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Updated: Jul 10, 2026

Characteristics of Precipitation-formed Polyethylene Glycol Microgels Are Controlled by Molecular Weight of Reactants
Published on: December 23, 2013
Protein interactions with oligo(ethylene glycol) (OEG) self-assembled monolayers: OEG stability, surface packing
Lingyan Li1, Shengfu Chen, Shaoyi Jiang
1Department of Chemical Engineering, University of Washington, Seattle, WA 98105, USA.
Abstract:
We present a study of protein adsorption on oligo(ethylene glycol) (OEG) self-assembled monolayers (SAMs) at a range of OEG surface densities. OEG SAMs were formed in mixed ethanol and water solutions at different assembly temperatures to adjust the packing density of EG4-SAMs. These SAMs were characterized using X-ray photoelectron spectroscopy (XPS). Fibrinogen adsorption on these surfaces was measured by a surface plasmon resonance (SPR) sensor at different temperatures. This work is aimed at addressing three important issues for protein-OEG interactions, i.e., (i) OEG stability, (ii) the correlation between OEG surface densities and surface non-fouling properties, and (iii) protein adsorption on OEG surfaces at different temperatures.
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