a chromatographic method, and the well grafted nanoparticles can be eluted as a function of the core size.
